Oct 15, 2010 Issue
Common Types of Supraventricular Tachycardia: Diagnosis and Management [Article]

The most common types of supraventricular tachycardia are caused by a reentry phenomenon producing accelerated heart rates. Symptoms may include palpitations (pulsation in the neck), chest pain, lightheadedness or dizziness, and dyspnea. It is unusual for supraventricular tachycardia to be caused by...

Nov 15, 2009 Issue
Catheter Ablation of Supraventricular Arrhythmias and Atrial Fibrilation [Article]

Supraventricular arrhythmias and atrial fibrillation are common and persistent cardiac rhythm disturbances. Catheter-based ablation is an effective therapy that has durable therapeutic end points and a low complication rate.

Apr 15, 2006 Issue
Arrhythmogenic Right Ventricular Dyplasia [Article]

Arrhythmogenic right ventricular dysplasia (ARVD) is a disorder in which normal myocardium is replaced by fibrofatty tissue. This disorder usually involves the right ventricle, but the left ventricle and septum also may be affected. Although the exact prevalence of ARVD is unknown, it is thought to ...

Jun 15, 2005 Issue
Choosing Between Warfarin (Coumadin) and Aspirin Therapy for Patients with Atrial Fibrillation [Point-of-Care Guides]

Pooled data from randomized trials show that warfarin reduces the risk of stroke from 4.5 percent to 1.4 percent per year in patients with nonvalvular atrial fibrillation and no history of stroke or transient ischemic attack (TIA).

Apr 15, 2005 Issue
Indications and Recommendations for Pacemaker Therapy [Article]

Each year, pacemaker therapy is prescribed to approximately 900,000 persons worldwide. Current pacemaker devices treat bradyarrhythmias and tachyarrhythmias and, in some cases, are combined with implantable defibrillators. In older patients, devices that maintain synchrony between atria and ventricl...

Apr 1, 2005 Issue
Medication Guide for Amiodarone [Practice Guidelines]

Feb 15, 2005 Issue
Diagnostic Approach to Palpitations [Article]

Palpitations-sensations of a rapid or irregular heartbeat-are most often caused by cardiac arrhythmias or anxiety. Most patients with arrhythmias do not complain of palpitations. However, any arrhythmia, including sinus tachycardia, atrial fibrillation, premature ventricular contractions, or ventric...

Dec 1, 2003 Issue
Amiodarone: Guidelines for Use and Monitoring [Article]

Amiodarone is a potent antiarrhythmic agent that is used to treat ventricular arrhythmias and atrial fibrillation. The drug prevents the recurrence of life-threatening ventricular arrhythmias and produces a modest reduction of sudden deaths in high-risk patients. Amiodarone is more effective than so...

Aug 1, 2003 Issue
Sudden Arrhythmia Death Syndrome: Importance of the Long QT Syndrome [Article]

In approximately 5 percent of sudden cardiac deaths, no demonstrable anatomic abnormality is found. Some cases are caused by sudden arrhythmia death syndrome. A prolonged QT interval is a common thread among the various entities associated with sudden arrhythmia death syndrome. A number of drugs are...

Apr 15, 2003 Issue
Diagnosis and Treatment of Sick Sinus Syndrome [Article]

Sick sinus syndrome comprises a variety of conditions involving sinus node dysfunction and commonly affects elderly persons. While the syndrome can have many causes, it usually is idiopathic. Patients may experience syncope, pre-syncope, palpitations, or dizziness; however, they often are asymptomat...

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