Preexcitation

Case 77: A 30-Year-Old Man with Non-specific Symptoms

Case 77: A 30-Year-Old Man with Non-specific Symptoms History Diagnosis History This 30-year-old factory worker is referred because of numerous nonspecific symptoms (dyspnea on exertion, rapid palpitation of gradual onset and offset, lightheadedness, sharp localized precordial pain). The ECG is abnormal, and there are no evidence of structural heart disease by echocardiography: Diagnosis Sinus Rhythm

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Case 78: A 35-Year-Old Machine Operator with Palpitation

Case 78: A 35-Year-Old Machine Operator with Palpitation History Diagnosis History This 35-year-old machine operator started complaining one year ago of episodes of rapid “thumping” in his precordium every 2-3 months lasting 10-20 minutes: Diagnosis Sinus rhythm with sinus arrhythmia Wolff-Parkinson-White (WPW) Anteroseptal Accessory pathway Comment: An anteroseptal bypass tract was identified by EP studies. ECG …

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