Lewis C P, Murthy S, Webber S M, Chokhavatia S
New York Medical College at Valhalla Lincoln Medical and Mental Health Center, Bronx, USA.
Am J Gastroenterol. 1999 Jan;94(1):280. doi: 10.1111/j.1572-0241.1999.00725.x.
The formation of portosystemic collaterals occurs frequently in portal hypertension; however, the finding of a patent or recanalized umbilical vein has more often been incidental, with only six cases of recanalized umbilical veins or patent paraumbilical veins demonstrated with clinical significance This is only the second documented case of an umbilical vein with external hemorrhage significant enough to cause hemodynamic instability. It raises important questions with regard to prognostic indices for rebleeding at the umbilicus as well as at other, more common, portosystemic collateral sites.
门体侧支循环的形成在门静脉高压症中很常见；然而，脐静脉通畅或再通的情况更多是偶然发现，仅有6例再通的脐静脉或通畅的脐旁静脉具有临床意义。这是第二例有文献记载的脐静脉外部出血严重到足以导致血流动力学不稳定的病例。它引发了关于脐部以及其他更常见的门体侧支部位再出血预后指标的重要问题。
