[Treatment course]
Essential strategies were taken for her, however, she failed to revert to sinus rhythm with a reduction of heart rate to about 80 bpm, until the tenth day of treatment, she reverted to sinus rhythm which was unable to maintain and with a heart rate of 44 bpm. Considering the refractory AF and history of electric defibrillation, therefore, she accepted therapy of AVJA combined with LBBP and implantation of defibrillation electrodes.