JACC. Cardiovascular imaging
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JACC Cardiovasc Imaging · Oct 2013
Radiolabeled WBC scintigraphy in the diagnostic workup of patients with suspected device-related infections.
The aim of this study was to investigate the diagnostic performance of (99m)Tc-hexamethypropylene amine oxime labeled autologous white blood cell ((99m)Tc-HMPAO-WBC) scintigraphy in patients with suspected infections associated with cardiovascular implantable electronic devices (CIEDs). ⋯ (99m)Tc-HMPAO-WBC scintigraphy enabled the confirmation of the presence of CIED-associated infection, definition of the extent of device involvement, and detection of associated complications. Moreover, (99m)Tc-HMPAO-WBC scintigraphy reliably excluded device-associated infection during a febrile episode and sepsis, with 95% negative predictive value.
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JACC Cardiovasc Imaging · Aug 2013
Multicenter Study Comparative Study Observational StudyNon-fibroatheroma lesion phenotype and long-term clinical outcomes: a substudy analysis from the PROSPECT study.
The purpose of this study was to determine the clinical impact of non-fibroatheroma lesion phenotype in patients presenting with an acute coronary syndrome (ACS). ⋯ An Imaging Study in Patients With Unstable Atherosclerotic Lesions; NCT00180466).
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JACC Cardiovasc Imaging · Aug 2013
Multicenter StudyStrain echocardiography improves risk prediction of ventricular arrhythmias after myocardial infarction.
The aim of this study was to test the hypothesis that strain echocardiography might improve arrhythmic risk stratification in patients after myocardial infarction (MI). ⋯ Mechanical dispersion by strain echocardiography predicted arrhythmic events independently of LVEF in this prospective, multicenter study of patients after MI. A combination of mechanical dispersion and global strain may improve the selection of patients after MI for implantable cardioverter-defibrillator therapy, particularly in patients with LVEFs >35% who did not fulfill current implantable cardioverter-defibrillator indications.
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JACC Cardiovasc Imaging · Jul 2013
Randomized Controlled TrialStress CMR reduces revascularization, hospital readmission, and recurrent cardiac testing in intermediate-risk patients with acute chest pain.
The aim of this study was to determine the effect of stress cardiac magnetic resonance (CMR) imaging in an observation unit (OU) on revascularization, hospital readmission, and recurrent cardiac testing in intermediate-risk patients with possible acute coronary syndromes (ACS). ⋯ In this single-center trial, management of intermediate-risk patients with possible ACS in an OU with stress CMR reduced coronary artery revascularization, hospital readmissions, and recurrent cardiac testing, without an increase in post-discharge ACS at 90 days. (Randomized Investigation of Chest Pain Diagnostic Strategies; NCT01035047).
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JACC Cardiovasc Imaging · Jun 2013
Comparative StudyA long-term prognostic value of CT angiography and exercise ECG in patients with suspected CAD.
The aim of the study was to perform a comparison of the prognostic performance of computed tomography coronary angiography (CTA) and exercise electrocardiography (ex-ECG) in patients with suspected coronary artery disease (CAD). ⋯ CTA may have a higher prognostic value compared with ex-ECG in patients with suspected CAD, mainly in those with a low to intermediate pre-test likelihood of CAD.