what is primary pulmonary hypertension
A rare unexplained involvement of middle and small pulmonary artery occlusive disease in check after 2 to 5 years caused by right ventricular failure or fatal syncope.
Male and female incidence is 1:5, the time of diagnosis the average age of 35 years of age, the more the poorer prognosis of young patients. Almost all cases have endometrial hyperplasia, and caused by the narrow lumen. Late period has a number of cases of middle hypertrophy and hyperplasia, irreversible plexiform damage and necrotizing arteritis (reticular artery disease). the same clinical course of vascular damage can also be seen in some patients with liver cirrhosis and a number of joint use of appetite suppressants medicines dexfenflu-ramine-phentermine (fen -phen) patients, the drug in the United States has stopped listing.
More than 95% of cases have sexual exertional dyspnea, when labor precordial pain and syncope rare. Many patients have Raynaud's phenomenon, and joint pain, usually appear in the visible primary pulmonary hypertension a few years before the attack.
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