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主动脉内气囊泵(以下简称气囊泵)可增加冠状动脉灌注压而同时又减少心肌的需氧量,从而能减少和减轻冠状动脉阻塞后心肌缺血性损害的范围和程度。但是,关于气囊泵对缺血区侧支血流和心肌内冠状动脉血流分布的影响,资料还很少。本文报道用放射性微珠来测定应用气囊泵前和气囊泵期间的局部冠状动脉血流。方法:取体重18～23公斤的犬18条,分为二组。第一组完全闭塞左冠状动脉前降支,第二组不完全闭塞(阻塞85％)左冠状动脉回旋支。实验犬在静脉麻醉和呼吸器控制呼
Intra-aortic balloon pump (hereinafter referred to as balloon pump) can increase coronary perfusion pressure, while reducing myocardial oxygen demand, which can reduce and reduce the extent and extent of myocardial ischemic injury after coronary occlusion. However, the airbag pump on the ischemic collateral flow and myocardial blood flow in coronary distribution, the data is still small. This article reports the use of radioactive beads to determine local coronary blood flow before and during balloon pump application. Methods: 18 dogs weighing 18 to 23 kg were divided into two groups. The first group completely occluded the left anterior descending coronary artery, and the second group did not completely occlude (occlusion 85%) left circumflex coronary artery. Experimental dogs in intravenous anesthesia and respiratory control call