Perioperative medicine & outcomes

Impact of Shorter Preoperative Fluid Fasting on Patient Outcomes: A Safe Brain Initiative Retrospective Cohort Analysis

Anesth AnalgPublished Retrospective cohort study

Authors' conclusion

Adherence to a short FFT could be increased over time; however, many patients still experienced an FFT that should be considered too long. Implementation of short FFT was linked to enhanced patient outcomes and more efficient healthcare resource utilization.

Study context

Population
Adults >18 years scheduled for surgery and able to communicate, 4 hospitals in Denmark and Turkey, Safe Brain Initiative care bundle database
Participants
15,837 adults · 4 hospitals
Exposure
Short vs long preoperative fluid-fasting time
Outcome
FFT in hours and proportion of patients adherent to short FFT (2-4 hours) per month since SBI-CB initiation
Methodological detailsmulticentre, one-to-many patient matching
  • Multicentre
  • One-to-many patient matching

Main finding

As reported in the abstract

FFT and adherence to short FFT
Fluid-fasting time (FFT), median (Q1-Q3)
5 (4-8) hours
FFT, mean
6.3 hours
Adherence to short FFT (2-4 hours)
40.3%
Prolonged FFT ≥12 hours
11.9%
Correlation of Safe Brain Initiative care bundle (SBI-CB) implementation month with adherence to short FFT
r = 0.7, P < .001

Observational data: associations, not effects.

Secondary outcomes

OutcomeLog odds ratio (95% CI)P value
Postoperative delirium (recovery room)Logistic regression0.7 (0.6–0.8)P < 0.001
OutcomeMedian reduction (hours)P value
Hospital LOS (matched patients)Matched patients18.0P < 0.001

Patient-reported outcome measures (PROMs) (thirst, pain, nausea/vomiting, stress/anxiety, well-being)

All measured PROMs improved significantly, most benefits postoperatively

Original publication

Impact of Shorter Preoperative Fluid Fasting on Patient Outcomes: A Safe Brain Initiative Retrospective Cohort Analysis. Anesth Analg. Published 24 November 2025. doi:10.1213/ane.0000000000007817

Composed by AI from the published abstract and checked against it. How Briefs are made →

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