Pericardiocentesis is a crucial procedure that can save a dog’s life when they have fluid buildup around the heart, known as pericardial effusion. This fluid puts pressure on the heart, making it hard to pump blood properly, which can cause your dog to feel weak, struggle to breathe, or even collapse. During the procedure, a vet carefully drains the fluid with a needle, helping the heart function normally again. It’s a delicate process often done in emergencies. If your dog ever shows signs of w