❤️
Aortic Valve Area Calculator
Calculate Aortic Valve Area (AVA) using the Gorlin Equation
Clinical Formula (Gorlin Equation): $\text{AVA} = \frac{\text{CO}}{\text{HR} \times \text{SEP} \times 44.3 \times \sqrt{\text{Mean Gradient}}}$ (where CO is cardiac output in mL/min, HR is heart rate, SEP is systolic ejection period in s/beat). Aortic Stenosis Severity: Normal ($3.0\text{–}4.0\text{ cm}^2$), Mild ($1.5\text{–}2.0\text{ cm}^2$), Moderate ($1.0\text{–}1.5\text{ cm}^2$), Severe ($< 1.0\text{ cm}^2$). Enter hemodynamic data below.
Hemodynamic Parameters Input
Calculation Results
⚠️ Not medical advice. For educational and clinical decision support only. Always correlate calculated valve area with echocardiographic findings, velocity-time integrals (VTI), and formal cardiologist evaluation.