Atrial tachycardia in an electrically dissociated native right atrium after heart transplantation
نویسندگان
چکیده
Symptomatic atrial tachyarrhythmia (AT) after heart transplantation occurs in nearly 10% of orthotopic heart transplant recipients, with atrial flutter (AFL) being the most common. Case reports have described adult transplant recipients presenting with multiple ATs in the donor as well as native atria. However, there have been no reports of heart transplant recipients with biatrial anastomosis whose donor atria were in normal sinus rhythm while the native atria were in AT. We present our findings in a 19-year-old heart transplant recipient who underwent electrophysiology study and whose native atrium was found to be in atrial tachycardia while donor atrium was in normal sinus rhythm with normal 1:1 atrioventricular (AV) conduction.
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A68-year-old man presented with an incessant supraventricular tachycardia 3 months after heart transplantation. A dual-chamber pacemaker had been implanted immediately after surgery for bradyarrhythmias. Electrophysiological study was performed with a multipolar halo catheter (20 electrode pairs) in the right atrium and bior quadripolar catheters in a high lateral, His, and coronary sinus ostiu...
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Introduction Atrial fibrillation (AF) is rare in patients after orthotopic heart transplantation (OHT) and most commonly has been described in the setting of acute rejection or transplant vasculopathy. The principal reason postulated for the rarity of AF after OHT is the fact that the pulmonary veins and posterior left atrial (LA) wall are isolated as a direct result of the left atrioatrial ana...
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