• Hideki Miyao and Yoshifumi Kotake.
• Department of Anesthesiology, Saitama Medical Center, Saitama Medical University, 1981, Kamoda, Kawagoe, Saitama, 350-8550, Japan. miyaoh@saitama-med.ac.jp.
• J Anesth. 2020 Dec 1; 34 (6): 881891881-891.

PurposeWe aimed to compare retrospectively the rates of renal morbidity and mortality in surgical patients receiving 6% HES 130/0.4 to those receiving albumin.MethodsFrom a Japanese nationwide medical database between 2014 and 2016, we identified adults who received HES 130/0.4 (HES group) or albumin (albumin group) as a single colloid solution on the day of surgery. After propensity score matching, the two groups were analyzed with χ2 or Mann Whitney U test. The primary outcome was the incidence of acute kidney injury (AKI). Secondary outcomes included the incidence of renal-replacement therapy, hospital length of stay, in-hospital 30-day mortality, the use of vasoactive agents, and the fluid requirement on the day of surgery.ResultsOf 76,048 patients in the database, propensity score matching identified 289 matched pairs. There was no statistically significant difference in the incidence of AKI between the HES and the albumin group (15.2% vs. 20.8%, respectively: P = 0.08). The secondary outcomes did not differ between groups except the following. Median hospital stay was 5 days shorter in the HES group (18 vs. 23 days; P  0.001), and the median net fluid requirement on the day of surgery was 15 mL/kg lower in the HES group (140 vs. 155 mL/kg, respectively; P = 0.01).ConclusionsPostoperative renal morbidity and mortality did not differ between patients receiving HES 130/0.4 and those receiving albumin. HES 130/0.4 was associated with shorter hospital stay and less fluid requirement compared to albumin. These findings support the use of 6% HES 130/0.4 for perioperative volume replacement as an alternative to albumin.Trial RegistrationUMIN000027896 and the date of registration was June 30, 2017 at https://www.umin.ac.jp/ctr/index-j.html .

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