Primordial, primary, secondary, and tertiary prevention stages for global vascular risk. R. Sacco: Stroke, Volume 38(6).June
Neurovascular Disease Epidemiology 50% Ischemic stroke, 30% ICH, 20% SAH Causes/ Pathophysiology Ethnic Issues Biology Sociology
Epidemiology Worldwide Incidence per 100,000 persons/yr; age < 50 yrs Israel 10.4 Northern Italy 13.6 Spain 13.9 South Africa 33.0 UK women 3.6 Bradley S. Jacobs et al. Stroke 33: , 2002
Risk Factors and Predictors of Stroke Older age Male gender Non-white genetic background Family history Prior stroke or TIA Non-modifiable risk factorsModifiable risk factors Previous TIA or stroke is the most important risk factor for stroke. Hypertension is the most prevalent. Hankey GJ. Cerebrovasc Dis 2003; 16 (Suppl 1): 14–19. Wolf PA. Adv Neurol 2003; 92: 165–172. Sacco et al. Stroke 1997; 28 (7): 1507–1517. Hypertension Diabetes mellitus Atrial fibrillation Carotid artery disease Dyslipidemia Cardiac disease Cigarette smoking Obesity Obstructive Sleep Apnea
Problem! Hispanics have higher prevalence of: Obesity Diabetes Mellitus Hypertension Hyperlipidemia
Prevalence of Identified Risk Factors on Admission to UMC
African-American Hispanic American AgeMenWomen STROKE IN MINORITIES Survey of Stroke Mortality in Texas Rate-Ratio in Comparison to Non-Hispanic Whites Morgenstern et al Stroke, 1997, 28:5-18
Stroke Subtypes in the NOMASS Study F. Rincon et al Cerebrovascular Diseases 2009; 28:65-71.
NOMASS Study F. Rincon et al Cerebrovascular Diseases 2009; 28:65-71.
NOMASS Study
Secondary Stroke Prevention
Problem! Individuals living in the Hispanic Community: Do not know stroke warning symptoms/ signs Do not come to the ED quickly Have less “technical” evaluations
Hypertension
The most prevalent and modifiable risk factor for stroke BP reduction lowers stroke recurrence ~28% Stroke 1997;28:2557 Treatment of elevated SBP in elderly reduces stroke risk by 36% Decrease in DBP of 5-6 mmHg reduces stroke risk by 42% Treatment of stage-I hypertension prevents 1 death in 11 patients over 10 years; 1 in 9 if end- organ damage is present
Adjusted Relative Risk of Cardiovascular Mortality According to BP in Men Screened for MRFIT MRFIT, Multiple Risk Factor Intervention Trial Arch Intern Med. 1993;153:186.
“new” Risk Factors for stroke Abdominal Obesity Lack of Exercise Poor Diet Too Little Alcohol Too Much Alcohol Psychosocial Stress Impoverishment Genetic Inflammation Infectious PFO Insulin Resistance Homocysteinemia Thrombophilias
Cavernous Malformation
Prevalence 0.1 to 0.5% CCM1 – 7q21-q22 CCM2 – 7p13-p15 CCM3 – 3q25.2-q27 CCM1 - krit1: krev interaction trapped 1 protein CCM2-CCM2 (malcavernin) CCM3-PDCD10
Re-Search: To Look Again Santiago Ramon y Cajal
Primordial, primary, secondary, and tertiary prevention stages for global vascular risk. R. Sacco: Stroke, Volume 38(6).June
Diet and Exercise
Lipid Levels in Patients Hospitalized with Coronary Artery Disease n = 136,905 Amit Sachdeva et. al. Am Heart J 2009;157:111-7.e2
JUPITER: Cumulative Incidence of Cardiovascular Events NEJM 2008;359:
JUPITER: Effects of Rosuvastatin on Primary End Point by baseline NEJM 2008;359: Primary Endpoints: MI Stroke CVD Unstable Angina Revascularization
Carotid Atherosclerosis
Hansson et al. Nature Reviews Immunology 6, (July 2006) | doi: /nri1882 Atherothrombosis