Impedance cardiography: a comparison of cardiac output vs waveform analysis for assessing left ventricular systolic dysfunction.
Early detection of asymptomatic left ventricular systolic dysfunction (LVSD) is beneficial in managing heart failure. Recent studies have cast doubt on the usefulness of cardiac output as an indicator of LVSD. In impedance cardiography (ICG), the dZ/dt waveform has a systolic wave called the E wave....
| Publicado en: | Progress in Cardiovascular Nursing Vol. 22; no. 3; pp. 145 - 152 |
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| Autores principales: | , , |
| Formato: | pictorial research tables/charts tracings Journal Article |
| Publicado: |
Wiley-Blackwell
Summer2007
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106200526&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106200526 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 08897204 D6V jtl: Progress in Cardiovascular Nursing issn: 08897204 maglogo: Y pubinfo: dt: Summer2007 vid: 22 iid: 3 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 106200526 106200526 2009668778 10.1111/j.0889-7204.2007.05650.x NLM17786090 106200526 ppf: 145 ppct: 7 formats: fmt: @attributes: type: P tig: atl: Impedance cardiography: a comparison of cardiac output vs waveform analysis for assessing left ventricular systolic dysfunction. aug: au: DeMarzo AP Kelly RF Calvin JE affil: Dermed Diagnostics Inc, 2-S 558 White Birch Lane, Wheaton, IL 60187; ademarzo.dermed@att.net sug: subj: Cardiac Output Determination Cardiography, Impedance Ventricular Dysfunction, Left Diagnosis Waveforms Cardiography, Impedance Equipment and Supplies Clinical Research Coronary Care Units Descriptive Statistics Electrocardiography Electrodes Female Illinois Inpatients Male Middle Age Waveforms Evaluation Human Middle Aged: 45-64 years Female Male ab: Early detection of asymptomatic left ventricular systolic dysfunction (LVSD) is beneficial in managing heart failure. Recent studies have cast doubt on the usefulness of cardiac output as an indicator of LVSD. In impedance cardiography (ICG), the dZ/dt waveform has a systolic wave called the E wave. This study looked at measurements of the amplitude and area of the E wave compared with ICG-derived cardiac output, stroke volume, cardiac index, and stroke index as methods of assessing LVSD. ICG data were obtained from patients (n=26) admitted to a coronary care unit. Clinical LVSD severity was stratified into 4 groups (none, mild, moderate, and severe) based on echocardiography data and standard clinical assessment by a cardiologist blinded to ICG data. Statistical analysis showed that the E wave amplitude and area were better indicators of the level of LVSD than cardiac output, stroke volume, cardiac index, or stroke index. ICG waveform analysis has potential as a simple point-of-care test for detecting LVSD in asymptomatic patients at high risk for developing heart failure and for monitoring LVSD in patients being treated for heart failure. (Prog Cardiovasc Nurs. 2007;22:145-151). pubtype: Academic Journal doctype: pictorial research tables/charts tracings Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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