A Retrospective Analysis Investigating Whether Case Volume Experience of the Anesthesiologist Correlates with Intraoperative Efficiency for Joint Arthroplasty.

Alvaro A Macias, Dale N Bongbong, Ruth S Waterman, Sierra Simpson, Rodney A Gabriel

Abstract read

In one paragraph

Article in Journal of medical systems, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it

0cells of the map it votes in

1citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

Does the Case Volume Experience of the Anesthesiologist Influence the Intraoperative Efficiency at All?Journal of medical systems · 2024
Article

4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Alvaro A MaciasDivision of Perioperative Informatics, Department of Anesthesiology, University of California San Diego, 9300 Campus Point Drive, MC7770, La Jolla, CA, 92037-7770, USA.

Dale N BongbongSchool of Medicine, University of California San Diego, 9500 Gilman Dr, La Jolla, CA, 92093, USA.

Ruth S WatermanDivision of Perioperative Informatics, Department of Anesthesiology, University of California San Diego, 9300 Campus Point Drive, MC7770, La Jolla, CA, 92037-7770, USA.

Sierra SimpsonDivision of Perioperative Informatics, Department of Anesthesiology, University of California San Diego, 9300 Campus Point Drive, MC7770, La Jolla, CA, 92037-7770, USA.

Rodney A GabrielDivision of Perioperative Informatics, Department of Anesthesiology, University of California San Diego, 9300 Campus Point Drive, MC7770, La Jolla, CA, 92037-7770, USA. ragabriel@health.ucsd.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The objective of this retrospective study was to determine if there was an association between anesthesiology experience (e.g. historic case volume) and operating room (OR) efficiency times for lower extremity joint arthroplasty cases. The primary outcome was time from patient in the OR to anesthesia ready (i.e. after spinal or general anesthesia induction was complete). The secondary outcomes included time from anesthesia ready to surgical incision, and time from incision to closing completed. Mixed effects linear regression was performed, in which the random effect was the anesthesiology attending provider. There were 4,575 patients undergoing hip or knee arthroplasty included. There were 82 unique anesthesiology providers, in which the median [quartile] frequency of cases performed was 79 [45, 165]. On multivariable mixed effects linear regression - in which the primary independent variable (anesthesiologist case volume history for joint arthroplasty anesthesia) was log-transformed - the estimate for log-transformed case volume was - 0.91 (95% confidence interval [CI] -1.62, -0.20, P = 0.01). When modeling time from incision to closure complete, the estimate for log-transformed case volume was - 2.07 (95% -3.54, -0.06, P = 0.01). Thus, when comparing anesthesiologists with median case volume (79 cases) versus those with the lowest case volume (10 cases), the predicted difference in times added up to only approximately 6 min. If the purpose of faster anesthesia workflows was to open up more OR time to increase surgical volume in a given day, this study does not support the supposition that anesthesiologists with higher joint arthroplasty case volume would improve throughput.

Indexed as

AnesthesiologyArthroplasty, Replacement, KneeAnesthesia, GeneralAnesthesiologistsHumansRetrospective StudiesAnesthesiologist volumeIntraoperative efficiencyJoint arthroplastySpinal anesthesia

Identifiers

PMID37971577

DOI10.1097/00000542-200411000-00022

PMCPMC10654185

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