Detection Of Portal Venous Gas Research Articles

維持血液透析患者における, 腹痛を契機にCTにて門脈ガスが認められた2例

維持血液透析患者における, 腹痛を契機にCTにて門脈ガスが認められた2例

Detection of Portal Venous Gas by Ultrasonography after Liver Transplantation: A Possible Early Sign of Bacterial Translocation

This Portal venous gas (PVG) is usually associated with intra-abdominal catastrophe. However, there are some reports regarding benign causes of PVG, including the cases related to organ transplantation. We present 3 cases with PVG undergoing living donor liver transplantation (LDLT). All cases simultaneously demonstrated intra-abdominal complications and revealed a bacterial blood culture. We successfully managed all cases with immediate intervention for the possible occurrence of bacterial translocation. Our experience indicates that the detection of PVG by USG is an alarming finding, as a possible early sign of bacterial translocation after liver transplantation. When PVG is detected by USG, it is important to pay prompt attention to bacterial translocation.

Sonographic detection of portal venous gas: A reassessment of its prognostic significance

Sonographic detection of portal venous gas: A reassessment of its prognostic significance

Ultrasound in detection of portal venous gas in adults

Three patients with sonographically demonstrated portal venous gas are presented. Two patients were also studied using computed tomography (CT). Both techniques had superior sensitivity compared to plain radiographs. Scattered echogenic patches in the liver parenchyma, and centrifugal flow of echogenic patches in the portal vein and its branches, are typical ultrasound findings of portal vein gas. Evaluation of ultrasound findings and coordination with clinical history differentiate portal vein gas from biliary gas.

Sonographic detection of portal venous gas in infants with necrotizing enterocolitis.

A characteristic pattern of hepatic parenchymal and portal venous abnormalities was seen with sonography in 12 infants with necrotizing enterocolitis (NEC). In five cases these changes were seen before any radiographic abnormalities were observed. Sonography of 232 infants without NEC did not show these changes. The sonographic abnormalities are believed to be caused by small amounts of gas within the portal venous system and hepatic parenchyma. Because of the simplicity of the sonographic examination and the sensitivity and specificity of the findings, abdominal sonography may be of great value in the early evaluation of infants suspected of having NEC.