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May 1990

Changes in Arterial Ketone Body Ratio in the Phase Immediately After Hepatectomy: Prognostic Implications

Author Affiliations

From the Second Department of Surgery, Faculty of Medicine, Kyoto University, Japan.

Arch Surg. 1990;125(5):655-659. doi:10.1001/archsurg.1990.01410170103022

• Postoperative fluctuations of the ketone body ratio in arterial blood (acetoacetate/3-hydroxybutyrate), reflecting hepatic mitochondrial redox potential, were analyzed in 266 hepatectomized patients in relation to their prognosis. Changes in ketone body ratio were classified into the following two types: a primary decrease at the end of operation and a secondary decrease after transient recovery. Patients were classified into three groups by the primary decrease of ketone body ratio: group 1 (183 cases) with ketone body ratio above 0.7, group 2 (49 cases) between 0.7 and 0.4, and group 3(34 cases) below 0.4. Ketone body ratio was restored to above 0.7 in 2.5 ± 0.2 days (mean ± SE) in all group 2 patients. However, though it was restored within 4.5 ± 0.4 days in 26 group 3 patients, the other 8 died of multiple organ system failure in 7.4±2.8 days without recovery of ketone body ratio. This was followed by a secondary decrease in ketone body ratio to below 0.7 in 94 patients, concomitant with complications. The degree of the secondary decrease was positively correlated with that of the primary decrease. In the secondary decrease, of 42 patients with ketone body ratio below 0.4, 28 died of multiple organ failure. Total mortality was 7% in group 1,12% in group 2, and 50% in group 3. It is suggested that the primary decrease in ketone body ratio at the end of operation is a decisive factor in the prognosis for hepatectomized patients.

(Arch Surg. 1990;125:655-659)