首页> 美国政府科技报告 >Control of Lethal Arrhythmias Associated with Coronary Heart Disease. Experimental Studies of Arrhythmias in Relation to Coronary Heart Disease.
【24h】

Control of Lethal Arrhythmias Associated with Coronary Heart Disease. Experimental Studies of Arrhythmias in Relation to Coronary Heart Disease.

机译:控制与冠心病相关的致死性心律失常。心律失常与冠心病关系的实验研究。

获取原文

摘要

Activation sequence determined at intervals during acute ischemia demonstrated slowed conduction in ischemic areas with earliest onset at the endocardium and of greater magnitude with ectopic than with supraventricular excitation. Fibrillation threshold (FT) was shown to be reduced by acute ischemia and further reduced by sympathetic nerve stimulation. Sympathectomy increased FT in the presence of acute ischemia. Computer simulation of fibrillation and of FT measurement provided evidence that the measurement was most sensitive to local ischemic lesions when inducing electrodes were near the lesions. Comparison of 35and 192leads for the estimation of localized lesion size indicated similar average errors for the lead sets but markedly greater individual variation for the smaller number of leads. Evidence was also obtained that the body surface is approximately twice as sensitive to anterior as to posterior cardiac walls in terms of non dipolar electrocardiographic potentials from localized lesions.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号