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Published in: Langenbeck's Archives of Surgery 6/2010

01-08-2010 | Original Article

Effects of carbon dioxide pneumoperitoneum on hepatic function in obstructive jaundice: an experimental study in a rat model

Authors: Erdal Birol Bostanci, Sinan Yol, Zafer Teke, Cuneyt Kayaalp, Zisan Sakaogullari, Ummuhani Ozel Turkcu, Ayse Bilgihan, Musa Akoglu

Published in: Langenbeck's Archives of Surgery | Issue 6/2010

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Abstract

Background and aims

The physiology of the patient during laparoscopy differs from that of open surgery. Both pneumoperitoneum and obstructive jaundice impair the hepatic function, but the combined insult has not been previously examined. In this study, we aimed to investigate the effects of carbon dioxide (CO2) pneumoperitoneum on hepatic function in a rat model of obstructive jaundice.

Methods

Forty-four male Sprague–Dawley rats were divided into four groups: group 1 (n = 10), sham-operated group; group 2 (n = 12), obstructive jaundice group; group 3 (n = 10), CO2 pneumoperitoneum group; and group 4 (n = 12), obstructive jaundice and CO2 pneumoperitoneum group. Common bile duct was ligated and divided in the obstructive jaundice groups. After 6 days, a 12-mmHg pneumoperitoneum was induced, maintained for 60 min, and released for 120 min. Blood samples were drawn for the measurement of white blood cell and platelet counts, serum liver enzymes (aspartate aminotransferase [AST], alanine aminotransferase [ALT], total bilirubin). Tissue samples were obtained for analyses of malondialdehyde (MDA), glutathione (GSH), and superoxide dismutase (SOD) levels. We evaluated the degree of liver injury on a grading scale from 0 to 4, histopathologically.

Results

Pneumoperitoneum after biliary obstruction resulted in an increase in AST and ALT levels and a decrease in white blood cell and platelet counts. However, changes in liver tissue MDA, GSH, and SOD levels did not correlate with the changes in AST and ALT levels and white blood cell and platelet counts. After sham operation with pneumoperitoneum, the GSH levels in liver homogenate were significantly decreased in the group 3 when compared to the group 2. On the other hand, obstructive jaundice itself caused significant reduction in the SOD activity of liver homogenate in comparison to the group 3. Histopathologically, sinusoidal congestion and vacuolization were more severe in the group 3.

Conclusions

Alterations in hepatic function occur in pneumoperitoneum applied jaundiced subjects. However, there were no statistically significant differences between the groups 2 and 4 with regard to white blood cell and platelet counts, serum liver enzymes including AST, ALT, and total bilirubin values, MDA and GSH levels and SOD activity of liver homogenate, and histologic damage. These results indicate that there is no additional risk on liver function associated with pneumoperitoneum performed in obstructive jaundice.
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Metadata
Title
Effects of carbon dioxide pneumoperitoneum on hepatic function in obstructive jaundice: an experimental study in a rat model
Authors
Erdal Birol Bostanci
Sinan Yol
Zafer Teke
Cuneyt Kayaalp
Zisan Sakaogullari
Ummuhani Ozel Turkcu
Ayse Bilgihan
Musa Akoglu
Publication date
01-08-2010
Publisher
Springer-Verlag
Published in
Langenbeck's Archives of Surgery / Issue 6/2010
Print ISSN: 1435-2443
Electronic ISSN: 1435-2451
DOI
https://doi.org/10.1007/s00423-009-0577-6

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