Photoplethysmographic Waveforms Recorded from Patients with Untreated Hypertension

Yanchun Hu; Yanxia Hu; Shenju Song

doi:doi:10.11648/j.cmr.20150405.18

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Photoplethysmographic Waveforms Recorded from Patients with Untreated Hypertension

Yanchun Hu, Yanxia Hu, Shenju Song

Published in Clinical Medicine Research (Volume 4, Issue 5)

Received: 13 August 2015 Accepted: 22 August 2015 Published: 2 September 2015

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Abstract

The goal of this study was to establish whether changes in microvascular perfusion play an important role in the development of hypertension. To achieve this goal, we measured the photoplethysmographic waveforms recorded from the fingertips of patients with untreated hypertension. The photoplethysmographic waveforms were obtained from 60 healthy, normotensive male controls (NTs) and 30 untreated hypertensive male patients (HTs). The NTs were divided into two groups: a younger NT group (age 20 to 40 years, 30 individuals) and an older NT group (age 40 to 60 years, 30 individuals). The PPG waveform displayed a steep rise and a notch on the falling slope in the younger NT group. And for younger subjects, there were two positive waves (P1 and P2) and one negative wave (V).In the older NT group, a more gradual rise and fall was observed. For the HT group, no pronounced dicrotic notch was observed. A program was used to calculate the P2/P1 and P2/V ratios. The P2/P1 and P2/V ratios can indicate the perfusion to the fingertips during cardiac diastole. There were no significant differences in P2/P1 between the older NT group and HTs (0.37±0.07 versus 0.33±0.05, p>0.05).The P2/V ratios were significantly different between the older NT group and HTs (0.93±0.11 versus 0.59±0.08, p<0.05). These results indicate that there is a decrease in perfusion to the fingertips in hypertensive subjects during cardiac diastole.

Published in	Clinical Medicine Research (Volume 4, Issue 5)
DOI	10.11648/j.cmr.20150405.18
Page(s)	163-167
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2015. Published by Science Publishing Group

Keywords

Hypertension, Microcirculation, Systemic Vascular Resistance, Endothelium, Arteriovenous Anastomoses, Photoplethysmography

References

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APA Style

Yanchun Hu, Yanxia Hu, Shenju Song. (2015). Photoplethysmographic Waveforms Recorded from Patients with Untreated Hypertension. Clinical Medicine Research, 4(5), 163-167. https://doi.org/10.11648/j.cmr.20150405.18

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ACS Style

Yanchun Hu; Yanxia Hu; Shenju Song. Photoplethysmographic Waveforms Recorded from Patients with Untreated Hypertension. Clin. Med. Res. 2015, 4(5), 163-167. doi: 10.11648/j.cmr.20150405.18

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AMA Style

Yanchun Hu, Yanxia Hu, Shenju Song. Photoplethysmographic Waveforms Recorded from Patients with Untreated Hypertension. Clin Med Res. 2015;4(5):163-167. doi: 10.11648/j.cmr.20150405.18

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@article{10.11648/j.cmr.20150405.18,
  author = {Yanchun Hu and Yanxia Hu and Shenju Song},
  title = {Photoplethysmographic Waveforms Recorded from Patients with Untreated Hypertension},
  journal = {Clinical Medicine Research},
  volume = {4},
  number = {5},
  pages = {163-167},
  doi = {10.11648/j.cmr.20150405.18},
  url = {https://doi.org/10.11648/j.cmr.20150405.18},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.cmr.20150405.18},
  abstract = {The goal of this study was to establish whether changes in microvascular perfusion play an important role in the development of hypertension. To achieve this goal, we measured the photoplethysmographic waveforms recorded from the fingertips of patients with untreated hypertension. The photoplethysmographic waveforms were obtained from 60 healthy, normotensive male controls (NTs) and 30 untreated hypertensive male patients (HTs). The NTs were divided into two groups: a younger NT group (age 20 to 40 years, 30 individuals) and an older NT group (age 40 to 60 years, 30 individuals). The PPG waveform displayed a steep rise and a notch on the falling slope in the younger NT group. And for younger subjects, there were two positive waves (P1 and P2) and one negative wave (V).In the older NT group, a more gradual rise and fall was observed. For the HT group, no pronounced dicrotic notch was observed. A program was used to calculate the P2/P1 and P2/V ratios. The P2/P1 and P2/V ratios can indicate the perfusion to the fingertips during cardiac diastole. There were no significant differences in P2/P1 between the older NT group and HTs (0.37±0.07 versus 0.33±0.05, p>0.05).The P2/V ratios were significantly different between the older NT group and HTs (0.93±0.11 versus 0.59±0.08, p<0.05). These results indicate that there is a decrease in perfusion to the fingertips in hypertensive subjects during cardiac diastole.},
 year = {2015}
}

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TY - JOUR
T1 - Photoplethysmographic Waveforms Recorded from Patients with Untreated Hypertension
AU - Yanchun Hu
AU - Yanxia Hu
AU - Shenju Song
Y1 - 2015/09/02
PY - 2015
N1 - https://doi.org/10.11648/j.cmr.20150405.18
DO - 10.11648/j.cmr.20150405.18
T2 - Clinical Medicine Research
JF - Clinical Medicine Research
JO - Clinical Medicine Research
SP - 163
EP - 167
PB - Science Publishing Group
SN - 2326-9057
UR - https://doi.org/10.11648/j.cmr.20150405.18
AB - The goal of this study was to establish whether changes in microvascular perfusion play an important role in the development of hypertension. To achieve this goal, we measured the photoplethysmographic waveforms recorded from the fingertips of patients with untreated hypertension. The photoplethysmographic waveforms were obtained from 60 healthy, normotensive male controls (NTs) and 30 untreated hypertensive male patients (HTs). The NTs were divided into two groups: a younger NT group (age 20 to 40 years, 30 individuals) and an older NT group (age 40 to 60 years, 30 individuals). The PPG waveform displayed a steep rise and a notch on the falling slope in the younger NT group. And for younger subjects, there were two positive waves (P1 and P2) and one negative wave (V).In the older NT group, a more gradual rise and fall was observed. For the HT group, no pronounced dicrotic notch was observed. A program was used to calculate the P2/P1 and P2/V ratios. The P2/P1 and P2/V ratios can indicate the perfusion to the fingertips during cardiac diastole. There were no significant differences in P2/P1 between the older NT group and HTs (0.37±0.07 versus 0.33±0.05, p>0.05).The P2/V ratios were significantly different between the older NT group and HTs (0.93±0.11 versus 0.59±0.08, p<0.05). These results indicate that there is a decrease in perfusion to the fingertips in hypertensive subjects during cardiac diastole.
VL - 4
IS - 5
ER -

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Author Information

Yanchun Hu

Yanchun Hu, The Fifth People's Hospital, Jinan City, China
Yanxia Hu

Yanxia Hu, Center for Disease Control and Prevention, Jinan City, China
Shenju Song

Shenju Song, The Fifth People's Hospital, Jinan City, China

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APA Style

Yanchun Hu, Yanxia Hu, Shenju Song. (2015). Photoplethysmographic Waveforms Recorded from Patients with Untreated Hypertension. Clinical Medicine Research, 4(5), 163-167. https://doi.org/10.11648/j.cmr.20150405.18

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ACS Style

Yanchun Hu; Yanxia Hu; Shenju Song. Photoplethysmographic Waveforms Recorded from Patients with Untreated Hypertension. Clin. Med. Res. 2015, 4(5), 163-167. doi: 10.11648/j.cmr.20150405.18

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AMA Style

Yanchun Hu, Yanxia Hu, Shenju Song. Photoplethysmographic Waveforms Recorded from Patients with Untreated Hypertension. Clin Med Res. 2015;4(5):163-167. doi: 10.11648/j.cmr.20150405.18

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@article{10.11648/j.cmr.20150405.18,
  author = {Yanchun Hu and Yanxia Hu and Shenju Song},
  title = {Photoplethysmographic Waveforms Recorded from Patients with Untreated Hypertension},
  journal = {Clinical Medicine Research},
  volume = {4},
  number = {5},
  pages = {163-167},
  doi = {10.11648/j.cmr.20150405.18},
  url = {https://doi.org/10.11648/j.cmr.20150405.18},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.cmr.20150405.18},
  abstract = {The goal of this study was to establish whether changes in microvascular perfusion play an important role in the development of hypertension. To achieve this goal, we measured the photoplethysmographic waveforms recorded from the fingertips of patients with untreated hypertension. The photoplethysmographic waveforms were obtained from 60 healthy, normotensive male controls (NTs) and 30 untreated hypertensive male patients (HTs). The NTs were divided into two groups: a younger NT group (age 20 to 40 years, 30 individuals) and an older NT group (age 40 to 60 years, 30 individuals). The PPG waveform displayed a steep rise and a notch on the falling slope in the younger NT group. And for younger subjects, there were two positive waves (P1 and P2) and one negative wave (V).In the older NT group, a more gradual rise and fall was observed. For the HT group, no pronounced dicrotic notch was observed. A program was used to calculate the P2/P1 and P2/V ratios. The P2/P1 and P2/V ratios can indicate the perfusion to the fingertips during cardiac diastole. There were no significant differences in P2/P1 between the older NT group and HTs (0.37±0.07 versus 0.33±0.05, p>0.05).The P2/V ratios were significantly different between the older NT group and HTs (0.93±0.11 versus 0.59±0.08, p<0.05). These results indicate that there is a decrease in perfusion to the fingertips in hypertensive subjects during cardiac diastole.},
 year = {2015}
}

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