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首页> 外文期刊>Journal of spinal disorders & techniques. >Body Mass Index as an Indicator of Pulmonary Dysfunction in Patients With Adolescent Idiopathic Scoliosis
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Body Mass Index as an Indicator of Pulmonary Dysfunction in Patients With Adolescent Idiopathic Scoliosis

机译：体重指数作为青少年特发性脊柱侧弯患者肺功能障碍的指标

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Study Design:Prospective clinical study.Objectives:To investigate the factors correlated with pulmonary function in adolescent idiopathic scoliosis (AIS) patients, and to determine the influence of body mass index (BMI) on the pulmonary function.Summary of Background Data:Impaired pulmonary function has been reported in patients with AIS. The factors reported to affect pulmonary function included the curve magnitude, location of the apex vertebrae, decrease in thoracic kyphosis, and the number of vertebrae involved. A low BMI has been well confirmed in AIS patients. However, the relationship between BMI and pulmonary function has never been investigated.Methods:One hundred twenty female patients with a single thoracic curve were enrolled in this study. Pulmonary function test and radiographic examination were performed. Several radiographic parameters, including the curve magnitude, the curve type, location of the apical vertebra, the number of vertebrae involved, and the degree of thoracic kyphosis, were recorded. BMI was calculated according to the measurements of standing height and body weight. Patients were divided into 2 groups according to BMI, (group A >17.5 kg/cm(2) and group B 17.5 kg/cm(2)), and the pulmonary function was compared between the 2 groups with students t test. Partial correlation analysis and stepwise multiple regression analysis were used to assess the association between BMI and the results of the pulmonary function test. The receiver operating characteristics curve was created to identify the best dividing point for diagnostic variables.Results:The average percentage of predicted vital capacity, forced vital capacity, and forced expiratory volume in 1 second was significantly decreased in patients with a lower BMI. A positive correlation was found between BMI and pulmonary function (r=0.41, P<0.001). The stepwise regression analysis showed that low BMI was significantly associated with pulmonary function impairment (R-2=0.206, P<0.001). According to the receiver operating characteristics curve, patients with a BMI <17.7 kg/cm(2) are prone to have abnormal pulmonary function.Conclusions:BMI was found to be an important indicator for pulmonary function in AIS patients. The decreased BMI could explain approximately one-fifth of the variation in pulmonary impairment in AIS patients, which might shed some light on the rehabilitation of preoperative pulmonary function.
机译：研究设计：前瞻性临床研究。目的：探讨青少年特发性脊柱侧弯（AIS）患者与肺功能相关的因素，并确定体重指数（BMI）对肺功能的影响。背景资料摘要：肺功能受损据报道，AIS患者有功能障碍。据报道，影响肺功能的因素包括曲线大小，根尖椎骨的位置，胸椎后凸畸形的减少以及累及的椎骨数量。在AIS患者中已经很好地确认了低BMI。方法：本研究纳入了120例具有单一胸廓曲线的女性患者。进行肺功能检查和射线照相检查。记录了几个射线照相参数，包括曲线大小，曲线类型，根尖椎骨的位置，累及的椎骨数量和胸椎后凸度。根据站立高度和体重的测量值计算BMI。根据BMI将患者分为2组（A组> 17.5 kg / cm（2）和B组17.5 kg / cm（2）），并通过学生t检验比较两组之间的肺功能。使用偏相关分析和逐步多元回归分析来评估BMI与肺功能检查结果之间的关联。建立了接收器的工作特性曲线以找出诊断变量的最佳分界点。结果：BMI较低的患者在1秒内的预测肺活量，强迫肺活量和强迫呼气量的平均百分比显着降低。体重指数与肺功能呈正相关（r = 0.41，P <0.001）。逐步回归分析表明，低BMI与肺功能损害显着相关（R-2 = 0.206，P <0.001）。根据接受者的操作特征曲线，BMI <17.7 kg / cm（2）的患者容易出现肺功能异常。结论：BMI被认为是AIS患者肺功能的重要指标。降低的BMI可以解释AIS患者肺功能不全的大约五分之一，这可能为术前肺功能的恢复提供了一些启示。

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