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558 Section III / Subspecialty Surgery

 

Operation?

1. Resect

 

2. Stoma

What is an option for bowel

Placement of percutaneous drain

perforation in 1000 gram

(without laparotomy!)

NEC patients?

 

Is portal vein gas or

No

pneumatosis intestinalis

 

alone an indication for

 

operation with NEC?

 

What are the indications for peritoneal tap?

What are the possible complications?

What is the prognosis?

BILIARY TRACT

Severe thrombocytopenia, distended abdomen, abdominal wall erythema, unexplained clinical downturn

Bowel necrosis, gram-negative sepsis, DIC, wound infection, cholestasis, short bowel syndrome, strictures, SBO

80% overall survival rate

What is “physiologic

Hyperbilirubinemia in the first 2 weeks

jaundice”?

of life from inadequate conjugation of

 

bilirubin

What enzyme is responsible

Glucuronyl transferase

for conjugation of bilirubin?

 

How is hyperbilirubinemia

UV light

from “physiologic jaundice”

 

treated?

 

What is Gilbert’s syndrome?

Partial deficiency of glucuronyl

 

transferase, leading to intermittent

 

asymptomatic jaundice in the second or

 

third decade of life

What is Crigler-Najjar

Rare genetic absence of glucuronyl

syndrome?

transferase activity, causing unconjugated

 

hyperbilirubinemia, jaundice, and death

 

from kernicterus (usually within the first

 

year)

 

Chapter 67 / Pediatric Surgery 559

BILIARY ATRESIA

 

 

 

What is it?

Obliteration of extrahepatic biliary tree

What is the incidence?

One in 16,000 births

What are the signs/

Persistent jaundice (normal physiologic

symptoms?

jaundice resolves in 2 weeks),

 

hepatomegaly, splenomegaly, ascites

 

and other signs of portal hypertension,

 

acholic stools, biliuria

What are the lab findings?

Mixed jaundice is always present (i.e., both direct and indirect bilirubin increased), with an elevated serum alkaline phosphatase level

What is the classic “rule of 5s” of indirect bilirubinemia?

Bizarre: with progressive hyperbilirubinemia, jaundice progresses by levels of 5 from the head to toes:

5 mg/dL jaundice of head, 10 mg/ dL jaundice of trunk, 15 mg/dL jaundice of leg/feet

What is the differential

Neonatal hepatitis (TORCH); biliary

diagnosis?

hypoplasia

How is the diagnosis made? 1. U/S to rule out choledochal cyst and to examine extrahepatic bile ducts and gallbladder

2.HIDA scan—shows no excretion into the GI tract (with phenobarbital preparation)

3.Operative cholangiogram and liver biopsy

What is the treatment? Early laparotomy by 2 months of age with a modified form of the Kasai hepatoportoenterostomy

How does a Kasai work?

Anastomosis of the porta hepatis and the small bowel allows drainage of bile via many microscopic bile ducts in the fibrous structure of the porta hepatis

560 Section III / Subspecialty Surgery

 

What if the Kasai fails?

Revise or liver transplantation

What are the possible

Cholangitis (manifested as decreased

postoperative complications?

bile secretion, fever, leukocytosis,

 

and recurrence of jaundice),

 

progressive cirrhosis (manifested as

 

portal hypertension with bleeding

 

varices, ascites, hypoalbuminemia,

 

hypothrombinemia, and fat-soluble

 

vitamin K, A, D, E deficiencies)

What are the associated

Between 25% and 30% have other

abnormalities?

anomalies, including annular pancreas,

 

duodenal atresia, malrotation, polysplenic

 

syndrome, situs inversus, and preduodenal

 

portal vein; 15% have congenital heart

 

defects

CHOLEDOCHAL CYST

 

 

 

What is it?

Cystic enlargement of bile ducts; most

 

commonly arises in extrahepatic ducts, but

 

can also arise in intrahepatic ducts

What is the usual

50% present with intermittent jaundice,

presentation?

RUQ mass, and abdominal pain; may also

 

present with pancreatitis

What are the possible

Cholelithiasis, cirrhosis, carcinoma, and

complications?

portal HTN

What are the anatomic

 

variants:

 

I?

Dilation of common hepatic and common

 

bile duct, with cystic duct entering the

 

cyst; most common type (90%)

Chapter 67 / Pediatric Surgery 561

II?

Lateral saccular cystic dilation

III?

Choledochocele represented by an

 

intraduodenal cyst

IV?

Multiple extrahepatic cysts, intrahepatic

 

cysts, or both

V?

Single or multiple intrahepatic cysts

562 Section III / Subspecialty Surgery

 

How is the diagnosis made?

U/S

What is the treatment?

Operative cholangiogram to clarify

 

pathologic process and delineate the

 

pancreatic duct, followed by complete

 

resection of the cyst and a Roux-en-Y

 

hepatojejunostomy

What condition are these

Cholangiocarcinoma often arises in

patients at increased risk

the cyst; therefore, treat by complete

of developing?

prophylactic resection of the cyst

CHOLELITHIASIS

 

 

 

What is it?

Formation of gallstones

What are the common

Etiology differs somewhat from that

causes in children?

of adults; the most common cause is

 

cholesterol stones, but there is an

 

increased percentage of pigmented

 

stones from hemolytic disorders

What is the differential

Hereditary spherocytosis, thalassemia,

diagnosis?

pyruvate kinase deficiency, sickle-cell

 

disease, cystic fibrosis, long-term

 

parenteral nutrition, idiopathic

What are the associated

Use of oral contraceptives, teenage,

risks?

positive family history

What is the treatment?

Cholecystectomy is recommended for all

 

children with gallstones

ANNULAR PANCREAS

 

 

 

What is an annular

Congenital pancreatic abnormality with

pancreas?

complete encirclement of the duodenum

 

by the pancreas

What are the symptoms?

Duodenal obstruction

What is the treatment?

Duodenoduodenostomy bypass of

 

obstruction (do not resect the pancreas!)

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