Alterations in Plasma Oxidative Stress Markers After Laparoscopic Operations of the Upper and Lower Abdomen

Autor: Alexandros D. Tselepis, Glantzounis G, I. Tsimaris, Evangelos C. Tsimoyiannis, C. Thomas, Dimitrios Galaris
Rok vydání: 2005
Předmět:
Zdroj: Angiology. 56:459-465
ISSN: 1940-1574
0003-3197
DOI: 10.1177/000331970505600414
Popis: The patient’s position during laparoscopic surgery can have a clinically relevant effect on lower limb and splanchnic circulation; this factor has not yet been investigated with respect to oxidative stress markers. In order to assess this effect, a prospective clinical trial was designed wherein 2 groups of patients were studied. In group A, 15 patients underwent upper abdominal nonhepatobiliary operations (13 modified Nissen fundoplications and 2 Taylor vagotomies) in the head-up position. In group B, 15 patients underwent lower abdominal operations (10 laparoscopic colectomies and 5 inguinal hernia repairs) in the head-down position. The pneumoperitoneum was maintained at 14 mm Hg in all cases. Plasma concentrations of thiobarbituric-acid reactive substances (TBARS), a marker of lipid peroxidation, plasma total antioxidant status (TAS), and serum uric acid concentrations were measured preoperatively, 5 minutes after deflation of the pneumoperitoneum, and 24 hours postoperatively. Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) serum activities were measured preoperatively and 24 hours postoperatively. In group A, there was a significant increase in TBARS levels (p
Databáze: OpenAIRE