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KMID : 1033520150060010053
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Korean Society of Medical Sonographers
2015 Volume.6 No. 1 p.53 ~ p.60
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A case report of Patent Ductus Arteriosus in Adult : usefulness of Echocardiography and transcatheter closure treatment
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Han Deok-Hee
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Abstract
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Purpose: Patent ductus arteriosus (PDA) is a congenital heart defect in which the ductus arteriosus, a vascular structure between the pulmonary artery and the aorta. The incidence of PDA is approximately 1 in 2000 in full-term infants and consists 5 to 10% of all congenital heart disease in children. In adulthood a PDA is not often encountered since it is usually discovered and treated during childhood. The mortality of untreated PDA in adults (without correction for the size of the PDA) is estimated to be 1.8% per year. This case report is to determine clinical usefulness of Echocardiography in diagnosing PDA and transcatheter closure treatment.
Case report : A 55-year-old lady with no cardiac history came to the health promotion center for health screening. She had no symptoms. The ECG showedsinus Bradycardia. The chest X-ray showed no abnormality. During echocardiographic examination, a small shunt and a continuous wide flow from the proximal descending aorta to the main pulmonary artery was seen. The left ventricle was dilated with an end-diastolic diameter of 64 mm and end systolic diameter of 42 mm. The systolic function was preserved. The PDA was successfully closed with an Amplatzer ductus occlude 8-6mm. (ADO, AGA Medical Corporation, Minnesota, USA). The echocardiography showed no shunt flow, coaptation and aneurysm after transcatheter closure treatment. The patient is planning an outpatient visits for follow-up after 6 months.
Conclusion : Echocardiography is useful test for the diagnosis of PDA in adults other than the physical examination. Transcatheter closure is the primary choice for treating a PDA in adults. Next to volume overload, prevention of endocarditis is an indication for treatment, also in small ducts. Adult patients with patent ductus arteriosus should be treated surgically, especially if cardiomegaly is seen at initial presentation.
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KEYWORD
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Patent ductus arteriosus (PDA) , Echocardiography, Transcatheter closure
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