Mitral Insufficiency & Sinus Arrhythmia

Amara H. Estrada, DVM, DACVIM (Cardiology), University of Florida

ArticleSeptember 20141 min read
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A grade 3/6 systolic murmur is auscultated over the left apex region in this heart sound, which is plateau (band-shaped) and occurs throughout systole, making it difficult to identify S1 or S2 sounds. There is also a regularly irregular rhythm consistent with a sinus arrhythmia.