نتایج جستجو برای: diastolic pressure
تعداد نتایج: 424257 فیلتر نتایج به سال:
To elucidate the pathophysiology of severe right ventricular infarction (RVI), isolated RVI was produced in 15 dogs with the pericardium intact or open. After RVI in dogs with the pericardium intact, RV systolic pressure decreased by 27%, aortic pressure by 29% and cardiac output by 34%. RV transmural pressure, RV end-diastolic size and intrapericardial pressure increased, left ventricular tran...
Background: Hospitalization in the coronary care unit (CCU) is a concern for patients and their companions. Different studies have presented conflicting results about the effect of visitors on physiological parameters of patients. The purpose of this study was to determine changes in physiological parameters (systolic and diastolic blood pressure and heart rate) due to presence of visitors at t...
OBJECTIVE To investigate the relation between mortality and treated systolic and diastolic blood pressures. DESIGN Randomised double blind placebo controlled trial. Mortality in the two treatment groups was examined in thirds of treated systolic and diastolic blood pressures. PATIENTS 339 And 352 patients allocated to placebo and active treatment, respectively. The groups were similar at ra...
Aging is often associated with increased systolic blood pressure and decreased diastolic blood pressure. Isolated systolic hypertension or an elevated systolic blood pressure without an elevated diastolic blood pressure is a known risk factor for incident heart failure in older adults. In the current study, we examined whether isolated diastolic hypotension, defined as a diastolic blood pressur...
Background: Exercise improves functional capacity by improving endothelial function and musculoskeletal aerobic metabolism, but its effects on hemodynamic control are not well known. The aim of this study was to investigate the effect of aerobic and resistance trainings on structural changes and blood pressure in patients with heart failure. Materials and methods: 76 patients aged 65 to 79 year...
OBJECTIVE To use published Hypertension Optimal Treatment (HOT) Study data to evaluate changes in cardiovascular mortality in nondiabetic hypertensive patients according to the degree of reduction in their diastolic blood pressure. METHODS In the HOT Study, 18,700 patients from various centers were allocated at random to groups having different objectives of for diastolic blood pressure: </=9...
Background: Osteoarthritis is one of the ten debilitating diseases in developing countries. This study was designed to examine the effect of Burdock root tea on lipid profile and blood pressure in patient with knee osteoarthritis (OA). Methods: This was a randomized one-way blinded 6- week clinical trial. Thirty-six patients (10 men and 26 women) aged 50-70 year-old with knee osteoarthritis ...
The increased left ventricular end-diastolic pressure associated with myocardial ischemia was studied in 19 patients at cardiac catheterization. Single plane left ventriculograms were performed using high fidelity micromanometer tipped catheters before and immediately following rapid atrial pacing. Left ventricular diastolic properties were evaluated by constructing diastolic pressure-volume cu...
BACKGROUND Ischemia is characterized by an increase in intracellular calcium and occurrence of diastolic dysfunction. We investigated whether the myocyte calcium level is an important direct determinant of ischemic diastolic dysfunction. METHODS AND RESULTS We exposed isolated, perfused isovolumic (balloon in left ventricle) rat and rabbit hearts to low-flow ischemia and increased extracellul...
Symptoms of congestive heart failure frequently reflect abnormalities in both systolic and diastolic performance. While much work has been reported regarding the mechanisms by which positive inotropic and vasodilator therapy affect systolic performance, little is known about their effect on diastolic function. In 12 patients with diffuse congestive cardiomyopathy micromanometer left ventricular...
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