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  • Title: [Effects of open-heart surgery on renal function in patients with chronic renal failure--is hemodialysis during cardiopulmonary bypass really required?].
    Author: Mayumi H, Uchida T, Fukae K, Umesue M, Kohno H, Shinozaki K, Matsui K.
    Journal: Nihon Kyobu Geka Gakkai Zasshi; 1992 Oct; 40(10):1839-46. PubMed ID: 1431400.
    Abstract:
    In 300 consecutive adult patients who underwent open-heart surgery in our department, 16 patients (ischemic heart disease in 8 patients, valvular heart disease in 7 and congenital heart disease in 1) were preoperatively complicated with chronic renal failure (CRF); creatinine clearance (Ccr) < 40 ml/min and serum creatinine (Scr) > 1.6 mg/dl. The effects of open-heart surgery on renal function were studied in these CRF patients who were divided into the following 3 groups according to their preoperative Ccr values: Group 1 (6 patients), 30 < Ccr < 40 ml/min; Group 2 (5 patients), 20 < Ccr < 30 ml/min; and Group 3 (5 patients, 4 of whom were on dialysis preoperatively), Ccr < 10 ml/min. In addition, Group C (38 patients, Ccr > 50 ml/min) was set up as normal controls. Instead of hemodialysis, the extracorporeal ultrafiltration method (ECUM) was employed for all patients during the cardiopulmonary bypass (CPB). The Ccr in Group 1 showed the lowest value of 24.2 +/- 12.0 ml/min on postoperative day (POD) 0 which then recovered to the preoperative level on POD 1. This quick recovery of the Ccr in Group 1 was similar to that in Group C. In contrast, the Ccr in Group 2 showed the lowest value of 13.0 +/- 6.0 ml/min on POD 1, followed by a delayed recovery that did not reach the preoperative level until POD 5. The Ccr in Group 3 was quite low (< 5 ml/min) throughout the test period.(ABSTRACT TRUNCATED AT 250 WORDS)
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