To compare the mean pain score through Visual Analogue Scale in patients undergoing laparoscopic cholecystectomy with and without intraperitoneal bupivacaine.
Study design: Randomized controlled trial.
Place and duration of study: General surgery department, Dr. Baba Saheb Ambedkar Medical College and Hospital, New Delhi from March 2017 till June 2017 for a period of three months.
Methodology: Total ninty eight patients were selected for the study. Patients were admitted through OPD. Two were exempted from the study. Both groups had 49 patients. Group A patients received 20 ml of 0.5% of intraperitoneal bupivacaine while Group B patients did not receive intraperitoneal bupivacaine. The anesthetic technique was standardized for the two groups. The degree of postoperative pain was assessed using Visual Analogue Scale at 4,8,12 and 24 hours after the surgery. The results were analyzed on SPSS version 18.
Results: The mean pain scores were lower in group A than in group B at rest. Consumption of analgesics was also lower in patients of group A(28%) while it was 71% in patients of group B. The incidence of abdominal pain was significantly lower in patients receiving intraperitoneal bupivacaine.
Mean VAS pain scores from 4-24 hrs postoperatively of group A was 0.90± 0.51 with 95% confidence interval while in group B it was 0.96±0.90 with 95% confidence interval.
Conclusion: Instillation of 20 ml of 0.5%of intraperitoneal bupivacaine after removal of gall bladder in laparoscopic cholecystectomy offers good analgesia.