Journal of the American College of Cardiology
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J. Am. Coll. Cardiol. · Feb 2008
Interventricular mechanical asynchrony in pulmonary arterial hypertension: left-to-right delay in peak shortening is related to right ventricular overload and left ventricular underfilling.
The purpose of this study was to explore in pulmonary arterial hypertension (PAH) whether the cause of interventricular asynchrony lies in onset of shortening or duration of shortening. ⋯ In PAH, the L-R delay in myocardial peak shortening is caused by lengthening of the duration of RV shortening. This L-R delay is related to LVSB, decreased LV filling, and decreased stroke volume.
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J. Am. Coll. Cardiol. · Feb 2008
Randomized Controlled Trial Multicenter StudyAssociation of impaired thrombolysis in myocardial infarction myocardial perfusion grade with ventricular tachycardia and ventricular fibrillation following fibrinolytic therapy for ST-segment elevation myocardial infarction.
The goal of this analysis was to evaluate the association of impaired Thrombolysis In Myocardial Infarction myocardial perfusion grade (TMPG) with sustained ventricular tachycardia (VT) or ventricular fibrillation (VF). ⋯ Despite restoration of normal epicardial flow or a left ventricular ejection fraction >or=30%, impaired myocardial perfusion on angiography 3.5 days after fibrinolytic administration for STEMI is associated with an increased incidence of VT/VF.
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J. Am. Coll. Cardiol. · Jan 2008
Impact of impaired fasting glucose on cardiovascular disease: the Framingham Heart Study.
We sought to determine whether impaired fasting glucose (IFG) predicts cardiovascular disease (CVD) events. ⋯ In women, both IFG definitions were associated with increased CHD risk, whereas neither IFG definition identified men at increased short-term risk for CHD or CVD. The finding that women with FPG 110 to 125 mg/dl had similar CHD risk compared with women with diabetes suggests that CHD risk in women may be elevated at a lower glucose level than for men.
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J. Am. Coll. Cardiol. · Jan 2008
Multicenter StudyShort- and long-term prognosis of syncope, risk factors, and role of hospital admission: results from the STePS (Short-Term Prognosis of Syncope) study.
We sought to assess short- and long-term prognosis of syncope and associated risk factors. ⋯ Risk factors for short- and long-term adverse outcomes after syncope differed. Hospital admission favorably influenced syncope short term prognosis. Instead, 1-year mortality was unaffected by hospital admission and related to comorbidity.