周期性呼吸

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。

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 .

服药后每小时周期性呼吸（PB）和呼吸暂停（SA）的次数及平均时间减少，均有显著性意义（P<0.05或P<0.01）；

The PB and SA were decreased ( P < 0.05 or < 0.01 ) .

本文报告下腔静脉声象图及M型显示，正常下腔静脉M型显示与颈静脉搏动图类似，有a波与v波，显示显著的周期性呼吸性变化。

The article reports the echocardiographic manifestations of the inferior vena cava ( IVC ) . The normal IVC M-mode echocardiogram appeared which has " a " and " V " waves similar to the jugular venous tracting and exhibits Prominent periodic respiratory changes .

在周期性呼吸末予物理刺激防治早产儿呼吸暂停的探讨

Prevention of Respiration Stop of Preterm Infant by Physical Stimulation at the End of Respiratory Cycle

目的：探讨在周期性呼吸阶段末给予适宜物理刺激，对防治早产儿原发性呼吸暂停的作用。

Objective : To investigate the effect of physical stimulation on the preterm infant 's respiration stop at the end of respiratory cycle .

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。

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 .

结果患者SaO2的周期性变化与其呼吸气流的周期性变化是一致的。大部分患者脉率变化周期与呼吸气流变化周期基本一致。

Results The cyclical variation of the SaO 2 is associated with that of the respiratory flow , and there is essential coherence between the cyclical variation of the pulse rate and that of respiratory flow in the most patients .

如果这已发展，你能学会在每天周期性地忆起呼吸，直到生物变化展现了呼吸的自动激活。

If this has yet to develop , one can learn to remember to breathe periodically during the day until the biological changes come forth to activate the breath automatically .

在不同的振幅差异范围内，光束间的主要作用交替地表现为相互排斥和相互吸引，并由于高斯孤子的不稳定性，导致了光束在碰撞后以一种尺寸周期性变化的呼吸模式传输。

In different regions of relative amplitude , the main effect is repulsion or attraction alternately , and due to the instability of Gaussian solitons , the beams breathe periodically after interactions .