Evaluation of Aneurysm Cases Undergoing Surgery at a Tertiary Center in Iran: A 22-year Retrospective Study

Background and AimsAn arterial aneurysm is characterized by a localized expansion of a blood vessel relative to its original dimensions. Specifically, an abdominal aortic aneurysm (AAA) is identified as an aortic diameter measuring at least one and a half times the standard diameter at the renal artery level, approximately equivalent to 2.0 cm. In this study, we aim to evaluate the prevalence of AAA, along with the clinical features, trend, and incidence of ruptured AAA among patients undergoing surgery in our center.MethodsThe database of patients operated in Namazi Hospital from 2000 to 2021 was retrieved and patients undergoing vascular surgeries due to aneurysm were reviewed. All data were analyzed with SPSS version 26.0.ResultsA total of 599 cases of aneurysm were operated, among which 334 were contributed to the aorta and included in our study. The average age of the participants was 69.6 (SD: 12.1, range 16-93) years and 161 (85.2%) were male. The majority of cases were in the 60 to 80 years age group (n = 205; 62.5%). There was a significant association between the age groups and the AAA rupture (p = 0.003), with the highest occurrence among the above 80 years age group (n = 37, 49.3%). Regarding the location of the aneurysm, 274 were located in the infrarenal and abdominal region, 21 in the thoracoabdominal region, and 12 in the thoracic region. Among the cases in our study, 112 were cases of ruptured aneurysms. Furthermore, the age of patients with ruptured aneurysm were significantly higher compared to non-ruptured patients (71.8 vs. 68.5; p = 0.019).ConclusionWe observed an increase in the incidence of AAA surgeries in our center throughout the years, with the population growing towards younger population, while the incidence of rupture increasing towards older age groups.