Application of Laser in the Field of Urology

Abstract

The possibility of breakdown of calculi of the urinary treat by the use of the CO₂ laser knife and Nd-YAG laser beam was tested using calculi extracted by surgical operation.
It was felt on the whole that the CO₂ laser had a strong perforating power and it was possible to perforate the calculus but its destroying power was weak and the Nd-YAG laser broke down the surface and the perforating power was weak.
It was considered that these actions would decrease in water.
It was also considered that the vesical wall would be damaged even if perforation takes place, so the use of the laser appears to be limited and still restricted to experimental stage for the time being.
We have tried the CO₂ laser knife in renal lithotomy and operation for phimosis and others and found union of the sections was good and the scar of the incision line was small but the hemostatic effect was not so marked as had been anticipated.