文档介绍：Effects of captopril on Specific Harmonic Indexes of
the Peripheral Pressure Pulse Waveform
Sheng-Hung Wang, Wei-Kung Wang Tse-Lin Hsu, Ming-Yie Jan,
Department of Electrical Engineering Institute of Physics
National Taiwan University Academia Sinica
Taipei, Taiwan Taipei, Taiwan
******@.tw
Yuh-Ying Lin Wang
Department of Physics
National Taiwan Normal University
Taipei, Taiwan
Abstract—There were evidences that the blood pressure Our previous studies on vasoconstrictors showed that both
measured on the radial artery under some vasodilators angiotensin and vasopressin increased the blood pressure and
treatments will overestimate than which measured on the central decreased the harmonic proportion of the fourth harmonic (C4)
artery. Our previous studies infer that the harmonic proportion of the pressure pulse[9], defined as 100% × (A4/A0), where A4
of the 4th harmonic (C4) of the peripheral pressure pulse and A0 are the amplitudes of the fourth harmonic and the DC
waveform could be an index related to the peripheral ponent of the pulse waveform, respectively. In contrast,
tone. In this study, we used a vasodilator drug, captopril to verify Fourier transformed some of the pressure waveforms on
the relationship between C4 and vasoactive drug. Thirteen male
publishing reports for hypertension treatment studies on human
Wista