Management of Adolescent Acute Variceal Bleeding and Portal Hypertension

Introduction to Portal Hypertension

The American Association for the Study of Liver Diseases recommends that portal hypertension in children and adolescents is not cirrhosis until proven otherwise, with extrahepatic portal vein obstruction (EHPVO) being the most common cause 2
Normal liver enzymes in the presence of massive varices and splenomegaly are pathognomonic for EHPVO, a condition that typically presents with acute variceal bleeding as the sentinel event in children and adolescents 2

The European Association for the Study of the Liver suggests that CT or MRI with portal venous phase contrast is necessary to confirm portal vein patency and cavernomatous transformation, as ultrasound alone is inadequate for diagnosing EHPVO 2
Gastric varices are more dangerous than esophageal varices, bleeding less frequently but more massively, and require different treatment, such as cyanoacrylate injection 4

The American College of Gastroenterology recommends that vasoactive drugs, such as terlipressin or octreotide, should be started as soon as variceal bleeding is suspected, before endoscopy, to reduce portal pressure and prevent rebleeding 5, 2, 6
Restrictive transfusion strategy, targeting hemoglobin levels of 7-9 g/dL, reduces mortality and rebleeding risk, as over-transfusion increases portal pressure 2
Antibiotic prophylaxis with ceftriaxone reduces mortality, infections, and rebleeding in variceal hemorrhage, and should be continued for up to 7 days 2, 6

The American Association for the Study of Liver Diseases recommends that non-selective beta-blockers (NSBBs), such as carvedilol, are superior to propranolol for portal pressure reduction, with a target heart rate of 55-60 bpm 6
Repeat endoscopic variceal ligation (EVL) every 2-8 weeks until variceal eradication, followed by surveillance endoscopy every 6-12 months, is essential for secondary prophylaxis 2

EHPVO has an excellent long-term prognosis if bleeding is controlled, with preserved liver function, and focus should be on preventing rebleeding 2
Rebleeding risk is highest in the first 5 days, emphasizing the importance of close monitoring and vasoactive drugs during this period 5
Prothrombotic workup is essential in adolescents with EHPVO, as underlying hypercoagulable states may require anticoagulation 2