Journal of the American College of Cardiology
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J. Am. Coll. Cardiol. · Oct 2007
Practice GuidelineACC/AHA 2007 Guidelines on Perioperative Cardiovascular Evaluation and Care for Noncardiac Surgery: Executive Summary: A Report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Writing Committee to Revise the 2002 Guidelines on Perioperative Cardiovascular Evaluation for Noncardiac Surgery) Developed in Collaboration With the American Society of Echocardiography, American Society of Nuclear Cardiology, Heart Rhythm Society, Society of Cardiovascular Anesthesiologists, Society for Cardiovascular Angiography and Interventions, Society for Vascular Medicine and Biology, and Society for Vascular Surgery.
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J. Am. Coll. Cardiol. · Oct 2007
Randomized Controlled Trial Multicenter StudyThe effects of KW-3902, an adenosine A1-receptor antagonist,on diuresis and renal function in patients with acute decompensated heart failure and renal impairment or diuretic resistance.
This study sought to evaluate the dose-dependent effects of adenosine A1-receptor blockade on diuresis and renal function in patients with acute decompensated heart failure (ADHF) and renal impairment or diuretic resistance. ⋯ In patients with ADHF and volume overload, KW-3902, an adenosine A1-receptor antagonist, enhances the response to loop diuretics and may have a renal protective effect.
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J. Am. Coll. Cardiol. · Oct 2007
Impact of arterial load and loading sequence on left ventricular tissue velocities in humans.
The aim of this study was to examine the relationship between individual components of left ventricular (LV) afterload and tissue Doppler echocardiography (TDE) velocities in humans. ⋯ Diastolic and systolic tissue velocities vary inversely with arterial afterload, with late-systolic load having the greatest influence on E'. These findings may partly explain the decrease in early relaxation velocity noted with aging, hypertension, and patients with heart failure. Strategies to reduce afterload, vascular stiffening, and wave reflections may prove useful to enhance early diastolic relaxation.
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J. Am. Coll. Cardiol. · Oct 2007
Noninvasive central venous pressure measurement by controlled compression sonography at the forearm.
We sought to validate a new noninvasive technique to determine central venous pressure (CVP) using high-resolution compression sonography. ⋯ Controlled-compression sonography is a valuable tool for measuring venous pressure in peripheral veins and allows reliable indirect assessment of CVP without intravenous catheterization.