Techniques in endoscopic lithotripsy using pulsed dye laser

Grasso, Michael; Shalaby, Mohamed; Akkad, M. El; Bagley, Demetrius H.

doi:10.1016/0090-4295(91)80210-x

Cited by 33 publications

(7 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Patients with urinary schistosomiasis were not excluded but rather carefully evaluated to rule out distal ureteric obstruction that will constitute a clear contraindication to ESWL. We noted ureteric strictures in 21% of our patients, this is in accord with the reported incidence of obstructive uropathy that is noted in up to 30–50% of schistosomiasis cases [5, 19]. However, the majority of the strictures in our group of patients were diagnosed after patients failed to pass stone fragments in spite of careful pre–ESWL evaluation.…”

Section: Discussionsupporting

confidence: 73%

“…Adequate pulverization of stones is required to achieve a stone–free state after ESWL. The majority of stones in our group, as expected in schistosomiasis [19], were of calcium oxalate monohydrate. Although, the stone tends to fragment into large pieces rather than into fine sand–like particles when higher levels of voltage are used and hence reflect on the stone–free rates [21].…”

Section: Discussionmentioning

confidence: 52%

See 1 more Smart Citation

Extracorporeal Shockwave Lithotripsy for Ureterolithiasis in Patients with Urinary Bilharziasis: Efficacy and Variables That Influence Treatment Outcome

Talic¹,

Hassan²,

El-Faqih³

et al. 2000

European Urology

View full text Add to dashboard Cite

Section: Discussionsupporting

confidence: 73%

Section: Discussionmentioning

confidence: 52%

Extracorporeal Shockwave Lithotripsy for Ureterolithiasis in Patients with Urinary Bilharziasis: Efficacy and Variables That Influence Treatment Outcome

Talic¹,

Hassan²,

El-Faqih³

et al. 2000

European Urology

View full text Add to dashboard Cite

“…The coumarin pulsed dye laser (504 nm) is generally less efficient for dark brushite or calcium oxalate monohydrate stones. It requires a higher energy delivery system and higher power for fragmentation [11,12]. Our experience with the holmium laser indicated it does not require these adjustments in the power setting.…”

Section: Discussionmentioning

confidence: 94%

Clinical experience with holmium:YAG laser lithotripsy of ureteral calculi

Yiu¹,

Liu²,

Yiu³

et al. 1996

Lasers Surg. Med.

View full text Add to dashboard Cite

Background and Objective We recently acquired a holmium:YAG laser with wavelength of 2.1 μm. We would like to report our success in using this machine for laser lithotripsy. Study Design/Patients and Methods: Forty‐seven ureteroscopic laser lithotripsies were performed in 44 patients (three bilateral stones) over a 6 month period. Four stones were in the upper ureter, six in the middle ureter, and 37 in the lower ureter. The holmium laser beam was delivered via a 400 micron flexible quartz fiber through a 7 Fr rigid ureteroscope during the procedure. The stone size varied from 4 to 21 mm. Results The success rate was 91%. Most of the stones were fragmented to less than 2 mm in size. Larger fragments were removed with a Dormia basket (six cases) for stone clearance. Endoscopic laser ureterotomy was performed in two patients with stricture below the stone. One patient required conversion to open ureterolithotomy, and three required subsequent Extracorporeal Shock Wave Lithotripsy. A low complication rate was observed. Conclusion The pulsed holmium:YAG laser is safe and effective for use in ureteroscopic laser lithotripsy. © 1996 Wiley‐Liss, Inc.

show abstract

“…As opposed to ultrasonic or electrohydraulic lithotripters, which may cause thermal dam¬ age to the ureter, the pulsed-dye laser is based on completely thermal-free properties. 3,4 As with any new technology, innovative applications grow with experience. This series of patients represents a progression of new techniques using the pulsed-dye laser, not only in the urinary tract, but also in the biliary tree.…”

Section: Introductionmentioning

confidence: 98%

Endoscopic Pulsed-Dye Laser Lithotripsy: 159 Consecutive Cases

Grasso¹,

Bagley²

1994

Journal of Endourology

Self Cite

View full text Add to dashboard Cite

The application of the coumarin-based pulsed-dye laser has allowed the endoscopist to employ more delicate instruments with smaller working channels in treating urinary and biliary calculi. We have previously reported our first 100 patients treated with this laser. In 159 consecutive patients, 176 renal, ureteral, bladder, urethral, and biliary calculi with an average size of 1.6 cm were treated with the pulsed-dye laser in antegrade or retrograde fashion using rigid (6.9F-11.5F) or flexible (8.5-10.5F) endoscopes. The laser fibers ranged from 200 to 550 microns and the energy from 60 to 200 mJ. In some cases, the laser was used as an adjunct to percutaneous nephrolithotomy for staghorn calculi, to fragment bladder calculi without anesthesia, to free encrusted ureteral catheters, or as a lithotrite in the biliary tree. Only 4 stones (2.5%) could not be fragmented. There were no complications directly attributable to the use of laser energy. The pulsed-dye laser is safe and efficacious as an endoscopic lithotrite.

show abstract

Techniques in endoscopic lithotripsy using pulsed dye laser

Cited by 33 publications

References 10 publications

Extracorporeal Shockwave Lithotripsy for Ureterolithiasis in Patients with Urinary Bilharziasis: Efficacy and Variables That Influence Treatment Outcome

Extracorporeal Shockwave Lithotripsy for Ureterolithiasis in Patients with Urinary Bilharziasis: Efficacy and Variables That Influence Treatment Outcome

Clinical experience with holmium:YAG laser lithotripsy of ureteral calculi

Endoscopic Pulsed-Dye Laser Lithotripsy: 159 Consecutive Cases

Contact Info

Product

Resources

About