The Effect of Atrial Fibrillation on the Long-Term Mortality of Patients with Acute Coronary Syndrome: The TACOS Study

Cardiology ◽  
2021 ◽  
pp. 1-9
Author(s):  
Kaari K. Konttila ◽  
Olli Punkka ◽  
Kimmo Koivula ◽  
Markku J. Eskola ◽  
Mika Martiskainen ◽  
...  

<b><i>Introduction:</i></b> Atrial fibrillation (AF) is a frequent finding in acute coronary syndrome (ACS), but there is conflicting scientific evidence regarding its long-term impact on patient outcome. The aim of this study was to survey and compare the ≥10-year mortality of ACS patients with sinus rhythm (SR) and AF. <b><i>Methods:</i></b> Patients were divided into 2 groups based on rhythm in their 12-lead ECGs: (1) SR (<i>n</i> = 788) at hospital admission and discharge (including sinus bradycardia, physiological sinus arrhythmia, and sinus tachycardia) and (2) AF/atrial flutter (<i>n</i> = 245) at both hospital admission and discharge, or SR and AF combination. Patients who failed to match the inclusion criteria were excluded from the final analysis. The main outcome surveyed was long-term all-cause mortality between AF and SR groups during the whole follow-up time. <b><i>Results:</i></b> Consecutive ACS patients (<i>n</i> = 1,188, median age 73 years, male/female 58/42%) were included and followed up for ≥10 years. AF patients were older (median age 77 vs. 71 years, <i>p</i> &#x3c; 0.001) and more often female than SR patients. AF patients more often presented with non-ST-elevation myocardial infarction (69.8 vs. 50.4%, <i>p</i> &#x3c; 0.001), had a higher rate of diabetes (31.0 vs. 22.8%, <i>p</i> = 0.009), and were more often using warfarin (32.2 vs. 5.1%, <i>p</i> &#x3c; 0.001) or diuretic medication (55.1 vs. 25.8%, <i>p</i> &#x3c; 0.001) on admission than patients with SR. The use of warfarin at discharge was also more frequent in the AF group (55.5 vs. 14.8%, <i>p</i> &#x3c; 0.001). The rates of all-cause and cardiovascular mortality were higher in the AF group (80.9 vs. 50.3%, <i>p</i> &#x3c; 0.001, and 73.8 vs. 69.6%, <i>p</i> = 0.285, respectively). In multivariable analysis, AF was independently associated with higher mortality when compared to SR (adjusted HR 1.662; 95% CI: 1.387–1.992, <i>p</i> &#x3c; 0.001). <b><i>Conclusion:</i></b> AF/atrial flutter at admission and/or discharge independently predicted poorer long-term outcome in ACS patients, with 66% higher mortality within the ≥10-year follow-up time when compared to patients with SR.

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
F Scudiero ◽  
R Valenti ◽  
R Marcucci ◽  
G D Sanna ◽  
A M Gori ◽  
...  

Abstract Background Coronary artery disease (CAD) has been recognized as a serious and potentially life-threatening complication of Hepatitis C Virus (HCV) infection. High on treatment platelet reactivity has been associated with high risk of ischemic events in patients with CAD, but data regarding the association with HCV infection are still lacking. Purpose We sought to assess platelet reactivity on dual anti-platelet therapy and long-term outcome of acute coronary syndrome (ACS) patients infected with HCV. Methods ACS patients infected with HCV were matched to ACS patients without HCV for age, sex, diabetes, hypertension and renal function. Primary and secondary study endpoints were the proportion of patients with high on treatment platelet reactivity (HTPR) and long-term outcomes, respectively. Results HCV-infected ACS patients had higher levels of platelet reactivity (ADP10-LTA: 56% ± 18% vs. 44% ± 22%; p=0.002; Arachidonic Acid-LTA: 25% ± 21% vs. 16% ± 15%; p=0.011) and higher rate of HTPR on clopidogrel and aspirin compared with non-HCV patients. Multivariable analysis demonstrated HCV-infection to be an independent predictor of HTPR. At follow-up, estimated major adverse clinical events (MACE: cardiac death, non fatal myocardial infarction and any revascularization) were 57% vs. 37%, p=0.006 in HCV-infected ACS and non-HCV, respectively. Also, TIMI major bleeding rates were higher in HCV-infected subjects (11% vs. 3%; p=0.043) as compared with non-infected patients. Platelet function according to HCV status Conclusions ACS patients with HCV infection have increased on treatment platelet reactivity, higher rate of HTPR, MACE and bleedings as compared with non-HCV patients.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Seigo Yamashita ◽  
Michifumi Tokuda ◽  
Saagar Mahida ◽  
Hidenori Sato ◽  
Hirotsugu Ikewaki ◽  
...  

AbstractThe optimal ablation strategy for persistent atrial fibrillation (PsAF) remains to be defined. We sought to compare very long-term outcomes between linear ablation and electrogram (EGM)-guided ablation for PsAF. In a retrospective analysis, long-term arrhythmia-free survival compared between two propensity-score matched cohorts, one with pulmonary vein isolation (PVI) and linear ablation including roof/mitral isthmus line (LINE-group, n = 52) and one with PVI and EGM-guided ablation (EGM-group; n = 52). Overall, 99% of patients underwent successful PVI. Complete block following linear ablation was achieved for 94% of roof lines and 81% of mitral lines (both lines blocked in 75%). AF termination by EGM-guided ablation was accomplished in 40% of patients. Non-PV foci were targeted in 7 (13%) in the LINE-group and 5 (10%) patients in the EGM-group (p = 0.76). During 100 ± 28 months of follow-up, linear ablation was associated with superior arrhythmia-free survival after the initial and last procedure (1.8 ± 0.9 procedures) compared with EGM-group (Logrank test: p = 0.0001 and p = 0.045, respectively). In multivariable analysis, longer AF duration and EGM-guided ablation remained as independent predictors of atrial arrhythmia recurrence. Linear ablation might be a more effective complementary technique to PVI than EGM-guided ablation for PsAF ablation.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
M Proietti ◽  
C Laroche ◽  
A Tello-Montoliu ◽  
R Lenarczyk ◽  
G A Dan ◽  
...  

Abstract Introduction Heart failure (HF) is a well-known risk factor for atrial fibrillation (AF). Moreover, HF is associated with worse clinical outcomes in patients with known AF. Recently, phenotypes of HF have been redefined according to the level of ejection fraction (EF). New data are needed to understand if a differential risk for outcomes exists according to the new phenotypes' definitions. Purpose To evaluate the risk of major adverse outcomes in patients with AF and HF according to HF clinical phenotypes. Methods We performed a subgroup analysis of AF patients enrolled in the EORP-AF Long-Term General Registry with a history of HF at baseline, available EF and follow-up data. Patients were categorized as follows: i) EF<40%, i.e. HF reduced EF [HFrEF]; ii) EF 40–49%, i.e. HF mid-range EF [HFmrEF]; iii) EF ≥50%, i.e. HF preserved EF [HFpEF]. Any thromboembolic event (TE)/acute coronary syndrome (ACS)/cardiovascular (CV) death, CV death and all-cause death were recorded. Results A total of 3409 patients were included in this analysis: of these, 907 (26.6%) had HFrEF, 779 (22.9%) had HFmrEF and 1723 (50.5%) had HFpEF. An increasing proportion with CHA2DS2-VASc ≥2 was found across the three groups: 90.4% in HFrEF, 94.6% in HFmrEF and 97.3% in HFpEF (p<0.001), while lower proportions of HAS-BLED ≥3 were seen (28.0% in HFrEF, 26.3% in HFmrEF and 23.6% in HFpEF, p=0.035). At discharge patients with HFpEF were less likely treated with antiplatelet drugs (22.0%) compared to other classes and were less prescribed with vitamin K antagonists (VKA) (57.0%) and with any oral anticoagulant (OAC) (85.7%). No differences were found in terms of non-vitamin K antagonist oral anticoagulant use. At 1-year follow-up, a progressively lower rate for all study outcomes (all p<0.001), with an increasing cumulative survival, was found across the three groups, with patients with HFpEF having better survival (all p<0.0001 for Kaplan-Meier curves). After full adjustment, Cox regression analysis showed that compared to HFrEF, HFmrEF and HFpEF were associated with risk of all study outcomes (Table). Cox Regression Analysis HR (95% CI) Any TE/ACS/CV Death CV Death All-Cause Death HFmrEF 0.65 (0.49–0.86) 0.53 (0.38–0.74) 0.55 (0.41–0.74) HFpEF 0.50 (0.39–0.64) 0.42 (0.31–0.56) 0.45 (0.35–0.59) ACS = Acute Coronary Syndrome; CI = Confidence Interval; CV = Cardiovascular; EF = Ejection Fraction; HF = Heart Failure; HR = Hazard Ratio. Conclusions In this cohort of AF patients with HF, HFpEF was the most common phenotype, being associated with a profile related to an increased thromboembolic risk. Compared to HFrEF, both HFmrEF and HFpEF were associated with a lower risk of all major adverse outcomes in AF patients.


2021 ◽  
Vol 20 (6) ◽  
pp. 2876
Author(s):  
O. V. Kamenskaya ◽  
A. S. Klinkova ◽  
I. Yu. Loginova ◽  
V. N. Lomivorotov ◽  
A. M. Chernyavskiy ◽  
...  

Aim. To assess the short- and long-term outcomes of myocardial re- vascularization (MR) in patients with coronary artery disease (CAD) and acute coronary syndrome (ACS) in the context of coronavirus disease 2019 (COVID-19) pandemic.Material and methods. In the period from April to August 2020, 550 patients with CAD and ACS were included in the register. Emergency percutaneous transluminal coronary angioplasty (n=499) and on-pump coronary artery bypass grafting (CABG) (n=51) were performed. The follow-up period lasted 6 months. The pattern of complications after MR and effects of COVID-19 were analyzed.Results. The studied cohort is represented by patients with CAD >65 years old. ST segment elevation ACS was detected in 23%, acute myocardial infarction — in 59,1%, in other cases — unstable angina. During hospitalization after MR, atrial fibrillation prevailed among cardiovascular complications (4,7%). During this period, 29 (5,3%) patients was diagnosed with COVID-19. In the short-term period after MR, 3 (0,5%) people died due to COVID-19 complications-. In the long-term period after MR, 4 (0,7%) cases of non-fatal stroke were registered, while repeated MR — in 7,1%. The all-cause mortality rate was 1,3% (n=7), of which 57,1% of patients died due to COVID-19 complications. In the subgroup of patients who underwent CABG, the greatest number of in-hospital complications was noted, where exudative pleurisy, atrial fibrillation and anemia prevailed. Of the patients with COVID-19, pneumonia in the short-and long-term posto perative periods was recorded in 48,3 and 61,3%, respectively. Pneumonia is associated with respiratory failure, cardiac dysfunction, and anemia. The risk of COVID-19 pneumonia during the entire follow-up period was higher in patients with ACS who underwent CABG (odds ratio, 19,4; confidence interval: 13,3-26,1; p<0,001). The overall survival rate was 98,7%.Conclusion. COVID-19 infection in patients with ACS after MR effects pattern of postoperative complications. The proportion of COVID-19 pneumonia in patients with ACS in hospital, short-  and long-term postoperative periods after MR significantly exceeds that in the general population. The leading factor associated with COVID-19 pneumonia in patients with ACS is on-pump CABG.


2021 ◽  
pp. 68-88
Author(s):  
E. S. Kropacheva ◽  
E. N. Krivosheeva ◽  
E. P. Panchenko

Introduction. Despite the large evidence base for the use of rivaroxaban, cohort studies are interesting because shows the possibility of anticoagulant therapy in patients with high thromboembolic and bleeding risk and a burden of comorbidity in practice.Aim: to evaluate the efficacy and safety of rivaroxaban therapy in patients with atrial fibrillation in prospective REGATTA registry.Materials and methods. This study is a fragment of a single-center prospective REGATA registry (Registry of Long-term Antithrombotic Therapy (NCT043447187), conducted on the basis of the National Research Center of Cardiology of the Ministry of Health of the Russian Federation. 152 patients with high thromboembolic risk (median CHA2DS2-VASc = 4) received rivaroxaban therapy (median follow-up 1.5 years). The efficacy endpoint was the sum of cardiovascular complications (including cardiovascular death, ischemic stroke, and acute coronary syndrome). The safety endpoint bleedinds BARC types 2-5.Results. The frequency of cardiovascular events (combining cardiovascular death, ischemic stroke and acute coronary syndrome) was 5.8/100 patient-years. The use of a “reduced” dose of rivaroxaban was an independent predictor of the development of fatal cardiovascular complications. The rate of major bleeding was 3.7/100 patient-years, and the rate of clinical relevant bleedings was 19.4 /100 patientyears. The predictors of major/ clinical relevant bleedings were chronic kidney disease with a decrease in creatinine clearance of less than 50 ml/min and the anamneses of major/ clinical relevant bleedings.Conclusion. The main requirement for improving the safety of anticoagulants is follow up, focused in all changes in the cardiovascular and somatic status of the patient during treatment.


Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Xue Zhao ◽  
Jianqiang Hu ◽  
Yan Huang ◽  
Yawei Xu ◽  
Yanzhou Zhang ◽  
...  

Objectives: The aim of this study was to determine the mechanisms and effectiveness of pulmonary antrum radial-linear (PAR) ablation in comparison with pulmonary vein isolation (PVI) in patients with paroxysmal atrial fibrillation (AF) after a long-term follow-up. Background: The one-year follow up data suggested that PAR ablation appeared to have a better outcome over the conventional PVI for paroxysmal AF. Methods: The enrollment occurred between March, 2011, and August, 2011, with the last follow-up in May, 2014. A total of 133 patients with documented paroxysmal AF were enrolled from 5 centers and randomized to PAR group or PVI group. Event ECG recorder and Holter monitoring were conductedduring the follow-up for all patients. Results: The average procedure time was 151±23 min in PAR group and 178±43 min in PVI group ( P <0.001). The average fluoroscopy time was 21±7 min in PAR group and 27±11 min in PVI group ( P= 0.002). AF triggering foci were eliminated in 59 patients (89.4%) in PAR group, whereas, only 4 patients (6.0%) in PVI group (P<0.001).At median 36 (37-35) months of follow-up after single ablation procedure, 43 of 66 patients in PAR group (65%) and 28 of 67 patients in PVI group (42%) had no recurrence of AF off antiarrhythmic drug (AAD) (P=0.007); and 47 of 66 patients in PAR group (71%) and 32 of 67 patients in PVI group (48%) had no recurrence of AF with AAD (P=0.006). At the last follow-up, the burden of AF was significantly lower in PAR group than in PVI group (0.9% ± 2.3% vs 4.9% ± 9.9%;90th percentile, 5.5% vs 19.6%; P=0.008). No major adverse event (death, stroke, PV stenosis) was observed in all the patients except one case of pericardial tamponade. Conclusions: PAR ablation is a simple, safe, and effective strategy for the treatment of paroxysmal AF with better long-term outcome than PVI. PAR ablation might exhibit the beneficial effect on AF management through multiple mechanisms. Registration: ChiCTR-TRC-11001191


Cardiology ◽  
2020 ◽  
Vol 145 (3) ◽  
pp. 148-154 ◽  
Author(s):  
Artur Małyszczak ◽  
Agata Łukawska ◽  
Izabela Dyląg ◽  
Weronika Lis ◽  
Andrzej Mysiak ◽  
...  

Introduction: Platelets play a fundamental role in the pathogenesis of acute coronary syndrome (ACS). The platelet count (PC) at hospital admission is easy to obtain, but whether thrombocytopenia or/and thrombocytosis impact long-term mortality (LTM) after ACS is unclear. Objective: To evaluate the effect of PC at hospital admission on LTM in patients with ACS. Methods: This retrospective cohort study included patients with the ICD-10 codes for unstable angina (I.20) and acute myocardial infarction (I.21, I.22). Thrombocytopenia was defined as a blood PC <150 G/L and thrombocytosis as a PC >450 G/L. Additional platelet indices which were tested included plateletcrit (PCT), the mean platelet volume (MPV), the platelet distribution width (PDW), and the platelet larger cell ratio (P-LCR). Data on all-cause death were obtained from the National Health Fund database. Results: The study included 3,162 patients with a median follow-up of 27.2 months (interquartile range 12.5–46.8 months; max 68.7 months). Patients with thrombocytopenia and thrombocytosis yielded a higher maximal analyzed 5-year mortality rate in comparison with normal PC patients (45.8 and 47.7 vs. 24.2%, respectively; p < 0.00001) which was mainly driven by higher deaths at 1–2 years after ACS. The 5-year LTM was also significantly higher in patients with abnormal PCT and MPV levels in comparison with patients with PCT and MPV within the normal range. Other platelet indices (PDW, P-LCR) were not associated with a worse outcome. The Cox proportional hazards model revealed that thrombocytopenia at admission was independently associated with higher LTM after ACS (RR 1.83; 95% CI 1.1–3.0; p = 0.01). Conclusions: Both thrombocytopenia and thrombocytosis at hospital admission in post-ACS patients are associated with a significant almost two times higher 5-year mortality rate.


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