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Determining the optimal time for radical cystectomy after neoadjuvant chemotherapy
Chinedu O Mmeje1, Cooper R Benson1, Graciela M Nogueras-González2
1Department of Urology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA.
BJU International
|March 24, 2018
Summary
The recovery window between neoadjuvant chemotherapy and radical cystectomy for bladder cancer does not impact 90-day postoperative morbidity. However, delaying radical cystectomy beyond 12 weeks increases the risk of lymph node metastasis.
Area of Science:
- Urology
- Oncology
- Surgical Oncology
Background:
- Neoadjuvant chemotherapy (NAC) followed by radical cystectomy (RC) is a standard treatment for muscle-invasive bladder cancer.
- The optimal timing for RC after NAC remains a subject of investigation.
- Understanding the impact of the recovery window (RW) on patient outcomes is crucial for treatment planning.
Purpose of the Study:
- To investigate the association between the recovery window (RW) and 90-day postoperative morbidity after radical cystectomy (RC).
- To determine the effect of the RW on the incidence of lymph node metastasis in bladder cancer patients.
- To identify predictors of perioperative morbidity and lymph node metastasis in patients undergoing NAC and RC.
Main Methods:
- Retrospective review of 306 patients with ≤cT4 N0 M0 bladder cancer treated with NAC and RC between 1995 and 2013.
- Patients were stratified into four RW groups based on 21-day intervals (18-42, 43-63, 64-84, and ≥85 days).
- Generalized linear models were used to analyze the association of RW with 90-day perioperative morbidity and lymph node metastasis.
Main Results:
- No significant differences in overall morbidity, re-admission, or major complication rates were observed across the four RW groups.
- Extravesical disease, older age, and longer surgical duration (≥7 hours) were independent predictors of perioperative morbidity.
- A RW of ≥85 days was associated with the highest incidence of node-positive disease (40%) and was an independent predictor of nodal metastasis (OR 2.92, P=0.018).
Conclusions:
- Patients with bladder cancer can safely undergo radical cystectomy between 18 and 84 days after neoadjuvant chemotherapy without increased perioperative morbidity.
- Delaying radical cystectomy beyond 12 weeks (84 days) following neoadjuvant chemotherapy is associated with a significantly increased risk of lymph node metastasis.
- Optimizing the timing of radical cystectomy after neoadjuvant chemotherapy is essential to balance oncologic outcomes and surgical risks.
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