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Cerebral Perfusion Pressure Calculator — result sheet
Estimate mean arterial pressure and cerebral perfusion pressure from systolic pressure, diastolic pressure, and intracranial pressure while keeping the clinical limits visible.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: MAP ≈ (systolic blood pressure + 2 × diastolic blood pressure) ÷ 3; CPP = MAP − intracranial pressure.
The page separates the estimated mean arterial pressure, pulse pressure, and the cerebral perfusion pressure arithmetic. It is deliberately a transparent educational calculation rather than a target-setting or treatment tool.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Systolic blood pressure — mmHg; minimum 60; maximum 300
- Diastolic blood pressure — mmHg; minimum 20; maximum 200
- Intracranial pressure — mmHg; minimum 0; maximum 100
Worked example
| Input | Value |
|---|---|
| Systolic blood pressure | 120 |
| Diastolic blood pressure | 80 |
| Intracranial pressure | 10 |
MAP ≈ (120 + 2 × 80) ÷ 3 = 93.3333 mmHg; CPP ≈ 83.3333 mmHg.
Assumptions and limits
- The entered blood pressures are measured in mmHg and belong to the same clinical context.
- The MAP expression is a commonly used estimate, not a replacement for a high-fidelity arterial waveform analysis.
- Intracranial pressure is an observed or documented value rather than a value inferred by this page.
- CPP may depend on additional pressure relationships and the patient's physiology beyond this subtraction.
- Measurement technique, timing, rhythm, treatment, and clinical trend are not validated by the calculator.
- No target, alarm, diagnosis, or treatment recommendation is generated.
- A qualified neurocritical-care team must interpret the number in context.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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