Evaluation of penile hemodynamic status of patients with erectile dysfunction

Abstract

Objective To evaluate the efficacy of Doppler ultrasound(DUS)in observing penile hemodynamic status of patients with erectile dysfunction(ED)and to give the advices for treatment.Methods 32 patients with erectile dysfunction were measured using the International Index of Erectile Function(IIEF),which erection function were 12.1-15.7(13.6 ±5.1).The inner diameters(Id),the peak systolic velocities(PSV),end diastolic velocity(EDV),resistance index(RI)of penile caverous arteries were measured in the flaccid phase.10 minutes after intra-cavernous injection of the combination of papaverine-phentolamine(30 mg/1 rag),The Id,PSV,EDV,RI of penile caverous arteries,the Id and velocity of dorsal penile vein were measured and recorded again.8 cases of non-vascular ED were taken as control group.All data analyzed by software of SPSS 12.0.Results All the PSVs in non-vascular ED were ≥35 cm/s,RI≥1.0,with intermittent slow dorsal venous flow.All the PSVs of 15 cases with arterial ED were less than 25 cm/s,with intermittent slow dorsal venous flow.All the EDVs in 6 cases of venous ED could be detected with consistent slow dorsal venous flow.All the PSVs of 3 cases with mixed ED were less than 25 cm/s,with consistent slow dorsal venous flow.Conclusion Combining the efficacy of Doppler ultrasound(DUS)with IIEF can diagnose and subtype ED. Key words: Erectile dysfunction(ED); Doppler ultrasound(DUS); Single intracavernous injection(ICI); The combination of papaverine-phentolamine