Concomitant aortic valve and ascending aorta replacement with moderate hypothermic circulatory arrest to treat an aortic bicuspid valve with post-stenotic dilatation
Department of Cardiovascular Surgery, Nihon University Hikarigaoka Hospital, 2-11-1 Hikarigaoka, Nerima-ku, Tokyo, 179-0072, Japan.Surgery Today (Impact Factor: 1.53). 06/2012; 42(9):913-6. DOI: 10.1007/s00595-012-0217-6
We recommend concomitant surgery for aortic valve replacement (AVR) and ascending aortic replacement using moderate hypothermic circulatory arrest (CA) for post-stenotic dilatation complicated by an aortic bicuspid valve. Cardiopulmonary bypass (CPB) was established from the right atrium to the dilated ascending aorta. As soon as the rectal temperature decreased to 28 °C, CA was commenced and the open distal anastomosis of a polyester prosthesis, without any cerebral perfusion, was completed. AVR was then carried out during rapid re-warming with CPB using a side arm of the prosthesis. This procedure exhibited safe and satisfactory results. There are many benefits of carrying out the procedure in this way; it avoids the requirement for cannulation to a calcified aortic arch, provides a good operative field, for an easier distal anastomosis and suturing at the valve site, and reduces the risk of further dilatation or dissection of the residual ascending aorta in the later phase.
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