Neuroanesthesia & neurocritical care
Temporal changes and predictors of perioperative blood transfusion in elective spine surgery: a retrospective analysis of a large surgical database
Authors' conclusion
Perioperative blood transfusion rate in spine surgery has declined over the past decade. The extent and duration of surgery and preoperative haemoglobin level remain important factors associated with increased odds for perioperative blood transfusion.
Study context
- Population
- US inpatients undergoing elective spine surgery, National Surgical Quality Improvement Program (NSQIP) 2011–2019
- Participants
- 251,971 inpatients
- Outcome
- Perioperative transfusion
- Follow-up
- Within 72 h of surgery
Methodological detailsNSQIP database, multivariable logistic regression, recursive partitioning
- NSQIP database
- Multivariable logistic regression
- Recursive partitioning
Main finding
As reported in the abstract
Patients receiving perioperative transfusion
6.9%
Observational data: associations, not effects.
Further findings
| Outcome | AUC (95% CI) |
|---|---|
| Predictive model (reduced model, 8 variables: operative time, preoperative haemoglobin, vertebral level, number of vertebral levels, older age, surgeon specialty, arthrodesis, year of surgery) | 0.880 (0.878–0.883) |
Transfusion rate in orthopaedic cases, 2011 to 2015
- Declined from 16.0% to 8.7%
Predictive model (reduced model, 8 variables: operative time, preoperative haemoglobin, vertebral level, number of vertebral levels, older age, surgeon specialty, arthrodesis, year of surgery)
- Longer operative time (>144 min) and more vertebral levels more strongly associated with transfusion than surgical specialty after adjustment
Prevalence of anaemia
- Anaemia prevalence, not substantially declined
- 15%
Original publication
Composed by AI from the published abstract and checked against it. How Briefs are made →