Variable AV Conduction

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Case 7: A 66-Year-Old Man in the ED with Palpitation and Dyspnea​

Case 7: A 66-Year-Old Man in the ED with Palpitation and Dyspnea History Diagnosis ECG 2 ECG 2 Diagnosis History A 66-year-old man presents to the emergency department with palpitations and dyspnea: Diagnosis Atrial flutter with 2:1 AV conduction Ventricular rate 146/min Clues that suggest atrial flutter with 2:1 AV conduction: A regular narrow-QRS tachycardia …

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Case 21: A 58-Year-Old Hypertensive Man in the Emergency Department

Case 21: A 58-Year-Old Hypertensive Man in the Emergency Department History Diagnosis History A 58-year-old hypertensive man is in the Emergency Department, complaining of palpitation and dyspnea: Diagnosis Atrial flutter with variable AV conduction, Ventricular rate 100/min Minor voltage criteria for left ventricular hypertrophy (S in V1 + R in V5 = 37 mm) ECG …

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Case 36: A 75-Year-Old Woman with Intermittent Palpitations

Case 36: A 75-Year-Old Woman with Intermittent Palpitations History Diagnosis ECG 2 ECG 2 Diagnosis History A 75-year-old woman with a 10-year history of well-treated hypertension is referred for cardiac assessment for intermittent palpitation, that she describes as the sensation of her heart “beating strong and fast”: Diagnosis Atrial flutter with 2 to 1 AV …

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Case 40: A 50-Year-Old Woman with a Prosthetic Cardiac Valve

Case 40: A 50-Year-Old Woman with a Prosthetic Cardiac Valve History Diagnosis History A 50-year-old woman is presenting one month after replacement of her aortic valve with a mechanical prosthesis because of severe aortic stenosis: Diagnosis Atrial flutter with variable AV conduction Ventricular rate 107/min Comment: The ECG shows no evidence of LVH in this …

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Case 4: A 79-Year-Old Man in the Emergency Department with Palpitation

Case 4: A 79-Year-Old Man in the Emergency Department with Palpitation History Diagnosis ECG 2 ECG 2 Diagnosis History A 79-year-old man was referred to the Emergency Department by his family physician. During the past 12 hours he had been complaining  of palpitation, weakness and dyspnea. He had been well treated for hypertension. Prior to …

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Case 27: A 70-Year-Old Man in the ICU with Respiratory Failure

Case 27: A 70-Year-Old Man in the ICU with Respiratory Failure History Diagnosis History This 70-year-old man with COPD is admitted to the ICU with severe respiratory failure: Diagnosis Atrial flutter with 2:1 AV conduction (changing to variable AV conduction during the last 2 seconds of recording) Left axis deviation Low QRS voltage in the …

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