Pericardial effusion
Pericardial effusion is the accumulation of fluid within the sac surrounding the heart, which can compress the heart and impair its filling. In dogs it is most often caused by bleeding from a heart-base or right atrial tumor or by idiopathic inflammation. Rapid accumulation causes cardiac tamponade, a life-threatening emergency. It typically affects older, larger-breed dogs.
Quick facts
- Type:
- Syndrome
- Typical onset:
- Acute
- Body systems:
- Cardiovascular
- Affected species:
- CAT, DOG
- Reference codes:
- ICD11 BB25
Sources & references
- Merck Veterinary Manual — Describes causes, tamponade physiology, and pericardiocentesis for canine pericardial effusion.
- ICD-11
This content is for educational purposes and is not a substitute for professional veterinary advice. If you are worried about your pet, contact your veterinarian.