What causes pulmonary edema?

Jun 17, 2024 Source: Cainiu Health
Disease description:

My grandfather has recently been experiencing palpitations and occasional chest tightness. After a hospital examination, the doctor said it was caused by pulmonary edema. What causes pulmonary edema?

Doctor's answer (1)
Dr. Li Jingli
Pleural effusion, medically referred to as fluid accumulation in the pleural cavity, has various underlying causes. Infection and inflammation are common causes, with conditions such as pneumonia and tuberculosis often accompanied by pleural effusion. Autoimmune diseases, such as systemic lupus erythematosus, may also lead to this condition. Cardiac issues, including left heart failure, can increase venous pressure in the lungs, resulting in pulmonary congestion and subsequent pleural effusion. Other contributing factors include elevated capillary hydrostatic pressure, increased vascular permeability, decreased colloid osmotic pressure, and impaired lymphatic drainage. These causes span a wide range—from inflammatory infections to cardiac dysfunction—and require targeted treatment based on the specific underlying condition. Patients with concerns should seek timely medical consultation.