Patient-Reported Outcome Measures for Abdominal Aortic Aneurysm: A systematic review and qualitative evidence synthesis

Background: The aim was to identify and evaluate existing patient reported outcome measures (PROMs) for use in patients with an abdominal aortic aneurysm (AAA) to inform the selection for use in surgical practice. Methods: Two systematic reviews were conducted: a systematic review to identify valid, reliable and acceptable PROMs for patients with AAA and a qualitative evidence synthesis to assess the relevance to patients of the identified PROMs items. PROMs studies were evaluated for their psychometric properties using established assessment criteria and their methodological quality using the COSMIN checklist. Qualitative studies were synthesised using framework analysis and identified concepts were then triangulated using a triangulation protocol with the item concepts of the identified PROMs. Results: Four PROMs from three studies were identified in the first review; the SF-36, the Australian Vascular Quality of Life Index, the AneurysmDQoL and AneurysmSRQ. None of the identified PROMs had undergone a rigorous psychometric evaluation within the AAA population. Four studies were included in the qualitative synthesis, from which 28 concepts important to patients with an AAA were identified. The AneurysmDQoL and the AneurysmSRQ together provided the most comprehensive assessment of these concepts. Fear of rupture, control, ability to forget about the condition and size of aneurysm were all concepts identified in the qualitative studies but not covered by items on the identified PROMs. Conclusion: Further research is needed to develop PROMs that are reliable, valid and acceptable to patients for use in surgical practice for AAA.