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右室梗塞是右冠状动脉在右室支分支前,其附近部位狭窄、闭塞而发生的。右冠状动脉的支配领域多到达左室下壁,心电图上或者多合并下壁梗塞,或者多同时波及右房,出现P 波异常、心房节律异常,并多合并心动过缓性心律失常。在右室梗塞时有颈外静脉怒张,中心静脉压升高,经Swan—Ganz 热稀释导管插入后,右室舒张终期压力增高,典型病例呈现倾斜和水平(dip and plateau)样改变。右房压上升多在10mmHg 左右,并且心脏指数下降,多低于2l/min/m~2)平均1.4～1.7l/min/m~2。在左
Right ventricular infarction is the right coronary artery in the branch before the right ventricle, the stenosis in the vicinity, occlusion occurred. Right coronary artery dominated more than reached the left ventricular wall, ECG or more with inferior wall infarction, or more simultaneously affect the right atrium, there P wave abnormalities, abnormal atrial rhythm, and more complicated bradycardia arrhythmia. In the right ventricular infarction with external jugular vein engorgement, central venous pressure increased by Swan-Ganz heat-diluted catheter insertion, right ventricular end diastolic pressure increased typical cases showed dip and plateau-like changes. Right atrial pressure increased more than about 10mmHg, and decreased cardiac index, more than 2l / min / m ~ 2) an average of 1.4 ~ 1.7l / min / m ~ 2. On the left