Leadless cardiac pacemaker

Case contributed by Ammar Ashraf
Diagnosis certain

Presentation

Presented to the emergency department with history of dizziness and shortness of breath for 4 days.

Patient Data

Age: 90 years
Gender: Male
x-ray

A small cylindrical opacity measuring 8 x 21 mm is seen projecting over the cardiac shadow, representing a wireless/leadless cardiac pacemaker. Mild hilar vascular congestion. No frank consolidation, pleural effusion or pneumothorax is seen. Calcifications are seen in the aortic knuckle. 

Case Discussion

  • examination findings showed severe bradycardia (heart rate = 34). 
  • ECG showed complete heart block
  • echocardiography showed normal biventricular size and systolic function, mildly dilated atria, and mild tricuspid regurgitation
  • the patient underwent percutaneous (via femoral approach) implantation of right ventricular single chamber, leadless cardiac pacemaker.

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