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首页> 外文期刊>Air medical journal >Auscultation in flight: comparison of conventional and electronic stethoscopes.
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Auscultation in flight: comparison of conventional and electronic stethoscopes.

机译：飞行中的听诊：传统听诊器和电子听诊器的比较。

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OBJECTIVES: The ability to auscultate during air medical transport is compromised by high ambient-noise levels. The aim of this study was to assess the capabilities of a traditional and an electronic stethoscope (which is expected to amplify sounds and reduce ambient noise) to assess heart and breath sounds during medical transport in a Boeing C135. METHODS: We tested one model of a traditional stethoscope (3MTM Littmann Cardiology IIITM) and one model of an electronic stethoscope (3MTM Littmann Stethoscope Model 3000). We studied heart and lung auscultation during real medical evacuations aboard a medically configured C135. For each device, the quality of auscultation was described using a visual rating scale (ranging from 0 to 100 mm, 0 corresponding to "I hear nothing," 100 to "I hear perfectly"). Comparisons were accomplished using a t-test for paired values. RESULTS: A total of 36 comparative evaluations were performed. For cardiac auscultation, the value of the visual rating scale was 53 +/- 24 and 85 +/- 11 mm, respectively, for the traditional and electronic stethoscope (paired t-test: P = .0024). For lung sounds, quality of auscultation was estimated at 27 +/- 17 mm for traditional stethoscope and 68 +/- 13 for electronic stethoscope (paired t-test: P = .0003). The electronic stethoscope was considered to be better than the standard model for hearing heart and lung sounds. CONCLUSION: Flight practitioners involved in air medical evacuation in the C135 aircraft are better able to practice auscultation with this electronic stethoscope than with a traditional one.
机译：目的：在空气医疗运输过程中听诊的能力受到高环境噪声水平的损害。这项研究的目的是评估传统听诊器和电子听诊器（有望放大声音并减少环境噪音）在波音C135进行医疗运输时评估心脏和呼吸音的能力。方法：我们测试了一种传统听诊器（3MTM Littmann Cardiology IIITM）和一种电子听诊器（3MTM Littmann Stethoscope 3000型）模型。我们在经过医疗配置的C135上进行实际医疗后送期间研究了心脏和肺部听诊。对于每个设备，听诊质量均使用视觉评定量表（范围从0到100 mm，0对应于“我什么都听不到”，100对应于“我听得很好”）来描述。使用t检验对配对值进行比较。结果：总共进行了36次比较评价。对于心脏听诊，对于传统听诊器和电子听诊器，视觉评定量表的值分别为53 +/- 24和85 +/- 11 mm（配对t检验：P = 0.0024）。对于肺音，传统听诊器的听诊质量估计为27 +/- 17 mm，而电子听诊器的听诊质量估计为68 +/- 13（配对t检验：P = .0003）。电子听诊器被认为比听心肺音的标准型号更好。结论：与传统的听诊器相比，C135飞机中从事空中医疗后送的飞行从业人员更能进行听诊。

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