Matthew Truong1, Lorraine Liang1, Janet Kukreja2, Jeanne O'Brien1, Jerome Jean-Gilles3, Edward Messing1. 1. Department of Urology, University of Rochester Medical Centre, Rochester, NY, United States. 2. Department of Urology, MD Anderson, Houston, TX, United States. 3. Department of Pathology, University of Rochester Medical Centre, Rochester, NY, United States.
Abstract
INTRODUCTION: We sought to determine how frequently cautery (thermal) artifact precludes an accurate determination of stage at initial transurethral resection of bladder tumour (TURBT) of large bladder tumours. METHODS: We queried our institution's billing data to identify patients who underwent TURBT for large bladder tumours >5cm (CPT 52240) by two urologists at an academic centre from January 2009 through April 2013. Only patients who underwent initial-staging TURBT for urothelial cancer were included. Pathological reports were reviewed for stage, number of separate pathological specimens per TURBT, and presence of cautery artifact. Operative reports were reviewed for whether additional cold cup biopsies were taken of other suspicious areas of the bladder, resident involvement, and type of electrocautery. RESULTS: We identified 119 patients who underwent initial staging TURBT for large tumours. Cautery artifact interfered with accurate staging in 7/119 (6%) of cases. Of these, six patients underwent restaging TURBT, with 50% percent experiencing upstaging to T2 disease. Tumour size, tumour grade, whether additional cold cup biopsies were taken, number of separate pathological specimens sent, and resident involvement were not associated with cautery artifact (all p>0.05). Bipolar resection had a higher rate of cautery artifact 5/42 (12%), compared to monopolar resection 2/77 (2.6%) approaching significance (p=0.095). CONCLUSIONS: Cautery artifact may delay accurate staging at initial TURBT for large tumours by understaging up to 6% of patients.
INTRODUCTION: We sought to determine how frequently cautery (thermal) artifact precludes an accurate determination of stage at initial transurethral resection of bladder tumour (TURBT) of large bladder tumours. METHODS: We queried our institution's billing data to identify patients who underwent TURBT for large bladder tumours >5cm (CPT 52240) by two urologists at an academic centre from January 2009 through April 2013. Only patients who underwent initial-staging TURBT for urothelial cancer were included. Pathological reports were reviewed for stage, number of separate pathological specimens per TURBT, and presence of cautery artifact. Operative reports were reviewed for whether additional cold cup biopsies were taken of other suspicious areas of the bladder, resident involvement, and type of electrocautery. RESULTS: We identified 119 patients who underwent initial staging TURBT for large tumours. Cautery artifact interfered with accurate staging in 7/119 (6%) of cases. Of these, six patients underwent restaging TURBT, with 50% percent experiencing upstaging to T2 disease. Tumour size, tumour grade, whether additional cold cup biopsies were taken, number of separate pathological specimens sent, and resident involvement were not associated with cautery artifact (all p>0.05). Bipolar resection had a higher rate of cautery artifact 5/42 (12%), compared to monopolar resection 2/77 (2.6%) approaching significance (p=0.095). CONCLUSIONS: Cautery artifact may delay accurate staging at initial TURBT for large tumours by understaging up to 6% of patients.
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