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Different studies with real-life data and randomized controlled trials have shown a detection rate of paroxysmal atrial fibrillation (AF) of 10-20% in patients with cryptogenic stroke using insertable continuous cardiac monitoring for 6 months. More studies are needed, however, to identify factors which can be used to select the patients where the possibility of detecting AF with prolonged rhythm monitoring is highest, to evaluate the best duration of rhythm monitoring, to determine the optimal deﬁnition of short-term AF that warrants intervention and to evaluate whether intervention results in improved clinical outcomes.
Methods: The NOR-FIB study is a multi-centre prospective observational trial, designed to evaluate detection of AF in cryptogenic stroke and transient ischemic attack (TIA). Patients admitted with cryptogenic stroke or TIA in stroke units in the Nordic countries, aged 18-80 years are included and have the Reveal LINQ® Insertable cardiac monitor system implanted for 12 months for the purpose of AF detection. Biomarkers that may identify patients, who could derive the most clinical benefit from the detection of AF by prolonged monitoring, are being studied.
Conclusion: This NOR-FIB study will increase our knowledge regarding the occurrence of AF in patients with cryptogenic stroke and TIA that potentially can improve secondary prevention. The study will provide information on biomarkers that may be used to select cryptogenic TIA and stroke patients for long-term monitoring as well as information on the significance of short-term AF and optimal duration of cardiac rhythm monitoring.
Observational Model: Case-Only, Time Perspective: Prospective
Medtronic Reveal LINQ
Not yet recruiting
Oslo University Hospital
Published on BioPortfolio: 2016-10-19T02:38:21-0400
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Rapid, irregular atrial contractions caused by a block of electrical impulse conduction in the right atrium and a reentrant wave front traveling up the inter-atrial septum and down the right atrial free wall or vice versa. Unlike ATRIAL FIBRILLATION which is caused by abnormal impulse generation, typical atrial flutter is caused by abnormal impulse conduction. As in atrial fibrillation, patients with atrial flutter cannot effectively pump blood into the lower chambers of the heart (HEART VENTRICLES).
A cardiotonic glycoside obtained mainly from Digitalis lanata; it consists of three sugars and the aglycone DIGOXIGENIN. Digoxin has positive inotropic and negative chronotropic activity. It is used to control ventricular rate in ATRIAL FIBRILLATION and in the management of congestive heart failure with atrial fibrillation. Its use in congestive heart failure and sinus rhythm is less certain. The margin between toxic and therapeutic doses is small. (From Martindale, The Extra Pharmacopoeia, 30th ed, p666)
An anticoagulant that acts by inhibiting the synthesis of vitamin K-dependent coagulation factors. Warfarin is indicated for the prophylaxis and/or treatment of venous thrombosis and its extension, pulmonary embolism, and atrial fibrillation with embolization. It is also used as an adjunct in the prophylaxis of systemic embolism after myocardial infarction. Warfarin is also used as a rodenticide.
A type of cardiac arrhythmia with premature atrial contractions or beats caused by signals originating from ectopic atrial sites. The ectopic signals may or may not conduct to the HEART VENTRICLES. Atrial premature complexes are characterized by premature P waves on ECG which are different in configuration from the P waves generated by the normal pacemaker complex in the SINOATRIAL NODE.
Abnormal cardiac rhythm that is characterized by rapid, uncoordinated firing of electrical impulses in the upper chambers of the heart (HEART ATRIA). In such case, blood cannot be effectively pumped into the lower chambers of the heart (HEART VENTRICLES). It is caused by abnormal impulse generation.
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Stroke - Cerebrovascular Disease (CVA)
A stroke is a serious medical condition that occurs when the blood supply to part of the brain is cut off. Strokes are a medical emergency and prompt treatment is essential because the sooner a person receives treatment for a stroke, the less damage is ...