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Table 4 Haemodynamics before bronchoscopy, after bronchoscopy and in the PACU

From: Incidence of oxygen desaturation using a high-flow nasal cannula versus a facemask during flexible bronchoscopy in patients at risk of hypoxemia: a randomised controlled trial

 

HFNC Group

(n = 87)

Facemask Group

(n = 89)

P value

Before bronchoscopy

Mean BP (mmHg)

Heart rate (bpm)

Oxygen saturation (%)

During bronchoscopy

Lowest oxygen saturation (%)

107.0 ± 13.5

80.2 ± 16.0

99 (97 to 100)

100 (98 to 100)

111.3 ± 38.7

77.2 ± 15.3

99 (98 to 100)

94 (89 to 100)

0.330

0.206

0.036

< 0.001

After bronchoscopy

Mean BP (mmHg)

Heart rate (bpm)

Oxygen saturation (%)

90.7 ± 15.0

83.2 ± 13.2

100 (99 to 100)

93.7 ± 15.3

80.8 ± 13.8

100 (99 to 100)

0.185

0.236

0.064

In PACU

Mean BP (mmHg)

Heart rate (bpm)

Oxygen saturation (%)

91.0 ± 38.7

74.9 ± 12.6

100 (99 to 100)

88.2 ± 11.7

74.4 ± 12.0

99 (98 to 100)

0.512

0.782

0.005

  1. Data are presented as the means ± standard deviations or medians (interquartile ranges)
  2. Abbreviations: BP: blood pressure; PACU: postanesthesia care unit