Importance of Editing Raw ECG Data When Performing Heart Rate Variability Analysis

2.50
Hdl Handle:
http://hdl.handle.net/10755/159429
Type:
Presentation
Title:
Importance of Editing Raw ECG Data When Performing Heart Rate Variability Analysis
Abstract:
Importance of Editing Raw ECG Data When Performing Heart Rate Variability Analysis
Conference Sponsor:Midwest Nursing Research Society
Conference Year:2003
Author:Winters, Jill
Contact Address:CON, PO Box 1881, Milwaukee, WI, 53201-1881, USA
Problem: Analysis of heart rate variability (HRV) has increased dramatically during the past 10 years. With this increase, a proliferation of equipment to perform HRV analysis has been introduced. Many of these systems do not allow the operator to access or edit raw ECG data. Because valid and reliable HRV analysis is dependent upon correct identification of presence and morphology of ECG complexes, it is imperative that these activities are carried out correctly. Purpose: Therefore, the purpose of this study was to compare measures of HRV in edited and unedited recordings of 24-hour ECG recordings. Theoretical Framework: This study was based on principles of measurement and physiological theory. Subjects: 24-hour Holter recordings were collected from 20 subjects who suffered acute myocardial infarction during the previous 72 hours. Method: It was hypothesized that HRV measures would differ when edited and unedited ECG recordings were compared. After obtaining informed consent, Holter recorders were attached to each subject, and 24 hours of data were collected. ECG data were downloaded twice, and one version was edited. Corrected recordings were coded with respect to need for extensive (>4 hours) or minimal editing (4 or less hours). Both frequency and time domain measures of HRV were performed on both edited and unedited Holter recordings. Results: Time required for editing recordings ranged from approximately 30 minutes to more than 8 hours. Statistical analysis revealed significant differences in measures of HRV, number of QRS complexes identified, and ECG morphology classification in edited and unedited recordings. Differences were more marked in recordings requiring four or more hours of editing. Conclusions: These results support the necessity of careful editing and utilization of equipment that allows these activities to be carried out. Reliability and validity may be greatly compromised if these procedures are omitted. AN: MN030198
Repository Posting Date:
26-Oct-2011
Date of Publication:
17-Oct-2011
Sponsors:
Midwest Nursing Research Society

Full metadata record

DC FieldValue Language
dc.typePresentationen_GB
dc.titleImportance of Editing Raw ECG Data When Performing Heart Rate Variability Analysisen_GB
dc.identifier.urihttp://hdl.handle.net/10755/159429-
dc.description.abstract<table><tr><td colspan="2" class="item-title">Importance of Editing Raw ECG Data When Performing Heart Rate Variability Analysis</td></tr><tr class="item-sponsor"><td class="label">Conference Sponsor:</td><td class="value">Midwest Nursing Research Society</td></tr><tr class="item-year"><td class="label">Conference Year:</td><td class="value">2003</td></tr><tr class="item-author"><td class="label">Author:</td><td class="value">Winters, Jill</td></tr><tr class="item-address"><td class="label">Contact Address:</td><td class="value">CON, PO Box 1881, Milwaukee, WI, 53201-1881, USA</td></tr><tr><td colspan="2" class="item-abstract">Problem: Analysis of heart rate variability (HRV) has increased dramatically during the past 10 years. With this increase, a proliferation of equipment to perform HRV analysis has been introduced. Many of these systems do not allow the operator to access or edit raw ECG data. Because valid and reliable HRV analysis is dependent upon correct identification of presence and morphology of ECG complexes, it is imperative that these activities are carried out correctly. Purpose: Therefore, the purpose of this study was to compare measures of HRV in edited and unedited recordings of 24-hour ECG recordings. Theoretical Framework: This study was based on principles of measurement and physiological theory. Subjects: 24-hour Holter recordings were collected from 20 subjects who suffered acute myocardial infarction during the previous 72 hours. Method: It was hypothesized that HRV measures would differ when edited and unedited ECG recordings were compared. After obtaining informed consent, Holter recorders were attached to each subject, and 24 hours of data were collected. ECG data were downloaded twice, and one version was edited. Corrected recordings were coded with respect to need for extensive (&gt;4 hours) or minimal editing (4 or less hours). Both frequency and time domain measures of HRV were performed on both edited and unedited Holter recordings. Results: Time required for editing recordings ranged from approximately 30 minutes to more than 8 hours. Statistical analysis revealed significant differences in measures of HRV, number of QRS complexes identified, and ECG morphology classification in edited and unedited recordings. Differences were more marked in recordings requiring four or more hours of editing. Conclusions: These results support the necessity of careful editing and utilization of equipment that allows these activities to be carried out. Reliability and validity may be greatly compromised if these procedures are omitted. AN: MN030198 </td></tr></table>en_GB
dc.date.available2011-10-26T22:00:23Z-
dc.date.issued2011-10-17en_GB
dc.date.accessioned2011-10-26T22:00:23Z-
dc.description.sponsorshipMidwest Nursing Research Societyen_GB
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