A hierarchical task analysis of cricothyroidotomy procedure for a virtual airway skills trainer simulator

Am J Surg. 2016 Sep;212(3):475-84. doi: 10.1016/j.amjsurg.2015.08.029. Epub 2015 Oct 19.

Abstract

Background: Despite the critical importance of cricothyroidotomy (CCT) for patient in extremis, clinical experience with CCT is infrequent, and current training tools are inadequate. The long-term goal is to develop a virtual airway skills trainer that requires a thorough task analysis to determine the critical procedural steps, learning metrics, and parameters for assessment.

Methods: Hierarchical task analysis is performed to describe major tasks and subtasks for CCT. A rubric for performance scoring for each task was derived, and possible operative errors were identified.

Results: Time series analyses for 7 CCT videos were performed with 3 different observers. According to Pearson's correlation tests, 3 of the 7 major tasks had a strong correlation between their task times and performance scores.

Conclusions: The task analysis forms the core of a proposed virtual CCT simulator, and highlights links between performance time and accuracy when teaching individual surgical steps of the procedure.

Keywords: Cricothyroidotomy; Cricothyroidotomy simulator; Surgical education; Surgical simulator.

MeSH terms

  • Airway Management / methods*
  • Clinical Competence*
  • Computer Simulation*
  • Cricoid Cartilage / surgery*
  • Educational Measurement / methods*
  • Humans
  • Otolaryngology / education*
  • Task Performance and Analysis
  • User-Computer Interface*