extrasystole

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a premature systole resulting in a momentary cardiac arrhythmia

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References in periodicals archive ?
KEY WORDS: Anxiety, Burnout, Critical Care, Extrasystoles, Nursing.
2+] load which is responsible for the generation of delayed after depolarizations (DADs), which, if sufficiently large, may achieve threshold and generate spontaneous action potentials, leading to extrasystoles and ventricular arrhythmias.
Fear associated with the awareness of severe disease is often exacerbated by the awareness of cardiac dysfunction (tachycardia, extrasystoles, dysrhythmia), by precordial pain, breathing difficulties or feelings of physical exhaustion.
Sinus tachycardia, atrial ectopic beats, ST changes, ventricular extrasystoles, sinus arrhythmia, 1deg AV block, left bundle branch block, right bundle branch block were found in cited cases.
AV block and extrasystoles also may occur even within therapeutic level (Kanji & MacLean, 2012).
Perioperative factors, such as atrial extrasystoles, change in autonomic tone, electrolyte shifts, inadequate myocardial protection, b blocker withdrawal, or the response to cardiopulmonary bypass, can trigger AF in these at-risk patients14.
Unsupervised classification of ventricular extrasystoles using bounded clustering algorithms and morphology matching.
Severe sympathetic discharge is often seen during dental procedures, presenting with hypertension, tachycardia and ventricular extrasystoles.
Those reactions are accompanied by various symptoms, typical for the developed picture of a HIV-infection: problem with the breathing, rhinorrhea, obstruction of respiratory tracts, extrasystoles, gastro-intestinal disturbances leading to loose stool and diarrhea.
This includes chapters on and common arrhythmias and ectopics and extrasystoles.
Arrythmias Major Minor * Nonsustained or sustained VT of * Nonsustained or sustained VT LBBB[dagger] morphology with or RV outflow configuration, superior axis (negative or LBBB morphology with inferior indeterminate QRS in leads II, III, axis (positive QRS in leads II, aVF and positive in lead aVL) III, and a VF and negative in lead aVL) or of unknown axis * >500 ventricular extrasystoles per 24 hours (Holter) VI.
determined ECG disorder such as sinus tachycardia or bradycardia, bundle branch conduction defects, non-specific ventricular repolarization disturbances, supraventricular and ventricular extrasystoles, prolonged QT interval, low voltage of the QRS complexes in standard limb leads, atrioventricular block first-degree, and atrial fibrillation in patients with HFRS.
The other developed a Brugada ECG and frequent ventricular extrasystoles that evolved into ventricular tachycardia and repetitive ventricular arrhythmias (electrical storm) (20).