HFNO group | Venturi mask group | P value | |
---|---|---|---|
(n = 52) | (n = 48) | ||
Primary endpoint | |||
Number (%) of patients requiring mechanical ventilation | 8 (15 %) | 4 (8 %) | 0.36 |
Noninvasive mechanical ventilation | 6a | 3a | |
Invasive mechanical ventilation | 4 | 2 | |
Secondary endpoints, median [25th–75th percentile] | |||
Discomfort VAS scoreb at 120 min | 3 [1–5] | 3 [0–5] | 0.88 |
Dyspnea VAS scoreb at 120 min | 3 [2 – 6] | 3 [1–6] | 0.87 |
Thirst VAS scoreb at 120 min | 6 [3–8] | 6 [5 – 9] | 0.40 |
Respiratory rate at 120 min, breaths/min | 25 [22–29] | 25 [21–31] | |
Heart rate at 120 min, beats/min | 98 [90–110] | 99 [83–112] | 0.43 |