OBJECTIVE: • To determine the value of systematic intraoperative peripheral frozen sections (FS) with or without extended resection during nerve-sparing radical prostatectomy for prediction of biochemical recurrence (BCR) compared with inked surgical margins. PATIENTS AND METHODS: • Between 1999 and 2003, in a prospective study, multiple peripheral FS (median 14; range 5-20) were taken from the urethral stump, circumferentially from the bladder neck, and from the lateral pedicles in 200 consecutive bilateral nerve-sparing radical prostatectomies for clinically localized prostate cancer by a single surgeon. • Patients with stage pT3b or more and/or positive lymph nodes were excluded. • Of the 188 patients, 178 (94.7%) were followed over a median of 82 months (62-124). • BCR, defined as prostate-specific antigen (PSA) ≥ 0.2 ng/mL, was related to status of both, inked specimen margins and FS. RESULTS: • Of all 188 prostatectomy specimens, 49 (26.1%) had positive surgical margins (PSM); these were found posterolaterally in 15 (30.6%), apically in 13 (26.5%), basally in 10 (20.4%) and at multiple sites in 11 (22.4%) specimens. • Intraoperative peripheral FS were positive in 19 (10.7%) patients, including 6.2% at urethral stump, 3.3% at lateral pedicles and 1.1% at bladder neck. • In organ-confined disease, BCR-free survival was 93.3% (111/119) for patients with negative surgical margins (NSM) and 72% (18/25) for patients with PSM (inked specimen), but negative peripheral FS (P < 0.001). • Five- and 10-year BCR-free survival for NSM was 94.9% and 92.8%, for PSM with negative peripheral FS it was 75.3% and 70.6%, and for PSM with positive peripheral FS it was 62.5% and 62.5%, respectively. CONCLUSIONS: • Frozen section biopsies of peripheral resection margins during nerve-sparing radical prostatectomy are not reliable in predicting PSM. • Intraoperative achievement of a locally disease-free status, as monitored by negative circumferential intraoperative FS of peripheral margins, is not associated with a statistically significant BCR-free survival benefit compared with patients with negative surgical margins on the prostatectomy specimen. • Based on these findings, we do not recommend a routine of systematically taking intraoperative FS biopsies during nerve-sparing radical prostatectomy.
OBJECTIVE: • To determine the value of systematic intraoperative peripheral frozen sections (FS) with or without extended resection during nerve-sparing radical prostatectomy for prediction of biochemical recurrence (BCR) compared with inked surgical margins. PATIENTS AND METHODS: • Between 1999 and 2003, in a prospective study, multiple peripheral FS (median 14; range 5-20) were taken from the urethral stump, circumferentially from the bladder neck, and from the lateral pedicles in 200 consecutive bilateral nerve-sparing radical prostatectomies for clinically localized prostate cancer by a single surgeon. • Patients with stage pT3b or more and/or positive lymph nodes were excluded. • Of the 188 patients, 178 (94.7%) were followed over a median of 82 months (62-124). • BCR, defined as prostate-specific antigen (PSA) ≥ 0.2 ng/mL, was related to status of both, inked specimen margins and FS. RESULTS: • Of all 188 prostatectomy specimens, 49 (26.1%) had positive surgical margins (PSM); these were found posterolaterally in 15 (30.6%), apically in 13 (26.5%), basally in 10 (20.4%) and at multiple sites in 11 (22.4%) specimens. • Intraoperative peripheral FS were positive in 19 (10.7%) patients, including 6.2% at urethral stump, 3.3% at lateral pedicles and 1.1% at bladder neck. • In organ-confined disease, BCR-free survival was 93.3% (111/119) for patients with negative surgical margins (NSM) and 72% (18/25) for patients with PSM (inked specimen), but negative peripheral FS (P < 0.001). • Five- and 10-year BCR-free survival for NSM was 94.9% and 92.8%, for PSM with negative peripheral FS it was 75.3% and 70.6%, and for PSM with positive peripheral FS it was 62.5% and 62.5%, respectively. CONCLUSIONS: • Frozen section biopsies of peripheral resection margins during nerve-sparing radical prostatectomy are not reliable in predicting PSM. • Intraoperative achievement of a locally disease-free status, as monitored by negative circumferential intraoperative FS of peripheral margins, is not associated with a statistically significant BCR-free survival benefit compared with patients with negative surgical margins on the prostatectomy specimen. • Based on these findings, we do not recommend a routine of systematically taking intraoperative FS biopsies during nerve-sparing radical prostatectomy.
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