Dilated Cardiomyopathy (DCM) in Boxers
Cardiac condition — Boxer — Medium-Large breed
High Risk
What is Dilated Cardiomyopathy (DCM)?
Dilated cardiomyopathy (DCM) is a disease of the heart muscle in which the heart chambers enlarge and the heart wall weakens, reducing its ability to pump blood effectively. It is the most common heart disease in large and giant breeds and has a strong heritable component in several breeds. DCM often progresses silently before signs appear.
Symptoms of Dilated Cardiomyopathy (DCM)
- Exercise intolerance and tiring quickly on walks
- Coughing, especially at night
- Labored or rapid breathing
- Weakness or fainting episodes
- Fluid accumulation in the abdomen (pot-bellied appearance)
- Reduced appetite and weight loss
How Is Dilated Cardiomyopathy (DCM) Diagnosed?
Diagnosed by echocardiogram (cardiac ultrasound), which measures chamber size and heart function. Chest X-rays show heart enlargement and fluid. ECG detects arrhythmias. Annual cardiac screening is recommended for high-risk breeds once they reach adulthood.
Treatment & Cost
DCM is not curable but is managed with medications: diuretics to reduce fluid buildup, ACE inhibitors to reduce heart workload, digoxin or other drugs to improve contractility, and anti-arrhythmic drugs if needed. Medications can extend a good-quality life by 1–3 years in many dogs.
Most pet insurance plans cover dilated cardiomyopathy (dcm) treatment in full when the policy is active before diagnosis. Compare plans below.