preset_ecmo_score: PRESET Score for Survival on ECMO

In cliot: Clinical Indices and Outcomes Tools

PRESET Score for Survival on ECMO

Description

Calculates the PREdiction of Survival on ECMO Therapy (PRESET) Score. This tool predicts in-hospital survival for adult patients placed on venovenous extracorporeal membrane oxygenation (VV-ECMO) for severe acute respiratory failure. It stratifies patients into three risk classes based on admission physiology and pre-ECMO hospital duration.

Usage

preset_ecmo_score(mean_arterial_pressure, lactate, arterial_ph,
                  platelet_count, hospital_days_pre_ecmo)

Arguments

mean_arterial_pressure	Numeric. Mean Arterial Pressure (MAP) in mmHg. >100: 0 pts 91-100: 1 pt 81-90: 2 pts 71-80: 3 pts <=70: 4 pts
lactate	Numeric. Serum lactate concentration in mmol/L. <=1.5: 0 pts 1.51-3.0: 1 pt 3.01-6.0: 2 pts 6.01-10.0: 3 pts >10.0: 4 pts
arterial_ph	Numeric. Arterial pH (pHa). >7.30: 0 pts 7.201-7.30: 1 pt 7.101-7.20: 2 pts <=7.10: 3 pts
platelet_count	Numeric. Platelet count in x10^3/uL (or x10^9/L). >200: 0 pts 101-200: 1 pt <=100: 2 pts
hospital_days_pre_ecmo	Numeric. Number of days in the hospital before ECMO initiation. <=2: 0 pts 3-7: 1 pt >7: 2 pts

Value

A list containing:

PRESET_Score	The calculated score (Range 0-15).
Risk_Class	Risk classification (Class I: 0-3, Class II: 4-5, Class III: >=6).
Est_Hospital_Survival	Estimated probability of survival to hospital discharge.

References

Hilder M, Herbstreit F, Adamzik M, et al. Comparison of mortality prediction models in acute respiratory distress syndrome undergoing extracorporeal membrane oxygenation and development of a novel prediction score: the PREdiction of Survival on ECMO Therapy-Score (PRESET-Score). Crit Care. 2017;21(1):301. doi:10.1186/s13054-017-1888-6

Examples

# Example 1: Good Prognosis (Class I)
# MAP 95, Lactate 1.2, pH 7.35, Plt 250, Day 1
# Score = 1 + 0 + 0 + 0 + 0 = 1
preset_ecmo_score(95, 1.2, 7.35, 250, 1)

# Example 2: Poor Prognosis (Class III)
# MAP 65, Lactate 8.0, pH 7.15, Plt 80, Day 8
# Score = 4 + 3 + 2 + 2 + 2 = 13
preset_ecmo_score(65, 8.0, 7.15, 80, 8)

cliot documentation built on Dec. 1, 2025, 1:06 a.m.