[Test with vasoactive drugs: its predictive value in the diagnosis of erectile sexual dysfunction of venous origin]. / Test con drogas vasoactivas: su valor predictivo en el diagnóstico de la disfunción sexual eréctil de origen venoso.

The practicability and sensitivity of the test with vasoactive drugs, the first method performed in our flow studies, make it an invaluable method for orienting the diagnosis. Our findings show that in 65% of the patients with a partial response to the drug-induced erectile test, dysfunction may arise from pure or associated venous leakage, which must be confirmed by dynamic cavernosometry and/or cavernosography.

[Flow studies in patients with sexual erectile dysfunction. Review of the physiology and the adopted method]. / Flujograma de estudio en el paciente con disfunción sexual eréctil. Revisión de la fisiología y metodología adoptada.

Further insight into the physiology of erection acquired in recent years had led to the development of new methods that have enhanced the evaluation of erectile dysfunction. These new methods will permit a more precise diagnosis and, consequently, the management of this condition can be based on scientific and not empirical methods. To date, many questions remain unanswered and many points have not been elucidated. Using a precise methodology will permit us to corroborate or correct what has been done up until now and to develop new methods of investigation. The present study briefly reviews the physiology of erection and describes a method we routinely use.

[Renal transplantation: surgery in the patient with a functioning kidney]. / Trasplante renal: cirugía en el paciente con riñón funcionante.

One hundred and seven surgical procedures performed on 98 patients with stable renal allograft function are analyzed. They represent 35.5% of 276 patients who underwent renal transplants. The surgical procedures were not related to the graft or its arteries and vein. The procedures were gynecologic 8, urologic 24, thoracic 6, ophthalmologic 8, neurosurgical 2, general surgery 37, orthopedic 17 and plastic surgery 5. Thirty-five (32.7%) were emergency and 72 (67.3%) elective procedures. Twenty-six patients were operated on for infections. The overall operative mortality rate was 15.3%. It was significantly higher in emergency procedures (34.28%) than in elective surgery (4.16%).

[Is it useful to ask questions to assess the strength of urination flow?]. / Es útil el interrogatorio para valorar la fuerza del chorro miccional?

In order to determine the value of the interview conducted to assess the micturitional stream of our patients, we compared in 200 cases what the patients said about their micturition against their maximum flow rate (QMx). We demonstrated that 79% of those who said they voided with a "bad stream" had QMx less than or equal to 10 ml/sec. Only 65% of those who said they voided with a "good stream" had a QMx less than or equal to 15 ml/sec. Of those with QMx less than or equal to 10 ml/sec. (73 patients), only 15% had reported a "bad stream". Thus, we believe it is not reliable and of little interest to ask our patients about the strength of their micturitional stream. It would only be useful in those who reported a "bad voiding". To our knowledge, this is the first study that documents the discrepancy between data from the interview and the maximum flow rate.