Lipid management for primary and secondary stroke prevention consensus paper of the International Lipid Expert Panel (ILEP)

Ischemic stroke is a significant global health challenge, accounting for approximately 66 % of all strokes worldwide. Recent data indicates that stroke was the third leading cause of death (10.7 % of all deaths), following ischemic heart disease and COVID-19. In 2021, nearly 94 million people were living with the consequences of a stroke, and about 12 million new cases were reported. Major risk factors for stroke include high systolic blood pressure, exposure to ambient particulate matter, smoking, and elevated levels of low-density lipoprotein cholesterol (LDL-C), with LDL-C contributing to nearly one-third of all ischemic strokes. In primary prevention, many at-risk individuals have undiagnosed or poorly managed lipid disorders, including elevated lipoprotein(a). The challenge persists in secondary prevention, where up to 40 % of individuals at risk of recurrent ischemic stroke experience a recurrence within five years. A key reason for this is the inadequate diagnosis and management of lipid disorders, underscoring the necessity for early and intensive (upfront) combination lipid-lowering therapy (LLT) to meet treatment goals promptly after an event. Unfortunately, data indicates that up to 40 % of post-stroke patients receive no LLT, and many more receive inadequate treatment. Additionally, existing guidelines for LLT in both primary and secondary stroke prevention are often inconsistent and outdated. Similarly, the understanding of the effects of LDL-C and LLT on the risks of haemorrhagic stroke and dementia remains limited, emphasizing the need for clear and practical guidance. Thus, within this Consensus Paper we aimed to provide consistent, easy-to-follow, and practical guidance on lipid targets, along with clear pathways for effectively treating patients with lipid disorders who are at risk for stroke and those who have experienced one. This approach is intended to help reduce the risk of recurrent ischemic strokes and their associated complications.