High Yield Flashcards

1
Q

Causes of a motor peripheral neuropathy

A
  • Diabetes
  • Multifocal motor neuropathy
  • Charcot Marie tooth
  • Spinal muscular atrophy
  • Motor neuron disease
  • CIDP (motor predom form)
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2
Q

Causes of a sensory peripheral neuropathy

A
  • Diabetes*
  • Alcohol*
  • Infiltrative (amyloid)*
  • Vasculitis *
  • Medications*: amiodarone, cisplatin, izoniazid
  • Paraprotein (MGUS)
  • Sjogren’s
  • B12 deficiency
  • Syphilis
  • = painful
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3
Q

Aortic stenosis signs of severity

A
  • Plateau pulse
  • Aortic thrill
  • Late peaking murmur
  • S4
  • LVF
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4
Q

Aortic stenosis indications for surgery

A

Severe = valve area <1cm2, gradient >40mmHg

  • severe plus symptoms
  • severe plus LV dysfunction
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5
Q

Mitral regurgitation signs of severity

A
  • LV dilation, displaced apex bear
  • Small volume pulse (very severe)
  • soft s1
  • early A2
  • S3
  • LVF
  • Pulmonary HT
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6
Q

Mitral regurgitation indications for surgery

A
  • Acute MR
  • NHYA III/IV sx
  • LV dysfunction but EF >30%
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7
Q

HOCM signs of severity

A

ECG: LVH, lateral ST and T wave changes, deep Q waves

TTE: asymmetrical hypertrophy with septal hypertrophy and systolic anterior motion of the mitral valve.

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8
Q

Aortic stenosis aeitiology

A
  1. Degenerative
  2. Bicuspid aortic valve
  3. Rheumatic
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9
Q

Mitral stenosis causes

A
  1. Rheumatic
  2. Severe mitral annular calcification (rare assoc hypercalcaemia and hyperPTH)
  3. After mitral valve repair
  4. Congenital
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10
Q

Mitral stenosis signs of severity

A
  • Small pulse pressure
  • Soft S1
  • Early opening snap (due to raised LA pressure)
  • Length of the mid-diastolic rumbling murmur
  • Diastolic thrill at apex
  • Pulmonary HT
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11
Q

Mitral regurgitation: causes

A

CHRONIC
- Degenerative disease
- Mitral valve prolapse
- Rheumatic
- Papillary muscle dysfunction (LVF, ischaemia)
- CTD: RA, AS
- Congenital (e.g. endocardial cushion defect)
ACUTE
- IE (e.g. perforation of anterior leaflet)
- MI (chorae rupture or papillary muscle dysfunction)
- Trauma
- Surgical

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12
Q

Aortic regurgitation: signs of severity

A
  • Collapsing pulse
  • Wide pulse pressure (>80mmHg)
  • Length of the decrescendo diastolic murmur
  • Third heart sound
  • Soft A2
  • LVF
  • Austin flint murmur (diastolic rumble due to regurgitant jet limiting mitral inflow)
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13
Q

Aortic regurgitation: causes

A
  • Rheumatic valvular disease
  • Congenital (biscuspid valve)
  • Seronegative arthropathy (AS)
  • Aortic root disease
    • Marfan’s
    • Aortitis (e.g. AS, RA, tertiary syphilis)
    • Dissecting aneurysm
  • IE
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14
Q

Tricuspid regurgitation: CFx

A
  • V waves in JVP
  • RV heave
  • Pansystolic murmur (maximal LSE and on inspiration)
  • Pulsatile liver
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15
Q

Tricuspid regurgitation: causes

A
  • Functional (RVF)
  • Rheumatic
  • IE
  • Congenital (Ebstein’s anomaly)
  • Tricuspid valve prolapse
  • Right ventricular papillary muscle infarction
  • Trauma
  • Ventricular pacemaker can lead to decoupling of leaflet
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16
Q

HOCM clinical features

A

AUSC: Ejection systolic murmur loudest at LSE which increases with release of valsalva manouvre
PULSE: sharp, rising and jerky. Rapid ejection by the hypertrophied ventricle early in systole is followed by obstruction caused by the displacement of the mitral valve into the outflow tract.
JVP: prominent a wave (due to forceful atrial contraction against a non-compliant right ventricle)
PALP: double or triple apical impulse (due to presystolic expansion of the ventricle caused by atrial contraction)

Dynamic manoeuvre: outflow murmur is INCREASED by the valsalva manoeuvre, standing, isometric exercise. DECREASED by squatting.

ECG: LVH, lateral ST and T wave changes, deep Q waves

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17
Q

HOCM causes

A
  1. Autosomal dominant with variable expressivity: sarcomeric heavy chain
  2. Idiopathic
  3. Friedreich’s ataxia
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18
Q

ASD CFx

A
  • RV enlargement (or normal)
  • Fixed splitting S2
  • ES murmur in pulmonary area
  • LV impulse palpable
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19
Q

Pulmonary stenosis CFx

A
  • Peripheral cyanosis due to low CO
  • JVP A waves due to RA hypertrophy
  • RV heave
  • Thrill over pulmonary area
  • Harsh ejection systolic murmur max in pulmonary area (increased on inspiration)
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20
Q

Pulmonary stenosis: signs of severity

A
  • Ejection systolic murmur peaking late in systole
  • Absence of an ejection click
  • Presence of S4
  • Signs of RV failure
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21
Q

Pulmonary stenosis causes

A
  • Congenital
  • Carcinoid syndrome
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22
Q

Mitral stenosis CFx

A

GENERAL: tachypnoea, mitral facies, peripheral cyanosis (if severe)
PULSE: normal or reduced in volume (due to reduced CO), AF (secondary LA enlargement)
JVP: prominent a wave (if pulm HT), loss of a wave (if AF)
PALPATION: tapping apex beat (palpable S1), RV heave and palpable P2 (if pulm HT present), diastolic thrill (rare)
ASCULTATATION: loud S1 (valve cusps wide at systole), diastolic decrescendo murmur at mitral area

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23
Q

Mitral regurg CFx

A

SYMPTOMS: dyspnoea (increased LA pressure), fatigue (decreased CO).
GENERAL SIGNS: tachypnoea
PULSE: normal or sharp upstroke due to rapid LV decompression, AF common
PALPATION: apex beat displaced, diffuse and hyperdynamic, pansystolic thril is occ present at the apex, parastenal impulse (LA enlargement behind RV)
ASCULTATION: soft or absent S1 (by end of diastole, LA and LV pressures have equalised and valve cusps drifted back together), LV S3 (due to rapid LV filling in early diastole), pansystolic murmur max at apex usually radiating to axilla

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24
Q

MVP CFx

A

Systolic click or clicks at a variable time (usually midsystolic)
High pitched late systolic murmur, commencing with the click and extending throughout the rest of systole

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25
Aortic stenosis CFx
SYMPTOMS: exertional chest pain, dyspnoea and syncope PULSE: plateau or small volume pulse PALPATION: - Apex beat is hyperdynamic - Systolic thrill at the base of the heart ASCULTATION: - Harsh midsystolic ejection murmur (max over aortic and radiates to carotids; louder with pt sitting up and in expiration - narrowly split or reversed S2 (delayed LV ejection)
26
Aortic regurgitation CFx
SYMPTOMS: exertional SOB, fatigue, palpations, exertional agina GENERAL INSPECT: marfan's, AS, seronegative arthropathy, argyl-robinson pupils PULSE: collapsing, waterhammer, bisiferens (severe), prominent carotid pulse BP: wide pulse pressure PALP: hyperkinetic apex beat, diastolic thrill ASCULTATION: soft A2, decrescendo high pitched diastolic murmur immediately after S2 loudest at 3rd and 4th intercostal space. Note: may have associated systolic ejection flow murmur or as autin flint murmur (low pitched rumbling mid diastolic and presystolic murmur audible at apex)
27
Tricuspid regurgitation: CFx
JVP: large v waves, elevated if RHF PALPATION: right ventricular heave ASCULTATION: pansystolic murmur, max at lower edge of sternum that increases on inspiration ABDO: pulsatile, large and tender liver. May have ascities and pleural effusions LEGS: dilated, pulsatile veins
28
VSD CFx
PALP: - Hyperkinetic displaced apex if the defect is large - Thrill at the left sternal edge. ASCULT: - Harsh pansystolic murmur max at the left sternal edge with a loud 3rd or 4th heart sound; louder on expiration. May have assoc MR. Murmur louder and harsher when the defect is small. Signs of severity: pulm HT, cyanosis Causes: - Congenital - Rupture in AMI - Tetraology of fallot (VSD, RV obstruction, overriding aorta) - Down's syndrome
29
Pulmonary fibrosis causes
UPPER LOBE: (SCHART) - Silosis, sarcoidosis - Coal workers pnuemoconiosis - Histiocytosis - Anklyosing spondylitis, allergic bronchopulmonary aspergillosis - Radiation - Tuberculosis LOWER LOBE: (RASCO) - RA - Abestosis - Scleroderma - Cryptogenic fibrosing alevolitis - Drugs (busulphan, bleomycin, nitrofurantoin, hydralazine, MTX, amiodarone)
30
Pulmonary fibrosis: CFx
GENERAL: dyspnoea, cyanosis, clubbing PALP: slightly reduced expansion ASCULT: fine late inspiratory or pan-inspiratory crackles Signs of associated CTD RFTs = reduced FVC and DLCO IPF on CT scan: traction bronchiectsis, honeyhombing
31
COPD: CFx
GENERAL: pursed lip breathing, barrel shaped chest, use of accessory muscles. PALPATION: reduced chest expansion (<5cm), hyperinflated chest PERCUSSION: hyperresonant BREATH SOUNDS: decreased, early inspiratory crackles Signs of RV failure in severe disease
32
Bronchiectasis: CFx
SYSTEMIC: fever, cachexia, sinusitis (70%), clubbing, cyanosis (if severe) SPUTUM: voluminous, purulent, blood stained ASCULT: coarse pan-inspiratory or late inspiratory crackles over the affected lobe +/- wheeze If severe: copious sputum, clubbing, widespread crackles, signs of airway obstruction, signs of respiratory failure and cor pulmonale.
33
Bronchiectasis: Causes
CONGENITAL: primary ciliary dyskinesia, cystic fibrosis, congenital hypogammaglobulinaemia ACQUIRED: infections in childhood, localised disease such as foreign body / bronchial adenoma / TB, allergic bronchopulmonary aspergillosis (proximal bronchiectasis) CT: tree in bud appearance, dilated thickened airway (tram tracking)
34
Pleural effusion: CFx
- Dull to percussion - Absent breath sounds - Decreased vocal resonance
35
Pleural effusion: causes
TRANSUDATE: cardiac failure, hypoalbuminaemia (nephrotic syndrome, CLD), hypothyroidism, Meigs syndrome EXUDATE: pneumonia, neoplasm (bronchial carcinoma, metastatic carcinoma, mesothelioma), TB, pulmonary infarction, subphrenic abscess, acute pancreatitis, CTD, drugs (cytotoxics), irradiation, trauma HAEMOTHORAX: severe trauma, rupture of a pleural adhesion containing a blood vessel CHYLOTHORAX: trauma or surgery to the thoracic duct, carcinoma or lymphoma involving the thoracic duct EMPYEMA: pneumonia, lung abscess, bronchiectasis, TB, penetrating chest wound
36
Pleural effusion: light's criteria
Exudate= Pleural:serum protein >0.5 Pleural LDH >2/3 upper limit of normal Pleural:serum LDH >0.6
37
Clubbing causes
RESP: lung carcinoma (usually not SCLC), chronic pulmonary suppuration (e.g. bronchiectasis, lung abscess, empyema), idiopathic pulmonary fibrosis, asbestosis, cystic fibrosis, pleural fibroma or mesothelioma, mediastinal disease (e.g. thymoma, lymphoma, carcinoma). CVS: IE, cyanotic congenital heart disease OTHER: IBD, cirrhosis, coeliac disease, thyrotoxicosis (thyroid acropachy), brachial AV aneurysm or arterial graft sepsis (unilateral), neurogenic diaphragmatic tumours, familial or idiopathic, hemiplegic stroke (unilateral).
38
DDx dull percussion and reduced breath sounds
- Pleural effusion - Consolidation - Collapse (mucous plug, foreign body, airway obstruction, compression from external mass or lymph node) - Raised hemidiaphragm
39
Pneumonectomy CFx
- Tracheal deviation towards affected side - Lateral scar - Reduced chest expansion on affected side - Dull percussion + absent breath sounds + reduced vocal resonance in affected lower zone
40
Hepatomegaly causes
``` # Liver - Alcoholic hepatitis - NAFLD - Malignancy (HCC or mets)* - Viral hepatitis - Haemochromatosis - Budd chiari - Polycystic liver # Haem - Myeloproliferative disease* - CML - Lymphoma # Infiltrative - Amyloid - Sarcoid # Right heart failure* # Infective - Hydatitid disease - HIV ``` * = causes massive hepatomegaly MASSIVE: metastases, alcoholic liver disease with fatty infiltration, myeloproliferative disease, RHF, HCC. MODERATE: above + haemochromatosis, haematological disease (CML, lymphoma), fatty liver (obesity, DM, toxins). MILD: above + hepatitis (viral, drugs), cirrhosis, biliary obstruction, granulomatous disorders, hydatid disease, amyloidosis and other infiltrative diseases, HIV infection, ischaemia.
41
Splenomegaly causes
``` # Haem: - myeloproliferative disease (PCRV, myleofibrosis) - malignant (CML, AML, lymphoma) - haemolytic anaemia (hereditary sphereocytosis, autoimmune heamolytic anaemia) # Infective (EBV, CMV, hepatitis) # CTD (RA, SLE) # Infiltrative (sarcoidosis, amyloidosis) # Portal hypertension and CLD ``` MASSIVE: CML, myelofibrosis, primary lymphoma of spleen, hairy cell leukaemia, malaria, kala-azar. MODERATE: above + portal hypertension, lymphoma, leukaemia (chronic or acute), thalassaemia, storage diseases (e.g. Gaucher's disease). SMALL: above + other myeloproliferative disorder (polycythemia rubra vera, ET), haemolytic anaemia, megaloblastic anaemia (rarely), infection (EBV, hepatitis, bacterial / IE), CTD (RA, SLE, polyarteritis nodosa), infiltration (amyloidosis, sarcoidosis)
42
Hepatosplenomegally causes
``` # Chronic liver disease with portal hypertension # Haematological - Myeloproliferative - Malignant (lymphoma, CML, AML) - Non-malignant (autoimmune haemolytic anaemia, hereditary spherocytosis, sickle cell anaemia, thalassaemia) # Infection - Viral hepatitis - EBV, CMV # Infiltative - Amyloid - Sarcoidosis # Connective tissue disease - SLE # Endocrine - Acromegaly - Thyrotoxicosis ```
43
Causes of generalised lymphadenopathy
- Lymphoma (rubbery and firm) - Leukaemia (CLL, ALL) - Malignant disease (metastases or reacitve changes usually causing asymmetrical, very firm nodules) - Infections: viral (CMV, HIV, EBV), bacterial (TB, brucellosis), protozoal (toxoplasmosis) - CTD (RA, SLE) - Infiltrations (sarcoidosis) - Drugs (phenytoin)
44
Chronic liver disease: CFx
HANDS: leuconychia, clubbing, palmar erythema, bruising, asterixis FACE: jaundice, scratch marks, spider naevi, bruising, pectoral muscle wasting CHEST: gynaecomastia, loss of body hair, bruising ABDO: hepatosplenomegally, signs of portal hypertension, testicular atrophy LEGS: oedema, muscle wasting, bruising Two or more suggest cirrhosis: spider naevi, palmar erythema, splenomegaly, ascites, abnormal veins on abdomen. Signs of decompensated CLD - Asterixis - Encephalopathy - Ascites - Icterus
45
Chronic liver disease: causes
- Alcohol - postviral hep B or C - NASH - drugs (methyldopa, chlorpromazine, isoniazid, niteofurantonin, PTU, MTX, amiodarone) - autoimmune - haemacheomatosis - Wilson's disease - PSC - PBC - alpha 1 antitrypsin deficiency - cystic fibrosis - budd chiari syndrome - cardiac failure - idiopathic
46
Causes of portal hypertension
1. Cirrhosis 2. Other - Presinusoidal: portal vein compression (e.g. lymphoma, carcinoma), intravascular clotting (e.g. polycythemia), umbilical vein phlebitis - Intrahepatic: sarcoid, lymphoma or leukaemic infiltrates, congenital hepatic fibrosis - Postsinusoidal: hepatic vein outflow obstruction (budd chiari: idiopathic, myleloproliferative disease, tumour, PNH, OCP), veno-occlusive disease, constrictive pericarditis, CCF
47
Signs of portal hypertension
- Splenomegally - Collateral veins (on abdomen or haematemesis) - Ascites
48
DDx ascites
- Chronic liver disease - Malignancy (HCC or other abdo mets) - Fluid overload (nephrotic syndrome, right heart failure) - Infection (TB, SBP) - Vascular (budd chiari)
49
Approach to a PCKD
1. Take BP (75% have hypertension) 2. Examine urine for haematuria (haemorrhage into a cyst) and proteinuria (usually <2g/day) 3. Looks for anaemia (from CKD) or polycythemia (due to high EPO). Hb usually higher than expected for degree of renal failure 4. Note the presence of hepatic cysts (present in 30% of cases) and splenic cysts (rare). Subarachnoid haemorrhage occurs in 3% of pts ASK: - FBE (anaemia) - UEC (renal function) - Abdominal US to see cysts on kidney and liver
50
Difference between kidney and spleen
- Spleen has notch - Spleen dull to percussion - Cannot palpate above spleen - Spleen not ballotable - Spleen moves inferomedially with respiration
51
RA CFx
GENERAL: ?cushingoid appearance HANDS: small joint symmetrical polyarthritis, DIP sparring, ulnar deviation, Z deformity of thumb, swan neck deformity, boutonniere deformity, volar subluxation of MCP joints. ARMS: RA nodules FACE: redness and dryness of eyes (sjogren's syndrome in 10%), scleritis, dry mouth. CHEST: pleural effusion, ILD, pericardial rub, valvular regurg (particularly aortic) ABDO: splenomegaly (10%, consider Felty's syndrome), hepatomegaly (MTX) LL: stocking distribution peripheral neuropathy, cord compression (if atlanticoaxial disease), feet arthropathy, achilles tendon nodules Other sites: elbows, upper cervical spine, knees, tarsal and metatarsophalangeal joints Deformities: Boutonniere = flexion of proximal interphalangeal joint and extension of distal interphalangeal joint of the hand. Swan neck deformity = hyperextension at proximal interphalangeal joint and flexion at distal interphalangeal joint. Z-deformity of thumb = hyperextension of the interphalangeal joint, fixed flexion and subluxation of the metacarpophalangeal joint
52
Psoriatic arthritis CFx
Monoarticular and oligoarticular arthritis of the hands and feet. NAILS: oncholysis, pitting, ridging, hyperkeratosis. SKIN: rash elbows and behind ears
53
OA CFx
Symmetrical | Heberden's nodes (DIP), Bouchard's nodes (PIP)
54
DDx deforming polyarthropathy
RA Seronegative spondyloarthropathy (psoriatic arthritis, ankylosing spondylitis, Reiter's disease) Chronic tophaceous gout (rarely symmetrical) Primary generalised OA
55
Scleroderma CFx
CREST = calcinonsis, Raynauds, oesophageal dysmotility, sclerodactyly, telangiectasia GENERAL: bird like facies, weight loss HANDS: calcinosis, atophy of distal tissue pulp (Raynauds), sclerodactyl, telangiectasia, dilated capillary loops, small joint arthopathy and tendon crepitus, fixed flexion deformity, hand function BP ARMS: skin tightening or thickening, pigmentation, vitiligo, hair loss, proximal myopathy HEAD: alopecia, eyes (anaemia, difficulty with closing), mouth (puckered, difficulty opening), pigmentation, telangictasia, neck muscle wasting and weakness DYSPHAGIA CHEST: tight skin, cor pulmonale, pericarditis, failure, ILD LEGS: skin lesions, vasculitis Other: urine analysis (proteinuria), temp chart (infection), stool examination (steatorrhoea)
56
Hypothyrodism CFx
GENERAL: mental and physical sluggishness. HANDS: peripheral cyanosis (reduced CO), cool and dry skin, yellow discolouration of palms due to hypercarotenaemia (slowed hepatic metabolism), palmar crease pallor (anaemia) ARMS: proximal myopathy (rare), hung up biceps reflex (delayed relaxation) FACE: thickened skin, alopecia, vitiligo (an assoc autoimmune disease), periorbital oedema, loss or thinning of outer third of the eyebrows, coolness of skin and hair THYROID: may see goitre (due to oversecretion of TSH) if cause severe iodine deficiency, late Hashimoto's disease, treated thyrotoxicosis, inborn errors of metabolism. CHEST: pericardial effusion, pleural effusion LEGS: non-pitting oedemea, delayed relaxation of LL reflexes ('hung up'), peripheral neuropathy Neuro associations: entrapment of nerves, delayed ankle jerk, muscle cramps. Less common: peripheral neuropathy, proximal myopathy, hypokalaemic periodic paralysis
57
Hyperthryoidism CFx
GENERAL: weight loss, anxiety HANDS: fine tremor (sympathetic overactivity), onycholysis, thyroid acropathy (clubbing), palmar erythema, sweatiness/warmth PULSE: sinus tachycardia or AF (shortened refractory period to do sympathetic drive) ARMS: proximal myopathy, brisk reflexes EYES: exophthalmos, proptosis (Cx= chemosis [oedema of conjunctiva and injection of sclera], corneal ulceration, optic atrophy, opthalmoplegia [infeior rectus lost first]), lid retraction, test for lid lag (descent of lid lags behind eyeball) NECK: examine for thyroid enlargement (Graves = diffuse enlargement, subacute = tender thyroid). If thryoidectomy scar assess for hypoparathyroidism CHEST: systolic flow murmurs, CCF LEGS: pretibial myxodema (Graves), proximal myopathy and hyperreflexia
58
Causes of thyrotoxicosis
PRIMARY: Grave's disease, toxic multinodular goitre, hashimoto's thyroiditis in early stage, subacute thyroditis, post partum thyriditis, iodine induced SECONDARY: pituitary (rare), hydatidorm moles or choriocarcinomas, struma ovarii, drugs (amiodarone)
59
Causes of hypothyroidism
PRIMARY: - Without goitre (decreased or absent thyroid tissue): idiopathic atrophy, treatment of thyrotoxicosis, agenesis or a lingual thyroid, unresponsiveness to TSH. - With a goitre (decreased thyroid hormone synthesis): chronic autoimmune disease (e.g. Hashimoto's), drugs (lithium, amiodarone), inborn errors, endemic iodine deficiency SECONDARY: pituitary lesions TERTIARY: hypothalamic lesions TRANSIENT: thyroid hormone withdrawn, subacute thyroiditis, post partum thyroiditis.
60
CFx of acromegaly
GENERAL: characteristic face and body habitus with frontal bossing HANDS: spade-like hands (due to soft tissue and bony enlargement), increased sweating and warmth (increased metabolic rate), thickened skin, OA changes due to skeletal overgrowth, examine for median nerve entrapment (due to soft tissue overgrowth) ARMS: proximal myopathy, ulnar nerve thickening behind medial epicondyle BP check AXILLAE: skin tags (molluscum fibrosum), feel for greasy skin, acanthosis nigricans FACE: supraorbital ridge causing frontal bossing, thickened lips EYES: examine visual fields for bitemporal hemianopia, look in fundi for optic atrophy, angioid streaks (red brown streaks that emanate from the optic disk), diabetic changes and papilloedema, MOUTH: enlarged tongue, teeth splayed and separated NECK: enlarged thyroid CHEST: coarse body hair, gynaecomastica, arrhythmias, cardiomegally, CCF BACK: kyphosis ABDO: hepatic, splenic and renal enlargment, look for tesitcular atrophy. LL: OA in hips and knees. Foot drop due to common peroneal nerve entrapment Ask for: - urine ?glucose - rectal exam ?colonic polyps Signs of active disease: large number of skin tags, excessive sweating, glycosuira, increased visual field loss, enlarging goitre, hypertension.
61
Diabetes CFx
GENERAL: dehydration, obesity, cushing's faecies, kussmaul's breathing LOWER LIMBS: - Inspect: necrobiosis, hair loss, pigmented scars, ulceration, superficial skin infection, diabetic dermopathy (small rounded plaques with raised borders lying in a linear fashion over the shins), injection sites on thighs, charcot's joints (grossly deformed joints due to loss of proprioception or pain) - Palpate: peripheral pulses, capillary return - Neuro ex: peripheral neuropathy, proprioception, reflexes, proximal myopathy UPPER LIMBS: - Nails: ?candida BP including postural drop FACE: - Eyes: visual acuity, look for argyll robertson pupils, examine retina, assess for opthalmoplegia (CN III palsy most common) - Ears: examine for signs of infection - Mouth: ?candida NECK: Carotid arteries palpate and ascultate CHEST: look for acanthosis nigricans ABDO: palpate for hepatomegally ASK: - Urinanalysis ?glucose, ?proteinuria
62
Pyramidal weakness
UL: flexors stronger than extensors LL: extensors stronger than flexors
63
Receptive dysphasia
Def: patient cannot understand, speaks nonsense Aeit: leison (infarction, haemorrhage, tumour) in the dominant hemisphere in the posterior part of first temporal gyrus (WERNICKE'S AREA) CFx: - Patient cannot understand or follow commands - Speech is fluent but disorganised - Cannot name objects or repeat 'no ifs, ands or buts'
64
Expressive dysphasia
Def: patient understands but cannot speak properly Aeit: posterior part of the dominant third frontal gyrus (BROCA'S AREA) CFx: - Non fluent speech - May be able to name objects and repeat phrases - Can follow commands - If hemiparesis present UL>LL affected
65
Nominal dysphasia
Def: cannot name objects but other aspects of speech normal Aeit: lesion of the dominant posterior temporoparietal area CFx: - May use long sentences to overcome not remembering specific words
66
Conductive dysphasia
Def: can follow commands but difficulty in repeating statements and naming objects Aeit: lesion of the arcuate fasciculus and other fibres linking wernicke's and broca's areas.
67
Parietal lobe dysfunction CFx
DOMINANT: - Acalculia (can't do basic sums) - Agraphia (can't write) - Left-right disorientation (show R then L hand, then touch R ear with L hand and L ear with R hand) - Finger agnosia (can't name fingers) NON-DOMINANT: - Graphaesthesia (can't recognise numbers drawn on the skin) - Tactile extinction (can't tell which side being touched when both sides touched) GENERAL: - Sensory and visual inattention (get inattention on L side with R sided lesion) - Lower quandrantinopia - Astereogenesis (tactile agnosisa) - Two point discrimination - Dressing and constructional apraxia - Spatial neglect (incomplete clock drawing)
68
Temporal lobe dysfunction CFx
- Decreased short term memory (recall 3 objects) - Confabulation - Upper quadrantinopia - Receptive dysphasia if dominant lobe
69
Frontal lobe dysfunction CFx
- Personality change - Primitive reflexes (grasp [stroke palms, graps on side contralateral to the lesion], pout [stroke upper lip with tendon hammer induces pouting of lips]) - Anosmia - Optic nerve compression-> atrophy (rare due to a space occupying lesion) - Gait apraxia - Leg weakness - Loss of micturition control - Expressive dysphasia - Concrete thinking (can't interpret proverb)
70
Occipital lobe dysfunction CFx
- Homonymous hemianopia | - Alexia (can't read)
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CN III palsy CFx
CFx: - Complete ptosis - Eye down and out (divergent strabismus) - Dilated pupil unreactive to direct light (if parasympathetic fibres affected, consensual reaction in the opposite normal eye is intact) - Unnreactive to accomodation Motor function - Superior rectus - Inferior oblique - Medial rectus - Inferior rectus
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CN III palsy aeitology
- CENTRAL: vascular lesions in brainstem, tumours, demyelination - PERIPHERAL: compressive lesions (usually aneurysm on PICA, tumour, orbital lesion), ischaemia (arteritis, DM, migraine)
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CN IV palsy
CFx: - Can't turn eye inward and down when eye adducted (eye when adducting rotates up 'nasal upshoot') Motor function - superior oblique (intorts eye / depresses eye when adducted, action depends on direction of movement) Aeit: - Isolated palsy rare, usually idiopathic or trauma
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CN VI palsy
CFx: - Failure of lateral movement, maximum of looking to the affected side Motor function - lateral rectus Aeit: BILATERAL: trauma, Wernicke's encephalopathy (opthalmoplegia, confusion and ataxia), mononeuritis multiplex, raised ICP
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Causes CN V palsy
CENTRAL (pons, medulla or upper cervical cord) - Vascular lesion - Tumour - Syringobulbia (fluid filled cavities) PERIPHERAL (middle fossa) - Aneurysm - Tumour - Chronic meningitis TRIGEMINAL GANGLION (petrous temporal bone): - Trigeminal neuroma - Meningioma - Fracture of the middle fossa ``` CAVERNOUS SINUS: [Involve only opthalmic (V1) division and typically assoc with CN IV and VI palsy] - Aneurysm - Tumour - Thrombosis ``` If only one division of CN V affected then it must be a post ganglionic lesion. Dissociated sensory loss suggests a brainstem or upper cord lesion.
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Causes CN VII palsy
UMN (supranuclear; forehead sparring): - Vascular - Tumours LMN (forehead not spared, when pt tries to shut eye get upward movement of eyeball and incomplete closure): - Pontine causes (often assoc with CN V and VI lesions): vascular lesions, tumours, syrringobulbia, MS - Posterior fossa: acoustic neuroma, meningioma, chronic meningitis - Petrous temporal bone: bell's palsy, fracture, ramsay hunt syndrome (herpes zoster), ottitis media, parotid gland tumour or sarcoidosis
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Causes CN IX and X palsy
CENTRAL: - Vascular lesions (lateral medullary infarction due to vertebral or posterior inferior cerebellar artery disease) - Tumours - Syringobulbia - MND PERIPHERAL (posterior fossa): - Aneurysms at the base of skull - Tumours - Chronic meningitis - Guillian-Barre syndrome
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Combined unilateral III, IV, V, VI palsy
Unilateral III, IV, V, VI suggests carvenous sinus lesion.
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Unilateral V, VII and VIII palsy
Unilateral V, VII and VIII suggests a cerebellopontine angle lesion (usually tumour, acoustic neuroma)
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Unilateral IX, X and XI palsy
Unilateral IX, X, and XI suggests jugular foramen lesion
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Bilateral X, XI and XII palsy
Bilateral X, XI and XII - Bulbar palsy if LMN signs - Psuedobulbar palsy if UMN signs
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Pseudobulbar palsy: CFx
Pseudobulbar palsy = bilateral UMN lesions of CN IX, X and XII CFx - Increased gag reflex - Spastic tongue - Increased jaw jerk - Spastic dysathria (speech) - Bilateral limb UMN (long tract) signs - Labile emotions Causes: - Bilateral cerebrovascular disease (e.g. both internal capsules) - Multiple sclerosis - Motor neurone disease
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Psuedobulbar palsy: causes
Causes: - Bilateral cerebrovascular disease (e.g. both internal capsules) - Multiple sclerosis - Motor neurone disease
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Bulbar palsy: CFx
Bulbar palsy = bilateral LMN lesions of IX, X and XII CFx: - Absent gag relfex - Absent or normal jaw reflex - Nasal speech - Normal emotions Causes: - MND - Guillain-Barre syndrome - Poliomyelitis - Brainstem infarction
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Bulbar palsy: causes
Causes: - MND - Guillain-Barre syndrome - Poliomyelitis - Brainstem infarction
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Horner's syndrome CFx
Due to interruption of the sympathetic innervation of the eye. CFx: - Partial ptosis (sympathetic fibres supply the smooth muscle of both eyelids) - Constricted pupil (miosis; due to unbalanced parasympathetic action) - Decreased sweating
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Horner's syndrome causes
1. Carcinoma of the apex of the lung (usually squamous cell carcinoma) 2. Neck - Malignancy e.g. thyroid - Trauma or surgery 3. Lower trunnk brachial plexus lesions - Trauma - Tumour 4. Carotid artery lesion - Carotid aneursym or dissection - Pericarotid tumours - Cluster headache 5. Brainstem lesion - Vascular disease (e.g. lateral medullary syndrome; see nystagmus to the side of the lesion, ipsilateral pain and temperature loss (CN V), CV IX and X lesions, ipsilateral cerebellar signs and contralateral pain and temperature loss over the trunk and limbs)
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Horner's syndrome CFx
EYES: - Partial ptosis - Miosis - Check for drecrease in sweating FACE: - Check for signs of lateral medullary syndrome -- Nystagmus to side of the lesion -- Ipsilateral pain and temperature loss (CN V) -- CN IX and X lesions (uvula deviation [to side of lesion'] and gag reflex, cough) -- ipsilateral cerebellar signs -- contralateral pain and temp loss over trunk and limbs VOICE - Hoarseness may be from a recurrent laryngeal nerve palsy HANDS - clubbing - weakness of finger abduction (if present do resp exam concentrating on the apices for lung carcinoma) NECK - lymphadenopathy - Thyroid carcinoma - Carotid aneursym or bruit
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Muscle power grading
0 Complete paralysis 1 Flicker of contraction 2 Movement possible when gravity excluded 3 Movement possible against gravity but not if any further resistance is added 4- Slight movement against resistance 4 Moderate movement against resistance 4+ Submaximal movement against resistance 5 Normal power
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Radial nerve
Radial nerve - C5-8 Motor (extends UL!) - Triceps - Brachioradialis - Extensor muscle of hand Sensation - Anatomical snuff box Cfx palsy - Wrist drop - Test for triceps involvement (if affected lesion is above the upper third of the arm)
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Median nerve
Median nerve C6-T1 ``` Motor Wrist flexion Finger flexors Lumbricals (leyton Hewitt sign) Thumb abduction - front muscles of the forearm except flexor carpi ulnaris and ulnar half of flexor digitorum profundus - LOAF of hand -- Lateral two lumbricals -- Opponens pollicus -- Abductor pollicis brevis -- Flexor pollicis brevis ``` Sensation - Palmar aspect of thumb, index and lateral half of ring fingers Lesions: - At wrist (carpal tunnel) - - pen touch test to assess for weakness of abductor pollicis brevis (get patient to abduct thumb towards pen held by examiner) - - Palm sensation spared - At cubital fossa - - Look for loss of flexor digitorum sublimis; get patient to clasp hands together and look for index finger sticking out
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Median nerve
Median nerve C6-T1 ``` Motor Wrist flexion Finger flexors Lumbricals (leyton Hewitt sign) Thumb abduction - front muscles of the forearm except flexor carpi ulnaris and ulnar half of flexor digitorum profundus - LOAF of hand -- Lateral two lumbricals -- Opponens pollicus -- Abductor pollicis brevis -- Flexor pollicis brevis ``` Sensation - Palmar aspect of thumb, index and lateral half of ring fingers Lesions: - At wrist (carpal tunnel) - - pen touch test to assess for weakness of abductor pollicis brevis (get patient to abduct thumb towards pen held by examiner) - - Palm sensation spared - At cubital fossa - - Look for loss of flexor digitorum sublimis; get patient to clasp hands together and look for index finger sticking out
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Ulnar nerve
Ulnar nerve C8-T1 Motor Finger abduction Finger addiction Digit 4 and 5 flexion - Supplies small muscles of the hand except LOAF - Flexor carpi ulnaris - Ulnar part of flexor digitorum profundis Sensation - Palmar and dorsal aspects of the little finger and medial half of ring finger Note ulnar nerve paradox where distal lesions cause greater deformity.
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Causes of a claw hand
- Ulnar and median nerve lesion (ulnar nerve palsy alone causes a claw like hand) - Brachial plexus lesion (C8-T1) - Other neurological disease, e.g. syringomyelia, polio - Ischaemic contracture (later and severe) - Rheumatoid arthritis (advanced, untreated disease)
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Causes of small muscle wasting
``` SPINAL CORD LESION - Syringomyelia - Cervical spondylosis with compression of the C9 segment - Tumour - Trauma ANTERIOR HORN CELL DISEASE - Motor neurone disease - Poliomyelitis - Spinal muscular atrophies ROOT LESION - C8 compression LOWER TRUNK BRACHIAL PLEXUS LESION - Thoracic outlet syndromes - Trauma, radiation, infiltration, inflammation PERIPHERAL NERVE LESIONS - Median and ulnar nerve lesions - Peripheral motor neuropathy MYOPATHY - Dystrophia myotonica (forearms more affected than hands) - Distal myopathy TROPHIC DISORDERS - Athropathies - Ischaemia, inc vasculitis - Shoulder hand syndrome ```
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Brachial plexus lesions
COMPLETE LESION (rare): - LMN signs affect the whole arm - Sensory loss (whole limb) - Horner's syndrome - Often painful UPPER LESION (Erb) C5-6 - Loss of shoulder movement and elbow flexion; hand held in waiter's tip position - Sensory loss over the lateral aspect of the arm and forearm LOWER LESION (Klumpke) C8-T1 - True claw hand with paralysis of all the intrinsic muscles - Sensory loss along the ulnar side of the hand and forearm - Horner's syndrome Cervical rib syndrome - Weakness and wasting of the small muscles of the hand (claw hand) - C8 and T1 sensory loss - Unequal radial pulses and blood pressure - Subclavian bruits on arm manoeuvering - Palpable cervical rib
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Brachial plexus lesion causes
1. Inflammation, autoimmune (more common upper brachial plexus) 2. Radiotherapy (more often upper brachial plexus) 3. Cancer (more often lower; usually painful, weakness and sensory loss present) 4. Trauma
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Lateral cutaneous nerve of the thigh
Sensory - Lateral aspect of thigh No motor
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Femoral nerve
Femoral nerve L2, L3, L4 MOTOR: - Knee extension - Absent knee jerk SENSORY: - inner aspect of thigh and leg
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Sciatic nerve
Sciatic nerve L4, L5, S1, S2 MOTOR: - All muscles below the knee and hamstrings SENSATION: - posterior thigh - lateral and posterior calf CFx palsy: - Foot drop - Knee jerk intact but ankle jerk and plantar responses absent
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Common pernoeal nerve
Common peroneal L4, L5, S1 MOTOR (branch of sciatic) - Anterior and lateral compartment muscles of one leg CFx palsy: - Foot drop - Intact reflexes - Inversion preserved - Minimal sensory loss over the lateral aspect of the dorsum of the foot NOTE: L5 palsy has weakness of knee flexion and loss of foot inversion as well as sensory loss in L5 distribution.
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Hemiplegic gait
Hemiplegic gait = foot is plantar flexed and the leg is swung in a lateral arc
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Spastic paraparesis gait
Spastic paraparesis = scissors gait
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Parkinson's gait
Parkinson's gait = hesistation in starting - Shuffling - Freezing - Festination - Propulsion - Retropulsion
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Cerebellar gait
Cerebellar = a wide based or reeling on a narrow base. The patient staggers towards the affected side if the lesion is unilateral.
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High stepping gait
Foot drop = high stepping gait
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Waddling gait
Proximal myopathy = waddling gait
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Feet glued to floor gait
Prefrontal lobe (apraxic) = feet appear glued to floor when erect, but move more easily when the patient is supine
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Heel and toe walking
Walk on toes = not possible if S1 lesion Walk on heels = not possible if L4 of L5 lesion causing foot drop
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UMN CFx
UMN lesion = lesion at level above anterior horn cell (e.g. cerebral cortex, internal capsule, brainstem, spinal cord) CFx: - Upper limb drift - Hyperrelfexia - Extensor (upgoing) plantar response - Pyramidal weakness (UL flexors strong, LL extensors strong) - No muscle wasting - Increased tone / spasticity (due to destruction of the corticoreticulospinal tract) Causes: VASCULAR: thrombosis, embolism, haemorrhage. Thrombosis of internal carotid artery (may hear bruit). COMPRESSIVE/INFILTRATIVE: tumours, false localising signs from raised ICP (typically see 6th nerve palsy due to 6th nerves long path). DEMYELINATING DISEASE: MS INFECTION: HIV
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Stroke syndrome patterns
Anterior cerebral artery = leg>arm involvement Penetrating branches of MCA = lacunar infarct Internal carotid / MCA = aphasia or non-dominant hemisphere dysfunction, hemiplegia contralaterally to lesion, homonymous hemianopia. Posterior cerebral artery = homonymous hemianopia, no hemiplegia Basilar artery = quadriplegia Penetrating branches of basilar artery to brainstem = brainstem infarct PICA (posterior inferior cerebellar artery) = laterally medullary syndrome (ipsilateral facial sensation changes, contralateral body sensory deficits)
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LMN CFx
- Weakness (may be more pronounced distally>proximally, all muscles equally involved) - Muscle wasting - Normal tone - Reduced reflexes with normal or absent plantars - Fasciculations may be present LMN lesion = interruption of reflex arc, thus lesion of the spinal motor neurones, motor root or peripheral nerve
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MND
- Unknown pathophys but pathology in anterior horn cell,s motor nuclei of the medulla and descending tracts CFx: - Combination of UMN and LMN signs - Fasiculations almost always present - Muscle stretch reflexes usually present until late in disease - No objective sensory changes
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Peripheral neuropathy CFx
CFx: - Distal part of nerves involved first due to distance from the cell bodies - Can be loss of sensation or motor function - Typically symmetrical glove and stocking loss to all modalities - Peripheral weakness may be present if motor nerve involvement - If motor without sensory involvement reflexes may be reduced but should not be absent
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Mononeuritis multiplex causes
MM = separate involvement of more than one peripheral or cranial nerves by a single disease ACUTE: - Polyarteritis nodosa - Diabetes - CTD: rheumatoid arthritis, SLE CHRONIC: - Multiple compressive neuropathies - Sarcoidosis - Acromegally - HIV
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Spinal cord lesion CFx
Spinal cord lesion causes LMN AT THE LEVEL of the lesion and UMN BELOW LEVEL of lesion. Examples: - C5: LMN weakness and wasting of rhomboids, deltoids, biceps and brachioradialism. UMN affecting the rest of UL and LL. - C8: LMN weakness and wasting of instrinsic muscles of the hand. UMN signs in LL. - T10/T11: loss of lower abdominal reflexes and upward displacement of umbilicus. UMN in LL. - L5-S1: LMN weakness of knee flexion and hip extension (S1) and abduction (L5) plus calf and foot muscles. Knee jerks present, no ankle jerks or plantar responses. Anal reflex present. - S3-S4: no anal reflex, saddle sensory loss, normal lower limbs.
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Spinal cord brown sequard syndrome CFx
Brown sequard = half cord (coronally) affected (partial unilateral cord lesion) CFx: - Loss of pain and temperature sensation on the opposite side to the lesion - Loss of vibration and proprioception on the same side of the lesions - UMN BELOW the hemisection on the same side as the lesion, LMN AT the level of the hemisection on the same side Causes: - MS - Angioma - Trauma - Myelitis - Post radiation myelopathy
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Spinal cord syndromes: subacute combined degeneration of the cord (Vit B12 deficiency)
CFx: - Posterior column loss symmetrically-> ataxic gait - UMN signs in LL symmetrically - Absent ankle reflex but knee reflex may be exaggerated or absent - Peripheral sensory neuropathy - Optic atrophy - Dementia
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Central cord CFx (e.g. syringomyelia)
Syringomyelia = central cavity in spinal cord CFx: - Loss of pain and temp over neck, shoulders and arms (like a cape) - Amytrophy (atrophy and areflexia) of the arms - UMN signs in lower limb
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Causes of proximal muscle weakness
``` # MYOPATHY - Polymyositis / dermatomyositis - Muscular dystrophy (Becker, Duchenne, facioscapulohumeral musclar dystrophy) - Endocrine: cushing's, hypothyroidism, acromegally - Drugs (steroids, statins) # NEUROMUSCULAR JUNCTION DISEASE - myasthenia gravis - Lambert-Eaton syndrome # NEUROGENIC: - MND - Kugelberg-Welander disease - CIPD (motor predominant) ``` Myopathy on EMG = early recruitment Kugelberg-Welander disease = proximal muscle wasting and fasiculation due to anterior horn cell disease. Autosomal recessive.
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Causes of myopathy
- HEREDITARY MUSCULAR DYSTROPHY (Becker, Duchenne, facioscapulohumeral musclar dystrophy) - CONGENITAL MYOPATHIES - ACQUIRED MYOPATHIES (PACE) - - Polymyositis or dermatomyositis - - Alcohol, AIDS (HIV infection) - - Carcinoma - - Endocrine, e.g. hyperthyroidism, hypothyroidism, Cushing's syndrome, acromegaly, hypopituitarism - Periodic paralysis (hyperkalaemic, hypokalaemic or normokalaemic) - - Osteomalacia - - Drugs (clofibrate, chloroquine, steroids, zidovudine) - - Sarcoidosis
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Causes of muscular dystrophy
DUCHENNE'S (psuedohypertrophic) - Affects only males (sex-linked recessive) - Calves and deltoids: hypertrophied early, weak later - Proximal muscle weakness: early - Dilated cardiomyopathy # BECKER - Affects only males (sex-linked recessive) - Similar features to Duchenne's but less heart disease, a later onset and less rapid progression # LIMB GIRDLE - Males or females (autosomal recessive), onset in the third decade - Shoulder or pelvic girdle affected - Face and heart usually spared # FACIOSCAPULOHUMERAL - Males or females (AD) - Facial or pectoral weakness with hypertrophy of deltoids # Dystrophia myotonica (AD) - AD - Frontal baldness - Expressionless triangular facies - Atrophy of the temporalis muscle and partial ptosis - Difficulty releasing hands post contraction - Cataracts - Atrophy of sternomastoid - Cardiac failure - Proximal muscle wasting and weakness
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Dystrophica myotonia CFx
FACE: frontal bossing, expressionless triangular facies, atrophy of the temporalis muscle EYES: partial ptosis, cataracts / lens disease NECK: atrophy of sternomastoid, weak neck flexion with normal extension UPPER LIMBS: shake hands and test for percussion myotonia (tapping over thenar eminence causes contraction and then slow relaxation of abductor pollicus brevis), arm wasting, UL weakness (forearms affected first), slow to release hand grip. No sensory changes CHEST: gynaecomastica, cardiomyopathy TESTES: atrophy LOWER LIMB: tibial nerves affected first ASK: test urine for sugar as assoc with T2DM
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Hereditary motor sensory neuropathy CFx
1. Pes cavus (short arched feet) 2. Distal muscle atrophy due to peripheral nerve degeneration - This dose not usually extend above the elbows or above the middle third of thigh 3. Absent relfexes 4. Slight or sensory loss in the limbs 5. Thickened nerves 6. Optic atrophy, Argyll Robertson pupils
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Myasthenia gravis CFx
- Muscle power decreases with use - Little muscle wasting and no sensory change TEST: - Oculomotor muscles by getting patient to sustain upgaze for one minute, look for progressive ptosis - Peek sign: test for orbicularis oculi weakness, ask pt to close eyes, if positive within 30 seconds the lid margin will begin to separate showing the sclera. - UL proximal girdle, ask pt to hold arms above the head and repeatedly press the abducted arms down until they weaken. Power will decrease with repeated muscle contraction. Look for thymectomy scar
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Cerebellar disease CFx
- Occur on the same side of the lesion as most cerebellar fibres cross twice in the brainstem (on entry and exit to the cerebellum) CFx - Jerky horizontal nystagmus - Explosive, jerky or loud speech with irregular separation of syllables (get pt to say Bristish Constitution) - UL drift due to hypotonia of the agonist muscles (hypotonia due to loss of a facilitatory influence on the spinal motor neurones) - Intention tremor (increases as target is approached, due to loss of cerebellar connections in the brainstem) - Dysdiadochokinesis - Truncal ataxia - Gait-> patient will stagger towards affected side if there is a unilateral cerebellar hemisphere lesion
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Causes of cerebellar disease
``` ROSTRAL VERMIS LESION (only LL affected) - Alcohol UNILATERAL 1. Space occupying lesion (tumour, abscess, granuloma) 2. Ischaemia (vertebrobasilar disease) 3. Multiple sclerosis 4. Trauma BILATERAL 1. Drugs- e.g. phenytoin 2. Alcohol (possibly due to thiamine connection) 3. Friedreich's ataxia 4. Spinocerebellar atrophy 5. Paraneoplastic syndrome 6. Multiple sclerosis 7. Trauma 8. Arnold-Chiari malformation (lower CN palsy, cerebellar signs in limbs, UMN signs in legs) 9. Large space occupying lesion, cerebellar disease 10. Hypothyroidism MIDLINE 1. Paraneoplastic syndrome 2. Midline tumour ```
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Fredreich's ataxia CFx
Autosomal recessive 1. Bilateral cerebellar signs including nystagmus 2. Pes cavus, cocking of the toes, kyphoscoliosis 3. UMN in the limbs with absent reflexes 4. Peripheral neuropathy 5. Posterior column loss in the limbs 6. Cardiomyopathy 7. Diabetes mellitus 8. Optic neuropathy (uncommon) 9. Normal mentation
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Causes of spastic and ataxic paraparesis (UMN + cerebellar signs)
- MS - Spinocerebellar degeneration - Arnold chiari malformation (lower CN palsy, cerebellar signs in limbs, UMN signs in legs) - Syringomyelia - Ischaemia - Meningioma / tumour
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Parkinson's disease CFx
Extrapyramidal disease with degeneration of the substantia nigria and its pathways leading to dopamine deficiency and an excess of cholinergic transmission CFx: GENERAL: - Mask like facies with few spontaneous movements GAIT (ask patient to rise from chair, walk, turn, quickly stop and start): - Shuffling gait (small steps with lack of arm swing.), difficulty initiating walking and difficulty stopping. - Bradykinesia (decrease in the speed and amplitude of complex movements); can test finger tapping and twiddling (rotating hands in front of the body) TREMOR: - Asymmetrical resting tremor; characteristic movement is pill rolling - Tremor decreases with finger-nose testing TONE: - Increased / cogwheel ridigity FACE: - Glabellar tap (continues to blink when forehead tapped) SPEECH: - Soft and monotonous EYES: - Weakness of upward gaze (if marked rigidity and paralysis of gaze consider PSP) BP: - Orthostatic hypotension WRITING: - Micrographia
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Causes of tremor
1. Parkinsonian (resting tremor) 2. Postural/action tremor (present throughout a movement) - Idiopathic - Anxiety - Drugs - Familial - Thyrotoxic 3. Essential / familial 4. Intention tremor (cerebellar disease, increases towards target) 5. Midbrain tremor (abduction-adduction movements of upper limbs with flexion-extension wrists (usually associated with intention tremor)
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Relative afferent pupillary defect
Affected side dilates when light shone in (on repeated testing) ``` Causes: Pathology after optic chiasm - retinal artery occlusion - large retinal attachment - retinal vein occlusion - optic nerve (optic neuritis, MS, compression) ```
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Nerve conduction studies peripheral neuropathy
``` Demelinating E.g. diabetes, paraprotein, CMT, CIDP - decreased velocity - increased distal latency - normal amplitude ``` Axonal E.g. diabetes mellitus, toxins, metabolic, paraneoplastic - decreased amplitude - velocity normal >70%
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Foot drop DDx cause
Peroneal nerve (L4, L5, S1, S2) - Decreased eversion - Normal power at knee - Decreased sensation at dorsum of foot - Ankle reflex intact Sciatic nerve (L4-S3) - Flaccid foot, reduced eversion and inversion - Reduced flexion at knee - Decreased sensation posterior thigh and below knee - Intact knee jerk - Absent ankle jerk L4/5 nerve root - Reduced inversion and eversion - Normal knee power - Dermatomal sensory loss - Ankle jerk intact
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Complex opthalmaplegia causes
- Myasthenia gravis - Mitochondrial disorders - Grave's disease - Multiple CN affected (mononeuritis multiplex, MS)
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Causes of distal muscle weakness
``` # Myopathic - Inclusion body myositis - Muscular dystrophies (FSH) # NMJ - Myasthenia gravis # Neuropathic (peripheral neuropathy with motor predominance) - Hereditary sensory and motor neuropathy - Spinal muscular atrophy (UMN) - CIDP (LMN) - Multifocal motor neuropathy (LMN) - Diabetes ```
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Causes of ptosis
UNILATERAL - Horner's syndrome - CNIII palsy - Myasthenia gravis BILATERAL - Myasthenia gravis - Senile - Eyelid oedema (infection, allergy) - Muscular dystrophy, e.g. oculopharyngeal MD
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Causes of a pes cavus
- Freidreich's ataxia - Idiopathic - Hereditary motor and sensory neuropathy - Neuropathies in childhood
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Causes of a diffuse goitre
- Thyroiditis (hashimoto's, subacute) - Post partum or pregnancy - Idiopathic - Iodine deficiency - Grave's disease - Lithium - Hormone synthesis errors
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Causes of optic neuritis
- MS - Toxins (amiodarone, ethambutol) - Metabolic - Autoimmune disease - Malignancy - Infective (syphillis, CMV, VZV)
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Lateral medullary syndrome CFx
- Nystagmus to the side of the lesion - Ipsilateral CN V, X and sometimes XI lesion - Ipsilateral cerebellar signs - Contralateral pain and temp loss over trunk Causes of lateral medullary syndrome - Ischaemia to lateral medulla secondary to vertebral artery or posterior inferior cerebellar artery
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Glomerulonephritis likely to reoccur post transplant
- Focal glomerulosclerosis - Membranoproliferative GN - Anti-GBM - IgA nephropathy
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Causes of autoimmune haemolytic anaemia
``` Warm (IgG and C3 +ve) - autoimmune lymphoma (NHL) - CTD - drugs - idiopathic Cold (C3 +ve) - glandular fever - mycoplasma infection - hepatitis C - If chronic: lymphoma, idiopathic ```
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Causes of a peripheral neuropathy
- Diabetes - Alcohol - Nutritional (B12, B6, folate) - Drugs (vincristine, cisplatinum, amiodarone, bortezimib, phenytoin, izoniazid) - AIDP / CIPD - Paraneoplastic syndrome - Amyloid, sarcoidosis - Hypothyroidism - Porphyria - Renal - Congenital
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Causes of a painful peripheral neuropathy
DAV CHAP - Diabetes - Alcohol - B12 def - Carcinoma - Arsenic - Porphyria
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X-ray changes in RA
- Soft tissue swelling - Juxta articular osteopenia - Subluxation and ulnar deviation of MCP joints - Radial deviation at the wrist - Marginal erosions - joint space narrowing
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X-ray changes OA
- Subchondral cysts - Subchondral sclerosis - Joint space narrowing - Osteophytosis - may see erosions
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X-ray changes psoriatic arthritis
- Pencil in cup deformity (marginal erosions + adjacent bony proliferation) - Small joint ankylosis (joint immobility / consolidation) - Osteolysis of phalangeal and metacarpal bone - Telescoping of digits and periostitis - Proliferative new bone at sites of enthesitis - Joint destruction
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Findings in foot RA
- Hindfoot eversion - Plantar subluxation at the metatarsal heads - Forefoot widening - Hallux valgus - Lateral deviation and dorsal subluxation of the toes
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Cholesterol targets
- Total cholesterol < 4 - LDL <1.8 - HDL >1 - Triglycerides < 2 If low risk - Total cholesterol < 5.5 - LDL < 4
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Significant reforming polyarthropathy
- RA - Psoriatic arthritis - SLE (jacoud arthopathy) - MCTD
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Causes of LVF
1. Volume overload (AR, MR, PDA) 2. Pressure overload (HT, AS) 3. Myocardial disease (IHD, dilated cardiomyopathy)
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Causes of RHF
1. Volume overload (ASD, TR) 2. Pressure overload (PS, pulmonary HT) 3. Myocardial disease (cardiomyopathy secondary LHF, right ventricular infarction)
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Causes of RHF
1. Volume overload (ASD, TR) 2. Pressure overload (PS, pulmonary HT) 3. Myocardial disease (cardiomyopathy secondary LHF, right ventricular infarction)
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Causes of goitre
``` Hashimoto thyroiditis - Graves disease - Familial or sporadic multinodular goitre Iodine deficiency Follicular adenoma Colloid nodule or cyst Thyroid cancer ```
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LVH voltage criteria
- Seven big squares V1 + V5 or V6
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Meld score for transplant
>15 benefit for transplant | Consider referral at 10-12
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Upper limb reflexes
Biceps C5 (musculocutaneous n) Brachioradialis C6 (radial n) Triceps C7 (radial n)
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Factors suggesting type 1 / latent autoimmune diabetes
- anti-GAD antibody positive (glutamine acid decarboxylase) - insulin antibodies - c peptide level (correlate to insulin level)
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Antibodies in myositis
- Anti-Jo-1(assoc anti-synthetase synd) | - Anti-Mi-2 (dermatomyositis)
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Antibodies in vasculitis
C-ANCA (anti-protinase 3) - granulomatosis with polyangitis P-ANCA (anti-MPO) - microscopic polyangitis - eosinophilic granulomatosis with polyangitis
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Tracheal deviation towards
- Pneumonectomy - Agenesis of lung - Pulmonary fibrosis - Lobar collapse
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Tracheal deviation away
- Pleural effusion | - Tension pneumothorax