Surgical mask on top of high-flow nasal cannula improves oxygenation in critically ill COVID-19 patients with hypoxemic respiratory failure

Montiel, Virginie; Robert, Arnaud; Robert, Annie; Nabaoui, Anas; Marie, Tourneux; Mestre, Natalia Morales; Guillaume, Maerckx; Laterre, Pierre-François; Wittebole, Xavier

doi:10.1186/s13613-020-00744-x

Annals of Intensive Care

Table 2 Haemodynamic and respiratory parameters of all patients (from 1 to 21)

From: Surgical mask on top of high-flow nasal cannula improves oxygenation in critically ill COVID-19 patients with hypoxemic respiratory failure

Phase 1: High-flow nasal cannula							Phase 2: High-flow nasal cannula + surgical mask							Increase from phase 1 to 2 (%)
Blood pressure (BP) systolic/mean/diastolic (mmHg)	Heart rate (min)	Respiratory rate (min)	PCO₂ (mmHg)	PaO₂ (mmHg)	SaO₂ (%)	PaO₂/FiO₂ ratio	Blood pressure (BP) systolic/mean/diastolic (mmHg))	Heart rate (min)	Respiratory rate (min)	PCO₂ (mmHg)	PaO₂ (mmHg)	SaO₂ (%)	PaO₂/FiO₂ ratio	PaO₂/FiO₂ ratio PaO₂	SaO₂
121/78/56	81	32	24	66	92	110	124/79/56	76	31	23	68	93	113	3	1
109/76/58	82	40	35	65	91.6	81	105/77/60	85	32	34	74	94	93	14	3
168/99/67	91	27	32	67	92.7	67	157/98/75	88	26	33	90	96.3	90	34	4
177/105/76	93	33	39	62	90,1	124	168/108/85	92	31	39	114	96.3	228	84	7
137/103/89	88	21	33	71	92.9	95	136/86/61	87	21	33	102	96	136	44	3
135/91/63	70	18	34	54	90	135	117/78/55	70	18	37	69	93.3	173	28	4
123/93/78	95	25	30	59	92.6	118	143/110/90	85	22	32	73	95.2	146	24	3
130/72/46	78	31	32	52	89.4	58	135/81/56	82	28	33	110	96.1	122	112	7
110/84/68	98	28	30	55	89.3	55	107/83/67	97	26	30	67	94	67	21	5
101/64/53	69	25	34	54	89.1	54	115/61/39	71	22	36	71	93.3	71	31	5
134/85/69	100	30	30	54	88.3	77	130/83/65	102	30	30	76	94	109	41	6
120/74/53	80	28	28	57	91.9	95	130/80/62	82	27	29	81	96.1	135	42	5
133/85/69	110	31	29	60	93.1	60	135/91/72	109	30	30	78	96.5	78	30	4
128/80/67	81	28	31	51	90.1	73	122/73/60	84	24	3	55	91.4	79	8	1
128/86/63	84	24	35	62	90	78	132/88/65	86	23	35	67	93.3	84	8	4
126/84/58	105	39	23	52	90.2	74	114/80/60	94	43	23	69	95.5	99	33	6
147/92/65	94	29	33	60	91	75	146/89/62	94	30	37	67	93	84	12	2
135/94/66	103	30	34	72	92.2	80	133/92/64	99	29	37	102	95.5	113	42	4
102/75/68	70	20	33	54	90.3	90	119/84/57	69	20	33	65	92.8	108	20	4
140/95/68	125	24	28	55	88.7	73	130/91/68	130	23	30	68	91.9	91	24	4
129/85/65	110	25	31	63	91.1	79	125/84/63	105	26	34	89	95.4	111	41	7
Mean ± SD
Systolic BP 130 ± 18 Mean BP 85 ± 10 Diastolic BP 65 ± 9	90 ± 14	28 ± 5	31 ± 1	59 ± 1	90.8 ± 1	83 ± 22	Systolic 130 ± 15 Mean BP 85 ± 11 Diastolic BP 64 ± 11	89 ± 14	26 ± 5	32 ± 1	79 ± 3	94.4 ± 1	110 ± 37	33.1 ± 25	4 ± 1.7

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