{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,23]],"date-time":"2026-08-23T16:16:56Z","timestamp":1787501816072,"version":"build-2736575974"},"reference-count":21,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2021,9,6]],"date-time":"2021-09-06T00:00:00Z","timestamp":1630886400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Portomesenteric vein thrombosis (PMVT) is a rare post-operative complication of bariatric procedures, occurring in between 0.3% and 1% of cases. A structured questionnaire consisting of 27 items was available online to members of the International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO) to investigate the occurrence of PMVT. A total of 89 bariatric surgeons from 61 countries participated. Twenty-six (29.21%) reported at least one case of PMVT (46.15% males; 53.84% females). The surgery most associated with PMVT occurrence was sleeve gastrectomy (84.6%), followed by Roux-en-Y gastric bypass (RYGB) (7.69%), and laparoscopic adjustable gastric banding (LAGB) (7.69%). The time gap between surgery and PMVT was 19.28 \u00b1 8.72 days. The predominant symptom was abdominal pain in 96.15% of patients, followed by fever in 26.9%. Complete occlusion of the portal vein was reported in 34.6% of cases, with involvement of the portal system in 69%, extension to the superior mesenteric district in 23%, and extension to the splenic vein in two patients (7.7%). Our survey, which is the largest regarding PMVT to date, revealed a diffuse lack of standardization in the choice, duration, and dosing of prophylaxis regimens as well as treatment modalities, reflecting the literature gap on the topic.<\/jats:p>","DOI":"10.3390\/jcm10174024","type":"journal-article","created":{"date-parts":[[2021,9,6]],"date-time":"2021-09-06T21:47:38Z","timestamp":1630964858000},"page":"4024","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Portomesenteric Vein Thrombosis after Bariatric Surgery: An Online Survey"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1189-9907","authenticated-orcid":false,"given":"Francesco Maria","family":"Carrano","sequence":"first","affiliation":[{"name":"PhD Program in Applied Medical-Surgical Sciences, University of Rome \u201cTor Vergata\u201d, 00133 Rome, Italy"},{"name":"Department of Surgical Sciences, University of Rome \u201cTor Vergata\u201d, 00133 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sylvia","family":"Weiner","sequence":"additional","affiliation":[{"name":"Department of Metabolic Surgery, Krankenhaus Nordwest, Steinbacher Hohl 2-26, 60488 Frankfurt, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4419-9018","authenticated-orcid":false,"given":"Moustafa","family":"Elshafei","sequence":"additional","affiliation":[{"name":"Department of Metabolic Surgery, Krankenhaus Nordwest, Steinbacher Hohl 2-26, 60488 Frankfurt, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Saleem","family":"Ahmed","sequence":"additional","affiliation":[{"name":"Department of Upper Gastrointestinal and Bariatric and Metabolic Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toghrul","family":"Talishinskiy","sequence":"additional","affiliation":[{"name":"Hackensack University Medical Center, Hackensack, NJ 07601, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Valeria","family":"Tognoni","sequence":"additional","affiliation":[{"name":"Department of Surgical Sciences, University of Rome \u201cTor Vergata\u201d, 00133 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kamal","family":"Mahawar","sequence":"additional","affiliation":[{"name":"Department of Surgery, Sunderland Royal Hospital, Sunderland SR4 7TP, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3370-4912","authenticated-orcid":false,"given":"Nicola","family":"Di Lorenzo","sequence":"additional","affiliation":[{"name":"PhD Program in Applied Medical-Surgical Sciences, University of Rome \u201cTor Vergata\u201d, 00133 Rome, Italy"},{"name":"Department of Surgical Sciences, University of Rome \u201cTor Vergata\u201d, 00133 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,9,6]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"313","DOI":"10.1007\/s11695-017-2845-9","article-title":"Bariatric Surgery Worldwide: Baseline Demographic Description and One-Year Outcomes from the Second IFSO Global Registry Report 2013\u20132015","volume":"28","author":"Welbourn","year":"2018","journal-title":"Obes. 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