arrhythmia cardiac arrhythmia also known cardiac dysrhythmia irregular heartbeat group conditions heartbeat irregular fast slow heart rate fast beats per minute adults called tachycardia heart rate slow beats per minute called bradycardia ref name nih def ref many types arrhythmia symptoms symptoms present may include palpitations feeling pause heartbeats seriously may lightheadedness passing shortness breath chest pain ref
Applied science Medicine and health Internal medicine Cardiology