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Intraoperative fluid management in adult spinal deformity surgery: variation analysis and association with outcomes

  • International Spine Study Group
  • Kosair Children's Hospital
  • Lenox Hill Hospital
  • University of Virginia
  • Denver International Spine Center
  • University of California at San Diego
  • Brown University
  • University of Pittsburgh
  • University of California at San Francisco
  • University of California at Davis
  • Hospital for Special Surgery - New York
  • New York University
  • Johns Hopkins University
  • Scripps Clinic
  • University of Calgary
  • Baylor Scoliosis Center
  • Swedish Medical Center
  • Washington University St. Louis
  • Toronto Western Hospital
  • Columbia University
  • Duke University
  • University of Kansas

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Purpose: To evaluate the variability in intraoperative fluid management during adult spinal deformity (ASD) surgery, and analyze the association with complications, intensive care unit (ICU) requirement, and length of hospital stay (LOS). Methods: Multicenter comparative cohort study. Patients ≥ 18 years old and with ASD were included. Intraoperative intravenous (IV) fluid data were collected including: crystalloids, colloids, crystalloid/colloid ratio (C/C), total IV fluid (tIVF, ml), normalized total IV fluid (nIVF, ml/kg/h), input/output ratio (IOR), input–output difference (IOD), and normalized input–output difference (nIOD, ml/kg/h). Data from different centers were compared for variability analysis, and fluid parameters were analyzed for possible associations with the outcomes. Results: Seven hundred ninety-eight patients with a median age of 65.2 were included. Among different surgical centers, tIVF, nIVF, and C/C showed significant variation (p < 0.001 for each) with differences of 4.8-fold, 3.7-fold, and 4.9-fold, respectively. Two hundred ninety-two (36.6%) patients experienced at least one in-hospital complication, and ninety-two (11.5%) were IV fluid related. Univariate analysis showed significant relations for: LOS and tIVF (ρ = 0.221, p < 0.001), IOD (ρ = 0.115, p = 0.001) and IOR (ρ = −0.138, p < 0.001); IV fluid-related complications and tIVF (p = 0.049); ICU stay and tIVF, nIVF, IOD and nIOD (p < 0.001 each); extended ICU stay and tIVF (p < 0.001), nIVF (p = 0.010) and IOD (p < 0.001). Multivariate analysis controlling for confounders showed significant relations for: LOS and tIVF (p < 0.001) and nIVF (p = 0.003); ICU stay and IOR (p = 0.002), extended ICU stay and tIVF (p = 0.004). Conclusion: Significant variability and lack of standardization in intraoperative IV fluid management exists between different surgical centers. Excessive fluid administration was found to be correlated with negative outcomes. Level of evidence: III.

Original languageEnglish
Pages (from-to)241-250
Number of pages10
JournalSpine Deformity
Volume13
Issue number1
DOIs
StatePublished - Jan 2025

Keywords

  • Adult spinal deformity
  • Fluid management
  • IV fluid
  • Intraoperative fluid

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