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KMID : 0364019920250030232
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Korean Journal of Thoracic and Cardiovascular Surgery
1992 Volume.25 No. 3 p.232 ~ p.239
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Clinical Study on Renal Replacement Therapy for Acute Renal Failure Following Cardiopulmonary Bypass
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서경필
노준량/채헌/김용진/안혁/이정열/백완기
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Abstract
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Acute renal failure is a well known serious complication following open heart surgery and is associated with a significant increase in morbidity and mortality rate.
From 1984 to 1990, 33 patients who had acute renal failure following cardiopulmonary bypass received renal replacement therapy. PD(Peritonial dialysis) was employed in 11 patients and CAVH(continous arteriovenous hemofiltration) was employed in
22
patients. Their age ranged from 3 months to 64 years(mean 25.5±7.8 years).
The disease entities included congenital cardiac anomaly in 18, valvular heart disease in 15 and aorta disease in 2 cases. Low cardiac output was thought as a primary cause of ARF except two redo valve cases who showed severe hemolysis &
depressed
renal
function preoperatively
Mean serum BUN and creatinine level at the onset renal replacement therapy were 65±8mg/dl and 3.5±0.4mg/dl respectively, declining only after reaching peak level 7-10 days following the onset of therapy.
Overall hospital mortality was 72.7%(24/33) ; 81%(9/11) in PD group and 68.2%(15/22) in CAVH group respectively.
The primary cause of death was low cardiac output & hemodynamic depression in all the cases. The fatal complications included multiorgan failure in 7, disseminated intravascular coagulation and sepsis in 6, neurologic damage in 4 and
mediastinitis
in 3
cases. No measurable differences were observed between CAVH and PD group upon consequence of acute renal failure and disease per se.
The age at operation. BUN/Cr level at the onset of bypass and highest BUN/Cr level and the consequence of low output status were regarded as important risk factors, determining outcome of ARF and success of renal replacement therapy.
Thus, we concluded that althoght the prognosis is largely determined by severity of low cardiac output status and other organ complication, early institution of renal replacement therapy with other intensive supportive measures could improve
salvage
rate in established ARF patients following CPB.
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