Trial reportLocal and regional anesthesia2025
Could Wound Instillation Provide an Efficient Analgesia Comparable to That Provided by PECS-II Block for Modified Radical Mastectomy Using Ketamine-Bupivacaine Combination? A Pilot Study.
Trial report in Local and regional anesthesia, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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3 authors.
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Abstract
Background and Aim: In the light of the abundance of various analgesic methods available for analgesia following modified radical mastectomy (MRM) (pharmacological or interventional), we aimed to try a very simple technique using a drug combination (ketamine-bupivacaine) through wound instillation and to compare it to the reputable PECS-II block using the same drug combination. We hypothesized that, with this drug combination, local instillation may achieve a comparable, long lasting, analgesia for almost 48 hours, with less costly, and simple method. Patients and Methods: Sixty women scheduled to undergo MRM participated in this study. Patients were randomized to have either; ultrasound-guided, modified PECS block (PECS group), or instillation of analgesics into the surgical wound (local instillation group). In both groups, we used 1 mg/kg ketamine HCL plus 0.25% bupivacaine HCL in a 30 mL volume. Total consumption of rescue morphine, time to 1 Results: Total consumption of rescue morphine, first analgesic request, pain scores, showed no statistically significant differences in both groups; the local instillation procedure required a statistically significant shorter time to perform than the PECS procedure. None of the groups showed significant differences in the incidence of adverse effects. Conclusion: Local wound instillation provided a comparable analgesia to PECS-II block following modified radical mastectomy. Ketamine-bupivacaine combination prolonged analgesia for almost 2 days.
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