cliot (version 1.0.0)

hacor_score: HACOR Score for NIV Failure

Description

Calculates the HACOR score to predict the likelihood of Non-Invasive Ventilation (NIV) failure in patients with hypoxemic respiratory failure. The score is based on Heart rate, Acidosis (pH), Consciousness (GCS), Oxygenation (PaO2/FiO2), and Respiratory rate. A score > 5 assessed 1 hour after initiation suggests a high risk of failure.

Usage

hacor_score(heart_rate, ph, gcs, pao2_fio2_ratio, respiratory_rate)

Value

A list containing:

HACOR_Score

The calculated score (Range 0-25).

NIV_Failure_Probability

Estimated probability of NIV failure.

Recommendation

Clinical suggestion regarding intubation.

Arguments

heart_rate

Numeric. Heart rate in beats per minute. (>= 120 adds 1 point).

ph

Numeric. Arterial pH. (<7.25: 4 pts; 7.25-7.29: 3 pts; 7.30-7.34: 2 pts).

gcs

Numeric. Glasgow Coma Scale score. (<15 adds 10 points).

pao2_fio2_ratio

Numeric. PaO2/FiO2 ratio. (<=100: 6 pts; 101-125: 5 pts; 126-150: 4 pts; 151-175: 3 pts; 176-200: 2 pts).

respiratory_rate

Numeric. Respiratory rate in breaths per minute. (>45: 4 pts; 41-45: 3 pts; 36-40: 2 pts; 31-35: 1 pt).

References

Duan J, Han X, Bai L, et al. Assessment of heart rate, acidosis, consciousness, oxygenation, and respiratory rate to predict noninvasive ventilation failure in hypoxemic patients. Intensive Care Med. 2017;43(2):192-199. doi:10.1007/s00134-016-4601-3

Examples

# Example 1: High Risk
# HR 130 (+1), pH 7.20 (+4), GCS 14 (+10), PF 120 (+5), RR 35 (+1)
# Score = 21
hacor_score(130, 7.20, 14, 120, 35)

# Example 2: Low Risk
# HR 90 (0), pH 7.40 (0), GCS 15 (0), PF 250 (0), RR 20 (0)
# Score = 0
hacor_score(90, 7.40, 15, 250, 20)