Infiltración con bupivacaína de la incisión de Pfannenstiel para la analgesia pos cesárea

Abstract

SUMMARY Aim: To compare the analgesic effectiveness of Pfannenstiel incision infiltration with bupivacaine over a placebo for post-operative analgesia in cesarean section in pregnants attending at the Hospital Dr. Adolfo Pons in Maracaibo, Zulia state, Venezuela. Methods: A comparative and applied research, with quasiexperimental, case-control, contemporary and field design, which included 60 pregnant women scheduled for elective cesarean section, divided randomly into two groups matched for Pfannestiel incision infiltration with 30 mL Bupivacaine 0.25% (75 mg) or saline solution. Pain intensity was assessed by visual analog scale (VAS). Results: In terms of pain intensity at rest and in motion, were found highly significant differences in favor of the group receiving the incisional infiltration with bupivacaine during the first six hours after surgery (p<0.001); not later than 8 hours after surgery where in all measurements, were found no significant differences between the two tested groups. Similarly, these patients had higher pain free time, surpassing the 4 hours (251 ± 14 minutes vs. 220 ± 11 minutes; p<0.001), lower analgesic requirements (199.37 ± 0.15