Disasters that develop in the liver due to hydatid cyst: a case report.

Hilar cavernous transformation is the formation of venous structures rich in collateral around the portal vein. Portal vein thrombosis is a rare entity. Although there are many reasons for its etiology, few cases have been reported secondary to hydatid cysts in the liver. Here, we present a 24-year-old patient with complaints of abdominal pain and swelling. Her CT and MRI scans show cholelithiasis with portal vein thrombosis and hilar cavernous transformation due to giant hydatid cyst compression in the lateral liver sector.

La transformación cavernosa hiliar es la formación de estructuras venosas ricas en colaterales alrededor de la vena porta. La trombosis de la vena porta es una afección poco frecuente. Aunque existen muchas razones en su etiología, se han descrito pocos casos secundarios a quiste hidatídico en el hígado. Aquí se presenta el caso de una paciente de 24 años con quejas de dolor abdominal e hinchazón. La tomografía computarizada y la resonancia magnética mostraron colelitiasis con trombosis de la vena porta y transformación cavernosa hiliar por compresión del quiste hidatídico gigante en el sector lateral del hígado.

The comparison of the oxidative stress effects of different gases and intra-abdominal pressures in an experimental rat model.

BACKGROUND: Laparoscopy is used for almost all types of abdominal surgery because of its advantages, which include shorter postoperative hospital stay. However, pneumoperitoneum used to facilitate the visual field has severe metabolic, hemodynamic, and inflammatory consequences depending on the pressure level and the gas used. Helium (He), an inert gas, has been recommended for establishment of pneumoperitoneum since it does not alter the blood pH and PCO(2). Yet the oxidative response after He insufflation remains unknown. This study was undertaken to compare the levels of free radical production and antioxidant status following He and CO(2) pneumoperitoneum at different intra-abdominal pressure values. MATERIALS AND METHODS: The subjects were 40 Sprague-Dawley male rats randomized to the following groups: He 10 (n = 8) was subjected to He pneumoperitoneum at 10 mm Hg for 60 minutes; He 15 (n = 8) was subjected to He pneumoperitoneum at 15 mm Hg for 60 minutes; CO(2) 10 (n = 8) was subjected to CO(2) pneumoperitoneum at 10 mm Hg for 60 minutes; CO(2) 15 (n = 8) was subjected to CO(2) pneumoperitoneum at 15 mm Hg for 60 minutes; and Control (n = 8) was subjected to sham operation without pneumoperitoneum. At the end of the experiment blood samples were obtained and plasma malondialdehyde, carbonyl, and sulphydryl levels were measured. RESULTS: CO(2) pneumoperitoneum produced higher malondialdehyde and carbonyl responses and sulphydryl consumption compared to He, especially at 15 mm Hg (P = 0.01, P = 0.01, and P = 0.059, respectively). CONCLUSION: Helium seems to limit the postoperative oxidative response following laparoscopy.