Fiber optic bronchoscopy in patients with acute hypoxemic respiratory failure requiring noninvasive ventilation - a feasibility study

Table 2 Cardiorespiratory parameters, values given as mean ± SD

	Baseline	End of bronchoscopy	15 minutes	30 minutes	45 minutes	60 minutes	120 minutes
Heart rate (beats/ minute)	99 ± 18	97 ± 17	97 ± 17	97 ± 17	95 ± 18	94 ± 18	92 ± 17
MAP (mm Hg)	88 ± 18	81 ± 17	83 ± 17	86 ± 17	84 ± 18	84 ± 14	83 ± 14
Respiratory rate (breaths/min)	27 ± 7	27 ± 8	30 ± 10	29 ± 9	28 ± 7	28 ± 8	27 ± 8
PaO₂/ FiO₂	176 ± 54	240 ± 130 ^a	242 ± 99 ^a	215 ± 76 ^c	207 ± 70	199 ± 68	210 ± 79
PaCO₂ (mm Hg)	43 ± 14	53 ± 16 ^a	50 ± 15 ^a	47 ± 14 ^c	45 ± 13	44 ± 12	42 ± 13
pH	7.37 ± 0.09	7.30 ± 0.08 ^a	7.31 ± 0.07 ^a	7.34 ± 0.08 ^b	7.35 ± 0.09	7.36 ± 0.09	7.37 ± 0.08

^a: P < 0.001 compared to baseline
^b: P < 0.01 compared to baseline
^c:P < 0.05 compared to baseline
MAP, mean arterial pressure; FiO₂, fraction of inspired oxygen; PaCO₂, partial pressure of carbon dioxide in the arterial blood; PaO₂, partial pressure of oxygen in the arterial blood

ISSN: 1364-8535