Table 1.

Characteristics of postoperative patients receiving PSV for <24 h at enrolment

Patient number	Gender	Age (years)	Predicted body weight (kg)	Comorbidity	Diagnosis	Operation	PEEP (cmH2O)	Inspiratory pressure support above PEEP (cmH2O)	FiO2
1	Male	73	69	Hypertension and diabetes	Coronary heart disease	Coronary artery bypass grafting	5	12	0.4
2	Female	56	61	–	Hysteromyoma	Abdominal hysterectomy	5	10	0.4
3	Female	68	65	Chronic cardiac dysfunction	Rheumatic heart disease, tricuspid regurgitation	Tricuspid valve replacement	5	12	0.4
4	Female	57	55	Chronic cardiac dysfunction	Rheumatic heart disease, mitral stenosis	Mitral valve replacement	5	10	0.4
5	Male	56	67	Chronic cardiac dysfunction	Senile calcific valve disease, mitral stenosis and aortic valve insufficiency	Mitral valve and aortic valve replacement	5	10	0.4
6	Male	57	72	Chronic cardiac dysfunction and Hypertension	Senile calcific valve disease, mitral stenosis	Mitral valve replacement	5	10	0.4
7	Male	72	70	Diabetes	Coronary heart disease	Coronary artery bypass grafting	6	14	0.5
8	Female	50	57	Hypertension	Left atrial myxoma	Excision of left trial myxoma	4	8	0.4

PSV: Pressure support ventilation; PEEP: Positive end-expiratory pressure.