Annals of Indian Academy of Neurology
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Year : 2022  |  Volume : 25  |  Issue : 4  |  Page : 634-639

Propensity of stroke in standard versus various aortic arch variants: A 200 patients study

Department of Neurology, GMC, Kota, Rajasthan, India

Correspondence Address:
Bharat Bhushan
206, Arogya Nagar Kota, Rajasthan
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/aian.aian_710_21

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Background: Abnormal origin of arteries from the aortic arch could alter the hemodynamics. Therefore, aortic arch variations might predispose patients to atherosclerosis, which would increase the stroke risk by impending thrombus formation. Objectives: To investigate the prevalence of various types of the anatomy of the aortic arch in ischemic stroke patients and determine if aortic morphology has any effect on early-onset strokes. Materials and Methods: Observational study including 200 imaging-confirmed (Non Contrast Computed Tomography(NCCT)/magnetic resonance imaging [MRI] of the brain) acute ischemic stroke patients. This was followed by computed tomography [CT]/MRI angiography of the arch of the aorta, neck vessels, and intracranial arteries. The occurrence of various types of standard and other aortic arch variants was studied. The prevalence of stroke and its characteristics were analyzed for demographics, types, location, and the predominant side of involvement among standard arch variants and standard versus various aortic arch variants. A P value < 0.05 was considered significant. Results: Standard arch Type I was the most common (P < 0.0001). Age at stroke onset in Type 1 was 61.83 years ± 2.78 years, in Type 2 was 59.8 years ± 3.55 years, and in Type 3 was 60.96 years ± 3.56 years (P = 0.0012). Among the bovine aortic arch, age at stroke presentation in Type A was 53.33 years ± 8.35 years, in Type B was 53.36 years ± 7.4 years, and in Type C was 63.25 years ± 9.25 years (P < 0.0001). Conclusions: Standard aortic arch Type 2, bovine aortic arch Type A, and Type B are associated with an early age at stroke presentation. During routine carotid evaluation by CT or MR angiography in stroke patients, it would be better to evaluate the aortic arch as well, especially in young patients.

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