• Medicina · Oct 2018

    Randomized Controlled Trial

    The Efficacy of Ultrasound-Guided Paravertebral Block in Laparoscopic Cholecystectomy.

    • Gülçin Aydin and Oktay Aydin.
    • Department of Anesthesiology and Reanimation, Kırıkkale University School of Medicine, 71450-Kirikkale, Turkey. drgulcinaydin@yahoo.com.
    • Medicina (Kaunas). 2018 Oct 23; 54 (5).

    AbstractBackground and objectives: Despite its wide use in thoracic procedures, to date, few studies have assessed the effectiveness of paravertebral block (PVB) in laparoscopic cholecystectomy (LC) in an adult population. In these studies, PVB was performed bilaterally using nerve stimulator guidance. To the best of our knowledge, the effectiveness of unilateral preoperative and postoperative ultrasound-guided PVB has not been evaluated in patients undergoing elective LC. The aim of this study was to evaluate the efficacy of single-dose unilateral paravertebral block (PVB) in patients undergoing laparoscopic cholecystectomy (LC) under general anesthesia. Materials and Methods: Patients undergoing LC were randomly separated into control, preoperative block, and postoperative block groups. PVB was performed unilaterally using bupivacaine under ultrasound guidance. Postoperative pain within the first 24 h, side effects, intraoperative opioid and postoperative analgesic requirements were noted. Evaluation was made of a total of 90 patients (25 males, 65 females) with a mean age of 45.78 ± 14.0 years (range, 19⁻74 years). Results: Opioid and additional analgesic needs and nausea/vomiting rates were significantly reduced in the preoperative block group compared to the other groups (p < 0.05). Visual Analog Scale (VAS) scores were significantly lower in the preoperative and postoperative block groups compared to the control group (p < 0.05 for all). When the VAS scores were compared between the preoperative and postoperative block groups, a significant difference in favor of the preoperative group was observed in terms of the zero minute-, 1st and 2nd h assessments (p < 0.05 for all). Conclusions: Ultrasound-guided PVB is a useful and safe approach for pain management during and after LC. Preoperative block can also reduce the rate of requirement for intraoperative opioid and postoperative analgesia.

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