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二氧化碳对许多器官的血管都有较强的扩张作用,许多动物实验的结果也证明它对耳蜗的血管有同样明显的作用。如果在耳蜗血管功能不良的病人中能够得到这样的结果,那么二氧化碳吸入就有可能改善其听功能。本文的目的在于:(1)在不同浓度,不同时间的二氧化碳吸入之前和之中,作耳蜗血流的定量测定。(2)研究二氧化碳吸入对动物全身的生理学影响。作者们所用的方法是在给动物吸入二氧化碳之前、之中和之后,把用铈(~(141)Ce)、钪(~(46)Sc)、锶(~(85)Sr)标记的微粒通过心脏穿刺注入动物血流。吸入的气体包括含有7％二氧化碳的空气、
Carbon dioxide on many organs of the blood vessels have a strong expansion, the results of many animal experiments also prove that it has the same obvious effect on the cochlear blood vessels. If such a result can be obtained in patients with cochlear dysfunction, inhalation of carbon dioxide may improve their hearing function. The purpose of this article is to: (1) Quantitatively determine cochlear blood flow before and during carbon dioxide inhalation at different concentrations and times. (2) to study the physiological effects of carbon dioxide inhalation on the whole body of animals. The method used by the authors was to pass particles labeled with cerium (~ (141) Ce), scandium (~ (46) Sc), strontium (~ (85) Sr) before, during and after inhaling the carbon dioxide Heart puncture injects animal bloodstream. Inhaled gases include air containing 7% carbon dioxide,