👉 The term "athyria" is a medical condition that refers to an increase in the amount of blood in the left atrium and right ventricle, which can cause symptoms such as chest pain or discomfort. This condition is also known as pulmonary edema. The exact causes are not fully understood but it is often associated with smoking, obesity, heart disease, or certain medications. Treatment may include medications to reduce fluid retention, surgery if the condition is severe, and lifestyle changes like weight loss