1PG student 3rd year, Department of Physiology, I.G.I.M.S, Patna
2Additional Professor, Department of Physiology, I.G.I.M.S, Patna
3Associate Professor, Department of Physiology, I.G.I.M.S, Patna
4PG Student 2rd Year, Department of Physiology, I.G.I.M.S, Patna
*Corresponding Author: Dr. Tarun Kumar, Additional Professor, Department of Physiology, I.G.I.M.S, Patna, Email: tarunigims2018@gmail.com
Online published on 25 July, 2019.
Obesity has a strong impact on cardiovascular changes which is manifested in electrocardiogram (ECG). P-wave dispersion (Pd or PWD) is a non-invasive ECG marker for atrial remodelling and predictor of atrial fibrillation (AF). PWD is defined as the difference between the maximum and minimum P-wave duration recorded from the 12 ECG leads.
To study the variations in electrocardiographic P-wave duration and dispersion in relation to obesity and to find out significance of these variations.
A comparative cross-sectional study were conducted among 80 healthy adults of 18 to 40 years age groups. These adults were further divided into two group non-obese and obese according to their BMI. ECG recording was done for each subject and P-wave duration and dispersion were calculated in the department of physiology I.G.I.M.S, Patna.
Statistically parameters were analysed by independent samples test. We found significantly higher P-wave dispersion in obese group in comparison to non-obese group (p<0.001).
Obesity lead to prolongation of P-wave duration even in younger healthy adults. This prolongation of the P-wave duration increases the possibility of left atrial enlargement and atrial fibrillation. Hence the present study helps in creating awareness among obese so that they can change their lifestyle in order to prevent the onset of the deleterious effects of obesity on their health.
Obesity, BMI, ECG, P-wave, P-wave dispersion, Atrial fibrillation
