医学
前列腺癌
前列腺切除术
比例危险模型
癌症
内科学
共病
前列腺
放射治疗
泌尿科
肿瘤科
外科
作者
Björn Löppenberg,Deepansh Dalela,Patrick Karabon,Akshay Sood,Jesse D. Sammon,Christian Meyer,Maxine Sun,Joachim Noldus,James O. Peabody,Quoc Dien Trinh,Mani Menon,Firas Abdollah
标识
DOI:10.1016/j.eururo.2016.04.031
摘要
The role of local treatment (LT) in patients with metastatic prostate cancer (mPCa) at diagnosis is controversial.We set to evaluate the potential impact of LT on overall mortality (OM) in men with mPCa, and how this impact is influenced by tumor and patient characteristics.A total of 15 501 patients with mPCa were identified in the National Cancer Data Base (2004-2012) and categorized in LT (radical prostatectomy or radiation therapy targeted to prostate) versus nonlocal treatment (NLT; all other patients).The two arms (LT vs NLT) were matched using propensity scores to minimize selection bias. To evaluate LT impact on OM in relation to baseline characteristics, first multivariable Cox regression analysis was used to predict OM in patients treated with NLT, then interaction between predicted OM risk and LT status was tested.Overall, 9.5% (n=1470) of patients received LT. In the postpropensity matched cohorts, 3-yr OM-free survival was higher in the LT group versus the NLT group (69% vs 54%; p<0.001). In multivariable Cox regression, the NLT group, age, and Charlson comorbidity index were predictors of OM (all p≤0.03). This model was used to predict the 3-yr OM risk. The interaction between predicted OM and LT status was significant (p<0.001). The benefit of LT on OM decreased progressively as predicted OM risk increased. Specifically, the 3-yr absolute improvement in OM-free survival was 15.7%, for patients with predicted OM risk ≤20% versus 0% for those with predicted OM risk ≥72%.Men with mPCa at diagnosis benefit from LT in terms of OM. This is largely affected by baseline characteristics. Specifically, patients with a relatively low tumor risk and good general health status appear to benefit the most.We used a large hospital-based database to evaluate which patients might benefit from local therapy when metastasized prostate cancer was present at diagnosis. Local therapy is associated with a survival benefit in men with less aggressive tumors and good general health.
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