Arrhythmias/Pacemakers
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Reviewing Pediatric Arrhythmias
Although pediatric arrhythmias are uncommon, it is essential to recognize which ones require diagnostic evaluation and therapy and which ones do not. Frequently, there are normal variations on pediatric ECGs that do not require a significant evaluation, but recognizing critical arrhythmias in pediatric patients is a must-know for providers.
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Where Are the P Waves?
The ECG in the figure was obtained from a previously healthy young woman with “palpitations.” How would one interpret this two-lead rhythm strip? Is there a conduction disorder?
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Smoking Cessation After Atrial Fibrillation Diagnosis Could Lower Dementia Risk
A cohort study of patients with atrial fibrillation (AF) in South Korea revealed patients who stopped smoking after AF diagnosis were at lower risk for developing dementia than those who continued smoking.
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A Growing Body of Evidence Supports Left Bundle Branch Pacing
Several late-breaking trials presented at the annual Scientific Sessions of the Heart Rhythm Society add to the data for left bundle branch pacing as an alternative to biventricular pacing for cardiac resynchronization therapy.
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Anticoagulation Therapy in Octogenarians with Atrial Fibrillation
In patients age 80 years and older with atrial fibrillation who were not considered for oral anticoagulants because of serious comorbidities, one-quarter of the recommended daily dose of edoxaban was superior to placebo for preventing thromboembolic events.
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Gastrointestinal Bleeding on Anticoagulants: Predicting Colorectal Cancer in Afib Patients
A large Danish registry study showed that in atrial fibrillation patients on oral anticoagulants and who experience a lower gastrointestinal bleed, the incidence of a subsequent diagnosis of colorectal cancer is significantly higher than in those without bleeding.
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How Fast Can You Recognize This Rhythm?
How might the reader interpret the two-lead rhythm strip shown in the figure? Is there AV block? If so, is this complete (i.e., third-degree) AV block?
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Gastrointestinal Bleeding on Anticoagulants: Predicting Colorectal Cancer in Afib Patients
A large Danish registry study showed that in atrial fibrillation patients on oral anticoagulants and who experience a lower gastrointestinal bleed (LGIB), the incidence of a subsequent diagnosis of colorectal cancer is significantly higher than in those without a LGIB.
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Stress as a Reversible Risk Factor in Atrial Fibrillation Management
Researchers scrutinize this recognized but poorly defined relationship.
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How Many Leads Are Abnormal?
The figure was obtained after cardiac catheterization for new chest pain. The rhythm is sinus bradycardia at ~50 beats/minute. All intervals are normal. The axis is leftward, but not enough to qualify as a hemiblock. There is no chamber enlargement.