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- Title
Association between intraoperative plantar regional oxygen saturation and acute kidney injury after cardiac surgery.
- Authors
Ju, Jae-Woo; Yoo, Sol Ji; Park, Dongnyeok; Bae, Jinyoung; Lee, Seohee; Nam, Karam; Cho, Youn Joung; Lee, Hyung-Chul; Jeon, Yunseok
- Abstract
Acute kidney injury (AKI) is one of the most common complications after cardiac surgery, associated with increased mortality and morbidity. Near-infrared spectroscopy (NIRS) continuously measures regional oxygen saturation(rSO2) in real-time. This exploratory retrospective study aimed to investigate the association between intraoperative plantar rSO2 and postoperative AKI in cardiac surgery patients. Between August 2019 and March 2021, 394 patients were included. Plantar and cerebral rSO2 were monitored using NIRS intraoperatively. The primary outcome was AKI within 7 postoperative days. The nonlinear association between plantar rSO2, cerebral rSO2, and mean arterial blood pressure (MBP) and AKI was assessed, and plantar rSO2<45% was related to an increased risk of AKI. Multivariable logistic regression analyses revealed that longer duration and higher area under the curve below plantar rSO2<45% and MBP<65 mmHg were more likely to be associated with increased odds of AKI. In additional multivariable regression analyses, association between plantar rSO2<45% and AKI was still maintained after adjusting the duration or AUC of MBP<65 mmHg as a covariate. Cerebral rSO2 levels were not associated with AKI. Independent of MAP, intraoperative plantar rSO2 was associated with AKI after cardiac surgery. However, intraoperative cerebral rSO2 was not associated with AKI. Intraoperative plantar rSO2 monitoring may be helpful in preventing AKI.
- Subjects
OXYGEN saturation; INTRAOPERATIVE monitoring; ACUTE kidney failure prevention; COMPLICATIONS of cardiac surgery; MULTIVARIABLE calculus
- Publication
Journal of Clinical Monitoring & Computing, 2023, Vol 37, Issue 2, p525
- ISSN
1387-1307
- Publication type
Article
- DOI
10.1007/s10877-022-00917-y