학술논문
Doppler echocardiographic predictions of pulmonary artery pressure in children with congenital heart disease.
Document Type
Academic Journal
Author
Chotivittayatarakorn P; Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.; Pathmanand C; Thisyakorn C; Sueblinvong V
Source
Publisher: Medical Association Of Thailand Country of Publication: Thailand NLM ID: 7507216 Publication Model: Print Cited Medium: Print ISSN: 0125-2208 (Print) Linking ISSN: 01252208 NLM ISO Abbreviation: J Med Assoc Thai Subsets: MEDLINE
Subject
Language
English
ISSN
0125-2208
Abstract
Continuous wave Doppler echocardiography was used to examine the accuracy of predictions of pulmonary artery pressure by means of main pulmonary artery flow velocity in children with congenital heart disease, without pulmonary stenosis. The ratio of acceleration time to ejection time (AT/ET) was correlated to catheterized mean pulmonary artery pressure. The result was: mean pulmonary pressure equal to 120-2.4 (AT/ET x 100), r = 0.92, SEE = 7.9 mmHg, P value less than 10(-6). We then used this equation prospectively to predict mean pulmonary artery pressure in 20 children. The result was: catheterized mean pulmonary artery pressure equal to 0.9 predicted pressure minus 0.3, r = 0.94, SEE = 4.8 mmHg, 95 per cent confidence limit interval of X coefficient was 0.8 to 1.2. This result suggested that continuous wave Doppler predictions of pulmonary artery pressure correlate significantly with values subsequently obtained at catheterization.