PMID: 25764612Mar 15, 2015Paper

Low urine output during the first twenty-four hours after total knee arthroplasty

Journal of the Medical Association of Thailand = Chotmaihet Thangphaet
Yutthana Khanasuk, Aree Tanavalee

Abstract

Low urine output (LUO) for six hours is defined as the stage that is at risk of acute renal failure. Major surgeries with a bloodless field, such as total knee arthroplasty (TKA), may be associated with LUO; however; there has been no study addressing this point. The present study evaluated the incidence of LUO and the effect of fluid balance on LUO in TKA patients during the first 24 hours after surgery. The authors retrospectively evaluated 257 uncomplicated patients undergoing unilateral TKA during the first 24 hours after surgery. Patients' demographic data, intra-operative intravenous (IV) fluid replacement, postoperative IV fluid replacement, oral fluid intake, total fluid intake, postoperative urine output, blood collected from the drain, and the total visible fluid output during the first 24 hours after surgery were collected and evaluated. The incidence of LUO was 19.1% (49/257) in the studied group. There were no significant differences in patients' demographic data between the LUO and normal urine output (NUO) groups. Comparing the LUO and NUO groups, the LUO group had a lower volume of intra-operative fluid replacement, with statistical significance. There were no differences in postoperative IV fluid replacement an...Continue Reading

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