Spontaneous breathing trial and post-extubation work of breathing in morbidly obese critically ill patients

Table 1 Characteristics of the patients

Patient	Sex	Age	SAPS II	Height	Weight	BMI	Underlying	Etiology of respiratory failure	ETT ID	MV before extubation	PSV at baseline	PEEP at baseline	Extubation failure	Outcome (D/S)
number		(years)		(cm)	(kg)	(kg/m²)	diseases	Etiology of respiratory failure	(mm)	(days)	(cmH₂O)	(cmH₂O)	(Y/N)	Outcome (D/S)
1	F	83	109	150	80	35	CHF	Small bowel ischemia	7.5	7	8	6	N	D
2	F	85	68	163	115	43	NIDDM	Pneumonia	7.5	4	15	7	N	S
3	M	64	50	170	130	44	NIDDM	Acute pancreatitis	8	3	12	8	N	S
4	F	59	60	155	95	39	None	Peritonitis	7.5	3	12	8	N	S
5	F	49	66	160	174	67	COPD, OSA	Septic shock	7.5	6	10	10	N	S
6	F	25	29	172	145	49	None	Asthma	7.5	1	10	8	N	S
7	F	54	19	153	121	51	Asthma, HTN	Post abdominal surgery	7.5	1	10	8	N	S
8	M	37	54	180	130	40	None	Acute pancreatitis	8	14	8	10	N	S
9	F	78	90	155	87	36	None	Bowel obstruction	7.5	4	8	5	N	S
10	F	49	78	167	112	41	Asthma, OSA	Peritonitis	7.5	30	8	5	N	S
11	F	73	77	150	93	41	CHF, AF	Septic shock	7.5	4	12	6	N	D
12	F	50	45	162	94	36	None	Necrotizing fasciitis	7.5	2	9	7	N	S
13	M	63	64	175	180	56	NIDDM, HTN	Small bowel bleeding	7.5	1	8	10	N	S
14	F	43	48	155	105	43	OSA, home ventilation	Pneumonia	7.5	3	12	7	N	S
15	F	77	41	155	84	36	NIDDM, HTN	Pancreatitis	7.5	7	9	7	Y	S
16	F	50	64	164	124	46	OSA, home ventilation	Post abdominal surgery	7.5	8	14	8	N	S
Mean		59	60	162	117	44	.			6	10	7
SD		17	22	9	30	8	.			7	2	2

Abbreviations: AF atrial fibrillation, BMI body mass index; CHF chronic heart failure, D deceased; ETT ID endotracheal tube internal diameter; F female; M male; HTN hypertension, mechanical ventilation; NIDDM non-insulin-dependent diabetes mellitus; OSA obstructive sleep apnoea, PEEP positive end-expiratory pressure; PSV pressure support ventilation; SAPS II Simplified Acute Physiology Score II [34]; S survived

ISSN: 1364-8535