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My Pomeranian has enlarged heart & murmur. What tests are next?

Updated On September 23rd, 2025

Pet's info: Dog | Pomeranian | Male | 11 years and 5 months old | 8 lbs

My pomeranian was diagnosed with an enlarged heart. The only tests my vet did was an xray of his heart, and a stethoscope was used. He said he also had a heart murmur. What other tests should I request to see if this is caused by an underlying health problem?

1 Answer

Most Helpful Answer

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Answered By Amy S. Eutsey, DVM

Veterinarian

Published on June 17th, 2018

The most common cause for an enlarged heart in a smaller breed dog is disease or deterioration of the heart valves. The best test to have done is an Echocardiogram. This is an ultrasound of the heart. It allows visualization of the valves and their function, allows measurement of the thickness of the heart muscles and would allow the doctor to see any other abnormal structures. This is best done by an ultrasound specialist or a board certified pet cardiologist in order to get the most accurate and valuable information. Thank you for using Petco Pet Education Center, formerly Petcoach.

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