© The Author 2006. Published by Oxford University Press.
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Delayed Versus Immediate Surgical Intervention and Prostate Cancer Outcome
Affiliations of authors: Departments of Urology (CW, BJT, PL, HBC) and Pathology (JIE), Johns Hopkins University School of Medicine, James Buchanan Brady Urological Institute, Johns Hopkins Hospital, Baltimore, MD
Correspondence to: H. Ballentine Carter, MD, Department of Urology, Marburg 403, Johns Hopkins School of Medicine, 600 N. Wolfe St., Baltimore, MD 21287 (e-mail: hcarter{at}jhmi.edu).
For prostate cancer patients with small, lower-grade tumors, expectant management with delayed surgical intervention (active surveillance) is a rarely used therapeutic option because the opportunity for cure may be lost. We compared outcomes of 38 patients with small, lower-grade prostate cancer in an expectant management program who underwent delayed surgical intervention at a median of 26.5 months (95% confidence interval [CI] = 17 to 32 months; range = 12.0–73.0 months) after diagnosis with 150 similar patients who underwent immediate surgical intervention at a median of 3.0 months (95% CI = 2 to 4 months; range = 1.0–9.0 months) after diagnosis. Noncurable cancer was defined as adverse pathology associated with a less than 75% chance of remaining disease-free for 10 years after surgery. Noncurable cancer was diagnosed in nine (23%) of the 38 patients in the delayed intervention cohort and in 24 (16%) of the 150 men in the immediate intervention group. After adjusting for age and prostate-specific antigen (PSA) density (i.e., PSA value divided by prostate volume) in a Mantel–Haenszel analysis, the risks of noncurable cancer associated with delayed and immediate intervention did not differ statistically significantly (relative risk = 1.08, 95% CI = 0.55 to 2.12; P = .819, two-sided Cochran–Mantel–Haenszel statistic). Age, PSA, and PSA density were all statistically significantly associated with the risk of noncurable cancer (P = .030, .013, and .008, respectively; two-sided chi-square test). Thus, delayed prostate cancer surgery for patients with small, lower-grade prostate cancers does not appear to compromise curability.
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