Why does pulmonary embolism lead to right heart failure?
Disease description:
My neighbor suddenly experienced shortness of breath and then lost consciousness. Today, I learned from his family that he was diagnosed with pulmonary embolism, which led to right-sided heart failure. Why does pulmonary embolism cause right-sided heart failure?
Doctor's answer (1)
Dr. Guo Xiheng
Pulmonary embolism (PE)-induced right heart failure occurs because, during a PE episode, pulmonary arterial vessels become obstructed, leading to elevated pulmonary arterial pressure and subsequently increased right ventricular pressure. PE-induced right heart failure is highly dangerous; in severe cases, it may even result in sudden death. Therefore, prompt evaluation and treatment at a qualified hospital are essential.
