Heart murmurs in dogs are very common, particularly in small breeds as they age. Most are caused by mitral valve disease — a degenerative condition that progresses over time. The critical decision is determining when to start cardiac medications, particularly pimobendan, which requires accurate echocardiographic assessment of heart size.
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Murmur grading and the decision of when to start medication (particularly pimobendan) is stage-dependent and requires echocardiography. The ACVIM consensus guidelines published after the EPIC trial define specific echocardiographic criteria for starting pimobendan — criteria that general practice cannot assess without ultrasound equipment and cardiologist training.
ACVIM consensus guidelines for treatment initiation, accurate cardiac enlargement assessment, and prognosis guidance. A cardiologist measures left atrial to aortic ratio (LA:Ao) and vertebral heart size (VHS) to determine ACVIM stage — the difference between Stage B1 (watch and wait) and Stage B2 (start pimobendan) has significant implications for disease progression.
Heart Murmur in Dogs can be difficult to diagnose correctly. A specialist second opinion confirms, or revises, your pet's diagnosis before treatment begins.
Treatment choices for heart murmur in dogs have significant cost and outcome differences. A specialist review ensures your pet gets the most appropriate protocol.
Knowing a board-certified specialist has reviewed your pet's case gives you the confidence to make treatment decisions without second-guessing.
Every opinion is written by a board-certified cardiology specialist, not a general vet. You get a detailed written report to share with your own vet, and if it does not address your case you can request a refund within 48 hours.
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A board-certified cardiology specialist reviews your pet's complete case and delivers a written second opinion in 24-48 hours.
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