Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography
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J Am Soc Echocardiogr · Jul 2006
Controlled Clinical TrialSevere tricuspid regurgitation shows significant impact in the relationship among peak systolic tricuspid annular velocity, tricuspid annular plane systolic excursion, and right ventricular ejection fraction.
Peak systolic mitral annular velocities correlate with left ventricular ejection fraction (EF) regardless of mitral regurgitation severity. Peak systolic tricuspid annular velocity (RV-Sm) and tricuspid annular plane systolic excursion (TAPSE) are used to assess right ventricular (RV) EF (RVEF). We investigated whether tricuspid regurgitation (TR) affects the relationship among RV-Sm, TAPSE, and RVEF. ⋯ Severe TR has a significant impact on the relationship between RV-Sm and RVEF and between TAPSE and RVEF. TAPSE and RV-Sm in patients with severe TR show poor correlation to RVEF. When applying Doppler tissue method or TAPSE to assess RV function, severe TR is a significantly confounding factor.
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J Am Soc Echocardiogr · Jun 2006
Randomized Controlled TrialGlucose-insulin-potassium echocardiography detects improved segmental myocardial function and viable tissue shortly after acute myocardial infarction.
Previous studies showed that glucose-insulin-potassium (GIK) increases cardiac output in patients after cardiac surgery and improves segmental myocardial wall motion. We hypothesized that GIK improves regional wall motion, detects contractile reserve, and predicts functional recovery at follow-up to a similar extent as low-dose dobutamine (LDD) in patients with recent myocardial infarction. Forty-one patients underwent LDD and GIK echocardiography. ⋯ Overall agreement between GIK and LDD echocardiography to detect contractile reserve (improvement of segmental function by >or= 1 point) was 93% with a kappa value of 0.88. Sensitivity, specificity, and positive and negative predictive values of GIK echocardiography to predict functional recovery at follow-up (mean time to follow-up, 13 months) were 74%, 84%, 85%, and 72% respectively, and values were similar to LDD echocardiography. Thus, GIK infusion improves regional left ventricular function and allows the detection of myocardial viability to a similar extent as LDD in patients shortly after infarction.
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J Am Soc Echocardiogr · Jun 2006
Controlled Clinical TrialLeft ventricular filling hemodynamics in patients with pulmonary edema and preserved versus reduced left ventricular ejection fraction: a prospective Doppler echocardiographic study.
Objective evidence of elevated left ventricular (LV) filling pressures is infrequently demonstrated in clinical practice in patients with heart failure (HF) and preserved LV ejection fraction (LVEF) and the clinical diagnosis of HF is commonly questionable in these patients. The objective of this study was to examine whether elevated LV filling pressures can be demonstrated noninvasively in consecutive patients with HF and preserved (vs reduced) LVEF. ⋯ Elevated LV filling pressures are frequently evident by Doppler echocardiography in patients with HF and preserved or reduced LVEF. Thus, Doppler echocardiography can provide objective noninvasive evidence of abnormal LV filling in a large proportion of patients with HF and preserved LVEF.
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J Am Soc Echocardiogr · Jun 2006
Case ReportsStent graft in treatment of penetrating thoracic aortic ulcer.
A 75-year-old woman presented with shortness of breath. Computed tomography pulmonary angiogram revealed two penetrating aortic ulcers in the descending aorta. Transesophageal echocardiogram examination confirmed the diagnosis. In the operating department, a stent graft to the thoracic aorta was inserted.