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Course: The Tip of the Iceberg—Concealing of Advanced Conduction Abnormality

CME Credits: 1.00

Released: 2023-11-06

A patient in their 80s visited the cardiology outpatient clinic due to dyspnea and syncope during exercise. The patient had a medical history of essential hypertension and Parkinson disease. They reported experiencing dyspnea on exertion and exercise intolerance for the past year, which made it difficult to walk more than 100 m. The patient also reported syncope during a bicycle ride and loss of consciousness for a few minutes, followed by complete recovery. On presentation, vital signs were normal, except for an elevated blood pressure of 150/78 mm Hg. Chest auscultation revealed normal breath and heart sounds without any murmurs. Laboratory test results, including hemogram, serum electrolytes, and thyroid function test, were within normal limits. Transthoracic echocardiogram revealed normal left ventricular ejection fraction (74%), normal wall motion, left atrial enlargement (volume index, 34.89 mL/m2) with uncertain diastolic function, no significant valvular abnormality, and presence of pulmonary hypertension (mean pulmonary arterial pressure by Abbas formula, 32 mm Hg). The , A shows the electrocardiogram (ECG) obtained on admission.


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