Learning Resources Child's Stethoscope

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This stethoscope bundle has a durable, waterproof carrying case that keeps the product secure. This may be a good option for someone who is looking for a stethoscope they can bring while traveling. There are several limitations to our study. The sample size was small; all of the auscultations came from only 57 patients, and only three cardiologists participated in this study. The cardiologists had only two weeks to become familiar with the electronic stethoscope before the study started. The nonrandomized nature of the study, which included only patients who had murmurs, might be a source of selection bias. We also did not compare the intensity of murmurs with the severity of the lesions determined by echocardiography because this study aimed to observe the capability of detecting murmurs by the Stemoscope. Kappa statistics are often used to evaluate consistency, but they require the same number of categories observed by two observers. Since we did not include normal controls without murmurs in the echocardiography-based evaluation, Kappa values and specificity could not be calculated in this comparison. The company is known for using high quality materials (such as steel, aluminum, flexible tubing, and soft earpieces), in addition to superior design and manufacturing. This combo produces a stethoscope that provides the best sound quality possible. Additionally, longer tubing gives you better access (especially since some animals don’t want you right in their space), and a double lumen for better sound quality, since vets work in noisier and more varied environments,” she says. Sanei S, Ghodsi M, Hassani H. An adaptive singular spectrum analysis approach to murmur detection from heart sounds. Med Eng Phys. 2011;33:362–7.

Palaniappan R, Sundaraj K, Ahamed NU, Arjunan A, Sundaraj S. Computer-based Respiratory Sound Analysis: A Systematic Review. IETE Tech Rev 2013;30:248–56A total of 57 patients with murmurs were recruited, and echocardiographs were performed. Three cardiologists were asked to correctly categorize heart sounds (both systolic murmur and diastolic murmur) as normal vs. abnormal with both the Stemoscope and a traditional acoustic stethoscope under different conditions. Firstly, we compared the in-person auscultation agreement between Stemoscope and the conventional acoustic stethoscope. Secondly, we compared tele-auscultation (recorded heart sounds) agreement between Stemoscope and acoustic results. Thirdly, we compared both the Stemoscope tele-auscultation results and traditional acoustic stethoscope in-person auscultation results with echocardiography. Finally, ten other cardiologists were asked to complete a qualitative questionnaire to assess their experience using the Stemoscope. Results

There was no significant difference in the accuracy and sensitivity between the electronic Stemoscope and traditional acoustic stethoscopes when using echocardiography as the gold standard, which was similar to other studies [ 27, 28]. There seemed to be a trend that the Stemoscope was more accurate than acoustic stethoscopes for both systolic (89% vs. 86%) and diastolic (47% vs. 40%) murmurs. We expect that Stemoscope tele-auscultation will be used primarily for screening purposes where sensitivity is paramount. Regardless, the auscultation results should be placed in an appropriate clinical context, ultimately increasing diagnostic accuracy. We also noted that the sensitivity to diastolic murmurs was low, mainly due to the low-frequency characteristic of diastolic murmurs. However, it is also related to the design of this study because the number of diastolic murmurs in this study was relatively small, which led to a significant variation. We also know that excluding murmurs of grade 1 intensity could significantly increase sensitivity, but we did not exclude these [ 29]. In addition, we enrolled patients with murmurs, so the specificity could not be calculated because there were no patients who did not have murmurs. In our study, the most frequent valvular abnormality was mitral regurgitation, and our cardiologists were aged 40 to 45 years. Because we gradually lose high-frequency hearing as we age [ 30], electronic stethoscopes may be helpful for geriatric doctors, especially for high-frequency murmurs caused by reflux [ 31]. Moreover, three aortic regurgitation murmurs and one mitral stenosis murmur were correctly heard with Stemoscope tele-auscultation, but missed with acoustic in-person auscultation, which demonstrated that the electronic stethoscope also has an advantage in recognizing diastolic murmurs.Trips to the doctor can be very frightening for young children and all the explaining in the world doesn't seem to help reassure them. In a study conducted by 3M, the maker of the Littman stethoscope, the company found that patient heart sounds were four times louder through the diaphragm of a Littmann stethoscope than that of the competitor. Which stethoscope is best for vets?