Laparoendoscopic single-site adrenalectomy versus multi-port laparoendoscopic adrenalectomy: A systemic review and meta-analysis

Jeng Cheng Wu, Po Chien Wu, Yi No Kang, Ting En Tai

Research output: Contribution to journalReview articlepeer-review

6 Citations (Scopus)


Background: To investigate the outcomes of laparoendoscopic single-site adrenalectomy (LESS-A) compared to multi-port laparoendoscopic adrenalectomy (m-LA). Methods: Studies comparing LESS-A with m-LA were identified from PubMed, Embase, and Cochrane Library before June 2020. Post-operative pain, resumption outcomes, and perioperative outcomes were analyzed. We conducted meta-analyses using the Mantel-Haenszel method with random-effects model. Subset analyses were conducted according to peritoneal and retroperitoneal approaches. A small study effect was illustrated using funnel plots and Egger's test. Results: One randomized controlled trial (RCT) and nineteen retrospective cohort studies involving 1554 patients were included for analyzed. Pooled analysis showed that LESS-A had significantly lower postoperative pain scores (MD −0.77, 95%CI −1.45 to −0.10) and less pain medication used (RR 0.74, 95%CI 0.60 to 0.91) compared to m-LA. Besides, LESS-A had significantly shorter hospital stays (MD −0.75, 95%CI −1.18 to −0.33), shorter duration of oral intake resumption (MD −0.33, 95%CI −0.60 to −0.06), and better cosmetic satisfaction (SMD 1.15, 95%CI 0.21 to −2.09). As for perioperative outcomes, LESS-A led to significant longer operative time (MD 13.43, 95%CI 4.08 to 22.77). No significant differences were observed in terms of the remaining perioperative outcomes. Conclusions: LESS-A is associated with less post-operative pain and quicker recovery duration. However, the longer operative time of LESS-A compared with m-LA is a drawback.

Original languageEnglish
Article number102388
Pages (from-to)102388
JournalAnnals of Medicine and Surgery
Publication statusPublished - Jun 2021


  • Adrenalectomy
  • Laparoendoscopic single-site
  • Multi-port laparoendoscopic

ASJC Scopus subject areas

  • Surgery


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