Research Article

Impact of HACOR Score on Noninvasive Ventilation Failure in Non-COPD Patients with Acute-on-Chronic Respiratory Failure

Figure 2

Differences in the HACOR score from initiation to 24 h of NIV between patients who experienced successful NIV and NIV failure. HACOR, heart rate, acidosis, consciousness, oxygenation, and respiratory rate; NIV, noninvasive ventilation; H0, initiation; H1-2, 1-2 h of NIV; H12, 12 h of NIV; H24, 24 h of NIV.