Pregnancy and complete atrioventricular block: a case report.

Unlabelled: Bradycardia in pregnancy due to complete atrioventricular block (CAVB) is a rare but serious occurrence that can be life-threatening to the mother and fetus. Patients with CAVB may be asymptomatic, but symptomatic cases require urgent and definitive management.

Case Presentation: The case of a 20-year-old primigravida with previously undiagnosed CAVB who attended the obstetric emergency service in labor is presented.

Coronary artery fistulas as a rare cause of heart failure and ventricular arrhythmia, associated with multiple large vessel fistulas.

Coronary artery fistulas are abnormal connections between the coronary arteries with a heart chamber or any of the major blood vessels. Fistulous connections between systemic arteries and pulmonary vessels are even less frequent. We present a case of a 71-year-old man with symptoms of dyspnea, exercise intolerance, and ventricular arrhythmia who attended the emergency department.