Portal de Periódicos da CAPES

PHOTOSELECTIVE VAPORIZATION OF THE PROSTATE: A VOLUME REDUCTION ANALYSIS IN PATIENTS WITH LOWER URINARY TRACT SYMPTOMS SECONDARY TO BENIGN PROSTATIC HYPERPLASIA AND CARCINOMA OF THE PROSTATE

2005; Lippincott Williams & Wilkins; Volume: 173; Issue: 2 Linguagem: Inglês

10.1097/01.ju.0000150099.31289.d7

1527-3792

Surendra Kumar,

Urological Disorders and Treatments

No AccessJournal of UrologyAdult Urology: Voiding Dysfunction1 Feb 2005PHOTOSELECTIVE VAPORIZATION OF THE PROSTATE: A VOLUME REDUCTION ANALYSIS IN PATIENTS WITH LOWER URINARY TRACT SYMPTOMS SECONDARY TO BENIGN PROSTATIC HYPERPLASIA AND CARCINOMA OF THE PROSTATE SURENDRA M. KUMAR SURENDRA M. KUMARSURENDRA M. KUMAR More articles by this author View All Author Informationhttps://doi.org/10.1097/01.ju.0000150099.31289.d7AboutFull TextPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract Purpose: In this study preoperative and postoperative transrectal ultrasound prostate volume was evaluated in patients undergoing photoselective vaporization of prostate using an 80 W potassium-titanyl-phosphate (KTP) laser (Greenlight PV Laser System, Laserscope, San Jose, California) for obstructive uropathy secondary to benign prostatic hyperplasia or carcinoma of the prostate. Materials and Methods: A total of 18 patients with lower urinary tract symptoms secondary to benign prostatic hyperplasia (8) and carcinoma of the prostate (10) were treated with an 80 W quasicontinuous KTP laser. Preoperative and immediate postoperative treatment prostate volume measurements were recorded by transrectal ultrasound. The end point of treatment was complete vaporization of the obstructive adenoma to the level of the capsular fibers and the creation of an adequate transurethral resection-like prostatic cavity. KTP/532 laser energy was delivered by a side firing glass fiber through a 27Fr continuous flow resectoscope. Photoselective vaporization of the prostate using sterile water irrigation was performed with all patients under spinal anesthesia. Mean lasting time ± SEM was 33.5 ± 12 minutes (range 11 to 53). Results: Mean preoperative prostate volume ± SEM was 53.2 ± 24.7 ml (range 23.6 to 110), while mean postoperative prostate volume was decreased to 26.2 ± 14.8 ml (range 8 to 58) during a mean followup of 2.8 ± 2.3 months (range 1 to 10), resulting in a 51% mean decrease in prostate volume, as measured by transrectal ultrasound. There was no significant intraoperative bleeding and no change in serum sodium postoperatively. One patient sustained a small capsular perforation with persistent venous bleeding, which could not be controlled with KTP laser. Because of poor vision, the procedure was completed with electroresection. Complications included mild dysuria in 2 patients (11%) and mild hematuria longer than 2 weeks in duration in 4 (22%). Conclusions: Photoselective prostate vaporization can effectively vaporize obstructive benign and malignant prostatic tissue, leading to a significant decrease in the total volume of the treated prostate (p = 0.000). References 1 : High power potassium-titanyl-phosphate laser vaporization prostatectomy. J Urol2000; 163: 1730. Link, Google Scholar 2 : High-power (60-watt) potassium-titanyl-phosphate laser vaporization prostatectomy in living canines and in human and canine cadavers. Urology1997; 49: 703. Google Scholar 3 : High-power potassium-titanyl-phosphate (KTP/532) laser vaporization prostatectomy: 24 hours later. Urology1998; 51: 254. Google Scholar 4 : Photoselective vaporization of the prostate: initial experience with a new 80W KTP laser for the treatment of benign prostate hyperplasia. J Endourol2003; 17: 93. Google Scholar From the Department of Urology, Oakwood Annapolis Hospital, Wayne, Michigan© 2005 by American Urological Association, Inc.FiguresReferencesRelatedDetailsCited byElgin R, Pacha T, Di Loreto R and George V (2018) Office Based Photovaporization of the Prostate for Benign Prostatic Hyperplasia: Outcomes and Patient SatisfactionUrology Practice, VOL. 3, NO. 1, (70-75), Online publication date: 1-Jan-2016.Jackson R, Casanova N, Wallner L, Dunn R, Hedgepeth R, Faerber G and Wei J (2018) Risk Factors for Delayed Hematuria Following Photoselective Vaporization of the ProstateJournal of Urology, VOL. 190, NO. 3, (903-908), Online publication date: 1-Sep-2013. Volume 173Issue 2February 2005Page: 511-513 Advertisement Copyright & Permissions© 2005 by American Urological Association, Inc.Keywordsprostatic hyperplasiaurination disorderslaser surgeryprostateprostatectomyMetricsAuthor Information SURENDRA M. KUMAR More articles by this author Expand All Advertisement PDF downloadLoading ...