World journal of urology
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World journal of urology · Jan 1996
ReviewContemporary criteria for cadaveric organ donation in renal transplantation: the need for better selection parameters.
A major problem facing transplantation is the disparity between the availability of cadaver donors and the number of recipients awaiting transplantation. Efforts to deal with this issue have involved the use of "marginal donors." Results obtained using these organs have often been significantly worse at 1 and 3 years of follow-up. The problem of how to select and utilize these donors is of critical importance to both patients and society. ⋯ Although these appear adequate for predicting the results for the ideal donor, they are not adequate for assessing results for marginal donors. New criteria are of critical importance for better utilization of these organs. The purpose of this review is to examine the current criteria for ideal and marginal donors, review the critical issues to be clarified, and discuss options for improvement results in the future.
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World journal of urology · Jan 1996
Abnormal ultrasonic pattern in contralateral testes in patients with unilateral testicular cancer.
Ultrasound examination and biopsy of the nonaffected testis was performed in 78 men with a unilateral testicular cancer. Each testis was measured in three planes and the volume was calculated using the formula of an ellipsoid. The ultrasonic texture of each testis was given a score ranging from 1 to 5 as follows: 1, very regular; 2, slightly irregular; 3, irregular with small echogenic points; 4, very irregular or with coarse echogenic points; and 5, irregular with demarcated areas raising suspicion of tumor. ⋯ In all, 9 testes contained CIS tubules, and 8 of these were given score 4; 1 testis with CIS in only 5% of the tubules was given score 3. The predictive value of score 4 for the testis to contain CIS was 22.2%, and the predictive value of a score different from 4 that the testis would not contain CIS was 97.6%. We conclude that a large percentage of contralateral testes in men with unilateral testicular cancer have an abnormal echotexture and that CIS is most likely found in testes given score 4 by ultrasound.