ty -jour t1-一氧化氮吸入对慢性阻塞性肺部疾病JF中呼吸系统耐药性的影响 - 欧洲呼吸杂志JA AU -FARRE,RAU -COBOS,AU -ROCA,JAU -RODRIGUEZ -ROISIN,R Y1-1996/02/01 UR -http://www.qdcxjkg.com/content.com/content/9/9/2/190。摘要N2-一氧化氮(NO)已被鉴定为非肾上腺素非胆碱能支气管扩张剂神经的神经递质。为了研究慢性阻塞性肺疾病(COPD)患者是否施加了支气管扩张剂的作用,我们使用强制振荡技术测量了呼吸系统的抗性,而呼吸却没有。八名COPD患者(7名男性和1名妇女;年龄66 +/- 7年(平均+/- SD);一秒钟内强迫呼气量(FEV1)37 +/- 17%的预测受试者和八个健康受试者(7个)研究了男性和1个女人; 33 +/- 4年; FEV1 108 +/- 14%PRED)。一氧化氮在空气中以每百万分之40(ppm)的浓度为40分钟。呼吸系统的总电阻(RR)和电抗(XRS),动脉氧饱和度,心率,潮汐体积和呼吸频率在基线时连续记录,以及在不停止吸入期间和之后。在健康受试者中还测量了甲血红蛋白水平。在基线时,COPD患者的RRS比健康受试者更高(RRS为10 Hz(RRS,10)4.97 +/- 2.19 vs 2.29 +/- 0.65 HPA.L-1.S)。在NO吸入期间,未观察到RR或XRS中的显着变化。 Mean variation in Rrs,10 while breathing NO was negligible and similar in the two groups (-0.10 +/- 0.13 hPa.L-1.s in COPD patients and -0.02 +/- 0.13 hPa.L-1.s in healthy subjects). Moreover, there were no differences in oxygen saturation, heart rate, tidal volume and breathing frequency during NO inhalation. Methaemoglobinaemia increased at the end of NO inhalation (from 0.48 +/- 0.18 to 0.81 +/- 0.16%), and this increment remained 10 min later (0.86 +/- 0.31%). From these results, we conclude that inhaled nitric oxide, at a concentration of 40 ppm, exerts no effect on respiratory system resistance in patients with chronic obstructive pulmonary disease or in healthy subjects. ER -