Results 181 to 190 of about 10,949 (229)
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Gastrointestinal Endoscopy Clinics of North America, 1993
The surgical treatment of choledocholithiasis has traditionally relied on the exploration of the common bile duct. The advent of laparoscopic cholecystectomy now permits the surgeon direct access to the common bile duct. Currently, one fourth to one third of all cholecystectomies are performed through the laparoscope.
Leon Daykhovsky +2 more
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The surgical treatment of choledocholithiasis has traditionally relied on the exploration of the common bile duct. The advent of laparoscopic cholecystectomy now permits the surgeon direct access to the common bile duct. Currently, one fourth to one third of all cholecystectomies are performed through the laparoscope.
Leon Daykhovsky +2 more
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Erbium: YAG laser Lithotripsy Mechanism
Journal of Urology, 2002We tested the hypothesis that the mechanism of long pulse erbium:YAG laser lithotripsy is photothermal.Human urinary calculi were placed in deionized water and irradiated with erbium:YAG laser energy delivered through a sapphire optical fiber. Erbium:YAG bubble dynamics were visualized with Schlieren flash photography and correlated to acoustic ...
Kin Foong, Chan +6 more
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Intracorporeal Lithotripsy With the Holmium:YAG Laser
Journal of Urology, 1995Preliminary evaluations of the holmium:YAG laser have demonstrated a variety of potential urological applications, including ablation of soft tissue lesions as well as stone fragmentation. We present our experience with the holmium:YAG laser for intracorporeal lithotripsy of urinary calculi.During a 24-month period 75 patients underwent 79 laser ...
H A, Razvi +3 more
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2010
Lasers can be used as intracorporeal lithotriptors for urinary calculi. Laser lithotripsy generally involves one of two mechanisms: photoacoustic or photothermal lithotripsy. Photoacoustic lithotripsy produces large fragments but has difficulty in fragmenting calcium oxalate monohydrate, cystine, and brushite stones.
Andrew J. Marks +4 more
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Lasers can be used as intracorporeal lithotriptors for urinary calculi. Laser lithotripsy generally involves one of two mechanisms: photoacoustic or photothermal lithotripsy. Photoacoustic lithotripsy produces large fragments but has difficulty in fragmenting calcium oxalate monohydrate, cystine, and brushite stones.
Andrew J. Marks +4 more
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2019
This chapter provides an in-depth summary of the application of the holmium:YAG laser in ureteroscopy. First, the basic physics of laser lithotripsy is reviewed. Laser generators and the peculiarities of laser fibers are then discussed, with a special focus on their application in flexible ureteroscopy.
Michael W. Sourial, Bodo E. Knudsen
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This chapter provides an in-depth summary of the application of the holmium:YAG laser in ureteroscopy. First, the basic physics of laser lithotripsy is reviewed. Laser generators and the peculiarities of laser fibers are then discussed, with a special focus on their application in flexible ureteroscopy.
Michael W. Sourial, Bodo E. Knudsen
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Thulium fiber laser lithotripsy
SPIE Proceedings, 2009Complications during laser lithotripsy include optical fiber bending failure resulting in endoscope damage and low irrigation rates leading to poor visibility. Both problems are related to fiber diameter and limited by the Holmium:YAG laser (λ = 2120 nm) multimode beam profile.
Nicholas J. Scott +2 more
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Ureteral Foreign Body after Laser Lithotripsy
Journal of Endourology, 1994We report an unusual ureteral foreign body resulting from a complication of pulsed-dye laser lithotripsy: a retained laser fiber fragment. It was removed with two endoscopic procedures without long-term problems.
N C, Restrepo, J A, Belis
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Ureteroscopy and laser lithotripsy: technologic advancements
World Journal of Urology, 2014Ureteroscopic lithotripsy has evolved since the first reported cases employing rigid rod-lens endoscopes and stiff ultrasonic lithotrites. Fiber optics facilitated rigid endoscope miniaturization and the development of a steerable, deflectable flexible ureteroscopes.
B, Alexander, A I, Fishman, M, Grasso
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[Ureteroscopic lithotripsy using the laser].
Annales d'urologie, 1997The Cagliari urology team is very satisfied with the use of the dye laser for ureteroscopic lithotripsy. This apparatus is recommended in units possessing a well equipped endourology room, otherwise it is simpler to use endoureteric ballistic lithotripsy, which also provides good results.
USAI E, SCARPA RM, DE LISA, ANTONELLO
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2017
The application of lasers for use in the treatment of kidney stones is among the most important developments in the specialty of urology in the last 50 years. As kidney stone prevalence continues to rise from an estimated 5.2% in 1994 to 8.8% in 2012, the importance of the development and evolution of laser technology cannot be understated [1].
Paul Bower, Gyan Pareek
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The application of lasers for use in the treatment of kidney stones is among the most important developments in the specialty of urology in the last 50 years. As kidney stone prevalence continues to rise from an estimated 5.2% in 1994 to 8.8% in 2012, the importance of the development and evolution of laser technology cannot be understated [1].
Paul Bower, Gyan Pareek
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