E. J. H.
Two Japanese investigators have tried to improve the diagnostic differentiation of organic and emotional impotence with studies of penile blood flow (1). Their method is based on this hypothesis: in emotional impotence the spinal reflex control of arterial blood flow into the penile venous sinusoids is normal, whereas in organic impotence the control of blood flow is impaired by lesions at the sacral cord or in the nervi erigentes. The penis is put into a cylindrical collimator for estimates of responses of blood flow (counts of 131I-human albumin in the penile circulation) to a test dose of a yohimbine-strychnine preparation,
H. EJ. -gram Positive. Ann Intern Med. ;74:794. doi: 10.7326/0003-4819-74-5-794
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Published: Ann Intern Med. 1971;74(5):794.
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