Abstract W MP70: Characteristics of Patients With Microemboli Detected With Transcranial Doppler Monitoring

Stroke ◽  
2014 ◽  
Vol 45 (suppl_1) ◽  
Author(s):  
Lauren Koffman ◽  
Zubair Ahmed ◽  
Rebecca Michael ◽  
Leasa Baus ◽  
Larry Raber ◽  
...  

Introduction: TCD emboli monitoring (TCDe) is a non-invasive tool used to detect the presence of ongoing microembolic signals (MES) in the intracranial arterial vessels. The clinical utility of this test in the evaluation of acute stroke patients has been debated. Our goal was to evaluate clinical factors associated with MES in ischemic stroke patients who underwent TCDe to determine which patient population may benefit from TCDe. Methods: Retrospective cohort study of adult patients admitted to our tertiary care center for TIA or ischemic stroke from 2011 to 2012 who underwent TCDe. Monitoring was performed for 20 minutes using a standardized protocol. Inclusion criteria included insonatation of both middle cerebral arteries and completion of TCD bubble study (TCB). Repeat TCDe performed on the same patient were excluded from the analysis. Demographic, clinical and objective data were collected using our EMR system. Results: Of the 113 patients included in the final analysis, mean age was 57.9 years and 46.9% were female. MES occurred in 33.6% patients. Mean # of MES was 9.3 (SD 60.6). Patients with MES were significantly younger (51.8 years vs 61.0, p.006) and had fewer vascular risk factors: diabetes (10.5% vs 33.3%, p 0.006), hyperlipidemia (23.7% vs 49.3%, p 0.007), hypertension (47.4% vs 17.33%, p 0.067), atrial fibrillation (7.9% vs 17.33 %, p 0.16), congestive heart failure (5.3% vs 10.7%, p 0.32) and coronary artery disease (18.4 % vs 29.3%, p 0.2). Cryptogenic stroke and the presence of right to left shunt (RLS) was more frequent in patients with MES than those without. Mean WBC count and usCRP were both nonsignificantly higher in patients with MES. Conclusions: Clinical characteristics of patients with MES on TCDe differed from those without MES, which may have diagnostic and clinical implications. Patients with MES were younger and had fewer stroke risk factors. MES were seen more often in patients with RLS and in those with cryptogenic stroke, which raises the possibility of an association between these two factors. Interestingly, patients with MES also had higher usCRP and WBC values, suggesting a possible inflammatory component to the occurrence of MES. More research is needed with a larger sample size to better define the significance of the above findings.

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Dinesh V Jillella ◽  
Sara Crawford ◽  
Anne S Tang ◽  
Rocio Lopez ◽  
Ken Uchino

Introduction: Regional disparities exist in stroke incidence and stroke related mortality in the United States. We aimed to elucidate the stroke risk factor prevalence trends based on urban versus rural location. Methods: From the National Inpatient Sample database the comorbid stroke risk factors were collected among hospitalized ischemic stroke patients during 2000-2016. Crude and age-and sex-standardized prevalence estimates were calculated for each risk factor during the time periods 2000-2008 and 2009-2016. We compared risk factor prevalence over the defined time periods using regression models, and differences in risk factor trends based on patient location categorized as urban (metropolitan with population of ≥ 1 million) and rural (neither micropolitan or metropolitan) using interaction terms in the regression models. Results: Stroke risk factor prevalence significantly increased from 2000-2008 to 2009-2016. When stratified based on patient location, most risk factors increased in both urban and rural groups. In the crude model, the urban to rural trend difference across 2000-08 and 2009-16 was significant in hypertension (p<0.0001), hyperlipidemia (p=0.0008), diabetes mellitus (p<0.0001), coronary artery disease (p<0.0001), smoking (p<0.0001) and alcohol (p=0.02). With age and sex standardization, the urban to rural trend difference was significant in hypertension (p<0.0001), hyperlipidemia (p=0.0007), coronary artery disease (p=0.01) and smoking (p<0.0001). Conclusion: The prevalence of vascular risk factors among ischemic stroke patients has increased over the last two decades. There exists an urban-rural divide, with rural patients showing larger increases in prevalence of several risk factors compared to urban patients.


2021 ◽  
Vol 31 (4) ◽  
pp. 509-518
Author(s):  
Sathyajith Buddhika Ambawatte ◽  
Dulmini Nadeesha Weerathunga ◽  
Athula Dissanayake ◽  
Surangi Chandhi Somaratne ◽  
Kanishka Athukorala ◽  
...  

Background: Stroke is a heterogeneous, catastrophic disease. A comprehensive clinical analysis of ischemic stroke (IS) risk factors and outcomes is crucial for optimum management in resource-poor settings.Methods: A prospective cross-sectional study of acute cerebrovascular disease (ACVD) involving 592 patients was con­ducted in a tertiary care center in Sri Lanka from November 2018 to May 2019. We aimed to describe the ACVD subtypes and the relationship of IS subtypes and subtype-categories (as defined by the Oxfordshire Community Stroke Project clinical clas­sification) with risk factors, severity, and outcome.Results: The majority (63.3%) had IS. Partial anterior circulation syndromes (PACS), total anterior circulation syndrome (TACS), posterior circulation syndromes (POCS), and lacunar syndromes (LACS) accounted for 102 (29.7%), 58 (16.9%), 88 (25.7%) and 95 (27.7%) of the cases, respectively. The most common PACS sub-category was higher-cerebral-dysfunction-with-homonymous-hemianopia (HCD+HH,39 cases;38.2%). Cerebellar-signs-without-long-tract-signs (CS-LTS) sub-category constituted the highest among POCS (47 cases; 53.4%). The leading sub-category within LACS was pure-motor (PM) strokes (43 cases; 45.3%).Patients aged ≥50 years (adjusted-OR [AOR]2.439; 95%CI,1.163-5.116;P=.018), IHD(AOR 2.520; 95%CI,1.347-4.713; P=.004) and BMI>23kg/m2(AOR 2.607; 95% CI,1.420-4.784; P=.002) were 2.5 times more likely to associate with TACS. Patients with a history of TIA (AOR 1.910; 95%CI,1.036-3.524; P=.038) and arrhyth­mias (AOR 5.933; 95%CI,3.294-10.684; P<.001) were 1.9 and 5.9 times more likely to be associated with POCS respectively. Those with hypertension were 2.3 times more likely to associate with LACS (AOR 2.233; 95%CI,1.270-3.926; P=.005).NIHSS(P<.001), mRS on admission (P=.001) and in 3 months (P<.001), deaths during hospital stay (P=.003) and within 28 days (P<.001) had a stronger relationship with individual stroke subtypes.Conclusion: The comparative risk of different IS subtypes depends on differ­ent risk factors. The findings of this study demonstrate that sub-categories within each stroke subtype may behave independently with regard to risk factors and outcomes, thus warranting the need for individual assessment. Ethn Dis. 2021;31(4):509-518; doi:10.18865/ed.31.4.509


2021 ◽  
Vol 39 (6_suppl) ◽  
pp. 73-73
Author(s):  
Mona Hassan ◽  
Talar Telvizian ◽  
Mostafa Abohelwa ◽  
Hadi Skouri ◽  
Deborah Mukherji

73 Background: Androgen deprivation therapy (ADT) is the mainstay of treatment for advanced prostate cancer, improving symptoms and prolonging survival. There is an association between ADT use and cardiovascular events, particularly in men with pre-existing risk factors. There are no definite guidelines to stratify patients based on cardiovascular risk prior to ADT initiation. This is the first study on cardiac risks and events in patients on ADT from Lebanon and the Middle East region, a population known to have a high prevalence of cardiovascular risk factors. Methods: A retrospective chart review of 236 patients with prostate cancer who received ADT therapy at a tertiary care center in Lebanon was performed. 167 had a full set of data and were included in analysis. Cardiovascular risk factors at baseline and cardiovascular events on ADT were reviewed. Results: The median age of our cohort was 68, range 48-92 years. The majority of patients had stage 4 diseases at diagnosis (49.8%) with a median duration of 12 months on ADT. In our cohort 24.4% had body mass index > 30, 52.1% had smoking history, 27.4% were diabetic, 28.8 % had history of coronary artery disease, 10.6% had heart failure history and 54.6% had hypertension. Less than half of the patients had a documented lipid profile at baseline. Twenty two patients (9.5%) had documented cardiac events following ADT initiation. Conclusions: In this cohort of patients from the Middle East we found that one third of the population had established coronary artery disease at baseline and 9.5% had documented cardiac events on ADT initiation. Our study highlights the gaps in cardiovascular risk assessment for this high risk group of patients with prostate cancer. Risk and resource-stratified algorithms are needed before starting ADT therapy for optimal cardiovascular health. Increased awareness, collaboration and referral mechanisms between oncologists, urologist and cardiologists are also needed.


2019 ◽  
Vol 8 (2) ◽  
pp. 66-71
Author(s):  
Dipesh Shakya ◽  
Rabindra Shrestha ◽  
Krishna Dhungana ◽  
Raisha Kafle ◽  
Sabnam Bhatta

Background: Stroke is a disabling condition that has physical and mental impact on a patient’s life. Stroke is an important morbidity for low and middle income countries like Nepal. Hypertension, diabetes, smoking, and dyslipidemia are common risk factors in this regard and are inadequately controlled; mainly because of poor public awareness, inadequate infrastructure, lack of service and qualified manpower.Objectives: This study aims to provide insight into the epidemiology and risk factors in ischemic stroke patients.Methodology: A descriptive cross sectional study was conducted in 92 ischemic stroke patients at a tertiary care hospital Kathmandu Medical College and Teaching Hospital (KMCTH), Sinamangal, Nepal from December 2017 to June 2018. Consecutive sampling technique was used and data was collected from ischemic stroke patients above 14 years of age who were admitted in the Department of Neurology. Information regarding pre-morbid and morbid conditions, imaging findings as well as results was obtained from biochemical analysis of blood after taking consent from the patient or patient’s relative. Statistical Package for the Social Sciences Version 20 was used as a tool for statistical analysis.Results: Their mean age was 63.25 years with standard deviation of 16.45. Dyslipidemia was the most commonly found risk factor which was present in 77.2% of the subjects, followed by smoking (59.8%), presence of carotid artery atherosclerosis (59.8%), hypertension (50%), atrial fibrillation (26.1%) and diabetes mellitus(15.2%). Smoking was significant in males and heart disease was mostly seen in females.Conclusion: Dyslipidemia and smoking were the most common risk factors followed by carotid artery atherosclerosis. Patients with hypertension and dyslipidemia had higher incidence of stroke in both young and elderly group.


2016 ◽  
Vol 7 (01) ◽  
pp. 72-76 ◽  
Author(s):  
Lukman Femi Owolabi ◽  
Aliyu Ibrahim ◽  
Ibrahim Musa

ABSTRACT Background: Posterior circulation stroke (PCS), though less common, differs from stroke in anterior circulation in many aspects. Relatively, it portends a poorer prognosis. However, there is a paucity of data from African countries, in particular, where stroke is a menace. Objective: The study aimed to evaluate the etiology, clinical characteristics, outcome, and predictors of outcome in a cohort of patients with IPCS in Northwestern Nigeria. Materials and Methods: Out of 595 patients with stroke, we prospectively analyzed 57 patients with PCS in a Tertiary Care Center in Kano, Northwestern Nigeria. Patients were analyzed for demographic data, risk factors, clinical characteristics, stroke subtypes, mortality, and predictors of mortality. Results: Posterior circulation ischemic stroke accounted for 57 (9.6%) of 595 of all strokes seen in the study period. They comprised 44 males (mean age 47.8 ± 17.7) and 13 females (mean age 46.3 ± 13.7). Overall, their age ranged between 24 and 90 (mean age 47.4 ± 16.7). However, 52.7% of the patients were < 45 years of age. The most common site affected was the cerebellum seen in 33 (57.9%) patients. Hypertension was the most common risk factor (86%). Headache and vertigo were the most common features accounting for 83.6% and 86.3%, respectively. Thirty-eight (66.7%) patients had an ischemic stroke. Twenty-one (36.8%) of the patients died during the 1-month period of follow-up. Independent predictors of death in the study were hyperglycemia on admission and hemorrhagic stroke. Conclusions: IPCS occurred in a relatively younger age group. Headache and vertigo were the most common symptoms. The independent predictors of death in the study were hyperglycemia at presentation and hemorrhagic stroke.


Stroke ◽  
2015 ◽  
Vol 46 (suppl_1) ◽  
Author(s):  
Claudia Alonzo ◽  
Maria C Zurru ◽  
Laura Brescacin ◽  
Santiago Pigretti ◽  
Pedro Colla Machado ◽  
...  

Background: women who have ischemic strokes are on average older than men.Several studies, however, show that stroke outcomes are worse in women even after adjusting for age, and the specific conditions that contribute to this outcome are poorly known. Our objective was to evaluate post-stroke disability and mortality after ischemic stroke in women. Methods: acute ischemic stroke patients were prospectively included in a multidisciplinary secondary stroke prevention program. Pre-stroke vascular risk factor profile and control were obtained from electronic records; disability (modified Rankin scale) were evaluated one month after stroke. Results: fifty seven percent of the 1194 ischemic stroke patients prospectively included between December 2006 and December 2013 were women. They were older, more probably hypertensive, dislipidemic and diabetic, and had higher incidence of atrial fibrillation, while men had higher prevalence of obesity, metabolic syndrome, smoking, and history of coronary heart disease and peripheral artery disease. Pre-stroke vascular risk factor control and management are shown in table 1. Women had worst outcome than men: mRankin >1 (66% women vs 52% men, p 0.0001), 30-day mortality (4% women vs 2% men, p 0.04), composite disability + mortality (52% women vs 36% men, p 0.0001). After adjusting by age women still had higher risk of disability and mortality: m-Rankin >1 (OR 1.40, 95%CI 1.05-1.87; p 0.02); mortality (OR 1.64, 95%CI 0,98-2,74), and composite disability + mortality (OR 1.59, 95%CI 1.22-2.07; p 0.004). Conclusion: in our cohort women have worst post-stroke outcome, even though they have higher burden of vascular risk factors they have lower prevalence of vascular disease in other vascular beds previous to stroke. This difference persists after adjusting by age, raising the possibility of specific gender risk factors influencing on ischemic stroke outcomes.


2016 ◽  
Vol 17 (2) ◽  
pp. 95-99
Author(s):  
Sanjoy Kumar Saha ◽  
Prodip Kumar Biswas ◽  
Meherunessa Mukta ◽  
Mohammed Shahadat Hossain ◽  
Mimal Kumar Basu ◽  
...  

Objectives: Study of the risk factors associated with stoke due to cardiac disease in age group between 18 to 45 years of age,evaluate the risk factor of hospitalized stroke patients & to search for cardiac disease associated with stroke also appropriate preventive measure applicable for our country.Materials & Methods: Non randomized prospective observational study was carried out in the department of Neurology, Medicine & Cardiology unit of Dhaka Medical College Hospital between the periods of July 2009 to December 2009. Fifty (50) consecutive indoor patients more than 18 years of both sex admitted with suspicion of stroke. Diagnosis of stroke will be made from details clinical history clinical examination and confirmed by CT scan or MRI.Result: Fifty patients were randomly chosen for this study, of which 26 (52%) patients were male, 24 (48%) patients were female & male: female ratio was 1.08:1. Highest incidence of stroke was in between 3rd & 4th decade. The incidence of ischemic stroke 46 (92%) & hemorrhagic stroke 4(8%).Cardio embolism is the major (92%) risk factor for ischemic stroke. Among the cardiac risk factors, valvular disease (64%), MI (16%), &IHD (10%), Atrial fibrillation 8%, Patent foramen ovale 2%.Among the patients 33.33% of women with cerebral infarction were using OCP. Majority of the patients in this study were sedentary worker (45%). Among the stroke patients 8% & 10% had previous H/O stroke & TIA respectively.Conclusion: In this study a number of modifiable risk factors were identified, of which valvular heart disease & HTN are important risk factor next are DM & IHD smoking. Most of the valvular heart diseases are rheumatic in origin, which can be prevented through primary & secondary prevention of rheumatic fever.J MEDICINE July 2016; 17 (2) : 95-99


Author(s):  
Eman Khedr ◽  
Abeer A. Tony ◽  
Mohamed Habeel ◽  
Ahmed Nasreldein

Abstract Background Limited data are available on the frequency of carotid artery disease among cerebrovascular ischemic stroke (CVS) patients in south Egypt. The aim of the present study is to determine the prevalence and risk factors of extracranial atherosclerosis among stroke patients using extracranial duplex ultrasound. Results 142 patients (76.8%) were males and 43 (23.2%) were females. Their mean age was 63.3 ± 9.79 years with no significant difference between the mean age of the male and female groups. NIHSS score ranged from 3 to 25 (mean ± S.D; 11.89 ± 4.91). 66 patients (35.7%) had no atherosclerotic changes, 75 patient (40.5%) had stenosis < 70% and 44 patients (23.8%) had stenosis ≥ 70%. The most prevalent modifiable risk factors for atherosclerosis were hypertension (74.8%), hyperlipidemia (70.6%), smoking (59.7%) and DM (45.4%). Conclusion Atherosclerosis among people in the south Egypt is relatively high in comparison to other regions in Egypt and Middle East. This is a call for performing further population-based epidemiological studies, to address the exact magnitude of the problem and invest into prevention.


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