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  • Title: Rates and Patterns of Recurrences and Survival Outcomes after Robot-Assisted Radical Cystectomy: Results from the International Robotic Cystectomy Consortium.
    Author: Elsayed AS, Gibson S, Jing Z, Wijburg C, Wagner AA, Mottrie A, Dasgupta P, Peabody J, Hussein AA, Guru KA.
    Journal: J Urol; 2021 Feb; 205(2):407-413. PubMed ID: 32945729.
    Abstract:
    PURPOSE: There have been concerns about higher incidence of local and retroperitoneal recurrences after robot-assisted radical cystectomy compared to open radical cystectomy. We report and detail relapses following robot-assisted radical cystectomy using a multinational database. MATERIALS AND METHODS: A retrospective review of the International Robotic Cystectomy Consortium was performed. Data were reviewed for demographics, and perioperative, pathological and oncologic outcomes. Relapse rates and patterns were analyzed. Kaplan-Meier curves were used to depict relapse-free, local recurrence-free, distant metastasis-free and overall survival. Kaplan-Meier curves were further stratified by disease stage, lymph node status and margins. Multivariate stepwise Cox regression models were used to identify variables associated with relapse-free, local recurrence-free, distant metastasis-free and overall survival. RESULTS: Of 2,107 patients 521 (25%) experienced disease relapse. Mean age (SD) was 68±10 years with a median followup of 26 (IQR 11-55) months for the study cohort. Local recurrences were observed in 11% and distant metastases in 18%. Early oncologic failure (within 3 months) occurred in 4% of patients. The most common sites of local recurrence and distant metastasis were the pelvis (5%) and lungs (6%)/extrapelvic lymph nodes (5%), respectively. Abdominal wall/port site metastasis occurred in 1.2% and peritoneal carcinomatosis in 1.2%. Five-year relapse-free, local recurrence-free, distant metastasis-free and overall survival was 66%, 84%, 74% and 60%, respectively. Patients with higher disease stage, positive lymph nodes and positive soft tissue surgical margins demonstrated worse relapse-free, local recurrence-free, distant metastasis-free and overall survival (log rank p <0.01 for all comparisons). Multivariate regression models identified that node positive status and disease stage (pT3 or greater) were significantly associated with relapse-free, local recurrence-free, distant metastasis-free and overall survival (p <0.01). CONCLUSIONS: Disease stage remains the main variable associated with disease relapse and survival following radical cystectomy. Robot-assisted radical cystectomy was not associated with different patterns or higher relapse rates compared to historic open radical cystectomy data.
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