Abstract P618: Cardiac Amyloidosis and Risk of Ischemic Stroke

Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Jens Witsch ◽  
Cenai Zhang ◽  
Santosh B Murthy ◽  
Stephanie Buchman Rutrick ◽  
Parag Goyal ◽  
...  

Background and Purpose: Cardiac amyloidosis is increasingly recognized as an important cause of heart failure. Given the paucity of data on cerebrovascular complications of cardiac amyloidosis, we evaluated whether cardiac amyloidosis is associated with ischemic stroke. Methods: We performed a retrospective cohort study of Medicare beneficiaries using a 5% sample of inpatient and outpatient claims from January 1, 2008 through October 1, 2015. We identified patients with cardiac amyloidosis using International Classification of Diseases, 9th Revision, Clinical Modification ( ICD-9-CM ) code 277.3x in combination with a diagnosis code for heart failure or cardiomyopathy. The primary outcome was ischemic stroke, identified by a previously validated ICD-9-CM code algorithm. We used survival statistics to determine incidence rates. Cox proportional hazard analysis, adjusted for demographics, vascular risk factors, and the Elixhauser comorbidity index, was used to study the risk of ischemic stroke. Results: Among 1.8 million beneficiaries with mean follow-up of 4.6 years (standard deviation ±2.2), 454 (0.03%) had a diagnosis of cardiac amyloidosis. Patients with cardiac amyloidosis were older (78.1±7.4 versus 73.4±7.7 years) and had a greater comorbidity burden than those without the diagnosis. A total of 63,627 (3.6%) developed an ischemic stroke in the entire cohort. The incidence of ischemic stroke was 47 per 1,000 patients per year in those with cardiac amyloidosis compared to 7.8 per 1,000 patients per year in those without cardiac amyloidosis. In the adjusted Cox regression analysis, cardiac amyloidosis was associated with an increased risk of ischemic stroke (HR, 2.4; 95% confidence interval, 1.6-3.6). Conclusions: In a large heterogenous cohort of elderly patients, cardiac amyloidosis was associated with a 2.5-fold heightened risk of ischemic stroke.

Heart ◽  
2020 ◽  
Vol 106 (21) ◽  
pp. 1672-1678
Author(s):  
Constantinos Ergatoudes ◽  
Per-Olof Hansson ◽  
Kurt Svärdsudd ◽  
Annika Rosengren ◽  
Erik Östgärd Thunström ◽  
...  

ObjectiveTo compare two cohorts of middle-aged men from the general population born 30 years apart for incidence and predictors of heart failure (HF).MethodsTwo population samples of men, born in 1913 (n=855) and in 1943 (n=797), were examined at 50 years of age and followed up for 21 years (1963–1994 and 1993–2014). Cox regression analysis was used to examine the impact of different factors on the risk of developing HF.ResultsEighty men born in 1913 (9.4%) and 42 men born in 1943 (5.3%) developed HF during follow-up; adjusted HRs comparing the two cohorts (born 1943 vs 1913) were: 0.46 (95% CI 0.28 to 0.74, p=0.002). In both cohorts, higher body mass index, higher diastolic blood pressure, treatment for hypertension, onset of either atrial fibrillation (AF), ischaemic heart disease and diabetes mellitus were associated with higher risk of HF. Higher heart rate was associated with an increased risk only in men born in 1913, whereas higher systolic blood pressure (SBP), smoking, higher glucose, higher cholesterol and physical inactivity were associated with an increased risk in men born in 1943. AF contributed higher risk of incident HF, whereas SBP and physical inactivity contributed lower risk in men born in 1943 compared with men born in 1913.ConclusionsMen born in 1943 had half the risk of HF after their 50s than those born 30 years earlier. AF, obesity, ischaemic heart disease, diabetes and hypertension remain important precursors of HF.


2021 ◽  
pp. 1-6
Author(s):  
Melvin Parasram ◽  
Neal S. Parikh ◽  
Alexander E. Merkler ◽  
Judy H. Ch’ang ◽  
Babak B . Navi ◽  
...  

<b><i>Introduction:</i></b> Non-traumatic subarachnoid hemorrhage (SAH) is associated with poor long-term functional outcomes, but the risk of ischemic stroke among SAH survivors is poorly understood. <b><i>Objectives:</i></b> The aim of this study was to evaluate the risk of ischemic stroke among survivors of SAH. <b><i>Methods:</i></b> We performed a retrospective cohort study using claims data from Medicare beneficiaries from 2008 to 2015. The exposure was a diagnosis of SAH, while the outcome was an acute ischemic stroke, both identified using previously validated <i>ICD-9-CM</i> diagnosis codes. We used Cox regression analysis adjusting for demographics and stroke risk factors to evaluate the association between SAH and long-term risk of ischemic stroke. <b><i>Results:</i></b> Among 1.7 million Medicare beneficiaries, 912 were hospitalized with non-traumatic SAH. During a median follow-up of 5.2 years (IQR, 2.7–6.7), the cumulative incidence of ischemic stroke was 22 per 1,000 patients per year among patients with SAH, and 7 per 1,000 patients per year in those without SAH. In adjusted Cox models, SAH was associated with an increased risk of ischemic stroke (HR, 2.0; 95% confidence interval, 1.4–2.8) as compared to beneficiaries without SAH. Similar results were obtained in sensitivity analyses, when treating death as a competing risk (sub HR, 3.0; 95% CI, 2.8–3.3) and after excluding ischemic stroke within 30 days of SAH discharge (HR, 1.5; 95% CI, 1.1–2.3). <b><i>Conclusions:</i></b> In a large, heterogeneous national cohort of elderly patients, survivors of SAH had double the long-term risk of ischemic stroke. SAH survivors should be closely monitored and risk stratified for ischemic stroke.


Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Khaled Elkholey ◽  
Zain Ul Abideen Asad ◽  
Lampros Papadimitriou ◽  
Udho THADANI ◽  
Stavros Stavrakis

Background: Atrial fibrillation (AF) is a common comorbidity in heart failure with preserved ejection fraction (HFpEF) and portends an increased risk of cardiovascular events. We sought to identify predictors and develop a risk score of incident AF among patients with HFpEF. Methods: This was an exploratory, post-hoc analysis of the TOPCAT trial. Patients without known AF were included. Cox regression was used to identify independent predictors of incident AF. A risk score was derived from the weighed sum of the regression coefficients of each independent risk factor in the final model using Cox regression analysis. Results: A total of 2174 patients (mean age 67.0±9.4 years; female 55%) without known AF at baseline were included. During a median follow-up of 3 years, 102 (4.7%) patients developed new onset AF. Diabetes (HR=2.1, 95% CI 1.4-3.1; p=0.0002), peripheral arterial disease (HR=2.0, 95% CI 1.2-3.4; p=0.006), elevated (>144meq/dL) sodium (HR=2.1, 95% CI 1.4-3.1; p=0.0002) independently predicted incident AF, whereas current use of angiotensin-converting enzyme inhibitors/angiotensin receptor blockers was protective (HR=0.61, 95% CI 0.38-0.99, p=0.048). Based on the simplified risk score which included these 4 variables, annualized AF incidence rates were 0.8%, 1.8%, and 3.6% in the low (score=0), intermediate (score=1 or 2), and high-risk (score >2) groups, respectively (log rank P<0.0001; Figure). Compared to the low risk group, the intermediate and high risk groups had a 2.5-fold and 5-fold increase in the risk of incident AF, respectively (HR=2.5, 95% CI 1.5-4.0, p=0.0003 and HR=4.9, 95% CI 2.9-9.4, p<0.0001, respectively). Model discrimination was good (c-statistic=0.67; 95% CI 0.61-0.72). Conclusions: A simplified risk score derived from clinical and laboratory characteristics predicts incident AF in patients with HFpEF and, upon further validation, may be used clinically for risk stratification or for AF screening in high risk groups. Figure


Author(s):  
Raimo Jauhiainen ◽  
Jagadish Vangipurapu ◽  
Annamaria Laakso ◽  
Teemu Kuulasmaa ◽  
Johanna Kuusisto ◽  
...  

Abstract Background and aims To investigate the significance of nine amino acids as risk factors for incident cardiovascular disease events in 9,584 Finnish men. Materials and Methods A total of 9,584 men (age 57.4±7.0 years, body mass index 27.2±4.2 kg/m 2) from the METSIM study without cardiovascular disease and type 1 diabetes at baseline were included in this study. A total of 662 coronary artery disease (CAD) events, 394 ischemic stroke events, and 966 cardiovascular disease (CVD, CAD and stroke combined) events were recorded in a 12.3-year follow-up. Amino acids were measured using nuclear magnetic resonance platform. Results In Cox regression analysis phenylalanine and tyrosine were significantly associated with increased risk of CAD and CVD events, and phenylalanine with increased risk of ischemic stroke after the adjustment for confounding factors. Glutamine was significantly associated with decreased risk of stroke and CVD events and nominally with CAD events. Alanine was nominally associated with CAD events. Conclusion We identified alanine as a new amino acid associated with increased risk of CAD and glutamine as a new amino acid associated with decreased risk of ischemic stroke. We also confirmed that phenylalanine and tyrosine were associated with CAD, ischemic stroke, and CVD events.


Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Melvin Parasram ◽  
Neal S Parikh ◽  
Alexander E Merkler ◽  
Babak B Navi ◽  
Hooman Kamel ◽  
...  

Background and Purpose: Non-traumatic subarachnoid hemorrhage (SAH) is associated with poor long-term functional outcomes, but the risk of ischemic stroke among SAH survivors is poorly understood. Methods: We performed a retrospective cohort study using claims data from Medicare beneficiaries from 2008-2015. The exposure was a diagnosis of SAH, while the outcome was an acute ischemic stroke. The exposure and outcomes were identified using previously validated ICD-9-CM diagnosis codes. We excluded patients with prevalent ischemic stroke at the time of SAH diagnosis and those which occurred in the first 90 days after SAH discharge to avoid inclusion of stroke occurring as a medical or procedural complication of SAH. We used Cox regression adjusting for demographics and stroke risk factors to evaluate the association between SAH and long-term risk of ischemic stroke. Results: Among 1.3 million Medicare beneficiaries, 3,171 (0.18%) were diagnosed with non-traumatic SAH. During a median follow-up of 5.3 years (interquartile range [IQR], 2.7- 6.7), the cumulative incidence of ischemic stroke was 92 per 1,000 patients per year among patients with SAH, and 21 per 1,000 patients per year in those without SAH. In multivariable Cox regression analysis, SAH was associated with an increased risk of ischemic stroke (hazard ratio, 2.6; 95% confidence interval, 2.4-2.8) as compared to beneficiaries without SAH. Conclusions: In a large, heterogeneous national cohort of elderly patients, we found that survivors of SAH had more than double the long-term risk of ischemic stroke as compared to those without SAH. SAH survivors should be closely monitored and risk stratified for ischemic stroke.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
S Hendricks ◽  
I Dykun ◽  
B Balcer ◽  
F Al-Rashid ◽  
P Luedike ◽  
...  

Abstract Background Natriuretic peptides (BNP/NT-proBNP) are routinely used for the diagnosis of heart failure and predicts outcome in patients with both heart failure with preserved and reduced ejection fraction. In addition, natriuretic peptides are associated with incident cardiovascular disease manifestation in primary prevention cohorts. Whether the assessment of BNP/NT-proBNP is of value in patients with coronary artery disease but without heart failure has not been investigated in detail. We here evaluate the association of BNP/NT-pro BNP with mortality patients with coronary artery disease but without known chronic heart failure. Methods The present analysis is based on the ECAD registry of patients undergoing conventional coronary angiography at the Department of Cardiology and Vascular Medicine between 2004 and 2019. For this analysis, we excluded all patients with a diagnosis of heart failure or with elevated BNP/NT-proBNP values at baseline (&gt;100pg/nl for BNP, &gt;400pg/nl for NTproBNP). Moreover, patients with missing follow-up information or without BNP/NT-proBNP levels at admission were excluded. As either BNP or NT-proBNP was available for singular patients, we standardized BNP and NT pro BNP levels based on percentile rank in levels from 0 to 99. Cox regression analysis was used to determine the association of BNP/NT-proBNP with morality in unadjusted and risk factor adjusted models with effect sizes depicted per one standard deviation change in BNP/NT-proBNP rank. Results Overall, 3738 patients (mean age: 62.8±12.6 years, 71% male) were included in our analysis. During a mean follow-up of 2.6±3.5 years, 172 deaths of any cause occurred. Patients without fatal events had significantly lower BNP/NT-prBNP values compared to patients who died (48.4±28.8 vs. 58.4±27.5, p&lt;0.0001). In unadjusted cox regression analysis, BNP/NT-proBNP increase by one standard deviation was associated with a 47% increased risk of morality (HR (95% CI): 1.47 (1.25–1.72), p&lt;0.0001). Upon adjustment for cardiovascular risk factors, the significant link between BNP/NT-proBNP levels and morality remained (HR (95% CI): 1.38 (1.14–1.66). Effect sizes were similar for patients receiving coronary revascularization therapy as part of the coronary angiography (1.32 [1.03–1.70], p=0.03) as well as for patients with purely diagnostic procedures (1.58 [1.28–1.94], p&lt;0.0001). Conclusion In patients without heart failure undergoing coronary angiography, BNP/NT-proBNP levels stratify mortality risk independently of traditional cardiovascular risk factors. Our results support the routine assessment of natriuretic peptides also in patients without heart failure to identify patients at increased risk. Funding Acknowledgement Type of funding source: None


2021 ◽  
Vol 12 ◽  
Author(s):  
Eun Ji Lee ◽  
Cheol Min Shin ◽  
Dong Ho Lee ◽  
Kyungdo Han ◽  
Sang Hyun Park ◽  
...  

ObjectivesTo evaluate the risk of fracture in individuals with a history of cholecystectomy in Korean population.MethodsIndividuals (n = 143,667) aged ≥ 40 y who underwent cholecystectomy between 2010 and 2015 and the controls (n = 255,522), matched by age and sex, were identified from the database of the Korean National Health Insurance Services. The adjusted hazard ratio (aHR) and 95% confidence interval (CI) of fracture were estimated following cholecystectomy, and a Cox regression analysis was performed.ResultsThe incidence rates of all fractures, vertebral, and hip fractures were 14.689, 6.483 and 1.228 cases per 1000 person-years respectively in the cholecystectomy group, whereas they were 13.862, 5.976, and 1.019 cases per 1000 person-years respectively in the control group. After adjustment for age, sex, income, place of residence, diabetes mellitus, hypertension, dyslipidemia, smoking, alcohol drinking, exercise, and body mass index, patients who underwent cholecystectomy showed an increased risk of all fractures, vertebral fractures, and hip fractures (aHR [95% CI]: 1.095 [1.059-1.132], 1.134 [1.078-1.193], and 1.283 [1.139-1.444] for all fractures, vertebral fractures, and hip fractures, respectively). The risk of vertebral fractures following cholecystectomy was more prominent in the young age group (40 to 49 y) than in the old age group (≥ 65 y) (1.366 [1.082-1.724] vs. 1.132 [1.063-1.206], respectively). However, the incidence of hip fractures following cholecystectomy was not affected by age.ConclusionIndividuals who underwent cholecystectomy have an increased risk of fracture. In the younger population, the risk of vertebral fractures may be further increased following cholecystectomy.


2020 ◽  
Author(s):  
Anastase Dzudie ◽  
Blaise Barche ◽  
Sidick Mouliom ◽  
Ariane Nouko ◽  
Fogue Raissa ◽  
...  

AbstractBackgroundHigher resting heart rate (HR) is associated with mortality amongst Caucasians with heart failure (HF), but its significance has yet to be established in sub-Saharan Africans in whom HF differs in terms of characteristics and etiologies.ObjectivesWe assessed the association of HR with all-cause mortality in patients with HF in sub-Saharan Africa.MethodsThe Douala HF registry (Do–HF) is an ongoing prospective data collection on patients with HF receiving care at four cardiac referral services in Douala, Cameroon. Patients included in this report were followed-up for 12 months from their index admission, for all-cause mortality. We used Cox-regression analysis to study the association of HR with all-cause mortality during follow-up.ResultsOf 347 patients included, 343 (98.8%) completed follow-up. The mean age was 64±14 years, 176 (50.7%) were female, and median admission HR was 85 bpm. During a median follow-up of 12 months, 78 (22.7%) patients died. Mortality increased steadily with HR increase and ranged from 12.2% in the lower quartile of HR (≤69 bpm) to 34.1% in the upper quartile of HR (>100 bpm). Hazard ratio of 12-month death per 10 bpm higher heart rate was 1.16 (1.04–1.29), with consistent effects across most subgroups, but a higher effect in participants with hypertension vs those without (interaction p=0.044).ConclusionHeart rate was independently associated with increased risk of all-cause mortality in this study, particularly among participants with hypertension. The implication of this finding for risk prediction or reduction should be actively investigated.


Author(s):  
Hui‐Lin Hu ◽  
Hao Chen ◽  
Chun‐Yan Zhu ◽  
Xin Yue ◽  
Hua‐Wei Wang ◽  
...  

Background Hypertrophic cardiomyopathy (HCM) is considered to be the most common cause of sudden death in young people and is associated with an elevated risk of mood disorders. Depression has emerged as a critical risk factor for development and progression of coronary artery disease; however, the association between depression and HCM outcomes is less clear. We sought to examine the impact of depression on clinical outcomes in patients with HCM. Methods and Results Between January 2014 and December 2017, 820 patients with HCM were recruited and followed for an average of 4.2 years. End points were defined as sudden cardiac death (SCD) events and HCM‐related heart failure events. A Chinese version of the Structured Clinical Interview followed the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition and was used to diagnose depression. During the follow‐up period, SCD events occurred in 75 individuals (21.8 per 1000 person‐years), and HCM‐related heart failure events developed in 149 individuals (43.3 per 1000 person‐years). Kaplan–Meier cumulative incidence curves showed a significant association of depression disorders with SCD events (log‐rank P =0.001) and HCM‐related heart failure events (log‐rank P =0.005). A multivariate Cox regression analysis indicated that depression was an independent predictor of SCD events and HCM‐related heart failure events (41.9 versus 21.7 per 1000 person‐years; adjusted hazard ratio [HR], 1.9; 95% CI, 1.6–2.3; P <0.001; and 69.9 versus 38.6 per 1000 person‐years; HR, 1.8; 95% CI, 1.6–2.1; P <0.001, respectively). Conclusions Depression is common among patients with HCM. The diagnosis of depression is significantly and independently associated with an increased risk of SCD events and heart failure events in patients with HCM.


2020 ◽  
Vol 17 (3) ◽  
pp. 218-223
Author(s):  
Haichao Wang ◽  
Li Gong ◽  
Xiaomei Xia ◽  
Qiong Dong ◽  
Aiping Jin ◽  
...  

Background: Depression and anxiety after stroke are common conditions that are likely to be neglected. Abnormal red blood cell (RBC) indices may be associated with neuropsychiatric disorders. However, the association of RBC indices with post-stroke depression (PSD) and poststroke anxiety (PSA) has not been sufficiently investigated. Methods: We aimed to investigate the trajectory of post-stroke depression and anxiety in our follow- up stroke clinic at 1, 3, and 6 months, and the association of RBC indices with these. One hundred and sixty-two patients with a new diagnosis of ischemic stroke were followed up at 1, 3, and 6 months, and underwent Patient Health Questionnaire-9 (PHQ-9) and the general anxiety disorder 7-item (GAD-7) questionnaire for evaluation of depression and anxiety, respectively. First, we used Kaplan-Meier analysis to investigate the accumulated incidences of post-stroke depression and post-stroke anxiety. Next, to explore the association of RBC indices with psychiatric disorders after an ischemic stroke attack, we adjusted for demographic and vascular risk factors using multivariate Cox regression analysis. Results: Of the 162 patients with new-onset of ischemic stroke, we found the accumulated incidence rates of PSD (1.2%, 17.9%, and 35.8%) and PSA (1.2%, 13.6%, and 15.4%) at 1, 3, and 6 months, respectively. The incident PSD and PSA increased 3 months after a stroke attack. Multivariate Cox regression analysis indicated independent positive associations between PSD risk and higher mean corpuscular volume (MCV) (OR=1.42, 95% CI=1.16-1.76), older age (OR=2.63, 95% CI=1.16-5.93), and a negative relationship between male sex (OR=0.95, 95% CI=0.91-0.99) and PSA. Conclusion: The risks of PSD and PSA increased substantially 3 months beyond stroke onset. Of the RBC indices, higher MCV, showed an independent positive association with PSD.


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