RESP Score (Respiratory ECMO Survival)
RESP score (Schmidt 2014): age band, immunocompromise, pre-ECMO ventilation duration, acute respiratory diagnosis, and acute modifiers predict survival on respiratory ECMO (class I–V).
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Age band
- 50-59 (-2)
- Mechanical ventilation before ECMO
- < 48 hours (+3)
- Acute respiratory diagnosis
- Trauma / burn (+3)
- Immunocompromised
- No
- CNS dysfunction
- No
- Non-pulmonary infection
- No
- Neuromuscular blockade
- No
- Inhaled nitric oxide
- No
- Bicarbonate infusion
- No
- Cardiac arrest
- No
The other 2 values
- PaCO₂ ≥ 75 mmHg
- No
- Peak inspiratory pressure ≥ 42
- No
Result: RESP score 4 — class II, predicted survival ~76%.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- I-II (>= 3)
- Higher predicted respiratory-ECMO survival (~76-92%).
- III-V (<= 2)
- Lower predicted survival (~18-57%). A survival estimate, not an ECMO order.
What you enter
- Age band (points)
- Mechanical ventilation before ECMO (points)
- Acute respiratory diagnosis (points)
- Immunocompromised (−2)
- CNS dysfunction (−7)
- Non-pulmonary infection (−3)
- Neuromuscular blockade (+1)
- Inhaled nitric oxide (−1)
- Bicarbonate infusion (−2)
- Cardiac arrest (−2)
The other 2 fields
- PaCO₂ ≥ 75 mmHg (−1)
- Peak inspiratory pressure ≥ 42 (−1)
How this is calculated
Schmidt M, Bailey M, Sheldrake J, et al. Predicting survival after extracorporeal membrane oxygenation for severe acute respiratory failure: the Respiratory ECMO Survival Prediction (RESP) score. Am J Respir Crit Care Med. 2014;189(11):1374-1382. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.