An Experimental Study of Partial Nephrectomy with Application of Microwave Tissue Coagulator (M.T.C.) to Mongrel Dogs / 대한비뇨기과학회지

The Microwave Tissue Coagulator (M.T.C.) is one of the most sophisticated systems that have been developed and contributing to the modern medical treatments and practices. It is equipped with a magnetron specially developed and designated for medical purpose and with help of this oscillation device, produces microwave electricity of fine and high quality in frequency of 2,450 MHz with 12 cm of each wave in length. The power output can be adjusted upto the maximum of 100 watts. The microwave current, once generated by the magnetron is delivered tn a monopolar electrode through coaxial cable, and then proceeded to the electrode is picked into under living organic tissue and switched on to emit microwave current, the organic substances in the living organic tissue are attracted to the electromagnetic force and inclined to make a congestion in and around the field of force near the electrode tip. In the meantime, reacting to the extremely high frequency of energy shifting of 2,450 x 10(6) times in a second within itself the electrically loaded tip starts to be heated up, and this heat, in turn, acts upon organic tissues and effects their coagulation. It is known that this M.T.C. application has been practiced for a quite some time these days in the operation for the diseases of liver and spleen in surgical part, and also in the management of gastrointestinal bleeding in medical part. For further advent in the line, I had intended to try M.T.C. on partial nephrectomy with an aim of developing an effective new way of revivifying treatment of renal disease. As a mean of basic and preliminary, study for this project, an adult mongrel dogs had been experiment. The renal tissue of dogs had been applied with M.T.C. and made it to be in coagulated condition, and then the partial nephrectomy was performed. The objects had been closely examined histologically and the healing processes carefully checked through periodic autopsy of the dogs. The result of the experiment had been rather encouraging in that no significant unfavorable granulomatous changes such as proliferation of capillaries, fibrosis, etc. could be traced in the object, and in that the affected tissues were obsessed to have proceeded a smooth and gradual contraction process to recover their normal conditions. As conclusion, it is able to state that the application of M.T.C. on partical nephrectomy affects organic tissues only to a negligible degree, and further pursuance in my attempt could be very succesful one.

Clinical Studies on the Effects of Acupuncture and Transcutaneous Electric Nerve Stimulation (TENS) on the Neurogenic Bladder / 全日本鍼灸学会雑誌

The effects of transsomatic physical therapies (acupuncture and TENS) on the neurogenic bladder were examined in 73 patients (50 men and 23 women) aged 15-78 years old (mean, 59.8 years old). The capacity of the bladder and residual urine volume were observed by cystometry, uroflowmetry and by determining the urethral pressure profile. The following results were obtained:<br>1. In the patients with dysuria due to hypertonus of the sympathetic nerve system, the tonus of the sphincter urethrae and urethral resistance decreased due to the effects of acupuncture anesthesia, resulting in a decline in residual urine volume and improved urination in 71.4%.<br>2. Urethral resistance also decreased, in the patients with hypotonic bladder, resulting in a decline in residual urine volume and improved urination in 75%.<br>3. Acupuncture anesthesia by applying TENS seems to be clinically significant for improving urination in the neurogenic bladder.