scholarly journals Beta-adrenergic reactivity of erythrocytes and the progression of heart failure in patients after myocardial infarction

2020 ◽  
Vol 25 (1) ◽  
pp. 20-25
Author(s):  
A. A. Garganeeva ◽  
V. A. Aleksandrenko ◽  
E. A. Kuzheleva ◽  
T. Yu. Rebrova

Aim. To identify the associations between beta-adrenergic reactivity of erythrocytes and the progression of heart failure (HF) in patients after myocardial infarction (MI).Material and methods. The study included 50 patients with HF and history of MI 6 months ago. To determine the level of sympathoadrenal system activity, we analyzed beta-adrenergic reactivity by changing the osmotic resistance of erythrocytes by use of adrenoceptor blocking agent.Results. The frequency of HF progression after index MI was 26% (n=13). All patients were divided into 2 groups depending on the presence/absence of HF progression in the postinfarction period. When determining beta-adrenergic reactivity, it was found that patients with HF progression compared with patients without it had the higher level of beta-adrenergic reactivity of membrane (β-ARM) of erythrocytes: 58,8 (50,9; 78,0) CU and 46,8 (38,0; 66,3) CU, p=0,025). A ROC analysis made it possible to establish the β-ARM level ≥49,53 CU a cut-off point, which can be considered as a marker of HF progression in patients after MI (sensitivity 92,3%, specificity 62,2%). This level of β-ARM is associated with a more than five-fold increase of HF progression risk in patients after MI (OR 5,48; 95% CI 1,28-23,37; p=0,024).Conclusion. In patients with HF and MI history, there is a decrease in the adrenergic reactivity of erythrocyte cell membrane, which is reflected by an increase of β-ARM above normal range of 20 CU. At the same time, β-ARM in patients with HF progression compared with patients without it is significantly increased. Established cut-off point of β-ARM (≥49,53 CU) allows predicting the HF progression with high sensitivity and specificity.

2016 ◽  
Vol 72 (1) ◽  
Author(s):  
Alberto Genovesi Ebert ◽  
Furio Colivicchi ◽  
Marco Malvezzi Caracciolo ◽  
Carmine Riccio

The prevention of symptomatic heart failure represents the treatment of patients in the A and B stages of AHA/ACC heart failure classification. Stage A refers to patients without structural heart disease but at risk to develop chronic heart failure. The major risk factors in stage A are hypertension, diabetes, atherosclerosis, family history of coronary artery disease and history of cardiotoxic drug use. In this stage, blockers hypertension is the primary area in which beta blockers may be useful. Beta blockers seem not to be superior to other medication in reducing the development of heart failure due to hypertension. Stage B heart failure refers to structural heart disease but without symptoms of heart failure. This includes patients with asymptomatic valvular disease, asymptomatic left ventricular (LV) dysfunction, previous myocardial infarction with or without LV dysfunction. In asymptomatic valvular disease no data are available on the efficacy of beta blockers to prevent heart failure. In asymptomatic LV dysfunction only few asymptomatic patients have been enrolled in the trials which tested beta blockers. NYHA I patients were barely 228 in the MDC, MERIT and ANZ trials altogether. The REVERT trial was the only trial focusing on NYHA I patients with LV ejection fraction less than 40%. Metoprolol extended release on top of ACE inhibitors ameliorated LV systolic volume and ejection fraction. A post hoc analysis of the SOLVD Prevention trial demonstrated that beta blockers reduced death and development of heart failure. Similar results were reported in post MI patients in a post hoc analysis of the SAVE trial (Asymptomatic LV failure post myocardial infarction). In the CAPRICORN trial about 65% of the patients were not taking diuretics and then could be considered asymptomatic. The study revealed a reduction in mortality and a non-significant trend toward reduction of death and hospital admission for heart failure. Conclusions: beta blockers are not specifically indicated in stage A heart failure. On the contrary, in most of the stage B patients, and particularly after MI, beta blockers are indicated to reduce mortality and, probably, also the progression toward symptomatic heart failure.


Author(s):  
Arjola Bano ◽  
Nicolas Rodondi ◽  
Jürg H. Beer ◽  
Giorgio Moschovitis ◽  
Richard Kobza ◽  
...  

Background Diabetes is a major risk factor for atrial fibrillation (AF). However, it remains unclear whether individual AF phenotype and related comorbidities differ between patients who have AF with and without diabetes. This study investigated the association of diabetes with AF phenotype and cardiac and neurological comorbidities in patients with documented AF. Methods and Results Participants in the multicenter Swiss‐AF (Swiss Atrial Fibrillation) study with data on diabetes and AF phenotype were eligible. Primary outcomes were parameters of AF phenotype, including AF type, AF symptoms, and quality of life (assessed by the European Quality of Life‐5 Dimensions Questionnaire [EQ‐5D]). Secondary outcomes were cardiac (ie, history of hypertension, myocardial infarction, and heart failure) and neurological (ie, history of stroke and cognitive impairment) comorbidities. The cross‐sectional association of diabetes with these outcomes was assessed using logistic and linear regression, adjusted for age, sex, and cardiovascular risk factors. We included 2411 patients with AF (27.4% women; median age, 73.6 years). Diabetes was not associated with nonparoxysmal AF (odds ratio [OR], 1.01; 95% CI, 0.81–1.27). Patients with diabetes less often perceived AF symptoms (OR, 0.74; 95% CI, 0.59–0.92) but had worse quality of life (β=−4.54; 95% CI, −6.40 to −2.68) than those without diabetes. Patients with diabetes were more likely to have cardiac (hypertension [OR, 3.04; 95% CI, 2.19–4.22], myocardial infarction [OR, 1.55; 95% CI, 1.18–2.03], heart failure [OR, 1.99; 95% CI, 1.57–2.51]) and neurological (stroke [OR, 1.39, 95% CI, 1.03–1.87], cognitive impairment [OR, 1.75, 95% CI, 1.39–2.21]) comorbidities. Conclusions Patients who have AF with diabetes less often perceive AF symptoms but have worse quality of life and more cardiac and neurological comorbidities than those without diabetes. This raises the question of whether patients with diabetes should be systematically screened for silent AF. Registration URL: https://www.clinicaltrials.gov ; Unique Identifier: NCT02105844.


Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Patrick M Hyland ◽  
Jiaman Xu ◽  
Changyu Shen ◽  
Lawrence Markson ◽  
Warren J Manning ◽  
...  

Introduction: The association between baseline patient characteristics and the long-term utilization of transthoracic echocardiography (TTE) is unknown and may help focus value-based care initiatives. Methods: TTE reports from patients with ≥ 2 TTEs at our institution were linked to 100% Medicare Fee-for-service inpatient claims, 1/1/2000 – 12/31/2017. To avoid inclusion of individuals with short-interval follow-up, TTEs with < 1 year between studies were excluded. Validated claims algorithms were used to create 12 baseline cardiovascular comorbidities. Multivariable Poisson regression was used to estimate adjusted rates of TTE intensity according to baseline comorbidities. Results: Over a median (IQR) follow-up of 5.8 (3.1 – 9.5) years, 18,579 individuals (69.3 ± 12.8 years; 50.5% female) underwent a total of 59,759 TTEs (range 2 – 59). The median TTE intensity was 0.64 TTEs/patient/year (IQR 0.35 – 1.24; range 0.11 – 22.02). The top five contributors to TTE intensity were heart failure, chronic kidney disease, history of myocardial infarction, smoking, and hyperlipidemia ( Figure ). Female sex was associated with decreased TTE utilization (adjusted RR 0.95, 95% CI 0.94-0.96, p < 0.0001). Atrial fibrillation, hypertension, and history of ischemic stroke or transient ischemic attack were not significantly related to TTE intensity after multivariable adjustment (all p > 0.05). Conclusions: Among Medicare beneficiaries with ≥ 2 TTEs at our institution, the median TTE intensity was 0.64 TTEs/patient/year but varied widely. Heart failure, chronic kidney disease, and history of myocardial infarction were the strongest predictors of increased utilization. Female sex was associated with decreased utilization, reflecting broader disparities in utilization of cardiovascular procedures. Further research is needed to clarify reasons for this sex disparity and associations with cardiovascular outcomes.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
M Anguita ◽  
A Sambola Ayala ◽  
J Elola ◽  
J L Bernal ◽  
C Fernandez ◽  
...  

Abstract Background Recent studies reported a decrease in the mortality of ST-elevation myocardial infarction (STEMI) patients. This favorable evolution could not extend to women. The interaction between gender and mortality in STEMI remains controversial. Purpose To assess the impact of female sex on mortality of patients with STEMI through of period of 11 years. Methods We conducted a retrospective longitudinal study using information provided by the minimal database system of the Spanish National Health System to identify all hospitalizations in patients aged 35–94 years with the principal diagnosis of STEMI from 2005–2015. Results A total of 325,017 STEMI were identified. Of them, 273,182 were included, and 106,277 (38.8%) were women. Women were older than men and had more comorbidities. Through the study period 53% men vs 37.2% underwent PTCA; women presented more frequently heart failure, shock and stroke than men (p<0.001, respectively). The mean crude in-hospital mortality rate for the whole study period was higher in women (OR: 2.18; 95% CI: 2.12.-2.23, p<0.0001). Female sex was independently associated with higher in-hospital mortality (adjusted OR: 1.18; 95% CI: 1.14–1.22, p<0.001) (Table 1). The risk was maintained through the whole study period (lower OR: 1.14 in 2014; higher OR: 1.28 in 2006). Table 1. Variables independently associated with in-hospital mortality adjusted by risk in a multilevel logistic regression model, 2005–2015 STEMI In-hospital mortality Odds Ratio P 95% CI Woman 1.18 <0.001 1.14 1.22 Age 1.06 <0.001 1.06 1.06 History of PTCA 1.58 <0.001 1.40 1.77 Congestive heart failure 1.26 <0.001 1.22 1.30 Acute Myocardial Infarction 1.84 <0.001 1.54 2.20 Anterior myocardial infarction 1.47 <0.001 1.23 1.76 Cardio-respiratory failure or shock 15.25 <0.001 14.78 15.75 Hypertension 0.81 <0.001 0.79 0.84 Stroke 5.76 <0.001 5.18 6.42 Cerebrovascular disease 0.86 <0.001 0.79 0.93 Renal failure 1.95 <0.001 1.88 2.02 Vascular disease and complications 7.03 <0.001 5.72 8.63 CI, Confidence Interval. Conclusions Female sex is an independent predictor of mortality in patients with STEMI in Spain, maintaining through a period of the 11 years.


2019 ◽  
Vol 105 (5) ◽  
pp. 1670-1681 ◽  
Author(s):  
Yue Zhou ◽  
Yajing Huang ◽  
Xiaoyun Ji ◽  
Xiang Wang ◽  
Liyan Shen ◽  
...  

Abstract Context The goal of the meta-analysis was to evaluate the effect of pioglitazone on the primary and secondary prevention of cardiovascular diseases (CVDs) and renal adverse events in patients with or at high risk of type 2 diabetes mellitus (T2DM). Design Randomized controlled trials (RCTs) comparing pioglitazone with any control were identified through PubMed, Embase, and the Cochrane Library. Cardiovascular outcomes included major adverse cardiovascular events (MACEs, defined as the composite of nonfatal myocardial infarction, nonfatal stroke, and cardiovascular death), hospitalization for heart failure, and all-cause mortality. Renal outcomes included change in urinary albumin to creatinine ratio and 24-hour urinary protein excretion. Weighted mean difference (WMD) and risk ratio (RR) with 95% confidence intervals (CIs) were pooled. Results A total of 26 studies with 19 645 participants were enrolled. Pioglitazone reduced the risk of MACE (RR, 0.8 [95% CI, 0.7–0.9]), with benefit only seen in patients with a history of established CVDs (0.8 [0.7–0.9]) and not in those without (1.0 [0.7–1.3]). Regarding the individual components, pioglitazone reduced the risk of nonfatal myocardial infarction (0.8 [0.6–1.0]) and nonfatal stroke (0.8 [0.7–0.9]), which was confined to patients with a history of established CVDs, whereas no treatment effect was found on cardiovascular death (1.0 [0.7–1.2]) regardless of the presence of established CVDs. Pioglitazone increased the risk of hospitalization for heart failure (1.3 [1.1–1.6]) and had no treatment effect on all-cause mortality (1.0 [0.8–1.1]). Pioglitazone reduced albuminuria by 18.5% (WMD 18.5% [95% CI, 21.1-16.0]), with a similar benefit in patients with different renal function categories. Conclusions Pioglitazone should be considered in patients with or at high risk of T2DM for the prevention of cardiovascular endpoints, especially in those with a history of established CVD who might benefit the most. Robust reductions in progression of renal disease are seen regardless of baseline renal function degree.


Hypertension ◽  
2008 ◽  
Vol 52 (2) ◽  
pp. 271-278 ◽  
Author(s):  
Bertram Pitt ◽  
Ali Ahmed ◽  
Thomas E. Love ◽  
Henry Krum ◽  
Jose Nicolau ◽  
...  

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
L Minushkina ◽  
V Brazhnik ◽  
N Selezneva ◽  
V Safarjan ◽  
M Alekhin ◽  
...  

Abstract   Left ventricular (LV) global function index (LVGFI) is a MRI marker of left ventricular remodeling. LVGFI has high predictive significance in young healthy individuals. The aim of the study was to assess prognostic significance in patients with acute coronary syndrome (ACS). We include into this analysis 2169 patients with ACS (1340 (61.8%) men and 829 (38.2%) women), mean age 64.08±12.601 years. All patients were observed in 2 Russian multicenter observational studies: ORACLE I (ObseRvation after Acute Coronary syndrome for deveLopment of trEatment options) (2004–2007 years) and ORACLE II (NCT04068909) (2014–2019 years). 1886 (87.0%) pts had arterial hypertension, 1539 (71.0%) – history of coronary artery disease, 647 (29.8%) – history of myocardial infarction, 444 (20.5%) - diabetes mellitus. Duration of the follow-up was 1 years after the hospital discharge. Cases of death from any cause, coronary deaths, repeated coronary events (fatal and non-fatal) were recorded. An echocardiographic study was conducted 5–7 days from the time of hospitalization. The LVGFI was defined as LV stroke volume/LV global volume × 100, where LV global volume was the sum of the LV mean cavity volume ((LV end-diastolic volume + LV end-systolic volume)/2) and myocardial volume (LV mass/density). During the follow-up, 193 deaths were recorded (8.9%), 122 deaths (5.6%) were coronary. In total, repeated coronary events were recorded in 253 (11.7%) patients. Mean LVGFI was 22.64±8.121%. Patients who died during the follow-up were older (73.03±10.936 years and 63.15±12.429 years, p=0.001), had a higher blood glucose level at the admission to the hospital (8.12±3.887 mmol/L and 7.17±3.355 mmol/L, p=0.041), serum creatinine (110.86±53.954 μmol/L and 99.25±30.273 μmol/L, p=0.007), maximum systolic blood pressure (196.3±25.17 mm Hg and 190.3±27.83 mm Hg, p=0.042). Those who died had a lower LVGFI value (19.75±6.77% and 23.01±8.243%, p&lt;0.001). Myocardial mass index, ejection fraction and other left ventricular parameters did not significantly differ between died and alive patients. Among the patients who died, there were higher rate of women, pts with a history of myocardial infarction, heart failure, diabetes. In a multivariate analysis, diabetes mellitus OR1.67 95% CI [1.12–2.51] p=0.012, history of heart failure (1.78 [1.2.-2.59], p=0.003), a history of myocardial infarction (1.47 [1.05–2.05], p=0024), age (1.06 [1.05–1.08], p=0.001) and LVGFI &lt;22% (1.53 [1.08–2.17], p=0.015) were independent predictors of death from any cause. The LVGFI was also independently associated with the risk of coronary death, but not with the risk of all recurring coronary events. Thus, LVGFI may be useful the marker to assess risk in patients who have experienced an ACS episode. Funding Acknowledgement Type of funding source: None


2020 ◽  
pp. 2000918
Author(s):  
Hannah R. Whittaker ◽  
Chloe Bloom ◽  
Ann Morgan ◽  
Deborah Jarvis ◽  
Steven J. Kiddle ◽  
...  

Accelerated lung function decline has been associated with increased risk of cardiovascular disease (CVD) in a general population, but little is known about this association in chronic obstructive pulmonary disease (COPD). We investigated the association between accelerated lung function decline and CVD outcomes and mortality in a primary care COPD population.COPD patients without a history of CVD were identified in the Clinical Practice Research Datalink (CPRD-GOLD) primary care dataset (n=36 282). Accelerated FEV1 decline was defined using the fastest quartile of the COPD population's decline. Cox regression assessed the association between baseline accelerated FEV1 decline and a composite CVD outcome over follow-up (myocardial infarction, ischaemic stroke, heart failure, atrial fibrillation, coronary artery disease, and CVD mortality). The model was adjusted for age, gender, smoking status, BMI, history of asthma, hypertension, diabetes, statin use, mMRC dyspnoea, exacerbation frequency, and baseline FEV1 percent predicted.6110 (16.8%) COPD patients had a CVD event during follow-up; median length of follow-up was 3.6 years [IQR 1.7–6.1]). Median rate of FEV1 decline was –19.4 mL·year−1 (IQR, –40.5 to 1.9); 9095 (25%) patients had accelerated FEV1 decline (>–40.5 mL·year−1), 27 287 (75%) did not (≤ –40.5 mL·year−1). Risk of CVD and mortality was similar between patients with and without accelerated FEV1 decline (HRadj 0.98 [95%CI, 0.90–1.06]). Corresponding risk estimates were 0.99 (95%CI 0.83–1.20) for heart failure, 0.89 (95%CI 0.70–1.12) for myocardial infarction, 1.01 (95%CI 0.82–1.23) for stroke, 0.97 (95%CI 0.81–1.15) for atrial fibrillation, 1.02 (95%CI 0.87–1.19) for coronary artery disease, and 0.94 (95%CI 0.71–1.25) for CVD mortality. Rather, risk of CVD was associated with mMRC score ≥2 and ≥2 exacerbations in the year prior.CVD outcomes and mortality were associated with exacerbation frequency and severity and increased mMRC dyspnoea but not with accelerated FEV1 decline.


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