Heart rate turbulence can be detected after atrial premature beat
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چکیده
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متن کاملChange of cardiac rhythm in the rabbit after an atrial premature beat.
In the isolated right atrium of the rabbit, premature beats were elicited by electrical stimulation. When the activation front of a premature beat did not reach the sinoatrial (S-A) node soon enough to discharge the pacemaker prematurely, the pause following the premature beat was compensatory. However, when the activation front forced the pacemaker to discharge prematurely, the premature beat ...
متن کاملHeart Rate Turbulence as Risk-Predictor after Myocardial Infarction
Heart rate turbulence (HRT) is the baroreflex-mediated short-term oscillation of cardiac cycle lengths after spontaneous ventricular premature complexes. HRT is composed of a brief heart rate acceleration followed by a gradual heart rate deceleration. In high risk patients after myocardial infarction (MI) HRT is blunted or diminished. Since its first description in 1999 HRT emerged as one of th...
متن کاملRisk stratification after acute myocardial infarction by heart rate turbulence.
BACKGROUND Retrospective postinfarction studies revealed that decreased heart rate turbulence (HRT) indicates increased risk for subsequent death. This is the first prospective study to validate HRT in a large cohort of the reperfusion era. METHODS AND RESULTS One thousand four hundred fifty-five survivors of an acute myocardial infarction (age <76 years) in sinus rhythm were enrolled. HRT on...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 2002
ISSN: 0735-1097
DOI: 10.1016/s0735-1097(02)80433-8