MP294
RENAL FUNCTION IN EARLY POSTOPERATIVE PERIOD REGARDING TO SURGICAL TECHNIQUES FOR ABDOMINAL AORTIC ANEURYSM REPAIR Free

INTRODUCTION AND AIMS: Acute kidney injury is a common complication of abdominal aortic aneurysm surgical treatment. Endovascular procedure has become more often used surgical technique in past a few years. Aim of our study was to analyze the influence of surgical techniques for abdominal aortic aneurysm repair on renal function in early postoperative period.

METHODS: This prospective study included 227 patients who needed elective treatment of abdominal aortic aneurysm. Open surgery (OS) technique was performed in 146 patients and 81 patients were treated by endovascular aortic repair (EVAR). There was no difference on gender distribution between these two groups, and male were dominant (89.7% and 93.8%, respectively). Clinical and laboratory parameters were obtained during the early postoperative period.

RESULTS: Patients in OS group were younger (67±7.1 vs. 71±7.0, p<0.001) and had better left ventricular ejection fraction ( 52.6±10.4% vs. 4.4±16.1%, p=0.001) compared to patient in EVAR group. There was no difference in prevalence of chronic kidney disease (21.2% vs 21.0%, p=0.992) and eGFR before treatment (78.1±32.4ml/min vs. 77.8±30.7ml/min, p=0.940) between these groups. Patients treated with OS had more abundant bleeding than patient with EVAR (1300ml vs. 325ml, p<0.001). Diuresis was better in OS group compared to EVAR group during the first three days after surgical intervention (1. day - 2649±769.5ml vs. 2030±554.1ml, p<0.001; 2. day - 2527±790.9ml v.s. 1971±505.3ml, p=0.003; 3. day - 2508±823.6ml vs. 2070±529.8ml, p=0.049). Patient treated with OS had higher eGFR on second and third postoperativ day compared with patient treated with EVAR (82±36.5ml/min vs. 64±31.7ml/min, p=0.003; 85±40.3ml/min vs. 71±34.6ml/min, p=0.048, respectively).

CONCLUSIONS: There is influence of surgical techniques on renal function in early postoperative period for abdominal aortic aneurysm repair. EAVR brings higher risk for decreasing renal function compared to OS technique.