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我们连续在３０例心内直视手术中采用常温下体外循环，小量晶体含血（红血胞比容２５％左右）冷停跳液（８～１０℃）连续灌注保护心肌。体外循环不降温。阻断主动脉期间，冠状循环用８～１０℃氧合机血连续灌注，同时用少量停跳液持续注入冠状灌注的氧合机血中，以氧合机血为停跳药物稀释剂，既保持心脏持续完全停跳又不断供应心肌血氧。阻断主动脉后心脏迅速停跳且始终呈鲜红色。开放主动脉后，心脏复苏快，自动复跳率高，血容量补足后血液动力学稳定。此法灌注装置简单，操作容易，停跳液配方药物少，停跳迅速，容量负荷低，手术野不受血液模糊影响，心脏复苏块，血液动力学稳定，效果满意。
We continuously in 30 cases of open heart surgery under cardiopulmonary bypass at room temperature, a small amount of crystal-containing blood (about 25% of the hematocrit) cold stop solution (8 ~ 10 ℃) continuous perfusion to protect the myocardium. Cardiopulmonary bypass does not cool. During occlusion of the aorta, the coronary circulation is continually perfused with oxygenated blood at 8-10 ° C while continuing to be infused with a small amount of cardioplegic fluid into the oxygenated blood of coronary perfusion. The oxygenated blood is a stop-thrombotic drug diluent, both Keep the heart continued to fully stop and continue to supply myocardial oxygen. After blocking the aorta the heart beats quickly and always shows a bright red color. After opening the aorta, heart resuscitation fast, automatic rebound rate, hemodynamic stability after blood volume make up. This method of perfusion device is simple, easy to operate, stop jumping liquid formula drugs, rapid arrest, low volume load, the surgical field from the impact of blood clots, heart block recovery, hemodynamic stability, the effect is satisfactory.