Learning curves for ultrasound guided lung biopsy in the hands of respiratory physicians

Christian Laursen, Therese Maria Henriette Naur, Uffe Bodtger, Lars Konge, Daniel Pilsgaard Henriksen, Sara Colella, Matiullah Naqibullah, Valentina Minddal, Jesper Rømhild Davidsen, Niels Christian Hansen, Ole Graumann, Paul Frost Clementsen

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskning


Background: The aim of this study was to determine learning curves for ultrasound guided transthoracic needle biopsies (US-TTNB) performed by respiratory physicians after implementation at three different centers.Methods: During January 2012 to August 2014 patients were included if they had a registered US-TTNB procedure at any of the three centers. The US-TTNB was defined as being successful if the result was diagnostic and otherwise as being unsuccessful. Histology or cytology results and clinical follow-up were used as a reference tests. The learning curves for physicians having performed at least 10 procedures were calculated using Cusum analysis. Acceptable and unacceptable failure rates were designated as being 20% and 40 respectively.Results: A total of nine respiratory physicians having performed at least 10 US-TTNB procedures were identified. The Cusum curves for each physician are depicted in figure 1. Six of the physicians had learning curves with a relatively downward or stable projection as a sign of developing competence. Three physicians, however, had learning curves with an upward projection indicating unacceptable competence in performing the procedure.Conclusion: The learning curves for US-TTNB indicate that competency in the procedure is not a given thing among respiratory physicians. Cusum score analysis could serve as a clinical tool to identify physicians needing additional training in the procedure.
StatusUdgivet - 2016