Does sodium bicarbonate infusion really have no effect on the incidence of acute kidney injury after cardiac surgery? A prospective observational trial

Table 7 Incidence of AKI in the control group and the NaHCO ₃ group according to the surgical procedure

Surgery type	AKIN	Control group		NaHCO ₃ group			Free hemoglobin
		Number	%	Number	%	P -value	Median	IQR
CABG	AKIN 0	40	48.2	65	65.7	0.0261	43.5	32, 62
	AKIN >0	43	51.8	34	34.3	0.0261	43.5	32, 62
Valve	AKIN 0	18	58.1	15	68.2	0.6447	54	37.25, 66.25
	AKIN >0	13	41.9	7	31.8	0.6447	54	37.25, 66.25
CABG + valve	AKIN 0	10	43.5	9	52.9	0.7885	60	49.5, 78.5
	AKIN >0	13	56.5	8	47.1	0.7885	60	49.5, 78.5
Other	AKIN 0	16	51.6	23	63.9	0.4428	57	42, 78
	AKIN >0	15	48.4	13	36.1	0.4428	57	42, 78

In the subgroup of coronary artery bypass graft (CABG) surgery patients, the acute kidney injury (AKI) incidence was reduced significantly when patients were treated with sodium bicarbonate. The median concentrations and IQRs of free hemoglobin for each subgroup are also presented. AKIN, Acute Kidney Injury Network classification.

ISSN: 1364-8535