Aortic Gradient Dobutamine Stress Change Calculator

Differentiate true severe from pseudo-severe aortic stenosis using dobutamine stress echo. True severe: AVA remains <1.0 cm² with flow normalization.

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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

Differentiate true severe from pseudo-severe aortic stenosis using dobutamine stress echo. True severe: AVA remains <1.0 cm² with flow normalization

Each component has a specific meaning:

  • Pseudo-severe aortic stenosis — The pseudo-severe aortic stenosis recorded for the scenario being assessed.

Note: Interpret the as dobutamine stress result against the thresholds and context described above.

How to Use

Enter the pseudo-severe aortic stenosis for the scenario you are assessing. Differentiate true severe from pseudo-severe aortic stenosis using dobutamine stress echo. True severe: AVA remains <1.0 cm² with flow normalization. Use the as dobutamine stress result to inform your calculation.

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Frequently Asked Questions