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Cardiac Complexes, Premature MeSH Descriptor Data 2026
A group of cardiac arrhythmias in which the cardiac contractions are not initiated at the SINOATRIAL NODE. They include both atrial and ventricular premature beats, and are also known as extra or ectopic heartbeats. Their frequency is increased in heart diseases.
Entry Term(s)
Cardiac Complex, Premature
Ectopic Heartbeats
Extrasystole
Extrasystoles
Premature Beats
Premature Cardiac Complex
Premature Cardiac Complexes
NLM Classification #
WG 330
Public MeSH Note
96; was EXTRASYSTOLE 1963-95; PREMATURE BEATS was PREMATURE BEAT 1985-95
History Note
96; was EXTRASYSTOLE 1963-95; PREMATURE BEATS was PREMATURE BEAT 1985-95
A group of cardiac arrhythmias in which the cardiac contractions are not initiated at the SINOATRIAL NODE. They include both atrial and ventricular premature beats, and are also known as extra or ectopic heartbeats. Their frequency is increased in heart diseases.