ArticleIntensive care medicine2007
Lack of agreement between thermodilution and electrical velocimetry cardiac output measurements.
Article in Intensive care medicine, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.
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Who cites it
12 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.
- Accuracy and precision of non-invasive cardiac output monitoring by electrical cardiometry: a systematic review and meta-analysis.Journal of clinical monitoring and computing · 2020Pooled it
- Electrical cardiometry for non-invasive cardiac output monitoring: a method comparison study in patients after coronary artery bypass graft surgery.Journal of clinical monitoring and computing · 2025Article
- Noninvasive Monitoring and Potential for Patient Outcome.Journal of cardiothoracic and vascular anesthesia · 2019Review
- Accuracy, Precision, and Trending Ability of Electrical Cardiometry Cardiac Index versus Continuous Pulmonary Artery Thermodilution Method: A Prospective, Observational Study.BioMed research international · 2017Observational
- Non-Invasive Monitoring of Cardiac Output in Critical Care Medicine.Frontiers in medicine · 2017Review
- A validation study of electrical cardiometry in pregnant patients using transthoracic echocardiography as the reference standard.Journal of clinical monitoring and computing · 2016Article
- Comparison of electrical velocimetry and cardiac magnetic resonance imaging for the non-invasive determination of cardiac output.Journal of clinical monitoring and computing · 2016Article
- Hemodynamic Monitoring in the Critically Ill Patient - Current Status and Perspective.Frontiers in medicine · 2015Review
- Impedance cardiography (electrical velocimetry) and transthoracic echocardiography for non-invasive cardiac output monitoring in pediatric intensive care patients: a prospective single-center observational study.Critical care (London, England) · 2014Observational
- A comparative evaluation of electrical velocimetry and inert gas rebreathing for the non-invasive assessment of cardiac output.Clinical research in cardiology : official journal of the German Cardiac Society · 2011Article
- Year in review in Intensive Care Medicine, 2007. II. Haemodynamics, pneumonia, infections and sepsis, invasive and non-invasive mechanical ventilation, acute respiratory distress syndrome.Intensive care medicine · 2008Review
- Electrical noise endemic in a university hospital: validation of the problem.Intensive care medicine · 2007Article
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Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThe modified algorithm for the non-invasive determination of cardiac output (CO) by electrical bioimpedance-electrical velocimetry (EV)-has been reported to give reliable results in comparison with echocardiography and pulmonary arterial thermodilution (PA-TD) in patients either before or after cardiac surgery. The present study was designed to determine whether EV-CO measurements reflect intraindividual changes in CO during cardiac surgery.
designProspective, observational study.
settingOperating room (OR) and intensive care unit (ICU) of a university hospital. PATIENTS: Twenty-nine patients undergoing elective cardiac surgery.
interventionsNone. MEASUREMENTS: CO was determined simultaneously by PA-TD and EV after induction of anesthesia (t1) and 4.9+/-3.5 h after ICU admission (t2).
resultsTD-CO was 3.9+/-1.4 and 5.4+/-1.1 l/min at t1 and t2 (p < 0.0001). EV-CO was 4.3+/-1.1 and 4.9+/-1.5 l/min at t1 and t2 (p = 0.013). Bland-Altman analysis showed a bias of -0.4 l/min and 0.4 l/min and a precision of 3.2 and 3.6 l/min (34.3% and 67.4%) at t1 and t2, respectively. Analysis of the individual pre- to postoperative changes in CO with both methods revealed bidirectional changes in n = 12 patients and unidirectional changes with a difference greater than 50% and less than 50% in n = 9 and n = 8 patients, respectively.
conclusionsThe disagreement between PA-TD and EV-CO measurements after anesthesia induction and after ICU admission, as well as the fact that thoracic bioimpedance did not adequately reflect pre- to postoperative changes in CO, questions the reliability of EV-CO measurements in cardiac surgery patients and contrasts sharply with previous studies.
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