休息的扩散能力和放射性疾病的严重程度预测了前美国煤矿工人的运动与气体交换异常
Robert A Cohen1,2, Leonard H T Go1,2, Lee Friedman1
1Environmental and Occupational Health Sciences Division, School of Public Health, University of Illinois Chicago, Chicago, Illinois, USA.
休息扩散能力 (DLCO) 最好预测煤矿工人的运动异常. 肺结核病的放射性严重程度也与运动障碍相关,支持DLCO测试用于残疾评估.
科学领域:
- 职业医学 职业医学是专业的.
- 肺部生理学 肺部生理学
- 放射学 放射学是指放射学
背景情况:
- 美国劳工部 (DOL) 目前不资助扩散能力 (DLCO) 或心肺运动测试 (CPET) 的代谢测量用于煤矿工人的残疾评估.
- 最大CPET和动脉血液气体采样对于潜在的运动限制的煤矿工人来说是个挑战.
- 探索休息DLCO,放射性疾病严重程度和CPET异常之间的关系对于准确的残疾评估至关重要.
研究的目的:
- 调查休息扩散能力 (DLCO) 对前美国煤矿工心肺运动测试 (CPET) 异常的预测价值.
- 检查放射性肺炎症严重程度与CPET发现之间的关联.
- 为煤矿工人残疾评估协议的潜在更新提供信息.
主要方法:
- 分析了2005-2015年对男性煤矿工人的评估数据.
- 采用了多变量线性和逻辑回归模型.
- 关键变量包括预测的百分比 (pp) FEV1,DLCO,VO2max,A-a梯度,VD/Vt,PO2和放射性肺炎症类别.
主要成果:
- DLCOpp强烈预测了一个禁用PO2 (或2.33),表现优于FEV1pp (或1.18).
- 增加的放射性小不透明性肺结核病的严重程度与更高的PO2失效率相关 (每个子类别增加42%).
- 显著的矿工百分比表现出异常的CPET参数:32%异常的A-a梯度,20%的Vd/Vt升高,以及34%的低VO2max.
结论:
- 休息DLCO是预测煤矿工人CPET异常的最有效的肺功能测试.
- 肺结核病的放射性严重程度与运动障碍显著相关.
- 这些发现支持资助DLCO测试,并建议将"简单"肺炎症重命名为"小不透明"肺炎症.
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