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为探讨电刺激下丘脑背内侧核(DMH)诱发心表面电图(EECG)S-T段下移的范围与冠状动脉走行的关系及S-T 段下移时,左心室跨壁血流比值的变化,用35只家兔进行了实验,结果表明电刺激家兔DMH 可诱发LADA 供血区,LVA 和LCA 某些末梢供血区S-T 段下移;诱发左心室壁内膜下心肌缺血,其缺血程度与S-T 段下移程度呈正相关。
To investigate the relationship between the extent of ST-segment elevation induced by DMH-induced cardiac electrocardiogram (EECG) and the course of coronary artery stenosis and the ratio of left ventricular transmural blood flow during ST segment depression, Thirty-five rabbits were tested. The results showed that electrical stimulation of DMH in rabbits induced ST-segment elevation in LADA blood supply area, LVA and LCA peripheral blood supply areas, induced left ventricular wall myocardial ischemia, The extent of ST segment downward movement was positively correlated.