6 Risk Factors for Pulmonary Arterial Hypertension
Ernst von Romberg, a German physician, first described pulmonary arterial hypertension (PAH) in 1891. While conducting an autopsy, he noticed a thickening of the pulmonary artery, but there was no evidence of heart or lung disease that might have caused the condition. The term primary pulmonary hypertension or pulmonary arterial hypertension was coined decades later, in the 1950s by David Drysdale. PAH is a rare subtype of pulmonary hypertension. The primary character of PAH is the constriction of the pulmonary arteries. It causes blood circulation inefficient and makes the lungs and heart work harder. Pulmonary arterial hypertension symptoms largely include shortness of breath, fatigue, tiredness, dizziness, fainting, cyanosis, swelling in legs, ankles, and feet, heart palpitations, chest pain, and arrhythmia. Some risk factors for pulmonary arterial hypertension are mentioned below: 1. Family history About 20% of patients with PAH have a close relative who suffers from the disease. Research has linked PAH to mutation of the BMPR2 gene. This gene regulates the number of cells in tissues, and mutations can cause irregular development of the pulmonary arteries. In most cases, they branch out and decrease in width. Smaller blood vessels raise blood pressure, leading to PAH. 2. Other heart and lung diseases Dysfunction of the heart valves causes heart valve disorders, and congenital heart diseases are congenital disabilities.