Perfusion During Open-Heart Surgery
نویسندگان
چکیده
PERFUSION DURING OPEN-HEART SURGERY Since the description of the Azygos factor by Andreasen and Watson in 1951, perfusion criteria have been much debated. Early investigators fluctuated between a high and low flow rates and the debate continues today. 2 · 3 ' •· 5 '" Hypothermia has been both widely acclaimed and generally repudiated. 7 • 8 Anoxic arrest of the heart' 0 ' n. z, 12 versus coronary perfusion" is yet another question of intense debate. This latter question takes on even more significance when confronted with an already severely damaged myocardium as seen in the candidate for coronary artery bypass graft surgery. Vigorous hemodilution is acclaimed by many, others advocate the maintenance of high hematocrit to avoid sacrificing oxygen carrying capacity. In an attempt to resolve some of these questions a critical review of our perfusion data during a 22 month period was undertaken.
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Surgical Anatomy of the Coronary Artery Distribution
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