Meet Flower! Flower is a 2yr old chihuahua that has an enlarged heart. The right side of her heart is enlarged and which could be indicative of a congenital issue in a young dog or it could be due to heartworms, which she does have.
An echocardiogragm needs to be done to diagnose her course of treatment. She has been experiencing a cough that has improved on medication but that is just a band-aid for her big heart.