Time between first and second transurethral resection of bladder tumors in patients with high-grade t1 tumors: is it a risk factor for residual tumor detection?
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CitationSuer, E., Ozcan, C., Baltaci, S., Gulpinar, Ö., Burgu, B., Haliloglu, A., & Beduk, Y. (2013). Time between First and Second Transurethral Resection of Bladder Tumors in Patients with High-Grade T1 Tumors: Is It a Risk Factor for Residual Tumor Detection? Urologia Internationalis, 91(2), 182–186. https://doi.org/10.1159/000350512
Purpose: We evaluated the risk factors for residual tumor detection after transurethral resection of bladder tumors (TURBT) in patients with newly diagnosed high-grade T1 transitional cell carcinoma of the bladder. Patients and Methods: Overall 132 patients underwent TURBT for primary bladder tumors and were diagnosed as high-grade T1 bladder cancer. Patients with incomplete resections were excluded from the study. Clinical and pathologic characteristics of the patients were compared and multivariate analysis was performed to determine independent prognostic factors. Results: Residual tumor was demonstrated in 57 (43.1%) of the patients. The residual tumor rate was significantly lower in patients with solitary tumors, tumors <3 cm in diameter, muscle presence in the initial TURBT pathologic sample and treated by an expert surgeon. In patients with solitary bladder tumors, tumors at the dome and posterior wall of the bladder exhibited higher rates of residual tumor (p < 0.0001). The time elapsed between first and second TURBT was significantly shorter in patients without residual tumor compared to patients with residual tumor at second TURBT (32.6 +/- 9.1 vs. 39.3 +/- 10.9 days, respectively, p = 0.001). Multivariate analysis demonstrated that time elapsed between first and second TURBT is the most important parameter for residual tumor detection. Conclusion: Our study revealed that multiple tumors, tumors >3 cm in size, absence of detrusor muscle in the initial TURBT specimen, TURBT performed by trainees and finally, as a new finding, prolonged interval between first and second TURBT are independent predictors for residual tumor detection in patients with high-grade T1 tumors. (c) 2013 S. Karger AG, Basel
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