| The Reliability and Accuracy of a Noncontact Electrocardiograph System for Screening Purposes. | |
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MedLine Citation:
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PMID: 22104072 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Background:Electrocardiography (ECG) requires the application of electrodes to the skin and often necessitates undressing. Capacitively coupled electrodes embedded in a normal chair would be a rational alternative for ECG screening. We evaluated the reliability and accuracy of ECG electrodes imbedded in a chair cushion.Methods:Two independent clinicians compared ECG recordings obtained using skin electrodes with recordings obtained using capacitively coupled electrodes that were embedded in a chair cushion in an anesthesiology premedication room, a cardiology outpatient ward, and a cardiology day ward. We analyzed the data to compare the sensitivity and specificity for the diagnosis of cardiac arrhythmias.Results:ECG recordings were obtained from 107 patients. Heart rate was accurately measured using the capacitively coupled electrodes, but motion artifacts made the identification of P and T waves unreliable. Signal quality was poor for patients with low body weight, patients wearing clothing containing mixed fibers, and patients wearing sweaty shirts.Conclusions:Heart rate was accurately measured, and some cardiac arrhythmias were correctly diagnosed using capacitive ECG electrodes. Capacitive electrodes embedded into an examination chair are a promising tool for preoperative screening. Improved artifact reduction algorithms are needed before capacitive electrodes will replace skin electrodes. |
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Authors:
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Michael Czaplik; Benjamin Eilebrecht; Rafael Walocha; Marian Walter; Patrick Schauerte; Steffen Leonhardt; Rolf Rossaint |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-11-21 |
Journal Detail:
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Title: Anesthesia and analgesia Volume: - ISSN: 1526-7598 ISO Abbreviation: - Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2011-11-22 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 1310650 Medline TA: Anesth Analg Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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From the *Department of Anesthesiology, University Hospital, RWTH Aachen, Aachen, Germany; |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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