An unusual case of ventricular fibrillation

Double rhythm in double heart

We describe the case of a patient with heterotopic transplantation, sinus rhythm originating from the donor heart, ventricular fibrillation of the native heart and right severe decompensation. The double rhythm was easily detected with a surface ECG and the transthoracic echocardiogram, both performed in the left conventional and in the right modified mode. The patient was successfully treated with direct current shock with quick restoration of native heart synchronization and clinical relief of symptoms.

Catheter Ablation of Recipient Right Ventricular Tachycardia after Heterotopic Heart Transplantation

Ventricular tachycardia after heart transplantation. A case is reported of ventricular tachycardia (VT) in a 62-year-old male after heterotopic heart transplantation, who occasionally had attacks of palpitation. Surface electrocardiogram suggested VT arising from the recipient heart. Intracardiac electrograms and entrainment mapping confirmed macroreentrant VT located in the recipient right ventricle. Radiofrequency ablation using an electroanatomical mapping system (CARTO, Biosense Webster, Diamond Bar, CA, USA) successfully eliminated VT.