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KMID : 0390620090170010025
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Journal of Cardiovascular Ultrasound
2009 Volume.17 No. 1 p.25 ~ p.27
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Inferior Sinus Venosus Type Atrial Septal Defect Initially Presenting Pulmonary Hypertension on Transthoracic Echocardiography
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Cho Hyon-Joung
Chung Wook-Jin
Bong Jeong-Min
Shin Kwen-Chul
Shin Mi-Seung
Kang Woong-Chol
Han Seung-Hwan
Moon Chan-Il
Koh Kwang-Kon
Ahn Tae-Hoon
Choi In-Suck
Shin Eak-Kyun
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Abstract
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Inferior sinus venosus type atrial septal defect (ASD) is a rare congenital cardiac deformity that occurs between the inferior
vena cava and right atrium. Inferior sinus venosus defect is difficult to diagnose through transthoracic echocardiography because of its location which is infero-posterior to the fossa ovalis. Increasing pulmonary arterial pressure and pulmonary vascular resistance in patients with sinus venosus defect usually occur earlier than other types of ASD. We report a case of 19- year-old man who presented exertional dyspnea due to inferior sinus venous type ASD with mild pulmonary hypertension. In this case, we found clues from slight diastolic flattening of interventricular septum and shortened acceleration time of right ventricular outflow tract on initial transthoracic echocardiography, leading right heart catheterization and transesophageal echocardiography to reveal this rare type of ASD.
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KEYWORD
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Echocardiography, Atrial septal defect, Pulmonary hypertension
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