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- Sho Ibuki, Taizo Hibi, Minoru Tanabe, David A Geller, Daniel Cherqui, Go Wakabayashi, and INSTALL-2 Collaborative Study Group .
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan.
- Ann. Surg. 2022 May 1; 275 (5): 940-946.
ObjectiveTo define the current status of "difficult" LLR, a global database was created and investigated.BackgroundIn the Second International Consensus Conference in 2014, minor LLR was considered as a standard practice and major LLR remained an innovative procedure. Since then, no updates on worldwide trends have been available.MethodsA questionnaire on all consecutive patients who underwent difficult LLR (major hepatectomy, posterosuperior segmentectomy, sectionec-tomy, living donor hepatectomy, tumor size ≥10 cm, Child-Pugh grade ≥B, combined with biliary reconstruction, and Iwate criteria difficulty score ≥7) in 2014-2018 was distributed via email to 65 high-volume LLR centers worldwide. individual data on patient and tumor demographics, surgical information, and short-term outcomes were obtained to create a large-scale international registry for analyses.ResultsOverall, 58 centers in 19 countries performed 4478 difficult LLR (median, 58.5; range, 5-418) during the study period. Hepatocellular carcinoma accounted for ≥ 40% of all indications. Half of the patients underwent major hepatectomy, followed by sectionectomy, posterosuperior segmentectomy, and living donor hepatectomy. in the vast majority of procedures, Clavien-Dindo grade ≥IIIa complication rates of ≈10% and 90-day mortality rates of ≈1% were achieved. Left or right trisectionectomy had the worst Clavien-Dindo grade ≥IIIa complication rate of ≥10% and 90-day mortality rate of 5%-10%. No significant correlation was observed between center volume and short-term outcomes.ConclusionsTotal 4478 patients underwent difficult LLR worldwide in 2014-2018. Most procedures are safe and feasible when conducted in specialized centers.Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.
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