Abstract
Identifying patients at risk for developing side effects secondary to intravenous patient-controlled analgesia (IV PCA) and making the necessary adjustments in pain management are crucial. We investigated the risk factors of discontinuing IV PCA due to side effects following general surgery; adult patients who received IV PCA after general surgery (2020–2022) were included. Data on postoperative pain intensity, PCA pain relief, side effects, continuity of PCA use, and PCA pump settings were collected from the records of the acute pain management team. The primary outcome was identifying the risk factors associated with PCA discontinuation due to side effects. Of the 8745 patients included, 94.95% used opioid-containing PCA, and 5.05% used non-steroidal anti-inflammatory drug (NSAID)-only PCA; 600 patients discontinued PCA due to side effects. Female sex (adjusted odds ratio [aOR] 3.31, 95% confidence interval [CI] 2.74–4.01), hepato-pancreatic-biliary surgery (aOR 1.43, 95% CI 1.06–1.94) and background infusion of PCA (aOR 1.42, 95% CI 1.04, 1.94) were associated with an increased likelihood of PCA discontinuation. Preoperative opioid use (aOR 0.49, 95% CI 0.28–0.85) was linked with a decreased likelihood of PCA discontinuation. These findings highlight the importance of individualized pain management, considering patient characteristics and surgical procedures.
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