Contrast-enhanced ultrasound to evaluate changes in renal cortical perfusion around cardiac surgery: a pilot study

Table 1 Patients' characteristics

Patient number	Body weight, Kg	Operation	CPB duration	LVEF	APACHE III score	VasoC	Diuretics	Baseline GFR, ml/min^a	RIFLE score	Hospital length of stay, days
1	123	CABG	79	>60%	48	N	Y	142	I	8
2	101	CABG	104	>60%	36	Y	N	87	0	7
3	107	AVR + CABG	207	40%	45	Y	N	152	R	7
4	80	MVR	130	>60%	38	Y	N	98	0	32
5	76	AVR + CABG	226	20%	68	Y	Y	47	R	62
6	83	MVR + TVR	119	>60%	59	Y	Y	47	0	8
7	81	CABG	86	>60%	40	N	N	59	0	8
8	78	AVR	114	40%	32	N	N	120	0	15
9	81	CABG	69	40%	71	Y	N	59	0	15
10	78	CABG	No CPB	>60%	54	N	N	113	0	11
11	79	CABG	90	>60%	56	Y	N	52	0	11
12	106	AVR + CABG	151	>60%	74	Y	Y	86	R	18

^aCalculated with the Cockroft-Gault equation. CPB, cardiopulmonary bypass; CABG, coronary arteries bypass graft; AVR, aortic valve replacement; MVR, mitral valve replacement; TVR, tricuspid valve replacement; LVEF, left ventricular ejection fraction; APACHE, Acute Physiology and Chronic Health Evaluation; RIFLE: risk, injury, failure, loss and end-stage renal failure; VasoC, vasoconstrictors (Y, yes; N, no); GFR, glomerular filtration rate.

ISSN: 1364-8535