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Catheter-based Endovascular Angioplasty for Fibrosing Mediastinitis-associated Pulmonary Vein Stenosis
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Transpleural pulmonary-to-systemic venous collaterals in a case with obstructed scimitar vein
Derek T H Wong1, Lars Grosse-Wortmann, Shi-Joon Yoo
1Division of Cardiology, Department of Pediatrics, The Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, Canada.
Abstract:
Scimitar syndrome is a rare cause of left-to-right shunting. Surgery is indicated for a pulmonary-to-systemic blood flow ratio greater than 1.5:1 and not infrequently is complicated by postoperative obstruction. This report presents a case of scimitar syndrome and reviews how magnetic resonance imaging (MRI) can be used for initial and follow-up assessment of the syndrome with emphasis on suspected pulmonary venous obstruction. Given the potential high incidence of postoperative occlusion, MRI provides hemodynamic and anatomic information for both initial and follow-up assessment of scimitar syndrome. MRI clearly demonstrated transpleural pulmonary-to-systemic venous collaterals draining the obstructed scimitar vein.
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