Successful treatment of systemic sclerosis complicated by ventricular tachycardia with a cardiac resynchronization therapy-defibrillator: A case report

Table 1 Timeline of the diagnosis and treatment

Time	Events
2007	The patient was diagnosed with diffuse systemic sclerosis based on Raynaud’s phenomenon, sclerotic changes, and positive results of an anti-Scl70 antibody test and a skin biopsy
2017	The patient’s conditions progressively worsened and electrocardiogram at rest showed a sinus rhythm with QS waves from V1 to V3, and an intraventricular conduction block
January-June 2019	The patient had three syncopal episodes, electrocardiogram revealed monomorphic wide QRS complex ventricular tachycardia, and she was recovered from syncope by electrocardiography
July 2019	Electrocardiogram showed sinus rhythm with complete left bundle branch block (QRS duration 126 ms), and the patient was successfully treated with a cardiac resynchronization therapy-defibrillator (St. Jude Medical Unify CD3231-40) on July 25, 2019