OBJECTIVETo investigate the clinical manifestations of patients with pulmonary artery hypertension (PAH) associated with hereditary hemorrhagic telangiectasia (HHT).

METHODSThis retrospective analysis summarized the clinical features of 6 patients with PAH associated with HHT hospitalized at department of cardiology in Cardiovascular Institute and Fuwai Hospital between January 2006 and May 2009.

RESULTSThe mean age of the 6 patients (3 male) was 34 years (8 - 67 years). Recurrent epistaxis were present in all patients, there were 4 patients with severe PAH and 2 patients with moderate PAH. All of the six patients with PAH associated with HHT were misdiagnosed at the first hospital visit. Clinical symptoms were significantly improved in 4 patients and remained unchanged in 2 patients combined hepatic venous malformation post medical therapy.

CONCLUSIONSMisdiagnosis for patients with PAH associated with HHT is a common phenomenon in daily clinical practice. Patients could benefit from the corresponding medical therapy after the establishment of the correct diagnosis.