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Acute Pericarditis: Likelihood Ratios

Introduction: Inflammation of the pericardium, most commonly viral in nature though can also be caused by bacteria, uremia, tuberculosis, or autoimmune diseases (e.g. Lupus).

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Tags: Cardiac Problem Inflammatory Tag this Diagnosis.

The likelihood ratios of findings for Acute Pericarditis are listed below. See the left navigation bar to change the display.

Blood Test

Finding +LR-LR Comments, Study
Elevated D-dimer Edit Sensitivity = 78%

Study: Acta Radiol. 2013 Dec 10. pii: 0284185113515866. PMID: 24327762

Elevated ESR Edit Sensitivity = 90%

Study: Acta Radiol. 2013 Dec 10. pii: 0284185113515866. PMID: 24327762

Electronic Monitor

Finding +LR-LR Comments, Study
ECG Edit Sensitivity = 50%

Classically, 4 stages are described:

  • Stage I: Concave-up ST segment elevation; PR segment depression
  • Stage II: Normal ST segments, T-wave flattening
  • Stage III: T-wave inversion
  • Stave IV: Resolved T-wave inversion
  • Study: Am Fam Physician. 1998 Feb 15;57(4):699-704. PMID: 9490993

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    Finding +LR-LR Comments, Study
    Chest CT Edit 60.5

    Pericardial thickening or enhancement. Versus control patients with pericardial effusions

    Study: Acta Radiol. 2013 Dec 10. pii: 0284185113515866. PMID: 24327762

    Friction rub, pericardial Edit Sensitivity = 9%

    Thought to be 100% specific for acute pericarditis

    Study: Acta Radiol. 2013 Dec 10. pii: 0284185113515866. PMID: 24327762

    Pleuritic Chest Pain Edit 2.30.4

    Versus control patients with pericardial effusions

    Study: Acta Radiol. 2013 Dec 10. pii: 0284185113515866. PMID: 24327762

    Pleuritic chest pain relieved by sitting up Edit Sensitivity = 24%

    Study: Acta Radiol. 2013 Dec 10. pii: 0284185113515866. PMID: 24327762