Mean Pulmonary Artery Pressure Calculator
Calculate the mean pulmonary artery pressure (mPAP) using systolic and diastolic pressure measurements. This is an important hemodynamic parameter used in the diagnosis and management of pulmonary hypertension.
How to Use This Calculator
- Enter the Pulmonary Artery Systolic Pressure (PASP) value in mmHg
- Enter the Pulmonary Artery Diastolic Pressure (PDAP) value in mmHg
- Review your inputs to ensure accuracy
- Click Calculate to see the mean pulmonary artery pressure and interpretation
Formula Used
mPAP = (PASP + 2 × PDAP) / 3
Where:
- mPAP = Mean Pulmonary Artery Pressure (mmHg)
- PASP = Pulmonary Artery Systolic Pressure (mmHg)
- PDAP = Pulmonary Artery Diastolic Pressure (mmHg)
Example Calculation
Real-World Scenario:
A 65-year-old patient with suspected pulmonary hypertension undergoes right heart catheterization. The measured pressures are PASP = 45 mmHg and PDAP = 18 mmHg. Calculate the mean pulmonary artery pressure.
Given:
- Pulmonary Artery Systolic Pressure (PASP) = 45 mmHg
- Pulmonary Artery Diastolic Pressure (PDAP) = 18 mmHg
Calculation:
mPAP = (45 + 2 × 18) / 3
mPAP = (45 + 36) / 3
mPAP = 81 / 3
Result: 27 mmHg (indicating mild pulmonary hypertension)
Why This Calculation Matters
Practical Applications
- Diagnosis of pulmonary hypertension
- Monitoring treatment response in pulmonary vascular diseases
- Assessment of right ventricular function
- Preoperative evaluation for cardiac surgery
Key Benefits
- Quick and accurate hemodynamic assessment
- Standardized calculation method
- Helps in staging pulmonary hypertension severity
- Essential for clinical decision making
Common Mistakes & Tips
Frequently Asked Questions
References & Disclaimer
Medical Disclaimer
This calculator is for educational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult with a qualified healthcare provider for medical decisions. The calculations provided are approximations and individual patient circumstances may vary.
References
- Simonneau G, et al. Updated Clinical Classification of Pulmonary Hypertension - ACC/AHA 2022 Guidelines for the Diagnosis and Treatment of Pulmonary Hypertension
- Galiè N, et al. Guidelines for the diagnosis and treatment of pulmonary hypertension - European Respiratory Journal
- Hoeper MM, et al. ESC/ERS Guidelines for the diagnosis and treatment of pulmonary hypertension - European Heart Journal
Accuracy Notice
This calculator provides estimates based on standard hemodynamic formulas. Actual clinical interpretation should consider individual patient factors, measurement techniques, and other hemodynamic parameters. Always verify calculations with clinical judgment and additional diagnostic information.
About the Author
Kumaravel Madhavan
Web developer and data researcher creating accurate, easy-to-use calculators across health, finance, education, and construction and more. Works with subject-matter experts to ensure formulas meet trusted standards like WHO, NIH, and ISO.