High-Grade Ureteroscopic Biopsy Is Associated with Advanced Pathology of Upper-Tract Urothelial Carcinoma Tumors at Definitive Surgical Resection
High-Grade Ureteroscopic Biopsy Is Associated with Advanced Pathology of Upper-Tract Urothelial Carcinoma Tumors at Definitive Surgical Resection
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DOI:
10.1089/end.2011.0426
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发表时间:
2012-04-01
影响因子:
2.7
通讯作者:
Raman, Jay D.
中科院分区:
文献类型:
--
作者:
Clements, Thomas;Messer, Jamie C.;Raman, Jay D.
Background and Purpose: Accurate assessment of upper-tract urothelial carcinoma (UTUC) pathology may guide use of endoscopic vs extirpative therapy. We present a multi-institutional cohort of patients with UTUC who underwent surgical resection to characterize the association of ureteroscopic (URS) biopsy features with final pathology results.Patients and Methods: URS biopsy data were available in 238 patients who underwent surgical resection of UTUC. Biopsies were performed using a brush biopsy kit, mechanical biopsy device, or basket. Stage was classified as a positive brush, nonmuscle-invasive (= pT(2)). Grade was classified as low or high.Results: On URS biopsy, 88/238 (37%) patients had a positive brush, 140 (59%) had a diagnosis of non-MI, and 10 (4%) had MI disease. Biopsy results showed low-grade cancer in 140 (59%) and high-grade cancer in 98 (41%). Pathologic evaluation at surgical resection demonstrated non-MI tumors in 140 (59%) patients, MI in 98 (41%), and high-grade disease in 150 (63%). On univariate analysis, high URS biopsy grade was associated with high-grade (positive predictive value [PPV] 92%, P < 0.0001) and MI (PPV 60%, P < 0.0001) UTUC at surgery. URS biopsy stage, however, was associated with surgical pathology grade (P = 0.005), but not MI (P = 0.16) disease. On multivariate analysis, high URS grade, but not biopsy stage, was associated with high final pathology grade (hazard ratio [HR] 16.6, 95% confidence interval [CI] 7.0-39.5, P < 0.0001) and MI UTUC (HR 3.6, 95% CI 2.1-6.8, P < 0.0001).Conclusion: High URS biopsy grade, but not stage, is associated with adverse tumor pathology. This information may play a valuable role for risk stratification and in the appropriate selection of endoscopic management vs surgical extirpation for UTUC.