ロボット支援腎部分切除術の初期経験におけるTrifecta達成に影響する術前因子の検討

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  • Pre-Operative Factors Affecting Trifecta Achievement in the Initial Series of Robot-Assisted Partial Nephrectomy
  • ロボット シエンジンブブン セツジョジュツ ノ ショキ ケイケン ニ オケル Trifecta タッセイ ニ エイキョウ スル ジュツゼン インシ ノ ケントウ

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We investigated pre-operative factors affecting trifecta achievement in robot-assisted partial nephrectomy (RAPN). We retrospectively analyzed 81 patients who underwent RAPN from December 2016 to September 2021 with final malignant pathologies. Trifecta was defined as negative resection margin (RM), warm ischemic time (WIT) less than 25 minutes, and no severe perioperative complications (Clavien-Dindo＜III). Factors affecting trifecta achievement were analyzed using sex, age, body mass index, RENAL nephrometry score (low or moderate/high complexity), surgical approach (transabdominal or retroperitoneal), tumor diameter and surgical experiences of each surgeon. Negative RM, WIT less than 25 minutes, and no severe complications were obtained in 75 (93%), 65 (80%), and 79 patients (98%), respectively. The trifecta was achieved in 60 patients (74%). In multivariate regression analysis, surgical experience (OR:0.92, 95% CI : 0.86-0.99) was significantly associated with trifecta achievement. Receiver operating characteristic curve analysis identified 9 cases as the optimal cut-off values for the predication of trifecta achievement (AUC＝0.69, p ＝0.11). The achievement of WIT less than 25 minutes (65 vs 90%, p＜0.01) and trifecta (58 vs 84%, p ＜0.05) were significantly lower in surgical experiences less than 9 cases than in 9 or greater. We conclude that surgical experience in RAPN is an important factor affecting WIT and trifecta achievement in the initial series.

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  • 泌尿器科紀要

    泌尿器科紀要 69 (3), 73-77, 2023-03-31

    泌尿器科紀要刊行会

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