A Clinical Observation on the Nephrectomized Patients / 대한비뇨기과학회지

Since Gustave Simon performed the first planned nephrectomy in l869, it has been one of the most important procedures in the field of urologic surgery. Various indications for this procedure have been proposed and a variety of methods have been introduced, thus complications of this surgery have been varied according to the particular methods used. A .clinical observation on the 153 patients nephrectomized in the Department of Urology, Kyungpook National University Hospital, during the period from January, 1962 to December, l97l was presented with a brief review of the literature. The results were as follows: 1) The total number of out-patients during the period was estimated to ll,7l3 and of which nephrectomies were performed in 153 of the 740 total urologic operations (20.68%). 2) Age distribution showed the highest in 20's with 26.15, and the youngest case was observed at the age of 2. the oldest at 65. Male outnumbers female with the ratio of 1.7:1. 3) The causative lesions of the kidney showed the highest in tuberculosis (42.5%), renal stone (19.6%), renal injury (10.5%), renal tumor (10.5%). hydronephrosis (6.5%) in its descending order. 4) Lumbar approach with resection of 12th rib was the most frequently employed (56.2%). and complications were seen in 20 of the 80 cases. Of which, 6 cases of pneumothorax was the highest. 5) Eighty five cases (55.6%) were released within two weeks after surgery and only four cases were remained more than 4 weeks after surgery.

A Case Report of Giant Hydronephrosis / 대한비뇨기과학회지

A case of 23 year old male having giant hydronephrosis (7,100ml) associated with congenital stricture at ureteropelvic junction was presented with a brief review of the literatures. This case was confirmed with antegrade pyelography and ureteronephrectmy was performed.

An Observation on Sperm Disappearance from the Ejaculate Following Vasectomy / 대한비뇨기과학회지

Vasectomy is one of the accepted simple procedure as a contraceptive method. However, there have been no reliable reports on the rate of sperm disappearance from the ejaculate following vasectomy. Rieser found the 14 of the 21 patients with follow-up semen studies required an average of 8 weeks to be azoospermic, and Freund and Davis described that sperm free semen was noted after 6 to 10 ejaculations following bilateral vasectomy. In order to determine the exact end point in terms of the frequency of ejaculations after vasectomy to be sperm free in the ejaculate, a clinical observation was made on the 50 vasectomized patients for the last 3 years. Bilateral vasectomy was performed through a midline incision in the scrotal raphe under local anesthesia (2% procaine). Each semen specimen was collected by coitus using condom. The results obtained were as follows; l) The fourth decade was the most prevalent age group to have had vasectomy(44 cases). The mean number of children was 3. 3 (male 2.2, female 1.1). The 25 patients (38.5%) had two sons and a daughter, and there were no patients without a son. 2) The postoperative first specimen was obtained in all of the 50 cases, the second in 35, the third in 27. the fourth in 20, the fifth in 15, the sixth in 10, the seventh in 3, and the eighth in only one. 3) The meat volume of the semen was not varied with the frequency of ejaculations. The average number of the spermatozoa on the first ejaculate following vasectomy was 43 millions, 23 millions on the second, 16 millions on the third, and 2 millions on the fourth. 4) On the rate of sperm free in the ejaculates in terms of the number of the ejaculations, 7.4 per cent became azoospermic on the third, 20 per cent on the fourth, 33 per cent on the fifth, 60 per cent on the sixth, and 67 per cent on the seventh ejaculation.