ArticleCritical care (London, England)2011
Uncalibrated pulse power analysis fails to reliably measure cardiac output in patients undergoing coronary artery bypass surgery.
Article in Critical care (London, England), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02529033 (Comparative Hemodynamic Assessment Between Lidco Rapid and Pulmonary Artery Thermodilution), which is not on this map. Cited by 13 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Comparative Hemodynamic Assessment Between Lidco Rapid and Pulmonary Artery Thermodilution
Who cites it
13 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.
- Agreement of minimally invasive pulse wave analysis with pulmonary artery and transpulmonary thermodilution cardiac output measurements in perioperative and intensive care medicine: a systematic review and meta-analysis.British journal of anaesthesia · 2026Pooled it
- Noninvasive pulse contour analysis for determination of cardiac output in patients with chronic heart failure.Clinical research in cardiology : official journal of the German Cardiac Society · 2018Trial
- Trial
- Ability of the PulseCO Algorithm to Assess Changes in Stroke Volume Induced by Changes in Vascular Tone.Acta anaesthesiologica Scandinavica · 2026Observational
- Simultaneous Evaluation of Pulse Contour Devices Using an Innovative Hemodynamic Simulation Bench.Journal of clinical medicine · 2025Article
- Reliability of bioreactance and pulse power analysis in measuring cardiac index during cytoreductive abdominal surgery with hyperthermic intraperitoneal chemotherapy (HIPEC).BMC anesthesiology · 2023Article
- A comparison of the non-invasive ultrasonic cardiac output monitor (USCOM) with the oesophageal Doppler monitor during major abdominal surgery.Journal of the Intensive Care Society · 2016Article
- Accuracy of Cardiac Output by Nine Different Pulse Contour Algorithms in Cardiac Surgery Patients: A Comparison with Transpulmonary Thermodilution.BioMed research international · 2016Article
- Predictors of the accuracy of pulse-contour cardiac index and suggestion of a calibration-index: a prospective evaluation and validation study.BMC anesthesiology · 2015Article
- Less invasive methods of advanced hemodynamic monitoring: principles, devices, and their role in the perioperative hemodynamic optimization.Perioperative medicine (London, England) · 2013Article
- Year in review 2011: Critical Care--Cardiology.Critical care (London, England) · 2012Review
- Perioperative intravascular fluid assessment and monitoring: a narrative review of established and emerging techniques.Anesthesiology research and practice · 2011Article
- Cardiac output monitoring: Technology and choice.Annals of cardiac anaesthesiaReview
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionUncalibrated arterial pulse power analysis has been recently introduced for continuous monitoring of cardiac index (CI). The aim of the present study was to compare the accuracy of arterial pulse power analysis with intermittent transpulmonary thermodilution (TPTD) before and after cardiopulmonary bypass (CPB).
methodsForty-two patients scheduled for elective coronary surgery were studied after induction of anaesthesia, before and after CPB respectively. Each patient was monitored with the pulse contour cardiac output (PiCCO) system, a central venous line and the recently introduced LiDCO monitoring system. Haemodynamic variables included measurement of CI derived by transpulmonary thermodilution (CITPTD) or CI derived by pulse power analysis (CIPP), before and after calibration (CIPPnon-cal., CIPPcal.). Percentage changes of CI (ΔCITPTD, ΔCIPPnon-cal./PPcal.) were calculated to analyse directional changes.
resultsBefore CPB there was no significant correlation between CIPPnon-cal. and CITPTD (r2 = 0.04, P = 0.08) with a percentage error (PE) of 86%. Higher mean arterial pressure (MAP) values were significantly correlated with higher CIPPnon-cal. (r2 = 0.26, P < 0.0001). After CPB, CIPPcal. revealed a significant correlation compared with CITPTD (r2 = 0.77, P < 0.0001) with PE of 28%. Changes in CIPPcal. (ΔCIPPcal.) showed a correlation with changes in CITPTD (ΔCITPTD) only after CPB (r2 = 0.52, P = 0.005).
conclusionsUncalibrated pulse power analysis was significantly influenced by MAP and was not able to reliably measure CI compared with TPTD. Calibration improved accuracy, but pulse power analysis was still not consistently interchangeable with TPTD. Only calibrated pulse power analysis was able to reliably track haemodynamic changes and trends.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.