Matanov L, Vitek A
Vutr Boles. 1987;26(5):108-12.
The subject of the study are the respiratory disorders after the acute stage of myocardial infarction. 25 patients, mean age 54 years, were studied. Modern test allowing the detection of the slightest respiratory disorders were used: maximal, mean and end respiratory flow, mean transitory time, calculated from the flow-volume curve. From the nitrogram, accomplished by a fast N2 analyzer, are calculated the closing time and % N2/l index. The interrelation with the gas density was studied by breathing of low density gas mixtures (He--80%, O2--20%). The highest sensitivity showed: % N2/l index, maximal expiratory flow 25%, maximal expiratory flow 50%, mean maximal expiratory flow, maximal end expiratory flow, closing time. The conclusion is that because of the close relations between the cardiovascular system and the lungs the respiratory disorders give indirect information for the degree of myocardial injury.
本研究的主题是心肌梗死急性期后的呼吸紊乱。研究了25名患者，平均年龄54岁。使用了能够检测出最轻微呼吸紊乱的现代测试方法：最大、平均和终末呼吸流量、平均过渡时间，这些均由流量-容积曲线计算得出。通过快速N2分析仪完成的氮浓度图可计算出关闭时间和%N2/l指数。通过呼吸低密度气体混合物（氦气80%，氧气20%）研究了与气体密度的相互关系。最高敏感性表现为：%N2/l指数、最大呼气流量25%、最大呼气流量50%、平均最大呼气流量、最大呼气末流量、关闭时间。结论是，由于心血管系统和肺部之间存在密切关系，呼吸紊乱可为心肌损伤程度提供间接信息。
