What are the key components of the physical examination for suspected pericarditis?

Physical Examination for Pericarditis

Auscultation for a pericardial friction rub is the single most important physical examination finding in suspected pericarditis, though it is only present in approximately 19% of cases. 1

Key Physical Examination Components

Primary Finding: Pericardial Friction Rub

• Listen carefully during auscultation - the pericardial rub is a high-pitched, scratchy sound best heard at the left sternal border with the patient leaning forward
• The rub may have one, two, or three components corresponding to atrial systole, ventricular systole, and ventricular diastole
• Critical caveat: The absence of a rub does NOT exclude pericarditis - it's documented in only 19% of presentations 2
• The pericardium itself is electrically inert, so physical findings reflect epicardial inflammation 1

Vital Signs Assessment

Look specifically for high-risk features that indicate complicated disease requiring urgent intervention 1:

• Fever >38°C - suggests bacterial, tuberculous, or neoplastic etiology requiring specific treatment
• Tachycardia >100 bpm - present in 77% of malignant pericarditis cases versus 43% of benign cases 3
• Hypotension or pulsus paradoxus - indicates possible cardiac tamponade (Beck's triad: hypotension, elevated jugular venous pressure, muffled heart sounds) 4

Cardiovascular Examination Beyond Auscultation

• Assess for muffled or distant heart sounds - suggests significant pericardial effusion or tamponade 4
• Evaluate jugular venous pressure - elevated JVP with prominent x descent (without y descent) suggests tamponade
• Check for pulsus paradoxus - a drop in systolic blood pressure >10 mmHg during inspiration indicates hemodynamic compromise 4

Additional Physical Findings to Document

• Respiratory distress or dyspnea - more common in patients with high-risk features and suggests larger effusions 2
• Signs of systemic disease that may cause pericarditis 1:
  • Oral and genital aphthae (Behçet's disease)
  • Dry eyes (Sjögren's syndrome, sarcoidosis)
  • Blood pressure differential between arms (Takayasu arteritis)
  • Macroglossia (amyloidosis)

Clinical Context and Risk Stratification

The physical examination must be interpreted within the broader clinical picture. The 2015 ESC Guidelines mandate that auscultation be combined with ECG, echocardiography, chest X-ray, and inflammatory markers as first-line evaluation 1.

High-Risk Physical Findings Requiring Aggressive Workup

When you identify these on examination, proceed immediately to second-level testing (CT/CMR) and consider pericardiocentesis 1:

• Fever >38°C
• Signs of tamponade (Beck's triad)
• Evidence of subacute presentation (symptoms over days to weeks)

Common Pitfall

Do not rely solely on classic textbook presentations - a study of 179 ED patients with pericarditis found that only 2.8% had radiation to the left shoulder, and only 46.4% had postural pain changes 2. The physical exam is often less dramatic than described in textbooks, making systematic evaluation with ancillary testing essential.

The physical examination serves primarily to identify the pericardial rub (when present) and detect high-risk features requiring urgent intervention, but diagnosis requires at least 2 of 4 criteria: chest pain, pericardial rub, ECG changes, or pericardial effusion 1.