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Related Experiment Video

Updated: Feb 18, 2026

Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma

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Evaluation of Factors Affecting Transurethral Bladder Tumor Resection Quality: A Single-center Study Including 1014

Ayberk Iplikci¹, Burak Tufekci¹, Meftun Culpan¹

¹Department of Urology, Istanbul Medeniyet University, Istanbul, Türkiye.

Sisli Etfal Hastanesi Tip Bulteni

|February 17, 2026

Summary

High-quality transurethral resection of bladder tumor (TURBT) requires detrusor muscle (DM) detection. Tumor size, architecture, and surgical experience impact DM acquisition, with senior residents achieving better outcomes.

Keywords:

Bladder cancer TURBT detrusor muscle resident training surgical experience

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Area of Science:

Urology
Pathology
Surgical Quality Improvement

Background:

Transurethral resection of bladder tumor (TURBT) quality is crucial for bladder cancer management.
Absence of detrusor muscle (DM) in pathology specimens correlates with understaging.
Identifying factors influencing DM detection is essential for improving TURBT quality.

Purpose of the Study:

To evaluate factors affecting detrusor muscle (DM) detection in transurethral resection of bladder tumor (TURBT) specimens.
To determine the impact of tumor characteristics and surgical experience on DM acquisition.

Main Methods:

Retrospective analysis of 1014 TURBT procedures performed by residents under specialist supervision.
Inclusion criteria focused on complete resection and DM presence in pathology.
Statistical analysis, including multivariate analysis, to identify significant factors.

Main Results:

Detrusor muscle (DM) detection was significantly higher in large (≥3 cm), multiple, and solid tumors.
DM was more frequently found in high-grade tumors, variant histology (VH), and cases with carcinoma in situ (CIS).
Senior residents (65.3%) demonstrated higher DM detection rates than junior residents (58%, p=0.021), with tumor architecture and size being significant predictors.

Conclusions:

TURBT quality, defined by DM detection, is influenced by tumor characteristics and surgical experience.
Tumor size and architecture are key factors for successful DM acquisition.
Enhanced surgical training during residency improves TURBT quality and DM detection rates.