Cross-Sectional (n=100)
No
A considerable percentage (15%) of normal healthy individuals exhibit deviations from the normal ECG pattern, highlighting the importance of recognizing normal variants to avoid misdiagnosing cardiac disease.
Clinicians should recognize ECG variants to avoid misdiagnosis in healthy individuals; leaves open generalizability and requires prospective validation.
The present study includes100 normal healthy individuals both males and females, 28 females and 72 males within the age groups from 16 years to 58 years were taken after careful clinical Examination to rule out any cardiac abnormality in particular, and other diseases in general; by following the given pattern. It is known that pulmonary, endocrinal, renal electrolytes and other abnormalities all can result in changes in the ECG pattern; a detailed careful clinical examination was done to rule out the above disorders. Infants were excluded from the study, as post partum period may be associated with changes pertaining to fetal circulation, which needs a separate study. Children below 15 years were also excluded from the study because incidence of congenital heart disease is more common in ages less than 15 years. Symptomatic individuals with any system were also not included in this study.
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M et al. (2013) conducted a cross-sectional in Normal healthy individuals (n=100). Resting 12-lead ECG was evaluated on Variations in ECG parameters (Rate, Rhythm, Axis, PR Interval, QRS duration, QT duration, PR and ST segments).
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