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Korean Circ J. 2013 Apr;43(4):277-280. English. Case Report.
Park TK , Yang JH , Yoo H , Ahn J , Jeon J , Song YB , Gwon HC .
Division of Cardiology, Department of Medicine, Cardiac and Vascular Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.

We describe a case of chronic total occlusion of the right coronary artery ostium 5 months after a repeated Bentall procedure in a patient with Behcet's disease. In this patient, an antegrade approach to delivering the guidewire during percutaneous coronary intervention was not successful. Coronary angiography revealed the existence of collateral blood supply from the left coronary artery. Using a retrograde approach, a guidewire was successfully advanced from the distal left circumflex artery through the collateral vessel and into the posterolateral branch of the right coronary artery. After the guidewire crossed over the occluded right coronary artery ostium and was snared into the ascending aorta, antegrade access for balloon and stent delivery succeeded.

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