Validity evidence of a task trainer for normal and difficult lumbar puncture: A cross-sectional study

Yu Akaishi, Yuito Okada, Jannet Lee-Jayaram, Jun Seok Seo, Toru Yamada, Benjamin Worth Berg

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Validation of the anatomically complex configurations of the Lumbar Puncture Simulator II (KYOTO KAGAKU CO., LTD., 15 Kitanekoya-cho Fushimi-ku Kyoto, Japan 612-8388) have not been reported. Previous validation of the normal anatomic configuration has been reported. This study aims to evaluate evidence for construct and content validity of 4 interchangeable lumbar puncture (LP) complex anatomic configurations of this simulator.We performed a cross-sectional study between April 2018 and May 2019. Novice volunteer medical students and expert physicians who had performed over 30 LP procedures performed sequential LP procedures on each of 4 simulated interchangeable anatomic LP puncture blocks (normal, obesity, geriatric, combined geriatric/obesity). Primary outcome measures compared between groups for each LP procedure were return of cerebrospinal fluid within 5 minutes and a calculated performance score. Subjective face validity and content validity 5-point Likert questionnaires were completed by participants.35 novice (n=19) and expert (n=16) subjects completed 140 procedures. Significant differences were found between novice and expert groups for both cerebrospinal fluid success rates and performance scores for normal (P=.001/P=.001) geriatric (P=.005/P=.002) and obesity (P=.003/P=<.001) configurations. There were no differences for the geriatric/obesity configuration. Expert median score of simulator realism (face validity) was 4 (range 3-4); median score of utility as a training tool (content validity) was 4 (range 4-5).We provide evidence for construct validity for each of the complex LP configurations, except combined geriatric/obesity. Expert physicians found the simulator sufficiently realistic to effectively teach LP skills.

Original languageEnglish
Article numbere22622
JournalMedicine (United States)
Volume99
Issue number41
DOIs
StatePublished - 9 Oct 2020

Keywords

  • construct validity
  • lumbar puncture
  • medical education
  • task trainer
  • validation

Fingerprint

Dive into the research topics of 'Validity evidence of a task trainer for normal and difficult lumbar puncture: A cross-sectional study'. Together they form a unique fingerprint.

Cite this