A variety of technique of dynamic pharmacocavernosometry have been described to evaluated cavernous veno-occlusive function; however, there is no uniquely reliable and standard method so far. After intracavernous(IC) injection of 45 mg papaverine
and
2.5 mg phentolamine, we performed gravity cavernosometry(GC) and pump cavernosometry(PC), ie, measurement of saline infusion rate needed to obtain and to maintain an erection and measurement of pressure decay for 30 seconds and pressure drop time
to 75
mmHg when pump was turned off at 150 mmHg IC pressure. Final diagnosis of venous leakage was made by each method to diagnose venous leakage and correlation among these methods were analyzed. The etiology of impotence in 45 patients studied was
psychogenic in 8, venogenic in 21, combined arteriogenic and venogenic in 16. The measurement of induction flow rate was less reliable(p<0.05) for the diagnosis of venous leak than the other methods of PC and GC(p<0.01). The standard deviations
of
the
induction and maintenance flow rate and pressure drop time were similar to even higher than mean values. There was correlation among all these methods, Therefore, GC and PC, particularly measurement of the intracorporeal pressure decay are
believed
to
be valuable methods for diagnosis of the corporal-venous leakage.
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