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Comparing the Effects of Electronic Cigarette Vapor and Cigarette Smoke in a Novel In Vivo Exposure System

Comparing the Effects of Electronic Cigarette Vapor and Cigarette Smoke in a Novel In Vivo Exposure System

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ECG Changes in Smokers and Non Smokers-A Comparative Study.

M R Renuka Devi¹, T Arvind, P Sai Kumar

¹Associate Professor, Department of Physiology, Sree Balaji Medical College and Hospital , Chromepet, Chennai, India .

Journal of Clinical and Diagnostic Research : JCDR

|July 2, 2013

Summary

Cigarette smoking significantly alters electrocardiogram (ECG) readings, including heart rate and QT intervals, indicating potential cardiovascular risks in smokers. These ECG changes highlight the urgent need for smoking cessation to prevent heart disease.

Keywords:

Electrocardiography Nicotine Smoking

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Electroencephalographic, Heart Rate, and Galvanic Skin Response Assessment for an Advertising Perception Study: Application to Antismoking Public Service Announcements

Electroencephalographic, Heart Rate, and Galvanic Skin Response Assessment for an Advertising Perception Study: Application to Antismoking Public Service Announcements

Published on: August 28, 2017

Area of Science:

Cardiology
Physiology
Public Health

Background:

Tobacco smoking is a leading cause of preventable global mortality.
Nicotine in cigarettes causes physical and psychological dependence, increasing cardiovascular risks.
Electrocardiography (ECG) is a cost-effective method for assessing cardiac abnormalities.

Purpose of the Study:

To compare electrocardiogram (ECG) parameters between adult male smokers and non-smokers.
To identify specific ECG changes associated with cigarette consumption.

Main Methods:

Recruited 88 healthy males (18-30 years), divided into 44 smokers and 44 non-smokers.
Recorded ECGs after 2-hour abstinence from smoking and caffeine.
Assessed heart rate, P-wave, PR interval, QRS complex, QT interval, corrected QT (QTc), ST segment, and T wave duration.

Main Results:

Smokers exhibited a statistically significant increase in heart rate.
Smokers showed a significant shortening of RR interval, QT interval, and ST segment compared to non-smokers.
While QTc interval was shortened and QRS complex widened in smokers, these changes lacked statistical significance.

Conclusions:

ECG alterations in smokers reflect acute or chronic effects of smoking on the cardiovascular system.
ECG findings can serve as a tool for physicians to counsel smokers on cessation.
Early smoking cessation is crucial for mitigating smoking-induced cardiovascular disorders.