Single-port (SP) was recently implemented as an alternative robotic system for extraperitoneal radical prostatectomy (EPP). The primary aim of this study is to characterize the learning curve (LC) for the SP-EPP for an experienced multi-port (MP) robotic surgeon. All consecutive SP-EPP cases (N=150) performed by a single surgeon from initial experience in a high-volume tertiary care center were prospectively included. The cumulative sum Method (CUSUM) was used retrospectively to create the LCs for SP-EPP surgery based on several outcomes used to gauge the surgeon's performance relative to those previously obtained with the current gold standard (MP-Robot Assisted Radical Prostatectomy (MP-RALP);N=80). The evaluation of a surgical transition from MP to SP prostatectomy analyzed with the Statistical Process Control and the CUSUM method revealed a smooth and safe LC divided into four phases of 30-40 cases and a decrease of surgical time, blood loss and postoperative complication rate after the first learning phase.

中文翻译：

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使用CUSUM方法的单端口机器人辅助腹膜外前列腺切除术的学习曲线分析

单端口 (SP) 最近被用作腹膜外根治性前列腺切除术 (EPP) 的替代机器人系统。本研究的主要目的是为经验丰富的多端口 (MP) 机器人外科医生表征 SP-EPP 的学习曲线 (LC)。所有连续的 SP-EPP 病例（N = 150）均由一位外科医生根据在大容量三级医疗中心的初始经验进行的前瞻性纳入。累积总和法 (CUSUM) 被回顾性地用于创建 SP-EPP 手术的 LC，基于几个结果，这些结果用于衡量外科医生的表现，相对于以前使用当前的金标准（MP-机器人辅助根治性前列腺切除术 (MP-RALP) 获得的结果） );N=80)。