Department of Spine Disorders and Pediatric Orthopaedics, University of Medical Sciences, Poznań, Poland.
Rehasport Clinic, Poznań, Poland.
Stud Health Technol Inform. 2021 Jun 28;280:231-234. doi: 10.3233/SHTI210474.
A standing body height is a variable used to calculate pulmonary parameters during spirometry examination. In adolescents with idiopathic scoliosis, the loss of the body height is observed, and it may potentially influence the results of pulmonary testing. The study aimed to analyze pulmonary parameters in adolescents with idiopathic scoliosis in relation to the measured versus the corrected body height. Preoperative pulmonary testing and radiographic evaluation were performed in 39 children (29 females, 10 males) aged 12-17 years. Forced vital capacity (FVC) and forced expiratory volume in one second (FEV1) were measured. The single best effort was analyzed. Thoracic Cobb angle ranged 50°-104°. Corrected body height was calculated according to the Stokes' formula. The subgroup analysis was performed for the subjects with curves 50°-74° (N=26) versus 75°-104° curves (N=13). Mean measured body height was 166.1±9.0 cm versus 168.9±8.9 cm mean corrected body height. The %FVC obtained for the measured height was significantly higher than obtained for the corrected height: 84.6% ±15.6 vs. 81.6% ±15.6, p<0.001. The %FEV1 obtained for the measured height was significantly higher than obtained for the corrected height: 79.8% ±16.3 vs. 77.35% ±15.9, p<0.001. The subgroup analysis revealed significant differences in %FVC and %FEV1 calculated for the measured versus the corrected body height, p<0.001. Corrected body height significantly influences the results of pulmonary parameters measurement. In consequence, it may influence the analysis of the pulmonary status of children with idiopathic scoliosis.
立位身高是在进行肺活量检查时用于计算肺参数的变量。在特发性脊柱侧凸的青少年中，观察到身高的丧失，这可能潜在地影响肺测试的结果。本研究旨在分析特发性脊柱侧凸青少年的肺参数与测量身高和校正身高的关系。对 39 名 12-17 岁的儿童（29 名女性，10 名男性）进行了术前肺功能检查和影像学评估。测量用力肺活量（FVC）和第一秒用力呼气量（FEV1）。分析了单次最佳用力呼气量。胸段 Cobb 角范围为 50°-104°。校正身高根据 Stokes 公式计算。对曲线 50°-74°（N=26）和 75°-104°（N=13）的患者进行了亚组分析。测量身高的平均身高为 166.1±9.0cm，校正身高的平均身高为 168.9±8.9cm。身高测量的 %FVC 明显高于身高校正的 %FVC：84.6%±15.6 vs. 81.6%±15.6，p<0.001。身高测量的 %FEV1 明显高于身高校正的 %FEV1：79.8%±16.3 vs. 77.35%±15.9，p<0.001。亚组分析显示，身高测量与校正身高计算的 %FVC 和 %FEV1 差异显著，p<0.001。校正身高显著影响肺参数测量的结果。因此，它可能会影响对特发性脊柱侧凸儿童肺功能状态的分析。
