Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 35 for “"Right heart"”.
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Echocardiographic Assessment of the Canine Right Heart: Reference Intervals and Repeatability
… intervals for measurements of the normal canine right heart. Phase 2) Describe the repeatability of normal right heart echocardiographic measurements. Phase 3) Describe the repeatability of right heart echocardiographic measurements which predict pulmonary artery pressure. Materials and Methods: …
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Assessing Risk For Right Heart Failure After Left Ventricular Assist Device Implantation
… negatively impacted by the diagnosis of Advanced Heart Failure. Financial burden, repeated hospitalizations, and declining quality of life account for poor outcomes. Implantation of a left ventricular assist device (LVAD) has offered the promise of improved financial, clinical, and functional …
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Risk Factors, Mechanisms and Therapeuthic for Right Heart Failure Associated with Pulmonary Hypertension
Right ventricular function (RV) is one of the most important predictors of prognosis in many cardiovascular disease states. Despite the significance of RV function to survival, there are no therapies that directly nor selectively improve RV function. As well, the basis for RV failure is poorly …
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Reference intervals for the echocardiographic measurements of the right heart in African school children and adolescents
… modality for the diagnosis and management of right ventricular (RV) failure.[2-5] Besides aiding in the diagnosis and management of conditions such as arrhythmogenic right ventricular cardiomyopathy, pulmonary embolism, and RV infarction, the echocardiographic evaluation of the right heart …
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Leveraging Right and Left Ventricular Coupling for Optimization of Mechanical Circulatory Support
… mechanical support risks decompensation if the heart and lung cannot tolerate these changes. One particularly concerning consequence of altered coupling is that upwards of 40% of patients with left-sided mechanical support face ensuing right heart failure, which requires urgent action and often …
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Ultrasonographic circumferential strain pattern analysis of the cardiac septal wall in rodents with experimental pulmonary hypertension.
… but difficulties in transthoracic imaging of the right heart are a barrier to its use in diagnosis of PAH. Segmental strain pattern analysis of the intraventricular septum circumvents this problem while still providing insight into right ventricular (RV) function. In this paper, the authors …
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Ultrasonographic circumferential strain pattern analysis of the cardiac septal wall in rodents with experimental pulmonary hypertension.
… but difficulties in transthoracic imaging of the right heart are a barrier to its use in diagnosis of PAH. Segmental strain pattern analysis of the intraventricular septum circumvents this problem while still providing insight into right ventricular (RV) function. In this paper, the authors …
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The Man with the Blue Boots
… or impossible can always be achieved with the right heart and attitude. The story was illustrated using various hand-sewn textiles and fabric layering. After the images were created they were then transferred and manipulated further in Adobe Photoshop.
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The Role of UNC-45 in Heart Development and Human Breast Cancer
… all cell types, whereas UNC-45B/b only exists in heart and skeletal muscles. This thesis investigated the distinct roles of UNC-45 isoforms in heart development and breast cancer progression. As a molecular chaperone, mouse UNC-45b directly bound cardiac muscle myosin II and transcription factor …
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Characteristics of cardiovascular dysfunction and pulminory hypertension in patients with sickle cell disease
… of pulmonary vascular<br/>resistance (PVR) by right heart catheterisation. CT lung scan and lung function<br/>tests were also performed in patients suspected to have PHT. Vascular<br/>endothelial function was assessed by flow-mediated forearm vasodilatation in<br/>twenty stable adolescent SCD …
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Functional lung imaging in humans using Positron Emission Tomography
… experimental data. A model of the tracer in the right heart and lungs is developed, and used to estimate physiological parameters for large to medium-sized regions of diseased lung. As regions of interest are made smaller, the amount of imaging noise in PET data increases. Consequently parameter …
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The Heart of the Rugby Football League Athlete: An Aid to Pre-Participation Cardiac Screening
… cardiac condition. The term athletes’ heart (AH) describes the physiological adaptation that occurs from chronic exposure to exercise training however, this process can mimic cardiac remodelling caused by pathological conditions such as cardiomyopathy. Transthoracic echocardiography …
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Arrhythmias in Pulmonary Hypertension
… to structural and electrical remodelling of the right heart, and are associated with adverse clinical outcomes. This study investigated the prevalence and clinical significance of conduction abnormalities and arrhythmias in idiopathic PAH (IPAH), using resting electrocardiograms (ECGs) and …
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Pulmonary hypertension in adolescents with sickle cell disease
… causing less blood to reach the lungs. The right side of the heart has to pump harder to compensate for this, which can ultimately lead to right heart failure. With vaso-occlusion being the major complication in sickle cell disease and affecting many tissues and organs like the lungs, …
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Pulmonary endarterectomy for chronic thromboembolic pulmonary hypertension in Cape Town, South Africa
… ventilation: perfusion scans, 5 (21%) underwent right heart catheterisation, and none had pulmonary angiograms. The perioperative mortality was 4/24 (17%): 1 patient (4%) had a cardiac arrest on induction of anaesthesia, 2 patients (8%) died of postoperative pulmonary haemorrhage, and 1 patient …
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Quantification of regional perfusion, shunt fraction and ventilation using positron emission tomography : a nonlinear tracer kinetics model
… model is made of a compartment representing the right heart and pulmonary vasculature through which the tracer is mixed and diluted in blood. From this compartment, blood is distributed to two compartments for each defined region of interest (ROI). One lumps all aerated alveolar units, and the …
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Development and Evaluation of Generative Adversarial Networks for Predicting Central Hemodynamics
… values (e.g pressures in the chambers of the heart and the pulmonary vessels). The current gold standard for obtaining these values is right heart catheterization, an invasive procedure that entails some level of risk for the patient. By contrast, other information routinely used in medicine, …
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Development and Resolution of Pulmonary Arterial Hypertension in RAO Horses
… where clinical parameters, pulmonary function, right heart and pulmonary artery pressures were measured on day 1, 3 and 5. After evaluating horses on day five, their environment was modified to reduce exposure to respirable debris and anti-inflammatory medication (dexamethasone) was initiated. …
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Therapeutic Targeting of BMP and TGF-β Signalling Pathways for the Resolution of Pulmonary Arterial Hypertension
… cardiovascular disorder, which leads to right heart failure and death, if left untreated. Heterozygous germline mutations in the bone morphogenetic protein receptor type II (BMPR2) have been linked with the majority (~75%) of the familial form of the disease (HPAH). Mutations in the BMPR2 …
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The prognostic value of electrocardiography to predict inpatient mortality in patients with acute pulmonary embolism: a retrospective cohort analysis
… for predetermined signs that are associated with right heart strain and higher pulmonary artery pressures, and these findings were analysed to in-hospital mortality. Results: Of the included 81 patients, 61 (75%) were female. Of the 41 (51%) patients with submassive PE and 8 (10%) with massive PE, …
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