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

The Egyptian Journal of Bronchology

Table 3 Comparison between COPD patient (control) and patient with failed weaning in the pulmonary group (B)

Variables	Failed weaning (n = 11)		COPD (n = 40)		p^$
During tidal breathing
DT Insp mm	18.12	16.5	36.1	69	< 0.001
DT Expt (FRC) mm	13.79	16.4	31.8	88	< 0.001
DTF%	39.20	22.10	39.50	23	0.04
DE in cm	1.52	0.55	2.36	56	< 0.001
During deep breathing
DT Insp (TLC) mm	28.27	56.6	55.3	57	< 0.001
DT Exp (RV) mm	22.45	42.5	31.3	44	< 0.001
DTF %	25.33	2.43	71.00	2.780	< 0.001
DE in cm	2.95	1.24	3.74	1.35	0.04

Numerical data is represented as mean and SD, N number, SD standard deviation, ^$independent t-test, p is considered significant if < 0.05