Pistelli R, Fuso L, Muzzolon R, Bevignani G, Patalano F, Ciappi G
Servizio di Fisiopatologia Respiratoria, Università Cattolica S. Cuore, Roma, Italia.
Respiration. 1989;56(1-2):103-9. doi: 10.1159/000195784.
Two mini peak flow meters commonly used to monitorize the peak expiratory flow rate (PEFR) are compared to assess their agreement, precision and, with respect to a standard pneumotachygraph, accuracy. Precision of the mini-Wright peak flow meter is greater, possibly as result of a systematic overestimation of PEFR values. The Assess peak-flow meter is more accurate, but its ability to reproduce the actual well-known PEFR variability is dependent from the absolute level of air flow. The agreement between two instruments is very poor, both in asthmatics and in normals, so that it is mandatory to use always the same mini peak flow meter in population studies and during the follow-up of asthmatic patients.
对两种常用于监测呼气峰值流速（PEFR）的微型峰值流量计进行比较，以评估它们之间的一致性、精密度，以及相对于标准呼吸流速仪的准确性。微型赖特峰值流量计的精密度更高，这可能是由于对PEFR值的系统性高估。评估峰值流量计更准确，但其再现实际已知PEFR变异性的能力取决于气流的绝对水平。两种仪器之间的一致性在哮喘患者和正常人中都很差，因此在人群研究和哮喘患者随访期间必须始终使用同一台微型峰值流量计。
