Table 1.
Criteria of SIMPLE scoring system.
| 0 | 1 | 2 | 3 | |
|---|---|---|---|---|
| Presence of maternal chorioamnionitis | No | Yes | ||
| Completed cure of antenatal steroid | Yes | No | ||
| Birth weight, (g) | >1,250 | 1,000–1,250 | 750–1,000 | <750 |
| Cord blood gas base deficit (mmol/L) | <−12 | −12 to −16 | >−16 | |
| *Presence of hypotension requiring inotropic support | No | Yes | ||
| *Presence of tachycardia (beat/min) | <160 | 160–180 | >180 | |
| *Need of invasive MV | no | yes | HFOV | |
| *#Presence of metabolic acidosis | pH: >7.35 | 7.25–7.35 | 7.10–7.25 | <7.1 |
| BD: < −4 | −4 to −10 | −10 to −16 | < −16 | |
| *Presence of respiratory acidosis (PCO2, mmHg) | 35–45 | 45–55 | 55–65 | >65 |
| *Maximum PIP (cmH2O) | <18 | 18–23 | >23 | |
| PIP reduction % according to prior assessment | >20% | %10–20 | <10% | |
| FiO2 at admission (%) | <40 | 40–60 | >60 | |
| FiO2 reduction % according to prior assessment | >20% | 10%−20% | <10% | |
| Number of surfactant administered | 0 | 1 | >1 |
*
During evaluation episode.
#
The highest score will be given according to pH or BD.
BD, base deficit; HFOV, high frequency oscillatory ventilation; MV, mechanical ventilation; PIP, peak inspiratory pressure.