A 5-year retrospective study of abdominal aortic aneurysm repair in a Malaysian hospital

INTRODUCTION: Prevalence and mortality due to abdominal aortic aneurysms (AAAs) have reduced; however, trends in Malaysia are difficult to determine due to the low prevalence and volume of published data. Our aim was to study current trends in AAA treatment in a national referral unit and compare them to previous reports.

MATERIALS AND METHODS: A retrospective study was conducted on all patients who had AAA repair between 2015 and 2019 in Kuala Lumpur Hospital (HKL). Operating logbooks from the study period were digitised, and details of aortoiliac aneurysm surgery were analysed. We compared these findings to a previous study on AAA treatment conducted in HKL between 1993 and 1995.

RESULTS: Over the course of 5 years, 496 abdominal aortic surgery were performed. There were 451 patients (90.9%) with AAA, whereas 41 patients (8.3%) had mycotic aneurysms. Among patients with AAA, the median age was 70 (IQR 11) and was mostly male (89.3%), whereas inlay repair was the most common technique (n = 395, 87.5%) while EVAR was employed in 36 patients (8.0%). A two proportion z test comparing emergency surgery proportions between our study cohort (56.1%) and the 1993-1995 cohort (39.3%) was significant (p = .017).

CONCLUSION: There has been a significant increase in the proportion of emergency surgery in HKL. Open surgery remains the most frequent repair technique. The increase in volume likely reflects the accessibility of healthcare, though other factors may play a role. Improvements in outcomes will benefit from research on the standard of care based on prospective data.