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In order to determine the presence and extent of obstructive pulmonary vascular disease in patients with congenital heart disease, magnified cineangiograms were obtained with a catheter in the pulmonary artery wedge position in 155 infants and children undergoing cardiac catheterization. The wedge angiograms (WA) were analyzed in groups according to the pulmonary hemodynamics: group A normal pu...

As described previously,lS2 this was a modification of the Lower-Shumway method? In brief, pairs of puppies were chosen on the basis of approximate match in weight, anesthetized and subjected to hypothermia of 15 to 20°C. for the recipient, and 25 to 30°C. for the donor. The excised donor heart was stored in isotonic solution at 4 to 10°C. while preparation of the recipient was completed. The r...

The acute change in pulmonary artery pressure in response to oxygen may have prognostic value for patients with chronic obstructive pulmonary disease treated with long term domiciliary oxygen. A study was carried out to elucidate the mechanism of the acute cardio-respiratory response to oxygen in such patients and to determine whether it can be quantified non-invasively. The effects of acute ox...

background: echocardiographic evaluations of the longitudinal axis of the left ventricular (lv) function have been used in the diagnosis and assessment of heart failure with normal ejection fraction (hfnef). the evaluation of the global and segmental peak systolic longitudinal strains (pslss) by two-dimensional speckle tracking echocardiography (ste) may correlate with conventional echocardiogr...

Ten patients with chronic obstructive pulmonary disease without complicating cor pulmonale were studied by right and left heart catheterization. Hemodvnamic and respiratory observations were made during a control period and during the infusion of 1 g of aminophylline. Aminophylline produced a significant reduction in mean pulmonary artery pressure from 19.7 mm Hg to 14.8 mm Hg, right ventricula...

Ten patients with chronic obstructive pulmonary disease without complicating cor pulmonale were studied by right and left heart catheterization. Hemodvnamic and respiratory observations were made during a control period and during the infusion of 1 g of aminophylline. Aminophylline produced a significant reduction in mean pulmonary artery pressure from 19.7 mm Hg to 14.8 mm Hg, right ventricula...

Angiotensin converting enzyme (ACE) was localized in rat heart by quantitative in vitro autoradiography with 125I-351A as the radioligand. The binding association constant (KA) of the radioligand was measured in membrane-rich fractions of atrium, ventricle, and lung by a radioinhibitor binding assay. A single class of high-affinity binding sites was detected in each tissue, and a significant di...

a2-year-old cachectic cross-breed gelding was admitted toveterinary teaching hospital of university of tehran followingthe onset of a marked respiratory distress, coughing and ventraledema. clinical examinations indicated harsh respiratory andexpiratory sounds as well as jugular vein distention. therespiratory and heart rates were 35/min and 60 bpm, respectively.agrade iii/iv pansystolic murmur...

A female infant with unilateral pulmonary agenesis developed congestive heart failure dominated by symptoms of obstructive disease of the airways at 3 1/2 months of age. Cardiac catheterization revealed total anomalous pulmonary venous connection to the right atrium. Despite a massive left-to-right shunt with one pulmonary artery receiving the entire right ventricular output since birth, the pa...