scholarly journals The Burden of Atrial Fibrillation as Stroke Risk Factor in Southeast Asia: A Systematic Review

2020 ◽  
Vol 10 (1) ◽  
pp. 131-134
Author(s):  
Rizaldy Taslim Pinzon ◽  
Niyata Hananta Karunawan

Introduction Stroke is the most burden complication in a patient with atrial fibrillation. Atrial Fibrillation (AF) is the common cardiac arrythmia in stroke patients. The epidemiology study of AF-associated stroke were limited published research in southeast. This study may prove valuable in routine clinical practice. This systematic review aimed to identify the latest evidence on the epidemiology of AF related stroke in southeast Asia regions. Methods: We performed a comprehensive search on prevalence or incidence of atrial fibrillation related stroke from inception up until September 2019 through PubMed and Cochrane Central Database. The keywords were the combination of the following words:  “stroke”, “epidemiology”, “atrial fibrillation”, and was then used with the name of each country in southeast Asia”. The inclusion criteria of the study i.e : patients with stroke, was a original papers with observational study, concerned on AF in stroke patients in southeast Asia. Data on incidence and prevalence were obtained from hospital-based studies and community-based studies. Results: Atrial Fibrillation prevalence data are available in five countries in southeast Asia, a total of the 11 articles identified were from Malaysia, Thailand, Vietnam, Singapore, and Indonesia were also represented. The reported prevalence of AF as a risk factor of stroke patients was 2.6 % until 23.04% based on hospital-based studies. Conclusion: AF is one of risk factors that associated with the stroke. This study also showed that prevalence AF in South East Asia ranged  2.6 – 23.04 % . However, owing to the limited number of studies in southeast Asian countries, further investigation is needed before drawing a definite true of prevalence of AF in the southeast Asia population. Keywords: Atrial Fibrillation, AF-associated Stroke, Epidemiology, Risk Factors.

Author(s):  
Cassie A Simmons ◽  
Nicolas Poupore ◽  
Fernando Gonzalez ◽  
Thomas I Nathaniel

Introduction : Age is the single most important risk factor for stroke and an estimated 75% of all strokes occur in people >65 years of age. In addition, adults >75 years’ experience more hospitalization stays and higher mortality rates with an estimated 50% in the occurrence of all strokes. Several comorbidities have been linked to an increased risk and severity of acute ischemic stroke (AIS). How these factors differentially contribute to the severity of stroke in patients ages >65 and <75 as well as those ≥75 is not known. In this study, we aim to investigate how age, coupled with various clinical risk factors, affects AIS severity within these two age categories. Methods : This retrospective data analysis study was conducted using the data collected from the PRISMA Health Stroke Registry between 2010 and 2016. Baseline clinical and demographic data for patients ages >65 and <75 as well as those ≥75 was analyzed using univariate analysis. Receiver operating characteristic (ROC) curve analysis and multivariate regression models were used to examine the association of specific baseline risk factors or comorbidities associated with worsening or improving neurologic functions. The primary functions were risk factors associated with improving or worsening neurologic outcome in each age category. Results : Adjusted multivariate analysis showed that AIS population of patients >65 and <75 experiencing heart failure (OR = 4.398, 95% CI, 3.912 – 494.613, P = 0.002) and elevated HDL levels (OR = 1.066, 95% CI, 1.009 – 1.126, P = 0.024) trended towards worsening neurologic functions while patients experiencing obesity (OR = 0.177, 95% CI, 0.041 – 0.760, P = 0.020) exhibited improving neurologic functions. For the patients ≥75 years of age, direct admission (OR = 0.270, 95% CI, 0.085 – 0.856, P = 0.026) was associated with improvement of patients treated in the telestroke. Conclusions : Age is a strong risk factor for AIS, and aged stroke patients have higher morbidity and worsening functional recovery than younger patients. In this study, we observed differences in stroke risk factor profiles for >65 and <75 and ≥75 age categories. Heart failure and elevated HDL levels were significantly associated with worsening neurologic functions among AIS for patients aged >65 and <75. Obese patients and individuals ≥75 years who were directly admitted were most likely to exhibit improving neurologic functions. Most importantly, findings from this study reveal specific risk factors that can be managed to improve the care in older stroke patients treated in the telestroke network.


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.


2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Salim Harris ◽  
Saleha Sungkar ◽  
Al Rasyid ◽  
Mohammad Kurniawan ◽  
Taufik Mesiano ◽  
...  

Background and Purpose. Stroke is a leading cause of death and disability, with ischemic stroke as the highest prevalent cases in Indonesia. Ischemic stroke can be classified further into five subtypes according to TOAST classification. Numerous studies have revealed that stroke risk factor has variable correlation with different stroke subtype. Currently, there is no data regarding this phenomenon in Indonesia. The aim of study is to identify characteristic of ischemic stroke subtypes and the risk factors in TOAST classification. Methods. A retrospective, cross-sectional study of patients diagnosed with ischemic stroke at Cipto Mangunkusumo Hospital from January till December 2016. Demographic data, ischemic stroke subtypes, risk factors, and other relevant data were documented. Bivariate and multivariate analysis was done using SPSS 23. Results. 235 recorded data patients were included. Large artery atherosclerosis (LAA) was the most prevalent stroke subtypes at 59,6%, followed with small vessel disease (SVD) at 26,7%, undetermined etiology at 9,8%, cardioembolism (CE) at 2,1%, and other determined etiology at 0,9%. Hypertension was the most common vascular risk factor. However, it was only significant in SVD (p=0,023) and undetermined etiology subtypes (p<0,001). Significant risk factor in LAA was diabetes (55%; p=0,016) while in CE subtypes was atrial fibrillation (60%;p<0,001). In multivariate analyses, hypertension (OR 3; 95% CI 1,12-8,05) was the only variable that was related to SVD while in CE it was atrial fibrillation (OR 113,5; 95% CI 13,6-946,5). Conclusion. LAA was the most common stroke ischemic subtypes. Associated risk factor in LAA was diabetes while in SVD and undetermined etiology subtypes it was hypertension. Atrial fibrillation was associated with cardioembolism.


2017 ◽  
Vol 9 (3) ◽  
Author(s):  
Jesada Surawan ◽  
Suchat Areemit ◽  
Somsak Tiamkao ◽  
Theparak Sirithanawuthichai ◽  
Suprawita Saensak

This study aimed to evaluate the risk factors for prognostic of post-stroke dementia (PSD). A systematic review included case-control and/or cohort studies, we searched both published and unpublished literatures between 2000 to July 31, 2016. Two authors independently screened and selected research articles. If another one disagreed, the third author would be just along with his/her professionally. Moreover, Critical appraisal was measured by the quality (GRADE). Data collection was in the data extraction form. The Rev-Man 5.3 was used to estimate pooled data. The fixed-effect model will be used when the heterogeneity I2>50%. Result eight publications were pooled for measuring an association between risk factors and PSD by meta-analysis. There were 6 strongly PSD risk factors. The pooled relative ratio (RR) of atrial fibrillation was 1.68, previous stroke 1.59, myocardial infarction 1.40, hypertension 1.36, diabetes mellitus 1.25 and previous transient ischemic attack 1.25 respectively. Un-pooled data from 13 publications reported that the risk factors for dementia in stroke patients were i) demographic factors, ii) vascular risk factors, iii) stroke factors, iv) stroke complications, and v) abnormalities on brain imaging. Strongly risk factors associated with increasing PSD risk were atrial fibrillation, previous stroke, myocardial infarction, hypertension, diabetes mellitus, and previous transient ischemic attack. Further studies, strongly risk factors need to investigate and develop the risk score for the prediction of dementia in stroke patients.


2020 ◽  
Vol 33 (1) ◽  
Author(s):  
Katarzyna Kapica-Topczewska ◽  
Weronika Golec ◽  
Joanna Kulikowska ◽  
Jakub Izycki-Herman ◽  
Adam Gryko ◽  
...  

Introduction. Stroke is the main cause of disability and the second leading cause of death worldwide. Over 60,000 cases of stroke are diagnosed in Poland each year. In the coming years, due to the aging of the population and the elevation of risk factor prevalence, a further increase in the incidence of stroke in Poland is expected. Aim. Investigation of demographic characteristics, clinical analysis and assessment of risk factors among the stroke patients hospitalized in the UMB Department of Neurology. Material and methods. The retrospective analysis included medical documentation of patients hospitalized due to a stroke in 2016. The neurological condition of patients was assessed at the time of admission and discharge using the National Institutes of Health Stroke Scale (NIHSS). Results. The medical documentation of 402 stroke patients, consisting of 55.47% women and 44.53% men was analyzed. Ischemic (IS) and haemorrhagic strokes (HS) accounted for 91.8 and 8% respectively. The average age of a stroke patient was 74.2 years (women 76.6, men 71.2). The most common risk factors were hypertension (78.6%), dyslipidemia (55.2%) and atrial fibrillation (25.6%). According to the NIHSS scale, 65% of patients received ≤ 5 while 1.8% ≥ 25 points. During hospitalization, the NIHSS clinical improvement was achieved in 71.9%, deterioration in 3.6% and no change was observed in 24.5% of patients. In-hospital mortality amounts to 7.5%. Conclusions. More than two thirds of patients had more than one stroke risk factor, from which the most common one is hypertension. Awareness of modifiable risk factors for stroke is essential for implementation of a secondary prevention.


Open Heart ◽  
2020 ◽  
Vol 7 (2) ◽  
pp. e001465
Author(s):  
Maxim Grymonprez ◽  
Stephane Steurbaut ◽  
An De Sutter ◽  
Lies Lahousse

AimsOral anticoagulants (OACs) are crucial for treating atrial fibrillation (AF) patients at high thromboembolic risk. However, in AF patients at intermediate thromboembolic risk with a single non-sex-related stroke risk factor (CHA2DS2-VASc score 1 in men, 2 in women), guidelines advise to consider starting anticoagulation, which may result in OAC non-initiation due to underestimation of the thromboembolic risk of a single stroke risk factor and overestimation of the OAC-related bleeding risk. A critical appraisal of the role of OACs and the benefit–risk profile of non-vitamin K antagonist oral anticoagulants (NOACs) compared with vitamin K antagonists (VKAs) in this patient subgroup are needed.Methods and resultsThis systematic review provides an overview of literature on the effectiveness and safety of OACs in AF patients with a single non-sex-related stroke risk factor after searching Medline and Embase. Differences between individual stroke risk factors regarding the ischaemic stroke risk in non-anticoagulated AF patients are identified in a meta-analysis, demonstrating the highest increased risk in patients aged 65–74 years old or with diabetes mellitus, followed by heart failure, hypertension and vascular disease. Furthermore, meta-analysis results favour NOACs over VKAs, given their equal effectiveness and superior safety in AF patients at intermediate thromboembolic risk (HR 0.93, 95% CI 0.65 to 1.34 for stroke or systemic embolism; HR 0.60, 95% CI 0.45 to 0.80 for major bleeding; HR 0.48, 95% CI 0.14 to 1.59 for intracranial bleeding; HR 0.58, 95% CI 0.47 to 0.71 for mortality).ConclusionOur systematic review with meta-analysis favours the use of anticoagulation in AF patients with a single non-sex-related stroke risk factor, especially when age ≥65 years or diabetes mellitus is present, with a preference for NOACs over VKAs.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
T.J Jernberg ◽  
E.O Omerovic ◽  
E.H Hamilton ◽  
K.L Lindmark ◽  
L.D Desta ◽  
...  

Abstract Background Left ventricular dysfunction after an acute myocardial infarction (MI) is associated with poor outcome. The PARADISE-MI trial is examining whether an angiotensin receptor-neprilysin inhibitor reduces the risk of cardiovascular death or worsening heart failure (HF) in this population. The aim of this study was to examine the prevalence and prognosis of different subsets of post-MI patients in a real-world setting. Additionally, the prognostic importance of some common risk factors used as risk enrichment criteria in the PARADISE-MI trial were specifically examined. Methods In a nationwide myocardial infarction registry (SWEDEHEART), including 87 177 patients with type 1 MI between 2011–2018, 3 subsets of patients were identified in the overall MI cohort (where patients with previous HF were excluded); population 1 (n=27 568 (32%)) with signs of acute HF or an ejection fraction (EF) &lt;50%, population 2 (n=13 038 (15%)) with signs of acute HF or an EF &lt;40%, and population 3 (PARADISE-MI like) (n=11 175 (13%)) with signs of acute HF or an EF &lt;40% and at least one risk factor (Age ≥70, eGFR &lt;60, diabetes mellitus, prior MI, atrial fibrillation, EF &lt;30%, Killip III-IV and STEMI without reperfusion therapy). Results When all MIs, population 1 (HF or EF &lt;50%), 2 (HF or EF &lt;40%) and 3 (HF or EF &lt;40% + additional risk factor (PARADISE-MI like)) were compared, the median (IQR) age increased from 70 (61–79) to 77 (70–84). Also, the proportion of diabetes (22% to 33%), STEMI (38% to 50%), atrial fibrillation (10% to 24%) and Killip-class &gt;2 (1% to 7%) increased. After 3 years of follow-up, the cumulative probability of death or readmission because of heart failure in the overall MI population and in population 1 to 3 was 17.4%, 26.9%, 37.6% and 41.8%, respectively. In population 2, all risk factors were independently associated with death or readmission because of HF (Age ≥70 (HR (95% CI): 1.80 (1.66–1.95)), eGFR &lt;60 (1.62 (1.52–1.74)), diabetes mellitus (1.35 (1.26–1.44)), prior MI (1.16 (1.07–1.25)), atrial fibrillation (1.35 (1.26–1.45)), EF &lt;30% (1.69 (1.58–1.81)), Killip III-IV (1.34 (1.19–1.51)) and STEMI without reperfusion therapy (1.34 (1.21–1.48))) in a multivariable Cox regression analysis. The risk increased with increasing number of risk factors (Figure 1). Conclusion Depending on definition, post MI HF is present in 13–32% of all MI patients and is associated with a high risk of subsequent death or readmission because of HF. The risk increases significantly with every additional risk factor. There is a need to optimize management and improve outcomes for this high risk population. Figure 1 Funding Acknowledgement Type of funding source: Private company. Main funding source(s): Novartis


BMJ Open ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. e044564
Author(s):  
Kaizhuang Huang ◽  
Jiaying Lu ◽  
Yaoli Zhu ◽  
Tao Cheng ◽  
Dahao Du ◽  
...  

IntroductionDelirium in the postoperative period is a wide-reaching problem that affects important clinical outcomes. The incidence and risk factors of delirium in individuals with acute myocardial infarction (AMI) after primary percutaneous coronary intervention (PCI) has not been completely determined and no relevant systematic review and meta-analysis of incidence or risk factors exists. Hence, we aim to conduct a systematic review and meta-analysis to ascertain the incidence and risk factors of delirium among AMI patients undergoing PCI.Methods and analysesWe will undertake a comprehensive literature search among PubMed, EMBASE, Cochrane Library, PsycINFO, CINAHL and Google Scholar from their inception to the search date. Prospective cohort and cross-sectional studies that described the incidence or at least one risk factor of delirium will be eligible for inclusion. The primary outcome will be the incidence of postoperative delirium. The quality of included studies will be assessed using a risk of bias tool for prevalence studies and the Cochrane guidelines. Heterogeneity of the estimates across studies will be assessed. Incidence and risk factors associated with delirium will be extracted. Incidence data will be pooled. Each risk factor reported in the included studies will be recorded together with its statistical significance; narrative and meta-analytical approaches will be employed. The systematic review and meta-analysis will be presented according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses.Ethics and disseminationThis proposed systematic review and meta-analysis is based on published data, and thus there is no requirement for ethics approval. The study will provide an up to date and accurate incidence and risk factors of delirium after PCI among patients with AMI, which is necessary for future research in this area. The findings of this study will be disseminated through publication in a peer-reviewed journal.PROSPERO registration numberCRD42020184388.


2021 ◽  
Vol 28 (Supplement_1) ◽  
Author(s):  
C Verdicchio ◽  
A Elliott ◽  
R Mahajan ◽  
D Linz ◽  
D Lau ◽  
...  

Abstract Funding Acknowledgements Type of funding sources: None. Introduction  Atrial Fibrillation (AF) is the most common sustained cardiac arrhythmia affecting 1-2% of the global population, with the prevalence of AF increasing dramatically over the past two decades. Although low levels of cardiorespiratory fitness (CRF) and physical activity are predictive of cardiovascular disease onset and mortality, only recently has this emerged as a potential risk factor for AF. Purpose The aim of this meta-analysis was therefore to quantify the relationship between CRF, measured by a symptom limited exercise stress test, and incident AF. We hypothesised that there would be an inverse relationship between CRF and the incidence of AF. Methods The systematic literature review was conducted using PUBMED, MEDLINE and EMBASE databases, with seven studies meeting the inclusion criteria. A random-effects meta-analysis was then used to compare the multivariate risk estimates of the lowest CRF group from each cohort with the group of the highest CRF. Results Data from 206,925 individuals (55.8% males) was used for analysis with a mean age of 55 ± 2.5 years and a mean follow-up period of 10.3 ± 5 years. The total number of AF events across the studies was 19,913. The overall pooled risk of AF in the high-CRF group versus the low-CRF group showed a significant lower risk of incident AF in those with high-CRF (OR: 0.52, 95% CI, 0.44-0.605, p &lt; 0.001). There was evidence of statistical heterogeneity between the studies (I2 = 81%, p &lt; 0.001). AF incidence rates demonstrated an overall decline in rates across the CRF quartiles from low to high. The mean incidence rate for low-CRF was 21 ± 13.4 compared to 6.9 ± 0.7 per 1000 person-years for the high CRF group (p = 0.03). Conclusion There is an inverse association between a lower CRF and an increased risk of AF, with a higher level of CRF protective against AF. This study highlights that low-CRF may be an additional risk factor for AF along with already other established lifestyle-based risk factors such as obesity and hypertension. Exercise interventions should be promoted as a primary prevention strategy in those at risk of developing AF with known risk factors. Future studies are warranted to identify the mechanism(s) through which improved CRF confers a reduction in AF incidence. Abstract Figure. AF risk between high and low-CRF


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