Peep titration based on the open lung approach during one lung ventilation in thoracic surgery: a physiological study

Table 1 Patients demographic characteristics

Patient No	Age (yr)	Sex	BMI (Kg/m²)	ASA	pH	PaO₂ (mmHg)	PaCO₂ (mmHg)	FEV₁ (% Pred)	FEV₁/FVC (%)	Surgery	Duration (min)
1	60-69	2	21.6	2	7.31	73	53	42	67	Left upper lobectomy	75
2	50-59	2	19.64	4	7.43	76	43	55	67	Left upper lobectomy	65
3	60-70	2	20.83	3	7.42	82	38	65	77	Left upper lobectomy	80
4	50-60	2	22.18	3	7.42	108	24	87	88	Left upper lobectomy	70
5	60-70	2	25.75	3	7.42	81	48	50	60	Left upper lobectomy	70
6	50-60	2	16.86	2	7.38	73	43	115	108	Left upper lobectomy	60
7	50-60	2	22.05	2	7.42	89	47	98.2	77	Left upper lobectomy	85
8	50-60	1	20.83	3	7.4	73	42	42	67	Left upper lobectomy	90
9	40-50	2	25.75	3	7.41	89	50	69	78	Left upper lobectomy	95
10	70-80	2	22.41	2	7.38	84	38	96	99	Left upper lobectomy	105
11	60-70	2	23.33	2	7.38	113	40	57	107	Left upper lobectomy	110
12	60-70	1	19.39	4	7.4	97	43	82	71	Left upper lobectomy	85
13	50-60	2	26.36	2	7.45	63	49	108	114	Left upper lobectomy	90
Mean	59		22.07		7.4	86.4	42.6	86.6	82.3		83.1
SD	6.8		2.75		0.03	16.2	6.15	22.5	19.43		17.35

BMI body mass index, FEV₁ forced expiratory volume in 1 s, % pred percentage of the predicted value, FVC forced vital capacity; FiO2 during the ABG was 21%

ISSN: 1471-2253