Intracardiac Electrogram and Ischemia Alert
نویسندگان
چکیده
منابع مشابه
Initial clinical results using intracardiac electrogram monitoring to detect and alert patients during coronary plaque rupture and ischemia.
OBJECTIVES We report the first clinical studies of intracardiac ST-segment monitoring in ambulatory humans to alert them to significant ST-segment shifts associated with thrombotic occlusion. BACKGROUND Despite improvements in door-to-balloon times, delays in symptom-to-door times of 2 to 3 h remain. Early alerting of the presence of acute myocardial infarction could prompt patients to seek i...
متن کاملNonlinearity Characterization and Entropy Analysis of Intracardiac Atrial Electrogram Signals
The main objective of this paper is to identify evidences of nonlinear components in persistent atrial fibrillation electrograms (persAF). Firstly, an exploratory data analysis using linear approaches (autocorrelation and spectral analysis) was performed to assess the behaviour of the AF electrograms. Secondly, a nonlinear characterization using surrogate data analysis was performed with a comp...
متن کاملDouble-counting of intracardiac electrogram during biatrial pacing.
BACKGROUND Biatrial pacing has a significant problem with memory function that misinterprets normal sinus rhythm as atrial tachyarrhythmias and in addition estimation of the atrial pacing thresholds (biatrial and uniatrial pacing thresholds) is sometimes difficult because of small P waves. METHODS AND RESULTS The intracardiac electrograms recorded by a pacemaker in 10 patients (age, 66.7+/-10...
متن کاملThe intracardiac electrogram as an aid in cardiac catheterization.
Electrocardiograms have been recorded by unipolar leads from the great veins and cavities of the right heart during cardiac catheterization in 30 of 130 cases of congenital and rheumatic heart disease. These intracardiac electrograms have given information that has proved useful in diagnosis. Further, continuous monitoring on an oscilloscope of these tracings, rather than of records from surfac...
متن کاملIntracardiac electrogram transformation. Morphometric implications for implantable devices.
Over 75,000 antitachycardia devices (ATDs) have been implanted since initial Food and Drug Adrninistra-tion approval in 1985 and have yielded dramatic survival rates. These devices, although life-saving, rely principally on simple measures of the heart rate for arrhythmia detection. The ATDs are highly sensitive, but their low specificity of diagnosis results in episodes of inappropriate therap...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 2012
ISSN: 0735-1097
DOI: 10.1016/j.jacc.2011.02.084