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Effects of Transverse Abdominis Plane (TAP) Block on the MACBAR of Sevoflurane in Gynecologic Patients with
PingPing Jiang1, JingTao Tang2, Min Zhang3
1Department of Anesthesia, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, People's Republic of China.
Purpose:
This study aimed to observe the effect of bilateral transverse abdominis plane (TAP) block on the MACBAR of sevoflurane in gynecological patients with laparoscopic pneumoperitoneal stimulation.
Patients And Methods:
Fifty patients who underwent laparoscopic surgery were randomly assigned to either the control group (n= 25) or the TAP block group (n= 25). Patients in the TAP block group were subjected to a bilateral transversal abdominal muscle plane block with 0.33% ropivacaine (20 mL on each side) guided by ultrasound. The control group received an equal volume of normal saline. The MACBAR of sevoflurane in each group was determined using a sequential allocation technique.
Results:
The MACBAR of sevoflurane in the TAP block group was significantly lower than that in the control group (4.20% [95% confidence interval {CI}, 4.02%-4.38%] vs 5.03% [95% CI, 4.89%-5.18%]).
Conclusion:
Bilateral TAP block can reduce the MACBAR of sevoflurane in gynecological patients with pneumoperitoneum stimulation.
Trial Registration Number:
ChiCTR2100046517. The trial is publicly available and registered at www.chictr.org.cn on May 18, 2021.
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