Critical Care Research and Practice

Clinical Study

Effects of Neuromuscular Electrical Stimulation of the Quadriceps and Diaphragm in Critically Ill Patients: A Pilot Study

Table 2

Comparison of the variables analyzed between groups.


Variables	CG ()	DG ()	QG ()

Sedation (hours)	7.6 ± 4.64	11.5 ± 10.55	12.2 ± 11.25	0.3248
MV duration (hours)	15.8 ± 5.75^a	27.5 ± 12.16^b	23.3 ± 10.61^b	0.0001
ICU length of stay (days)	12.8 ± 7.83	12.4 ± 4.45	9.7 ± 4.92	0.0998
Hospital length of stay (days)	25.4 ± 12.04^a	29.3 ± 13.59^a	18.2 ± 11.28^b	0.0031
Minute volume (L/min)	9.8 ± 5.4	11.7 ± 5.2	10.3 ± 4.7
Last minute volume (L/min)	11.9 ± 3.9	14.1 ± 6.9	12.8 ± 5.1	0.995
Minute volume (L/min), ext. day	13.1 ± 7.4	15.2 ± 7.2	13.2 ± 5.9
First MIP (cmH₂O)	−24.6 ± 14.13^a	−23.2 ± 10.88^a	−21.7 ± 11.68^a
Last MIP, ICU discharge (cmH₂O)	−25.9 ± 9.59	−37.9 ± 10.31^b	−40.4 ± 8.71^b	0.00003
MIP, extubation day (cmH₂O)	−25.9 ± 9.79	−29.1 ± 15.33	−30.8 ± 10.7
First RSBI (rpm/l)	57.9 ± 40.42	43.2 ± 18.29	54.0 ± 34.15
Last RSBI, ICU discharge (rpm/l)	52.1 ± 28.85	35.9 ± 14.17	48.9 ± 32.4	0.88708
RSBI (rpm/l), extubation day	53.6 ± 20.96	44.0 ± 19.45	56.9 ± 28.57
First MRC	36.2 ± 5.55^a	32.7 ± 7.22^a	33.2 ± 8.47^a
				0.00044
Last MRC, ICU discharge	43.4 ± 6.45^b	41.8 ± 11.14^b	48.2 ± 11.48^b
Barthel	15.8 ± 14.04^a	23.8 ± 24.97^a	40.6 ± 30.08^b	0.0049
FSS-ICU	14.6 ± 8.01^a	21.5 ± 10.16^a	29.1 ± 12.38^b	0.001
In-bed transfers	2.2 ± 1.48^a	3.2 ± 1.60	4.5 ± 2.00^b	0.0003
Supine-to-sit transfer	2.0 ± 1.41^a	3.1 ± 1.55	4.3 ± 1.86^b	0.0001
Sitting at the bedside	2.4 ± 1.65^a	3.5 ± 1.54	4.8 ± 1.83^b	0.001
Unsupported sitting	3.6 ± 1.71^a	4.8 ± 1.57	5.2 ± 1.75^b	0.0037
Locomotion	1.1 ± 1.33^a	2.3 ± 1.85	3.6 ± 2.33^b	0.0001
GCS, ICU discharge	13.0 ± 1.64	12.7 ± 1.92	13.2 ± 1.87	0.5480

CG: control group; DG: diaphragm group; QG: quadriceps group; MV: mechanical ventilation; ICU: intensive care unit; Ext.: extubation; MIP: maximal inspiratory pressure; RSBI: Rapid Shallow Breathing Index; FSS-ICU: Functional Status Score for the ICU; MRC: Medical Research Council; GCS: Glasgow Coma Scale. Values are expressed as mean ± SD (). Different letters represent which group has statistical difference.