Cardiac tamponade differential diagnosis

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Priyamvada Singh, M.D. [2]Ramyar Ghandriz MD[3]
Overview
The initial diagnosis of cardiac tamponade can be challenging, as there are a number of differential diagnoses, including tension pneumothorax, hypovolemia and acute congestive heart failure. The differential diagnosis of cardiac tamponade differs based on the type of cardiac tamponade (either acute or subacute).
Differentiating Cardiac Tamponade from Other Diseases
Differential Diagnosis of Acute Cardiac Tamponade
In a trauma patient presenting with PEA (pulseless electrical activity) in the absence of hypovolemia and tension pneumothorax, the most likely diagnosis is cardiac tamponade.[1] Other acute disorders that cardiac tamponade must be distinguished from include:
- Aortic dissection
- Congestive heart failure
- Hypovolemia
- Pulmonary embolus
- Right ventricular myocardial infarction
- Tension pneumothorax
Differential Diagnosis of Subacute Cardiac Tamponade
Signs of classical cardiac tamponade include three signs, known as Beck’s triad. Hypotension occurs because of decreased stroke volume, jugular-venous distension due to impaired venous return to the heart, and muffled heart sounds due to fluid inside the pericardium.[2]
Other signs of tamponade include pulsus paradoxus (a drop of at least 10mmHg in arterial blood pressure on inspiration), and ST segment changes on the electrocardiogram, which may also show low voltage QRS complexes, as well as general signs & symptoms of shock (such as tachycardia, breathlessness and decreasing level of consciousness).
Echocardiography, which is the diagnostic test of choice, often demonstrates an enlarged pericardium or collapsed ventricles. Tamponade can often be diagnosed radiographically, if time allows and the chest x-ray may show a large, globular heart if the pericardial effusion is large.
Differential table
| Type of Shock | Etiology | CO | SVR | PCWP | CVP | SVO2 | RVS | RVD | PAS | PAD |
| Cardiogenic | Acute Ventricular Septal Defect | ββ | β | N β β | ββ | β β ββ | N β β | β | N β β | N β β |
| Acute Mitral Regurgitation | ββ | β | ββ | β β ββ | β | β | N β β | β | β | |
| Myocardial Dysfunction | ββ | β | ββ | ββ | β | N β β | N β β | N β β | β | |
| Right Ventricular Infarction | ββ | β | N β β | ββ | β | β β β | β | β β β | β β β | |
| Obstructive | Pulmonary Embolism | ββ | β | N β β | ββ | β | β β β | β | β β β | β β β |
| Cardiac Tamponade | β β ββ | β | ββ | ββ | β | N β β | β | N β β | N β β | |
| Distributive | Septic Shock | N β ββ | β β ββ | N β β | N β β | β β ββ | N β β | N β β | β | β |
| Anaphylactic Shock | N β ββ | β β ββ | N β β | N β β | β β ββ | N β β | N β β | β | β | |
| Hypovolemic | Volume Depletion | ββ | β | ββ | ββ | β | N β β | N β β | β | β |
- Note that that in Obstructive shock PCWP (left atrial pressure) which is an indicator of left circulation preload , decreases, but in tamponade it increases paradoxically due to pericardial effusion pressure on left atrium.
The following table outlines the major differential diagnoses of Shock on the basis of clinical manifestations..[5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40]
Abbreviations: ABG (arterial blood gas); ACE (angiotensin converting enzyme); BMI (body mass index); CBC (complete blood count); CSF (cerebrospinal fluid); CXR (chest X-ray); ECG (electrocardiogram); FEF (forced expiratory flow rate); FEV1 (forced expiratory volume); FVC (forced vital capacity); JVD (jugular vein distention); MCV (mean corpuscular volume); Plt (platelet); RV (residual volume); SIADH (syndrome of inappropriate antidiuretic hormone); TSH (thyroid stimulating hormone); Vt (tidal volume); WBC (white blood cell); Coronary CT angiography (CCTA); multidetector row scanners (MDCT); Cardiovascular magnetic resonanceΒ βΒ CMRI; Myocardial perfusion imaging (MPI); single-photon emission CT (SPECT); Positron emission tomography (PET) scanning; Magnetic resonance (MR) angiography, Computed tomographic (CT) angiography, and Transesophageal echocardiography (TEE), late gadolinium enhancement (LGE); right ventricular hypertrophy (RVH), right atrial enlargement (RAE), functional tricuspid regurgitation (TR), Pulmonary artery systolic pressure (PASP; adenosine deaminase (ADA); Serum amyloid A (SAA), soluble interleukin-2 receptor (sIL2R); High-resolution CT (HRCT) scanning
| Differentials on the basis of Etiology | Disease | Clinical manifestations | Diagnosis | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Symptoms | Risk factors | Physical exam | Lab Findings | EKG | Imaging | Gold standard | |||||||||
| Onset | Duration | Quality of Pain | Cough | Fever | Dyspnea | Weight loss | Associated Features | ||||||||
| Pericardial Tamponade[41][42] | Acute or subacute | May last for hours to days |
|
+/- | + | + | – |
|
EKG findings:
|
|
|||||
| Myocardial Infarction[5][6][7][8] | Acute | Commonly > 20 minutes |
|
– | – | + | – |
|
|
|
|
| |||
| Cardiac | |||||||||||||||
| Aortic Dissection[43][44] | Sudden severe progressive pain (common) or chronic (rare) | Variable |
|
– | – | + | – |
|
|
|
|
|
| ||
| Aortic intramural hematoma | Sudden severe progressive pain (common) or chronic (rare) | Variable |
|
– | – | + | – |
|
|
|
|
|
| ||
| Penetrating atherosclerotic aortic ulcer[45][46][47] | Sudden severe pain | Variable |
|
– | – | + | – |
|
_ |
_ |
|
| |||
| Myocarditis[48][49][50] | Acute or subacute | Variable |
|
+/- | + | + | – |
|
|
|
|
||||
| Hypertrophic cardiomyopathy[51][52][53] | Acute or subacute | Variable | Typical or atypical chest pain | – | – | + | – |
|
|
|
Non-specific |
|
|
Genetic testing for HCM | |
| Stress (takotsubo) | Acute | Commonly > 20 minutes |
|
– | – | + | – |
|
Stress |
|
|
|
|||
| Aortic Stenosis[58][59][60] | Acute, recurrent episodes of angina | 2-10 minutes |
|
– | – | + | – |
|
|
|
|
|
|||
| Heart Failure[61][62][63] | Subacute or chronic | Variable |
|
+ | +/- | + | + | Dyslipidemia, hypertension, smoking, family history of premature disease, and diabetes |
|
|
|
||||
| Differentials on the basis of Etiology | Disease | Clinical manifestations | Diagnosis | ||||||||||||
| Symptoms | Risk factors | Physical exam | Lab Findings | EKG | Imaging | Gold standard | |||||||||
| Onset | Duration | Quality of Pain | Cough | Fever | Dyspnea | Weight loss | Associated Features | ||||||||
| Pulmonary | Pulmonary Embolism[64][65] | Acute | May last minutes to hours |
|
+ | +/- | + | – |
|
Β Hormone replacement therapy
Cancer Oral contraceptive pills StrokeΒ Pregnancy PostpartumΒ Prior history ofΒ VTE ThrombophiliaΒ |
|
|
|
||
| Spontaneous Pneumothorax[66][67] | Acute | May last minutes to hours |
|
– | – | + | – |
|
|
|
|
|
| ||
| Tension Pneumothorax[68][69] | Acute | May last minutes to hours |
|
– | – | + | – |
|
|
|
|
||||
| Pleural Effusion[70][71][72] | Acute or subacute or chronic | Variable |
|
+ | +/- | + | +/- |
|
|
|
|
||||
| Acute chest syndrome (Sickle cell anemia)[73][74][75] | Acute | May last minutes to hours |
|
+ | +/- | + | – |
|
|
|
|
|
— | ||
| Differentials on the basis of Etiology | Disease | Clinical manifestations | Diagnosis | ||||||||||||
| Symptoms | Risk factors | Physical exam | Lab Findings | EKG | Imaging | Gold standard | |||||||||
| Onset | Duration | Quality of Pain | Cough | Fever | Dyspnea | Weight loss | Associated Features | ||||||||
| Gastrointestinal | Perforated Peptic Ulcer[76][77][78] | Acute |
|
|
+/- | – | – | +/- |
|
|
|
|
|
| |
| Esophagitis[79][80][81] | Acute | Variable |
|
+ | + | – | +/- |
|
|
|
|||||
| Esophageal Perforation[10] | Acute | Minutes to hours |
|
– | +/- | + | – |
|
|
|
|
|
| ||
| Mediastinitis[82][83][84][85] | Acute, Chronic | Variable |
|
+/- | + | + | – |
|
|
|
|
|
|
CT scan | |
| Pancreatitis[86][87][88][89][90] | Acute, Chronic | Variable |
|
– | + | + | +/- |
|
|
|
|
| |||
| IBD[91] | Acute, Chronic | Variable |
|
– | + | + | + |
|
|
|
|
|
|
| |
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