Urologia internationalis · 2016
Striated Muscle in Radical Prostatectomy Specimens: A Marker of Apical Dissection Quality and an Independent Predictor of Urinary Continence after Endoscopic Extraperitoneal Radical Prostatectomy.
СтатьяНазвание и аннотация: Перевод пока не подготовлен
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Good Daniel W, Wood Andrew, Stewart Laurence, Stolzenburg Jens-Uwe, Ganzer Roman, Neuhaus Jochen, Stewart Grant D, McNeill S Alan
Аннотация
INTRODUCTION: The study aimed to determine if the presence and amount of striated muscle on the apical sections of the cruciate sections of laparoscopic radical prostatectomy (LRP) specimens predict early and long-term urinary continence outcomes.
PATIENTS AND METHODS: We conducted a retrospective review of our prospectively collected single surgeon LRP database. We identified patients based on their continence outcomes (continent (0 pads) or incontinent at 12 months), with an approximate even spread early continent and incontinent patients). An uropathologist separate from the urology team was blinded to outcome and assessed each patients' apical cruciate sections (H&E stained) for the presence, percentage and maximal diameter of muscle and extraprostatic tissue on these sections. Specifically 2 scoring systems were used: (1) semi-quantitative estimation of percentage of muscle on the apical cruciate sections (low <5% and high >5%) and (2) percentage of total extraprostatic tissue on cruciate section (low <10% and high >10%). Logistic regression and classification and regression tree analyses were performed to identify the predictors of urinary incontinence (UI).
RESULTS: In total 80 patients were analyzed, 38 were continent and 42 were incontinent at 12 months follow-up. The percentage of extraprostatic tissue/muscle being an independent predictor of being wet at 12 months (p = 0.002) on multivariate regression along with age (p = 0.04). Using percentage of extraprostatic tissue in cruciate section (high >10%) to predict UI at 12 months, it yielded 71% sensitivity, 82% specificity, 81% PPV, 72% NPV and 76% accuracy.
CONCLUSION: The use of simple additional reporting of muscle and extraprostatic tissue on the apical sections of RP specimens can help to better predict the likelihood of continence return.
PATIENTS AND METHODS: We conducted a retrospective review of our prospectively collected single surgeon LRP database. We identified patients based on their continence outcomes (continent (0 pads) or incontinent at 12 months), with an approximate even spread early continent and incontinent patients). An uropathologist separate from the urology team was blinded to outcome and assessed each patients' apical cruciate sections (H&E stained) for the presence, percentage and maximal diameter of muscle and extraprostatic tissue on these sections. Specifically 2 scoring systems were used: (1) semi-quantitative estimation of percentage of muscle on the apical cruciate sections (low <5% and high >5%) and (2) percentage of total extraprostatic tissue on cruciate section (low <10% and high >10%). Logistic regression and classification and regression tree analyses were performed to identify the predictors of urinary incontinence (UI).
RESULTS: In total 80 patients were analyzed, 38 were continent and 42 were incontinent at 12 months follow-up. The percentage of extraprostatic tissue/muscle being an independent predictor of being wet at 12 months (p = 0.002) on multivariate regression along with age (p = 0.04). Using percentage of extraprostatic tissue in cruciate section (high >10%) to predict UI at 12 months, it yielded 71% sensitivity, 82% specificity, 81% PPV, 72% NPV and 76% accuracy.
CONCLUSION: The use of simple additional reporting of muscle and extraprostatic tissue on the apical sections of RP specimens can help to better predict the likelihood of continence return.