Risk factors for the development of acute renal failure following on-pump coronary artery bypass grafting.
OBJECTIVE
To evaluate incidence, mortality, and risk factors related to the development of acute renal failure (ARF) after on-pump coronary artery bypass grafting (CABG), between January 2002 and November 2004.


METHODS
Seventy four patients who underwent on-pump CABG were analyzed retrospectively and distributed into two groups according to the development of ARF. Bivariate and multivariate analyses were performed to analyze. P < 0.05 was considered statistically significant.


RESULTS
During the period analyzed, 18 patients (24.32%) developed acute renal failure (ARF); 1 patient (1.35%), who required dialysis, died. Associated risk factors identified in-between the development of ARF was: the postoperative use of inotropic or vasoconstrictor drugs (p=0.048) and body mass index greater than 25 (p=0.004). The CPB time did not determine the ARF increase (p=0.0668).


CONCLUSIONS
The CPB time was not associated with an increased of ARF following on-pump CABG.
Pontes
José Carlos Dorsa Vieira
JC
Departamento de Clínica Cirúrgica, Universidade Federal do Mato Grosso do Sul, Avenida Senador Filinto Muller, 1. Campo Grande - MS, Brasil. carlosdorsa@uol.com.br
Silva
Guilherme Viotto Rodrigues da
GV
Benfatti
Ricardo Adala
RA
Machado
Natália Pereira
NP
Pontelli
Renato
R
Pontes
Elenir Rose Jardim Cury
ER
D058186:Acute Kidney Injury / Q000209:etiology* / Q000401:mortality; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015992:Body Mass Index; D002315:Cardiopulmonary Bypass / Q000009:adverse effects*; D002316:Cardiotonic Agents / Q000627:therapeutic use; D047549:Coronary Artery Bypass, Off-Pump / Q000009:adverse effects*; D003404:Creatinine / Q000097:blood; D005260:Female; D006801:Humans; D007668:Kidney / Q000187:drug effects; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D012189:Retrospective Studies; D012307:Risk Factors; D014662:Vasoconstrictor Agents / Q000627:therapeutic use
D002316:Cardiotonic Agents; D014662:Vasoconstrictor Agents; D003404:Creatinine