PURPOSE: We clarified the impact of concurrent medical disease on tumor control and survival following radical cystectomy. MATERIALS AND METHODS: A total of 106 consecutive patients with clinically localized (cT2 or less) disease underwent radical cystectomy at the University of Michigan between 1997 and 1998. The Charlson Index, a validated risk adjustment index, was used to assess preoperative co-morbidity. The 3 primary end points were pathological stage, disease specific survival and overall survival. Logistic regression models were used to determine the relationship between Charlson Index and pathological stage, while Cox regression models were used for the 2 survival end points. RESULTS: Of our study population 24% had a Charlson Index score of 2 or greater. Myocardial infarction, nonurothelial solid malignancies and cerebrovascular disease were the most common co-morbid conditions at 14%, 12% and 10%, respectively. On bivariate analysis the Charlson Index was significantly associated with decreased disease specific (p = 0.049) and overall (p = 0.016) survival. In a multivariate model the index was independently associated with decreased cancer specific survival (p = 0.049) and increased risk of extravesical disease (p = 0.033). CONCLUSIONS: We demonstrated an association between co-morbid illness and adverse pathological and survival outcome following radical cystectomy. This finding underscores the value of assessing overall health before recommending and proceeding with surgery. Moreover, our results emphasize the need to adjust for co-morbidity when comparing outcomes following radical cystectomy.
PURPOSE: We clarified the impact of concurrent medical disease on tumor control and survival following radical cystectomy. MATERIALS AND METHODS: A total of 106 consecutive patients with clinically localized (cT2 or less) disease underwent radical cystectomy at the University of Michigan between 1997 and 1998. The Charlson Index, a validated risk adjustment index, was used to assess preoperative co-morbidity. The 3 primary end points were pathological stage, disease specific survival and overall survival. Logistic regression models were used to determine the relationship between Charlson Index and pathological stage, while Cox regression models were used for the 2 survival end points. RESULTS: Of our study population 24% had a Charlson Index score of 2 or greater. Myocardial infarction, nonurothelial solid malignancies and cerebrovascular disease were the most common co-morbid conditions at 14%, 12% and 10%, respectively. On bivariate analysis the Charlson Index was significantly associated with decreased disease specific (p = 0.049) and overall (p = 0.016) survival. In a multivariate model the index was independently associated with decreased cancer specific survival (p = 0.049) and increased risk of extravesical disease (p = 0.033). CONCLUSIONS: We demonstrated an association between co-morbid illness and adverse pathological and survival outcome following radical cystectomy. This finding underscores the value of assessing overall health before recommending and proceeding with surgery. Moreover, our results emphasize the need to adjust for co-morbidity when comparing outcomes following radical cystectomy.
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