نتایج جستجو برای: altitude pulmonary hypertension
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BURTON, R. R., E. L. BESCH, AND A. H. SMITH. Efect of chronic hypoxia on the pulmonary arterial blood pressure of the chicken. Am. J. Physiol. 214(6): 1438-1442. 1968.-Single-comb White Leghorn chickens hatched and living in a high-altitude environment of 12,500-ft elevation, had pulmonary arterial blood pressures approximately twice as great as found in chickens at sea level. The pulmonary art...
AIMS To study the nitric oxide (NO) and carbon monoxide roles in the regulation of the pulmonary circulation in lowland and highland newborn sheep and llamas. METHODS AND RESULTS We used neonatal sheep (Ovis aries) and llamas (Lama glama) whose gestation and delivery took place at low (580 m) or high (3600 m) altitude. In vivo, we measured the cardiopulmonary function basally and with a NO sy...
The Fawn-Hooded rat (FHR) is a genetic strain that has been extensively studied as a model of primary pulmonary hypertension in adult rats. Based on our recent observations that alveolar number and pulmonary arterial density are reduced in FHRs raised at Denver's altitude, we hypothesized that early abnormalities in pulmonary vascular development contribute to the progression of pulmonary hyper...
TO THE EDITOR: In their randomized trial, Maggiorini and colleagues (1) report their impressive outcome that both tadalafil and dexamethasone may reduce the incidence of high-altitude pulmonary edema. They used a dosage of 10 mg twice daily for tadalafil or 8 mg twice daily for dexamethasone from the morning of the day before ascent until the end of the study. We are concerned about the dose ad...
Pulmonary hypertension syndrome (PHS), commonly called ascites, is a costly metabolic disease occurring in rapid-growing chickens. Research has shown that dietary sources of energy (KHAJALI and FAHIMI, 2010) and protein (IZADINIA et al., 2010) have significant effects on pulmonary hypertensive response in broiler chickens. It has been suggested that rapid-growing broilers may be in the status o...
Introduction Chronic mountain sickness (CMS) affects people who are native or long time residents of high altitude. It is characterized by an excessive erythrocytosis for the altitude of residence, severe hypoxemia and in many cases, particularly in severe CMS, high altitude pulmonary hypertension (HAPH). CMS usually begins insidiously in adult life associated probably to aging; the clinical pi...
Report of Pulmonary hypertension in the Arab country is limited. We carried out a retrospective chart review of all referred patients to pulmonary clinic with documented Pulmonary Hypertension based on cardiac catheterization and or Echocardiogram during 2 years period (March 2008 to February 2010). Our aim is to identify the different causes of Pulmonary Hypertension and treatment modalities i...
the prevalence of the disease (pretest probability) in the study population. Current data report the presence of Ex-PHtn in COPD, heart transplantation, susceptibility to high-altitude pulmonary edema, congenital heart disease, thromboembolic pulmonary hypertension, scleroderma, and relatives of patients with pulmonary arterial hypertension. However, the actual prevalence and clinical value (ea...
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