Clinical cardiology
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Clinical cardiology · Dec 2009
Multicenter StudyPrehospital electrocardiograms (ECGs) do not improve the process of emergency department care in hospitals with higher usage of ECGs in non-ST-segment elevation myocardial infarction patients.
This article will describe the impact of prehospital electrocardiogram (ECG) use on emergency department (ED) processes of care for non-ST-segment elevation myocardial infarction (NSTEMI) patients and assess the characteristics associated with prehospital ECG use. ⋯ Use of prehospital ECG in NSTEMI patients is uncommon. In contrast to its impact on reperfusion times in ST-segment elevation myocardial infarction (STEMI) patients, its use does not appear to be associated with an improvement in ED processes of care at the hospital level.
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Clinical cardiology · Dec 2009
Patients with metabolic syndrome have prolonged corrected QT interval (QTc).
Prolongation of corrected QT interval (QTc) increases morbidity and mortality and QTc has been found to be longer in patients with diabetes mellitus than in healthy controls. It is still inconclusive whether the metabolic syndrome results in QTc prolongation. ⋯ Metabolic syndrome is a risk factor for prolonged QTc, which may further increase cardiovascular morbidity and mortality in the subjects with metabolic syndrome.
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Clinical cardiology · Dec 2009
Serum N-terminal-pro-brain natriuretic peptide level and its clinical implications in patients with atrial fibrillation.
Brain natriuretic peptide (BNP) is increasingly being used for screening and monitoring of congestive heart failure. However, the role of BNP in patients with atrial fibrillation (AF) and normal left ventricular function has not been determined. This study investigates serum N-terminal pro-brain natriuretic peptide (NT-proBNP) level and its clinical implications in patients with AF. ⋯ Patients with AF were associated with increased serum NT-proBNP levels. Examining the change of serum NT-proBNP levels is helpful to evaluate the cardiac function in patients with AF.
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Clinical cardiology · Nov 2009
Randomized Controlled TrialDo media players cause interference with pacemakers?
Electrical devices generate electromagnetic fields that may interfere with pacemakers. Media players cause telemetry interference with pacemakers, but it is not known whether they cause direct interference with pacemakers. The purpose of this study was to examine the interaction between pacemakers and 3 different media players. ⋯ Media players cause telemetry interference with pacemakers, but they do not directly interfere with pacemaker function.
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Clinical cardiology · Nov 2009
Usefulness of brain natriuretic peptide level at implant in predicting mortality in patients with advanced but stable heart failure receiving cardiac resynchronization therapy.
Brain natriuretic peptide (BNP) level has emerged as a predictor of death and hospital readmission in patients with heart failure (HF). The value of baseline BNP assessment in advanced HF patients receiving cardiac resynchronization defibrillator therapy (CRT-D) has not been firmly established. ⋯ Baseline BNP independently predicted mortality and HF hospitalization in a predominantly older white male population of advanced HF patients receiving CRT-D. Elevated BNP levels may identify a vulnerable HF population with a particularly poor prognosis despite CRT-D.