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 287 for “"Atrial"”.
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ATRIAL COMPLEX NETWORKS IN ENDOCAVITARY RECORDINGS DURING ATRIAL FIBRILLATION
L'incidenza e la prevalenza delle malattie atriali, in particolare della fibrillazione atriale (FA), stanno raggiungendo oggi proporzioni pandemiche. Nonostante i notevoli sforzi di ricerca e i progressi compiuti nella comprensione dei meccanismi alla base della FA, la capacità di trattarla rimane …
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Mapping the Characteristics of Atrial Activation Patterns During Atrial Fibrillation
Atrial fibrillation (AF) is the most common tachyarrhythmia in the Western world. In our laboratory, mechanisms of AF have been characterized using simultaneous multisite mapping (512 recording sites) in the canine sterile pericarditis model and in AF patients. Studies of AF in the canine sterile …
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Atrial natriuretic peptide
Contains fulltext : mmubn000001_08730127x.pdf (Publisher’s version ) (Open Access)
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Left Atrial Posterior Wall Isolation in the Treatment of Atrial Fibrillation
… optimal approach for the ablation of persistent atrial fibrillation is undefined. Left atrial posterior wall isolation (LAPWI) is a promising lesion set, based on techniques for surgical AF ablation. The left atrial posterior wall can be isolated via catheter, surgical or hybrid ablation …
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Pharmacological Interventions in Atrial Fibrillation
Atrial fibrillation arises when abnormal electrical signals suddenly initiate within the atria, taking precedence over the heart's natural pacemaker, which can no longer regulate the heart's rhyth. This leads to irregular and often excessively fast contractions of the atrial heart muscle cells, …
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ATRIAL FIBRILLATION MANAGEMENT IN HISPANIC ADULTS
… </strong>Research has found atrial fibrillation (AF) to be the primary or a contributing cause of death on 183,321 death certificates, and an underlying cause of death for 26,535 Americans in 2019. Findings indicate an increased AF diagnosis in White people compared to racial …
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Population-based prediction of atrial fibrillation
Background: Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia and increases in prevalence. As AF confers increased risk of morbidity, stroke, dementia and mortality, a major objective of cardiovascular epidemiology today is the development of tools for prediction and …
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A mathematical model for atrial fibrillation
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1983.
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Exosome Prevention of Post Operative Atrial Fibrillation
… recovering from open chest surgery experience atrial fibrillation (AF) that results principally from inflammation in the pericardial space surrounding the heart. Given that post-operative AF is associated with increased mortality, effective measures to prevent AF after open-chest surgery are …
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Endogenous atrial natriuretic factor and airway control
… experiments investigating the role of endogenous atrial natriuretic factor (ANF) in the modulation of airway calibre and bronchial hyperresponsiveness in humans under normal physiological conditions. Two approaches are used. One approach examines the diurnal variation of endogenous ANF and its …
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Electric Current Flow in Frog Atrial Trabeculae
Made available in DSpace on 2014-12-14T05:40:43Z (GMT). No. of bitstreams: 1 7821010.pdf: 8936012 bytes, checksum: f1fd68206d56bf812e223f01bcfcb0b3 (MD5) Previous issue date: 1978
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Comparison of Apixaban and left atrial appendage exclusion device (Watchman) in preventing stroke and systemic embolism in atrial fibrillation patients
<p>Atrial fibrillation is a cardiac arrhythmia associated with increased risk of stroke and systemic embolism. Apixaban, an oral anticoagulant, and the Watchman, a left atrial appendage closure device, are the currently used therapeutic treatments for the prevention of stroke and systemic embolism …
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Mechanisms of Left Atrial Enlargement in Obese Individuals
… is linked to diastolic dysfunction and left atrial enlargement (LAE); however, the mechanisms responsible for LAE in obesity are unknown. Previous studies have demonstrated that LAE is directly related to diastolic dysfunction [1], though the influence of obesity on this association is …
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Expression of atrial natriuretic factor in transgenic potatoes
… the expression of the precursor molecule of rat atrial natriuretic factor, ANF-(1-126), in transgenic potatoes (Solanum tuberosum L. cultivar Iwa). Four ANF gene fusions were constructed for extracellular expression of ANF-(1-126) either by retaining the native signal peptide of ANF or replacing …
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Modeling of Spiral Waves Arising in Atrial Fibrillation
… of this study is to model spirals arising in atrial fibrillation. Spiral wave fronts, known to cardiologists as cardiac rotors, are responsible for heart arrhythmias. The modeling of the path of the spiral will ultimately assist in understanding why arrhythmias occur and how to treat them. …
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Hemodynamic and biochemical characteristics of patients with atrial fibrillation and anticoagulation of ≥65-year-old patients with atrial fibrillation in Estonia
Kodade virvendusarütmia (KVA) on sagedaseim rütmihäire maailmas, esinedes 2-4% täiskasvanud elanikest. Rütmihäire põhjustab patsiendi olulist elukvaliteedi häirumist ja suurendab kuni 5 korda ajuinsuldi riski. Teada on mitmeid selle rütmihäire riskifaktorid nagu hüpertensioon, diabeet ja uneapnoe …
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Atrial fibrillation – on its trigger mechanisms, risks and consequences
Background: Atrial fibrillation (AF) frequently impairs quality of life, but in long-term it is associated with an increased morbidity and mortality. Persistent AF may cause changes in the sinus node function, and if converted to sinus rhythm (SR), there is a substantial risk of recurrence of AF. …
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The interrelationship between central sleep apnea and atrial fibrillation
… that sleep apnea is strongly associated with atrial fibrillation, with several lines of evidence demonstrating that this relationship is bidirectional and that each condition predisposes to and/or exacerbates the other. Many studies have suggested potential pathophysiologic mechanisms …
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