Assessment of Pulse Wave Velocity in Obese Adults using ECG and Finger Tip Photo Pulse Plethysmography
DOI:
https://doi.org/10.37506/ijop.v7i2.196Keywords:
Pulse wave velocity, obesity, photo pulse plethysmography.Abstract
Introduction
The World Health Organization has recently defined obesity as a disease. Obesity is the result of imbalance between food intake and energy expenditure. Obese individuals with excess fat deposition in the abdominal region are at risk for CHD, hence this study was taken up to see if any association is there between obesity and PWV.
Aim
1. To measure the pulse wave velocity (PWV) in obese individuals.
2. To compare if there is any correlation between pulse pressure, PWV and BMI.
Material and Method
68 obese adults were included for the study, 45 males and 23 females. The study was started after getting clearance from IEC. Informed oral consent was obtained from the subjects. Height and weight of the subjects were recorded. All of them were in the age group of 27 to 62 years and had BMI > 30.
Resting blood pressure was recorded, then Lead II ECG was recorded along with left forefinger tip photo pulse for a period of 15 secs. Distance between the R wave and the foot of the finger pulse was measured in msec. The arm span was measured from the left lateral border of sternum to tip of left forefinger which was taken as distance(D) travelled by the pulse. Using V=? T/D, PWV was calculated.
Results
The mean BP in male and female was 106 ±9 & 94.7 ±4.4 mmHg respectively where as the PWV was 5.8 ± 0.7 mts/sec in male and 5 ± 0.5mts/sec in females which is in normal limits. Analysis of data was done by applying Pearson's Correlation and paired Student T test which revealed there was positive correlation between mean BP versus PWV r = 0.21 & BMI versus mean BP r = 0.26. P value were highly significant which was < 0.001
PWV is influenced by tethering of vessel and stiffening of the arterial wall, so increase in velocity may not be a good index to assess risk factor in all cardiac conditions.
Conclusion
PWV is influenced by tethering of vessel and stiffening of the arterial wall, so increase in velocity may not be a good index to assess risk factor in all cardiac conditions unless it is corrected with respect to age and Blood pressure.
Downloads
Published
Issue
Section
License
Copyright Ownership: Authors retain copyright ownership of their work after publication in IJOP. However, they grant the journal an exclusive Creative Commons license.
Creative Commons License: The authors grant IJOP the right to exclusively apply a Creative Commons license to their work upon publication. This license permits use, distribution, and reproduction of the work in any medium, provided that the original work and its source are properly cited. The specific license applied is Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0), which allows for attribution, non-commercial use, and derivative works.
Editorial Research: Authors grant the journal the right to analyze information obtained from submitted manuscripts for editorial research purposes. This analysis aims to improve the peer-review process, teaching, and training activities.
Warranties: Authors warrant that their work is original, contains no libelous statements, is lawful, and does not infringe upon any copyright, trademark, patent, or proprietary rights of others. Authors agree to indemnify the editors against any costs, expenses, and damages arising from any breach of this warranty.
Views and Opinions: The views and opinions expressed in the article are those of the authors and not necessarily those of the journal.