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主要因呼吸中枢抑制,使肺气体交换发生障碍时,为增加换气量及改善动脉血气而应用能直接或间接兴奋呼吸的药物,即谓呼吸刺激药。古典的中枢兴奋剂洛贝林、可拉明、双吗啉胺等,只在麻醉科领域或作为急救药使用:60年代初,出现了新呼吸刺激药回苏灵、吗乙苯吡酮等,并开始用于呼衰病人;近年来又有Almitrine、各种黄体酮制剂、纳络酮等问世.本文仅就临床常用的吗乙苯吡酮为例加以说明。【呼吸调节的机理】呼吸最重要的作用,当然是摄取氧而排出CO_2。其在动脉中的分压(PaO_2PaCO_2)如有变化.通气量也反应性地发生
Mainly due to inhibition of the respiratory center, so that when the exchange of gas in the lung barrier occurs, in order to increase ventilation and improve arterial blood gas and can directly or indirectly excited breathing of drugs, namely, respiratory stimulant. The classical central stimulant Lobelin, kolamine, double the morpholine amine, etc., only in the field of anesthesia or as a first aid use: the early 60s, there has been a new respiratory stimulant, , And began to be used for patients with respiratory failure; in recent years there are Almitrine, a variety of progesterone preparations, naloxone, etc. This article only on the clinical use of ethylphenidate as an example to illustrate. The mechanism of respiratory regulation The most important role of breathing, of course, is the intake of oxygen and discharge CO_2. Its partial pressure in the artery (PaO_2PaCO_2) is subject to change. Ventilation also occurs reactively