Pre-Operative Factors Affecting Trifecta Achievement in the Initial Series of Robot-Assisted Partial Nephrectomy

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  • AOKI Takahiro
    The Department of Renal and Urologic Surgery, Asahikawa Medical University
  • WADA Naoki
    The Department of Renal and Urologic Surgery, Asahikawa Medical University
  • TAMAKI Gaku
    The Department of Renal and Urologic Surgery, Asahikawa Medical University
  • ABE Noriyuki
    The Department of Renal and Urologic Surgery, Asahikawa Medical University
  • KOBAYASHI Shin
    The Department of Renal and Urologic Surgery, Asahikawa Medical University
  • MIYAUCHI Kotona
    The Department of Renal and Urologic Surgery, Asahikawa Medical University
  • ISHIKAWA Mayumi
    The Department of Renal and Urologic Surgery, Asahikawa Medical University
  • MAKINO Shogo
    The Department of Renal and Urologic Surgery, Asahikawa Medical University
  • NAGABUCHI Masaya
    The Department of Renal and Urologic Surgery, Asahikawa Medical University
  • KAKIZAKI Hidehiro
    The Department of Renal and Urologic Surgery, Asahikawa Medical University

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Other Title
  • 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
  • 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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Abstract

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.

Journal

  • 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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