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Purulent Pericarditis Due to an Infected Pacemaker Lead
1Department of Internal Medicine, LSU Health Sciences Center in New Orleans, LA.
Summary
A rare case of purulent pericarditis and cardiac tamponade occurred in an IV drug user due to an infected pacemaker wire. Despite treatment, the patient experienced complications and died from sepsis and bradycardia.
Area of Science:
- Cardiology
- Infectious Diseases
- Medical Case Studies
Background:
- Intravenous drug users (IVDU) face elevated risks for infective endocarditis, particularly with cardiac devices.
- Purulent pericarditis is an uncommon condition, often resulting from iatrogenic causes or direct/hematogenous spread.
Purpose of the Study:
- To present a rare case of purulent pericarditis and cardiac tamponade.
- To highlight the complications arising from infected pacemaker leads in IVDU.
Main Methods:
- A case study of a 75-year-old male with a history of IV drug abuse and a pacemaker.
- Diagnostic procedures included EKG, cardiac catheterization, echocardiography, and CT scan.
- Surgical intervention involved pacemaker removal and pericardial window creation.
Main Results:
- Infected pacemaker lead extended through the right ventricular wall into the pericardial and pleural cavities.
- Patient presented with sepsis, purulent pericarditis, cardiac tamponade, and multiple infected fluid collections (pleural effusion, perihepatic).
- Despite initial improvement with antibiotics and drainage, the patient developed severe bradycardia and hypotension, leading to death.
Conclusions:
- This case demonstrates a rare instance of purulent pericarditis and cardiac tamponade caused by an infected pacemaker wire breaching the pericardium.
- Emphasizes the importance of assessing for secondary infection foci in bacterial endocarditis cases.