To evaluate trends in oncologic characteristics and outcomes, as well as perioperative management, among patients undergoing radical cystectomy at Memorial Sloan Kettering from 1995 to 2015.
We retrospectively reviewed our institutional database to analyze changes in disease recurrence probability, cancer-specific and all-cause mortality, incidence of muscle-invasive bladder cancer, use of perioperative chemotherapy, rate of positive soft-tissue surgical margins, and lymph node yield.
In 2,740 patients with non-metastatic urothelial carcinoma undergoing radical cystectomy from 1995 to 2015, the 5-year probability of disease recurrence decreased from a peak of 42% in 1997 to 34% in 2013 (p=0.045), while 5-year probability of cancer-specific mortality likewise declined from 36% in 1997 to 24% in 2013 (p=0.009). Incidence of non-muscle-invasive disease before radical cystectomy did not change, comprising 30%-35% of patients across the study period. Use of neoadjuvant chemotherapy rose significantly: 57% of patients with muscle-invasive bladder cancer from 2010 to 2015 received it. We observed a corresponding rise in complete pathologic response (pT0) at radical cystectomy, as well as decreasing positive soft-tissue surgical margins (10% to 2.5%) and rising lymph node yield (7 to 24) from 1995 to 2015.
Over a 21-year period, outcomes after radical cystectomy at our institution improved significantly, as probability of recurrence and cancer-specific mortality decreased. Increasing utilization of neoadjuvant chemotherapy, rising pT0 rates, decreased positive soft-tissue surgical margins, and increasing lymph node yields likely contributed, suggesting that optimized surgical and perioperative care led to improved cancer outcomes in patients undergoing radical cystectomy.
The Journal of urology. 2020 Apr 15 [Epub ahead of print]
Nima Almassi, Eugene K Cha, Emily A Vertosick, Chun Huang, Nathan Wong, Shawn Dason, Victor McPherson, Lucas Dean, Nicole Benfante, Daniel D Sjoberg, Jonathan E Rosenberg, Dean F Bajorin, Harry W Herr, Guido Dalbagni, Bernard H Bochner
Urology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York., Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York., Genitourinary Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.