Complete Heart Block Related to Mumps Myocarditis in an 80-Year-Old Woman

Introduction: Mumps is an acute, self-limited, highly infectious, systemic viral disease characterized by a swelling of the parotid glands. It is more common in school-aged children. We want to emphasize in this case report that mumps can also occur in old people and cause a mortal and rare complication such as complete AV block associated with mumps myocarditis. Case Report: An 80-year-old woman admitted to the emergency room with complaints of swelling around the right ear, fatigue, weakness, dizziness, presyncope, and chest pain. Her grandson had had a fever and swelling around the right and left ear approximately 2 weeks before the beginning of her own ailment. Her core temperature was 37.5°C. Blood pressure was 120/60 mmHg and pulse rate was 37 beats/min. There was swelling of the right parotid gland and complete atrioventricular block in her electrocardiogram. The patient was consulted with a cardiolog and transferred to the cardiology clinic. Conclusion: Mumps is most commonly occurs in children, and the most common presentation of the disease is parotitis. However, it may occur in elders and result in mortal complications.