We present a rare case of gingival cancer with pulmonary metastases that developed life-threatening complete atrioventricular block and ventricular fibrillation as a result of myocardial metastases. This case suggests that implantable cardioverter defibrillators significantly improve the quality of life in these patients and maintain their performance status.
Keywords: Complete atrioventricular block; gingival cancer; implantable cardioverter defibrillator; lung cancer; myocardial metastasis.