Evaluation of regional ventilation by electric impedance tomography during percutaneous dilatational tracheostomy in neurocritical care: a pilot study

Table 2 Parameters in eleven patients in percutaneous dilatational tracheostomy

Time	Modes	MV l/min	Ppeak cm H₂O	VT ml	PEEP cm H₂O	C static ml/cmH₂O	FiO₂%	SpO₂%	EtCO₂ torr
T − 1	ASV	10.25 ± 2.62	16.27 ± 3.19	546.91 ± 90.67	5.09 ± 0.29	80.82 ± 32.56	0.41 ± 0.04	97.45 ± 3.00	36.95 ± 4.46
T 1	DuoPAP	10.25 ± 2.20	15.91 ± 4.14	564.45 ± 79.29	5.09 ± 0.29	78.36 ± 41.83	1.00 ± 0.00	98.18 ± 1.95	36.48 ± 5.44
T 2	ASV	10.24 ± 2.33	15.55 ± 3.77	535.45 ± 150.00	5.36 ± 0.88	80.91 ± 37.05	0.45 ± 0.12	97.27 ± 2.34	36.89 ± 4.68
T 3	ASV	10.07 ± 2.29	15.18 ± 4.37	571.82 ± 141.77	5.36 ± 0.88	102.18 ± 49.28	0.44 ± 0.10	98.18 ± 1.59	36.55 ± 3.87
T 4	ASV	9.92 ± 2.03	15.27 ± 3.98	568.45 ± 95.56	5.36 ± 0.88	92.64 ± 35.34	0.42 ± 0.07	98.00 ± 1.95	35.32 ± 3.52
T 5	ASV	13.96 ± 2.62	15.18 ± 4.02	555.64 ± 125.64	5.27 ± 0.62	94.64 ± 31.83	0.42 ± 0.06	98.00 ± 2.17	35.05 ± 2.92
T 6	ASV	10.59 ± 2.33	15.09 ± 4.06	600.18 ± 125.39	5.27 ± 0.62	92.00 ± 31.46	0.42 ± 0.06	97.45 ± 2.57	34.57 ± 4.01
T 7	ASV	10.05 ± 1.95	15.00 ± 3.93	558.00 ± 118.00	5.27 ± 0.62	83.00 ± 32.32	0.42 ± 0.06	98.18 ± 2.04	33.95 ± 3,63
T 8	ASV	10.56 ± 1.70	15.64 ± 3.47	555.18 ± 106.69	5.27 ± 0.62	85.91 ± 33.41	0.40 ± 0.03	97.73 ± 2.05	33.95 ± 4.83

T-1 - one hour before percutaneous dilatational tracheostomy (PDT), T1 during PDT, T2-8 hourly intervals, Mean ± Standard deviation, ASV Adaptive support ventilation, DuoPAP Duo Positive Airway Pressure, MV Minute ventilation, Ppeak Peak pressure, VT Tidal volume, C Compliance, FiO₂ Fraction of inspired oxygen, EtCO₂ End-tidal carbon dioxide concentration, SpO₂ Pulse oximetry, EIT Electric impedance tomography

ISSN: 1471-2377