Higher Risk of Vascular Dementia in Myocardial Infarction Survivors
Circulation. 2017;CIRCULATIONAHA.117.029127, https://doi.org/10.1161/CIRCULATIONAHA.117.029127
Jens Sundbøll, Erzsébet Hováth-Puhó, Kasper Adelborg, Morten Schmidt, Lars Pedersen, Hans Erik Bøtker, Victor W. Henderson, Henrik T. Sørensen
Background—Increased risk of dementia after myocardial infarction (MI) may be mediated by shared risk factors (e.g., atherosclerosis) and post-MI stroke. We examined risk of dementia in 1-year survivors of MI.
Methods—Using Danish medical registries, we conducted a nationwide population-based cohort study of all patients with first-time MI and a sex-, birth year-, and calendar year-matched general population comparison cohort without MI (1980-2012). Cox regression analysis was used to compute 1-35 year adjusted hazard ratios (aHRs) for dementia, controlled for matching factors and adjusted for comorbidities and socioeconomic status.
Results—We identified 314,911 patients with MI and 1,573,193 matched comparison cohort members randomly sampled from the general population (median age 70 years, 63% male). After 35 years of follow-up, the cumulative incidence of all-cause dementia in the MI cohort was 9% (2.8% for Alzheimer's disease, 1.6% for vascular dementia, and 4.5% for other dementias). Compared with the general population cohort, MI was not associated with all-cause dementia (aHR = 1.01, 95% confidence interval (CI): 0.98-1.03). Risk of Alzheimer's disease (aHR = 0.92, 95% CI: 0.88-0.95) and other dementias (aHR = 0.98, 95% CI: 0.95-1.01) also approximated unity. However, MI was associated with higher risk of vascular dementia (aHR = 1.35, 95% CI: 1.28-1.43), which was substantially strengthened for patients experiencing stroke after MI (aHR = 4.48, 95% CI: 3.29-6.12).
Conclusions—MI was associated with higher risk of vascular dementia throughout follow-up and this asssociation was stronger in patients suffering stroke. The risk of Alzheimer's disease and other dementias was not higher in MI patients.
See also Vitamin D Life
Cardiovascular category starts with the following
- Overview Cardiovascular and vitamin D
- Hypertension and vitamin D
- Overview Metabolic Syndrome and vitamin D
- Overview Stroke and vitamin D
- Peripheral arterial disease risk is 1.5X higher if low vitamin D – meta-analysis March 2018
- Peripheral Arterial Disease 3.7 X more likely in diabetics with low vitamin D – June 2019
- Heart attack ICU costs cut in half by Vitamin D – Oct 2018
Meta-analyses
- Heart Failure and Vitamin D meta-analyses - 2016, 2019
- Cardiovascular death 1.5X more likely if less than 20 ng of Vitamin D – 22nd meta-analysis Nov 2019
- Vitamin D supplementation reduces many Cardiovascular Disease markers– meta-analysis July 2018
Omega-3 Helps
- Cardiovascular Prevention with Omega-3 (finally using high doses) – Sept 2019
- Higher Omega-3 index (4 to 8 percent) associated with 30 percent less risk of coronary disease (10 studies) July 2017
A poor Vitamin D Receptor can block Vitamin D in blood from getting to tissues
- Heart Failure 15X more likely if poor VDR, even if good level of vitamin D (China) – March 2019
- Coronary Artery Disease without diabetes 5 times more likely if VDR gene problems – meta-analysis May 2016
Cholesterol, Statins
- Cholesterol is needed to produce both Vitamin D and Cortisol
- Overview Cholesterol and vitamin D
- Statins and vitamin D statins often reduce levels of vitamin D
- Statin side-effects are reduced by Vitamin D – US patent Application – April 2019
Items in both categories Cardiovascular and Cognition are listed here:
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- Benefits of Omega-3 beyond heart health - LEF Feb 2018
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- Vitamin D and neurocognitive function – April 2014
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