Till today there has been no consent upon classification of the different disease states associated with high altitude pulmonary hypertension. The following classification is a proposal.
High altitude pulmonary hypertension without polycythemia (hematocrit < 65 %)
- Acute complication: High altitude pulmonary edema
- Subacute complication: Congestive heart failure of high altitude
High altitude pulmonary hypertension with polycythemia (hematocrit ≥ 65 %)
- Chronic mountain sickness in long-term high altitude residents (Monge’s Disease)