American heart journal
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American heart journal · Apr 2015
Multicenter Study Comparative StudyComparison of different interdialytic intervals among hemodialysis patients on their echocardiogram-based cardiovascular parameters.
Although cardiovascular events in hemodialysis (HD) patients are the most frequent on the day after a long (2 days) interdialytic interval (IDT), it has been uncertain whether accumulation or elimination of large extracellular fluid volume, electrolyte, and/or uremic substances is the culprit for this. We sought to test our hypothesis that the long IDT alters echocardiographic parameters at rest and during exercise in stable maintenance HD patients compared with other IDTs. ⋯ In a selective Japanese outpatient population on maintenance HD, there were no differences in resting cardiovascular function measured by echocardiography at 3 different IDTs. However, exercise-induced afterload mismatch assessed by the changes in Ea, SV, SW, and SW/PVA efficiency was most pronounced in individuals after the long IDT compared with other IDTs. Our findings report potential pathophysiologic echocardiographic parameters that attempt to explain why cardiovascular events are highest on the day after the long IDT compared to other IDTs in dialysis patients.
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American heart journal · Feb 2015
Randomized Controlled Trial Multicenter StudyCardiac troponin I for prediction of clinical outcomes and cardiac function through 3-month follow-up after primary percutaneous coronary intervention for ST-segment elevation myocardial infarction.
Circulating levels of cardiac troponin I (cTnI) after ST-segment elevation myocardial infarction (STEMI) are associated with infarct size and chronic left ventricular dysfunction, but the relation to clinical end points and biochemical measures of global cardiac function remains less well defined. ⋯ Cardiac troponin I measured after primary PCI for STEMI is independently associated with clinical outcomes and cardiac function through 3-month follow-up. These results suggest that cTnI levels are a useful risk stratification tool in STEMI patients.
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American heart journal · Feb 2015
Multicenter Study Comparative StudyImproving the process of informed consent for percutaneous coronary intervention: patient outcomes from the Patient Risk Information Services Manager (ePRISM) study.
While the process of informed consent is designed to transfer knowledge of the risks and benefits of treatment and to engage patients in shared medical decision-making, this is poorly done in routine clinical care. We assessed the impact of a novel informed consent form for percutaneous coronary intervention (PCI) that is more simply written, includes images of the procedure, and embeds individualized estimates of outcomes on multiple domains of successful informed consent and shared decision-making. ⋯ A personalized consent document improved the process of informed consent and shared decision-making. Marked heterogeneity across hospitals highlights that consent documents are but one aspect of engaging patients in understanding and participating in treatment.
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American heart journal · Dec 2014
Randomized Controlled Trial Multicenter StudyDesign and rationale for the Minimizing Adverse haemorrhagic events by TRansradial access site and systemic Implementation of angioX program.
Transradial intervention (TRI) and bivalirudin infusion compared with transfemoral coronary intervention or unfractionated heparin plus glycoprotein IIb/IIIa inhibitors decrease bleeding complications in patients with acute coronary syndromes (ACS). Although bleeding is thought to be associated with worse outcomes, it remains unclear whether TRI and bivalirudin both independently lower ischemic or combined ischemic and bleeding complications in ACS patients undergoing contemporary invasive management. ⋯ The MATRIX program aims at conclusively ascertaining the role of TRI and bivalirudin infusion in the whole spectrum of ACS patients undergoing contemporary invasive management.
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American heart journal · Nov 2014
Randomized Controlled Trial Multicenter StudyEffect of alirocumab, a monoclonal antibody to PCSK9, on long-term cardiovascular outcomes following acute coronary syndromes: rationale and design of the ODYSSEY outcomes trial.
Following acute coronary syndrome (ACS), the risk for future cardiovascular events is high and is related to levels of low-density lipoprotein cholesterol (LDL-C) even within the setting of intensive statin treatment. Proprotein convertase subtilisin/kexin type 9 (PCSK9) regulates LDL receptor expression and circulating levels of LDL-C. Antibodies to PCSK9 can produce substantial and sustained reductions of LDL-C. The ODYSSEY Outcomes trial tests the hypothesis that treatment with alirocumab, a fully human monoclonal antibody to PCSK9, improves cardiovascular outcomes after ACS. ⋯ ODYSSEY Outcomes will determine whether the addition of the PCSK9 antibody alirocumab to intensive statin therapy reduces cardiovascular morbidity and mortality after ACS.