periodic breathing

1. Cheyne-Stokes respiration with central sleep apnea is a form of periodic breathing in which apneas and hypopneas alternate with ventilatory periods having a waxing-waning pattern of tidal volume.
   伴有中枢性睡眠呼吸暂停的Cheyne-Stokes呼吸是一种周期性的呼吸节律异常，其特征是交替性发生低通气、呼吸暂停与过度通气，在过度通气阶段，呼吸运动呈逐渐增强&逐渐减弱的形式。
2. Methods The patients with stable, optimally treated chronic congestive heart failure were monitored by polysomnography during nocturnal sleep and the effects of theophylline therapy on periodic breathing associated with stable heart failure were observed by before after study.
   方法应用多导睡眠监护仪对稳定期慢性充血性心力衰竭患者进行监测，并通过自身前后对照的方法观察口服茶碱对存在周期性呼吸的稳定期心力衰竭患者的治疗效果。
3. The periodic nature of neural impulses is of fundamental significance in the control of regular dynamical functions such as breathing and heart beating.
   人体控制呼吸和心跳等有规律的运动功能是靠周期性的神经脉冲，因此，研究神经网络中的周期解具有现实意义。
4. Due to the periodic temperature rising during daytime and dropping during nighttime, the barometric pressure usually fluctuates periodically, which results in the breathing of the permeable subsurface soils in response to pressure changes at the surface.
   由于气温白天高晚间低的周期性变化，大气压也会呈周期性波动。这种波动会导致透气性土壤地表进行呼吸，即气体通过地表上下运移。

noun

1. abnormal respiration in which periods of shallow and deep breathing alternate

   Synonym:    Cheyne-Stokes respiration