نتایج جستجو برای: nonobstructive
تعداد نتایج: 833 فیلتر نتایج به سال:
Clinical and experimental evidences of limitations of the simplified Bernoulli equation for assessing pressure difference across nonobstructive valves. Role of inertial forces. Doppler echocardiography has been validated extensively for the assessment of the magnitude and time course of the pressure difference across a stenotic valve using the so-called “simplified” Bernoulli equation: pressure...
The patient is a 70-year-old male with no other atherogenic risk factors who presented with an acute coronary syndrome (ACS) of unstable angina subsequently complicated by a non-ST elevation myocardial infarction (NSTEMI). The patient's presentation posed 3 unique features: (1) cardiac catheterization demonstrated nonobstructive 3-vessel multi-aneurysmal coronary artery disease with sluggish an...
was obtained at operation or necropsy from 22 patients, including 14 with obstructive and eight with nonobstructive ASH, and studied by both light and electron microscopy. Many hypertrophied, bizarrely shaped, and abnormally arranged cardiac muscle cells, presumably a morphologic manifestation of the genetically transmitted myocardial defect in ASH, were present in the ventricular septum of all...
RATIONALE The pathogenesis of fetal megacystis is divided into obstructive and nonobstructive. Megacystis combined with chromosomal abnormalities is rare and most of the cases are nonobstructive. PATIENT CONCERNS The fetus showed posterior urethral obstructive megacystis with features of bladder enlargement, "keyhole" feature, and thick bladder wall. DIAGNOSES Here, we present a case of fet...
Feline urolithiasis represents 15% of all cases of nonobstructive lower urinary tract disease in cats. Approximately 50% of feline uroliths are composed of struvite. Struvite urolithiasis commonly recurs, but optimal management may decrease its frequency. The pathophysiology and management of struvite urolithiasis are different in cats and dogs. This article focuses on struvite urolithiasis in ...
Two patients with ileal loop urinary diversions, studied with real-time and Doppler sonography ("duplex sonography") of the kidneys, were shown to have dilated intrarenal collecting systems. Resistive index measurements calculated from the Doppler signal correctly identified obstructive dilatation in 1 case and nonobstructive dilatation in the other.
BACKGROUND Coronary computed tomographic angiography (CCTA) is an accurate test for the identification of coronary artery disease (CAD), yet the impact of CCTA results on subsequent medical therapy and risk factors has not been widely reported. METHODS AND RESULTS We identified consecutive patients aged >18 years without prior CAD who underwent CCTA from 2004 to 2011 and had complete data on ...
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