Tactics and Techniques of Aortic Arch Replacement

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Abstract
Operations on the nondissected and dissected aortic arch still pose challenges in terms of the need for and extent of aortic replacement. Our approaches to these lesions are described against the background of 204 operations (58 aneurysms, 54 chronic dissections, and 92 acute dissections), in terms of cerebral protection, procedural choices, and operative technique. Arch anastomoses sparing the supraaortic vessels had shorter periods of circulatory arrest (17.2 min) when compared to tubular arch replacement, with insertion of some or all of these vessels (33.7 min). Early death rates due to cerebral complications were lowest in acute dissections (3/14 fatalities, with two patients showing preoperative cerebral compromise). Based on our experience, we recommend doing subtotal or total arch repiacement in aneurysms regardless of cause. Radical arch surgery should be avoided in acute dissections whenever feasible. instead, the arch should be explored and a blood-tight distal anastomosis made, going beyond any entry tears encountered in that aortic portion. (J Card Surg 1994;9:538–547)

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