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Factors associated with and impact of open conversion on the outcomes of minimally invasive left lateral sectionectomies: An international multicenter study

  • International Robotic and Laparoscopic Liver Resection Study Group Investigators
  • Chang Gung University
  • Singapore General Hospital
  • Hôpital Paul Brousse
  • Azienda Ospedaliera Universitaria Federico II
  • Viral Evolution and Transmission Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele, Milan, Italy
  • University of Oslo
  • Unit of Psychiatry, “P. Giaccone” General Hospital, Via G. La Loggia n.1, 90129, Palermo, Italy
  • IRCCS Istituto nazionale tumori Fondazione Giovanni Pascale - Napoli
  • Changi General Hospital
  • Digestive Health Institute
  • Department of Abdominal and General Surgery, Slovenia
  • Marche Polytechnic University
  • University of Modena and Reggio Emilia
  • CHA University
  • University of Ulsan
  • University of Washington
  • Biocruces Bizkaia
  • University of Barcelona
  • Universidad Autónoma de Madrid
  • Moscow Clinical Scientific Center
  • University of Navarra
  • Yonsei University
  • Hospital Virgen de la Arrixaca
  • Fudan University
  • University Hospitals Birmingham NHS Foundation Trust
  • Berlin Institute of Health, Comprehensive Allergy Center, Department of Dermatology and Allergy, Berlin
  • Pamela Youde Nethersole Eastern Hospital
  • Chinese University of Hong Kong
  • Department of Oncology and Statistics, Groeninge Hospital Kortrijk, Kortrijk, Belgium
  • University of Verona
  • Universidade de São Paulo
  • Memorial Sloan-Kettering Cancer Center
  • Sorbonne Université
  • General Hospital of People's Liberation Army
  • Ospedale Mauriziano Umberto I
  • San Camillo Hospital
  • Institut mutualiste Montsouris
  • Methodist Dallas Medical Center
  • University of Girona
  • Department of Surgery, Fondazione Poliambulanza - Instituto Ospedaliero, Brescia, Italy
  • Fukuyama City Hospital
  • Ageo Central General Hospital
  • Fujita Health University
  • The University of Hong Kong
  • University of Medicine and Pharmacy at Ho Chi Minh City
  • Seoul National University
  • University Hospital Southampton NHS Foundation Trust
  • National Cancer Centre
  • Health Services and Systems Research, Duke-NUS Medical School, Singapore, Singapore

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Background: Despite the rapid advances that minimally invasive liver resection has gained in recent decades, open conversion is still inevitable in some circumstances. In this study, we aimed to determine the risk factors for open conversion after minimally invasive left lateral sectionectomy, and its impact on perioperative outcomes. Methods: This is a post hoc analysis of 2,445 of 2,678 patients who underwent minimally invasive left lateral sectionectomy at 45 international centers between 2004 and 2020. Factors related to open conversion were analyzed via univariate and multivariate analyses. One-to-one propensity score matching was used to analyze outcomes after open conversion versus non-converted cases. Results: The open conversion rate was 69/2,445 (2.8%). On multivariate analyses, male gender (3.6% vs 1.8%, P = .011), presence of clinically significant portal hypertension (6.1% vs 2.6%, P = .009), and larger tumor size (50 mm vs 32 mm, P < .001) were identified as independent factors associated with open conversion. The most common reason for conversion was bleeding in 27/69 (39.1%) of cases. After propensity score matching (65 open conversion vs 65 completed via minimally invasive liver resection), the open conversion group was associated with increased operation time, blood transfusion rate, blood loss, and postoperative stay compared with cases completed via the minimally invasive approach. Conclusion: Male sex, portal hypertension, and larger tumor size were predictive factors of open conversion after minimally invasive left lateral sectionectomy. Open conversion was associated with inferior perioperative outcomes compared with non-converted cases.

Original languageEnglish
Pages (from-to)617-624
Number of pages8
JournalSurgery (United States)
Volume172
Issue number2
Early online date2022
DOIs
Publication statusPublished - Aug 2022

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