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Clin Genitourin Cancer


BACKGROUND: The detrimental impact of lymphovascular invasion (LVI) in prostate cancer (PCa) on biochemical recurrence has been described; the impact of LVI on overall survival (OS) remains unclear. This investigation sought to evaluate the impact of LVI on OS in patients with PCa.

METHODS: We examined men with nonmetastatic PCa treated with radical prostatectomy between 2010 and 2015. Only men with documented LVI status were included (n = 232,704). Patients were stratified according to final pathologic T stage (pT2, pT3a, and pT3b).

RESULTS: Of the 232,704 patients who met inclusion criteria, 17,758 (8%) were found to have LVI on final pathology. Overall, 174,838 (75%), 40,281 (17%), and 17,585 (8%) patients had pT2, pT3a, and pT3b disease, respectively. Median follow-up was 42.7 months (27.1-58.7). At 5 years, the OS in LVI versus non-LVI patients was 94% versus 95% in pT2 (P = .0004), 92% versus 95% in pT3a (P < .0001), and 86% versus 92% in pT3b (P < .0001). On multivariable analysis, LVI status was not an independent predictor of OS in pT2 disease (hazard ratio, 1.12; 95% confidence interval [CI], 0.93-1.36; P = .2). In pT3a and pT3b disease, presence of LVI had 1.2-fold (95% CI, 1.03-1.44; P = .02) and 1.4-fold (95% CI, 1.20-1.59; P < .001) higher overall mortality than their counterparts without LVI.

CONCLUSIONS: Our report demonstrates the detrimental impact of LVI on OS in locally advanced PCa (pT3a and higher). This information may prove valuable when risk stratifying based on final pathology.

Medical Subject Headings

Humans; Male; Neoplasm Invasiveness; Neoplasm Staging; Prognosis; Prostatectomy; Prostatic Neoplasms; Seminal Vesicles

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