Safety, quality & education

The impact of a medically directed student registered nurse anesthesia staffing model on Postprocedural patient outcomes

J Clin AnesthPublished Retrospective cohort study

Main findingResult — go to the resultRelative risk 1.02 95% CI 0.94–1.11

Authors' conclusion

Among 30,730 patients undergoing inpatient surgery at a single hospital, findings were inconclusive regarding whether exclusive medically directed SRNAs as in-room providers were noninferior to other providers.

Study context

Population
Adults (≥18 years) undergoing inpatient surgery 2000–2017 at a tertiary academic medical centermatched cohort
Participants
30,730 adults
Exposure
SRNA vs certified registered nurse anesthetists (CRNAs), residents and/or fellows
  • SRNAn = 15,365
  • CRNAs, residents and/or fellowsn = 15,365reference
Outcome
Composite of:
  • Postoperative in-hospital mortality
  • Six categories of major morbidities (infectious, bleeding, serious cardiac, gastrointestinal, respiratory, urinary complications)
Methodological detailspropensity-score matched, single-centre, non-inferiority
  • Propensity-score matched
  • Single-centre
  • Non-inferiority

Main finding

As reported in the abstract

Relative risk

1.02

95% CI 0.94–1.11

P = 0.07

By group

SRNA vs CRNAs, residents and/or fellows
RR 1.02 (95% CI 0.94–1.11); P = 0.07

Observational data: associations, not effects.

Secondary outcomes

OutcomeSRNACRNAs, residents and/or fellowsRR (95% CI)P value
In-hospital mortalityNoninferior0.8%1.0%0.75 (0.59–0.96)P < 0.001

Original publication

The impact of a medically directed student registered nurse anesthesia staffing model on Postprocedural patient outcomes. J Clin Anesth. Published 15 February 2024. doi:10.1016/j.jclinane.2024.111413

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