Monopolar versus bipolar transurethral resection of lateral wall-located bladder cancer under obturator nerve block: a single center prospective randomized study

Monopolar versus bipolar transurethral resection of lateral wall-located bladder cancer under obturator nerve block: a single center prospective randomized study

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ABSTRACT Introduction: The aim of the present prospective-randomized study was to compare perioperative outcomes and complications of bipolar and monopolar TURBT for lateral wall-located non-muscle invasive bladder cancers (NMIBC) under obturator nerve block (ONB).Patients and Methods: 80 patients who underwent TURBT for jilungin dreaming tea lateral wall-located primary bladder tumors under ONB from March, 2016 to November, 2019 were included in the present study.The patients were randomized equally into two groups; monopolar TUR (M-TURBT) and bipolar TUR (B-TURBT).The primary and secondary outcomes were safety (obturator jerk and bladder perforation) and efficacy (complete tumor resection and sampling of the deep muscle tissue).

Results: Obturator jerk was detected in 2 patients (5%) in M-TURBT while obturator jerk was not observed during B-TURBT (p=0.494).Bladder perforation was not observed in both groups.All of the patients underwent complete tumor resection.

There was no significant difference in muscle tissue sampling (67.5% vs.72.5%, p=0.

626) and thermal tissue damage rates (12.5% vs.25%, p=0.201).

The majority of complications were low-grade and the differences in Clavien grade 1-3 complications between groups were not statistically significant.Conclusion: In the treatment of lateral-wall located NMIBCs, either M-TURBT or B-TURBT can be safely and effectively performed click here by combining spinal anesthesia with ONB.Even so, it should be taken into consideration that low-grade postoperative hemorrhagic complications may occur in patients who undergo M-TURBT.