A P wave occurs before each QRS complex (+) with a stable PR interval (0.14 sec). The P wave is positive in leads I, II, aVF, and V4-V6. This is a sinus tachycardia.

The researchers found that elevated depressive symptoms were associated with increased odds of T-wave inversion, after multivariable adjustment (odds ratio, 2.02; P =0.001), while greater trait ...

An electrocardiogram (EKG) measures your heart's electrical activity. Find out what an abnormal EKG means and understand your treatment options.

June 24 -- TUESDAY, June 23 (HealthDay News) -- A slight abnormality in an electrocardiogram (EKG), until now thought to be insignificant, can be a warning sign of future cardiac problems and an ...

ECG Abnormalities and Stroke Incidence Sunil K Agarwal; Elsayed Z Soliman Disclosures Expert Rev Cardiovasc Ther. 2013;11 (7):853-861. AT & Atrial Ectopic ...

A small study suggests breast implants may interfere with the quality of ECG readings, leading to false-positive abnormalities. Researchers led by Sok-Sithikun Bun, MD (Princess Grace Hospital, Monaco ...

The study consisted of 173 female athletes (mean age, 27 years; 75% Black). Overall, 78.6% of participants had training-related ECG changes and 4.6% had abnormal ECG findings.