From the Guidelines
History findings suggestive of pericardial effusion include chest pain, shortness of breath, fatigue, and a feeling of fullness in the chest, which can be diagnosed using transthoracic echocardiography as the first-line imaging test, as recommended by the 2015 ESC guidelines 1.
Key Symptoms
- Chest pain that worsens when lying flat and improves with sitting forward
- Shortness of breath
- Fatigue
- A feeling of fullness in the chest
- Palpitations, cough, hoarseness, hiccups, or difficulty swallowing due to compression of nearby structures
Relevant Medical History
- Recent viral illness, tuberculosis, cancer, kidney failure, autoimmune disorders, or chest trauma
- Recent cardiac procedures, radiation therapy, or medications like hydralazine, procainamide, or certain chemotherapeutic agents
Diagnostic Approach
- Transthoracic echocardiography is the first-line imaging test for diagnosing pericardial effusion, as it accurately detects pericardial effusion and cardiac tamponade, as well as ventricular dysfunction due to myocardial involvement 1
- The size of pericardial effusion on two-dimensional echocardiography is qualitatively assessed by the end-diastolic distance of the echo-free space between the epicardium and parietal pericardium: small (<10 mm), moderate (10–20 mm), large (>20 mm) 1
- A first diagnostic evaluation is recommended with auscultation, ECG, transthoracic echocardiography, chest X-ray, and routine blood tests, including markers of inflammation, as stated in the 2015 ESC guidelines 1
From the Research
History Findings Suggestive of Pericardial Effusion
The diagnosis of pericardial effusion can be suggested by various history findings, including:
- Acute inflammatory signs such as chest pain, fever, and pericardial friction rub, which are predictive of acute idiopathic pericarditis 2
- Severe effusion with absence of inflammatory signs and absence of tamponade, which is predictive of chronic idiopathic pericardial effusion 2
- Tamponade without inflammatory signs, which is predictive of neoplastic pericardial effusion 2
- Epidemiologic considerations, such as the prevalence of tuberculous pericarditis in underdeveloped geographic areas 2
Clinical Presentation
The presentation of a patient with a pericardial effusion can range from an incidental finding to a life-threatening emergency 3. The clinical presentation can include:
- Dyspnea
- Tachycardia
- Jugular venous distension
- Pulsus paradoxus
- Arterial hypotension and shock in severe cases 2
Etiologies
Pericardial effusions can be caused by various etiologies, including:
- Inflammatory etiologies such as acute idiopathic pericarditis and tuberculous pericarditis 3, 2
- Non-inflammatory etiologies such as neoplastic pericardial effusion 3, 2
- Idiopathic pericardial effusion, which is the most common etiology in developed countries 2
Diagnostic Evaluation
The diagnostic evaluation of pericardial effusion includes: