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Percutaneous nephrolithotomy (PCNL) is a minimally-invasive procedure to remove stones from the kidney by a small puncture wound (up to about 1 cm) through the skin. It is most suitable to remove stones of more than 2 cm in size and which are present near the pelvic region. It is usually done under general anesthesia or spinal anesthesia.
Ureteroscopy is an examination of the upper urinary tract, usually performed with a ureteroscope that is passed through the urethra and the bladder, and then directly into the ureter. [1] The procedure is useful in the diagnosis and treatment of disorders such as kidney stones and urothelial carcinoma of the upper urinary tract. [ 1 ]
Pulsed dye lasers have been used with fiber diameters of 200–550 microns [8] for lithotripsy of biliary and urinary stones. [9] Ho:YAG lasers have wavelength of 2100 nm (infrared) and are used for medical procedures in urology and other areas. They have qualities of CO 2 and Nd:Yag lasers, with ablative and coagulation effects. [10]
Lithotripsy replaced using lithotrites as the most common treatment beginning in the mid 1980s. In extracorporeal shock wave lithotripsy (ESWL), external shockwaves are focused at the stone to pulverize it. [6] Ureteroscopic methods use a rigid or flexible scope to reach the stone and direct mechanical or light energy at it. Endoscopy can use ...
Treatment of kidney stones in children is similar to treatments for adults, including shock wave lithotripsy, medication, and treatment using scope through the bladder, kidney or skin. [131] Of these treatments, research is uncertain if shock waves are more effective than medication or a scope through the bladder, but it is likely less ...
If a patient has a stone lodged higher in the urinary tract, the physician may use a much finer calibre scope called a ureteroscope through the bladder and up into the ureter. (The ureter is the tube that carries urine from the kidney to the bladder.)