Portal Venous Gas Detected by Computed Tomography: Is Surgery Imperative?

医学 外科 门静脉系统 外科病理学 放射科 胃肠病学 门脉高压 肝硬化
作者
David A. Iannitti,Shea C. Gregg,William W. Mayo-Smith,Richard J. Tomolonis,William G. Cioffi,Victor E. Pricolo
出处
期刊:Digestive Surgery [S. Karger AG]
卷期号:20 (4): 306-315 被引量:66
标识
DOI:10.1159/000071756
摘要

<i>Background: </i>Portal vein gas (PVG) has historically been associated with mortality rates of 75% or higher and mandatory abdominal exploration. The following study reassesses the clinical significance of gas in the portal venous system detected by computed tomography (CT) and reevaluates the need for surgical intervention in that setting. <i>Methods:</i> We performed a retrospective chart review of 26 patients presenting with gas in the portal venous system as imaged by CT between August 1, 1993 and April 8, 2001. Characteristics assessed included age, sex, clinical presentation and course, additional CT findings, diagnosis, surgical versus non-surgical management, surgical findings, pathologic correlation, and mortality. <i>Results</i>: Of the 26 patients who had gas in the portal venous system by CT, 11 underwent surgery to determine underlying pathology. Of those who underwent surgery, 8 survived to be discharged while 3 died (73% surgical survival). The survivors presented with gastrointestinal related signs/symptoms and were found at the time of surgery to have adhesions, non-surgically treated inflammation, unclear pathology, or resectable lesions. Those who died all demonstrated marked bowel ischemia intraoperatively. Among patients who did not undergo surgery, 9 survived and 6 died (60% nonsurgical survival). Those who survived presented either asymptomatically or with pathology including acute pancreatitis, recent hypotensive episode, uncomplicated diverticulitis, unresectable colon cancer, or infectious etiology. Those who died were poor surgical candidates or status postvascular procedure. The overall survival in patients with portal venous gas by CT was 65%. <i>Conclusion</i>: Portal venous gas on CT is associated with a wide range of pathologies that do not necessarily warrant surgical management. Clinical presentation should be correlated with the presence of PVG and other associated CT findings prior to deciding whether surgery should be performed.
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