In this video, you’re seeing fluid building up around a dog’s heart — a condition called pericardial effusion. That fluid fills the pericardial sac and physically compresses the heart, making it almost impossible for it to pump blood the way it needs to. This can quickly lead to collapse or even sudden death if not treated urgently ⚠️ 🐶 What this can look like at home:�• Trouble breathing or breathing faster than normal 🫁�• Slowing down, weakness, or sudden collapse�• Pale gums ⚪�• A swollen b