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Kohei Kawazoe
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Asian Cardiovasc Thorac Ann 2006;14:43-46
© 2006 Asia Publishing EXchange Ltd

ORIGINAL CONTRIBUTION

Magnetic Resonance Angiography in Coronary Artery Bypass Grafting

Shingo Ohuchi, MD, Kohei Kawazoe, MD, Hiroshi Izumoto, MD, Kunihiro Yoshioka, MD1

Department of Cardiovascular Surgery
1 Department of Radiology, Iwate Medical University Memorial Heart Center Morioka, Japan

For reprint information contact: Shingo Ohuchi, MD Tel: 81 19 651 5111 Fax: 81 19 624 8384 Email: gekai_ohuchi{at}hotmail.com, Department of Cardiovascular Surgery, Iwate Medical University Memorial Heart Center, 1-2-1 Chuohdori, Morioka 020-8505, Japan

An attempt was made to reduce the incidence of perioperative stroke by detecting cerebrovascular disease with preoperative head and neck magnetic resonance angiography and by selecting the coronary artery bypass grafting technique. This strategy was used in 268 patients with ischemic heart disease who had undergone both head and neck magnetic resonance angiography before elective coronary artery bypass in our hospital between May 1997 and April 2001. In patients with significant stenosis or obstruction detected by head and neck magnetic resonance angiography, the findings were evaluated and cerebral blood flow was examined using brain single-photon emission computed tomography. In those with a high risk of cerebrovascular ischemia, off-pump coronary artery bypass was performed to maintain cerebral blood flow. No stroke occurred during surgery, and hemodynamic cerebrovascular ischemia was prevented in all 268 patients. Postoperative stroke occurred in 3 patients (1.1%), but the incidence of perioperative stroke was reduced.






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