Vomiting Flashcards
What are the types of vomiting
Retching
Projectile
Bilious
Effortless
What are the symptoms of retching
Pallor, nausea, tachy pre ejection
Retch and vomiting
Weakness / shivery / lethargy after
What does billious vomiting suggest
Obstruction until proven otherwise
What causes obstruction
Intestinal atresia Duodenal atresia Imperforate anus Malrotation + volvulus Intussception Chron's stricture Ileus 2 to sepsis Hirschprung's Meconium ileus
What stimulates vomit
Infection - Gastroenteritis = most common - Consider sepsis / UTI / meningitis / pneumonia Intestinal inflammation Metabolic derangement - DKA - Hypoglycaemia Enteric pathogens releasing toxins Head injury Intracranial - Tumour or infection Visual stimuli Middle ear stimuli
What is in your differential for a young baby projectile vomiting after every feed and irritable
Gastro reflux Over feeding CMPI Pyloric stenosis Bilious causes / surgical / obstruction Appendicits Unlikely infection as protected by mother Ab
What are other causes of vomitng
Cyclical vomitng
Infection - gastroenteritis
Sepsis
Vomit in newborn
Intestinal atresia
Wont survive if don’t treat
What do you tell parents with infants with reflux
Resolve as sphincter tone improves
Reassure if goof weight
Reflux that persists
Cerebral palsy
GI motility disorder
Oesophageal atresia
How do you Ix vomit esp billous
Bloods AXR Upper GI USS Contrast meal Surgical laparotomy
How do you Rx billous
IV fluid
NG
Surgery
What are you at risk of if persistent vomiting
Ketoacidosis
Electrolyte
Dehydration
What is important in the hX
Is child well or sick Growth Development Duration After food Projectile Retching or effortless Colour - billous?
What is the most common cause of vomiting in babies
Gastro reflux
Can be physiological due to sphincter not established yet
What are the symptoms of gastro reflux
Effortless vomit Painful - discomfort / unsettled Poor feed Excessive swallow Strange position Haeamtemesis Resp - Apnoea - Chronic cough - Infection - Wheeze FTT If >1 will experience same symptoms as adults
When is reflux more common
Pre-term
Neurological
How do you Dx reflux
Clinical Don't rush to change milk Videofluroscopy Barium swallow pH and manometry Endoscopy
What when do you do video
Aspiration
Swallowing issue
When do you do barium swallow
If think
Dysmotility
Hernia
Strictue
When do you do barium swallow
Aspiration
Inadequate contrast
When do you do endoscopy
If >2 years
How do you treat reflux
Feeding advise Milk thickener- Gavsiscon / Coropril Supplements Trial of PPI / H2 NG tube / gastrostomy Surgery
When do you give PPI / H2 and what do they do
PPI = decrease acid
H2 = stop acid
If feeding difficult / faltering growth or distress or failed to improve with Gaviscon
When do you conisder fundolipication
Persistent FTT
Oesophagitis
Aspiration
Complications of reflux
Distress FTT Aspiration Otitis media Dental erosion
What is Sandifer
Reflux
Dystonia
Torticollis
Refer as Dx could be West syndrome
Ddx reflux
CMPI
Think if poor response or atopy
Feeding advice in reflux?
150ml/kg/day
Position
Routine
What are complications of surgery
Bloating
Dumping
Retching
What is CMPI / lactose intolerance
Delayed non-Ige reaction to milk (intolerance)
Usually present first 3 months in formula fed (can occur in breast)
If IgE would be immediate (known as allergy)
Can get anaphylaxis / angiooedema but rare
How does CMPI present
Reflux symptoms don't improve - Regurgitation + vomit - Wheeze - Chronic cough Skin involvement Gut involvement
Signs of skin involvement
Rash
Ectopic eczema
Urticaria
FH atopy
Signs of gut involvement
D+V - osmotic Blood / mucous Frequent runny stools Abdo pain Distension Poor feed FTT
Who is at risk of CMPI
Formula fed babies
FH atopy
How do you Dx CMPI
Clinical
Eliminate diet
Skin prick can be done
When do you investigate further
Bile
FTT despite change in milk
What should you do before leave hospital
Milk challenge as anaphylaxis can rarely occur
How do you treat
4 week milk avoidance
Continue breast but eliminate cow from diet
Calcium supplement
What is 1st line and what do you do if doesn’t work
Highly hydrolysed cow milk protein - protein broken down
AA if severe colitis
What should you do regularly
Rechallenge
Milk ladder approach - cooked milk in biscuit then yoghurt then milk
What should you suspect if dehydrated
Obstruction as CMPI doesn’t cause
DDX
Reflux Coeliac - not if baby Cows milk allergy - no allergic / skin symptoms (will still grow if have milk will just feel sick) Pyloric stenosis NEC Surgical Infection - culture?
What is NEC and what are RF
Inflammatory bowel necrosis common in pre-term Necrosis can lead to bowel perforation, peritonitis and death - Pre-term - LBW - Enteral feeding - Formula feed - Resp distress - Sepsis
How does NEC present
Poor feed Abdo distension Bloody / mucous stool Lethargy Vomiting bile Sepsis Vital signs instability Absent bowel sounds Rapid progression ot shock requiring mechanical ventilation
How do you Dx NEC
FBC, CRP Blood gas Stool and blood culture X-match blood AXR
What does AXR show
Asymmetrical dilated bowel Bowel oedema Pneumatosis intestinalis - gas in gut wall Free air Pneumoperitoneum
What is Rx
Stop feed + NBM NG IV fluids TPN if long term Ax as risk of perforation Surgical laparotomy if perforate / to remove necrotic bowel May need resection + stoma
What Ax
Amoxicillin
Metronidazole
Gentamicin
If pre-term what do you do prophylaxis
Careful introduction of food
Breast milk protective
What are complications
Shock DIC Perforation Peritonitis Stricutres Abscess Long term stoma Short bowel syndrome
DDX
CMPI
Hirschprung
Volvulus
What is pyloric stenosis
Pylorus muscle hypertrophies at 6 weeks
How does it present
Projectile non bile vomit 30 mins after feed No bowel Sx Palpable mass Visible peristalsis Constipation Dehydration Weight loss FTT
RF
6 weeks
Male
FH
How do you Dx
USS - olive shape mass
U+E = hypochlorameia / hypokalaemia alkalosis
Test feed
How do you treat
IV fluid to correct electroylte
NBM and NG to remove acid
Pyloromytomy when biochemistry improves
Why alkalosis
Lose HCL in vomit
Lose K to keep H
Increased bicarb
Complications
Dehydration
What is intussusception
Invagination of one portion of bowel into adjacent
Commonly ileo-caecal
How does it present
Hx viral illness Intermittent colic or crying Drying spell due to vagal - floppy / apnoea Abdo distension Loose frequent stool Billious vomit Toxic / irritable Blood / mucous PR Mass RIF Long cap refil Not always bilious / blood
Who is at risk
Toddler
6-18 months
Older tha DIC
How do you Dx
USS = target mass 1st line
AXR rule out obstruction
CT / bowel enema
How do you treat
Pneumostatic reduction urgent under radiological guidance = 1st line
Barium enema
What do you do if fails
Laparotomy if fails or peritonitis
What are complications
Dehydration
Obstruction
Necrosis of bowel
DDX
Gastroenteritis
Sepsis
What gives you clue to Dx
Lack of fever
Immense frequent stools
Where does malroation occur and what does it present with
High caecum
Bile vomit
Volvulus = scaphoid
RF
Newborn but any age
Diaphragmatic hernia
Duodenal atresia
Exomphalos
How do you Dx
Upper GI contrast study and USS
How do you Rx
Laparotomy
Ladds if volvulus
Complications
Obstruction
Peritoneal signs
Instability
What is another cause of vomiting
Cyclical
N+V lasting hours to days
Well in between
May be associated with weight loss, poor appetite, diarrhoea, abdominal pain, headache, dizzy, photophobia
How do you Dx and Rx
Clinical Blood tests to rule out Pregnancy in young women Avoid triggers Fluid Medication
How does duodenal present
Few hours after birth
Billious vomitnig
Down = increased risk
AXR = double bubble sign
If child comes in vomiting
ABCDE
Don’t forget glucose
Vitals
Signs of dehydration
What should you always consider and document even if suspect gastroenteritis
Intracranial Surgical Serious bacterial - Dip urine for UTI DKA / hypo
DDX child FTT, vomiting and poor appetite
Coeliac disease Iron deficiency anaemia CMPI / lactose intolerance Cow's milk anaemia IBD but quite young Metabolic
What should you do
FBC to look for anaemia
Coeliac screen + IgA
What should you always think of in iron deficiency anaemia
Coeliac disease
How do they present
Tend to not have GI Sx Low energy levels Iron anaemia Rash / joint pain / chronic cough Also neuro Sx adults