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Research Article
The Effect of Viagra on Autonomic Function Using Spectral Analysis and Approximate Entropy Method
Author(s): Ahmed KamalAhmed Kamal
Objective: Autonomic nervous system involvement in patients with Erectile Dysfunction (ED) has shown conflicting results. Our main purpose was to assess the effect of treatment with Viagra on autonomic function of group of ED patients in comparison with another group with control subjects with ED treated by herbal substances by measuring the frequency gain response of the two groups. Other aim of this study was to determine wither the duration of Viagra treatment correlated with measures of heart rate variability signal (HRV) using approximate entropy index (ApEn).
Methods: Twenty two patients treated for ED by Viagra (100 mg) and twenty one matched control subjects treated ED by herbal were evaluated at Erectile Dysfunction Center, Johns Hopkins Hospital, Maryland, USA during 2012/ 2013 by measuring the breathing at different rates and HRV sig.. Read More»
DOI:
10.4172/2376-0281.1000156
International Journal of Neurorehabilitation received 1078 citations as per Google Scholar report
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