A population-based study of the association between coronary artery bypass graft surgery (CABG) and cognitive decline: the Cache County study

International Journal of Geriatric Psychiatry
Constantine G LyketsosCache County Study Group

Abstract

The relationship between coronary artery bypass graft (CABG) surgery and cognitive decline remains uncertain, in particular with regard to whether there is delayed cognitive decline associated with this procedure. This was a population-based cohort study involving participants in the Cache County Study of Memory Health and Aging. At baseline the study enrolled 5,092 persons age 65 and older and followed them up three years later and again four years after that. Individuals who reported having undergone CABG surgery at study baseline or had this surgery in between follow-up waves were compared to individuals who never reported having the surgery. The main outcome measure was the Modified Mini Mental State (3MS). Multilevel models were used to examine the relationship between CABG surgery and cognitive decline over time. Study participants who had CABG surgery evidenced 0.95 points of greater decline relative to baseline on the 3MS at the first follow-up interview after CABG, and an average of 1.9 points of greater decline at the second follow-up interview, than those without CABG (t = -2.51, df = 2,316, p = 0.0121), after adjusting for several covariates, including number of vascular conditions. This decline was restricted to in...Continue Reading

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Citations

Oct 16, 2010·Neuropathology and Applied Neurobiology·W R Brown, C R Thore
Mar 7, 2017·Alzheimer Disease and Associated Disorders·Elżbieta KuźmaDavid J Llewellyn
Mar 5, 2021·Alzheimer's & Dementia : the Journal of the Alzheimer's Association·Kok Wai GiangSusanne J Nielsen
Sep 26, 2021·Journal of Cardiopulmonary Rehabilitation and Prevention·Diann E GaalemaJacob S Ballon

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