Paeds Flashcards
name the 3 shunts in foetal circulation
foramen ovale
ductus arteriosus
ductus venosus
name the 4 left to right shunts
atrial septal defect
ventricular septal defect
atrio-ventricular septal defect
patent ductus arteriosus
describe an ASD and what are the most common types
hole connecting the 2 atria = leads to a shunt of blood moving from LA to RA = high pressure blood to lungs = RH failure and overload + pulmonary hypertension
ostium secundum = 80%
ostium primum = partial ASD
what are the symptoms of ASD
often asymptomatic in childhood or:
- sob
- difficulty feeding
- poor weight gain
older:
- recurrent chest - infections/wheeze
- heart failure
what are the clinical signs of ASD
fixed and widely split 2nd heart sound = pulmonary/aortic valves close at different times
ejection systolic murmur at left sternal edge in pulmonary area
possible palpitations
what investigations for ASD
chest XR = cardiomegaly wiht dilatation of pulmonary arteries
ECG = partial RBBB + right axis deviation
(partial ASD = left axis deviation)
echoCG = mainstay = shows anatomy
what is the management of ASD
small/asym = W&W
surgical closure/catheter closure
Anticoags in adults to prevent stroke complication
what is the most common cause of meningitis in the UK
neisseria meningitidis
what are the sepsis 6
WITHIN AN HOUR
1. high flow oxygen
2. blood cultures
3. obtain IV access + give IV ceftriaxone 80mg/kg
4. fluid resus of 20ml/kg 0.9% saline
5. measure lactate
6. measure urine
what is klinefelter syndrome and what are its features
XXY chromosomes = primary hypogonadism
- azoospermia + gynaecomastia
- reduced secondary sexual characteristics
- osteoporosis
- tall
- reduced IQ
** increased risk breast cancer
what is hypogonadotrophic hypogonadism
deficiency of LH and FSH
what is hypergonadotrophic hypogonadism
lack of response to LH/FSH by the gonads
what is the cause of hypOgonadotrophic hypogonadism and name some causes
= abnormal hypothalamus/pituitary function
- damage
- GH deficiency
- hypothyroidism
- hyperprolactinaemia
- serious chronic conditions (IBD/CF)
- excessive diet/exercise
- Kallman syndrome
what is the cause of hypERgonadotrophic hypogonadism
= gonads no response = no negative feedback = increased LH/FSH
- previous gonad damage
- congenital absence of gonads
- kleinfelters syndrome XXY
- turners syndrome XO
what is kallman’s syndrome
hypogonadotrophic hypogonadism
anosmia (no smell)
visual problems
craniofacial abnormalities
what is turners syndrome
45 X0
- often results in miscarriage
- lymphoedema hands/feet in neonate
- short stature (height 20cm below normal)
- gonadal failure
- webbing of neck/low hairline/big ears/high arched palate
- CVS malformations
- horseshoe kidney
name the causes of short stature
familial
constitutional delay in growth and development
malnutrition
chronic disease (IMD/CHD)
endocrine (hypothyroidism)
genetics (downs/turners)
skeletal dysplasia
how is constitutional delay in growth and puberty (CDGP) diagnosed
history/examination
XR of hand/wrist
bone age compared to actual age
name the causes of overgrowth with impaired final height
precocious puberty
congenital adrenal hyperplasia
hyperthyroidism
mcAlbright
name the causes of overgrowth with increased final height
androgen deficiency/oestrogen resistance
GH excess
Kleinfelter sydrome XXY/Marfan syndrome
what is psycho social short stature
seen over 3
emotional rejection/abuse associated
50% show reversible GH deficiency
what growth centile constitutes overweight and obese
overweight = BMI above 85th percentile
obese = BMI above 95th percentile
describe puberty in girls
breast bud first sign
early = under 8
late = over 13
describe puberty in boys
testicular enlargement first sign in boys
early = under 9
late = over 14
what genetic syndromes can cause short stature
turners
noonans
downs
russel-silver
causes of microcephaly
= familial
= autosomal recessive condition
= congenital infection
= acquired after insult to brain e.g. meningitis
causes of macrocephaly
= familial
= raised intercranial pressure
= hydrocephalus
= chronic subdural heamatoma
= tumour
= neurofibromatosis
causes of precocious puberty in girls vs boys
girls = usually early onset of normal puberty
boys = organic cause
- intracranial tumours
- adrenal cause
what is congenital adrenal hyperplasia
autosomal recessive
classic CAH = salt wasting type in boys 7-10 days = adrenal crisis
ambiguous genitalia = cliteral hypertrophy and labial fusion
describe the important causes of vomiting in neonates (5)
malrotation/volvulus = bilious
hirshprungs disease/meconium ileus = bilious
NEC = bilious
infection
describe the important causes of vomiting in infants (7)
GORD = feed associated
food intolerance = change in stools
pyloric stenosis = projectile
intussusception = 3-36 months/colicky, red currant jelly stools
strangulating hernia/obstruction = bilious
raised ICP = early morning
infection
describe the important causes of vomiting in older children (9)
appendicitis
strangulated hernia
pancreatitis
DKA - diabetes symptoms
meds/alcohol/drugs
post-op pain
psychiatric/eating disorder
pregnancy
infection - pyrexia
describe the investigations for acute vomiting
U&E
stool virology
abdo XR
surgical consultation
exclude systemic disease
describe the investigations for chronic vomiting
FBC
ESR/CRP
U&E
LFT
H.pylori serology
urinalysis
upper GI endoscopy
abdo USS
small bowel enema
brain imaging
test feed = pyloric stenosis
describe the investigations for cyclic vomiting
same as chronic +:
amylase
lipase
glucose
ammonia
what presentation is typical of pyloric stenosis
projectile vomiting at 2-7 weeks of age
what does bile stained vomiting suggest
intestinal obstruction
intessuseption
malrotation
strangulated inguinal hernia
what are the complications of vomiting
K deficiency
alkalosis
Na depletion
nutritional deficiency
FTT
anaemia
malloey-weiss tear
tear of small arteries
dental erosions and caries
oesophageal stricture/barrets oesoph
describe GORD in children
normal <12 months due to lower oesophageal sphincter immaturity
increased risk in neuromuscular kids (cerebral palsy)
effortless regurgitation
usually self-resolving
what is the best diagnostic test for GORD
24hr oesophageal pH monitoring
describe the management for GORD
upright position
feed thickeners
medication = antacid/H2 blocker/PPI
fundoplication if serious (rare)
what are the most common food allergens
cows milk
eggs
peanuts
wheat
soya
fish
shellfish
tree nuts
what are the clinical features of food allergy/intolerance
diarrhoea +/- bloody/mucus
vomiting
abdo pain
FTT
eczema
urticaria
red rash, particularly around mouth
asthma sympts/anaphylaxis if severe
what is the difference between a food allergy and an intolerance
food allergy = immunological response to food
intolerance = adverse reaction mediated by NON-immunological response = more common
describe cow’s milk protein allergy
most common allergy in infancy
Sx depend on site of inflammation:
upper GI = vomiting, pain
small intestine = diarrhoea, pain, FTT
large intestine = diarrhoea, acute colitis blood/mucus
what is the management of CMPA
limit cows milk protein intake *for mother if breastfeeding
give formula if bottle fed
dont give soya milk
after 6-12months consider cows milk challenge
what is toddler diarrhoea
commonest cause of loose stool in preschool children
undigested veg in stool common
children are well and thriving
no treatment
what is encoporesis
involuntary faecal soiling or incontinence
= emotional disorder
= more common in boys
= can be secondary to constipation
what pattern indicates constipation
less than 3 stools per week
hard, large stool
what is hirsprungs disease
absence of meyenteric plexus of rectum and colon
usually presents in newborn as intestinal obstruction + delay in passing meconium w/n 24hr
diagnose with suction rectal biopsy
management is surgical
describe the red flags for constipation
no meconium w/n 48hrs = hirsprung/CF
neurological signs
vomiting = obstruction/hirscprungs
ribbon stool = anal stenosis
abnormal anus
abnormal lower back/buttocks
FTT
acute severe abdo distention/pain/bloating
what is the most common cause of a UTI
E.coli
what would pseudomonas on a urine microscopy result suggest
structural abnormality
what is foaming urine indicative of
heavy protein loss in urine
name the acyanotic congenital heart diseases
left to right shunts:
- atrial septal defect
- ventricular septal defect
- atrioventricular septal defect
- patent ductus arteriosus
Outflow obstruction:
- coarctation of aorta
- aortic stenosis
- pulmonary stenosis
name the cyanotic congenital heart diseases
transposition of the great arteries
tetralogy of fallot
tricuspid atresia
describe the diagnostic criteria for anorexia nervosa
- deliberately keeping weight below 85% expected = eating/exercise
- dread of getting fat
- endocrine effects = delayed menarche/menstruation stops
describe the epidemiology of anorexia nervosa
1 in 250 female
1 in 2000 males
mean age of onset 16-17
describe the aetiology of anorexia nervosa
social pressure
perfectionist character traits
low self esteem
reversing/halting effects of puberty
family attitudes
some genetic links
depression/anxiety
occupation (ballet)
past or present events
describe the screening tool for eating problems
SCOFF
do you make yourself SICK because uncomfortably full
do you worry youve lost CONTROL over eating
have you lost more than ONE stone in 3 months
do you believe youre FAT when others say youre thin
does FOOD dominate your life
describe the clinical signs of anorexia nervosa
dry skin
lanugo hair
orange skin/palms
cold hands/feet
bradycardia
oedema
postural hypotension
weak proximal muscles
what is the mneumonic for appendicitis
MAGNET
Migration of pain to RIF
Anorexia
Guarding
Nausea
Elevated temp
Tenderness in RIF
what are the 2 most common causes of acute abdominal pain in children
non-specific pain
appendicitis
how does malrotation typically present
within first few days of life (but can at any stage of life)
obstruction
green bilious vomiting
blood in vomit = ischaemic bowel
abdominal pain
what are the investigations and management for malrotation
urgent upper GI contrast study = barium meal
treatment is urgent surgical correction (Ladd’s procedure)
what is indicated with bilious or bloody vomiting in children
upper GI contrast study is needed
describe the presentation of intussuseption
2 months - 2 y/o
paroxysmal/severe colicky pain
pallor during pain episodes
sausage shaped mass on examination
redcurrant jelly stool - later presentation
abdominal distension and shock
what is the most common cause of intestinal obstruction in infants after neonatal period
intussuseption - ileocaecal most common
what route for fluids if iv access cant be abtained
interosseous (into femur)
what antibiotic can you not give to neonates and why
ceftriaxone = causes jaundice
what causes purpura
skin microvessel thrombosis leading to heamorrhagic necrosis
peripherals effected due to reduced perfusion to distal tissue in shock
what is the 1st line prophylaxis for meningitis
ciprofloxacin
rifampicin also acceptable
describe the contraindications/complications for rifampicin
effect oral contraceptives
cause jaundice
person on anticoagulants
person on seizure medication
what types of fluids can be used for maintenance in children
0.45% sodium chloride + 5% dextrose
0.9% sodium chloride + dextrose
what is the rate for maintenance fluids in children
100ml/kg for first 10kg
50ml/kg for next 10kg
20mls/kg for the rest
what fluid maintenance is given to babies on day 0
10% dextrose only
when is a fluid bolus given
hypoglycaemia - 10% dextrose 2ml/kg STAT
hypovolaemia (shock) - 0.9% saline (even in neonate) 20mls/kg STAT
how is the deficit calculated for dehydration fluids
% dehydrated x 10 x weight in kg
advantages of breast feeding
macronutrients for baby
free antibodies for infection
free
maternal bonding
reduce NEC risk in preterm
reduce risk of post menopausal breast cancers
disadvantages of breast feeding
unknown intake
mother has to do all
breast milk jaundice
transmission of drugs/infections
insufficient vit D/K in breastmilk
why is important to refeed slowly in anorexia
refeeding syndrome = body take up glucose and excrete sodium/potassium
refeeding hepatitis
describe the diagnostic criteria for ADHD in under 17 year olds
6/9 inattentive symptoms
6/9 hyperactive/impulsive symptoms
- present before 12 yr old
- developmentally inappropriate
- several symptoms in 2 or more settings
- clear evidence symptoms intefere/reduce QoL (social/academic etc)
describe some features of inattentive symptoms
easily distracted
not listening
difficulty sustaining attention during activities
forgetful in activities
difficult to follow instructions
difficult to organise tasks
describe some features of hyperactive symptoms
squirms/fidgets
cant remain still
run/climbs excessively
‘on the go’
talks excessively
cannot do tasks quietly
describe some features of impulsive symptoms
blurts out answers to questions
cannot wait their turn
interrupts or intrudes on others
describe the epidemiology of ADHD
4-7% school age children
males: females 4:1
overlaps with many other mental disorders
what are some risk factors for ADHD
foetal oxygen deprivation
maternal smoking
low birth weight
prematurity
heroin use in pregnancy
genetic component
low socioeconomic status
other psychiatric disorders - aspergers/odd/tics
describe the non drug management of ADHD
parent education and training
CBT to support social skills etc
regular routines
rewards and targets to reach for
school support
describe the drug management of ADHD
stimulants (increase dopamine) = as needed:
- ritalin = short acting
- delmosart = long acting
- elvanse
non stimulants (breakdown norepinephrine) = regular taking:
- atomoxetine (SNRI)
- guanfacine
** or combination **
what is the efficacy of ADHD drugs
70% benefit of stimulant medication
significant side effects - cardiac/anorexia/anxiety/depression
describe the prognosis of ADHD
30% grow out of it
15% remain meeting criteria by 25
describe the epidemiology of ASD
1 in 100
500,000 in UK
boys x4 to girls
what are the cardinal symptoms of Autism SD
combination of difficulties of:
1. communication/speech and language
2. social interaction
3. behaviour rigidity/routines/rituals
describe some of the communication features of ASD
lack of desire to communicate
communicate needs only
disordered/repeated speech
poor non verbal comms
no social awareness
describe some of the social interaction features of ASD
no desire to interact
lack of motivation to please others
affectionate on own terms
no understanding of social cues
inappropriate touching/eye contact
plays alone/stressful to be with others
describe some of the rigidity/imagination features of ASD
use toys as objects
cannot play imaginatively
resist change
playing same game over/obsessions
learn by rote not by understanding
follows rules exactly
inability to see others point of view
describe the management of ASD
education/information
parenting workshops - timetables etc
school liaison/support
manage comorbidities
what are the features of an ‘innocent’ murmur
4 S’s
Soft blowing murmer
aSymptomatic
left Sternal edge
Systolic murmur
short duration
name the congenital infections to be aware of
CHRISTS
CMV
HSV
Rubella
hIV
Syphillus
Toxoplasmosis
what do you give a pregnant lady with syphillis
IM benzylpenecillin
how do you treat toxoplasmosis in pregnancy
spiromycin
what causes epiglottitis and what are some red flag signs
haemophilus B
high fever
drooling saliva
soft stridor
tripod stance/mouth open
how is epioglottitis managed
do not examine throat
paeds emergency!!!!!
anaesthetis and ENT surgeon needed
keep child calm
prepare for intubation
once airway secures = blood cultures
TX: cefuroxime
3-5 day abx
what is prophylaxis for epiglottitis
rifampicin for household contacts
what is the treatment for croup
1st line = oral dose dexamethasone
severe:
nebulised adrenaline
oral prednisolone
nebs steroids
what age group does bronchiolitis effect
up to 1 year old
rare after 1
what preventative treatment is given for bronchiolitis
pavlizumab = for high risk
- premy
- CF
- chronic heart/lung disease
what are the most common causes of pneumonia in newborn
group B strep
gram negative enterococci
= from mothers genital tract
what are the most common causes of pneumonia in infants/young kids
bacterial
= strep. pneum
= h.influenza
= bordatella pertussis
= chlamydia
= s.aureus
viral
= RSV
= rhinovirus
most common causes pneumonia in over 5s
strep. pneumonia
chlamydia pneumoniae
klebsiella
mycoplasma
most common cause of pneumonia in immune comprpmised
pneumocystitis jiroveci
TB
describe the indications for hospitalisation in pneumonia
sats <93%
severe tachypnoea/difficult breathing
grunting
apnoea
not feeding
family unable to provide care
describe the antibiotic treatment for pneumonia
newborn = broad spec (benpen + gentamycin)
older children = oral amoxicillin/erythromycin
describe the presentation of otitis media and what are the typical causative pathogens
irritable/miserable child
pulling at ear
6 months - 12 months most common
RSV
rhinovirus
pneumococcus
h.influenzae
describe the examination findings of tympanic membrane for otitis media +/- effusion
red
bulging
lack of light reflection
+effusion:
= dull and retracted
= visible fluid level
how is otitis media treated
simple analgesics
80% spontaneous resolution
possible amoxicillin
what is glue ear and how is it treated
otitis media with effusion
recurrent OM infections = reduce hearing
most common cause conductive hearing loss in children
no Tx or grommets
what are the most common causes of tonsillitis
viral
group A beta haemolytic strep
what indicates more likely bacterial tonsilitis
headache
apathy
abdo pain
tonsillar exudate/pus
cervical lymphadenopathy
what are the causes of proteinuria in children
transient
orthostatic
increased glomerular perfusion pressure
reduced renal mass
hypertension
tubular proteinuria
glomerular abnormalities: GN, minimal change, abnormal BM
what is the most common cause of nephrotic syndrome in children + name 4 other causes
- minimal change disease
- HSP/vasculitis
- SLE
- infections
- allergens
what are the 3 categories of nephrotic syndrome and who is high risk for each
congenital - finnish people
steroid sensitive - boys/asian/atopic
steroid resistant
describe congenital nephrotic syndrome
first 3 months of life
rare but very serious
end stage renal failure and dialysis needed
high mortality
what are the features suggesting steroid sensitive nephrotic syndrome
age 1-10
no macroscopic haematuria
normal BP
normal complement
normal renal function
often resp infections precipitate
how is steroid sensitive nephrotic syndrome managed and what is the prognosis
60mg/m squared/day prednisolone 4 weeks every day
40mg/m squared/day 4 weeks alternate days
relapses can occur
if continue to adulthood may need methotrexate
what is the prognosis of steroid RESISTANT nephrotic syndrome
30% go to ESRF in 5 years
20% respond to cytotoxic meds
most spontaneously remit in 5 years
describe the classification for FTT
mild = fall across 2 centile lines
severe = fall across 3 centile lines
name the classification of causes of FTT
inadequate intake
difficulty feeding
malabsorption
increased energy requirements
inability to process nutrients
what are some organic causes of FTT
impaired suck/swallow - cleft palate/neuromotor dysfunction
cardiac disease = breathlessness
malabsorption = coeliac/CF/intolerance
chronic illness = liver/heart/renal
excessive calorie loss = vomiting/protein loss
increased calorie need = malginancy/CF
chromosomal = downs
what investigations for FTT
FBC
U&E
inflamm markers
coeliac antibodies
chest XR/sweat test for CF
what is the acute treatment for paediatric UTI
trimethoprim 3 day course
or
co-amoxiclav 5 day course
fluids
analgesia
adjust abx once sensitivities return
what are the fraser guidelines
used to assess if underage person is competent to consent to treatment:
1. can understand advice
2. cannot be persuaded to inform parents
3. likely to continue sexual intercourse without protection
4. physical and mental health suffer if dont get contraception
5. its in her best interest to receive contraception wihtout parental consent
what is the definition of osteoporosis in children
1 + vertebral crush fractures
2+ long bone fractures by 10
3+ by 19
bone density <2.5 SD below mean
describe the causes of osteoporosis in children
inherited:
- osteogenesis imperfecta
- haematological
acquired:
- drugs (steroids)
- endocrine disorder
- malabsorption
- inflammation/immobility
describe the pathophysiology of osteogenesis imperfecta
autosomal dominant
type 1 collagen defect
different types:
type 2 fatal
chest too small to allow breathing/multiple rib fractures/no lung function
= brittle bones
= fragiel bones
how does osteogenesis imperfecta present
bone fragility/fractures/deformity
bone pain
impaired mobility
poor growth
deafness/hernia/valvular prolapse