paeds level 2 conditions (pack 2) Flashcards
(125 cards)
Primary headaches in children? 2 (which is most common)
Common secondary causes of headaches in children? 4
rare, but serious, secondary causes of headaches in children? (3 more acute in onset, 2 more insidious)
PRIMARY
- stress / tension
= migraine
migraine without aura is most common cause of primary headache in children
- aura is rare in children!
COMMON SECONDARY
- eye strain
- dental problems
- sinusitis
- analgesic headache (overuse: esp in teens)
nb headaches are rare in younger children!
RARE SECONDARY
ACUTE:
= meningitis (only get in older kids)
= trauma
- carbon monoxide posioning
INSIDIOUS
- space occupying lesion
- hypertension (esp overweight teenagers)
Features of a stress headache in children?
go through socrates
S = frontal, often bilateral
O
- gradual
- occurs during the day
- not present on waking
C = pressing / tightening
R = no radiation
A = no associated symptoms
T = timing relates to stress (school etc)
E
- not aggravated by routine physical activity
- stress exacerbates
S
- mild or moderate
- may inhibit but does not prohibit activity
no nausea or vomiting
may have photophobia OR photophobia but not both
Features of a migraine without aura in children?
go through socrates
what is the diagnostic criteria in children?
nb 80% of children with migraines don’t have an aura (so 20% do! - so always ask!)
S
- bilateral or unilateral
- frontal
O = variable
C = pulsating
R = no radiation
A
- nausea and/or vomiting
- photophobia + photophobia (may be inferred from behaviour)
T = lasts 4-72 hours
E
- aggravated by routine physical activity
- may be brought on by chocolate, cheese, food additives etc
S
- moderate to severe intensity
DIAGNOSTIC CRITERIA:
A)
>= 5 attacks fulfilling features B to D
B)
Headache attack lasting 4-72 hours
C)
Headache has at least two of the following four features:
- bilateral or unilateral (frontal/temporal) location
- pulsating quality
- moderate to severe intensity
- aggravated by routine physical activity
D)
At least one of the following accompanies headache:
- nausea and/or vomiting
- photophobia AND phonophobia (may be inferred from behaviour)
nb also often have a positive FHx for migraines!
nb don’t bother learning exact diagnostic criteria! - just be aware
Paediatric migraine without aura:
- acute management? 2
- options for prophylaxis? 2
ACUTE MANAGEMENT
- ibuprofen
- nasal triptans (if over 12)
nb nasal triptans are poorly tolerated by children (dt taste in back of mouth) but oral triptans aren’t licensed under age 18
nb side effects of triptans:
- tingling
- heat
- heaviness / pressure sensation
PROPHYLAXIS
- migraine diary to identify triggers
- no clear guidelines, use medications if severe
- in practice PIZOTIFEN and PROPRANOLOL are often used first line
(2nd line: valproate, topiramate + amitryptiline)
RED FLAGS FOR HEADACHES IN CHILDREN:
- features of headache? 5 (incl exacerbating features)
- associated symptoms? 6
- findings on exam? 4
- PMHx? 3
- what to consider doing if find these?
- acute onset of severe pain
- pain wakes child at night
- pain present on waking or worse in early morning
- pain worse on lying
- pain worse on coughing, sneeze, exercise
ASSOCIATED SYMPTOMS
- blurred vision
- vomiting
- fever (with worsening headache)
- non-blanching rash
- impaired consciousness
- developmental regression or personality change
nb neck stiffness and photophobia may indicate meningitis but, in kids the former could just indicate a viral infection, and the latter a migraine
SIGNS:
- HTN
- papilloedema
- increasing head circumference
- focal neuro signs
PMHx
- hx of head trauma (in last 3 months)
- hx of seizures
- bleeding disorder
consider head imaging if suggestive of raised ICP
- consider investigation (eg LP) + management of meningitis if suspect that
What should you always consider when a child presents with a head injury?
How do you rule this in/out?
other questions to ask about in head injury:
- symptoms to ask about? 7
- What PMHx to ask about? 1
- what examinations to do? 3
whether it could be a non-accidental injury (NAI)
by taking a thorough history from child + parents and making sure the story and mechanism matches with the symptoms + signs found on exam
- also any signs of a delay in presentation may also make you suspicious (if any delay, ask why!)
- mechanism of injury?
- any LOC? (if witnessed, how long?)
- any seizures? (if so, ask about epilepsy hx)
- any amnesia? (how long)
- abnormal drowsiness
- vomiting? (how many
discrete episodes) - any blood or fluid from ears or nose?
- ANY INJURIES TO ANYWHERE ELSE?
PMHx
- Any bleeding disorders
EXAMS
- full neuro exam
- opthalmascope to see funds (also check pupils)
- examine whole head for bruising, size, fontanelle etc
When to perform a CT head scan on a child presenting with a head injury:
- if have any of these risk factors, how fast should a CT scan be done?
- mechanism of injury?
- symptoms following the injury?
- GCS score?
- other findings on exam? (incl 2 just for age under 1 year)
- which of these are indications for immediate CT on their own and which need 2 or more? if latter, how long do they need to be observed for?
perform CT scan within an hour (and provisionally report within an hour of scan being done)
MECHANISM
= suspicion of non-accidental injury (NAI)
- dangerous mechanism of injury (see definition below)
dangerous mechanism:
- high-speed road traffic accident either as pedestrian, cyclist or vehicle occupant
- fall from a height of greater than 3 metres
- high-speed injury from a projectile or other object
SYMPTOMS
= post-traumatic seizure (with no PMHx of epilepsy)
- LOC lasting more than 5 mins (witnessed)
- abnormal drowsiness
- three or more discrete episodes of vomiting
- Amnesia (antegrade or retrograde) lasting more than 5 minutes (assessment of amnesia will not be possible in preverbal children and is unlikely to be possible in children aged under 5 years)
GCS
= GCS <14 on initial assessment in ED (or <15 for infants under 1)
= GCS <15 at 2 hours after the injury
OTHER FINDINGS ON EXAM
= suspected open or depressed skull fracture
= any signs of basal skull fracture (see other flashcard)
= tense fontanelle
= for children under 1, presence of bruise, swelling or laceration of >5cm on head
= focal neurological deficit
For risk factors with ‘=’, just need one to do an urgent CT, for risk factors with ‘-‘ need 2 or more, if only 1, observe in ED for 4 hours and if, during observation, you see:
- GCS <15
- further vomiting
- further episode of abnormal drowsiness
then order urgent CT
nb don’t learn this totally off by heart (if in ED etc, google nice head injury guidelines) but good to be aware - and ask these questions in a Hx
What are the signs of a possible basal skull fracture? 5
- blood from ears (haemotympanum)
- CSF from ears
- CSF from nose
- ‘panda’ eyes
- battle’s sign (bruising behind ear)
HYDROCEPHALUS:
- what are the two mechanisms / groups of causes? (give 3 causes of each)
- what congenital condition are they more common in?
OBSTRUCTIVE
- aka non-communicating)
= dt a structural pathology blocking the flow of CSF, dilatation of the ventricular system is seen superior to site of obstruction
OBSTRUCTIVE CAUSES:
- developmental abnormalities (eg aqueduct stenosis)
- tumours
- acute haemorrhage (eg SAH or intraventricular haemorrhage)
NON-OBSTRUCTIVE
- aka communicating
= due to an imbalance of CSF production and/or absorption
- either caused by an increased production of CSF or, more commonly, a failure of reabsorption at the arachnoid granulations
COMMUNICATING CAUSES - meningitis - post-haemorrhagic - choroid plexus tumour (very rare) ^top 2 are reduced absorption, last one is increased production
MORE COMMON if have SPINAL BIFIDA (or other neural tube defects)
HYDROCEPAHLUS:
- most common presenting complaint in infants?
- other possible symptom in infant?
- symptoms in older children? 2
- what two examinations to do?
- signs on examination? 6
- simple bedside investigations to do? 2 (and findings with these)
most commonly = CONCERNS ABOUT INCREASING HEAD CIRCUMFERENCE
- also developmental delay
OLDER CHILDREN (ie after sutures fused)
- headache
- vomiting (and other symptoms of raised ICP)
EXAMS
- full neuro exam
- developmental assessment
FINDINGS
- full anterior fontanelle (may also be large)
- prominent scalp veins
- downward turned eyes (sun setting sign)
- hyperreflexia
- spasticity
- poor head control (also other developmental delay)
INVESTIGATIONS
- measure (+ plot) head circumference (increasing rate of growth)
- fundoscopy with opthlmascope (papilloedema)
HYDROCEPHALUS:
- main DDx? how to differentiate?
- first line imaging?
- when to do an LP?
constitutionally big head
- commonest cause of a big head is having parents with big heads (ask about parental head size!)
- rate of head growth is important - if it’s following centile line then is fine
CT is first line
- although may need MRI later down the line
LUMBAR PUNCTURE
- can be useful as samples CSF, measure opening pressure and relieve symptoms BUT can only use if non-obstructive/communicating cause
- if obstructive then the difference in cranial and spinal pressures induced by CSF drainage may result in brain herniation!!
HYDROCEPHALUS:
- management if acute and severe?
- longer-term management?
An external ventricular drain (EVD) is used in acute, severe hydrocephalus and is typically inserted into the right lateral ventricle and drains into a bag at the bedside
A ventriculoperitoneal shunt (VPS) is a long-term CSF diversion technique that drains CSF from the ventricles to the peritoneum
- is tunnelled under skinned can be felt behind ear
In obstructive hydrocephalus, the treatment may involve surgically treating the obstructing pathology
NORMAL PRESSURE HYDROCEPHALUS:
- what is it?
- what age does it affect?
- classic triad of symptoms
- DDx? 2
Normal pressure hydrocephalus is a unique form of non-obstructive hydrocephalus characterised by large ventricles (ie on CT scan) but normal intracranial pressure
affects older individuals (gradual onset over age 40years)
- ie irrelevant to paeds but good to know!
SYMPTOMS:
1) dementia
2) disturbed gait
3) incontinence
DDx
- Parkinson’s (dt gait changes)
- alzheimers (dt cognitive dysfunction)
PLAGIOCEPHALY:
- what is it?
- what causes it?
- red flags to ask about? 3
Very common asymmetry of the skull with normal head circumference
- parents may also complain that they only have head to one side
Flat area on the back or one side of the head – caused by remaining supine for too long: baby sleeping position – or neglect? Lack of interaction?
- should be no associated symptoms
- does not affect the brain, is cosmetic
RED FLAGS
- any neuro symptoms
- any developmental delay
- any increase in rate of head circumference growth
PLAGIOCEPHALY:
- how to explain to parents?
- management? 3
REASSURE PARENTS
- very normal
- due to lying on back a lot
- the asymmetry will become less with growth and does not cause problems (though management can speed up the changes)
MANAGEMENT
- increase ‘tummy time’
- alter position of sleeping + position of toys (children will turn to what’s interesting!)
- alleviate pressure for head whilst in car seat
nb head-shaping helmets preserve head but have no medical benefit and are a pain! - other options are better and less invasive!
ask parents if child sleeps in same room as them, what side are they to the cot, babies will often favour this side, so switch it around a bit!
HAEMATURIA:
- two broad types?
- things which may mimic one of these types, but dipstick will be negative? 2
VISIBLE (aka macroscopic)
- ie can see with naked eye a dark urine
NON-VISIBLE (aka microscopic)
- urine looks normal but blood found on dipstick
if urine looks dark but no blood on dipstick think:
- food (beetroot, rhubarb)
- drugs (rifampicin, doxorubicin)
DDx of HAEMATURIA in children:
- transient causes? 3
- infection related? 2
- autoimmune/inflammatory causes? 3
- oncological causes? 1
- genetic causes? 4
- other causes? 4
TRANSIENT
- rigorous exercise
- fever
- foreign bodies / trauma
- menses (in girls)
INFECTION
- UTI
- Haemolytic ureic syndrome (HUS)
AUTOIMMUNE / INFLAM
- IgA nephropathy (aka Berger disease)
- Henoch-Schonlein purpura
- post-infective glomerulonephritis
- goodpasture syndrome (rare autoimmune attack of lung and kidney basement membranes)
ONCOLOGY
- Wilms tumour
GENETIC
- Sickle cell trait
- benign familial haematuria (aka thin-basement membrane nephropathy)
- Alport syndrome
- polycystic kidneys
OTHER
- medications
- coagulopathy (nb this could be genetic)
- kidney / urinary stones (rare in kids, unless familial)
- recurrent haematuria syndrome
BRIEF DESCRIPTION OF:
- IgA nephropathy (aka Berger disease)
- Henoch-Schonlein purpura
- post-infective glomerulonephritis
including how to differentiate between them
IgA NEPHROPATHY
- aka Berger disease
- commonest cause of chronic glomerulonephritis
= visible painless, intermittent haematuria, followed by on-going non- visible haematuria
- visible develops 1-2 days after URTI (or UTI or gastroenteritis)
- proteinuria is rare
- renal failure seen in a minority (at this stage can see IgA complexes if do renal biopsy)
- no effective treatment, although immunosuppressives can help some
HENOCH-SCHONLEIN PURPURA
- triad of: acute joint swelling, abdominal pain, purpuric rash
- 40% will also have renal involvement (from mild haematuria to AKI)
- is an IgA-mediated vasculitis
- HSP is self-limiting
POST-INFECTIVE GLOMERULONEPHRITIS
- occurs 1-3 weeks after streptococcal throat infection (or skin infection)
- often have proteinuria and low complement as well as haematuria (coca cola urine)
- thus can get oedema, HTN and oliguria as well
- creatinine is raised in 2/3rds of patients
- treatment is supportive, 80-90% have complete recovery
Both IgA nephropathy and post-infective glomerulonephritis have haematuria and follow an URTI, but IgA is 1-3 days after, instead of 1-3 weeks
- also post-infective often have proteinuria and low complement too
- also IgA have repeatedly with alternating visible and non-visible
although both IgA nephropathy and HSP are about IgA antibodies, HSP is a vasculitis (so you get the main triad of rash, joints, abdo pain) whereas IgA is more chronic and only affects kidneys
benign familial haematuria (aka thin-basement membrane nephropathy)
- short description?
- incl how to diagnose
- autosomal dominant
- get microscopic haematuria due to an abnormally thin glomerular basement membrane
- is benign
to make diagnosis
- evidence of haematuria in 3 generation
- with NO family history of renal failure, dialysis and/or transplantation
Alport syndrome:
- how inherited?
- triad of features?
X-linked disease which causes problems with collagen
1) glomerulonephritis
2) end-stage kidney disease
3) hearing loss
Hematuria is usually discovered in childhood in boys with Alport syndrome
Proteinuria develops later in childhood and 90% will reach end-stage renal failure by the age of 40
Hearing loss and ocular abnormalities become apparent by late childhood or early adolescence
Transient haematuria:
- investigations to consider?
- management (if sure no other cause)?
INVESTIGATION
- urine culture
- screening for bleeding disorders
- USS
^nb these may not always be done!
if history is negative for anything else and haematuria can be explained by exertion, fever or intercurrent illness then send away and REPEAT DIPSTICK in a few weeks to see if gone
nb if proteinuria as well as haematuria then take this more seriously
HAEMOLYTIC URAEMIC SYNDROME (HUS)
- age group normally in?
- by far the most common cause?
- what proceeded by?
- triad of features?
- symptoms that may present with? / to ask about? 4 (think about what symptoms that triad would give)
most common cause of AKI in children (followed by dehydration/sepsis)
- older infants + toddlers (ie under 5)
90% are secondary to toxin-producing e.coli 0157 infection (‘typical’)
nb can also rarely be secondary to pneumococcal infection, HIV, SLE, drugs and cancer
also can get primary HUS (‘atypical’) which is due to complement dysregulation
E COLI 0157
Initial symptoms typically include bloody diarrhoea (though not always bloody), fever, vomiting, and weakness. Kidney problems and low platelets then occur as the diarrhoea is improving.
1) haemolytic anaemia
2) thrombocytopenia
3) AKI
- pale + fatigue
- unexplained bleeding or bruising (eg purpuric rash)
- reduction in urine output
nb unlike most other causes of haematuria - these kids are normally clinically really quite ill!!!
- way to differentiate from HSP!
HAEMOLYTIC URAEMIC SYNDROME (HUS)
- investigations? (2 bedside, 2 bloods)
- management options? 3
- possible complications?
- urine dipstick
- stool culture
- FBC (anaemia, thrombocytopenia, fragmented blood film)
- U+Es (show AKI)
MANAGEMENT:
- mainly supportive (may need dialysis)
- plasma infusion + plasma exchange (if severe)
(- monoclonal antibodies if severe or CNS involvement)
80% recover completely
nb antibiotics not needed (even though caused by a bacteria initially but have no effect as symptoms are due to toxins which have already been produced)
POSSIBLE COMPLICATIONS
- chronic renal failure
- encephalopathy
Qs to ask child presenting with HAEMATURIA:
- associated urinary symptoms?
- other localised symptoms?
- other systemic features?
- general PMHx? 5
- recent PMHx? 1
- FHx? 4
ASSOCIATED SYMPTOMS:
- what is urine like: smelly? visible blood? frothy?
- pain on urination (UTI)
- nocturia (UTI)
- reduced urinary output (AKI dt HUS)
- abdo pain (HSP, kidney stones, UTI, Wilms tumour)
- diarrhoea (any blood? - HUS)
- vomiting (UTI)
- fever (UTI, HUS)
- fatigue (HUS)
- rash (HSP, HUS)
- joint pain (HSP)
PMHx
- ever had this before?
- started periods yet??? (if girl)
- sickle cell
- coagulopathies
- hearing problems (alport)
- any recent infection? (URTI or GI) how long ago?
(IgA is 1-3 days after, post- strep 1-3 weeks)
FHx
- haematuria or kidney problems (aport, thin basement membrane, polycystic kidneys, IgA nephropathy)
- kidney stones
- sickle cell
- bleeding disorders
ANY CONSANGUINITY (a lot are recessive so more common if related)
also keep suspicion for NAI as may all be due to trauma