The primary end points of the study were not met: a rate of confirmed PSA response >30% and a major toxic event rate <45% were not observed with docetaxel-oblimersen.
Positive surgical margin rates at robot assisted radical cystectomy for advanced bladder cancer were similar to those in open cystectomy series in a large, multi-institutional, prospective cohort. Sequential case number, a surrogate for the learning curve and institutional volume were not significantly associated with positive margins at robot assisted radical cystectomy.
What’s known on the subject? and What does the study add?
It is known that the lymph node yield in open cystectomy is variable and dependent, in some part, upon surgeon experience.
This study, the largest of its kind reporting on outcomes associated with robot‐assisted radical cystectomy, demonstrates that lymph node yields in experienced hands at the time of robot‐assisted radical cystectomy is comparable to that seen in open series.
OBJECTIVE
To evaluate the incidence of, and predictors for, lymphadenectomy in patients undergoing robot‐assisted radical cystectomy (RARC) for bladder cancer.
PATIENTS AND METHODS
Utilizing the International Robotic Cystectomy Consortium (IRCC) database, 527 patients were identified who underwent RARC at 15 institutions from 2003 to 2009. After stratification by age group, sex, pathological T stage, nodal status, sequential case number, institutional volume and surgeon volume, logistic regression was used to correlate variables to the likelihood of undergoing lymphadenectomy (defined as ≥10 nodes removed).
RESULTS
Of the 527 patients, 437 (82.9%) underwent lymphadenectomy. A mean of 17.8 (range 0–68) lymph nodes were examined. Tumour stage, sequential case number, institution volume and surgeon volume were significantly associated with the likelihood of undergoing lymphadenectomy. Surgeon volume was most significantly associated with lymphadenectomy on multivariate analysis. High‐volume surgeons (>20 cases) were almost three times more likely to perform lymphadenectomy than lower‐volume surgeons, all other variables being constant [odds ratio (OR) = 2.37; 95% confidence interval (CI) = 1.39–4.05; P= 0.002].
CONCLUSION
The rates of lymphadenectomy at RARC for advanced bladder cancer are similar to those of open cystectomy series using a large, multi‐institutional cohort. There does, however, appear to be a learning curve associated with the performance of lymphadenectomy at RARC.
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