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UC scientists develop solution to enable conventional auscultation in Covid-19 patients

The impossibility of using the stethoscope creates difficulties in the diagnosis and proper evaluation of patients with Covid-19 and requires the use of other more expensive diagnostic methods, such as X-rays or ultrasound.

The stethoscope is an essential instrument in the practice of medicine. However, in the face of the Covid-19 pandemic, doctors, especially pulmonologists and internists, were forced to abandon this means of diagnosis, due to the individual protection measures required of health professionals and the imposition of a safe distance from infected patients, to avoid the risk of contagion.

A major obstacle that has just been overcome thanks to a technological solution developed by a team of scientists from the Faculty of Science and Technology of the University of Coimbra (FCTUC), in partnership with doctors Carlos Robalo Cordeiro and Tiago Alfaro, from the Pneumology Service of Coimbra Hospital and University Center (CHUC).

Basically, scientists have developed software that allows the remote connection between the stethoscope placed on the patient and the doctor, using an android phone, a commercial electronic stethoscope and earphones. The connection can be made by cable or by bluetooth system.

Joao Santos

 

«It is a very simple engineering solution, but it solves a major operational problem that doctors face, allowing to restore the use of an essential diagnostic and prognostic instrument», affirm the solution’s authors, Henrique Madeira, João Santos, and Paulo de Carvalho, from the Center for Informatics and Systems of the University of Coimbra (CISUC).

«With pulmonary auscultation, characteristic sounds of different bronchopulmonary clinical situations can be heard and distinguished. With this solution, it will be possible to obtain this useful information remotely and allow a sustained therapeutic position to be taken», highlights the pulmonologist Carlos Robalo Cordeiro.

The solution will be made available free of charge to the entire international medical community. To do so, simply download the “SafeSteth” application from the Google Play Store and purchase a Littmann electronic stethoscope, whose commercial value varies between 200 and 300 euros.

Paulo de Carvalho

The researchers will also place the source code (software) in the public domain, so that other scientists can contribute to improving and / or extending the functionality of the solution now developed.

This technology was created as part of the research project “Lung @ ICU – Advanced tools for diagnosis and prognosis in pneumology @Intensive Care”, funded by the Foundation for Science and Technology (FCT), focused on the development of an integrated set of tools of diagnosis and prognosis based on Artificial Intelligence (AI), based on remote auscultation of chest sound and electrical impedance tomography (EIT).

This project aims to respond to three major challenges faced in current hospital environments to combat pandemic diseases: difficulties in the diagnosis and proper evaluation of patients with Covid-19, shortage of professionals trained in pneumology and intensive care units (ICU) and need of decision support tools suitable for the diagnosis and accurate prognosis of the evolution of the disease.

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