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The aim of the study is the comparison of two different leads in their capabilities to detect episodes and duration of paroxysmal atrial fibrillation (AF) and atrial tachyarrhythmia (AT), and the rejection of far field sensing of the far field R-wave (FFRW).
The aim of the study is the comparison of two different leads in their capabilities to detect episodes and duration of paroxysmal AF and AT and the rejection of far field sensing of the far field R-wave (FFRW). The study aims to evaluate the accuracy of the detection of atrial tachyarrhythmias (ATAs). An improved detection can potentially increase the accuracy of clinical treatment decisions, based on device derived data.
Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject), Primary Purpose: Treatment
Sick Sinus Syndrome
Not yet recruiting
St. Jude Medical
Published on BioPortfolio: 2014-08-27T03:15:41-0400
The purpose of this study is to determine which of 4 lead positions is most effective for pacemaker patients with Sick Sinus Syndrome in order to avoid development of atrial fibrillation.
The purpose of this study is to determine the incidence of atrial fibrillation and heart failure in patients with pacemaker therapy with different pacing modes (AAI, DDD, and a novel algor...
This study evaluates the acute effects of heart rate (HR) change on central hemodynamic parameters noninvasively.
Hypothesis Treatment with rate adaptive single chamber atrial pacing (AAIR) reduces the risk of death compared with rate adaptive dual chamber pacing (DDDR) in patients with sick sinus syn...
1. Background - Pacemaker treatment gives asynchronous activation of the heart that often results in decreased heart function and clinical heart failure. New pacemaker types that...
Sick sinus syndrome (SSS) is a dysfunction of sinoatrial node resulting in symptomatic bradycardia or sinus pauses causing decreased cardiac output with cerebral hypoperfusion and usually presents as ...
The pacemaker implantation VDD is considered simpler, faster, less expensive and causes fewer complications compared to DDD. However, the VDD pacemaker has not been widely used in many centers, perhap...
We describe a 17-year-old female who presented with 3 weeks of abdominal pain, exercise intolerance, and an episode of altered mental status found to have marked first-degree atrioventricular block. ...
Despite absence of thyroid disease, patients with non-thyroidal illness frequently have changes in serum thyroid hormone measurements that may suggest thyroid dysfunction. These abnormalities include ...
Neuromyelitis optica is a rare, severe inflammatory demyelinating disease of the central nervous system, previously described as affecting only the optic nerve and spinal cord. Since the discovery of ...
A condition caused by dysfunctions related to the SINOATRIAL NODE including impulse generation (CARDIAC SINUS ARREST) and impulse conduction (SINOATRIAL EXIT BLOCK). It is characterized by persistent BRADYCARDIA, chronic ATRIAL FIBRILLATION, and failure to resume sinus rhythm following CARDIOVERSION. This syndrome can be congenital or acquired, particularly after surgical correction for heart defects.
Sampling of blood levels of the adrenocorticotropic hormone (ACTH) by withdrawal of blood from the inferior petrosal sinus. The inferior petrosal sinus arises from the cavernous sinus and runs to the internal jugular vein. Sampling of blood at this level is a valuable tool in the differential diagnosis of Cushing disease, Cushing syndrome, and other adrenocortical diseases.
An absence from work permitted because of illness or the number of days per year for which an employer agrees to pay employees who are sick. (Webster's New Collegiate Dictionary, 1981)
Air-filled spaces located within the bones around the NASAL CAVITY. They are extensions of the nasal cavity and lined by the ciliated NASAL MUCOSA. Each sinus is named for the cranial bone in which it is located, such as the ETHMOID SINUS; the FRONTAL SINUS; the MAXILLARY SINUS; and the SPHENOID SINUS.
An idiopathic syndrome characterized by the formation of granulation tissue in the anterior cavernous sinus or superior orbital fissure, producing a painful ophthalmoplegia. (Adams et al., Principles of Neurology, 6th ed, p271)