Extensive neodymium-yag photoirradiation of the prostate in men with obstructive prostatism

Shanberg, Allan M.; Lee, Ivan S.; Tansey, Larry A.; Sawyer, Donald E.

doi:10.1016/0090-4295(94)90233-x

Cited by 44 publications

(14 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although this report describes the complete clinical development and learning period of a new procedure, the results obtained in this unselected group of patients and those reported by other authors using interstitial laser coagulation (ILC) [12,35] compare favorably with those described for TURP [19,34] and other minimally invasive treatments employing lasers, such as transurethral ultrasound-guided laser-induced prostatectomy (TULIP) [24,41], visual laser ablation of the prostate (VLAP) [3], or ILC with bare fibers [16,26] in early and more recent [2,4,18,25,36,38,42,43] series.…”

Section: T H E a V E R A G E A U A S Y M P T O M Scoressupporting

confidence: 57%

“…In our series, no patient suffered persistent incontinence. Postoperative irritative symptoms, which are frequently observed in TULIP and VLAP (30%-85.7%) [2,4,25,36,38,42], are much less likely to occur in ILC (12.6%). Since the event of irritative symptoms after ILC was usually connected to tissue sloughing, it most probably indicated urethral coagulation.…”

Section: T H E a V E R A G E A U A S Y M P T O M Scoresmentioning

confidence: 99%

“…113 Suprapubic catheter times and uncomplicated urinary tract infections after ILC are of the same magnitude as those after other laser treatments of the prostate. The suprapubic catheter was left in situ after T U L I P for an average of 11.6-18.1 days [36,38,43] and after V L A P for an average of 5.7-14 days [2,38,42]. The incidence of urinary tract infections after T U L I P was 18.7%-21% [25,36].…”

Section: T H E a V E R A G E A U A S Y M P T O M Scoresmentioning

confidence: 99%

See 2 more Smart Citations

Technique and results of interstitial laser coagulation

Muschter¹,

Hofstetter²

1995

World J Urol

View full text Add to dashboard Cite

By use of thermal "ablation" techniques to apply heat to the prostate from the urethra, the coagulation volume is limited by the limited penetration depth of suitable radiation sources, e.g., lasers, and by heat conduction. Secondarily, the coagulated tissue is removed by sloughing. Interstitial heat application was expected to overcome these problems. Our initial in vitro and animal studies using different light guides for interstitial Nd:YAG laser radiation showed that small, carbonized lesions were created by bare fibers, whereas large, homogeneous coagulation zones measuring up to 2 cm in diameter were produced by specially designed ITT (interstitial thermotherapy) fibers, which secondarily resulted in marked volume reduction by atrophy. Further experiments using such applicators resulted in an operation technique suitable for clinical routine in the treatment of symptomatic benign prostatic hyperplasia (BPH). These laser applicators are inserted into the prostate either transurethrally through a cystoscope under direct vision or percutaneously from the perineum under transrectal ultrasound guidance. The number of placements depends on the size and configuration of the gland. Radiation parameters were optimized for each system. To avoid charring, relatively low levels of laser power and long radiation periods (e.g., 7 W for 10 min) or power-formatting programs (e.g., stepwise reduction of power from 20 to 7 W for a total radiation time of 3 min) are applied. Beginning in July 1991, more than 350 unselected patients with BPH were treated with interstitial laser coagulation in our department, of whom 239 were followed for at least 1 year.(ABSTRACT TRUNCATED AT 250 WORDS)

show abstract

Section: T H E a V E R A G E A U A S Y M P T O M Scoressupporting

confidence: 57%

Section: T H E a V E R A G E A U A S Y M P T O M Scoresmentioning

confidence: 99%

Section: T H E a V E R A G E A U A S Y M P T O M Scoresmentioning

confidence: 99%

See 1 more Smart Citation

Technique and results of interstitial laser coagulation

Muschter¹,

Hofstetter²

1995

World J Urol

View full text Add to dashboard Cite

show abstract

“…Kabalin and Gill [6] concluded from a prostate study of 29 dogs that the mean depth of tissue necrosis obtained at 40 W was more than 30% greater than that achieved at 60 W using the right-angle Urolase fiber, whereas the total energy delivery was held constant. Shanberg et al [10] compared three different side-firing devices in a study of 50 consecutive patients using different power settings and different procedures (quadrant technique and painting technique). The overall results with regard to the peak flow were comparable.…”

Section: Discussionmentioning

confidence: 99%

Laser prostatectomy for patients with benign prostatic hyperplasia: a prospective randomized study comparing two different techniques using the Prolase-II fiber

Boon¹,

Swol²,

Venrooij³

et al. 1995

World J Urol

View full text Add to dashboard Cite

Laser prostatectomy for patients with complaints due to benign prostatic hyperplasia is a relatively new treatment option. The most effective procedure for coagulation and vaporization of the prostate is not yet known. In a prospective randomized study of 30 patients, 2 techniques for the delivery of laser energy were compared at 40 W for 90 s. The complications were minimal and antegrade ejaculation was preserved in 15 of 18 potent men. In 24 patients urodynamics evaluation was possible. In both groups a significant reduction in the symptom score was observed. The decrease in detrusor pressure at maximal flow and the increase in flow rate were, however, disappointing. No significant difference in the results was found between the two groups. The power setting needs to be changed in further studies.

show abstract

“…Prostate symptom scores (AUA or IPSS) and objective measures of uroflowmetry and post void residual urine volumes all show clinically significant improvement which is the equivalent of TURP and superior to most other new medical and surgical treatments for BPH (table 2) [10, 13, 14, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43]. Kabalin et al [30]reported that 85% of men undergoing side-firing Nd:YAG laser prostatectomy could expect at least a 50% improvement in either prostate symptom score or peak urinary flow rate.…”

Section: Extended Clinical Experiencementioning

confidence: 99%