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Table 1 Comparison between patients with successful and failed weaning as regards traditional weaning indices and new diaphragmatic parameters

From: The role of diaphragmatic ultrasound as a predictor of successful extubation from mechanical ventilation in respiratory intensive care unit

Variables Successful weaning (n = 60) Failed weaning (n = 20) p
Traditional weaning
 TV (mL/kg) 435 (420–458.8) 450 (420–460) 0.4$$
 PaO2/FIO2 206 (197.3–211.8) 190 (185–199.8) < 0.001$$
 RR 16 (15–17) 18 (17–19) < 0.001$$
 MV (L/m) 6.83 0.71 7.31 0.77 0.01$
 RSBI 58 (52–63) 46 (41–51) 0.005$$
During tidal breathing
 DT Insp mm 24 (23.25–26) 18 (17–19.15) < 0.001$$
 DT Expt(FRC) mm 17 (15–18) 14 (12.3–15) < 0.001$$
 DTF% 44.41 (35.07–67.12) 30.38 (23.34–38.07) < 0.001$$
 DE in cm 1.95 (1.53–2.75) 1.66 (1.09–1.94) 0.003$$
During deep breathing
 DT Insp (TLC) mm 36.5 (33–39.75) 26 (23.25–29.75) < 0.001$$
 DT Exp (RV) mm 25 (22–27) 20.5 (18–22.75) < 0.001$$
 DTF % 50 (43.05–58.2) 25 (23.8–26.99) < 0.001$$
 DE in cm 3.6 (3–5.4) 2.95 (1.73–4.05) 0.01$$
  1. Numerical data is represented as mean and SD or median and IQR. N number, SD standard deviation, IQR interquartile range. $Independent t-test, $$Mann-Whitney test, p is considered significant if < 0.05