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uCyt+/ImmunoCyt and cytology in the detection of urothelial carcinoma: an update on 7422 analyses.
Cancer Cytopathology 2013 July
BACKGROUND: The aim of the current study was to report the results of 7422 uCyt+/ImmunoCyt and cytology analyses that were performed over the course of 9 years at the study institution for the evaluation and follow-up of patients with urothelial carcinoma.
METHODS: Between January 2002 and March 2011, 2217 patients with a mean age of 69.5 years (range, 15 years-99 years) were enrolled in the current study. All patients seen for the follow-up of bladder and/or upper tract urothelial cancer as well as those with a history that was suspicious for bladder cancer were recruited. In all patients, a voided urinary cytology and uCyt+/ImmunoCyt test was performed. Patients underwent routine cystoscopy as well as cystoscopy when cytology and/or the uCyt+/ImmunoCyt test yielded positive results. Lesions that were detected cystoscopically were biopsied and removed transurethrally. A total of 7422 uCyt+/ImmunoCyt and cytology analyses were performed.
RESULTS: Of the 7422 uCyt+/ImmunoCyt tests and cytologies that were performed, 7075 (95.3%) were considered adequate. A total of 578 patients (with 1156 analyses) underwent biopsy and 728 (63%) samples had a histologically proven urothelial carcinoma. Overall sensitivity was 34.5% for cytology, 68.1% for uCyt+/ImmunoCyt, and 72.8% for the 2 tests combined. Overall specificity was 97.9% for cytology, 72.3% for uCyt+/ImmunoCyt, and 71.9% for the 2 tests combined. Cytology and the uCyt+/ImmunoCyt test together had an overall sensitivity of 72.8%, with 59% for grade 1, 77% for grade 2, and 90% for grade 3 tumors (according to the 1973 World Health Organization grading classification system).
CONCLUSIONS: On the basis of their 9-year experience, the authors confirm the value of uCyt+/ImmunoCyt and cytology analyses in the follow-up of patients with non-muscle-invasive urothelial cancer. This could potentially reduce the number and cost of routine cystoscopic examinations in patients who are followed for bladder carcinoma. Cancer (Cancer Cytopathol) 2013;121:392-397. © 2013 American Cancer Society.
METHODS: Between January 2002 and March 2011, 2217 patients with a mean age of 69.5 years (range, 15 years-99 years) were enrolled in the current study. All patients seen for the follow-up of bladder and/or upper tract urothelial cancer as well as those with a history that was suspicious for bladder cancer were recruited. In all patients, a voided urinary cytology and uCyt+/ImmunoCyt test was performed. Patients underwent routine cystoscopy as well as cystoscopy when cytology and/or the uCyt+/ImmunoCyt test yielded positive results. Lesions that were detected cystoscopically were biopsied and removed transurethrally. A total of 7422 uCyt+/ImmunoCyt and cytology analyses were performed.
RESULTS: Of the 7422 uCyt+/ImmunoCyt tests and cytologies that were performed, 7075 (95.3%) were considered adequate. A total of 578 patients (with 1156 analyses) underwent biopsy and 728 (63%) samples had a histologically proven urothelial carcinoma. Overall sensitivity was 34.5% for cytology, 68.1% for uCyt+/ImmunoCyt, and 72.8% for the 2 tests combined. Overall specificity was 97.9% for cytology, 72.3% for uCyt+/ImmunoCyt, and 71.9% for the 2 tests combined. Cytology and the uCyt+/ImmunoCyt test together had an overall sensitivity of 72.8%, with 59% for grade 1, 77% for grade 2, and 90% for grade 3 tumors (according to the 1973 World Health Organization grading classification system).
CONCLUSIONS: On the basis of their 9-year experience, the authors confirm the value of uCyt+/ImmunoCyt and cytology analyses in the follow-up of patients with non-muscle-invasive urothelial cancer. This could potentially reduce the number and cost of routine cystoscopic examinations in patients who are followed for bladder carcinoma. Cancer (Cancer Cytopathol) 2013;121:392-397. © 2013 American Cancer Society.
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