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Here, we aim to investigate the role of PC as a risk factor for perioperative morbidity and mortality in patients with GOO undergoing GJJ.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Perioperative data of 72 patients with malignant GOO who underwent palliative GJJ at our institution between 2010 and 2019 were collected within an institutional database.<\/jats:p><jats:p>To compare perioperative outcomes of patients with and without PC, extensive group analyses were carried out.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A set of 39 (54.2%) patients was histologically diagnosed with concomitant PC while the remaining 33 (45.8%) patients showed no clinical signs of PC. In-house mortality due to surgical complications was significantly higher in patients with PC (9\/39, 23.1%) than in patients without PC (2\/33, 6.1%,<jats:italic>p<\/jats:italic>= .046). Considerable differences were observed in terms of surgical complications such as anastomotic leakage rates (2.8% vs. 0%,<jats:italic>p<\/jats:italic>= .187), delayed gastric emptying (33.3% vs. 15.2%,<jats:italic>p<\/jats:italic>= .076), paralytic ileus (23.1% vs. 9.1%,<jats:italic>p<\/jats:italic>= .113), and pneumonia (17.9% vs. 12.1%,<jats:italic>p<\/jats:italic>= .493) without reaching the level of statistical significance.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>PC is an important predictor of perioperative morbidity and mortality patients undergoing GJJ for malignant GOO.<\/jats:p><\/jats:sec>","DOI":"10.1186\/s12957-020-1803-5","type":"journal-article","created":{"date-parts":[[2020,1,31]],"date-time":"2020-01-31T22:02:42Z","timestamp":1580508162000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Influence of peritoneal carcinomatosis on perioperative outcome in palliative gastric bypass for malignant gastric outlet obstruction - a retrospective cohort study"],"prefix":"10.1186","volume":"18","author":[{"given":"Jan","family":"Bednarsch","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zoltan","family":"Czigany","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel","family":"Heise","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Henning","family":"Zimmermann","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joerg","family":"Boecker","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tom Florian","family":"Ulmer","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ulf Peter","family":"Neumann","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8764-9440","authenticated-orcid":false,"given":"Christian","family":"Klink","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2020,1,31]]},"reference":[{"key":"1803_CR1","doi-asserted-by":"publisher","first-page":"421","DOI":"10.1016\/S0016-5107(04)02757-9","volume":"61","author":"M Del Piano","year":"2005","unstructured":"Del Piano M, Ballare M, Montino F, Todesco A, Orsello M, Magnani C, Garello E. 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