Finding
sinus arrhythmia
si·nus ar·rhyth·mi·a
Subclass of:
Cardiac Arrhythmia
Definitions related to sinus arrhythmia:
  • An electrocardiographic finding in which the sinus rate fluctuates with the respiratory cycle.
    CDISC Terminology
    Clinical Data Interchange Standards Consortium (CDISC), 2021
  • (arrhythmia, sinus) Irregular HEART RATE caused by abnormal function of the SINOATRIAL NODE. It is characterized by a greater than 10% change between the maximum and the minimum sinus cycle length or 120 milliseconds.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
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