| Summary: | Objective: To compare postoperative pain between conventional CO2
releasing method and additional suction
after laparoscopic cholecystectomy (LC) considering PCA Morphine consumption which makes pain measurement
more accurate than pain score.
Methods: Eligible patients with indication for LC were randomly assigned preoperatively either to have the
conventional CO2
releasing method, or an additional 60 seconds of suction after LC. We collected demographic
data, postoperative pain at 6, 12 and 24 hours, residual intraperitoneal pressure, operative time, intraoperative
Morphine amount and Morphine PCA amount in 24 hours. Pain evaluation by PCA amount was designed to get
more accurate primary outcomes.
Results: The patients were similarly distributed. Residual intraperitoneal pressure was statistically significantly
different. Morphine PCA amount in both groups were not significantly different. Postoperative pain level at 6,
12 and 24 hours as secondary outcomes showed that suction group seemed to have slightly higher pain score at 6
and 12 hours but at 24 hours post LC, pain in suction group tended to be a bit lower than in non-suction group.
Conclusion: Additional CO2
suction from this study does not reduce postoperative pain. However, with a larger
study population, it might help us to consider results in the intervention group better.
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