正压通气治疗仪压力稳定性的研究  

Observation of the Pressure Stability in Continuous Positive Airway Pressure Therapy

作　　者：李春凤[1] 孙建军[1] 章榕[1] 孙玉梅[1] 

机构地区：[1]海军总医院全军耳鼻喉科中心,北京100037

出　　处：《海军总医院学报》2004年第2期81-83,共3页Journal of Naval General Hospital of PLA

摘　　要：目的　通过比较经鼻持续正压通气治疗仪的设定压力值与输出终端压力值 ,探讨正压通气治疗仪治疗压力的稳定性 ,为提高治疗睡眠呼吸暂停低通气综合征的有效性提供依据。方法　对国内常用的 9种正压通气治疗仪治疗压力的稳定性进行测试研究。结果　静态压力测试 ,多种正压通气治疗仪均不能保持一个恒定的输出终端压力 ,部分有漏气自动压力补偿功能的正压通气治疗仪明显优于无自动压力补偿的正压通气治疗仪 ;不同机型压力稳定性不同 (P <0 0 1) ;同一机型测试条件不同 ,压力稳定性有变化 (P <0 0 1) ;动态压力测试 ,呼气 /吸气压力差值小于 1cmH2 O时 ,压力稳定性较好。压力差值越大 ,输出终端的压力偏差越大 ,最大压差 3 6 5cmH2 O。结论　应适当调整正压通气治疗仪的设定压力与输出终端压力值 ,使两者相吻合 ,否则将直接影响患者的治疗效果和长期应用的顺应性。Objective To investigate the stability of the pressure by comparing both the CPAP setting and output terminal pressure value, thus enssuring the effect of the therapy. Methods The stability of pressure in 9 CPAP instruments commonly used at present in our country was studied. Results In the static pressure test, most are unable to keep a constant pressure value at the output terminal, although some of the instruments having spontaneous leak compensation function are obviously better than those without; the pressure stability varies with different types (P<0.01). In the dynamic pressure difference test, the pressure stabilizes well when the difference between expiratory and inspiratory pressure is less than 1 cm H 2O. The deviation of the output terminal pressure increases along with the increase of pressure difference. Conclusion The setting pressure of CPAP should be properly adjusted corresponding to the output terminal pressure, or there would be direct impact on the effect of therapy and long-term compliance.

关 键 词：持续正压通气 睡眠呼吸暂停低通气综合征 压力 稳定性 

分 类 号：R563.8[医药卫生—呼吸系统]