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AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
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1 to 3 of 3 Research Studies DisplayedGadhoumi K, Do D, Badilini F
Wavelet leader multifractal analysis of heart rate variability in atrial fibrillation.
Accurate and timely detection of atrial fibrillation (AF) episodes is important in primary and secondary prevention of ischemic stroke and heart-related problems. In this work, heart rate regularity of ECG inter-beat intervals was investigated in episodes of AF and other rhythms using a wavelet leader based multifractal analysis. The investigators’ aim was to improve the detectability of AF episodes.
AHRQ-funded; HS022860.
Citation: Gadhoumi K, Do D, Badilini F .
Wavelet leader multifractal analysis of heart rate variability in atrial fibrillation.
J Electrocardiol 2018 Nov - Dec;51(6s):S83-s87. doi: 10.1016/j.jelectrocard.2018.08.030..
Keywords: Heart Disease and Health, Diagnostic Safety and Quality, Cardiovascular Conditions
Blecker S, Sontag D, Horwitz LI
Early identification of patients with acute decompensated heart failure.
The purpose of this study was to develop and test accuracies of various approaches to identify patients with acute decompensated heart failure (ADHF) with the use of data derived from the electronic health record. The authors concluded that machine learning algorithms with unstructured notes had the best performance for identification of ADHF and can improve provider efficiency for delivery of quality improvement interventions.
AHRQ-funded; HS023683.
Citation: Blecker S, Sontag D, Horwitz LI .
Early identification of patients with acute decompensated heart failure.
J Card Fail 2018 Jun;24(6):357-62. doi: 10.1016/j.cardfail.2017.08.458..
Keywords: Cardiovascular Conditions, Diagnostic Safety and Quality, Electronic Health Records (EHRs), Health Information Technology (HIT), Heart Disease and Health
Bravo PE, Bergmark BA, Vita T
Diagnostic and prognostic value of myocardial blood flow quantification as non-invasive indicator of cardiac allograft vasculopathy.
Cardiac allograft vasculopathy (CAV) is a leading cause of death in orthotopic heart transplant (OHT) survivors. Effective non-invasive screening methods are needed. The aim of this study was to investigate the added diagnostic and prognostic value of myocardial blood flow (MBF) to standard myocardial perfusion imaging (MPI) with positron emission tomography (PET) for CAV detection.
AHRQ-funded; HS022998.
Citation: Bravo PE, Bergmark BA, Vita T .
Diagnostic and prognostic value of myocardial blood flow quantification as non-invasive indicator of cardiac allograft vasculopathy.
Eur Heart J 2018 Jan 21;39(4):316-23. doi: 10.1093/eurheartj/ehx683..
Keywords: Adverse Events, Cardiovascular Conditions, Diagnostic Safety and Quality, Evidence-Based Practice, Heart Disease and Health, Imaging, Patient-Centered Outcomes Research, Surgery