Pericardial Effusion Size Estimation and Tamponade Risk Assessment

Estimates pericardial effusion size from echocardiographic diastolic echo-free space, calculates hemodynamic tamponade risk using Beck triad and respiratory variation, and indicates pericardiocentesis urgency.

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Estimates pericardial effusion size from echocardiographic diastolic echo-free space, calculates hemodynamic tamponade risk using Beck triad and respiratory variation, and indicates pericardiocentesis urgency

Each component has a specific meaning:

  • Echocardiographic diastolic echo-free space — The echocardiographic diastolic echo-free space recorded for the patient or scenario being assessed.
  • Calculates hemodynamic tamponade risk — The calculates hemodynamic tamponade risk recorded for the patient or scenario being assessed.

Note: Interpret the pericardial tamponade risk result against the clinical thresholds and context described above.

How to Use

Enter the echocardiographic diastolic echo-free space, calculates hemodynamic tamponade risk for the patient or scenario you are assessing. Estimates pericardial effusion size from echocardiographic diastolic echo-free space, calculates hemodynamic tamponade risk using Beck triad and respiratory variation, and indicates pericardiocentesis urgency. Use the pericardial tamponade risk result to inform your clinical assessment.

Frequently Asked Questions