JOURNAL ARTICLE
META-ANALYSIS
REVIEW
SYSTEMATIC REVIEW
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Postoperative pain management after esophagectomy: a systematic review and meta-analysis.

Effective pain management after esophagectomy is essential for patient comfort, early recovery, low surgical morbidity, and short hospitalization. This systematic review and meta-analysis aims to determine the best pain management modality focusing on the balance between benefits and risks. Medline, Embase, and the Cochrane library were systematically searched to identify all studies investigating different pain management modalities after esophagectomy in relation to primary outcomes (postoperative pain scores at 24 and 48 hours, technical failure, and opioid consumption), and secondary outcomes (pulmonary complications, nausea and vomiting, hypotension, urinary retention, and length of hospital stay). Ten studies investigating systemic, epidural, intrathecal, intrapleural and paravertebral analgesia involving 891 patients following esophagectomy were included. No significant differences were found in postoperative pain scores between systemic and epidural analgesia at 24 (mean difference (MD) 0.89; 95% confidence interval (CI) -0.47-2.24) and 48 hours (MD 0.15; 95%CI -0.60-0.91), nor described for systemic and other regional analgesia. Also, no significant differences in pulmonary complication rates were identified between systemic and epidural analgesia (relative risk (RR) 1.69; 95%CI 0.86-3.29), or between systemic and paravertebral analgesia (RR 1.49; 95%CI 0.31-7.12). Technical failure ranged from 17% to 22% for epidural analgesia. Sample sizes were too small to draw inferences on opioid consumption, the risk of nausea and vomiting, hypotension, urinary retention, and length of hospital stay when comparing the different pain management modalities including systemic, epidural, intrathecal, intrapleural, and paravertebral analgesia. This systematic review and meta-analysis shows no differences in postoperative pain scores or pulmonary complications after esophagectomy between systemic and epidural analgesia, and between systemic and paravertebral analgesia. Further randomized controlled trails are warranted to determine the optimal pain management modality after esophagectomy.

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