NCT01717092

Epidemiological Study of Chronic Thromboembolic Pulmonary Hypertension in China

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 400 (estimated)
• Sponsor: Air Force Military Medical University, China · Academic / Other
• Sex: All
• Age: 18 Years – 80 Years
• Healthy volunteers: Not accepted

Summary

Chronic thromboembolic pulmonary hypertension (CTPH) is associated with considerable morbidity and mortality. Its incidence after pulmonary embolism and associated risk factors are not well documented in Chinese population. We conducted a prospective, long-term, follow-up study to assess the incidence of symptomatic CTPH in consecutive patients with an acute episode of pulmonary embolism but without prior venous thromboembolism. Patients with unexplained persistent dyspnea during follow-up underwent transthoracic echocardiography and, if supportive findings were present, ventilation-perfusion lung scanning and pulmonary angiography. CTPH was considered to be present if systolic and mean pulmonary-artery pressures exceeded 40 mm Hg and 25 mm Hg, respectively; pulmonary-capillary wedge pressure was normal; and there was angiographic evidence of disease.

Conditions

• To Assess the Long-term Risk for Adverse Events After PE.

Timeline

• Start date: 2012-10-01
• Primary completion: 2015-10-01
• Completion: 2015-10-01
• First posted: 2012-10-30
• Last updated: 2014-02-27

Locations

2 sites across 1 country: China