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Diagnostic accuracy of bimanual palpation in bladder cancer patients undergoing cystectomy: A prospective study

AK. Czech, K. Gronostaj, J. Fronczek, J. Frydrych, V. Bezshapkin, M. Przydacz, P. Dudek, L. Curylo, T. Wiatr, J. Gasowski, PL. Chlosta

. 2023 ; 41 (9) : 390.e27-390.e33. [pub] 20230503

Jazyk angličtina Země Spojené státy americké

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/bmc23016443

OBJECTIVES: To prospectively assess the concordance of examination under anesthesia (EUA)-based clinical T stage with pathological T stage and diagnostic accuracy of EUA in patients with bladder cancer undergoing cystectomy. METHODS: Consecutive patients with bladder cancer undergoing cystectomy between June 2017 and October 2020 in a single academic center were included in a prospective study. Two urologists performed EUA (one blinded to imaging) before patients underwent cystectomy. We assessed the concordance between clinical T stage in bimanual palpation (index test) and pathological T stage in cystectomy specimens (reference test). Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were calculated with 95% confidence intervals (CIs) to detect or exclude locally advanced bladder cancer (pT3b-T4b) in EUA. RESULTS: The data of 134 patients were analyzed. Given that stage pT3a cannot be palpated, for the nonblinded examiner, T staging in EUA was concordant with pT in 107 (79.9%) patients, 20 (14.9%) cases being understaged in EUA and 7 (5.2%) overstaged. For the blinded examiner, staging was correct in 106 (79.1%) patients, 20 (14.9%) cases being understaged and 8 (6%) overstaged. For the nonblinded examiner, sensitivity, specificity, PPV, and NPV of EUA were 55.9% (95% CI 39.2%-72.6%), 93% (88%-98%), 73.1% (56%-90.1%), and 86.1% (79.6%-92.6%), respectively; for the blinded examiner, they were 52.9% (36.2%-69.7%), 93% (88%-98%), 72% (54.4%-89.6%) and 85.3% (78.7%-92%), respectively. Awareness of imaging results did not have a major impact on EUA results. CONCLUSION: Bimanual palpation should still be used for clinical staging, given its specificity, NPV, and that it could correctly determine bladder cancer T stage in 80% of cases.

Citace poskytuje Crossref.org

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$a OBJECTIVES: To prospectively assess the concordance of examination under anesthesia (EUA)-based clinical T stage with pathological T stage and diagnostic accuracy of EUA in patients with bladder cancer undergoing cystectomy. METHODS: Consecutive patients with bladder cancer undergoing cystectomy between June 2017 and October 2020 in a single academic center were included in a prospective study. Two urologists performed EUA (one blinded to imaging) before patients underwent cystectomy. We assessed the concordance between clinical T stage in bimanual palpation (index test) and pathological T stage in cystectomy specimens (reference test). Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were calculated with 95% confidence intervals (CIs) to detect or exclude locally advanced bladder cancer (pT3b-T4b) in EUA. RESULTS: The data of 134 patients were analyzed. Given that stage pT3a cannot be palpated, for the nonblinded examiner, T staging in EUA was concordant with pT in 107 (79.9%) patients, 20 (14.9%) cases being understaged in EUA and 7 (5.2%) overstaged. For the blinded examiner, staging was correct in 106 (79.1%) patients, 20 (14.9%) cases being understaged and 8 (6%) overstaged. For the nonblinded examiner, sensitivity, specificity, PPV, and NPV of EUA were 55.9% (95% CI 39.2%-72.6%), 93% (88%-98%), 73.1% (56%-90.1%), and 86.1% (79.6%-92.6%), respectively; for the blinded examiner, they were 52.9% (36.2%-69.7%), 93% (88%-98%), 72% (54.4%-89.6%) and 85.3% (78.7%-92%), respectively. Awareness of imaging results did not have a major impact on EUA results. CONCLUSION: Bimanual palpation should still be used for clinical staging, given its specificity, NPV, and that it could correctly determine bladder cancer T stage in 80% of cases.
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$a Gronostaj, Katarzyna $u Department of Urology, Jagiellonian University Medical College, Krakow, Poland
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$a Fronczek, Jakub $u Centre for Intensive Care and Perioperative Medicine, Jagiellonian University Medical College, Krakow, Poland
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$a Frydrych, Jakub $u Department of Urology, Jagiellonian University Medical College, Krakow, Poland
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$a Bezshapkin, Valentyn $u Centre for Intensive Care and Perioperative Medicine, Jagiellonian University Medical College, Krakow, Poland
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$a Przydacz, Mikolaj $u Department of Urology, Jagiellonian University Medical College, Krakow, Poland
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$a Dudek, Przemyslaw $u Department of Urology, Jagiellonian University Medical College, Krakow, Poland
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$a Curylo, Lukasz $u Department of Urology, Jagiellonian University Medical College, Krakow, Poland
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$a Wiatr, Tomasz $u Department of Urology, Jagiellonian University Medical College, Krakow, Poland
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$a Gasowski, Jerzy $u Department of Internal Medicine and Gerontology, Jagiellonian University Medical College, Krakow, Poland
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$a Chlosta, Piotr L $u Department of Urology, Jagiellonian University Medical College, Krakow, Poland
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