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Heart disease and dementia interlinked points risk factors; finds AAN Study - Video

Published On 2022-04-25T15:47:27+05:30  |  Updated On 25 April 2022 3:47 PM IST
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Overview

Dementia is the most troublesome problem, according to research published in April 20th, 2022, online issue of Neurology, the medical journal of the American Academy of Neurology, some people who accumulate risk factors like high blood pressure, diabetes, obesity, and smoking over time, which are mainly categorized as cardiovascular risks, are also susceptible to develop cognitive decline, dementia, and Alzheimer's disease.

A new study suggests that people who accumulate these risk factors over time, at a faster pace, have an increased risk of developing Alzheimer's disease dementia or vascular dementia, compared to people whose risk factors remain stable throughout life.
The study looked at 1,244 people with an average age of 55 who were considered healthy in terms of cardiovascular health and memory skills at the start of the study. Participants were given memory tests, health
examinations, and completed lifestyle questionnaires every five years for up to 25 years. Of all participants, 78 people, or 6%, developed Alzheimer's disease dementia during the study and 39 people, or 3%, developed dementia from vascular disease.
Cardiovascular disease risk was determined by using the Framingham Risk Score which predicts the 10-year risk of a cardiovascular event. It looks atfactors including a person's age, sex, body mass index (BMI), blood pressure, and whether they smoke or have diabetes. Participants started the study with an average 10-year risk of between 17% and 23%.
Researchers determined who had an accelerated cardiovascular disease risk by comparing participants to the average progression of cardiovascular disease risk. Researchers found that cardiovascular disease risk remained stable in 22% of participants, increased moderately over time in 60%, and rose at an accelerated pace in 18% of people.
People in the study with stable cardiovascular disease risk had an average 20% risk of a cardiovascular event over 10 years throughout the study, while those with a moderate increased risk went from 17% to 38% over the course of the study and those with an accelerated risk went from a 23% to 62% increased risk by the end of the study.
Researchers determined that when compared to people with a stable cardiovascular disease risk, people with an accelerated cardiovascular disease risk had a three to six times greater chance of developing Alzheimer's disease dementia and a three to four times greater risk of developing vascular dementia. They also had up to a 1.4 times greater risk of memory decline in middle age.
A limitation of the study was the inability to determine whether the decline leading to dementia is initiated by an accelerated cardiovascular disease risk. Farnsworth von Cederwald said it cannot be ruled out that other factors may also contribute, so more research is needed.

Speakers

Isra Zaman

B.Sc Life Sciences, M.Sc Biotechnology, B.Ed

Isra Zaman is a Life Science graduate from Daulat Ram College, Delhi University, and a postgraduate in Biotechnology from Amity University. She has a flair for writing, and her roles at Medicaldialogues include that of a Sr. content writer and a medical correspondent. Her news pieces cover recent discoveries and updates from the health and medicine sector. She can be reached at editorial@medicaldialogues.in.
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