Results 171 to 180 of about 10,956 (228)
Some of the next articles are maybe not open access.
Journal of Endourology, 2000
Holmium:YAG lithotripsy of uric acid calculi produces cyanide. The laser and stone parameters required to produce cyanide are poorly defined. In this study, we tested the hypotheses that cyanide production: (1) varies with holmium:YAG power settings; (2) varies among holmium:YAG, pulsed-dye, and alexandrite lasers; and (3) occurs during holmium:YAG ...
N S, Corbin +6 more
openaire +2 more sources
Holmium:YAG lithotripsy of uric acid calculi produces cyanide. The laser and stone parameters required to produce cyanide are poorly defined. In this study, we tested the hypotheses that cyanide production: (1) varies with holmium:YAG power settings; (2) varies among holmium:YAG, pulsed-dye, and alexandrite lasers; and (3) occurs during holmium:YAG ...
N S, Corbin +6 more
openaire +2 more sources
AORN Journal, 1993
The high cost of laser equipment and the required specialization of staff members make extension of laser lithotripsy to every hospital impractical. At present, in Ontario, laser lithotripsy is available only in Toronto and Kingston, and ESWL is available only in Toronto and London.
A, Lowe, L S, Gabriel
openaire +2 more sources
The high cost of laser equipment and the required specialization of staff members make extension of laser lithotripsy to every hospital impractical. At present, in Ontario, laser lithotripsy is available only in Toronto and Kingston, and ESWL is available only in Toronto and London.
A, Lowe, L S, Gabriel
openaire +2 more sources
Surgical Clinics of North America, 1992
Laser lithotripsy is an excellent method of fragmenting those biliary stones that cannot be removed easily by less technically advanced methods such as basket extraction. The energy can be delivered through fine flexible fibers, around 200 to 320 microns in diameter, that can be passed through the channels of a variety of small endoscopes.
openaire +2 more sources
Laser lithotripsy is an excellent method of fragmenting those biliary stones that cannot be removed easily by less technically advanced methods such as basket extraction. The energy can be delivered through fine flexible fibers, around 200 to 320 microns in diameter, that can be passed through the channels of a variety of small endoscopes.
openaire +2 more sources
Electrohydraulic Lithotripsy and Laser Lithotripsy
2017Mechanical lithotripsy is usually employed for the fragmentation of large common bile duct (CBD) stones. However, refractory CBD stones, stones larger than 2 cm in size, those firmly impacted, those located above a bile duct stricture, and those located in the intrahepatic bile duct, or cases of Mirizzi syndrome are difficult to treat.
Koji Uno, Kenjiro Yasuda
openaire +1 more source
SPIE Proceedings, 2008
Laser-assisted lithotripsy is a minimally-invasive method for destroying or disruption of human urinary stones. For this purpose laser light delivered through the flexible sealed waveguide or fibre could be utilized. On the output end of the delivery system the laser ligth is focused onto the surface of urinary stones with various size and various ...
Petr Koranda +9 more
openaire +1 more source
Laser-assisted lithotripsy is a minimally-invasive method for destroying or disruption of human urinary stones. For this purpose laser light delivered through the flexible sealed waveguide or fibre could be utilized. On the output end of the delivery system the laser ligth is focused onto the surface of urinary stones with various size and various ...
Petr Koranda +9 more
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source