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. 2025 Jul 25;14(15):5277.
doi: 10.3390/jcm14155277.

EVAR Trends over the Past Decade and Their Impact on Aneurysm Mortality: National Health Insurance Data Analysis

Sungsin Cho  1 , Jin Hyun Joh  1
Affiliations

EVAR Trends over the Past Decade and Their Impact on Aneurysm Mortality: National Health Insurance Data Analysis

Sungsin Cho et al. J Clin Med. .

Abstract

Background/Objectives: There are no reports about the nationwide trends in abdominal aortic aneurysm (AAA) repair and mortality rates. This study aims to evaluate the trend in AAA treatment and related mortality, including ruptured AAAs (rAAAs) and intact AAAs (iAAAs) over the last 13 years. Methods: This serial, cross-sectional study investigated the time trends in patients who were treated for an AAA and underwent an aneurysm repair between 2010 and 2022. Data from the Health Insurance Review and Assessment Service (HIRA) and Statistics Korea were used. A linear-by-linear association and Poisson regression analysis were performed to determine the changes in the treatment of AAAs and related mortality. Results: The number of patients with an rAAA increased from 462 in 2010 to 770 in 2022 (relative risk, RR 1.57; p < 0.0001). The number of patients with an iAAA increased from 3685 to 12,399 in the same period (RR 3.16; p < 0.0001). Endovascular aneurysm repair (EVAR) has been more commonly performed since 2011. During the study period, EVAR increased from 406 to 1161 (RR 2.68; p < 0.0001). Although the annual mortality rates after iAAA treatment decreased from 1.4% to 0.7% (mean mortality rate, 1.1%), the mortality rates after rAAA treatment were similar, ranging from 34.6% to 34.2%, during the study period (mean mortality rate, 35.2%). Conclusions: During the last 13 years, the annual number of patients with rAAAs and iAAAs has increased. Since 2011, EVAR has been more commonly performed. The annual iAAA-related mortality rate decreased along with the increasing trend in EVAR. However, the annual rAAA-related mortality rate did not change.

Keywords: abdominal; aortic aneurysm; endovascular aneurysm repair; mortality; open abdomen techniques.

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Conflict of interest statement

The authors declare no conflicts of interest.

Figures

Figure 1
Figure 1
Annual number of patients who were treated with ruptured and intact abdominal aortic aneurysm repairs. rAAA = ruptured abdominal aortic aneurysm; iAAA = intact abdominal aortic aneurysm; RR = relative risk; CI = confidence interval.
Figure 2
Figure 2
Annual distribution of the number of patients with abdominal aortic aneurysm by gender. (A) Ruptured AAA, (B) Intact AAA. rAAA = ruptured abdominal aortic aneurysm; iAAA = intact abdominal aortic aneurysm; RR = relative risk; CI = confidence interval.
Figure 3
Figure 3
Distribution of number of patients with abdominal aortic aneurysm by age. rAAA = ruptured abdominal aortic aneurysm; iAAA = intact abdominal aortic aneurysm.
Figure 4
Figure 4
Annual number of patients who underwent open and endovascular repair of an abdominal aortic aneurysm. OAR = open abdominal aortic aneurysm repair; EVAR = endovascular abdominal aortic aneurysm repair; RR = relative risk; CI = confidence interval.
Figure 5
Figure 5
Annual number of patients who died of ruptured and intact abdominal aortic aneurysms. rAAA = ruptured abdominal aortic aneurysm; iAAA = intact abdominal aortic aneurysm; RR = relative risk; CI = confidence interval.
Figure 6
Figure 6
Annual trends of mortality rate due to ruptured and intact abdominal aortic aneurysms. rAAA = ruptured abdominal aortic aneurysm; iAAA = intact abdominal aortic aneurysm; tAAA = total abdominal aortic aneurysm; RR = relative risk; CI = confidence interval.
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