[Off-pump coronary artery bypass grafting; its impact on renal function].
OBJECTIVE
We evaluated the impact of off-pump coronary artery bypass grafting (off-pump CABG: OPCAB) on the perioperative renal function.


METHODS
Isolated CABG was performed on 359 patients during the period from January 1999 to September 2002. Nine patients on dialysis were excluded from this study and 350 patients were divided into 2 groups: OPCAB Group (n = 214) and on-pump Group (n = 136). Perioperative serum CRE levels of the 2 groups were compared.


RESULTS
The ratio of patients with renal impairment (CRE > 1.5 mg/dl) in the OPCAB Group was 8%, which did not differ statistically from that of the on-pump Group (4%). Patients who had renal impairment postoperatively accounted for 20% of the OPCAB Group, which did not differ from that of the on-pump Group (18%). The postoperative CRE/preoperative CRE ratio was lower in the OPCAB Group (1.28) than that of the on-pump Group (1.44).


CONCLUSIONS
The renal function was preserved in the OPCAB Group compared to the on-pump Group.
Yaku
H
H
Department of Cardiovascular Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Okano
T
T
Shimada
Y
Y
Yamada
Y
Y
Hayashida
K
K
Fukumoto
A
A
Watanabe
T
T
Kitamura
N
N
D000368:Aged; D015415:Biomarkers / Q000097:blood; D002315:Cardiopulmonary Bypass / Q000009:adverse effects; D001026:Coronary Artery Bypass / Q000009:adverse effects* / Q000379:methods*; D003404:Creatinine / Q000097:blood; D005260:Female; D006801:Humans; D007668:Kidney / Q000503:physiopathology*; D007674:Kidney Diseases / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D007677:Kidney Function Tests; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies
D015415:Biomarkers; D003404:Creatinine