1. Laparoscopic sentinel lymph node dissection in prostate cancer patients: the additional value depends on preoperative data
- Author
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Pierre Nevoux, Cédric Mathieu, Caroline Rousseau, T. Rousseau, G. Aillet, E. Potiron, Loïc Campion, J. Lacoste, Georges Le Coguic, Françoise Kraeber-Bodéré, Institut de Cancérologie de l'Ouest [Angers/Nantes] (UNICANCER/ICO), UNICANCER, Centre de Recherche en Cancérologie Nantes-Angers (CRCNA), Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM)-Hôtel-Dieu de Nantes-Institut National de la Santé et de la Recherche Médicale (INSERM)-Hôpital Laennec-Centre National de la Recherche Scientifique (CNRS)-Faculté de Médecine d'Angers-Centre hospitalier universitaire de Nantes (CHU Nantes), Clinique Atlantis [Nantes], Service d'Anatomopathologie [Nantes], Centre hospitalier universitaire de Nantes (CHU Nantes), Unité de Statistiques [Saint-Herblain], UNICANCER-UNICANCER, Service de médecine nucléaire [Saint-Herblain], and Bernardo, Elizabeth
- Subjects
Male ,Laparoscopic surgery ,medicine.medical_specialty ,medicine.medical_treatment ,Sentinel lymph node ,030232 urology & nephrology ,[SDV.CAN]Life Sciences [q-bio]/Cancer ,Sensitivity and Specificity ,Preoperative care ,Nomogram ,03 medical and health sciences ,Prostate cancer ,0302 clinical medicine ,[SDV.CAN] Life Sciences [q-bio]/Cancer ,Preoperative Care ,medicine ,Humans ,Cutoff ,Radiology, Nuclear Medicine and imaging ,Lymph node ,Aged ,Neoplasm Staging ,Receiver operating characteristic ,Sentinel Lymph Node Biopsy ,business.industry ,Prostatic Neoplasms ,Reproducibility of Results ,General Medicine ,Middle Aged ,medicine.disease ,3. Good health ,Surgery ,medicine.anatomical_structure ,Lymphatic Metastasis ,030220 oncology & carcinogenesis ,Lymph Node Excision ,Laparoscopy ,Radiology ,business ,Lymphoscintigraphy - Abstract
International audience; Aim In intermediate- or high-risk prostate cancer (PC) patients, to avoid extended pelvic lymph node dissection (ePLND), the updated Briganti nomogram is recommended with the cost of missing 1.5 % of patients with lymph node invasion (LNI). Is it possible to reduce the percentage of unexpected LNI patients (nomogram false negative)? We used the isotopic sentinel lymph node (SLN) technique systematically associated with laparoscopic ePLND to assess the potential value of isotopic SLN method to adress this point. Methods Two hundred and two consecutive patients had procedures with isotopic SLN detection associated with laparoscopic ePLND for high or intermediate risk of PC. The area under the curve (AUC) of the receiver operating characteristics (ROC) analysis was used to quantify the accuracy of different models as: the updated Brigantinomogram, the percentage of positive cores, and an equation of the best predictors of LNI. We tested the model cutoffs associated with an optimal negative predictive value (NPV) and the best cutoff associated with avoiding false negative SLN detection, in order to assist the clinician’s decision of when to spare ePLND. Results LNI was detected in 35 patients (17.2 %). Based on preoperative primary Gleason grade and percentage of positive cores, a bivariate model was built to calculate acombined score reflecting the risk of LNI. For the Briganti nomogram, the 5 % probability cutoff avoided ePLND in 53 % (108/202) of patients, missing three LNI patients (8.6 %), but all were detected by the SLN technique. For our bivariate model, the best cutoff was
- Published
- 2016
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