As the name implies, an extrasystole occurs outside the regular sequence of heartbeats and is therefore an arrhythmia. PVC is a synonymous term. An extrasystole can arise supraventricularly and propagate through the heart's specialized conduction system, activating the ventricles in the normal ...
arrhythmia; a ventricular rate of 160–250 beats/min; irregularRR intervals; and a cycling of the QRS axis through 180 degrees every 5–20 beats. TdP is typically short-lived and terminates spontaneously. However, most patients experience multiple episodes of the arrhythmia, and episodes...
heartbeat,beat,pulse,pulsation- the rhythmic contraction and expansion of the arteries with each beat of the heart; "he could feel the beat of her heart" extrasystole- a premature systole resulting in a momentary cardiac arrhythmia Based on WordNet 3.0, Farlex clipart collection. © 2003-201...
We planned Holter monitoring whenever any supraventricular arrhythmia was detected or suspected with multiple rest and exercise ECGs as well as patient's complaints. In this study, 67 patients (40.1%) had ambulatory Holter monitoring during the follow-up. Time-related changes in the lateral tunnel ...
It was encountered more frequently in younger subjects; the only patient over 45 developed the arrhythmia as a complication of therapy. This incessant mechanism may explain some cases in which antiarrhythmic treatment does not control reciprocating tachycardia in the WPW syndrome, but such a mechanism...
Clinical manifestations of toxicity encompass (but are not limited to) pro-arrhythmia effects such as sinus bradycardia below 60 beats per minute and atrioventricular conduction disturbances [10], thyroid dysfunctions such as hypothyroidism and less frequently thyrotoxicosis [11], interstitial pneumonitis, ...
myocardial mechanical restitution and potentiation may partly underlie the initial two alternating beats, the first beat being the most potentiated and the second beat being the most depressed, of alternans PESP decay in the canine heart. Reprints and permissions...
and atrial arrhythmia status. According to one aspect of the present invention, the timing of the extra-systolic stimulation (i.e., the ESI) can be adjusted to occur earlier at higher HRs (when the refractory period of the heart is generally shorter than at lower heart rates). The extra-...
EP0241102 1987-10-14 A heart pacemaker. EP0436517 1991-07-10 Apparatus and method for antitachycardia pacing in dual chamber arrhythmia control system. FR2544989A1 1984-11-02 DD221372A1 1985-04-24 WO1983001389A1 1983-04-28 BIDIRECTIONAL PACEMAKERAttorney...
similar to the advances in the semiconductor field, the principles of the invention may be applied directly to a "universal" implantable device for performing an all-purpose cardiac treatment function for bradyarrhythmia, tachyarrhythmia, and congestive heart failure in their various combinational manifest...