Its normal heart rate increases during exercise or as a physiological response to stress, trauma or illness. But in tachycardia, the heart beats faster than normal in the upper or lower chambers of the heart or both while at rest.
Heart rate is controlled by electrical signals sent across heart tissues. Tachycardia occurs when an abnormality in the heart produces rapid electrical signals that quicken the heart rate, which is normally about 60 to 100 beats a minute at rest.
In some cases, tachycardia may cause no symptoms or complications. But if left untreated, tachycardia can disrupt normal heart function and lead to serious complications, including:
Clinical Cardiology and Cardiovascular Medicine is a peer reviewed journal, with rapid publications process. The journal publishes original research, case reports, commentaries, editorials, images related to cardiology and cardio vascular medicine, reviews, clinical trials related to cardiology and tachycardia.