EVREN MÜGE TAŞDEMİR METE, UĞUR KISA, MURAT BAŞTOPÇU
Turkish Journal of Vascular Surgery - 2022;31(2):98-102
Objectives: In this study, we aimed to investigate the relationship between the diameter of the abdominal aorta with inferior mesenteric artery (IMA) occlusion and intraluminal thrombus (ILT) thickness, as well as the relationship between IMA occlusion and ILT diameter in patients with an abdominal aortic aneurysm (AAA). Patients and methods: This retrospective study was conducted with 599 AAA patients (515 males, 84 females; mean age: 70.4±9.7 years; range, 26 to 96 years) between January 2015 and December 2020. The patients were grouped according to IMA occlusion. There were 169 (28.2%) patients with an occluded IMA (Group A) and 430 (71.8%) patients with a patent IMA (Group B). Results: No correlation was found between aneurysm diameter and IMA occlusion. Intraluminal thrombus was more frequent in patients with IMA occlusion than in those without an occlusion (p=0.002). The ILT diameter was found to be extended in Group A (p<0.001). There was a significant positive correlation between AAA diameter and ILT diameter (tb=0.389; p<0.001). Conclusion: Inferior mesenteric artery occlusion was not related to AAA diameter but was more frequently detected with increased ILT thickness/AAA diameter ratio. The increase in the aneurysm diameter is not associated with IMA occlusion. Future studies on ILT progression can better reveal the role of ILT on the pathogenesis of IMA occlusion.
