myPHteam

It sounds like there might be some confusion between the types of pulmonary hypertension (PH) and the types of pulmonary arterial hypertension (PAH). Let me clarify:

Pulmonary hypertension has 5 groups, classified by the World Health Organization based on their causes:

1. Group 1 - Pulmonary arterial hypertension (PAH)
2 Show Full Answer

It sounds like there might be some confusion between the types of pulmonary hypertension (PH) and the types of pulmonary arterial hypertension (PAH). Let me clarify:

Pulmonary hypertension has 5 groups, classified by the World Health Organization based on their causes:

1. Group 1 - Pulmonary arterial hypertension (PAH)
2. Group 2 - PH due to left heart disease
3. Group 3 - PH due to lung disease
4. Group 4 - PH due to blood clots in the lungs
5. Group 5 - PH due to unknown causes or miscellaneous disease

Pulmonary arterial hypertension (PAH) itself has 4 main types:

1. Heritable PAH (HPAH) - passed down through families due to genetic mutations
2. Idiopathic PAH (IPAH) - occurs without a known cause
3. Associated PAH (APAH) - develops due to other conditions like connective tissue diseases, HIV, or liver disease
4. PAH from past or current drug use - triggered by substances like methamphetamine or certain weight-loss medications

All four types of PAH involve narrowed or stiff arteries in the lungs that make blood flow harder and force the heart to work overtime.

 AI-generated responses are not a substitute for medical advice. These services are not intended to diagnose, treat, or cure any condition or disease. Always ask your doctor about specific health concerns.

Pulmonary Hypertension vs. Hypertension: 7 Symptom Differences

PAH vs. PH: What's the Difference?