What symptom does pulmonary hypertension have?

summary

Pulmonary hypertension refers to the patients whose mean pulmonary artery pressure is > 3.33kpa (25mmhg) at rest or > 4kPa (30mmhg) during exercise. Since pulmonary vascular resistance is the ratio of the difference between mean pulmonary arterial pressure and mean pulmonary venous pressure and pulmonary blood flow, that is, mean pulmonary arterial pressure is the sum of mean pulmonary venous pressure plus the product of pulmonary vascular resistance and pulmonary blood flow, all factors causing the increase of pulmonary venous pressure, pulmonary blood flow and pulmonary vascular resistance can cause pulmonary hypertension. Pulmonary hypertension is divided into primary and secondary. What symptom does pulmonary hypertension have? Let's talk about it.

What symptom does pulmonary hypertension have?

1. Perhaps at the beginning, it was thought that many small pulmonary thromboembolism caused primary pulmonary hypertension. But in the later research process, people found that although thromboembolic pulmonary hypertension is pulmonary hypertension, it is not primary pulmonary hypertension.

2. There is also because many autoimmune diseases can be combined with primary pulmonary hypertension, so in the guess of the etiology of primary pulmonary hypertension, it is speculated that the pathogenesis of primary pulmonary hypertension may be related to the immune system.

3. In the early investigation, it was found that primary pulmonary hypertension was related to family heredity. Therefore, after in-depth study, we found that there is no complete penetrance and early genetic phenomenon in primary pulmonary hypertension, so we think that primary pulmonary hypertension is actually a gene defect on a special chromosome.

matters needing attention

So far, there is no clear etiology of primary pulmonary hypertension, so this is now speculated that some of the causes of primary pulmonary hypertension, hoping to be useful to readers of this article.