Urodynamic Study Of The Transurethral Plasmakinetic Prostatectomy

Objective:To evaluate the urodynamic outcomes of patients with benign prostatic hyperplasia (BPH) undergoing the transurethral plasmakinetic prostatectomy (TUPKP), To difine perfomance statistics for peak urinary flow rate,IPSS with respect to bladder outlet obstruction;and to investigate the value of urodynamic studies in the management of benign prostatic hyperplasia. Methods :Methods,definitions and units conform to the standards prosposed by the International Continence Society except when specifically noted. A total of 57 cases diagnosed as benign prostatic hyperplasia with the P/Q study and the Schaefer Graph (includeing11 cases of â…¢ grade , 18cases of â…£ grade, 21 cases of â…¤ grade and 5of â…¥ grade,meanwhile,9cases with weak+ detrusor strength,26cases with normal-detrusor strength, 17cases with normal+ detrusor strength, 5cases with stronger tension detrusor strength) were studied before and after the TUPKPwith the International Prostatic Symptom Score (IPSS) and the urodynamic examinations (includeing the uroflowmetry, voiding cystometry , P/Q study and resting urethral pressure profile, rUPP ).Results:After operation, the IPSS decreased significantly from 25.47 to 12.53;maximum urinary flow rate ( Qmax) increased significantly from 5.67 ml/s to 15.48 ml/s;detrusor pressure at Qmax(PdetQmax) decreased significantly from 77.67cmH2O to 37.12 cmH2O;bladder capacity increased significantly from 235.84ml to 389.73 ml. However, significantly shortened prostate length was observed, but the changes of pressure was not obvious. Conclusion:TUPKP can effectively relieve the bladder outlet obstruction in patients with BPH,Urodynamic studies can document clearly the underlying cause of the patient,scomplaints,and separated precisely obstructed from nonobstructed patients.lt also can predict the surgery outcome andimprove the successful rate.Although there are somewhat significant correlations amonglPSS index,Qmaxand urodynamic parameters. They can provide useful diagnostics information for BPH patients.Nevertheless,Symptoms are neither necessary,sufficient, norspecifics for the diagnosis of BPH and outlet obstruction.Due to the measurement problem and intraindividual variability,Qmax and IPSS index are not an indicator of BOO,but they are more useful in the monitoring for treatment outcome.Our findings demonstrate the importance of urodynamics studies in the management of BPE-associated voiding dysfounction.