results the mean age was 45.6 ± 13.1 (24 to 74 ) years. twenty-two were normal responders [considered as non-organic causes (37.3% of all patients)], 27 were classified as venous leakage, eight had arterial insufficiency and two were mixed type. maximum psv occurred before the fifth minute in 47 patients (92.2%). eight patients completed all phases of erection in the first 5 minutes. we defined...

Sir, Non-inflammatory retiform (net-like or livedoid) purpura (NIRP) is a clinical pattern produced by small vessel occlusion in dermis. Several disorders such as coagulation abnormalities, cold-related gelling, microorganism vessel invasion or embolization leading to microvascular occlusion may share in common a clinical picture of localized or generalized NIRP (1). NIRP lesions are usually sh...

The Effects of Intra-Arterial Histamine on Blood Flow in the Internal and External Carotid Artery of Man • Both internal and external carotid artery phasic blood flow and arterial pressure were measured in five patients during a control period and after the intra-arterial injection of 13.8 fig of histamine phosphate into each vessel. In the internal carotid artery, flow for the group increased ...