论文部分内容阅读
近年来在心脏复苏方面取得了一些进展。本文结合护理工作就其中若干新观点介绍如下。一、不用“三联针”,首选甲氧胺心脏复苏中,传统概念认为兴奋β-受体比兴奋α-受体更为重要。但近年来实验证明:兴奋α-受体(主要是α-1受体)的心脏复苏率比兴奋β-受体为高。其机制是兴奋α-1受体使外周血管收缩,心脏按压的舒张压随之增高,冠状血流和心肌张力得以改善,有利于心脏复跳。而国内曾一度使用的“三联针”,其中有强烈的β-受体兴奋作用,有引起心肌缺血和顽固的室性心律的危险,弊多利少,宜予废弃。近年来研究还表明:甲氧胺作为心脏复苏时的首选药物效果最佳。甲氧胺为纯α-肾上腺素能激动药,使周围阻力增高。当进行心脏按压时,主动脉收缩压和舒张压都升高,对增
In recent years, some progress has been made in cardiopulmonary resuscitation. This article combines nursing work on a number of new ideas introduced below. First, without the “triple needle”, preferred methoxyamine cardiac revascularization, the traditional concept that the excited β-receptor α-receptor is more important than excitement. In recent years, however, experiments have shown that the rate of cardiac recovery of excited α-receptors (mainly α-1 receptors) is higher than that of excited β-receptors. The mechanism is excited α-1 receptors to peripheral vasoconstriction, diastolic blood pressure followed by heart compression, coronary blood flow and myocardial tension can be improved, is conducive to heart resuscitation. The domestic once used “triple needle”, which has a strong beta-receptor excitability, there is the risk of myocardial ischemia and stubborn ventricular arrhythmia, more harm than good, should be discarded. In recent years, studies have also shown that: methoxyamine as the drug of choice during cardiac resuscitation works best. Methoxyamine is a pure alpha-adrenergic agonist, increasing resistance around. When the heart is pressed, the aortic systolic and diastolic blood pressure both increase and increase