Factors associated with and impact of open conversion in laparoscopic and robotic minor liver resections: An international multicenter study of 10,541 patients Journal Article


Authors: Saleh, M.; Pascual, F.; Ghallab, M.; Wu, A. G. R.; Chin, K. M.; Ratti, F.; Giglio, M. C.; Garatti, M.; Nghia, P. P.; Kato, Y.; Lim, C.; Herman, P.; Coelho, F. F.; Schmelzle, M.; Pratschke, J.; Aghayan, D. L.; Liu, Q.; Marino, M. V.; Belli, A.; Chiow, A. K. H.; Sucandy, I.; Ivanecz, A.; Di Benedetto, F.; Choi, S. H.; Lee, J. H.; Park, J. O.; Prieto, M.; Guzman, Y.; Fondevila, C.; Efanov, M.; Rotellar, F.; Choi, G. H.; Robles-Campos, R.; Kadam, P.; Sutcliffe, R. P.; Troisi, R. I.; Tang, C. N.; Chong, C. C.; D’Hondt, M.; Dalla Valle, B.; Ruzzenente, A.; Kingham, T. P.; Scatton, O.; Liu, R.; Mejia, A.; Mishima, K.; Wakabayashi, G.; Lopez-Ben, S.; Wang, X.; Ferrero, A.; Ettorre, G. M.; Vivarelli, M.; Mazzaferro, V.; Giuliante, F.; Yong, C. C.; Yin, M.; Monden, K.; Geller, D.; Chen, K. H.; Sugioka, A.; Edwin, B.; Cheung, T. T.; Long, T. C. D.; Abu Hilal, M.; Aldrighetti, L.; Soubrane, O.; Fuks, D.; Han, H. S.; Cherqui, D.; Goh, B. K. P.; and International Robotic and Laparoscopic Liver Resection Study Group Investigators
Article Title: Factors associated with and impact of open conversion in laparoscopic and robotic minor liver resections: An international multicenter study of 10,541 patients
Abstract: Introduction: Despite the increasing widespread adoption and experience in minimally invasive liver resections (MILR), open conversion occurs not uncommonly even with minor resections and as been reported to be associated with inferior outcomes. We aimed to identify risk factors for and outcomes of open conversion in patients undergoing minor hepatectomies. We also studied the impact of approach (laparoscopic or robotic) on outcomes. Methods: This is a post-hoc analysis of 20,019 patients who underwent RLR and LLR across 50 international centers between 2004–2020. Risk factors for and perioperative outcomes of open conversion were analysed. Multivariate and propensity score-matched analysis were performed to control for confounding factors. Results: Finally, 10,541 patients undergoing either laparoscopic (LLR; 89.1%) or robotic (RLR; 10.9%) minor liver resections (wedge resections, segmentectomies) were included. Multivariate analysis identified LLR, earlier period of MILR, malignant pathology, cirrhosis, portal hypertension, previous abdominal surgery, larger tumor size, and posterosuperior location as significant independent predictors of open conversion. The most common reason for conversion was technical issues (44.7%), followed by bleeding (27.2%), and oncological reasons (22.3%). After propensity score matching (PSM) of baseline characteristics, patients requiring open conversion had poorer outcomes compared with successful MILR cases as evidenced by longer operative times, more blood loss, higher requirement for perioperative transfusion, longer duration of hospitalization and higher morbidity, reoperation, and 90-day mortality rates. Conclusions: Multiple risk factors were associated with conversion of MILR even for minor hepatectomies, and open conversion was associated with significantly poorer perioperative outcomes. © Society of Surgical Oncology 2024.
Keywords: adult; controlled study; aged; middle aged; retrospective studies; major clinical study; clinical trial; mortality; liver cirrhosis; liver neoplasms; comparative study; outcome assessment; follow up; follow-up studies; laparoscopy; laparoscopic surgery; cohort analysis; risk factors; pathology; surgical approach; retrospective study; risk factor; postoperative complication; postoperative complications; length of stay; multicenter study; liver tumor; operation duration; reoperation; surgery; hepatectomy; hospital readmission; epidemiology; observational study; portal hypertension; postoperative hemorrhage; general hospital; wedge resection; procedures; operative time; conversion to open surgery; humans; prognosis; human; male; female; article; robotic surgical procedures; robot assisted surgery; american society of anaesthesiologists score; multiple tumor
Journal Title: Annals of Surgical Oncology
Volume: 31
Issue: 9
ISSN: 1068-9265
Publisher: Springer  
Date Published: 2024-09-01
Start Page: 5615
End Page: 5630
Language: English
DOI: 10.1245/s10434-024-15498-0
PUBMED: 38879668
PROVIDER: scopus
DOI/URL:
Notes: Article -- Source: Scopus
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  1. T Peter Kingham
    612 Kingham