Table 1 Literature search strategy

PUBMED

("transanal tube"[Title/Abstract] OR "anal tube"[Title/Abstract] OR "catheter drainage"[Title/Abstract] OR "transanal drainage tube"[Title/Abstract] OR "transanal tube"[Title/Abstract] OR "transanal decompression tube"[Title/Abstract] OR "transanal drainage tubes"[Title/Abstract] OR "transanal drainage"[Title/Abstract] OR "rectal tube drainage"[Title/Abstract] OR "transanal indwelling"[Title/Abstract] OR "transanal stent"[Title/Abstract] OR "rectal tube"[Title/Abstract]) AND ("Rectal Neoplasms"[MeSH Terms] OR ("Rectal Neoplasms"[Title/Abstract] OR "rectum tumor"[Title/Abstract] OR "neoplasm rectal"[Title/Abstract] OR "rectal neoplasm"[Title/Abstract] OR "rectum neoplasms"[Title/Abstract] OR "neoplasm rectum"[Title/Abstract] OR "rectum neoplasm"[Title/Abstract] OR "rectal tumors"[Title/Abstract] OR "rectal tumor"[Title/Abstract] OR "tumor rectal"[Title/Abstract] OR "neoplasms rectal"[Title/Abstract] OR "cancer of rectum"[Title/Abstract] OR "rectum cancers"[Title/Abstract] OR "rectal cancer"[Title/Abstract] OR "cancer rectal"[Title/Abstract] OR "rectal cancers"[Title/Abstract] OR "rectum cancer"[Title/Abstract] OR "cancer rectum"[Title/Abstract] OR "cancer of the rectum"[Title/Abstract])) AND ("Anastomotic Leak"[MeSH Terms] OR ("Anastomotic Leak"[Title/Abstract] OR "anastomosis leakage"[Title/Abstract] OR "anastomotic leaks"[Title/Abstract] OR "leak anastomotic"[Title/Abstract] OR "leaks anastomotic"[Title/Abstract] OR "anastomotic leakage"[Title/Abstract] OR "anastomotic leakages"[Title/Abstract] OR "leakage anastomotic"[Title/Abstract] OR "leakages anastomotic"[Title/Abstract])) AND ("Prospective Studies"[MeSH Terms] OR "Prospective Studies"[Title/Abstract] OR "prospective study"[Title/Abstract] OR "studies prospective"[Title/Abstract] OR "study prospective"[Title/Abstract])

10

EMBASE

('rectum tumor'/exp OR 'Rectum tumor'/:ab,ti OR 'Rectal Neoplasms'/:ab,ti OR 'Neoplasm, Rectal'/:ab,ti OR 'Rectal Neoplasm'/:ab,ti OR 'Rectum Neoplasms'/:ab,ti OR 'Neoplasm, Rectum'/:ab,ti OR 'Rectum Neoplasm'/:ab,ti OR 'Rectal Tumors'/:ab,ti OR 'Rectal Tumor'/:ab,ti OR 'Tumor, Rectal'/:ab,ti OR 'Neoplasms, Rectal'/:ab,ti OR 'Cancer of Rectum'/:ab,ti OR 'Rectum Cancers'/:ab,ti OR 'Rectal Cancer'/:ab,ti OR 'Cancer, Rectal'/:ab,ti OR 'Rectal Cancers'/:ab,ti OR 'Rectum Cancer'/:ab,ti OR 'Cancer, Rectum'/:ab,ti OR 'Cancer of the Rectum'/:ab,ti) AND ('transanal tube'/:ab,ti OR 'anal tube'/:ab,ti OR 'catheter drainage'/:ab,ti OR 'Transanal drainage tube'/:ab,ti OR 'transanal tube'/:ab,ti OR 'Transanal decompression tube'/:ab,ti OR 'Transanal drainage tubes'/:ab,ti OR 'Transanal drainage'/:ab,ti OR 'rectal tube drainage'/:ab,ti OR 'Transanal indwelling'/:ab,ti OR 'Transanal stent'/:ab,ti OR 'Rectal tube'/:ab,ti) AND ('Anastomosis Leakage'/exp OR 'Anastomosis Leakage'/:ab,ti OR 'Anastomotic Leak'/:ab,ti OR 'Anastomotic Leaks'/:ab,ti OR 'Leak, Anastomotic'/:ab,ti OR 'Leaks, Anastomotic'/:ab,ti OR 'Anastomotic Leakage'/:ab,ti OR 'Anastomotic Leakages'/:ab,ti OR 'Leakage, Anastomotic'/:ab,ti OR 'Leakages, Anastomotic'/:ab,ti) AND ('Prospective Study'/exp OR 'Prospective Study'/:ab,ti OR 'Prospective Studies'/:ab,ti OR 'Studies, Prospective'/:ab,ti OR 'Study, Prospective'/:ab,ti)

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COCHRANE

LIBRARY

("Rectal Neoplasms"[Mesh descriptor] OR "Rectal Neoplasms":ti,ab,kw OR "Rectum tumor":ti,ab,kw OR "Neoplasm, Rectal":ti,ab,kw OR "Rectal Neoplasm":ti,ab,kw OR "Rectum Neoplasms":ti,ab,kw OR "Neoplasm, Rectum":ti,ab,kw OR "Rectum Neoplasm":ti,ab,kw OR "Rectal Tumors":ti,ab,kw OR "Rectal Tumor":ti,ab,kw OR "Tumor, Rectal":ti,ab,kw OR "Neoplasms, Rectal":ti,ab,kw OR "Cancer of Rectum":ti,ab,kw OR "Rectum Cancers":ti,ab,kw OR "Rectal Cancer":ti,ab,kw OR "Cancer, Rectal":ti,ab,kw OR "Rectal Cancers":ti,ab,kw OR "Rectum Cancer":ti,ab,kw OR "Cancer, Rectum":ti,ab,kw OR "Cancer of the Rectum":ti,ab,kw) AND ("transanal tube":ti,ab,kw OR "anal tube":ti,ab,kw OR "catheter drainage":ti,ab,kw OR "Transanal drainage tube":ti,ab,kw OR "transanal tube":ti,ab,kw OR "Transanal decompression tube":ti,ab,kw OR "Transanal drainage tubes":ti,ab,kw OR "Transanal drainage":ti,ab,kw OR "rectal tube drainage":ti,ab,kw OR "Transanal indwelling":ti,ab,kw OR "Transanal stent":ti,ab,kw OR "Rectal tube":ti,ab,kw) AND ("Anastomotic Leak"[Mesh descriptor] OR "Anastomotic Leak":ti,ab,kw OR "Anastomosis Leakage":ti,ab,kw OR "Anastomotic Leaks":ti,ab,kw OR "Leak, Anastomotic":ti,ab,kw OR "Leaks, Anastomotic":ti,ab,kw OR "Anastomotic Leakage":ti,ab,kw OR "Anastomotic Leakages":ti,ab,kw OR "Leakage, Anastomotic":ti,ab,kw OR "Leakages, Anastomotic":ti,ab,kw) AND ("Prospective Study"[Mesh descriptor] OR "Prospective Studies":ti,ab,kw OR "Prospective Study":ti,ab,kw OR "Studies, Prospective":ti,ab,kw OR "Study, Prospective":ti,ab,kw)

21

WEB OF SCIENCE

("Rectal Neoplasms":TS OR "Rectum tumor":TS OR "Neoplasm, Rectal":TS OR "Rectal Neoplasm":TS OR "Rectum Neoplasms":TS OR "Neoplasm, Rectum":TS OR "Rectum Neoplasm":TS OR "Rectal Tumors":TS OR "Rectal Tumor":TS OR "Tumor, Rectal":TS OR "Neoplasms, Rectal":TS OR "Cancer of Rectum":TS OR "Rectum Cancers":TS OR "Rectal Cancer":TS OR "Cancer, Rectal":TS OR "Rectal Cancers":TS OR "Rectum Cancer":TS OR "Cancer, Rectum":TS OR "Cancer of the Rectum":TS) AND ("transanal tube":TS OR "anal tube":TS OR "catheter drainage":TS OR "Transanal drainage tube":TS OR "transanal tube":TS OR "Transanal decompression tube":TS OR "Transanal drainage tubes":TS OR "Transanal drainage":TS OR "rectal tube drainage":TS OR "Transanal indwelling":TS OR "Transanal stent":TS OR "Rectal tube":TS) AND ("Anastomotic Leak":TS OR "Anastomosis Leakage":TS OR "Anastomotic Leaks":TS OR "Leak, Anastomotic":TS OR "Leaks, Anastomotic":TS OR "Anastomotic Leakage":TS OR "Anastomotic Leakages":TS OR "Leakage, Anastomotic":TS OR "Leakages, Anastomotic":TS) AND ("Prospective Studies":TS OR "Prospective Study":TS OR "Studies, Prospective":TS OR "Study, Prospective":TS)

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