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Table 2 Right diaphragmatic function and respiratory parameters at T1 in patients with LUS ≥ 14 and those with LUS < 14

From: Influence of lung aeration on diaphragmatic contractility during a spontaneous breathing trial: an ultrasound study

 Overall
(n = 49)
LUS < 14
(n = 16)
LUS ≥ 14
(n = 33)
P value
R-DE (cm)1.2 (0.9 to 1.7)1.5 (1.0 to 1.7)1.2 (0.9 to 1.5)0.495
R-TEI (mm)1.9 (1.6 to 2.3)1.9 (1.5 to 2.2)1.9 (1.7 to 2.5)0.502
R-TEE (mm)1.6 (1.3 to 1.9)1.6 (1.3 to 1.8)1.6 (1.4 to 1.9)0.669
R-DTF (%)21.8 (14.5 to 29.7)14.8 (10.2 to 27.0)22.2 (17.1 to 30.9)0.035
PaO2 (mmHg)97 (78 to 136)112 (79 to 144)96 (76 to 118)0.501
PaCO2 (mmHg)37 (34to 40)37 (32 to 41)37 (35 to 39.0)0.991
Frequency (breaths/min)22 (18 to 25)23 (19 to 25)20 (18 to 25)0.396
  1. Data are expressed as median and 25–75% IQR. T1 = 30 min after the start of spontaneous breathing trial
  2. LUS lung ultrasound aeration score, R right, DE diaphragm excursion, TEI diaphragm thickness at end-inspiration, TEE diaphragm thickness end-expiration, DTF diaphragmatic thickening fraction, Frequency respiratory rate