Comparison of the monopolar versus bipolar transurethral resection of the bladder

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00034657

Enrollment

264

Registered

2024-08-05

Start date

2015-01-20

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

C67

Interventions

Group 1: bipolar transurethral resection of the bladder (TURB) Detailed description of the intervention: 1. Patients in the study are treated in the same way as those in standard clinical treatment

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: - standard of care treatment with transurethral resection of the bladder (TURB) due to bladder cancer at Klinikum rechts der Isar - informed consent to the operation and participation in the study

Exclusion criteria

Exclusion criteria: - planned re-resection after previous transurethral resection of the bladder (TURB) - previous Bacillus Calmette-Guérin (BCG) treatment

Design outcomes

Primary

Measure	Time frame
quality of the histological specimen by assessing the proportion of cautery artifacts Detailed description: The histological quality (relative integrity) of the obtained specimens based on the proportion of cautery artifacts represents the primary endpoint of the study and is analyzed postoperatively by the pathologist. A specimen with few and/or low cautery artifacts has a higher quality in tumor grading and staging than one with many and/or severe cautery artifacts. The specimens are assessed visually under the microscope by the pathologist to evaluate their cautery artifacts. The pathologist is blinded to which resection technique was used. The percentage of cautery artifacts in the samples from a patient is recorded with a pseudonym (sample number in the study) by the pathologist using a questionnaire.	—

Measure

Time frame

quality of the histological specimen by assessing the proportion of cautery artifacts Detailed description: The histological quality (relative integrity) of the obtained specimens based on the proportion of cautery artifacts represents the primary endpoint of the study and is analyzed postoperatively by the pathologist. A specimen with few and/or low cautery artifacts has a higher quality in tumor grading and staging than one with many and/or severe cautery artifacts. The specimens are assessed visually under the microscope by the pathologist to evaluate their cautery artifacts. The pathologist is blinded to which resection technique was used. The percentage of cautery artifacts in the samples from a patient is recorded with a pseudonym (sample number in the study) by the pathologist using a questionnaire.

—

Secondary

Measure	Time frame
incidence of obturator nerve reflex	—

Countries

Germany

Contacts

Public ContactMichael Straub

Urologische Klinik und Poliklinik der Technischen Universität München

michael.straub@lrz.tum.de+49 (0)89 / 41 40 - 25

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026