Clinical cardiology
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Clinical cardiology · Aug 2009
Electrocardiographic abnormalities in young athletes with mitral valve prolapse.
Mitral valve prolapse (MVP) is the most common primary valvular abnormality in a young population. In some individuals, MVP is silent or associated with palpitations, dizziness, chest pain, and abnormal electrocardiogram (ECG) repolarization with or without ventricular arrhythmias. ⋯ Young athletes with MVP are often predisposed to electrocardiographic abnormalities of ventricular repolarization, which requires annual cardiologic evaluation.
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Clinical cardiology · Jul 2009
Value of early cardiac troponin I to predict long-term adverse events after coronary artery bypass graft surgery in patients presenting with acute coronary syndromes.
High values of both preoperative and postoperative cardiac troponin I (cTnI) contribute to higher rates of short-term cardiac events following coronary artery bypass graft (CABG) surgery in patients with acute coronary syndrome (ACS). The prognostic value of very early cTnI in this context is unclear. ⋯ Early cTnI measurement after admission can predict adverse outcomes after CABG. This association extends to long-term adverse events after CABG.
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Clinical cardiology · Jul 2009
Wall motion abnormalities with low-dose dobutamine predict a high risk of cardiac death in medically treated patients with ischemic cardiomyopathy.
Severe and extensive coronary artery disease is the underlying cause of stress-induced wall motion abnormalities (SWMA) with low-dose (10 microg/kg/min) dobutamine suggesting that these abnormalities may identify those with poor outcome. ⋯ Low-dose SWMA is an independent predictor of cardiac mortality in medically treated patients with ischemic cardiomyopathy. Patients with low-dose SWMA are at equivalent risk to those with peak-dose SWMA.
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Clinical cardiology · Jul 2009
Review Meta AnalysisOmega-3 dietary supplements and the risk of cardiovascular events: a systematic review.
Epidemiologic data suggest that omega-3 fatty acids derived from fish oil reduce cardiovascular disease. The clinical benefit of dietary fish oil supplementation in preventing cardiovascular events in both high and low risk patients is unclear. ⋯ Dietary supplementation with omega-3 fatty acids should be considered in the secondary prevention of cardiovascular events.