Creation of a Shared Medical Decision Support Tool for the Management of Abdominal Aortic Aneurysms

Abstract

ObjectivePatients with an unruptured abdominal aortic aneurysm (AAA) at the surgical threshold may benefit from aneurysmal exclusion either by open surgery or endovascular repair. A patient decision aid (PtDA) could be useful to help patients and their surgeons choose between the two techniques. The aim of this study was to develop a shared medical decision support tool, in french language, for the surgical treatment of AAA. MethodsFollowing the steps recommended by the International Patient Decision Aids Standards, we carried out a qualitative study using semi-structured interviews with patients and vascular surgeons and focus group with patients to identify their main points of interest. After analyzing the interviews using grounded theory with independent double coding, the verbatims were discussed at a steering committee, at the end of which a prototype of the tool was created. Results4 surgeons and 14 patients were interviewed. No new codes emerged from the last two interviews. At the end of the steering committee meeting, the informations selected for inclusion in the PtDA tool were the definition of an AAA, a description of the two surgical techniques (approach, duration of operation), the main complications, the peri-operative mortality rate, and post operative follow-up (length of hospital stay, monitoring frequency, risk of re-intervention). It had to be produced on a synthetic paper format, with six illustrations and a simple vocabulary. ConclusionWe developed a PtDA tool for use in a sharing decision making process with the patient during the consultation with the vascular surgeon and the general practitioner. Further studies are needed to validate the tool and to test it in clinical practice.