2009
DOI: 10.4103/0972-5229.56058
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Hepatic portal venous gas: A case report and review of literature

Abstract: Hepatic portal venous gas (HPVG) results from mesenteric ischemia and a wide variety of other causes. The primary factors that favour the development of this pathologic entity are intestinal wall alterations, bowel distension, and sepsis. Findings of HPVG during an ultrasound or computed tomography (CT) scan should be carefully evaluated in the context of the clinical picture. In the absence of features of bowel ischemia, the prognosis of patients with HPVG is usually good.

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Cited by 21 publications
(28 citation statements)
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“…A mechanical theory due to ischaemic bowel damage and a bacterial theory due to gas-forming organisms have been explained to be the two causes of HPVG 6 7. In this case, it was felt that gas-forming enteritis led to portal sepsis causing air within the hepatic portal venous system and the pneumatosis intestinalis.…”
Section: Discussionmentioning
confidence: 91%
“…A mechanical theory due to ischaemic bowel damage and a bacterial theory due to gas-forming organisms have been explained to be the two causes of HPVG 6 7. In this case, it was felt that gas-forming enteritis led to portal sepsis causing air within the hepatic portal venous system and the pneumatosis intestinalis.…”
Section: Discussionmentioning
confidence: 91%
“…In HPVG, air will extend within 2 cm of the liver capsule. Gas will move peripherally due to centrifugal flow of blood 5. In pneumobilia, air in the biliary tract remains central tothe portal hilum and does not extend to within 2 cm of the liver capsule 5.…”
Section: Discussionmentioning
confidence: 99%
“…Gas will move peripherally due to centrifugal flow of blood 5. In pneumobilia, air in the biliary tract remains central tothe portal hilum and does not extend to within 2 cm of the liver capsule 5. Gas moves in the biliary tree toward the porta hepatis because of the centripetal force of bile.…”
Section: Discussionmentioning
confidence: 99%
“…Ischaemic bowel is the primary aetiology in 70% of HPVG cases, with 91% relating to transmural necrosis. Mortality rate is 75–90%, which only increases when associated with pneumatosis intestinalis 1. The proposed mechanism for gas formation is not well understood but is thought to involve gas-forming organisms crossing the intestinal lumen, into the mesenteric veins, and accumulating in the portal venous system and hepatic parenchyma 2.…”
Section: Descriptionmentioning
confidence: 99%