Why does right-sided heart failure lead to emphysema?

Aug 20, 2022 Source: Cainiu Health
Disease description:

My grandmother developed right-sided heart failure accompanied by emphysema. Why does right-sided heart failure cause emphysema?

Doctor's answer (1)
Dr. Li Man
Right-sided heart failure in patients with emphysema is likely attributable to emphysema-induced right heart failure. The right ventricle communicates directly with the pulmonary artery; emphysema impairs both pulmonary ventilation and gas exchange, leading to chronic hypoxia. If left untreated, prolonged chronic hypoxia causes spasm of the pulmonary arterioles, resulting in pulmonary arterial hypertension and subsequently right-sided heart failure. Right-sided heart failure is a serious condition requiring prompt medical evaluation and treatment at a hospital.