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Updated: Dec 12 2021

Portal Hypertension

Images
https://upload.medbullets.com/topic/120157/images/230px-hepaticfailure.jpg
  • Snapshot
    • A 46-year-old male presents to his primary care physician for a health maintenance examination. The patient talks about how he is struggling to cut back on his alcohol intake. The patient currently has no complaints, but feels as though he is gaining weight despite early satiety. On physical exam, the patient has mild scleral icterus. Gynecomastia is noted. Abdomen is distended, with a fluid wave.
  • Introduction
    • ↑ portal blood flow resistance at the level of the sinusoids → portal hypertension
    • Hyperdynamic circulation → ↑ portal blood flow → portal hypertension
      • mainly due to arterial splanchnic vasodilation
        • leads to increased blood flow to the portal venous system
  • ETIOLOGY
    • Prehepatic
      • portal vein thrombosis
      • malignancy
      • compression
        • e.g., pancreatic cancer
    • Intrahepatic
      • cirrhosis (most common)
      • schistosomiasis
      • Wilson disease
    • Posthepatic
      • Budd-Chiari syndrome
      • right-sided heart failure
      • constrictive pericarditis
  • Presentation
    • Manifestations
      • jaundice
      • ascites
        • excess fluid accumilation in peritoneal cavity
      • splenomegaly
        • secondary to congestions
        • can lead to hypersplenism → thrombocytopenia
  • IMAGING
    • Upper endoscopy
    • Doppler ultrasonography
      • can identify collateral vessels, alterations in portal blood flow
  • STUDIES
    • Serum-ascites albumin gradient (SAAG)
      • ≥ 1.1 g/dL can suggest portal hypertension
  • Treatment
    • Treatment aimed at ameliorating the complications of portal hypertension, examples include:
      • varices but no bleeding
        • endoscopic variceal ligation
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Gastrointestinal | Portal Hypertension
  • Gastrointestinal
  • - Portal Hypertension
16:32 min
5/16/2023
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