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Ascending Aortic Constriction in Rats for Creation of Pressure Overload Cardiac Hypertrophy Model
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Constriction infection.

J A Purvis1, M Roberts, M T Harbinson

  • 1Cardiac Unit, Altnagelvin Hospital, Western HSC Trust, Derry, Northern Ireland, UK. john.purvis@btinternet.com

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Summary
This summary is machine-generated.

Pericardial calcification, often overlooked, can indicate significant constrictive pericarditis. Prompt cardiac imaging and assessment are crucial for diagnosing and managing this condition, even in non-tuberculous cases.

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Area of Science:

  • Cardiology
  • Radiology
  • Infectious Diseases

Background:

  • Chronic constrictive pericarditis (CCP) is characterized by cardiac compression from pericardial thickening.
  • In Western populations, CCP is infrequently tuberculous or calcific, leading to underestimation of pericardial calcification (PC) as a diagnostic marker.

Observation:

  • A 48-year-old male presented with atrial flutter, chest infection, and right heart congestion.
  • Previous CT revealed PC; current cardiac catheterization confirmed hemodynamically significant CCP.
  • Cardiac MRI demonstrated pericardial mass lesions, right ventricular compression, right atrial enlargement, hepatic enlargement, and a left lung pneumonia.

Findings:

  • The patient was diagnosed with bacterial super-infection of tuberculous CCP, confirmed by pericardectomy which also revealed an infected fistula into the left lung.
  • This case highlights that PC, even without typical tuberculous or calcific features, warrants comprehensive hemodynamic and anatomical evaluation.

Implications:

  • Pericardial calcification should prompt thorough investigation using non-invasive imaging modalities to rule out hemodynamically significant CCP.
  • Early and accurate diagnosis of CCP, regardless of etiology, is essential for timely intervention and improved patient outcomes.
  • This case underscores the importance of considering diverse etiologies for CCP and the utility of advanced imaging in diagnosis.