Luminal GI Flashcards
What is the most common esophageal atresia?
Type N (also know as proximal atresia, distal fistula and also known as type C TE fistula).
Association with esophageal atresia
VACTERL
CHARGE
T18
T21
VACTERL
V: vertebral anomalies: hemivertebrae, congenital scoliosis, caudal regression
spina bifida
A: anorectal anomalies, anal atresia
C: cardiac anomalies; cleft lip,
TE: tracheo-esophageal fistula +/- esophageal atresia
R: renal anomalies; radial ray anomalies
L: limb anomalies: polydactyly, oligodactyly
Cardiac (77%) and renal (72%)anomalies: Most common
Coronal oritnetation of coin
Esophagus
Sagittal orientation of coin
Trachea
When to remove swallowed maget
If there are 2, if there is 1 it is ok.
When to remove AA and AAA battery?
2 days
When to remove disc battery
2 hours if esophagus
2 days if stomach
Coins (and pennies <1982)
24 hours in the esophagus
24 days in the stomach
Pennies >1982
Remove from stomach
Lead
Immediate removal from stomach
Sharp objects
Remove immediately if esophagus or stomach
Surgery/follow up if postpyloric
Associated with tracheal stenosis (primary) and narrowing between the esophagus and trachea.
Pulmonary sling (aberrant left pulmonary artery)
failure of formation of the 6th aortic arch.
“sling” is best used when the proximal portion of the anomalous vessel impinges on the right main bronchus and causes air trapping of the entire right lung
Hypoplastic right lung, TE fistula, imperforated anus.
Tx Surgical repositioning of the artery.
Shortness of breath (newborn), or difficulty swallowing (adult) most common symptomatic aortic arch variant
4th arch anomaly
No associated with congenital cardiac abnormalities
Most commonly dominant RIGHT
Innominate artery compression syndrome
Normal anatomy + stenosis of trachea and obstructive symtoms.
What causes posterior esophagus compression on esophagogram?
Double aortic arch AND aberrant subclavian (right aberrant with a left arch or left aberrant with right arch, most common aortic arch anomaly)
Diverticulum of Komerell
Pro
Single bubble
Pyloric atresia (image) Antral atresia
Double bubble
HIGHLY SPECIFIC for duodenal atresia
Tripple bubble
Double bouble + distal gas
Exclude atresia
Differential includes midgut volvulus, duodenal stenosis and duodenal webb
Diffusely dilated bowel loops
= Barium enema
If negative= Upper GI (exclude atypical volvulus)
What is most commonly associated with?
Heterotaxy, omphalocele, duodenal atresia, internal hernias
Most common presentation in infants: Volvulus
Ladd bands: Older
SMA in the right and SMV in the left
Midgut volvulus
Ladd procedure:
Release of abnormal bands in second portion
Pexy second and cecum
Appendectomy
Intestinal nonrotation
small bowel occupying the right side of the peritoneal cavity and the colon predominantly on the left
Wandering duodenum
Duodenum inversus
Ladds band
Fibrous staff fixing the cecum, by mistake takes the second portion of the duodenum and causes a partial obstruction
Ladds procedure
Preudoduodenal portal vein
Duodenal obstruction
Heterotaxy syndrome or polysplenia syndrome or associated with:
situs inversus bowel malrotation biliary atresia duodenal atresia annular pancreas
Hypertrophic pyloric stenosis
2-12 weeks
4 mm single wall
14 mm length
Organoaxial volvulus
Old, paraesophageal hernia
Mesenteroaxial volvulus
Children
Two buble of air within the chest
Triad of Borchard
Epigastric pain
Retching without vomiting
Inability to pass a nasogastric tube
Occurs in the second part of the duodenum and is associated with Down syndrome/intestinal malrotation//annular pancreas
Duodenal web
Anterior (two) buds unable to migrate from right to left posteriorly.
Annular pancreas, associated with Down’s syndrome, pancreatitis, duodenal obstruction, etc.
What is short microcolon
Colonic atresia
What is a long microcolon
Ileal atresia or cystic fibrosis (meconium ileus)
Having a microcolon and not terminal ileum
Ileal atresia
Vascular insult
Increased insident of chromosomal abnormalities
25% CF
Having long microcolon and poop in the terminal ileum
Meconium ileus= Cystic fibrosis
20% CF PRESENT WITH Meconium ileu at birht
What is an small left colon?
Meconium plug syndrome
Diabetic mothers
Eclampsia
Hirschprung disease
most common cause of neonatal colonic obstruction
definitive diagnosis requires a full-thickness rectal biopsy (2 cm above the dentate line as the region below the dentate line is normally aganglionic)
- short segment disease: ~75%: rectal and distal sigmoid colonic involvement only
- long segment: ~15%: typically extends to splenic flexure / transverse colon
- total colonic aganglionosis: ~7.5% (range 2-13%) also known as Zuezler-Wilson syndrome occasional extension of aganglionosis into the small bowel
- ultrashort segment disease: 3-4 cm of internal anal sphincter only controversial entity
Associated with CF, intestinal atresia and polyhydramnios
Meconium peritonitis
Associated with meconium peritonitis
Meconium pseudocyst
Who gets tehtered cords?
Imperforated annus:
Associated to other atresias, esophageal atresia, VACTERL association, caudal regression syndrome (associated sacral agenesis and lower limb hypoplasia),
Currarino’s triad (anorectal malformations with sacral anomalies and presacral mass lesion), fistulous tracts to the urethra or vagina may be present or may have a single cloacal opening
Invetrograms high vs low
High: >2 cm: colostomy and subsquent repair
Low: < 2 cm: anoplasty