Sympathetic nervous system activity during laparoscopic and needlescopic cholecystectomy

Surgical Endoscopy
J SchmidtH Zirngibl

Abstract

It is difficult to quantify the impact of surgical trauma on patients with conventional measurement techniques. We report our preliminary experience with the determination of sympathetic nervous system activity during laparoscopic and needlescopic cholecystectomy. The electroconductivity of representative dermatomes (24 measuring points) was recorded prior, during, and after performing laparoscopic and needlescopic cholecystectomy on 40 consecutive patients according to the method of Nakatani (Ryodoraku). Fifty-five healthy adults served as a control group. Median age in the two groups was 52.4 and 54.1 years, respectively. Prior to the operation and on the 1st postoperative day, sympathetic nervous activity was equal in both groups. In the needlescopic patients, sympathetic activity was lesser at 30 min after the start of the laparoscopic procedure (p <0.05). The measurement of electroconductivity is a useful noninvasive technique for the evaluation of sympathetic nervous activity. As far as activation of sympathetic nervous system is concerned, the needlescopic technique was found to be superior.

Citations

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