A Study of Electrocardiographic changes in smokers compared to normal human beings

作者：Venkatesh G^*; Swamy R M

来源：Biomedical Research-India, 2010, 21(4): 389-392.

• Electrocardiogram
• smokers
• heart rate
• axis
• ventricular activation time
• QRS complex
• T-P interval

The present study was conducted to assess the electrophysiological and hemodynamic alteration in the heart and circulation. Recording of ECG is one of the easiest methods of assessing cardiovascular dysfunction. Hence this study is taken up to detect the electrocardiographic changes due to smoking. The study included male subjects above 18 years of age selected from the general population of Davanagere. They were divided into two groups, controls and smokers. Each group contained 50 subjects. Smokers were selected as per World Health Organization (WHO) 10th revision of International Statistical Classification of Diseases and related health problems (ICD-10) criteria of harmful use. After taking consent and a detailed history from subjects, electrocardiogram was recorded during resting supine position. The ECG results are evaluated for different parameters like heart rate, P-wave, P-R interval, QRS complex, QT(C) interval, axis deviation, ST segment and T-wave. Two groups were compared statistically by student't' test. p value of 0.05 are less (p < 0.05) was considered for statistical significance. There is statistically significant increase in the heart rate and decrease in QRS complex and T-P interval in smokers compared to controls. P-wave, P-R interval, QT(C) interval, QRS frontal axis, ST segment and T-wave does not show statistically significant results. Our study results showed that smokers are prone for cardiovascular risk. So in earlier stages, abstinence from smoking can revert back the cardiovascular changes to nearly normal or in more severe cases to recovery with little residual damage to the heart.

• 出版日期2010-12