| Diagnosis of Patent Ductus Arteriosus by Pulsed Doppler Echocardiography; Sensitivity and Specificity. |
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In Youl Ma, Jin Gon Jun, Jeong Ok Hah |
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Department of Pediatrics, Yeungnam Medical Center, Taegu, Korea |
| Doppler 심초음파도를 이용한 동맥관개존의 진단 : 감수성과 특이성
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마인열, 전진곤, 하정옥 |
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영남대학교 의과대학 소아과학교실 |
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| Abstract |
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For the determination of the sensitivity and specificity of pulsed Doppler echocardiographic (PDE)
diagnosis of patent ductus arteriosus (PDA), we evaluated 108 children with congenital heart disease
by suprasternal and parasternal approaches.
PDA was diagnosed when continuous turbulent flow(CTF) or PDA jet flow was recorded in main
pulmonary artery (MPA) by parasternal approach and when reverse diastolic flow(RDF) was detected
in descending aorta and no RDF was detected in ascending aorta by suprasternal approach.
PDA was proved by surgery in 43 of 108 children with congenital heart disease, and all children had
PDE and surgical correction of their heart deformities.
On PDE examination, CTF was recorded in 40 of the 43 children with PDA and RDF in descending
aorta was detected in 38 of the 43 children with PDA and no RDF in ascending aorta was detected
in all patients with PDA. And all patients who have CTF in MPA or RDF in descending aorta were
found to have PDA.
Thus pulsed Doppler echocardiographic diagnosis of PDA by CTF or PDA jet flow in MPA has
sensitivity of 93% and specificity of 100%, and diagnosis of PDA by RDF in descending aorta has
sensitivity of 88.4% and specificity of 100%.
So we concluded that pulsed Doppler echocardiographic diagnosis of PDA by suprasternal and
parasternal approaches was specific and sensitive method and a careful pulsed Doppler echocardiographic examination may avoid the unnecessary cardiac catheterization in patients with PDA.
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| Key Words:
Pulsed doppler echocardiography, PDA.
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