A new perspective during laryngo-tracheal surgery: the use of an ultra-thin endotracheal tube (Tritube®) and flow-controlled ventilation—a retrospective case series and a review of the literature

Table 2 Ventilation data of patients ventilated using Tritube and FCV with individualized settings

Patient	Tidal volume (ml/kg PBW)	Tidal volume (ml)	Respiratory rate (bpm)	Inspiration flow (L/min)	Minute volume (L/min)	Peak pressure (cmH2O)	End expiratory pressure (cmH2O)	Resistance (cmH2O/L/s)	Compliance (mL/cmH2O)	Global alveolar driving pressure (cmH2O)	FiO2	Lower SpO2 (%)	Max etCO2 (mmHg)
1	6.2	409	14	12	5.7	12	5	5.1	53	5	0.25	99	35
2	5.9	320	16	10	5.1	17	5	12.0	25	8	0.30	94	36
3	6.7	410	18	15	7.4	30	1	12.5	13	23	0.30	88	45
4	4.1	270	22	12	5.9	18	7	16.2	21	5	0.30	92	43
5	6.0	430	14	12	6.0	15	5	12.8	36	5	0.30	96	39
6	6.7	440	12	12	5.3	14	5	7.4	46	7	0.30	94	45
7	6.7	490	13	12	6.4	15	5	7.6	44	7	0.30	95	45
8	6.7	380	16	12	6.1	16	5	8.6	32	8	0.30	96	42
9	6.4	447	15	12	6.7	16	5	8.0	37	8	0.25	96	39
10	7.5	528	13	13	6.9	15	5	6.5	47	7	0.25	96	41
11	6.2	427	17	13	7.3	19	6	10.5	27	8	0.25	93	38
12	7.1	480	11	11	5.3	16	5	6.5	41	9	0.25	90	38
13	6.2	458	14	12	6.4	13	5	5.9	52	6	0.25	96	38
14	7.6	387	9	7	3.5	17	8	10.5	49	7	0.25	96	35
15	7.4	410	12	10	4.9	15	5	6.8	39	8	0.30	98	33
16	6.4	390	12	9	4.7	18	3	14.7	25	11	0.30	90	36
17	6.0	420	12	10	5.0	14	5	8.1	48	7	0.30	96	34
18	7.6	531	8	8	3.9	20	5	9.5	37	13	0.30	96	36
19	6.2	456	11	10	5.0	18	5	9.6	34	10	0.30	95	34
20	9.6	550	7	8	3.5	13	5	7.5	51	6	0.30	98	29
21	6.7	452	11	10	5.0	24	9	12.9	29	12	0.30	98	34
Median (Q1–Q3)	6.7 (6.2–7.1)	430 (409–458)	13 (11–15)	12 (10–12)	5.3 (5.0–6.4)	16 (15–18)	5 (5–5)	9.6 (7.5–12.4)	37 (29–47)	8 (7–9)	0.30	96 (94–96)	38 (35–41)

Abbreviations: PBW predicted body weight, SpO2 peripheral oxygen saturation, etCO2 end-tidal carbon dioxide, Q1 first quartile, Q3 third quartile

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