Abstract 13677: Left Atrial Structure and Function in Relation to Incident Stroke/TIA and Dementia: The Multi-ethnic Study of Atherosclerosis

Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Mohammadali Habibi ◽  
Mytra Zareian ◽  
Bharath Ambale Venkatesh ◽  
Sanaz Samiei ◽  
Elzbieta Chamera ◽  
...  

Introduction: Increased left atrial (LA) size and reduced LA function are known predictors of atrial fibrillation (AF). Evidence also links increased LA size and stroke. We sought to examine the association of LA function, measured with cardiac magnetic resonance imaging (CMR) and incident stroke/TIA and dementia. Methods: This case-cohort study compared LA size and function in 180 MESA participants with incident Stroke/TIA and 95 with incident dementia, over a median follow up of 10.7 years, to 550 participants randomly selected from the whole MESA cohort. All individuals were free of clinical cardiovascular and major valvular heart disease. Phasic LA volumes, LA emptying fractions (LAEF) and peak strain were quantified in sinus rhythm using tissue-tracking CMR. Vascular neurologists adjudicated stroke events by medical record review. Dementia cases were identified using ICD9 codes from hospital records. Modified Cox proportional hazard models weighted for the stratified case-cohort sampling design was used to examine the associations. Results: Incident Stroke/TIA (age 67 ± 9 years, 45% male) and dementia cases (age 74 ± 6 years, 58% male) were older than the subcohort population (age: 61 ± 10, 49% male). In multivariable analysis adjusted for standard cardiovascular risk factors and left ventricular ejection fraction, lower peak LA strain and passive LAEF were associated with both incident stroke/TIA and dementia. After further adjustment for incident AF, the associations were attenuated for peak LA strain but remained significant for passive LAEF (HR for incident Stroke/TIA: 0.72 per SD 95% CI: 0.55-0.93, p=0.013 and for incident dementia: 0.59 per SD 95% CI: 0.37-0.95, p=0.031). Conclusions: Reduced LA conduit function was associated with incident Stroke/TIA and dementia independent of other cardiovascular risk factors and incident AF. Assessment of LA function may add further information in risk stratifying individuals at risk for stroke and dementia.

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Brygida Przywara-Chowaniec ◽  
Dominika Blachut ◽  
Jan Harpula ◽  
Marcin Bereś ◽  
Agnieszka Nowak ◽  
...  

Systemic lupus erythematosus is a rare autoimmune disease. It leads to an increased production of proinflammatory molecules that accelerates atherogenesis and could cause an endothelium dysfunction. The aim of the study was to assess cardiovascular risk factors such as BMI and lipid profile as well as left ventricular ejection fraction among patients with SLE, and a correlation of these factors with duration of the disease. Materials and Methods. The researched group consisted of patients with SLE, being under control of the outpatient clinic of cardiology. This group included 38 patients among whom 34 were women (56.17 ± 11.05 years) and 4 were men (65.50 ± 9.22 years). The control group consisted of 19 healthy women (53.31 ± 11.94 years) and 2 healthy men (38.51 ± 7.53 years). Measurements were taken in the same conditions by trained medical staff. Results. Excessive body weight (BMI >25 kg/m2) was more frequent in the SLE group, but it was not statistically significant (55.26% vs. 52.38%, p = 0.6159 ). LVEF values were lower in their searched group, and this factor showed statistical significance (53.92% ± 6.46 vs. 58.67% ± 4.69, p = 0.0044 ). Thickness of the IMT was higher and statistically important among patients with SLE, both in left (1.22 ± 0.27 mm vs. 0.7 ± 0.21 mm, p = 0.0001 ) and right common carotid artery (1.16 ± 0.26 mm vs. 0.59 ± 0.15 mm, p = 0.0001 ), compared to the controls. Conclusions. Patients with SLE are at greater risk of developing cardiovascular diseases as the illness progresses. The activity of the disease according to the SLEDAI-2K scale may have an impact on the LVEF values which was significantly decreased in the group with active disease, but further thorough investigation is required to fully evaluate the impact of individual components of the disease and its treatment on the CVD development and mortality.


2017 ◽  
Vol 35 (15_suppl) ◽  
pp. e12043-e12043
Author(s):  
Rossella Martinello ◽  
Paolo Becco ◽  
Patrizia Vici ◽  
Mario Airoldi ◽  
Lucia Del Mastro ◽  
...  

e12043 Background: Significant and symptomatic cardiac comorbidity (CC) is a contraindication to adjuvant trastuzumab (T) in breast cancer patients (pts). However, some pts with asymptomatic, non-limiting CC and normal baseline left ventricular ejection fraction (LVEF) receive T in the clinical practice. We sought to describe the tolerability of T in these pts. Methods: Retrospective analysis of pts with baseline asymptomatic non-limiting CC receiving adjuvant T with chemotherapy (CT) at 6 Institutions between Jul 2006 and Jan 2016. Results: Thirty-seven patients HER2-positive, operable BC at high risk of relapse BC were studied. Median age was 64y (range 36-82, 80% post-menopausal), median baseline LVEF was 61% (range 50-85%) and median BMI 26 (18-42, obesity 22%). Thirteen patients (35%) received T with adjuvant anthracycline and taxane-based, 19 (51%) taxane-based and 3 (8%) other adjuvant CT regimens (13 pts sequential, 22 pts concomitant with CT) and 2 (5%) with endocrine therapy. Prior non-limiting CC was ischemic heart disease (35%), valvular disease (30%), atrial fibrillation (19%), conduction disorders (13%), aortic aneurism (3%), and other (19%). Nine (29%) pts experienced TRC: congestive heart failure (1 pt, 3%), LVEF reduction (6 pts, 16%) and rhythm disturbances (1 pt, 3%). TRC occurred in pts with ongoing multiple cardiovascular risk factors (i.e. obesity and hypertension). Seven pts discontinued T because of TRC (19%), 5 permanently (14%) and 2 temporarily (5%). These latter pts, were able to resume and complete T after TRC resolution. At the end of adjuvant treatment, all pts showed LVEF within normal limits, except one of those who experienced a TRC (last FU value 46 %). Conclusions: This is the first analysis of TRC in pts receiving adjuvant T in the presence prior non-limiting CC. Despite the small size, our analysis shows that T is feasible in these pts and most of the TRC events were reversible at T withdrawal. Caution is needed in pts with significant ongoing cardiovascular risk factors, but when adjuvant T is deemed beneficial on breast cancer outcomes, non-limiting CC should not preclude treatment.


2019 ◽  
Vol 8 (10) ◽  
pp. 1721 ◽  
Author(s):  
Mauro Feola ◽  
Marzia Testa ◽  
Cinzia Ferreri ◽  
GianLuca Rosso ◽  
Arianna Rossi ◽  
...  

The arterial stiffness in the pathogenesis and clinical outcome in heart failure (HF) patients still needs to be clarified. An increased pulse wave velocity (PWV) in HF patients in comparison with healthy subjects and cardiovascular risk factors (CVRF) patients has been demonstrated. The aim of this study was to evaluate the arterial stiffness in HF patients in comparison to control populations. Methods: Consecutive patients admitted for decompensated heart failure underwent echocardiogram and evaluation of arterial stiffness by measuring the PWV and the augmentation index (AIx75). The arterial stiffness was also calculated in a control group formed by healthy volunteers and in CVRF subjects. Results: Fifty-nine HF patients (62% males; age 75 years) with mean left ventricular ejection fraction (LVEF) 38% and N-terminal pro B-type natriuretic peptide (NT-proBNP) (8111 pg/mL) entered the study. The HF population were compared with 22 healthy controls (age 58 years) and 20 CVRF patients (age 72 years). The analysis of PWV demonstrated a velocity of 10.6 m/s (9–12.1 m/s), 11.7 m/second (10.4–12.8 m/s), and 10.1 m/second (8.6–10.8m/s) in controls, CVRF, and HF patients (p = 0.01). AIx75 was seen to be higher in the CVRF group vs. HF patients (34% vs. 22%, p = 0.001). In HF patients PWV was inversely correlated with the glomerular filtration rate (r = –0.40; p = 0.002) and directly with central systolic pressure (SP) (r = 0.29; p = 0.02), brachial SP (r = 0.33; p = 0.01) as well as AIx75 correlated with GFR (r = −033; p = 0.01). Conclusion: PWV proved to be different in HF patients in comparison with CVRF/healthy population. The strongest correlation was revealed between the values of PWV/AIx75 and renal function.


Circulation ◽  
2018 ◽  
Vol 137 (suppl_1) ◽  
Author(s):  
Sonia Ponce ◽  
Matthew A Allison ◽  
Jordan A Carlson ◽  
Krista M Perreira ◽  
Matthew S Loop ◽  
...  

Introduction: Heart failure represents a significant public health problem because of increasing prevalence and lack of effective medical treatment. Hispanic/Latinos have a high burden of cardio-metabolic comorbidities and adverse socioeconomic conditions that place them at risk for heart failure. However, some literature indicates that among Hispanics/Latinos, residing in areas with high Hispanic/Latino ethnic density is associated with better health outcomes. There is a paucity of data on the effect of Hispanic/Latino ethnic density and risk markers for heart failure. Therefore, we evaluated the association between Hispanic/Latino ethnic concentration and several echocardiographic measures of left ventricular structure and function. Methods: Data on baseline characteristics from the Hispanic Communities Health Study/Study of Latinos (HCHS/SOL), echocardiographic measures of cardiac structure and function (ECHO-SOL), and neighborhood Hispanic/Latino ethnic density (San Diego SOL-CASAS) were analyzed. Hispanic/Latino ethnic density was calculated for each person based on an 800-m buffer around their home. Hispanic/Latino ethnic density was then calculated using data from the 2010 Census as the percent of Hispanic/Latinos divided by the total population at the Census block level and calculating an average value for all Census blocks that overlapped with the participant's address. Multivariable linear regression analysis adjusting for personal demographics and cardiovascular risk factors was conducted. Results: A total of 350 participants with data from all three databases were included in the analysis. The mean age was 55±7 years, 69% were female, and 26%, 38%, and 43% had diabetes, hypertension, and dyslipidemia, respectively. Thirty-six percent had less than high school education, and 58% were low income. In models adjusting for age, sex, education level, income, acculturation, and cardiovascular risk factors, a 1-percent higher Hispanic/Latino ethnic density was associated with lower left ventricular mass (0.47, p-value = 0.02). Other echocardiographic measures of cardiac structure and function were not significantly related to Hispanic/Latino ethnic density. Conclusion: Higher Hispanic/Latino ethnic density was associated with lower LVM independent of personal SES and common cardiovascular risk factors. These findings suggest that Hispanic/Latinos residing in areas with higher Hispanic/Latino ethnic density might have a lower risk of future HF. However, further research to understand the specific factors that mediate the observed associations are necessary.


2019 ◽  
Author(s):  
Nichole M. Rogovoy ◽  
Stacey J. Howell ◽  
Tiffany L. Lee ◽  
Christopher Hamilton ◽  
Erick A. Perez-Alday ◽  
...  

AbstractBackgroundIn end-stage kidney disease the dialytic cycle relates to the rate of sudden cardiac death. We hypothesized that circadian, dialytic cycles, paroxysmal arrhythmias, and cardiovascular risk factors are associated with periodic changes in heart rate and heart rate variability (HRV) in incident dialysis patients.MethodsWe conducted a prospective ancillary study of the Predictors of Arrhythmic and Cardiovascular Risk in End Stage Renal Disease cohort (n=28; age 54±13 y; 57% men; 96% black; 33% with a history of structural heart disease; left ventricular ejection fraction 70±9%). Continuous ECG monitoring was performed using an ECG patch (Zio Patch, iRhythm) and short-term HRV was measured for three minutes every hour. HRV was measured by root mean square of the successive normal-to-normal intervals (rMSSD), high and low frequency power, Poincaré plot, and sample and Renyi entropy.ResultsArrhythmias were detected in 46% (n=13). Non-sustained ventricular tachycardia (VT) was more frequent during dialysis or within 6 hours post-dialysis, as compared to pre-or between-dialysis (63% vs. 37%, P=0.015), whereas supraventricular tachycardia was more frequent pre-/ between-dialysis, as compared to during-/ post-dialysis (84% vs. 16%, P=0.015). In adjusted for cardiovascular disease and its risk factors autoregressive conditional heteroscedasticity panel (ARCH) model, VT events were associated with increased heart rate by 11.2 (95%CI 10.1-12.3) bpm (P<0.0001). During regular dialytic cycle, rMSSD demonstrated significant circadian pattern (Mesor 10.6(0.9-11.2) ms; Amplitude 1.5(1.0-3.1) ms; Peak at 02:01(20:22-03:16) am; P<0.0001), which was abolished on a second day interdialytic extension (adjusted ARCH trend for rMSSD −1.41(−1.67 to −1.15) ms per 24h; P<0.0001).ConclusionCardiac arrhythmias associate with dialytic phase. Regular dialytic schedule preserves physiological circadian rhythm, but the second day without dialysis is characterized by parasympathetic withdrawal and a steady increase in sympathetic predominance.Subject TermsArrhythmias, Autonomic Nervous System, Electrocardiology (ECG), Treatment.


2020 ◽  
Vol 2020 ◽  
pp. 1-7 ◽  
Author(s):  
Beata Uziębło-Życzkowska ◽  
Paweł Krzesiński ◽  
Agnieszka Jurek ◽  
Agnieszka Kapłon-Cieślicka ◽  
Iwona Gorczyca ◽  
...  

Introduction. Atrial fibrillation (AF) is associated with high risk of ischemic stroke. The most frequent thrombus location in AF is the left atrial appendage (LAA). Transthoracic echocardiography (TTE) is a basic diagnostic examination in patients (pts) with AF. Objectives. To analyse the relations between basic echocardiographic features, well-established stroke risk factors, type of AF, and anticoagulation therapy with the incidence of left atrial appendage thrombus (LAAT). Patients and Methods. The study group consisted of 768 pts with AF (mean age, 63 years), admitted to three high-reference cardiology departments. Five hundred and twenty-three pts were treated with non-vitamin K antagonist oral anticoagulants (NOACs) and 227 (30%) with vitamin K antagonists (VKAs). The subjects underwent TTE and transesophageal echocardiography (TEE) before cardioversion or ablation. Results. LAAT was significantly more frequent in pts with reduced left ventricular ejection fraction (LVEF): in 10.6% (7 pts) with LVEF<40% and in 9.0% (9 pts) with LVEF 40-49%, while only in 5.5% (33 pts) with LVEF>50%. Compared to pts without LAAT, those with LAAT presented with lower LVEF and higher left atrial diameter (LAD). Multivariate logistic regression revealed the following variables as independent predictors of LAAT: previous bleeding, treatment with VKA, and LVEF. Conclusion. LAAT is related to lower LVEF and higher LAD. LVEF is one of the independent predictors of LAAT. Even in the case of adequate anticoagulant therapy, it might be prudent to consider TEE before cardioversion or ablation in patients with low LVEF and LA enlargement, especially in the coexistence of other thromboembolic risk factors.


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