Evaluation of noninvasive positive pressure ventilation after extubation from moderate positive end-expiratory pressure level in patients undergoing cardiovascular surgery: a prospective observational study

Table 1 Characteristics of six patients weaned from invasive mechanical ventilation through application of NPPV

No.	Age	Sex	Height (cm)	Weight (kg)	Diagnosis	Operative procedure	Operation time (h and min)	SOFA score	Duration of IMV (day)	Reason for first failure	Duration of NPPV (day)
1	55	F	161	66	MR, TR	MVR, TAP	7 h and 04 min	8	8	P/F ratio <200 mmHg	2
2	72	M	166	66	Atrial fibrillation	Maze operation	6 h and 00 min	8	3	P/F ratio <200 mmHg	2
3	79	F	148	57	Angina	CABG	5 h and 47 min	7	4	P/F ratio <200 mmHg	4
4	71	M	161	52	Angina	CABG	6 h and 48 min	8	6	RR ≧30/min	2
5	63	M	170	59	Stenosis of right outflow tract	Plasty of right outflow tract	9 h and 47 min	11	8	P/F ratio <200 mmHg	3
6	85	M	160	58	Angina	CABG	3 h and 17 min	5	3	P/F ratio <200 mmHg	3

NPPV, non-invasive positive pressure ventilation; SOFA score, sequential organ failure assessment score; IMV, invasive mechanical ventilation; P/F ratio, partial pressure of arterial oxygen tension to inspiratory oxygen fraction ratio; RR, respiratory ratio; M, male; F, female; MR, mitral regurgitation; TR, tricuspid regurgitation;MVR, mitral valve replacement; TAP, tricuspid annuloplasty; CABG, coronary artery bypass grafting.

ISSN: 2052-0492