Bouvrain Y, Coumel P, Leclercq J F
Arch Mal Coeur Vaiss. 1977 Aug;70(8):781-7.
The cyclical changes in biological events have seldom been studied by cardiologists. No complete systematic method of study has ever been applied to them. It is, however, certain that the circadian rhythms play a very important role in cardiac patients. This can be seen to be so in the arrhythmias. In a preliminary report, the authors give several examples of this concept; they have obtained their material by using a computerised magnetic tape recording of the electrocardiogram during a 24 hour period.
心脏病专家很少研究生物事件中的周期性变化。从未有完整的系统研究方法应用于这些变化。然而，可以确定的是，昼夜节律在心脏病患者中起着非常重要的作用。这在心律失常中可见一斑。在一份初步报告中，作者给出了这一概念的几个例子；他们通过使用计算机磁带记录24小时内心电图来获取资料。
