Cardio and vasc Flashcards
(117 cards)
Clinical presentation of lymphedema
• Non-pitting edema • Feeling of heaviness or fullness, aching pain in limb • Impaired mobility • Skin changes in advanced cases ○ Discolotation ○ Hyperkeraosis ○ Verrucous hyperplasia ○ Papillomatosis ○ Deformity (elephantiasis)
Causes of lymphedema
Primary (congenital)
○ Milroy’s syndrome (congenital hereditary lymphedema)
Secondary ○ Infection § Filariasis (#1 cause worldwide, developing nations) § Post-op infection ○ Malignant infiltration § Axillary, groin, intrapelvic ○ Radiation/surgery (#1 cause in developed world) § Axillary, groin lymph node removal
Treatment lymphedema
Compression bandages and sleves
Gentle exercise
Massage and manual lymph drainage therapy
Skin care (moisturisers, topical/systemic treatment of fungal and bacterial infections)
Risk factors for venous thrombi embolism
THROMBOSIS ○ Trauma, Travel ○ Hypercoagulable state, history of previous VTE ○ Recreational drugs (IVDU) ○ Old age >60 ○ Malignancy ○ Birth control pill (OCP) ○ Obesity, obstetrics ○ Surgery, smoking ○ Immobilisation ○ Sickness (CHF, MI, nephrotic syndrome, vasculitis)
PERC
Old Age Tachycardia O2 saturation Prior history VTE Recent trauma/surgery Hemoptysis Exogenous oestrogen clinical signs of VTE
If all are negative, can rule out PE. If any one is positive, must move onto Wells.
Treatment for VTE
Anticoagulant: LMWH or Heparin if in renal failure; start Warfarin at same time. Stop LMWH/Hep when INR in therapeutic range for 2 days.
If haemodynamically unstable: thrombolyse
If anticoag CI: IVC filter of surgical thrombectomy
Long-term Warfarin or NOAC (3-6mo or lifelong if recurrent)
Causes of thrombophilia
Genetic
- overactivity of pro-coag factors (Factor V leiden and prothrombin mutation)
- Deficiency of anti-coag factors (anti-thrombin III, protein C and S)
Acquired
- Antiphospholipid syndrome (lupus anticoagulant, anticardiolipin, anti PLD antibody)
- Heparin induced thrombocytopenia (immune reaction against heparin)
- Sickle cell disease (prothrombotic state induced by hyper viscous blood)
Investigating DVT
- Well’s
- D-dimer: if neg and wells shows low pretest probability, exclude DVT
- USS of leg id D-dimer >0.5 and/or high pre-test probability
- Bloods
- FBE, coag studies +/- thrombophilia screen
Investigating PE
- PERC. If none are positive, can rule out PE. If 1 + are positive, calculate Well’s.
- Well’s criteria
- D-dimer: if negative, along with low- pretest probability, PE can be excluded. Otherwise do CTPA
- CTPA first line diagnostic
CXR, ECG, ABG, FBE, blood film, procoag screen
Classic PE ECG changes
Sinus tachycardia
T wave inversion leads V1-V4 +/- II, III, aVF
RV strain pattern
Non specific ST segment changes or T wave changes
S1Q3T3: S wave lead 1, Q wave and T wave inversion in lead III
RBBB (complete or incomplete)
R axis deviation
Classic presentation and investigation results for polymyalgia rheumatica
Old (>50) white female with morning stiffness and pain (worse in evening) of shoulder, arms, hip girdle and neck and began relatively suddenly. + general malaise, fatigue, weight loss. Family HX.
Raised ESR
What condition is assoc in polymyalgia rheumatic?
Temporal arteritis
Treatment polymyalgia rheumatica
Low dose corticosteroids
2 large vessel vasculitides and their treatment
Giant cell arteritis
Takayasu’s arteritis
Steroids
2 medium vessel vasculitides and their treatment
Polyarteritis nodosa
Kawasaki disease
Treatment is steroids + IV cyclophosphamide
an example of p-anca associated small vessel vasculitis + treatment
Churg-strauss syndrome.
• Granulomatous inflammation of vessels with hypereosinophilia and eosinophilic tissue infiltration
(often lung involvement)
Treatment is steroids + IV cyclophosphamide
an example of C-anca associated small vessel vasculitis + treatment
Wegener’s granulomatosis
- Granulomatous inflammation of vessels of resp tract, lungs and kidneys
Treatment is steroids + IV cyclophosphamide
An example of small vessel ANCA negative vasculitis +treatment
Henoch-Schonlein purpura
Treatment is steroids + IV cyclophosphamide
Mainstays of diagnosing vasculitis?
Angiography
Biopsy of affected vessel
Always do ANCA as well.
What does an isolated systolic HTN reflect generally?
High pulse pressure, seen in aged and stiff arteries
Difference between primary and secondary HTN, which is more common?
Primary HTN - no specific cause identified (95%)
Secondary HTN - specific cause identified (5%). Treatable but more severe than primary.
What are some of the causes of secondary hypertension?
Chronic Renal disease (Polycystic kidneys, diabetic glomerulosclerosis, glomerulonephritis)
Vascular - Renal artery stenosis and coarctation of aorta
Endocrine - Adrenal tumours secreting aldosterone, cortisol, ACTH, catecholamines (pheochromocytoma); cushing’s
Sleep apnoea
Meds (steroids, high oestrogen states such as OCP, HRT, pregnancy)
NOT atherosclerosis (except in case of renal artery stenosis)
In what patients with HTN do you investigate for a secondary cause?
Young patients (<30 years)
Resistant HTN
Presence of certain SX
Examples of renal causes of secondary HTN
Diabetic glomerulosclerosis
Polycystic kidneys
Glomerulonephritis