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首页> 外文期刊>Clinical journal of sport medicine: official journal of the Canadian Academy of Sport Medicine >The paralympic winter athlete
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The paralympic winter athlete

机译：残奥会冬季运动员

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Objectives: Although congestive heart failure (CHF), chronic obstructive pulmonary disease (COPD), and asthma patients typically present with abnormal auscultatory findings on lung examination, respiratory sounds are not normally subjected to rigorous analysis. The aim of this study was to evaluate in detail the distribution of respiratory sound intensity in CHF, COPD, and asthma patients during acute exacerbation. Methods: Respiratory sounds throughout the respiratory cycle were captured and displayed using an acoustic-based imaging technique. Breath sound distribution was mapped to create a gray-scale sequence of two-dimensional images based on intensity of sound (vibration). Consecutive CHF (n = 22), COPD (n = 19), and asthma (n = 18) patients were imaged at the time of presentation to the emergency department (ED). Twenty healthy subjects were also enrolled as a comparison group. Geographical area of the images and respiratory sound patterns were quantitatively analyzed. Results: In healthy volunteers and COPD patients, the median (interquartile range [IQR]) geographical areas of the vibration energy images were similar, at 75.6 (IQR = 6.0) and 75.8 (IQR = 10.8) kilopixels, respectively (p > 0.05). Compared to healthy volunteers and COPD patients, areas for CHF and asthma patients were smaller, at 66.9 (IQR = 9.9) and 53.9 (IQR = 15.6) kilopixels, respectively (p < 0.05). The geographic area ratios between the left and right lungs for healthy volunteers and CHF and COPD patients were 1.0 (IQR = 0.2), 1.0 (IQR = 0.2), and 1.0 (IQR = 0.1), respectively. Compared to healthy volunteers, the geographic area ratio between the left and right lungs for asthma patients was 0.5 (IQR = 0.4; p < 0.05). In healthy volunteers and CHF patients, the ratios of vibration energy values at peak inspiration and expiration (peak I/E ratio) were 4.6 (IQR = 4.4) and 4.7 (IQR = 3.5). In marked contrast, the peak I/E ratios of COPD and asthma patients were 3.4 (= 2.1) and 0.1 (IQR = 0.3; p < 0.05), respectively. Conclusions: The pilot data generated in this study support the concept that relative differences in respiratory sound intensity may be useful in distinguishing acute dyspnea caused by CHF, COPD, or asthma.
机译：目的：尽管充血性心力衰竭（CHF），慢性阻塞性肺疾病（COPD）和哮喘患者通常在肺部检查时出现听诊异常，但通常不对呼吸音进行严格的分析。这项研究的目的是详细评估急性发作期间CHF，COPD和哮喘患者的呼吸声强度分布。方法：使用基于声音的成像技术捕获并显示整个呼吸周期的呼吸声。映射呼吸音分布以基于声音强度（振动）创建二维图像的灰度序列。在向急诊科（ED）出诊时对连续的CHF（n = 22），COPD（n = 19）和哮喘（n = 18）患者进行了成像。还纳入了二十名健康受试者作为比较组。图像的地理区域和呼吸声模式进行了定量分析。结果：在健康志愿者和COPD患者中，振动能量图像的中值（四分位间距[IQR]）地理区域相似，分别为75.6（IQR = 6.0）和75.8（IQR = 10.8）千像素（p> 0.05） 。与健康志愿者和COPD患者相比，CHF和哮喘患者的面积较小，分别为66.9（IQR = 9.9）和53.9（IQR = 15.6）千像素（p <0.05）。健康志愿者与CHF和COPD患者的左右肺之间的地理面积比分别为1.0（IQR = 0.2），1.0（IQR = 0.2）和1.0（IQR = 0.1）。与健康志愿者相比，哮喘患者的左右肺之间的地理比例为0.5（IQR = 0.4; p <0.05）。在健康志愿者和CHF患者中，峰值吸气和呼气时的振动能量值之比（峰值I / E比）分别为4.6（IQR = 4.4）和4.7（IQR = 3.5）。与之形成鲜明对比的是，COPD和哮喘患者的峰值I / E比分别为3.4（= 2.1）和0.1（IQR = 0.3; p <0.05）。结论：本研究产生的初步数据支持这样的概念，即呼吸声强度的相对差异可能有助于区分由CHF，COPD或哮喘引起的急性呼吸困难。

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