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Thirty\u2010one cohorts met our criteria (1693 patients). The analysis was based mostly on retrospective studies. The summary estimate of the reduction of Apnea\u2013Hypoxia Index (AHI) was 24.25 abnormal events per hour (95% CI: 21.69\u201326.81) and reduction of Epworth Sleepiness Scale (ESS) was 7.92 (95% CI: 6.50\u20139.34). The summary estimate of increase in lowest O<jats:sub>2<\/jats:sub> saturation was 6.04% (95% CI: 3.05\u20139.03). The success rate of TORS BOT reduction, either alone or combined with other procedures, was 69% (95% CI: 64\u201379). The majority of studies reported low level of evidence but suggested that TORS BOT reduction may be a safe procedure associated with improvement of AHI, ESS, and lowest O<jats:sub>2<\/jats:sub> saturation.<\/jats:p>","DOI":"10.1002\/hed.26702","type":"journal-article","created":{"date-parts":[[2021,4,16]],"date-time":"2021-04-16T23:55:23Z","timestamp":1618617323000},"page":"2216-2239","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":42,"title":["Surgical, clinical, and functional outcomes of transoral robotic surgery used in sleep surgery for obstructive sleep apnea syndrome: A systematic review and meta\u2010analysis"],"prefix":"10.1002","volume":"43","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0845-0845","authenticated-orcid":false,"given":"Jerome R.","family":"Lechien","sequence":"first","affiliation":[{"name":"Research Committee Robotic Surgery Group of Young\u2010Otolaryngologists of the International Federations of 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