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Ann Thorac Surg 2009;88:1515-1519. doi:10.1016/j.athoracsur.2009.07.049
© 2009 The Society of Thoracic Surgeons
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Kazuyoshi Tajima
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Original Articles: Adult Cardiac

Simplified Management of Hemodialysis-Dependent Patients Undergoing Cardiac Surgery

Yoshiyuki Takami, MD*, Kazuyoshi Tajima, MD, Noritaka Okada, MD, Kei Fujii, MD, Yoshimasa Sakai, MD, Makoto Hibino, MD, Hisaaki Munakata, MD

Department of Cardiovascular Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan

Accepted for publication July 27, 2009.

* Address correspondence to Dr Takami, Department of Cardiovascular Surgery, Nagoya Daini Red Cross Hospital, 2-9 Myouken-cho, Showa-ku, Nagoya, 466-8650, Japan (Email: takami{at}nagoya2.jrc.or.jp).

Background: The mortality and morbidity rates are high after cardiac surgery in hemodialysis (HD)-dependent patients. To improve their outcomes, optimal perioperative managements should be discussed.

Methods: A retrospective analysis of 245 HD patients who underwent cardiac surgery between 1994 and 2007 was conducted. The basic management strategies were (1) low-potassium HD for 2 days before surgery, (2) only hemofiltration during cardiopulmonary bypass, and (3) start of regular intermittent HD on the first postoperative day. Continuous venovenous hemodiafiltration was applied only for patients with hemodynamic instability.

Results: The causes of renal failure included diabetic (n = 89, 36%), glomerulonephritis (n = 49, 20%), and unknown (n = 75, 31%). The history of HD was 9.7 ± 7.6 years. The operative procedures included coronary (n = 135), valve (n = 103), and others. The amount of intraoperative ultrafiltration was 6,123 ± 324 mL during cardiopulmonary bypass for 197 ± 67 minutes. Two hundred eight patients (85%) were managed with only intermittent HD, whereas 36 patients (15%) needed continuous venovenous hemodiafiltration. The use of continuous venovenous hemodiafiltration significantly declined during the year (26% before 2003 and 3% after 2003; p < 0.001). The amount of fluid removal on the first postoperative day was 1,297 ± 81 mL. The hospital mortality was 9.7% with the causes including infection (n = 11), cardiac events (n = 6), gastrointestinal events (n = 5), and stroke (n = 2). A multivariate logistic regression analysis revealed that selection of intermittent HD or continuous venovenous hemodiafiltration was not related to the hospital mortality.

Conclusions: Simplified management only with intermittent HD can be safely performed in most HD-dependent patients undergoing cardiac surgery.






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