الفهرس 
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Abstract
Objective
The primary aim of the study was to evaluate the safety and efficacy of bipolar energy in resecting bladder tumors versus monopolar.
Patients and methods
This prospective, randomized study was performed in Beni Suef University Hospital, starting from September 2017 for 1 year evaluating the safety and efficacy of bipolar energy in transurethral resection of bladder tumours (TURBT). Institutional Ethics Committee approval was obtained. Informed consent was taken from all patients. Patients were randomized into two groups of 55 each to undergo either monopolar TURBT or bipolar TURBT using water and saline irrigation solutions, respectively. Dedicated genitourinary oncology pathologists blinded to resection type and assessed pathologic features including stage and grade, presence of muscularis propria, presence of thermal artifacts within the specimen, layer of tissue most affected and severity of tissue distortion. Clinical outcomes including, bleeding ,perforation, obturator reflex, perforation, TUR syndrome, resection and catheterization time were recorded. Clinical and pathologic outcomes between resection modalities were compared.
Results
The grade ofthermal damage was statistically significant between the two groups (p=0.001)., the means of variables were compared between the two energy sources to know the difference between them and its significance. Hematocrit level and obturator jerks had significant values.
Conclusion
Plasma kinetic bipolar equipment appears to cause less tissue distortion and has the potential to facilitate staging and grading of bladder tumors. The results of this study indicated that bipolar resection of bladder tumours have lower incidence of complications especially bleeding, TUR syndrome, obturator jerks and bladder perforation. Bipolar TURBT is safe and efficacious in managing bladder tumours.
Keywords: Bipolar, bladder tumor, plasma, saline, transurethral resection.