TY - JOUR TI - Risk factors for residual disease at re-TUR in a large cohort of T1G3 patients AU - Pisano, F. AU - Gontero, P. AU - Sylvester, R. AU - Joniau, S. and AU - Serretta, V AU - Larre, S. AU - Di Stasi, S. AU - van Rhijn, B. AU - Witjes, AU - A. AU - Grotenhuis, A. AU - Colombo, R. AU - Briganti, A. AU - Babjuk, M. AU - and Soukup, V AU - Malmstrom, P. U. AU - Irani, J. AU - Malats, N. and AU - Baniel, J. AU - Mano, R. AU - Cai, T. AU - Cha, E. AU - Ardelt, P. and AU - Varkarakis, J. AU - Bartoletti, R. AU - Dalbagni, G. AU - Shariat, S. F. AU - and Xylinas, E. AU - Karnes, R. J. AU - Palou, J. JO - Actas Urologicas Espanolas - English Edition PY - 2021 VL - 45 TODO - 6 SP - 473-478 PB - ELSEVIER ESPANA SLU SN - 2173-5786 TODO - 10.1016/j.acuro.2020.08.016 TODO - Non-muscle invasive bladder cancer; Re-transurethral resection of the bladder; Residual disease; Recurrence; Progression TODO - Introduction and objectives: The goals of transurethral resection of a bladder tumor (TUR) are to completely resect the lesions and to make a correct diagnosis in order to adequately stage the patient. It is well known that the presence of detrusor muscle in the specimen is a prerequisite to minimize the risk of under staging. Persistent disease after resection of bladder tumors is not uncommon and is the reason why the European Guidelines recommended a re-TUR for all T1 tumors. It was recently published that when there is muscle in the specimen, re-TUR does not influence progression or cancer specific survival. We present here the patient and tumor factors that may influence the presence of residual disease at re-TUR. Material and methods: In our retrospective cohort of 2451 primary T1G3 patients initially treated with BCG, pathology results for 934 patients (38.1%) who underwent re-TUR are available. 74% had multifocal tumors, 20% of tumors were more than 3 cm in diameter and 26% had concomitant CIS. In this subgroup of patients who underwent re-TUR, there was no residual disease in 267 patients (29%) and residual disease in 667 patients (71%): Ta in 378 (40%) and T1 in 289 (31%) patients. Age, gender, tumor status (primary/recurrent), previous intravesical therapy, tumor size, tumor multi-focality, presence of concomitant CIS, and muscle in the specimen were analyzed in order to evaluate risk factors of residual disease at re-TUR, both in univariate analyses and multivariate logistic regressions. Results: The following were not risk factors for residual disease: age, gender, tumor status and previous intravesical chemotherapy. The following were univariate risk factors for presence of residual disease: no muscle in TUR, multiple tumors, tumors >= 3 cm, and presence of concomitant CIS. Due to the correlation between tumor multi-focality and tumor size, the multivariate model retained either the number of tumors or the tumor diameter (but not both), p < 0.001. The presence of muscle in the specimen was no longer significant, while the presence of CIS only remained significant in the model with tumor size, p < 0.001. Conclusions: The most significant factors for a higher risk of residual disease at re-TUR in T1G3 patients are multifocal tumors and tumors more than 3 cm. Patients with concomitant CIS and those without muscle in the specimen also have a higher risk of residual disease. (C) 2021 AEU. Published by Elsevier Espana, S.L.U. All rights reserved. ER -