Effect of atherosclerosis on 5-year risk of major vascular events in patients with transient ischaemic attack or minor ischaemic stroke: an international prospective cohort study

Lancet Neurol. 2023 Apr;22(4):320-329. doi: 10.1016/S1474-4422(23)00067-4.ABSTRACTBACKGROUND: The prevalence of atherosclerosis and the long-term risk of major vascular events in people who have had a transient ischaemic attack or minor ischaemic stroke, regardless of the causal relationship between the index event and atherosclerosis, are not well known. In this analysis, we applied the ASCOD (atherosclerosis, small vessel disease, cardiac pathology, other causes, and dissection) grading system to estimate the 5-year risk of major vascular events according to whether there was a causal relationship between atherosclerosis and the index event (ASCOD grade A1 and A2), no causal relationship (A3), and with or without a causal relationship (A1, A2, and A3). We also aimed to estimate the prevalence of different grades of atherosclerosis and identify associated risk factors.METHODS: We analysed patient data from TIAregistry.org, which is an international, prospective, observational registry of patients with a recent (within the previous 7 days) transient ischaemic attack or minor ischaemic stroke (modified Rankin Scale score of 0-1) from 61 specialised centres in 21 countries in Europe, Asia, the Middle East, and Latin America. Using data from case report forms, we applied the ASCOD grading system to categorise the degree of atherosclerosis in our population (A0: no atherosclerosis; A1 or A2: atherosclerosis with stenosis ipsilateral to the cerebral ischaemic area; A3: atheroscler...

Source: Atherosclerosis - March 17, 2023 Category: Cardiology Authors: Philippa C Lavall ée Hugo Charles Gregory W Albers Louis R Caplan Geoffrey A Donnan Jos é M Ferro Michael G Hennerici Julien Labreuche Carlos Molina Peter M Rothwell Philippe Gabriel Steg Pierre-Jean Touboul Shinichiro Uchiyama Éric Vicaut Lawrence K S Source Type: research