Sinus tachycardia A normal increase in heart rate greater than 100 bpm is considered sinus tachycardia. You may experience sinus tachycardia during exercise, or if you feel anxious or scared. While your heart may be beating faster than at rest in sinus tachycardia, it is not interfering with ot...
His left ventricular ejection fraction was 40%. The electrocardiogram (ECG) during palpitations revealed a narrow QRS tachycardia (Figure 1, right half) with QRS morphology similar in several leads to that during sinus rhythm (Figure 1, left half). The tachycardia was incessant and hemodynamically...
However, the tachycardia was classified by the device asVT (V>A) obviously due to postventricular atrial blanking. Themorphology discrimination algorithm indicated a resemblance below the match threshold of the stored EGM template in sinus rhythm and the complexes in the VT-2 zone are therefore ...
, many cardiologists are deciding against combination drug therapy, opting instead to prescribe either anti-arrhythmia drugs or rate-managing drugs. Some patients, however, do not show improvement with a single style of drug therapy; these people might benefit fromcardiac ablationto cure arrhythmia....
An implantable device for diagnosing and distinguishing supraventricular and ventricular tachycardias includes electrodes for stimulating parasympathetic nerves of the atrioventricular and/or sinus node; electrodes for stimulating the at... P Schauerte - US 被引量: 229发表: 2003年 Cardiac Resynchronization ...
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In this scenario, is Rica experiencing ventricular arrhythmia or bradyarrhythmia? Support your answer. At this stage, would the doctor initiate treatment with an antiarrhythmic drug to maintain normal sinus rhythm? If so, what generic drug would the doctor most likely prescribe? Sample Answer Pro...
Ventricular repolarization is represented by the ___ wave of the EKG. (a) ST-segment (b) T wave (c) P wave (d) QRS wave. Electrical activity of the Heart: The heart has an internal system which initiates impulses and conducts them through the...
The usual mechanism of sudden death in various forms of heart disease is thought to be ventricular arrhythmia.1-3However, antiarrhythmic drugs have not been shown conclusively to prevent sudden death, except in the case of β blockers, which improve survival in patients with heart failure and af...
(g) Second-degree AVB; (h) ventricular extrasystoles; (i) ventricular tachycardia. (j) Relative percentages of SAN or AVN dysfunctions preceding a period of ventricular tachycardia in n ¼ 5 mutant mice (SP, sinus pauses; ESV, ventricular extrasystoles). (k) ECG recorded from Mut/GIRK4...