Clinical Applicated Study Of 80W KTP Photoselective Laser Vaporization On The Patients With Large-Volume Prostates

OBJECTIVE: To investigate, the safety and efficacy of high-power potassium-titanyl-phosphate photoselective laser vaporization of the prostate(PVP) in old men with prostate volume greater than 60 ml.METHODS: A total of 156 men with benign prostatic hyperplasia and large-volume prostates underwent photoselective laser vaporization of the prostate between October 2004 and December 2005.The preoperative evaluation included International Prostate Symptom Score, the maximal flow rate, postvoid residual urine volume, prostate volume, serum sodium and serum haemoglobin. Transurethral prostatectomy was performed with an 80 W potassium-titanyl-phosphate (KTP) side firing laser system through a 23F continuous-flow-cystoscope with normal saline as the irrigant.The operative time and the bleeding volume were recorded during the PVP operation. And postoperative serum sodium, serum haemoglobin, average catheterization and length of stay were recorded after the operation. The International Prostate Symptom Score, maximal flow rate, quality of life score and postvoid residual urine volume were measured at each follow-up visit at 1month,3 month,6 month and 12 month postoperatively.82 patients with high-risk underwent PVP in a prospective trial.Inclusion criteria was identical to the 156 case treated by PVP.RESULTS: 156 cases were treated by photoselective laser vaporization of the prostate with the epidural anesthesia.No one was followed by the open operation .The...