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Heart sounds are altered by open cardiac surgery
Hurtig-Wennlöf, A., School of Health and Medical Sciences/Clinical Medicine, Örebro University, SE-701 82 Örebro, Sweden.
Linköping University, Department of Biomedical Engineering, Physiological Measurements. Linköping University, The Institute of Technology.
Department of Clinical Physiology, Örebro University Hospital, Örebro, Sweden.
Department of Clinical Physiology, Örebro University Hospital, Örebro, Sweden.
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2009 (English)In: Experimental and Clinical Cardiology, ISSN 1205-6626, Vol. 14, no 2, 18-20 p.Article in journal (Refereed) Published
Abstract [en]

BACKGROUND AND OBJECTIVE: Patients have reported that they perceive their own heart sounds differently after open cardiac surgery than before the surgery. The present study was designed to investigate whether changes in heart sounds can be quantitatively measured. METHOD: Heart sounds were recorded from 57 patients undergoing coronary artery bypass graft (CABG) surgery and from a control group of 10 subjects. The so-called Hjorth descriptors and the main frequency peak were compared before and after surgery to determine whether the characteristics of the heart sounds had changed. RESULTS: At a group level, the first heart sound was found to be significantly different after CABG surgery. Generally, the heart sounds shifted toward a lower frequency after surgery in the CABG group. No significant changes were found in the control group. CONCLUSIONS: Heart sounds are altered after CABG surgery. The changes are objectively quantifiable and may also be subjectively perceived by the patients.

Place, publisher, year, edition, pages
2009. Vol. 14, no 2, 18-20 p.
Keyword [en]
Cardiac surgery; Counselling; Heart sound; Phonocardiography
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-53017OAI: diva2:286314
Available from: 2010-01-14 Created: 2010-01-14 Last updated: 2010-01-14

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