Cardiac arrhythmia top open access journals Arrhythmia, also known as cardiac arrhythmia or heart arrhythmia is a group of conditions in which the heartbeat is irregular, too fast, or too slow. The heart rate that is too fast – above 100 beats per minute in adults – is called tachycardia, and a heart rate that is too slow – below 60 beats per minute – is called bradycardia.Some types of arrhythmias have no symptoms. Symptoms when present may include palpitations or feeling a pause between heartbeats. In more serious cases, there may be light-headedness, passing out, shortness of breath or chest pain. While most types of arrhythmia are not serious, some predispose a person to complications such as stroke or heart failure. Others may result in sudden death. There are four main groups of arrhythmia: extra beats, supraventricular tachycardia, ventricular arrhythmias and Brady arrhythmias. Extra beats include premature atrial contractions, premature ventricular contractions and premature functional contractions. Supraventricular tachycardia includes atrial fibrillation, atrial flutter and paroxysmal supraventricular tachycardia. Ventricular arrhythmias include ventricular fibrillation and ventricular tachycardia. Arrhythmias are due to problems with the electrical conduction system of the heart. Arrhythmias may also occur in children; however, the normal range for the heart rate is different and depends on age. A number of tests can help with diagnosis including an electrocardiogram (ECG) and Halter monitor. Top journals has been successfully publishing quality research articles from many years and looking forward to frame-up an eminent, outstanding issue with best quality research articles in this year. We request you to kindly submit and publish your paper in the best journal and get global acknowledgement.