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284 Possible Causes for Sinus Bradycardia, Supraventricular Tachycardia

  • Sick Sinus Syndrome

    Types of sick sinus syndrome Sinus bradycardia A normal heart rate is considered to be from 60 to 100 beats per minute.[] Abstract Exercise seldom provokes tachycardia in patients with paroxysmal supraventricular tachycardia (PSVT).[] Types of tachycardias include atrial fibrillation, atrial flutter/tachycardia, and supraventricular tachycardia bradycardia-tachycardia, which causes alternating slow and[]

  • Digitalis Toxicity

    Digitalis is a cardiac glycoside frequently used in the therapy of chronic heart failure, reentrant supraventricular tachycardia and atrial fibrillation.[] ., sinus bradycardia, atrioventricular block, nonparoxysmal atrioventricular junctional tachycardia, and ventricular tachycardia.[] Sinus bradycardia is also very common. In addition, depressed conduction is a predominant feature of digoxin toxicity.[]

  • Cardiomyopathy

    An underrecognized and reversible dilated cardiomyopathy with LV contractile dysfunction occurs secondary to prolonged periods of supraventricular or ventricular tachycardia[] […] findings may include the following: ST-T wave abnormalities and LVH (common) Axis deviation (right or left) Conduction abnormalities (P-R prolongation, bundle-branch block) Sinus[] The resting ECG is unremarkable, except for sinus bradycardia and prominent U waves in some patients.[]

  • Myocardial Infarction

    Pacing in STEMI: Recommendation Class I Temporary pacing is indicated for symptomatic bradyarrhythmias unresponsive to medical treatment. ( Level of Evidence: C ) Sinus bradycardia[] tachycardia; ventricular tachycardia, significant ST segment depression or elevation (more than 2 mm); significant ischemia on the echocardiogram (more than 1 segment).[] The pulse may be irregular because of ventricular ectopy, an accelerated idioventricular rhythm, ventricular tachycardia, atrial fibrillation or flutter, or other supraventricular[]

  • Acute Myocardial Infarction

    Electrocardiographic changes include ST segment elevation, onset of sinus tachycardia (by adrenergic discharge), malignant ventricular arrhythmias, extreme bradycardia, and[] The pulse may be irregular because of ventricular ectopy, an accelerated idioventricular rhythm, ventricular tachycardia, atrial fibrillation or flutter, or other supraventricular[] Vital signs Heart rate The patient's heart rate is often increased (tachycardia secondary to sympathoadrenal discharge).[]

  • Accidental Hypothermia

    Additional findings included atrial fibrillation, severe sinus bradycardia, and prominent J (Osborn) waves.[] Sinus bradycardia was observed in 52.5% of the patients.[] bradycardia may be physiologic in severe hypothermia (ie, appropriate to maintain sufficient oxygen delivery when hypothermia is present), and cardiac pacing is usually not[]

  • Acute Atrial Infarction

    Abstract A patient with acute right ventricular infarction who showed hyposecretion of atrial natriuretic peptide (ANP) in spite of abnormally high right atrial pressure and who died of a severe low cardiac output syndrome is reported. Right atrial infarction, which was proven at autopsy, may be responsible for[…][]

  • Verapamil

    We report nine patients in whom a beta-blocker (one patient), a non-DHP CCB (one patient), or the combination (seven patients) caused sinus arrest or severe sinus bradycardia[] BACKGROUND: Adenosine is the first-line medication in patients with paroxysmal supraventricular tachycardia.[] Cardiac disorders: bradycardic arrhythmias such as sinus bradycardia, sinus arrest with asystole, 2nd and 3rd degree AV block, bradyarrhythmia in atrial fibrillation, palpitations[]

  • Valsalva Maneuver

    Abstract Paroxysmal supraventricular tachycardia (PSVT) is a common clinical problem.[] To compare the efficacy of the Valsalva maneuver with that of carotid sinus massage (CSM) in terminating paroxysmal supraventricular tachycardia (SVT) in the ED.[] He is known to have supraventricular tachycardia (SVT) and has been in before for the same condition.[]

  • Syncope

    During her hospitalization for tapering of AEDs and 24-hour EEG monitoring, the patient developed a seizure followed by sinus bradycardia and an 18-second sinus pause, resulting[] Syncope may be caused by very fast heart rhythms — tachycardias — such as in supraventricular tachycardia (SVT) or ventricular tachycardia .[] Upon his admission, an electrocardiogram showed sinus bradycardia, and computed tomography of the neck with contrast showed a large parapharyngeal mass involving the prestyloid[]

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