Klein W W, Brandt D, Kraft-Kinz J, Schreyer H
Acta Med Austriaca. 1976;3(3):69-73.
In summary, rapid atrial pacing prior to surgery may be able to assess LVF and the degree of coronary insufficiency by measuring lactate production. Functional contraction abnormalities of the left ventricle are described by the anginal depression of the LVF, whereas a preanginal depression should be a sign of organic, fibrotic impairment of myocardial function. In cases of the former, after successful bypass surgery, a normal LVF may be observed. Moreover, myocardial metabolism is normalised. In the latter group, despite clinical improvement, functional abnormalities can persist.
总之，手术前快速心房起搏或许能够通过测量乳酸生成来评估左心室功能不全（LVF）和冠状动脉供血不足的程度。左心室功能收缩异常通过LVF的心绞痛性压低来描述，而心绞痛前压低应是心肌功能器质性、纤维化损害的征象。在前一种情况下，成功进行搭桥手术后，可观察到LVF恢复正常。此外，心肌代谢也恢复正常。在后一组病例中，尽管临床症状有所改善，但功能异常可能持续存在。
