Paeds GI and Liver Flashcards
What is pyloric stenosis?
Thickening and narrowing of the pylorus
When does pyloric stenosis present?
First 2-8 weeks of life
What is the vomit like in pyloric stenosis?
Projectile vomit
Why is there projectile vomiting in pyloric stenosis?
Increasing peristaltic waves in the stomach
Food cannot pass to duodenum due to hypertrophy
Results in projectile vomiting.
Findings on examination in pyloric stenosis?
Firm round mass in upper abdomen
What do blood gas results show in pyloric stenosis?
Hypochloric metabolic alkalosis
Which investigation diagnoses pyloric stenosis?
Abdo USS
What is the management of pyloric stenosis?
Laparoscopic pylorotomy (incision in the smooth muscle of the pylorus to widen the canal)
What is infant colic?
Baby draws up their knees and is accompanied by inconsolable crying before passing wind
What are the clinical features of CMPA?
Symptoms 2 hours post feed
Pruritus
Erythema
Angioedema around lips
Nausea
Vomiting
Diarrhoea
Colicky pain
How is CMPA diagnosed?
Diagnosed clinically
Management of CMPA?
Hydrolysed formula milk
Soya milk (over 6months)
What is intussuception?
Invagination of one part of the bowel into another
What are the consequences of intusseption?
Bowel obstruction
When does intussuception commonly occur?
Ages 3months to 2 years
What are the clinical features of intussusception?
Paroxysmal colicky pain
Sudden onset of inconsolable crying episodes
Red current jelly stools
What are the stools like in intussuception?
Red current jelly stools
What can be felt on examination in intussuception?
Sausage shaped abdo mass in the right upper quadrant
Which part of the bowel does intussuception most commonly occur?
Ileocaecal valve
What is the preferred method of diagnosis for intussuception?
USS
What signs can be seen on transverse plane with USS in intussuception?
Doughnut sign
What is the management of intussuception?
Fluids
NG tube
Air or contrast enema to reduce intussuscepted bowel
Surgical reduction
What is Meckel’s diverticulum?
Remnant from the growing foetus of stomach or pancreas tissue, usually asymptomatic but can begin to secrete acid and form ulcers in the small intestine
Symptoms of meckel’s diverticulum?
Blood in the stoolS
Abdo pain
What are the risk factors for acute apendicitis?
Genetics
Caucasian
More common in summer
What is the pathophysiology of appendicitis?
Direct luminal obstruction of the appendix
Faecolith or impacted stool
Bacteria accumulate cause acute inflammation
Reduced venous drainage, and inflammation causing increased pressure and ischaemia of the appendix
Symptoms of appendicitis?
Anorexia
Vomitting
Abdo pain initially centrally then localising to the right hand side
Signs of appendicitis?
Rebound tenderness at mc burnleys point
Rosving’s sign (RIF pain on palpation of the LIF)
Guarding
Which score is used for appendicitis?
RIFT
What investigations should be carried out in cases of suspected appendicitis?
Urinalysis (rule out UTI)
Pregnancy test to rule out ectopic
USS or CT if clinical features are inconclusive
What is Hirschsprung disease?
Impaired nerve supply to the distal portion of the colon
This impacts peristalsis and can cause bowel obstruction.
What are the clinical features of hirschprungs?
Severe constipation
Not passing meconium within 24 hours
Abdo distention
Bile stained vomit
What is the gold standard investigation for hirschprungs?
Rectal suction with biopsy of the submucosa
What is the management of Hirschprungs?
Resection of the bowel with impaired nerve supply
What are the most common causes of gastroenteritis?
Rotavirus
Campylobacter
Norovirus
Adenovirus
E.coli
Clinical features of gastroenteritis?
Loose/watery stool
Vomiting
Abdocramps/pain
Mild fever
Management of gastroenteritis?
Assess how dehydrated the child is, in order to determine fluids