{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,9]],"date-time":"2026-05-09T21:32:44Z","timestamp":1778362364847,"version":"3.51.4"},"reference-count":22,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2025,7,29]],"date-time":"2025-07-29T00:00:00Z","timestamp":1753747200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["ANZ Journal of Surgery"],"published-print":{"date-parts":[[2025,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>Investigations for diagnosis and assessment of colovesical fistula (CVF) include cross\u2010sectional imaging and endoscopic evaluation. Routine pre\u2010operative cystoscopy for CVF remains controversial. The primary aim of this study was to assess the incidence of bladder cancer and the need for routine cystoscopy during the investigation of CVF. Secondary aims were to describe the diagnosis and management of CVF and determine the value of post\u2010operative cystograms.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A retrospective observational study was performed at a tertiary referral hospital in New Zealand. Patients were identified from the clinical coding database between 1st January 2000 and 31st December 2021. Demographic, diagnostic, and peri\u2010operative data were collected.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The 88 patients with CVF were identified and included in the analysis. 73.8% of CVF were caused by diverticular disease, followed by colorectal cancer (14.8%), iatrogenic complication (5.7%), bladder cancer (3.4%) and gynecological cancer (2.3%). All patients with CVF due to bladder cancer had a known bladder cancer at the time of CVF diagnosis, and no occult cases of bladder cancer were found during or after surgical resection. The 18 patients had a post\u2010operative cystogram. One patient had a post\u2010operative bladder leak, which was routinely diagnosed on a planned early post\u2010operative cystogram.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>CVF due to bladder cancer is rare, and when it occurs, it is likely to be in those with a pre\u2010existing diagnosis of bladder cancer. Pre\u2010operative cystoscopy should be used selectively and is not routinely required. Post\u2010operative cystogram may be reserved for cases with large bladder defects or complex bladder repair.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/ans.70273","type":"journal-article","created":{"date-parts":[[2025,7,29]],"date-time":"2025-07-29T07:31:06Z","timestamp":1753774266000},"page":"2148-2154","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Colovesical Fistula Management and the Role of Cystoscopy: A Single Institution Experience"],"prefix":"10.1111","volume":"95","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3219-3938","authenticated-orcid":false,"given":"Samuel","family":"Pau","sequence":"first","affiliation":[{"name":"Department of General Surgery Te Whatu Ora Waikato  Hamilton New Zealand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aakaash","family":"Patel","sequence":"additional","affiliation":[{"name":"Department of General Medicine The Northern Hospital  Melbourne Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sarah","family":"Yap","sequence":"additional","affiliation":[{"name":"Department of General Surgery Te Whatu Ora Waikato  Hamilton New Zealand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Timothy","family":"Eglinton","sequence":"additional","affiliation":[{"name":"Department of Surgery Te Whatu Ora Waitaha Canterbury  Canterbury New Zealand"},{"name":"University of Otago  Christchurch New Zealand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3366-5629","authenticated-orcid":false,"given":"Jesse","family":"Fischer","sequence":"additional","affiliation":[{"name":"Department of General Surgery Te Whatu Ora Waikato  Hamilton New Zealand"},{"name":"Waikato Clinical Campus\u2014University of Auckland  Hamilton New Zealand"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,7,29]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijsu.2018.05.742"},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.1155\/2013\/617967"},{"key":"e_1_2_12_4_1","doi-asserted-by":"publisher","DOI":"10.23736\/S2724\u20106051.21.04750\u20109"},{"key":"e_1_2_12_5_1","volume-title":"Colovesical Fistula. 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