One-year results of an eHealth intervention on anxiety in patients undergoing abdominal aortic aneurysm surgery: randomized clinical trial.

Background: The longitudinal effects of educational interventions in people with abdominal aortic aneurysm are largely unexplored. This prospective study investigated whether the anxiety-lowering effect of an eHealth intervention observed at the 1-month follow-up is maintained 1 year after abdominal aortic aneurysm surgery.

Methods: Those scheduled for surgical repair of abdominal aortic aneurysm were recruited in a single-centre randomized clinical trial. The control group received care and follow-up per the institution's standard. The intervention group received an eHealth tool along with psychosocial support. The 1-month results have been reported. The primary outcome measure was the anxiety mean score (HADS-A).

Results: Of 120 included participants, 96 completed the 1-year follow-up (48 in each treatment group). The mean age was 73 years, a majority (86%) were male and 73% were current or previous smokers. Anxiety symptoms measured with the HADS-A decreased over time in both the intervention group (-0.33) and the control group (-0.35, P = 0.868). The improvements in anxiety symptoms seen in the short-term follow-up were not sustained at the 1-year follow-up. No significant mean score differences were found in the intention-to-treat or per-protocol analyses.

Conclusion: In this randomized clinical trial, an eHealth intervention did not result in a sustained reduction in anxiety symptoms compared with standard care in the same cohort. The study provides an insight into the limited acceptability of an eHealth tool in people with abdominal aortic aneurysm and valuable data on the recovery trajectory following open and endovascular abdominal aortic aneurysm surgery. Further research is warranted to evaluate the relevance and long-term effectiveness of eHealth interventions in abdominal aortic aneurysm care.

Registration number: NCT03157973 (http://www.clinicaltrials.gov).