Alvarez Torices J C, Diego Domínguez F, Franch Nadal J, Alvarez Guisasola F, Pablo Pons M L
Servicio de Medicina Familiar y Comunitaria, Hospital Virgen Blanca, León.
An Med Interna. 1990 Nov;7(11):570-4.
The aim of the study was to evaluate the utility of the extrahospital use of "Peak Flow Meter" (PFM) in patients with an acute respiratory disease. 70 patients were studied. PFM, arterial gasometry, physical examination and dyspnea evaluation were performed on all of them. The PFM were posteriorly transformed into the rate related to the ideal result, following the Nunn and Gregg equation (1989). We found an association between the PFM rate and the different arterial blood gas test results, and a relation to the degree of dyspnea and the listening of sibilant rales. There was more significance with the rate of PFM than with the PFM transformed in all cases, and only association was found between arterial blood changes and PFM. We concluded that all patients with an acute respiratory disease with a rate of PFM greater than 50% should be evaluated carefully because of the probability of existing hypoxemia, and those with rate of less than 20% must be referred to hospital.
本研究的目的是评估“峰值流量计”（PFM）在院外对急性呼吸道疾病患者的应用价值。对70例患者进行了研究。对所有患者均进行了PFM、动脉血气分析、体格检查和呼吸困难评估。按照Nunn和Gregg方程（1989年），将PFM结果进一步转换为与理想结果相关的比率。我们发现PFM比率与不同的动脉血气检测结果之间存在关联，且与呼吸困难程度及哮鸣音听诊有关。在所有病例中，PFM比率比转换后的PFM更具显著性，且仅在动脉血气变化与PFM之间发现了关联。我们得出结论，所有急性呼吸道疾病患者，若PFM比率大于50%，由于存在低氧血症的可能性，应进行仔细评估；而比率小于20%的患者必须转诊至医院。
