Key result
Visual estimation of intraoperative blood loss by surgeons and anesthesiologists significantly underestimated the standard calculated blood loss overall (P < 0.05).
Why the study?
Is there consistency between intraoperative blood loss recorded by surgeons, anesthesiologists, and standard calculated blood loss in patients undergoing posterior lumbar interbody fusion?
Population
200 patients who underwent posterior lumbar interbody fusion from January 2019 to December 2020 in the…
Comparison
Intraoperative blood loss recorded by surgeons… vs Standard blood loss calculated by formula
Design
Cohort
Authors
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May warrant caution with visual blood loss estimates in lumbar fusion; this cohort study leaves open prospective validation of calculated methods.
Observational (n=200)
No
Is there consistency between intraoperative blood loss recorded by surgeons, anesthesiologists, and standard calculated blood loss in patients undergoing posterior lumbar interbody fusion?
Mean Difference: 57.48
p-value: p=<0.05
Accurate recording of intraoperative blood loss requires joint assessment by surgeons and anesthesiologists, as their accuracy varies depending on the volume of blood loss.
Liu et al. (2021) conducted an observational in Lumbar spinal stenosis, lumbar spondylolisthesis, or lumbar disc herniation (n=200). Visual estimation of intraoperative blood loss by surgeons and anesthesiologists vs. Standard calculated blood loss was evaluated on Consistency between estimated intraoperative blood loss and standard calculated blood loss (Mean difference 57.48 ml (surgeons vs standard), p=<0.05). Visual estimation of intraoperative blood loss by surgeons and anesthesiologists significantly underestimated the standard calculated blood loss overall (P < 0.05).
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