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Parsaei, H, Vakily, A, Shafiei, A M. (1395). A Wireless Electronic Esophageal Stethoscope for Continuous Monitoring of Cardiovascular and Respiratory Systems during Anaesthesia. سامانه مدیریت نشریات علمی, 7(1), 69-78.
H Parsaei; A Vakily; A M Shafiei. "A Wireless Electronic Esophageal Stethoscope for Continuous Monitoring of Cardiovascular and Respiratory Systems during Anaesthesia". سامانه مدیریت نشریات علمی, 7, 1, 1395, 69-78.
Parsaei, H, Vakily, A, Shafiei, A M. (1395). 'A Wireless Electronic Esophageal Stethoscope for Continuous Monitoring of Cardiovascular and Respiratory Systems during Anaesthesia', سامانه مدیریت نشریات علمی, 7(1), pp. 69-78.
Parsaei, H, Vakily, A, Shafiei, A M. A Wireless Electronic Esophageal Stethoscope for Continuous Monitoring of Cardiovascular and Respiratory Systems during Anaesthesia. سامانه مدیریت نشریات علمی, 1395; 7(1): 69-78.

A Wireless Electronic Esophageal Stethoscope for Continuous Monitoring of Cardiovascular and Respiratory Systems during Anaesthesia

Journal of Biomedical Physics and Engineering
مقاله 8، دوره 7، شماره 1، خرداد 2017، صفحه 69-78    اصل مقاله (2.1 M)
نوع مقاله: Original Research
نویسندگان
H Parsaei* 1، 2؛ A Vakily1؛ A M Shafiei1
1Department of Medical Physics and Engineering, Shiraz University of Medical Sciences, Shiraz, Iran
2Health Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
چکیده
Background: The basic requirements for monitoring anesthetized patients during surgery are assessing cardiac and respiratory function. Esophageal stethoscopes have been developed for this purpose, but these devices may not provide clear heart and lung sound due to existence of various noises in operating rooms. In addition, the stethoscope is not applicable for continues monitoring, and it is unsuitable for observing inaccessible patients in some conditions such as during CT scan.Objective: A wireless electronic esophageal stethoscope is designed for continues auscultation of heart and lung sounds in anesthetized patients. The system consists of a transmitter and a receiver. The former acquires, amplifies and transmits the acquired sound signals to the latter via a frequency modulation transmitter. The receiver demodulates, amplifies, and delivers the received signal to a headphone to be heard by anesthesiologist. Results: The usability and effectiveness of the designed system was qualitatively evaluated by 5 anesthesiologists in Namazi Hospital and Shahid Chamran Hospital, Shiraz, Iran on 30 patients in several operating rooms in different conditions; e.g., when electro surgery instruments are working. Fortunately, the experts on average ranked good quality for the heard heart and lung sounds and very good on the user friendly being of the instrument.Conclusion: Evaluation results demonstrate that the developed system is capable of capturing and transmitting heart and lung sounds successfully. Therefore, it can be used to continuously monitor anesthetized patients’ cardiac and respiratory function. Since via the instrument wireless auscultation is possible, it could be suitable for observing inaccessible patients in several conditions such as during CT scan. 
کلیدواژه‌ها
Anesthetic Monitoring؛ Anesthetic Monitoring Equipment؛ Bio instrument؛ esophageal stethoscope؛ Electronic stethoscope؛ Heart Sound؛ Lung Sound
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