Emerging Risk Factors for Cerebrovascular Disease

2007 ◽  
Vol 8 (7) ◽  
pp. 802-816 ◽  
Author(s):  
Nina J. Solenski
Author(s):  
Victoria J. Williams ◽  
Steven E. Arnold ◽  
David H. Salat

Throughout the lifespan, common variations in systemic health and illness contribute to alterations in vasculature structure and function throughout the body, significantly increasing risk for cardiovascular and cerebrovascular disease (CVD). CVD is a prevalent cause of mortality in late life; it also promotes brain alterations, contributing to cognitive decline and, when severe, vascular dementia. Even prior to diseased states, individual variation in CVD risk is associated with structural and functional brain alterations. Yet, how cumulative asymptomatic alterations in vessel structure and function contribute to more subtle changes in brain tissue integrity and function that emerge in late life is unclear. Finally, vascular risk factors are associated with the clinical progression of neurodegenerative diseases such as Alzheimer’s disease (AD); however, recent theory posits that vascular degeneration may serve a contributory role in these conditions. This chapter reviews how lifespan changes in vascular health contribute to degenerative changes in neural tissue and the subsequent development of cognitive impairment and/or vascular dementia. It first discusses associations between vascular risk factors and cognition and also how declining vascular health may lead to cognitive impairment and dementia. Next, it identifies basic aspects of cerebrovascular anatomy and physiology sustaining tissue health and discusses how vulnerabilities of this system contribute to neurodegenerative changes. Finally, it reviews evidence of vascular contributions to AD and presents ideas for future research to better understand the full spectrum of cerebrovascular contributions to brain aging, cognitive decline, and dementia.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Sergi Trias-Llimós ◽  
Lisa Pennells ◽  
Aage Tverdal ◽  
Alexander V. Kudryavtsev ◽  
Sofia Malyutina ◽  
...  

AbstractSurprisingly few attempts have been made to quantify the simultaneous contribution of well-established risk factors to CVD mortality differences between countries. We aimed to develop and critically appraise an approach to doing so, applying it to the substantial CVD mortality gap between Russia and Norway using survey data in three cities and mortality risks from the Emerging Risk Factor Collaboration. We estimated the absolute and relative differences in CVD mortality at ages 40–69 years between countries attributable to the risk factors, under the counterfactual that the age- and sex-specific risk factor profile in Russia was as in Norway, and vice-versa. Under the counterfactual that Russia had the Norwegian risk factor profile, the absolute age-standardized CVD mortality gap would decline by 33.3% (95% CI 25.1–40.1) among men and 22.1% (10.4–31.3) among women. In relative terms, the mortality rate ratio (Russia/Norway) would decline from 9–10 to 7–8. Under the counterfactual that Norway had the Russian risk factor profile, the mortality gap reduced less. Well-established CVD risk factors account for a third of the male and around a quarter of the female CVD mortality gap between Russia and Norway. However, these estimates are based on widely held epidemiological assumptions that deserve further scrutiny.


Obesity ◽  
2008 ◽  
Vol 16 (6) ◽  
pp. 1370-1376 ◽  
Author(s):  
Saverio Stranges ◽  
Lisa B. Rafalson ◽  
Jacek Dmochowski ◽  
Karol Rejman ◽  
Russell P. Tracy ◽  
...  

2021 ◽  
pp. 136-139
Author(s):  
K. Anbananthan ◽  
A. Manimaran ◽  
A. Ramasamy ◽  
S. A. Natesh ◽  
AnuSree. S. C

Background: COVID-19 is a viral infectious disease caused by the SARS CoV-2 virus which causes severe respiratory distress in a certain number of patients with specic risk factors. This study compares the mortality risk factors of COVID 19 and Severe Acute Respiratory Infection (SARI) deaths and also determines the most likely causes that lead to such a poor prognosis Objectives: To evaluate the risk factors of COVID 19 and SARI causing mortality. To compare the most likely risk factors that lead to such a poor prognosis Materials And Methods: This was a Cross sectional study done on 190 patients which includes all cases of covid 19 and SARI deaths within the peak of pandemic period (August 2020). Patient datas were collected from MRD registry at Thanjavur Medical College. Results: Among the study population of 190, age distribution of the patients died due to covid-19 was minimum 26 years to maximum 89 years and mean age of 61years. Most commonly affected were in the age around 60years. Distribution of male is around 72.1%.This study showed 47.9% were covid positive and 42.1% were suspected based on CT chest nding and clinical features. Around 84.7% were diabetic and 56.3% were hypertensive. There is no signicant difference between the exposure rate of diabetes, hypertension, CKD, chronic lung disease, cerebrovascular disease, liver disease, malignancy among covid and SARI group. Among these study population 94.7% had elevated d-dimer level. Conclusion: This study showed various comorbidities, complications, and demographic variables including diabetes, hypertension, chronic kidney disease,, chronic lung disease,liver disease, Cerebrovascular disease, cancer, increased D-dimer, male gender, older age(>50), smoking, and obesity are clinical risk factors for a fatal outcome associated with COVID 19.


Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Carlos Cantu-Brito ◽  
Erwin Chiquete ◽  
Jose L Ruiz-Sandoval ◽  
Fernando Flores-Silva

Background and Purpose: The objective of this study were to describe the proportion of patients eligible for the COMPASS trial among stable outpatients with either established atherothrombotic disease or major vascular risk factors, and to analyze 6-month incident stroke risk according vascular risk factors at baseline. Methods: We prospectively recruited 5,101 stable outpatients in 172 sites, within the Mexican INDAGA cohort study. Inclusion criteria were age >18 years and established atherothrombotic disease [history of either acute coronary syndromes (ACS), acute ischemic stroke (AIS)/transient ischemic attack (TIA) or peripheral artery disease (PAD)] or major vascular risk factors (age <55 years plus ≥2 major vascular risk factors, or age ≥55 years plus ≥1 vascular risk factors). Among these patients, we applied the selection criteria of the COMPASS trial for analysis, dividing the population in no COMPASS criteria met and COMPASS criteria met, and this last group subdivided among patients with previous AIS/TIA and without this antecedent, in order to stratify the risk for stroke during 6-month follow-up (incident AIS/TIA). Results: Among 5,101 stable outpatients with either established atherothrombotic disease (n=2,827) or major vascular risk factors (n=2,274), a total of 1,927 (37.8%) met COMPASS trial criteria: 1,054 (54.7%) with established cerebrovascular disease (past history of AIS/TIA) and 873 (45.3%) without. During 6-month follow-up, there were 89 incident AIS/TIA (39 AIS and 54 TIA): 1.7% among the whole population and 2.2% among the COMPASS subgroup. AIS/TIA occurred in a similar frequency among the COMPASS subgroup with established cerebrovascular disease (1.6%) and COMPASS without cerebrovascular disease (0.9%) (P=0.18). After a Cox-proportional hazards model, independent predictors of incident AIS/TIA were age ≥65 years (HR: 1.99, 95% CI: 1.29-3.07) and established cerebrovascular disease at baseline (HR: 1.61, 95% CI: 1.02-2.53). Conclusions: The majority of stable outpatients at vascular risk met COMPASS selection criteria and could be good candidates for low-dose rivaroxaban in addition to aspirin. Short-term predictors of AIS/TIA were old age and history of cerebrovascular disease


QJM ◽  
2014 ◽  
Vol 107 (6) ◽  
pp. 443-449 ◽  
Author(s):  
Y.- S. Bao ◽  
X.- B. Jia ◽  
Y. Ji ◽  
J. Yang ◽  
S.- L. Zhao ◽  
...  

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