Impact of bupivacaine injection to trocar sites on postopera
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Laparoscopic surgery has numerous advantages over open surgery in view of postoperative pain. In this context, to elevate its benefits and patient satisfaction, different pain management interventions have been used so far. This study aimed to evaluate the effect of bupivacaine injection to trocar sites following laparoscopic hysterectomy for the management of postoperative pain.

In this study, patients were into two groups (56 cases; 52 controls). A single injection of bupivacaine (0.5%, 5mg/ml) was introduced to trocar sites under subcutaneous tissue at a dose of 4ml for the umbilicus and 2ml for each 5-mm ancillary trocar site in the study group. No bupivacaine was administered to the control group. The number of postoperative rescue doses of analgesics was found to be lower in the study group compared to the control group . The postoperative NRS pain scores were also found to be lower in the study group compared to the control group. The mean duration of surgery and uterus removal, as well as the estimated blood loss, were not significantly different between the two groups.

The present study suggests that bupivacaine injection to trocar sites is an effective and safe method for reducing pain following laparoscopic hysterectomy.

Source: https://www.ejog.org/article/S0301-2115(20)30447-4/fulltext?rss=yes
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