The Atrial fibrillation Better Care (ABC) pathway and cardiac complications in atrial fibrillation: a potential sex-based difference. The ATHERO-AF study

Adherence to the atrial fibrillation better care pathway and its associated factors among rural patients with atrial fibrillation in China: A cross-sectional study

BACKGROUND

The atrial fibrillation better care (ABC) pathway is an effective strategy for the integrated management of atrial fibrillation (AF). Current data on adherence to the ABC pathway among rural patients with AF in China are limited.

OBJECTIVES

To investigated adherence to the ABC pathway and its associated factors among rural patients with AF in China.

METHODS

In the cross-sectional study, we recruited 870 rural patients with AF from July 2022 to July 2023 in China. AF-related sociodemographic and clinical data was collected.

RESULTS

Among the 870 rural patients with AF, 437 (50.23 %) were male, 714 (82.07 %) were ≥65 years old. The level of adherence to ABC pathway was extremely low (5.75 %), and its associated factors included patients ≥75 years (compared with those <65 years, OR=0.165, 95 %CI: 0.065-0.417, P < 0.001), junior middle school and senior middle school education or above (compared with primary school education or below, OR=3.441, 95 %CI: 1.144-10.351, P = 0.028; OR=11.438, 95 %CI: 3.758-34.814, P < 0.001), average monthly household income per capita 1000-3000 RMB and >3000 RMB (compared with <1000 RMB, OR=3.993, 95 %CI: 1.343-11.877, P = 0.013; OR=4.474, 95 %CI: 1.478-13.541, P = 0.008), persistent AF (compared with paroxysmal AF, OR=0.062, 95 %CI: 0.008-0.466, P = 0.007) and multimorbidity (OR=0.356, 95 %CI: 0.163-0.781, P = 0.010).

CONCLUSIONS

There is an urgent need to develop targeted interventions and national policies to improve the adherence to the ABC pathway of rural AF patients in China.

Understanding for whom, under what conditions, and how an integrated approach to atrial fibrillation service delivery works: a realist review

AIMS

To understand for whom, under what conditions, and how an integrated approach to atrial fibrillation (AF) service delivery works (or does not work).

METHODS AND RESULTS

A realist review of integrated approaches to AF service delivery for adult populations aged ≥18 years. An expert panel developed an initial programme theory, searched and screened literature from four databases until October 2022, extracted and synthesized data using realist techniques to create context-mechanism-outcome configurations for integrated approaches to AF service, and developed an integrated approach refined programme theory. A total of 5433 documents were screened and 39 included. The refined programme theory included five context-mechanism-outcome configurations for how clinical and system-wide outcomes are affected by the way integrated approaches to AF service delivery are designed and delivered. This review identifies core mechanisms underpinning the already known fundamental components of integrated care. This includes having a central coordinator responsible for service organization to provide continuity of care across primary and secondary care ensuring services are patient centred. Additionally, a fifth pillar, lifestyle and risk factor reduction, should be recognized within an AF care pathway.

CONCLUSION

It is evident from our provisional theory that numerous factors need to interlink and interact over time to generate a successfully integrated model of care in AF. Stakeholders should embrace this complexity and acknowledge that the learnings from this review are integral to shaping future service delivery in the face of an aging population and increased prevalence of AF.

Renin-angiotensin-aldosterone system inhibitors and mortality risk in elderly patients with atrial fibrillation. Insights from the nationwide START registry

BACKGROUND

Arterial hypertension is the most common cardiovascular comorbidity in atrial fibrillation (AF). Few studies investigated management strategies of hypertension in AF.

MATERIALS AND METHODS

We included 5769 AF patients on oral anticoagulants from the nationwide ongoing Italian START registry. We investigated the prescription of antihypertensive drugs and mortality risk. Subgroup analyses according to sex and major cardiovascular comorbidities were performed.

RESULTS

Mean age was 80.8 years, 46.1% were women; 80.3% of patients were hypertensive. Furosemide (30.1%) was the most frequent diuretic followed by hydrochlorothiazide (15.4%) and potassium canrenoate (7.9%). 61.1% received β-blockers: 34.2% bisoprolol, 6.2% atenolol. Additionally, 36.9% were on angiotensin converting enzyme inhibitors (ACE-I): ramipril (20.9%), enalapril (5.3%) and perindopril (2.8%); 31.7% were on angiotensin receptors blockers (ARBs): valsartan (7.6%) and irbesartan (6.4%). Amlodipine and lercanidipine were prescribed in 14.0% and 2.3%, respectively. ACE-I (p < 0.001), α-blockers (p = 0.020) and Dihydropyridines calcium channel blockers (p = 0.004) were more common in men, while ARBs (p = 0.008), thiazide diuretics (p < 0.001) and β-blockers (p < 0.001) in women. During 22.61 ± 17.1 months, 512 patients died. Multivariable Cox regression analysis showed that ACE-I (Hazard ratio [HR] 0.758, 95% Confidence Interval [95%CI] 0.612-0.940, p = 0.012) and ARBs (HR 0.623, 95%CI 0.487-0.796, p < 0.001) inversely associated with mortality. ACE-I/ARBs inversely associated with mortality in both sexes and in patients with diabetes. This associastion was evident for ACE-I in patients with previous cardiovascular disease, and for ARBs in HF.

CONCLUSION

A lower mortality risk was found in AF patients on ACE-I/ARBs. Different prescription patterns of antihypertensive drugs between men and women do exist.

Validating the predictive ability of the 2MACE score for major adverse cardiovascular events in patients with atrial fibrillation: results from phase II/III of the GLORIA-AF registry

The 2MACE score was specifically developed as a risk-stratification tool in atrial fibrillation (AF) to predict cardiovascular outcomes. We evaluated the predictive ability of the 2MACE score in the GLORIA-AF registry. All eligible patients from phase II/III of the prospective global GLORIA-AF registry were included. Major adverse cardiac events (MACEs) were defined as the composite outcome of stroke, myocardial infarction and cardiovascular death. Cox proportional hazards were used to examine the relationship between the 2MACE score and study outcomes. Predictive capability of the 2MACE score was investigated using receiver-operating characteristic curves. A total of 25,696 patients were included (mean age 71 years, female 44.9%). Over 3 years, 1583 MACEs were recorded. Patients who had MACE were older, with more cardiovascular risk factors and were less likely to be managed using a rhythm-control strategy. The median 2MACE score in the MACE and non-MACE groups were 2 (IQR 1-3) and 1 (IQR 0-2), respectively (p < 0.001). The 2MACE score was positively associated with an increase in the risk of MACE, with a score of ≥ 2 providing the best combination of sensitivity (69.6%) and specificity (51.6%), HR 2.47 (95% CI, 2.21-2.77). The 2MACE score had modest predictive performance for MACE in patients with AF (AUC 0.655 (95% CI, 0.641-0.669)). Our analysis in this prospective global registry demonstrates that the 2MACE score can adequately predict the risk of MACE (defined as myocardial infarction, CV death and stroke) in patients with AF. Clinical trial registration: http://www.clinicaltrials.gov . Unique identifiers: NCT01468701, NCT01671007 and NCT01937377.

Statins under-treatment and mortality in patients with atrial fibrillation. Insights from the nationwide START registry

BACKGROUND AND AIMS

Statins are mainstream drugs for cardiovascular (CV) prevention, but under-prescription is an important clinical challenge. Data on the use of single statins and on the rate of under-prescription in atrial fibrillation (AF) are lacking. We evaluated the association of statin underuse with mortality risk in a large AF cohort.

METHODS AND RESULTS

As many as 5477 patients from the Italian nationwide START registry were included. The prevalence of different statins was reported and the association of under prescription with all-cause and CV mortality investigated. Mean age was 80.2 years, and 46.4% were women. Among 2899 patients with a clinical indication to statin, only 1578 (54.4%) were on treatment. In a mean follow-up of 22.5 ± 17.1 months, 491 (4.7%/year) deaths occurred (106 CV deaths, 1.0%/year). Atorvastatin and Simvastatin were inversely associated with all-cause (HR 0.692, 95% CI 0.519-0.923, p = 0.012 and HR 0.598, 95% CI 0.428-0.836, p = 0.003, respectively) and CV death (HR 0.372, 95% CI 0.178-0.776, p = 0.008 and HR 0.306, 95% CI 0.123-0.758, p = 0.010, respectively). The 1321 untreated patients were older, more frequently women and with a higher prevalence of diabetes, previous cerebrovascular disease, peripheral artery disease compared to those on treatment. Statin undertreatment was associated with higher risk of all-cause (HR 1.400, 95% CI 1.078-1.819, p = 0.012) and CV death (HR 2.057, 95% CI 1.188-3.561, p = 0.010).

CONCLUSIONS

AF patients with an indication to statins but left untreated show a high risk of all-cause and CV mortality. Implementation of statin prescription in the AF population can help reducing the residual mortality risk.

Adherence to Atrial Fibrillation Better Care (ABC) Pathway Management of Chinese Community Elderly Patients with Atrial Fibrillation: A Cross-Sectional Study

Background

Investigating adherence to the Atrial Fibrillation Better Care (ABC) pathway management and identifying gaps between the real world and established guidelines can lead to better integrated management of AF. Current data on adherence to ABC pathway management among community elderly patients with atrial fibrillation (AF) in Chinese communities is limited.

Aim

To investigate the adherence to ABC pathway management among community elderly patients with AF in China.

Methods

In this cross-sectional study, data were collected from the 2020 National Basic Public Health Service Program database that includes health examination information for all residents >65 years of age in Yuexiu, Guangzhou, Guangdong Province. Demographic and clinical characteristics data from 197 community AF patients were obtained.

Results

Among the 197 AF patients, 103 (52.3%) were male, 117 (59.4%) were ≥75 years of age, 127 (64.5%) had a senior middle school education or above, 84.3% were married, and 195 (99.0%) had medical insurance. The most common comorbidities were hypertension (72.1%, 142/197), dyslipidaemia (28.4%, 56/197), CAD (28.9%, 57/197), and diabetes (24.9%, 49/197). In terms of the ABC management pathway, 21.8% (43/197), 82.7% (163/197), and 31.5% (62/197) of AF patients were classified into the A-adherent group, B-adherent group, and C-adherent group, respectively. The level of adherence to ABC pathway management was very low (9.1%, 18/197) and independently associated with age and multimorbidity.

Conclusion

The level of adherence to ABC pathway management in community elderly patients with AF was unsatisfactory. Further research is warranted to improve the integrated management of AF.

The Possible Influence of Vitamin D Levels on the Development of Atrial Fibrillation-An Update

Atrial fibrillation (AF) is a severe and most common supraventricular arrhythmia in humans, which, if left untreated or treated ineffectively, can lead to ischemic stroke or heart failure. It has been suggested that serum vitamin D (VitD) deficiency may be one of the critical factors influencing the onset of AF, especially in the period after cardiac surgery, such as coronary artery bypass grafting. Several papers have indicated that VitD supplementation reduces the risk of AF, significantly reducing the proportion of patients between the control and study groups in both the pre- and postoperative periods. Factors that increase the risk of AF from VitD deficiency are also further indicated, and these are age, gender, weight, season or comorbidities. In addition, the cardiodepressive mechanism of VitD is not fully understood; however, it is suggested that it acts through at least two pathways. The first indicates a direct effect of VitD on atrial muscle degradation, while the second is related to the modulation of cardiovascular depression factors. Despite many reports showing correlations between no VitD concentrations on the development of AF, this topic is still widely debated and the results from these papers are still subject to doubt. Therefore, this review aims at describing in detail the problem of correlation between VitD deficiency and the development of AF associated mainly with the postoperative period, i.e., after cardiac surgery, especially pathogenesis, and results of this correlation, taking into account recent studies, limitations and future perspectives. Due to the fact that this is still a topical problem, we believe that the collection of the latest reports and a detailed description of the problem is most appropriate in this case.

Bleeding and thrombotic events in atrial fibrillation patients with cancer: a systematic review and meta-analysis

Atrial fibrillation (AF) and cancer are frequently coexisting in elderly patients. Pooled metanalytic data on the impact of cancer on clinical outcomes in AF patients are lacking. We performed a systematic review and meta-regression analysis of clinical studies retrieved from Medline (PubMed) and Cochrane (CENTRAL) databases according to PRISMA guidelines. Bleeding endpoints included any, major, gastrointestinal (GI) bleeding and intracranial haemorrhage (ICH). Cardiovascular (CV) endpoints included myocardial infarction (MI), ischemic stroke/systemic embolism (IS/SE), CV and all-cause death. PROSPERO registration number: CRD42022315678. We included 15 studies with 2,868,010 AF patients, of whom 479,571 (16.7%) had cancer. The pooled hazard ratio (HR) for cancer was 1.43 (95% confidence interval [95%CI] 1.42-1.44) for any bleeding, 1.27 (95% CI 1.26-1.29) for major bleeding, 1.17 (95% CI 1.14-1.19) for GI bleeding, and 1.07 (95% CI 1.04-1.11) for ICH. The risk of major bleeding increased with the proportion of breast cancer. Cancer increased the risk of all-cause death (HR 2.00, 95% CI 1.99-2.02) whereas no association with MI and CV death was found. Patients with AF and cancer were less likely to suffer from IS/SE (HR 0.91, 95% CI 0.89-0.94). Cancer complicates the clinical history of AF patients, mainly increasing the risk of bleeding. Further analyses according to the type and stage of cancer are necessary to better stratify bleeding risk in these patients.

Efficacy of mobile health-technology integrated care based on the 'Atrial fibrillation Better Care' (ABC) pathway in relation to sex: a report from the mAFA-II randomized clinical trial

The Mobile Health Technology for Improved Screening and Optimized Integrated Care in AF (mAFA-II) cluster-randomized trial showed that a mobile health (mHealth)-implemented 'Atrial fibrillation Better Care' (ABC) pathway approach reduced the risk of adverse events in atrial fibrillation (AF) patients. Whether this benefit can be applied to both males and females is unclear, especially given the suboptimal management and poorer cardiovascular outcomes in females with AF. In this post-hoc analysis, we performed a sex-stratified analysis of the mAFA-II trial. Between June 2018 and August 2019, adult AF patients were enrolled across 40 centers in China. The primary outcome was the composite of stroke, thromboembolism, all-cause death, and re-hospitalization. The effect of mAFA intervention according to sex was evaluated through adjusted Cox-regression models. Among the 3,324 patients enrolled in the trial, 2,062 (62.0%) patients were males (mean age: 67.5 ± 14.3 years; 1,021 allocated to mAFA intervention) and 1,262 (38.0%) were females (mean age: 70.2 ± 13.0; 625 allocated to mAFA intervention). A significant risk reduction of the primary composite outcome in patients allocated to mAFA intervention was observed in both males (adjusted hazard ratio [aHR] and 95% confidence interval [CI] 0.30 [0.17-0.52]) and females (aHR [95%CI] 0.50 [0.27-0.92]), without statistically significant interaction (p = 0.225). Sex-based interactions were observed for other secondary outcomes, including all-cause death (p = 0.026) and bleeding events (p = 0.032). A mHealth-technology implemented ABC pathway was similarly effective in reducing the risk of adverse clinical events both in male and female patients. Secondary outcomes showed greater benefits of mAFA intervention in men.

Impact of Achieving Blood Pressure Targets and High Time in Therapeutic Range on Clinical Outcomes in Patients With Atrial Fibrillation Adherent to the Atrial Fibrillation Better Care Pathway: A Report From the COOL-AF Registry

Background We aimed to determine the effect of integrating Atrial Fibrillation Better Care pathway compliance in relation to achievement of systolic blood pressure (SBP) targets and good control of time in therapeutic range (TTR) on clinical outcomes in patients with atrial fibrillation. Methods and Results We prospectively enrolled patients with nonvalvular atrial fibrillation  from 27 hospitals in Thailand. All clinical outcomes were recorded. Main outcomes were the composite of all-cause death or ischemic stroke/systemic embolism (SSE), as well as secondary outcomes of all-cause death, SSE, major bleeding, intracranial hemorrhage, and heart failure. An SBP of 120 to 140 mm Hg was considered good blood pressure control. Target TTR was a TTR ≥65%. A total of 3405 patients were studied (mean age 67.8 years, 41.8% female). Full ABC pathway compliance was evident in 42.7%. For blood pressure control, 41.9% had SBP within target, whereas 35.9% of those on warfarin had TTR within target. The incidence rates of all-cause death/SSE, all-cause death, SSE, major bleeding, intracranial hemorrhage, and heart failure were 5.29, 4.21, 1.51, 2.25, 0.78, and 2.84 per 100 person-years respectively. Adjusted hazard ratios and 95% CI of Atrial Fibrillation Better Care pathway compliance for all-cause death/SSE, all-cause death, and heart failure were 0.76 (0.62-0.94), 0.79 (0.62-0.99), and 0.69 (0.51-0.94), respectively, compared with noncompliance. Patients with Atrial Fibrillation Better Care compliance and SBP within target had a better outcome or TTR within target had better outcomes. Conclusions In COOL-AF (Cohort of Antithrombotic Use and Optimal International Normalized Ratio Level in Patients With Non-Valvular Atrial Fibrillation in Thailand), a multicenter nationwide prospective cohort of patients with atrial fibrillation, achieving SBP within target and TTR ≥ 65% has added value to Atrial Fibrillation Better Care pathway compliance in the reduction of adverse clinical outcomes in patients with atrial fibrillation.

The Atrial Fibrillation Better Care (ABC) Pathway and Clinical Outcomes in Patients with Atrial Fibrillation: the Prospective Murcia AF Project Phase II Cohort

BACKGROUND

The Atrial fibrillation Better Care (ABC) pathway was proposed for a more holistic or integrated care approach to atrial fibrillation (AF) management. We investigated whether adherence with the ABC pathway reduced the risk of adverse clinical outcomes in real-world AF patients starting vitamin K antagonist (VKAs) therapy.

METHODS

Prospective cohort study including AF outpatients starting VKA therapy from July 2016 to June 2018. Patients were considered as adherent if all ABC pathway criteria (A: Avoid stroke; B: Better symptom control; and C: Cardiovascular risk factors/comorbidities management) were fulfilled. The primary endpoints were all-cause mortality, net clinical outcomes (NCOs), major adverse cardiovascular events (MACE), and composite thrombotic/thromboembolic events at 2 years.

RESULTS

We enrolled 1045 patients (51.6% female; median age 77 [70-83] years). Of these, 63.0% (658) were adherent to the ABC pathway and 37% (387) were considered non-adherent. Compared to non-adherent patients, those who were ABC adherent had lower event rates for all-cause mortality (13.76 vs. 6.56; p<0.001), NCOs (19.65 vs. 11.94; p<0.001), and MACE (11.88 vs. 7.75; p=0.006) during the follow-up. Adjusted Cox regression analyses demonstrated that the ABC pathway adherent care reduced the risks of all-cause mortality (aHR 0.57, 95% CI 0.42-0.78), NCOs (aHR 0.72, 95% CI 0.56-0.92), and cardiovascular mortality (aHR 0.54, 95% CI 0.32-0.90). Event-free survivals for all-cause mortality, NCOs (both log-rank p-values <0.001), and MACE (log-rank p-value = 0.004) were also higher in ABC pathway adherent patients.

CONCLUSIONS

In this real-world prospective cohort of AF patients starting VKA therapy, adherence to the ABC pathway management at baseline significantly reduced the risk of NCOs, all-cause mortality, and cardiovascular death at 2 years.

Minimizing drug-drug interactions between dabigatran and levetiracetam through clinical management: a case report

Background

Direct oral anticoagulants (DOACs) are useful for stroke prevention in atrial fibrillation (AF) patients. However, the concomitant administration of Levetiracetam limited their use in clinical practice, although some authors raise doubts about clinical relevance of the interaction.

Case summary

We report a case of a 54-year-old male with AF, cirrhosis, and seizures, in which the assessment of Dabigatran plasma concentration was needed due to the concomitant use of Levetiracetam. In this case, no relevant reduction of trough Dabigatran plasma concentration was found. An increased peak serum level of dabigatran may be obtained delaying levetiracetam administration. The patient was then followed in our clinic and during 32 months of follow-up no ischaemic or haemorrhagic events occurred.

Discussion

The evaluation of DOACs concentration could be helpful to start a tailored therapy in frailty patients.

The 2020 ESC atrial fibrillation guidelines for atrial fibrillation catheter ablation, CABANA, and EAST

Prior randomised clinical trials (RCTs) have suggested that rhythm control offers no benefit compared to accepting AF and instituting rate control in terms of all-cause mortality, CV mortality and sudden death; as a consequence, the ESC AF guidelines have recommended rhythm control for reducing AF-related symptoms and improving quality of life. The Early Treatment of Atrial Fibrillation for Stroke Prevention Trial (EAST-AFNET 4) evaluated whether a more up-to-date rhythm control management strategy provides a benefit in mortality or stroke rates while the Catheter Ablation vs Antiarrhythmic Drug Therapy for Atrial Fibrillation (CABANA) trial evaluated whether catheter ablation was better than drug therapy in preventing a composite of death, disabling stroke, serious bleeding or cardiac arrest. This document critically reviews the recommendations of the 2020 ESC guidelines for the management of AF in the light of these two landmark trials, both of which have underlined the safety of contemporary rhythm control treatment. Considering the safety of the different strategies in modern AF treatment, a personalized approach taking into account the specific patient profile and preferences of the individual patient is needed.

Outcomes in elderly Chinese patients with atrial fibrillation and coronary artery disease. A report from the Optimal Thromboprophylaxis in Elderly Chinese Patients with Atrial Fibrillation ( ChiOTEAF ) registry

Background

Atrial fibrillation (AF) and coronary artery disease (CAD) are closely related; CAD may precede or complicate the clinical course of AF.

Objective

To evaluate the impact of CAD on clinical outcomes among elderly Chinese AF patients.

Methods

The ChiOTEAF registry is a prospective registry conducted in 44 sites from 20 provinces in China between October 2014 and December 2018. Primary outcome was the composite of all‐cause mortality/any thromboembolism (TE)/major bleeding/acute coronary syndrome (ACS).

Results

The eligible cohort for this analysis included 6403 individuals (mean age 74.8 ± 10.7; 39.2% female); of these, 3058 (47.8%) had a history of CAD. On multivariate analysis, CAD was independently associated with a higher odds ratio for ACS (OR: 1.98; 95% CI: 1.12–3.52) without a significant impact on other adverse outcomes. Independent variables associated with the composite outcome among CAD patients were: (i) the use of OAC (OR: 0.55; 95% CI: 0.42–0.72), age (OR: 1.09; 95% CI: 1.08–1.11), heart failure (OR: 1.95; 95% CI: 1.51–2.50), prior ischemic stroke (OR: 1.29; 95% CI: 1.02–1.64), chronic kidney disease (OR: 1.71; 95% CI: 1.32–2.22), and chronic obstructive pulmonary disease (OR: 1.42; 95% CI: 1.06–1.89).

Conclusions

AF patients with CAD were at an increased risk of developing ACS but there was no significant difference in the composite outcome, all cause death, cardiovascular death, thromboembolic events or major bleeding compared to the non‐CAD group. OAC use was inversely associated with adverse events, yet their uptake was poor in the AF‐CAD population.

Clinical Phenotypes of Atrial Fibrillation and Mortality Risk-A Cluster Analysis from the Nationwide Italian START Registry

Patients with atrial fibrillation (AF) still experience a high mortality rate despite optimal antithrombotic treatment. We aimed to identify clinical phenotypes of patients to stratify mortality risk in AF. Cluster analysis was performed on 5171 AF patients from the nationwide START registry. The risk of all-cause mortality in each cluster was analyzed. We identified four clusters. Cluster 1 was composed of the youngest patients, with low comorbidities; Cluster 2 of patients with low cardiovascular risk factors and high prevalence of cancer; Cluster 3 of men with diabetes and coronary disease and peripheral artery disease; Cluster 4 included the oldest patients, mainly women, with previous cerebrovascular events. During 9857 person-years of observation, 386 deaths (3.92%/year) occurred. Mortality rates increased across clusters: 0.42%/year (cluster 1, reference group), 2.12%/year (cluster 2, adjusted hazard ratio (aHR) 3.306, 95% confidence interval (CI) 1.204−9.077, p = 0.020), 4.41%/year (cluster 3, aHR 6.702, 95%CI 2.433−18.461, p < 0.001), and 8.71%/year (cluster 4, aHR 8.927, 95%CI 3.238−24.605, p < 0.001). We identified four clusters of AF patients with progressive mortality risk. The use of clinical phenotypes may help identify patients at a higher risk of mortality.

Impact of Integrated Care Management on Clinical Outcomes in Atrial Fibrillation Patients: A Report From the FANTASIIA Registry

Background

An integrated and holistic approach is increasingly advocated in patients with atrial fibrillation (AF), based on the “Atrial fibrillation Better Care (ABC) pathway: A, Avoid stroke with anticoagulation; B, better symptom management; C, cardiovascular and comorbidity risk management.” The aim of this study was to examine the prevalence of adherence to each component of the ABC pathway and to analyze its impact on long-term prognosis in the “real-world” cohort of AF patients from the FANTASIIA registry.

Methods

This prospective study included consecutive AF outpatients anticoagulated with direct oral anticoagulants (DOAC) or vitamin K antagonists (VKA) from June 2013 to October 2014. From the ABC pathway, adherence to the “A criterion” was defined by a time in the therapeutic range (TTR) ≥ 70% or correct dose with DOAC; “B criterion” adherence was defined by a European Heart Rhythm Association (EHRA) Symptom Scale I-II; and “C criterion” adherence was defined as optimized risk factors and comorbidity management. Baseline features and embolic events, severe bleeding, and all-cause and cardiovascular mortality rates up to 3 years of follow-up were analyzed, and a Cox multivariate analysis was performed to investigate the role of each component of the ABC pathway in predicting major events.

Results

A total of 1,955 AF patients (age: 74.4 ± 9.4 years; 43.2% female patients) were included in this study: adherence to A criterion was observed in 920 (47.1%) patients; adherence to B criterion was observed in 1,791 (91.6%) patients; and adherence to C criterion was observed in 682 (34.8%) patients. Only 394 (20.2%) of the whole population had good control of AF according to the ABC pathway. After a median follow-up of 1,078 days (IQR: 766–1,113), adherence to A criterion was independently associated with reduced cardiovascular mortality [HR: 0.67, 95%CI (0.45–0.99); p = 0.048] compared with non-adherence. Adherence to the B criterion was independently associated with reduced stroke [HR: 0.28, 95%CI (0.14–0.59); p < 0.001], all-cause mortality [HR: 0.49, 95%CI (0.35–0.69); p < 0.001], cardiovascular mortality [HR: 0.39, 95%CI (0.25–0.62); p < 0.001], and major adverse cardiovascular events (MACE) [HR: 0.41, 95%CI (0.28–0.62); p < 0.001] compared with non-adherence. AF patients with C criterion adherence had a significantly lower risk of myocardial infarction [HR: 0.31, 95%CI (0.15–0.66); p < 0.001]. Fully adherent ABC patients had a significant reduction in MACE [HR: 0.64, 95%CI (0.42–0.99); p = 0.042].

Conclusion

In real-world anticoagulated AF patients from FANTASIIA registry, we observed a lack of adherence to integrated care management of AF following the ABC pathway. AF managed according to the ABC pathway was associated with a significant reduction in adverse outcomes during long follow-up, suggesting the benefit of a holistic and integrated approach to AF management.

Mediterranean Diet: A Tool to Break the Relationship of Atrial Fibrillation with the Metabolic Syndrome and Non-Alcoholic Fatty Liver Disease

Atrial fibrillation (AF) is the most common supraventricular arrhythmia associated with increased cardiovascular and non-cardiovascular morbidity and mortality. As multiple factors may predispose the onset of AF, the prevention of the occurrence, recurrence and complications of this arrhythmia is still challenging. In particular, a high prevalence of cardio-metabolic comorbidities such as the metabolic syndrome (MetS) and in its hepatic manifestation, the non-alcoholic fatty liver disease (NAFLD), have been described in the AF population. A common pathogenetic mechanism linking AF, MetS and NAFLD is represented by oxidative stress. For this reason, in the past decades, numerous studies have investigated the effect of different foods/nutrients with antioxidant properties for the prevention of, and their therapeutic role is still unclear. In this narrative comprehensive review, we will summarize current evidence on (1) the association between AF, MetS and NAFLD (2) the antioxidant role of Mediterranean Diet and its components for the prevention of AF and (3) the effects of Mediterranean Diet on MetS components and NAFLD.

Circulating Lipopolysaccharides and Impaired Antioxidant Status in Patients With Atrial Fibrillation. Data From the ATHERO-AF Study

Objectives: Atrial fibrillation (AF) is characterized by an oxidative imbalance, which is associated with an increased risk of cardiovascular events (CVEs). It is unclear whether low grade endotoxemia may contribute to the impaired antioxidant status in AF patients. We investigated the relationship between circulating lipopolysaccharides (LPS) and antioxidant status in AF patients.

Patients and Methods:Post-hoc analysis from the ongoing prospective observational cohort ATHERO-AF study including 907 patients. Antioxidant status was evaluated by the activity of glutathione peroxidase 3 (GPx3) and superoxide dismutase (SOD). Patients were divided into two groups to evaluate the risk of CVEs: (1) LPS below median and GPx3 above median (n = 254); (2) LPS above median and GPx3 below median (n = 263).

Results: The mean age was 73.5 ± 8.3 years, and 43.1% were women. Median LPS and GPx3 were 50.0 pg/ml [interquartile range (IQR) 15–108] and 20.0 U/ml (IQR 10.0–34.0), respectively. Patients of Groups 2 were older, with a higher prevalence of heart failure. LPS above the median was associated with reduced GPx3 [Odds Ratio for LPS 1.752, 95% Confidence Interval (CI) 1.344–2.285, p < 0.001] and SOD (OR 0.525, 95%CI 0.403–0.683) activity after adjustment for CHA₂DS₂VASc score. In a mean follow-up of 54.0 ± 36.8 months, 118 CVEs occurred, 42 in Group 1 and 76 in Group 2 (Log-Rank test p = 0.001). At multivariable Cox regression analysis, Group 2 was associated with a higher risk of CVEs [Hazard Ratio (HR) 1.644, 95%CI 1.117–2,421, p = 0.012], along with age ≥ 75 years (HR 2.035, 95%CI 1.394–2.972, p < 0.001), diabetes (HR 1.927, 95%CI 1.280–2.900, p = 0.002), and previous cerebrovascular disease (HR 1.895, 95%CI 1.251–2.870, p = 0.003) and previous cardiovascular disease (HR 1.708, 95%CI 1.149–2.538, p = 0.008).

Conclusions: Our study indicates that circulating LPS may contribute to impaired antioxidant status in patients with AF. Patients with coincidentally high LPS and reduced GPx3 activity showed the highest risk of CVEs.

World Heart Federation Roadmap on Atrial Fibrillation - A 2020 Update

The World Heart Federation (WHF) commenced a Roadmap initiative in 2015 to reduce the global burden of cardiovascular disease and resultant burgeoning of healthcare costs. Roadmaps provide a blueprint for implementation of priority solutions for the principal cardiovascular diseases leading to death and disability. Atrial fibrillation (AF) is one of these conditions and is an increasing problem due to ageing of the world's population and an increase in cardiovascular risk factors that predispose to AF. The goal of the AF roadmap was to provide guidance on priority interventions that are feasible in multiple countries, and to identify roadblocks and potential strategies to overcome them. Since publication of the AF Roadmap in 2017, there have been many technological advances including devices and artificial intelligence for identification and prediction of unknown AF, better methods to achieve rhythm control, and widespread uptake of smartphones and apps that could facilitate new approaches to healthcare delivery and increasing community AF awareness. In addition, the World Health Organisation added the non-vitamin K antagonist oral anticoagulants (NOACs) to the Essential Medicines List, making it possible to increase advocacy for their widespread adoption as therapy to prevent stroke. These advances motivated the WHF to commission a 2020 AF Roadmap update. Three years after the original Roadmap publication, the identified barriers and solutions were judged still relevant, and progress has been slow. This 2020 Roadmap update reviews the significant changes since 2017 and identifies priority areas for achieving the goals of reducing death and disability related to AF, particularly targeted at low-middle income countries. These include advocacy to increase appreciation of the scope of the problem; plugging gaps in guideline management and prevention through physician education, increasing patient health literacy, and novel ways to increase access to integrated healthcare including mHealth and digital transformations; and greater emphasis on achieving practical solutions to national and regional entrenched barriers. Despite the advances reviewed in this update, the task will not be easy, but the health rewards of implementing solutions that are both innovative and practical will be great.

Adherence to the 'Atrial Fibrillation Better Care' Pathway in Patients with Atrial Fibrillation: Impact on Clinical Outcomes-A Systematic Review and Meta-Analysis of 285,000 Patients

OBJECTIVE

 The 'Atrial fibrillation Better Care' (ABC) pathway has been recently proposed as a holistic approach for the comprehensive management of patients with atrial fibrillation (AF). We performed a systematic review of current evidence for the use of the ABC pathway on clinical outcomes.

METHODS AND RESULTS

 We performed a systematic review and meta-analysis according to PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. PubMed and EMBASE were searched for studies reporting the prevalence of ABC-pathway-adherent management in AF patients, and its impact on clinical outcomes (all-cause death, cardiovascular death, stroke, and major bleeding). Meta-analysis of odds ratio (OR) was performed with random-effects models; subgroup analysis and meta-regression were performed to account for heterogeneity. Among the eight studies included, we found a pooled prevalence of ABC-adherent management of 21% (95% confidence interval, CI: 13-34%), with a high grade of heterogeneity, explained by the increasing adherence to each ABC criterion. Patients treated according to the ABC pathway showed a lower risk of all-cause death (OR: 0.42; 95% CI: 0.31-0.56), cardiovascular death (OR: 0.37; 95% CI: 0.23-0.58), stroke (OR: 0.55; 95% CI: 0.37-0.82) and major bleeding (OR: 0.69; 95% CI: 0.51-0.94), with moderate heterogeneity. Prevalence of comorbidities was moderators of heterogeneity for all-cause and cardiovascular death, while longer follow-up was associated with increased effectiveness for all outcomes.

CONCLUSION

 Adherence to the ABC pathway was suboptimal, being adopted in one in every five patients. Adherence to the ABC pathway was associated with a reduction in the risk of major adverse outcomes.