TAPSE/PAPS Coupling RV-PA Threshold

Calculate RV-PA coupling using the TAPSE/PAPS ratio. A ratio <0.55 mm/mmHg indicates uncoupling and predicts worse outcomes in pulmonary hypertension and right heart failure.

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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

Calculate RV-PA coupling using the TAPSE/PAPS ratio. A ratio <0.55 mm/mmHg indicates uncoupling and predicts worse outcomes in pulmonary hypertension and right heart failure

Each component has a specific meaning:

  • TAPSE/PAPS ratio — The tapse/paps ratio recorded for the scenario being assessed.

Note: Interpret the tapse/paps coupling result against the thresholds and context described above.

How to Use

Enter the TAPSE/PAPS ratio for the scenario you are assessing. Calculate RV-PA coupling using the TAPSE/PAPS ratio. A ratio <0.55 mm/mmHg indicates uncoupling and predicts worse outcomes in pulmonary hypertension and right heart failure. Use the tapse/paps coupling result to inform your calculation.

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Frequently Asked Questions