paediatrics anki 2 Flashcards
In patients with androgen insensitivity syndrome why don’t female internal organs develop?
Testes produce anti-Mullerian hormone-> prevents males from developing upper vagina, uterus, cervix and fallopian tubes
How would hormonal tests look in a patient with androgen insensitivity syndrome?
Raised LH
Normal/raised FSH
Normal/raised testosterone (for a male)
Raised oestrogen(for a male)
How is androgen insensitivity syndrome managed?
Specialist MDT: paeds gynae, urology, endo, psych
Counselling-generally raised as female
Bilateral orchidectomy(avoid testicular tumours)
Oestrogen therapy
Vaginal dilators/surgery to create an adequate vaginal length
Give some examples of learning disabilities
Down’s
ASD and aspergers
Williams
Fragile X
Global developmental delay
Cerebral palsy
How do children with fragile X present?
Large face
Large protruding ears
Intellectual impariment
Post pubertal macroorchidism
Social anxiety
ASD features
Name some differentials for fragile X
ASD(no physical characteristics)
Down’s
Turner’s
How is Fragile X syndrome diagnosed?
Genetics-test number of CGC rpeats in FMR1 gen
eCan also be used to detect carriers
How is Fragile X syndrome treated?
Behavioural therapy->manage social anxiety and ASD features
SALT for communication
Educational support
Medical management for physical complications
Name some differential diagnoses for Kawasaki disease?
Scarlet fever-high fever, strawberry tongue and sandpaper red rash
Measles
Drug reactions
Juvenile rheumaotid arthritis
Toxic schock syndrome
Describe the natural course of Kawasaki disease
Acute:
1-2 weeks
Child most unwell with fever, rash and lymphadenopathy
Subacute:
2-4 weeks
Acute sx settle, demasquation and risk of coronary artery aneurysms
Convalescent:
2-4 weeks
Remaining sx settle, coronary arteries may regress
How is measles transmitted?
Via droplets from nose, mouth or throat of infected patient
Describe the typical sequence of symptom onset in patients with measles
High fever >40 degrees
Coryzal symtpoms
Conjunctivitis
Koplik spots
Rash
Name some differential diagnoses for measles
Rubella
Roseola
Scarlet fever
How can rubella be differentiated from measles?
Rubella often milder and begins on face then spreads
How long after exposure to measles do symptoms develop?
10-14 days post exposure
Name some complications of measles
Acute otitis media-most common complication
Pneumonia: most common cause of death
Encephalitis: typically 1-2 weeks after onset
How is chicken pox spread?
Airborne-direct contact with rasj or breathign in particles form infected person’s cough/sneeze
Can be caught from someone with shingles
How is chicken pox diagnosed?
Clinically
How is rubella transmitted?
Through respiratory droplets
How is rubella diagnosed?
Serology
rubella-specific IgM or rise in IgG in acute and convalescent serum samples
How is rubella treated?
Supportive: antipyretics and analgesia
Isolate individuals to prevent spread, escpecially amongst unvaccinated pregnant women
Name some complications of rubella
Arthritis
Thrombocytopenia
Encephalitis
Myocarditis
How does diptheria damag the body?
Diptheria toxin commonly causes a ‘diptheric membrane’ on tonsils cuased by necrotic mucosal cells
System distribution can produce necrosis of myocardial, neural and renal tissue
How might a patient with diphtheria present?
Recent visitor to Eastern europe/russia/asia
Sore throat with ‘diphtheric membrane
‘Bulky cervical lymphadenopathy
Neuritis
Heart block
How is a patient diagnosed with diphtheria?
Culture of throat swab-Use tellurite or Loeffler’s media
How is diphtheria managed?
Intramuscular penicillin
Diphtheria antitoxin
How can scalded skin syndrome be differentiated from toxic epidermal necrolysis(TEN)?
Scalded skin syndrome: oral mucosa usually unaffected
Name some differential diagnoses for scalded skin syndrome
Toxic Epidermal Necrolysis (TEN): manifests with widespread erythema and necrosis, leading to detachment of the epidermis. It involves mucous membranes, which differentiates it from SSS
S Pemphigus vulgaris: characterised by flaccid blisters and erosions on the skin and mucous membranes; Nikolsky sign is also positive
Bullous Impetigo: typically presents with localized bullae filled with pus, often with surrounding erythema and tenderness
How is scalded skin syndrome diagnosed?
Usually clinical
Biopsy can help differentiate from TEN
Cultures: presence of S aureus
How is scalded skin syndrome treated?
IV antibiotics: flucloxacillin-inhibits toxin synthesis
Supportive: fluid replacement and pain management
Wound care to prevent secondary infections
How does flucloxacillin treat scalded skin syndrome?
Prevents toxin synthesis
How do patients with whooping ocugh present?
Spasmodic coughing with a prolonged duration per episode
Inspiratory whooping sound
Rhinorrhoea
Post-tussive vomiting
Apnoeas, especially in infants
Name some consequences of persistent coughing in patient with whooping cough
May develop subconjunctival haemorrhages or anoxia leading to syncope or seizures
How do infants with whooping cough often present?
Apnoeas
How is whooping cough managed?
Oral macrolide: clarithromycin, azithromycin etc if cough onset within 21 days
Notify public health
Antibiotic prophylaxis to household contacts
How do macroldies help patients with whooping cough?
Don’t alter disease course, byt may alleviate symptoms and minimise transmission
Name 4 enteroviruses
Coxsackie A
Coxsackie B
Poliovirus
Echorviruses
How do enteroviruses spread?
Faeco-oral or droplet transmission
How do patients with polio present?
Most commonly asymptomatic
Minor: flu-like, pain, fever fatigure, headache, vomiting
Major: Acute flaccid paralysis-> bulbar paralysis
How is polio diagnosed?
Clinical
Lab: stool, throat swab, CSF analysis
How is polio managed?
No cure
Supportive: pain relief, ventilation if breathing difficulties etc
Physio: in cases of paralytic polio
Preventative: vaccination
Name some complications of polio
Paralysis, disability and deformities
Respiratory issues: from bulbar polio
Post-polio syndrome: years after initial infection-> muscle weakness, fatigue and pain in previously affected muscles
Name osme viral causes of meningitis
Enteroviruses
HSV
HIV
Describe the typical presentation of a child with fifth disease
Prodrome of mild fever, coryza, diarrhoea
Characteristic bright red rash on cheeks after a few days-can spread to rest of body but rarely involved palms and soles-peaks after a week then fades
How is fifth’s disease spread
Via respiratory route
name some differentials for fifths disease
Rubella: presents with a similar rash, but also includes lymphadenopathy and conjunctivitis
Scarlet fever: presents with a similar rash, but also includes a sore throat and a ‘strawberry’ tongue
Roseola: presents with a high fever followed by a rash, but the rash is typically non-pruritic and pink in colour
How is fifth’s disease diagnosed?
Usually clinical
Atypical: serological testing for Parvovirus B19
FBC: low reticuloycte
How is pneumonia manged?
At home: analgesia, rest, fluids etc
Hospital: IV fluids and oxygen and antibiotics
How is pneumonia in neonates managed?
IV fluids
Oxygen
Broad spectrum antibiotics
How is pneumonia in infants managed?
IV fluids
Oxygen
Amoxcicillin/co-amoxiclav if severe
How is pneumonia in children aged >5 years managed?
IV fluids
Oxygen
Amoxicillin/erythromycin
Name a complication of pneumonia in children
Parapenumonic collapse and empyema
How do patients with asthma typically present?
Episodic wheeze that is persistent most days and night
Dry cough
SOB
Symptoms worse at night and early morning
Symptoms have trriggers: exercise, pets, dust, cold air, laughingInterval symptoms
How would you describe a wheeze to a parent?
Whistling in chest when your child breathes out
Name some respiratory failure red flags
Drowsiness
Cyanosis
Laboured breathing
Lethargy
Tachycardia
Use of accessory muscles
Name some important features to assessing a child presenting with a wheeze
Fever
Weight loss
Apnoea
LOC
CYanosis
O2
Hepatomegaly
Breathing: too breathless to feed, hyperinflation/recession, use of accessory muscles, nasal falring, auscultation/percussion
Heart rate >160bpm
Murmur?
Name some causes of a wheeze in children
Asthma
Bronchiolitis
Penumonia
Transient early wheezing
Non atopic wheezing
Cardiac failure
Inhaled foreign body
Aspiration of feeds
Cystic fibrosis
Congenital abnormality of lung, airway and heart
How is moderate acute asthma treated?
SABA via spacer, 2-4 puffs
Consider oral prednisolone
Reassure
How long do symptoms of croup typically last?
48 hours to 1 week
Name some complications of croup
Airway obstruction-> trachea intubation
Otitis media
Dehydration form decreased fluid intake
Superinfection resulting in pneumonia
How might a patient with bacterial tracheitis present?
High fever
Toxic
Rapidly progressing into airway obstruction and thick airway secretions
How common is bronchiolitis?
Most common serious respiratory infection of infancy
Name some causes of bronchiolitis and which is the most common?
RSV-80% of cases
Parainfluenza. rhinovirus, adenovirus, mycoplasma pneumoniae
Name some risk factors for bronchiolitis
Breastfeeding for <2 months
Older siblings at nursery/school
Smoke exposure
Chronic lung disease of prematurity
How is bronchiolitis diagnosed?
Most clinical
Nasopharyngeal aspirate for RSV culture
CXR
If severe: blood gas analysis, continurous O2 monitoring
Name a risk factor for developing bronchiolitis obliterans
Lung transplant recipients
If both parents carry the gene for cystic fibrosis, what are the chances the child will have CF?
25%
If both parents carry the gene for cystic fibrosis, what are the chances the child will be a carrier?
50%
If both parents carry the gene for cystic fibrosis, what are the chances the child won’t have CF or be a carrier?
25%
If 1/25 people in UK have CF mutation, what are the cahnces of having a child with CF?
1/25001/25 x 1/25 x 1/4
How do neonates with cystic fibrosis typically present?
Meconium ileus due to viscous meconium
Failure to thrive
How do infants and toddlers with CF typically present?
Salty sweat
Faltering growth
Chest infection
Malabsorption
How do older children with CF present?
Delayed onset of puberty
Chest infections
Malabsorption
How is CF diagnosed?
Screening: neonatal blood spot test: high immunoreactive trypsinogen
Sweat test: high chloride
Genetic testing
How is CF managed?
Daily chest physio to clear mucus and prevent pneumonia
Prophylactic antibiotics, bronchodilators and meds to thin secretions
Regular immunisations-> influenza, penumococcla vaccines
Pancreatic enzyme replacement(Creon) and fat soluble vitamin supplementation (ADEK)
Bilateral lung transplant in end stage pulmonary disease
Name some complications of cystic fibrosis
Malabsorption and diabetes due to decreased pancreatic enzyme function
Liver failure
Chest infections-> pneumothoraz and life threatening haemoptysis
How does CF cause liver failure?
Mucus blocks bile ducts-> bile can’t leave liver
How common is acute epiglottitis?
Rare now due to HiB vaccine
How do patients with acute epiglottitis present?
Rapid onset and increase in respiratory difficulties
High fever, generally very unwell/toxic
Minimal/absent cough
Soft inspiratory stridorIntesne throat pain
DROOLING
TRIPOD POSITION->leant forward, extending neck, open mouth
Name some differentials for acute epiglottitis
Croup
Peritonsillar abscess
Bacterial tracheitis
How do patients with a viral induced wheeze present?
Viral illness for 1-2 days preceding onset
SOB
Signs of respiratory distress
Expiratory wheeze throughout the chest
How is multiple trigger wheeze treated?
Trial ICS/LTRA for 4-8 weeks
How do patients with otitis media typically present?
Otalgia(ear pain)
Fever
Hearing loss
Recent URTI symptoms
Discharge
Name some differential diagnoses for otitis media?
URTI
Mastoiditis
Otitis externa
Foreign body
How is otitis media managed?
Self-resolving: usually no antibiotics needed, simple analgesia
If no improvement after 3 days: can start antibiotics
In severe cases admit to hospital and antibiotics
Name some complications of otitis media
Chronic OM
Tympanic membrane perforation
Meningitis
Mastoiditis
Facial nerve palsy
Labyrinthitis
How can otitis media be prevented?
Avoid passive smoking
Avoid flat/supine feeding
How do patients with glue ear typically present?
Hearing loss in affected ear
How is glue ear diagnosed?
Otoscopy-> dull tympanic membrane with air bubbles or visible fluid level(can look normal), retracted eardrum
Name some of the risk factors for periorbital cellulitis
Male
Previous sinus infection
Recent eyelid injury
How do patients with periorbital cellulitis present?
Acute onset of red, swollen, painful eye, fever
Eryhtema and oedema of eyelids-> can spread to surrounding skin
Partial/complete ptosis of eye due to swelling
Orbital signs ABSENT(no pain/restriction on movement, proptosis, chemosis etc)
Name some differentials for periorbital cellulitis
Orbital cellulitis
Allergic reactions
How is periorbital cellulitis managed?
Referral to secondary care assessment
Oral antibiotics usually enough->empirical co-amoxiclav/cefotaxime
May require admission for observation
Name some causes of a squint
Idiopathic-most common
Hydrocephalus
Cerebral palsy
Space occupying lesion(retinoblastoma)
Trauma
Name some differential diagnoses for impetigo?
Eczema herpeticum
HSV infection
Contact dermatitis
Ringworm
How is impetigo diagnosed?
Usually clinically
Skin swab for mc+s in certain cases like recurrent infections or treatment resistant cases
Name some complications of impetigo
Sepsis
Glomerulonephritis
Deeper soft tissue infection-cellulitis
Scarring
Post strep glomerulonephritis
Scarlet fever
Staphyloccocus scalded skin syndrome
Name some differentials for toxic shock syndrome
Meningococcal scepticaemia
Stevens-Johnson syndrome
Kawasaki disease
How is suspected toxic shock syndrome investigated?
Sepsis 6
Throat/wound swabs
How is scarlet fever spread?
Via respiratory route-> inhaling or ingesting droplets or direct contact with nose and throat discharge
How is scarlet fever diagnosed?
Throat swab
DONT wait for results to start antibiotic treatment
Describe the treament of scarlet fever
Oral phenoxymethylpenicillin for 10 days
Azithromycin for penicillin allergy
notifiable disease-report to public health
Keep off school
How long do patients with scarlet fever need to stay off school?
Until 24 hours after commencing antibiotics
Name some complications of scarlet fever
Rheumatic fever
Post strep glomerulonephritis
Otitis media-most common
Invasive complications-meningitis, bactaraemia etc
How does the ductus venosus close?
Immediately after birth-> umbilical cord clamped and no blood flow->closes and becomes ligamentim venosum
How does the ductus arteriosus close?
Prostalgandins usually keep it open
Increased blood oxygenation-> drop in circulating prostaglandins->closes
Becomes ligamentum arteriosum
How does the foramen ovale close?
First breath->alveoli expand-> decrease pulmonary resistance in right atrium
Left atrial pressure->right atrial pressure->squashes septum and closesSealed shut after a few weeks-> fossa ovalis
Name some differentials for an ejection-systolic murmur
Aortic stenosis
Pulmonary stenosis
Hypertrophic obstructive cardiomyopathy
Name some causes/risk factors for a patent ductus arteriosus(PDA)
Genetics/related to rubella
Prematurity
How might a patent ductus arterious present in a newborn?
Incidentally in neworn exam with murmur
SOB
Difficulty feeding
Poor weight gain
Lower respiratory tract infections
In patients with a PDA that don;t present in childhood, how might they present in adulthood?
With heart failure later in life
How is a PDA diagnosed?
Echo
Left to right shunt
Hypertrophy of right, left or both ventricles
How are patients with PDA’s managed?
Usualy close by themselves, no treatment if no symptoms
Medical:
NSAIDs
Monitored with echos until 1 year
Symptomatic or severe or after 1 year if hasn’t closed spontaneously-> trans-catheter or surgical closure
How do NSAIDS work to treat PDA’s?
Inhibit prostaglandin synthesis (helps maintain ductal patency)
How might a patient with an atrial septal defect present?
Childhood:
SOB
Difficulty feeding
Poor weight gain
Lower respiratory tract infections
Asymptomatic->antenatal scans
Adulthood:
Dsypnoea
Heart failure
Stroke
How are atrial septal defects managed
Small: watch and wait
Surgery: transvenous catheter closure or open heart surgery
Medical: anticoagulants like aspiring, warfirin and NOACs
How are patients with critical coarctation of the aorta managed at birth?
Prostaglandin E used to keep ductus arteriosus open while waiting for surgery
Surgery to correct coarctation and ligate ductus arteriosus
How are VSDs diagnosed?
Typically through antenatal scans or newborn baby check
Can be asymptomatic and present later in life
How are VSD’s managed?
Small and asx: watch and wait, may close spontaneously
Surgically: transvenous catheter closure via femoral vein or open heart surgery
How does the VSD contribute to the tetralogy of fallot?
Blood can flow between ventricles
How does the overriding aorta contribute to tetralogy of fallot?
When right ventricle contracts, aorta is in direction of travel of that blood, greated proportion of deoxygentated blood enters aorta
How does stenosis of the pulmonary valve contribute to tetralogy of fallot?
Greater resistance against flow of blood from right ventricle
Blood flows through VSD and into aorta instead of pulmonary vessels
Due to overriding aorta and pulmonary stenosis-> blood is shunted from right to left->cyanosis
How can positional changes improve circulation in tet spells?
Older children: squat
Younger children: Bring knees to chest
Increases systemic vascular resistance so encourages blood to enter pulmonary vessels
How is tetralogy of fallot managed in neonates?
Prostaglandin infusion to maintain ductus arteriosus: allows blood to flow from aorta back to pulmonary arteries
Total surgical repair-mortality around 5%
How does sodium bicarbonate help treat a tet spell?
Buffers any metbaolic acidosis
How is transposition of the great arteries diagnosed?
Fetal US-most are picked up antenatally
Echo
CXR-egg on side
Describe the treatment of transposition of the great arteries
Prostaglandin E infusion-maintain ductus arteriosus
Balloon septostomy
Definitive: open heart surgery using bypass-arterial switch
How is Ebstein’s anomaly treated?
Treat arrhythmias and heart failure
Prophylactic antibiotics to prevent infective endocarditis
Surgical correction: definitive
How is congenital aortic valve stenosis diagnosed and monitored?
Echo: GS
Monitoring: echo, ECG, exercise testing
Desrcibe the treatment for congenital aortic valve stenosis
Percutaneous balloon aortic valvoplasty
Surgical aortic valvotomy
Valve replacement
Name some complications that can aride from congenital aortic valve stenosis
Left ventricular outflow tract obstruction
Heart failure
Ventricular arrhythmia
Bacterial endocarditis
Sudden death-on exertion
How is congenital pulmonary valve stenosis diagnosed?
Echo
Name some possible causes of nocturnal enuresis
Diabetes-> excessive urination
UTI’s->urgency/frequency
Constipation->compressess bladder
How can haemolytic uraemic syndrome be classified?
Secondary/typical
Primary/atypical
Name a differential diagnosis for haemolytic uraemic syndrome and explain how they can be dfferentiated?
Thrombotic thrombocytopenic purpura(TTP)
TTP will include symptoms of fever and neurological changes
How is typical haemolytic anaemia managed?
Supportive-> fluids, blood transfusions and dialysis if needed
NO antibiotics
How is atypical haemolytic uraemic syndrome managed?
Referral to specialist
Treatment with eculizumab(monoclonal antibody)
Plasma exchange may be used in severe cases with no diarrhoea
NO antibiotics
How does eculizumab treat haemolytic uraemic syndrome?
Monoclonal antibody-> inhibits the terminal complement pathway
How should urine samples be collected in children with a suspected UTI?
Clean catch
Non contaminated collection pad/catheter sample/suprapubic aspiration
Name some complications of a UTI
Renal scarring and CKD
Sepsis
How does vesicoureteric reflux result in recurrent UTI’s?
Backwards flow carries bacteria up to the kidneys
Give 3 causes of a vesicoureteric reflux
Shortened intravesical ureter
Impoperly functioning valve where ureter joins bladder
Neurological disorder affecting the bladder
Name some complicaiton of vesicoureteric reflux
Recurrent UTI’s
Pyelonephritis
Renal scarring and UTI’s
Hypertension
Describe the grading of vesicoureteric reflux
Grade 1: Incomplete filling upper urinary tract without dilatation
Grade 2: Complete filling +/- slight dilatation
Grade 3: Balloomed calyces
Grade 4: Megaureter
Grade 5: + hydronephrosis
Name some conditions Wilms’ tumour is associated with
Beckwith-Wiedemann syndrome
WAGR syndrome(Wilms’, aniridia, GU anomalies, mental retardation)
Denys-Drash syndrome: WT1 gene on CH 11
Name some differential diagnoses for a Wilms’ tumour
Neuroblastoma
Mesoblastic nephroma
Renal cell carcinoma->rare in children
Name one poor prognostic factor in a patients with Wilms’ tumour
Associations with other genetic conditions
Name some risk factors for cryptorchidism
Family history
Small for gestational age
Prematurity
Low brith weight
Maternal smoking in pregnancy
Name some conditions associated with cryptorchidism
Cerebral palsy
Wilms’ tumour
Abdominal wall defects
How is cryptorchidism diagnosed?
Cinical-physical exam in a supine position
How might a patient with cryptorchidism present?
Malpositioned/absent testes/testis
Palpable cryptorchid testis(unable to be pulled into scrotum/returns to higher position after pulling)
Non-palpable testis
Testicular asymmetry/scrotal hyperplasia
Name some differential diagnoses for cryptorchidism
Rretractile testis
Intersex conditions
How would a teenager presenting with cryptorchidism be managed?
Orchidectomy
Due to a higher risk of malignancy-Sertoli cells degrade after 2 years
Name some complications of hypospadias
Difficulty directing urination
Cosmetic and psychological reasons
Sexual dysfunction
Name some complications of phimosis/paraphimosis
Recurrent balanoposthitis/UTI’s
Venous congestion, oedema and ischaemia of glans penis
Name some primary causes of nephrotic syndrome
Minimal change disease
Focal segmental glomerulonephropathy
Membranous nephropathy
How does nephrotic syndrome result in an increased risk of thrombosis?
Decreased antithrombin 3, proteins c+s and increase in fibrinogen
How doe nephrotic syndrome result in lower thyroxine?
Decreased thyroxine binding globulin-> lowers total(not free) thyroxine
Name some complications of nephrotic syndrome
Hypovolaemia->oedema and hypotension
Thrombosis->kiedney leak clotting factorsInfection-> kidenys leak Ig’s and steroid use
Acute/renal failure
Name 2 drugs that can cause minimal change disease
NSAIDs
Rifampicin
Name some causes of nephritic syndrome
AI:
SLE or Henoch Schonlein purpura
Infections:
post strep
Goodpasture’s disease
IgA nephropathy(Berger’s)
Rapidly progressing glomerulonephritis
Membranoproliferative glomerulonpehritis
Describe the typical presentation of a patient with IgA nephropathy
Gross/microscopic haematuria occuring 12-72 hours after an URTI or GI infection
Mild proteinuria
Hypertension
Name some differential diagnoses for IgA nephropathy
Post strep glomerulonephritis(weeks post infection not days, IgA deposition)
Henoch Schonlein purpura-> same except systemic IgA complex deposition instead of just kidneys
Name some markers of good prognosis and poorer prognosis of patient with IgA nephropathy
Good: frank haematuria
Poor: male, proteinuria, hypertension, smoking, hyperlipidaemia
Name some differential diagnoses for post strep glomerulonephritis
IgA nephropathy
Name a complication of post strep glomerulonephritis
CKD
Rapidly progressing glomerulonephritis
Goodpastures disease: symptoms, cause,and treatment
Symptoms: pulmonary and alveoli haemorrhage
Cause: Anti-GBM antibody deposition
Treatment: Steroids and plasma exchange
Name some causes of rapidly progressinve glomerulonephritis
Goodpasture’s
IgA nephropathy
Henoch Schonlein Purpura
Lupus nephritis
Wegener’s granulomatosis
Describe the treatment of rapidly progressive GN
Corticosteroids and cyclophosphamide->induce remission
Plasmapharesis->anti GBM disease and severe ANCA associated vasculitis
Supportive: BP control, diet changes, manage fluid overload/electrolyte imbalances
Renal replacement therapy may be required
How can hypogonadism be classified?
Primary: testicular failure
Secondary: hypothalamic or pituitary disorders
Give some examples of primary hypogonadism
Klinefelter syndrome
Orchitis
Testicular trauma/torsion
Chemo/radioation
Give some examples of secondary hypogonadism
Kallmannm syndrome
Pituitary adenomas
Hyperprolactinoma
Anorexia
Opioid use
Glucocorticoid use
HIV/AIDS
Haemochromatosis
Name some differential diagnoses for hypogonadism
Depression
Thyroid disorders
CFS
How might hormone levels seem different in those with Klinefelter syndrome?
Elevated gonadotrophin levels(FSH, LH etc)
Low testosterone
How is Klinefelter diagnosed?
Karyotyping-chromosomal analysis
Hormones will also show high gonadotrophin levels and low testosterone
Describe the treatment of Klinefelter syndrome
Testosterone injections-improve many symptoms
Advanced IVF techniques-> fertility options
Breast reduction for cosmesis
MDT input: SALT, OT, physio, educational support
How is Turner’s syndrome diagnosed?
Pre-natally: amniocentesis or chorionic villus sampling(CVS)
Definitive: karyotyping after birth
Give some features of Down’s syndrome that aren’t on the face
Hypotonia
Pronounced sandal gap
Learning difficulties
Short stature
Congenital heart defects
duodenal atresia
Hirschsprung’s disease
Name some cardiac complications of Down’s sydnrome
Endocardial cushion defect
VSD(30%)
Secundum atrial septul defect
Tetralogy of fallot
Isolated PDA
Name some later complications of Down’s syndrome
Subfertility
Learning difficultires
ALL
Alzheimer’s
Repeated respiratory infections
Antlantoaxial instability-avoid trampolines
Hypothyroidism
Visual problems: myopia, strabismus, cataracts
How can Down’s syndrome be diagnosed?
Antenatal screening: between 10-14 weeks
Combined test: 10-14 weeks: US and maternal bloods
Triple test: 14-20 weeks: maternal blood tests
Quadruple test: 14-20 weeks
Give some examples of muscular dystrophies
Duchenne muscular dystrophy
Beckers muscular dystrophy
Myotonic musclar dystrophy
If a mother is a carrier for Duchenne muscular dystrophy and has a child, what it the likelihood that the child will be a carrier or have the condition?
If female: 50% chance of being a carrier
If male: 50% chance of having condiiton
How is Duchenne muscular dystrophy managed?
Mostly supportive
Oral steroids can slow the progression of muscle weakness
Creatine supplementation can slightly improve muscle stength
How is Becker’s muscular dystrophy different to duchenne muscular dystrophy?
Dystrophiin gene less severely affected and maintains some function, symptoms appear later(8-12 years), some patients need wheelchairs in late 20s/30s, others can walk into adulthood
How is William’s syndrome diagnosed?
FISH studies(fluorescence in situ hybridization)
Desrcibe the epidemiology of rickets
More common in regions of asia and Africa
Asia: lack of sunlight and low vegetable and meat diets
Africa: darker skin pigmentation and reduced vitamin D synthesis
Name some predisposing features to rickets
Dietary deficiency of calcium, e.g. in developing countries
Prolonged breastfeeding
Unsupplemented cow’s milk formula
Lack of sunlight
Name some differential diagnoses for transient synovitis
Septic arthritis
Ostemyelitis
How is transient synovitis diagnosed?
Often clinical diagnosis
Normal basic observations
Normal blood tests with no raised WCC or inflammatory markers
USS: may show effusion, X-ray normal
Joint aspirate: if done should be no bacteria present
How cam mosteomyelitis be classified?
Haematogenous spread: commonly occurs in children, spreads from elsewhere(bactaraemia)
Non-haematogneous spread: spreads from adjacent soft tissues/from firect injury/trauma to bone
Name some risk factors for haematogenous osteomyelitis
Sickle cell anaemia
IVDU
Immunosuppresion
Infective endocarditis
Name some differentials for osteomyelitis
Septic arthritis
Ewing sarcoma
Cellulitis
Gout
Name some risk factors for developing septic arthritis?
Pre-existing joint diseases like rheumatoid arthritis
CKD
Immunosuppresive states
Prosthetic joints
Name some complications of septic arthritis
Osteomyelitis
Chronic arthritis
Ankylosis
Name some differential diagnoses fro Perthes’ disease
Transient synovitis
Septic arthritis
SUFE
JIA
Name 2 complications of Perthes’ disease
Osteoarthritis
Premature fusion of the growth plates
How does the femoral head get displaced in Slipped Upper Femoral Epiphysis
Displaced posterio-inferiorly