The role of liver resection in the management of severe blunt liver trauma.

BACKGROUND: The management of hepatic trauma has a historical progress from mandatory operation with selective non-operative treatment, to non-operative treatment with selective operation. Liver resection (LR) seems to have a minimal role in the management of liver injury. However, surgical treatment becomes the only life-saving treatment in cases with severe liver trauma. METHODS: It is a retrospective presentation of five cases with severe blunt liver injury whose were admitted at our center during the 8-year period. RESULTS: The median age of patients was 30.8 (23-43). The most frequent mechanism of injury was pedestrian struck (60%). Two of five cases were transferred to our hospital from rural state hospitals after initial attempt to achieving hemostasis. The majority of liver injury was grade V (80%). The right lobe of the liver was injured in different extensions. Major vascular injury was associated to liver injury in four of five cases. The right hepatectomy (n=1), resectional debridement of segments 5, 6, and 7 (n=1), posterior sectorectomy (n=2), and segment 7 resection (n=1) were performed for hemostasis. Vascular injuries in the junction of inferior vena cava and right hepatic vein (n=1), the anterior surface of the right hepatic vein (n=1), the junction of segment 7 hepatic vein and right hepatic vein (n=1), the main portal vein (n=1), and the right renal vein (n=1) were repaired. Median operation time was 162 min (120-180 min). Operative mortality was 20%. Reoperation was needed in three of four survived cases. In-hospital complications were observed in two of four survived cases. Median stay in intensive care unit and hospital was 12.4 days (1-48 days) and 28.2 days (1-65 days), respectively. CONCLUSION: When a severe liver injury is unresponsive to packing, the surgeon must always keep in mind that extensive maneuvers for vascular control and LR are required for bleeding control.

Effects of carbon dioxide pneumoperitoneum on exocrine and endocrine functions, and oxidative state of rat pancreas.

We investigated the effects of increased intra-abdominal pressure during laparoscopy on the endocrine and exocrine functions, oxidative stress and histopathology of the pancreas in rats. We established three experimental groups of eight animals. Group 1 was the untreated control. Forth other two groups, pneumoperitoneum with CO2 was established for 60 min at 6 mm Hg for group 2 and 12 mm Hg for group 3; groups 2 and 3 animals were allowed to re-perfuse for 30 min. Amylase, glucagon and insulin levels were analyzed in blood samples and insulin:glucagon ratio was calculated. Histopathology and malondialdehyde assay were performed on pancreatic tissue samples. Histological damage scores for vasocongestion were increased significantly in groups 2 and 3 compared to group 1. Histological damage scores for inflammatory cell infiltration were increased significantly in group 3 compared to group 1. Malondialdehyde levels were increased significantly in group 3 compared to group 1. We found no significant differences among groups for serum amylase levels or histological damage scores for hemorrhage. Insulin and glucagon levels, and the insulin:glucagon ratio was increased significantly in group 3 compared to groups 1 and 2. We found that in rats routine laparoscopy caused increased serum insulin and glucagon levels, and histopathological changes that indicated ischemia-reperfusion injury to the pancreas.