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Operative therapy for cardiac arrhythmias: Setting the stage for catheter ablation

HeartRhythm

Notwithstanding many insightful observations, the electrocardiogram (ECG) arguably ignited the big bang in our understanding of cardiac arrhythmias. Using ECG recording and deductive reasoning, our teachers and predecessors classified the bradycardias and tachycardias and proposed many mechanisms, subsequently proven to be correct.

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Escitalopram-induced sinus bradycardia in coronary heart disease combined with depression: a case report and review of literature

Frontiers in Cardiovascular Medicine

Here, a rare repeated sinus bradycardia event due to escitalopram is first reported. In an 82-year-old female patient with cardiac dysfunction using digoxin, tachycardia (average heart rate of 93 beats/min) was demonstrated by electrocardiogram (ECG). No other drug changes were made during these periods.

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Abstract 4145609: The Cardiac Conundrum of Cannabis: A Case of Junctional Bradycardia Triggered by Cannabis Use

Circulation

Electrocardiogram (ECG) and telemetry revealed junctional bradycardia with heart rate in 30s and sinus pauses (5-7 seconds). He was admitted for further workup of bradycardia. His home medications included metoprolol succinate 25mg daily which was held given bradycardia. He was euvolemic on physical exam.

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Transvenous catheter ablation of a posteroseptal accessory pathway in a patient with Wolff-Parkinson-White syndrome

HeartRhythm

In a case report published in 1984 in the New England Journal of Medicine, Figure 1 was an electrocardiogram that showed sinus bradycardia with a short PR interval and prominent delta waves, with a pattern of preexcitation typical of a posteroseptal accessory pathway (PSAP).1

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Cardiomatics guide: Analyzing arrhythmias made easy

Cardiomatics

In a world where technology reigns supreme, one of the most profound tools in medicine remains the irreplaceable electrocardiogram (ECG). Sinus bradycardia – sinus rhythm below 60 bpm is a sinus bradycardia. An abnormal electrocardiogram can mean many things. Usually does not exceed 160 bpm.

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Is there OMI on this ECG?

Dr. Smith's ECG Blog

The patient with no prior cardiac history presented in the middle of the night with acute chest pain, and had this ECG recorded during active pain: I did not see any ischemia on this electrocardiogram. Their apparently excessive length (QT interval) is due to bradycardia. They do not have much bulk. A corrected QT would be normal.

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An unruly case of functional two-to-one atrioventricular block

HeartRhythm

A newborn male was delivered via cesarean section at term due to acute fetal distress and fetal bradycardia, necessitating emergency pacemaker implantation. An electrocardiogram (ECG) showed a two-to-one atrioventricular (AV) block and a prolonged QT interval, along with biphasic T-waves in V3 (Figure 1A).