نتایج جستجو برای: Pulmonary Artery Hypertension
تعداد نتایج: 527701 فیلتر نتایج به سال:
Background and purpose: Pulmonary hypertension (PH) has been reported in hemodialysis patients, but there are scant studies about its prevalence and mechanisms. The aim of this study was to determine the prevalence of pulmonary hypertension in hemodialysis patients and to study some of its possible etiologic factors. Materials and methods: Ïn this cross-sectional study, the prevalence of p...
While pulmonary thromboembolism is common, thromboembolic pulmonary hypertension is very rare. The present case is a 35 year old woman with chronic thromboembolic pulmonary hypertension, who presented with severe dyspnea and leg edema, following an earlier thrombotic event of 10 years earlier, after her her second childbearing. She also had a history of the first childbearing complicated with c...
Background: Vitamin D (Vit D) is linked to various conditions including musculoskeletal, metabolic and cardiopulmonary diseases. However, it is not clear whether correction of vit D deficiency exerts any beneficial effect in patients with pulmonary hypertension. Methods: This study was a prospective uncontrolled longitudinal study. Patients with pulmonary hypertension and vit D d...
conclusions based on the results of this study, we suggest the use of a novel “time from the beginning of isovolumetric contraction to the peak of the s wave” (ttp) parameter in the tdi of the base of the rv free wall to predict ph with acceptable accuracy in comparison with rhc. results in our study, the ttp showed a significant inverse relationship with the pap. based on our results, a ttp of...
background: vitamin d (vit d) is linked to various conditions including musculoskeletal, metabolic and cardiopulmonary diseases. however, it is not clear whether correction of vit d deficiency exerts any beneficial effect in patients with pulmonary hypertension. methods: this study was a prospective uncontrolled longitudinal study. patients with pulmonary hypertension and vit d deficiency wer...
Background and Objective: Pulmonary hypertension is an increase in blood pressure of the pulmonary artery which leads to right ventricular dysfunction. Therefore, the present study aimed to compare echocardiographic parameters in the study of right ventricular failure in patients with pulmonary hypertension. Materials and Methods: In the present descriptive cross-sectional study, data were col...
Objective(s): The present study was aimed to investigate the influence of thoracic epidural blockade on hypoxia-induced pulmonary hypertension in rats. Materials and Methods: Forty eight Wistar rats were randomly divided into 4 equal groups, named normoxia hypoxia hypoxia/ ropivacaine and hypoxia/saline. Animals were placed in a hypoxia chamber and instrumented with epidural catheters at the t...
background pulmonary artery hypertension is the presentation of various types of cardiovascular and systematic diseases. there are different kinds of noninvasive methods to determine right ventricular function, pulmonary artery pressure, and effect of pulmonary hypertension on right ventricular function. these methods include the tissue doppler imaging (tdi) of the tricuspid annulus and the lon...
Introduction: Echocardiography is usually the first modalities of imaging to evaluate the structural and functional disorders of the heart and great vessels, and colored flow and Doppler images are able to perform hemodynamic and bloodstream evaluations. The goal of this study was the investigation of right ventricular function using echocardiography in patients with pulmonary artery hypertensi...
objective(s): the present study was aimed to investigate the influence of thoracic epidural blockade on hypoxia-induced pulmonary hypertension in rats. materials and methods: forty eight wistar rats were randomly divided into 4 equal groups, named normoxia hypoxia hypoxia/ ropivacaine and hypoxia/saline. animals were placed in a hypoxia chamber and instrumented with epidural catheters at the th...
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