The electrocardiogram often fails to identify pericarditis after percutaneous transluminal coronary angioplasty

Insights

Acute pericarditis occurred in 6/1,316 patients after percutaneous transluminal coronary angioplasty (PTCA). Dissection at the PTCA site caused localized pericarditis, often presenting atypically without classic ECG changes.

Area of Science:

  • Cardiology
  • Interventional Cardiology

Background:

  • Percutaneous transluminal coronary angioplasty (PTCA) is a common procedure for coronary artery disease.
  • Acute pericarditis is a potential complication following cardiac procedures.

Observation:

  • Six cases of acute pericarditis were identified in 1,316 patients undergoing PTCA.
  • Patients presented with atypical chest pain, low-grade fever, and pericardial friction rub.
  • Cardiac enzymes (CK-MB) were mildly elevated in half of the affected patients.

Findings:

  • Thallium-201 perfusion imaging showed no perfusion defects.
  • Electrocardiograms (ECG) revealed minor ST-T abnormalities in most patients, with only one showing classical ST elevation.
  • Vessel occlusion or compromise was not observed; significant dissection at the PTCA site was consistently noted.

Implications:

  • Dissection following PTCA can lead to regional, localized acute pericarditis.
  • Standard ECG may not detect this localized form of pericarditis.
  • Clinical presentation and auscultation are crucial for diagnosing PTCA-associated pericarditis.

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