[Postoperative renal failure and its risk factors after open heart surgery].
OBJECTIVE
In this retrospective study the authors have investigated the occurrence and the possible risk factors of renal failure following heart surgery on CPB.


METHODS
52 perioperative variables of 536 consecutive patients undergoing cardiac surgery have been analysed. Types of surgery were as follows: coronary-bypass: 266 (49.6%), combined coronary-bypass: 62 (11.5%), valve replacement: 171 (31.9%), adult repair of congenital: disease 24 (4.4%), aortic dissection: 6 (1.1%), others 7 (1.3%). In the past medical history those patients involved in the study chronically impaired renal function could be found in 2.2%, whilst kidney stone and chronic pyelonephritis appeared in 2.4% and 1.2% respectively. Postoperative renal failure developed in 31 patients (5.8%), 3 of them required haemodialysis (0.6%). For the statistical analysis chi 2 test, t-test, Levine-test, Mann-Whitney-test and logistic regression analysis were applied using the SPSS software.


RESULTS
On the basis of the performed multivariable logistic regression analysis the risk factors of renal failure following open heart surgery are as follows: age, duration of anaesthesia, chronic pyelonephritis in past medical history, preoperative serum creatinine level and low cardiac output syndrome.
Feiler
Erzsébet
E
Zala Megyei Kórház, Szívsebészeti Osztály.
Gombocz
Károly
K
Wrana
Gyözö
G
Varró
Margit
M
Boronyák
Agnes
A
Alotti
Nasri
N
D006348:Cardiac Surgical Procedures / Q000009:adverse effects*; D003404:Creatinine / Q000097:blood*; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D006435:Renal Dialysis; D051437:Renal Insufficiency / Q000097:blood / Q000209:etiology* / Q000628:therapy; D012307:Risk Factors
D003404:Creatinine