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  • Title: [Pre-excitation pattern associated with accessory pathway related tachycardia: case report].
    Author: Burazor M, Burazor I, Mujović N.
    Journal: Srp Arh Celok Lek; 2010; 138(9-10):639-42. PubMed ID: 21180096.
    Abstract:
    INTRODUCTION: Pre-excitation is based on an accessory conduction pathway between the atrium and ventricle. The term Wolff-Parkinson-White (WPW) syndrome is used for patients with the pre-excitation/WPW pattern associated with AP-related tachycardia. CASE OUTLINE: We present a 52-year-old man with severe palpitation, fatigue, lightheadedness and difficulty breathing. The initial ECG showed tachyarrhythmia with heart rate between 240 and 300/min. He was treated with antiarrhythmics (Digitalis, Verapamil, Lidocaine) with no response. Then, the patient was treated with electrical cardioversion and was referred to our Clinic for further evaluation with the diagnosis: "Ventricular tachycardia". During in-hospital stay, the previously undiagnosed WPW pattern had been seen. Additional diagnostic tests confirmed permanent pre-excitation pattern (ECG Holter recording, exercises test). The patient was referred to an electrophysiologist for further evaluation. Mapping techniques provided an accurate assessment of the position of the accessory pathway which was left lateral. The elimination of the accessory pathway by radiofrequent catheter ablation is highly effective in termination and elimination of tacchyarrhythmias. CONCLUSION: Symptomatic, life-threatening arrhythmia, first considered as ventricular tachycardia, reflected atrial fibrillation with ventricular pre-excitation over an accessory pathway in a patient with previously undiagnosed WPW syndrome.
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