American heart journal
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American heart journal · Feb 2014
Comparative StudyPatterns and prognosis of all components of the J-wave pattern in multiethnic athletes and ambulatory patients.
Despite recent concern about the significance of the J-wave pattern (also often referred to as early repolarization) and the importance of screening in athletes, there are limited rigorous prognostic data characterizing the 3 components of the J-wave pattern (ST elevation, J waves, and QRS slurs). We aim to assess the prevalence, patterns, and prognosis of the J-wave pattern among both stable clinical and athlete populations. ⋯ J waves, slurs, or ST elevation was not associated with increased hazard of cardiovascular death in our large multiethnic, ambulatory population. Even subsets of J-wave patterns, recently proposed to pose a risk of arrhythmic death, occurred at such a high prevalence as to negate their utility in screening.
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American heart journal · Jan 2014
Review Meta Analysis Comparative StudyComplete vs culprit-only revascularization for patients with multivessel disease undergoing primary percutaneous coronary intervention for ST-segment elevation myocardial infarction: a systematic review and meta-analysis.
Patients with ST-segment elevation myocardial infarction (STEMI) and multivessel coronary artery disease who undergo primary percutaneous coronary intervention (PCI) are most commonly treated with PCI to the culprit lesion only. Whether a strategy of complete revascularization in these patients is superior is unknown. We performed a meta-analysis comparing the benefits and risks of routine culprit-only PCI vs multivessel PCI in STEMI. ⋯ Overall, staged multivessel PCI improved short- and long-term survival and reduced repeat PCI. Still, large randomized trials are required to confirm the benefits of staged multivessel PCI in STEMI.
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American heart journal · Jan 2014
Genetic variation in the β1-adrenergic receptor is associated with the risk of atrial fibrillation after cardiac surgery.
Postoperative atrial fibrillation (PoAF) after cardiac surgery is common and associated with increased morbidity and mortality. Increased sympathetic activation after surgery contributes to PoAF, and β-blockers are the first-line recommendation for its prevention. We examined the hypothesis that common functional genetic variants in the β1-adrenoreceptor, the mediator of cardiac sympathetic activation and drug target of β-blockers, are associated with the risk for PoAF and with the protective effect of β-blockers. ⋯ The Gly389 variant in the β1-adrenoreceptor is associated with PoAF, and this association appears to be modulated by β-blocker therapy. Future studies of the association of other adrenergic pathway genes with PoAF will be of interest.
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American heart journal · Dec 2013
Multicenter Study Comparative Study Observational StudyRadial versus femoral approach comparison in percutaneous coronary intervention with intraaortic balloon pump support: the RADIAL PUMP UP registry.
The role of intraaortic balloon pump (IABP) during percutaneous coronary intervention (PCI) in high-risk acute patients remains debated. Device-related complications and the more complex patient management could explain such lack of clinical benefit. We aimed to assess the impact of transradial versus transfemoral access for PCI requiring IABP support on vascular complications and clinical outcome. ⋯ In this observational registry, high-risk patients undergoing PCI and requiring IABP support appeared to have fewer NACEs if transradial access was used instead of transfemoral, mainly due to fewer access-related bleedings. Given the inherent limitations of this retrospective work, including the inability to adjust for unknown confounders, further controlled studies are warranted to confirm or refute these findings.