• T Hozumi, J Yoshikawa, K Yoshida, T Fukaya, M Shakudo, Y Yamaura, K Koizumi, F Okumachi, K Shiratori, and S Takao.
• Department of Cardiology, Kobe General Hospital.
• J Cardiol. 1994 May 1;24(3):221-6.

AbstractDiagnosis of sinus venosus atrial septal defect based on transthoracic color Doppler and two-dimensional echocardiography is often difficult. We recently experienced two cases of sinus venosus atrial septal defect which were correctly diagnosed using transesophageal color Doppler and two-dimensional echocardiography. Transthoracic color Doppler flow imaging did not demonstrate the atrial septal defect or the shunt flow across the defect in either case. Transesophageal two-dimensional echocardiography visualized a defect in the upper most portion of the interatrial septum in one case, and transesophageal color Doppler flow mapping detected a left-to-right shunt across the defect in both cases. Transesophageal color Doppler flow mapping also demonstrated the flow signal of the right upper pulmonary vein into the right atrium near its junction with the superior vena cava in each case. The diagnoses of sinus venosus atrial septal defect and combined partial anomalous pulmonary venous return were confirmed by surgery in both cases. Transesophageal color Doppler and two-dimensional echocardiography are very useful in diagnosing sinus venosus atrial septal defect and combined partial anomalous pulmonary venous return.

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