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Research Article

Academia Journal of Scientific Research Research 8(6): 207-217, June 2020
DOI: 10.15413/ajsr.2020.0110
ISSN: 2315-7712
©2020 Academia Publishing 


The use of an electronic stethoscope with dedicated software for cardiovascular screening of patients prepared for hip replacement


Accepted 16th March, 2020

Katarzyna MAJKA1,2, Wojciech LEJKOWSKI3, Artur PEPLONSKI2, Tomasz GRYCEWICZ4, Andrzej KRUPIENICZ1, Andrzej P. DOBROWOLSKI3 and Robert OLSZEWSKI5,6

1Warsaw Medical University, Department of Fundamental of Nursing, Ciolka 27, 01-445 Warsaw, Poland.
2Military Medical Institute in Warsaw, Operation Block of the Traumatology and Orthopedics Clinic, Szaserow 128, 04-141Warsaw, Poland.
3 Military University of Technology, Faculty of Electronics, Kaliskiego 2, 00-908 Warsaw, Poland.
4Clinic of Interventional Cardiology and Heart Arrhythmias. Medical University of Lodz - Central Veterans Hospital Zeromskiego 113, 90-549 Lodz, Poland.
5Department of Gerontology, Public Health and Didactics National Institute of Geriatrics, Rheumatology and Rehabilitation, Spartanska 1, 02-637 Warsaw, Poland.
6Department of Ultrasound, Institute of the Fundamental Technological Research of the Polish Academy of Sciences, Pawinskiego5 B, 02-106 Warsaw, Poland.

Cardiovascular disease (CVD) is one of the major causes of perioperative complications. Screening of patients referred to major surgery is a costly and time and resources- consuming process. The study aimed to assess the usefulness of an electronic stethoscope with dedicated analytical software operated by a nurse for detecting heart disease in patients prepared for major orthopedic surgery. The study group consisted of 137 patients aged (46 – 91) with defined cardiovascular diseases qualified for hip or knee replacement surgery and 94 healthy age-matched volunteers. Heart auscultation with Littmann electronic stethoscope using Littmann® StethAssist™ Heart and Lung Sound Visualization Software software was conducted and analyzed by a trained nurse. The signal recorded was analyzed by the blinded researcher using dedicated custom- made algorithm. Finally, 91 signals (52 CVD (+) patients, 39 CVD (-) patients) were analyzed. Eventually a classifier with a sensitivity of 92% and a specificity of 97% was obtained in a group. The global accuracy of the classifier was 95%. Heart auscultation by nursing staff using Littmann® StethAssist™ Heart and Lung Sound Visualization Software with dedicated custom- made can be cheap and noninvasive method of identifying patients with cardiovascular disease made algorithm for arthroplasty.

Key words: Electronic stethoscope, heart auscultation, nurse, arthroplasty, cardiovascular disease.

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Cite this article as:

Majka K, Wojciech L, Artur P, Grycewicz T, Krupienicz A, Dobrowolski AP, Olszewskis R (2020). The use of an electronic stethoscope with dedicated software for cardiovascular screening of patients prepared for hip replacement. Acad. J. Sci. Res. 8(6): 207-217.


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