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Oral pregabalin is effective as preemptive analgesia in abdominal hysterectomy—A randomized controlled trial

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Postoperative pain is one of the main negative symptoms resulting from surgery and the use of new methods to control this symptom is of ever‐increasing relevance. Opioid‐sparing strategies, such as… Click to show full abstract

Postoperative pain is one of the main negative symptoms resulting from surgery and the use of new methods to control this symptom is of ever‐increasing relevance. Opioid‐sparing strategies, such as multimodal analgesia, are trends in this scenario. Pregabalin is a well‐established treatment for neuropathic pain; however, it is still controversial in the surgical context for postoperative analgesia. This study investigated the effect of pregabalin on postoperative analgesia in patients undergoing abdominal hysterectomy. It is a prospective, randomised, double‐blind, placebo‐controlled clinical trial. Female patients undergoing abdominal hysterectomy were randomised to use pregabalin (group P1), 300 mg orally 2 h before surgery, or identical placebo pills (group P0). The main outcome includes the postoperative pain index by visual analogue scale (VAS) and McGill's pain questionnaire. Secondary outcomes include opioid consumption and the presence of adverse effects. A value of p < 0.05 was used to reject type I error. Fifty‐five patients were randomised amongst the groups. Patients in group P1 had lower pain rates by VAS scale, both at rest and in active motion, than group P0. In McGill's questionnaire, patients from group P1 also had lower pain rates (12 × 28.5). There was approximately twice as much opioid consumption amongst patients in group P0. Regarding side effects, there was a difference between the two groups only for dizziness, being more incident in group P1. This study suggests that pregabalin is an important adjuvant drug in treating postoperative pain in patients with abdominal hysterectomy.

Keywords: analgesia; group; pregabalin; pain; abdominal hysterectomy

Journal Title: Clinical and Experimental Pharmacology and Physiology
Year Published: 2022

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