背景：肺活量测定是评估肺功能最常用的测试。2007年发布了准则，为学龄前儿童的实施和解释定义了可接受性和可重复性标准。我们的目标是量化学龄前患者对这些标准的实际遵守情况。
方法：对智利天主教大学儿科呼吸实验室2至5岁患者的基线肺活量测定进行了综述，因反复或持续咳嗽或喘息而入院。仅考虑首次接受测试的患者获得的结果。按照国际标准进行了分析。
结果：共有93个肺活量测定结果（平均年龄57.4±8.6个月，获得48只雄性），其中44人(47%)符合所有可接受的标准，87（93%）获得≥0.5秒的呼气时间，67例(72%)患者的呼气末流量从峰值流量开始≤10%.用力肺活量（FVC）和一秒钟用力呼气量（FEV1）的测量变化非常低（组内相关系数>0.9）。
结论：我们中心有可能满足学前儿童肺活量测定的可接受性和可重复性标准，这与以前的报道相似。和年龄较大的孩子一样，这项测试完全推荐给需要肺功能研究的学龄前儿童。
BACKGROUND: Spirometry is the most used test to evaluate pulmonary function.
Guidelines that defined acceptability and repeatability criteria for its implementation and interpretation among preschoolers were published in 2007. Our objective was to quantify the actual compliance with these criteria among pre-school patients.
METHODS: A review was performed on the baseline spirometry measured in patients aged 2 to 5 years in the Pediatric Respiratory Laboratory of the Pontificia Universidad Católica de Chile, who were admitted due to recurrent or persistent coughing or wheezing. Only those results obtained in patients who took the test for the first time were considered. They were analyzed by international standards.
RESULTS: A total of 93 spirometry results (mean age 57.4 ± 8.6 months, 48 males) were obtained, of which 44 (47%) met all acceptable criteria, 87 (93%) obtained expiratory time of ≥ 0.5seconds, and 67 (72%) of the patients had an end-expiratory flow of ≤10% from peak flow. The variation in the measurement of forced vital capacity (FVC) and forced expiratory volume in one second (FEV1) was very low (intraclass correlation coefficient > 0.9).
CONCLUSIONS: It was possible to meet the acceptability and repeatability criteria for spirometry among pre-school children in our Center, which was similar to previous reports. As in older children, this test is fully recommended for pre-school children who require lung function studies.
PDF(Sci-hub)