Abstract 205: New Onset Heart Failure and Adverse Ischemic Events Associated with Amiodarone and Dronedarone Use among Atrial Fibrillation Patients

Author(s):  
Gosia Sylwestrzak ◽  
Jinan Liu ◽  
Alan Rosenberg ◽  
Jeffrey White ◽  
John Barron ◽  
...  

Background: Dronedarone is a non-iodinated form of amiodarone that may not cause some of serious adverse effects associated with amiodarone. However, it is less effective than amiodarone in maintaining normal sinus rhythm, and it does not improve success of electrical cardioversion. Additionally, dronedarone use has been associated with new onset or worsening of heart failure (HF), including a doubling of the risk of death in patients with symptomatic heart failure. We aimed to compare the incidence of newly diagnosed HF and HF hospitalizations among dronedarone and amiodarone users. Secondary outcomes of interest included rates of acute ischemic stroke (IS) and transient ischemic attack (TIA). Methods: This retrospective study utilized administrative claims data between 1/1/2007-9/30/2011 from the HealthCore Integrated Research Environment (HIRE ® ). Patients were required to have at least one claim for atrial fibrillation. Propensity score matching was employed to adjust for differences between the cohorts. Incidence rate of HF, HF hospitalizations, IS and TIA events were compared between matched cohorts using Poisson time-to-event model. Results: The cohort consisted of 6,013 amiodarone and 1,534 dronedarone patients. Dronedarone patients were younger, healthier per Deyo-Charlson Index (DCI) and CHADS2 score, and less likely to have underlying heart disease (all p-values<0.05). In the propensity score matching process 838 patients with comparable baseline characteristics were selected in each group. Median follow up was 552 days in the amiodarone cohort and 412 days in the dronedarone cohort. Among patients without HF history, new onset HF incidence rate was 34.6 per 100 person-year in amiodarone cohort and 19.1 per 100 person-year in dronedarone cohort (IRR=1.61, 95% CI: 1.30-2.01, p<0.01). The incidence rate for HF hospitalization was also higher in amiodarone patients-- 10.7 per 100 person-year against 7.8 per 100 person-year for dronedarone (IRR=1.39, 95% CI: 1.02-1.85, p=0.03). For IS, the incidence rate was 1.68 per 100 person-year in amiodarone vs. 0.84 in dronedarone but results did not reach statistical significance (IRR=1.91, 95% CI: 0.84-4.30, p=0.12); for TIA, it was 3.67 vs. 2.35 for amiodarone and dronedarone respectively (IRR=2.01, 95% CI: 1.14-3.57, p=0.02). Conclusions: In a propensity score matched observational cohort study, amiodarone use was associated with higher incidence rate of new onset HF, HF hospitalizations, and TIA as identified from claims. This finding differs from other clinical studies. Future observational cohort studies should incorporate medical record review for validation since information from claims might be insufficient to fully account for underlying patient risk status, or accurately determine if HF was new onset. Key words: amiodarone; dronedarone; atrial fibrillation; heart failure.

2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
H Ogawa ◽  
M Esato ◽  
K Minami ◽  
S Ikeda ◽  
K Doi ◽  
...  

Abstract Background Patients with atrial fibrillation (AF) occasionally require pacemaker implantation. Meanwhile, patients with implanted pacemaker are occasionally found to have subclinical AF and develop clinical AF. However, little is known about the clinical outcomes of AF patients with implanted pacemaker. Purpose We aimed to investigate the clinical outcomes in AF patients undergoing previous pacemaker therapy. Methods The Fushimi AF Registry is a community-based prospective survey of the AF patients in a city of Japan. Follow-up data including prescription status were available for 4,447 patients. After exclusion of patients with implantable cardioverter defibrillator and cardiac resynchronization therapy, we investigated 293 AF patients with pacemaker implantation at baseline. We performed propensity score-matching analysis to assess the impact of pacemaker therapy in AF patients. Results Of a total cohort, patients with pacemaker were more often female (51.2% vs. 39.7%; p&lt;0.01) and older (78.0 vs. 73.3 years of age; p&lt;0.01). Patients with pacemaker were more likely to have pre-existing heart failure (33.1% vs. 26.6%; p&lt;0.01), valvular heart disease (22.9% vs. 16.8%; p&lt;0.01), chronic kidney disease (48.8% vs. 34.7%; p&lt;0.01), and history of performing direct current cardioversion (7.2% vs. 3.1%; p&lt;0.01), compared with patients without pacemaker. Mean CHA2DS2-VASc score was higher in patients with pacemaker (3.80 vs. 3.34; p&lt;0.01). Patients with pacemaker were more often prescribed oral anticoagulants (62.1% vs. 55.2%; p=0.02), verapamil (13.3% vs. 9.4%; p=0.03), and loop diuretics (30.7% vs. 21.8%; p&lt;0.01). Using propensity score-matching, 291 patients with pacemaker and 291 without pacemaker were matched and baseline characteristics were comparable. The median follow-up period was 1,819 days. All-cause death occurred in 91 patients with pacemaker (6.0 /100 person-years) and 79 patients without pacemaker (5.9 /100 person-years), with a hazard ratio (HR) for patients with pacemaker of 1.01 (95% confidence interval [CI], 0.75 to 1.37; p=0.93). Furthermore, HR of cardiac death for patients with pacemaker was 1.00 (95% CI, 0.23 to 4.32; p=0.99), that of stroke or systemic embolism was 0.69 (95% CI, 0.44 to 1.07; p=0.10) and that of hospitalization for heart failure was 0.94 (95% CI, 0.65 to 1.37; p=0.76). Conclusion We identified that patients undergoing previous pacemaker therapy were not associated with the incidence of various adverse clinical events in Japanese AF patients. FUNDunding Acknowledgement Type of funding sources: Private company. Main funding source(s): Boehringer Ingelheim, Bayer Healthcare, Pfizer, Bristol-Myers Squibb, Astellas Pharma, AstraZeneca, Daiichi Sankyo, Novartis Pharma, MSD, Sanofi-Aventis, Takeda Pharmaceutical, and the Practical Research Project for Life-Style related Diseases including Cardiovascular Diseases and Diabetes Mellitus from Japan Agency for Medical Research and Development.


2021 ◽  
Vol 10 (18) ◽  
Author(s):  
Rui Zhao ◽  
Zhao Wang ◽  
Fangfang Cao ◽  
Jian Song ◽  
Shuya Fan ◽  
...  

Background It is well established that postoperative atrial fibrillation (POAF) is associated with adverse postoperative outcomes after major cardiac operations. The purpose of this study was to investigate the incidence of new‐onset POAF after successful total arch repair surgery and the association between POAF and in‐hospital mortality. Methods and Results All consecutive patients undergoing total arch repair from September 2012 to December 2019 in Fuwai hospital were enrolled (n=1280). Patients diagnosed with preoperative atrial fibrillation were excluded. POAF was diagnosed as the new‐onset atrial fibrillation or flutter for more than 5 minutes based on continuous electrocardiogram monitoring. A logistic regression model was used to determine predictors of in‐hospital mortality. Multivariable adjustment, inverse probability of treatment weighting, and propensity score matching were used to adjust for confounders. POAF was diagnosed in 32.3% (411/1271) of this cohort population. The occurrence of new‐onset POAF was associated with age (odds ratio [OR], 1.05; 95% CI, 1.04–1.06; P <0.001), male sex (OR, 0.72; 95% CI, 0.52–0.98; P =0.035), and surgery duration (OR, 1.2; 95% CI, 1.12–1.28; P <0.001). The in‐hospital mortality was significantly higher in patients with POAF than those without POAF (10.7% versus 2.4%, P <0.001). Inverse probability of treatment weighting and propensity score matching analyses confirmed the results. The increased in‐hospital mortality in POAF group still existed among subgroup analysis based on different age, sex, hypertension, smoking, and hypokalemia, combined with cardiac surgery, and deep hypothermic circulatory arrest. Conclusions More careful attention should be given to POAF after total arch repair surgery. The incidence of POAF after total arch repair surgery was 32.3% and associated with increased in‐hospital mortality. The elderly female patient who experienced longer operation duration was at highest risk for POAF.


2018 ◽  
Vol 7 (9) ◽  
pp. 229 ◽  
Author(s):  
Ya-Hui Wang ◽  
Chih-Cheng Lai ◽  
Cheng-Yi Wang ◽  
Hao-Chien Wang ◽  
Chong-Jen Yu ◽  
...  

The association between Atrial Fibrillation (AF) and pneumonia remains unclear. This study aims to assess the impact of AF on high pneumonia risk group—chronic obstructive pulmonary disease (COPD)—In order to find the association between AF and the risk of pneumonia. The COPD cohort was extracted from National Health Research Institute of Taiwan. The AF cohort comprised all COPD patients with new-onset AF (International Classification of Diseases (ICD)-9 code 427.31) after COPD diagnosis. We further sampled non-AF cohort and performed 1:1 propensity score matched analysis to improve the balance of baseline characteristics between AF and non-AF cohort. The outcomes were pneumonia and pneumonia requiring mechanical ventilation (MV). From 2000–2011, a total of 6228 patients with COPD and AF, and matched 84,106 control subjects were enrolled. After propensity score matching, we identified 6219 patients, each with AF, and matched controls without AF. After propensity score matching, the AF cohorts had higher risk of mortality (adjusted hazard ratio (aHR), 1.24; 95% confidence interval (CI), 1.15–1.34), pneumonia (aHR, 1.17; 95% CI, 1.07–1.27), and pneumonia requiring MV (aHR, 1.33; 95% CI, 1.18–1.50) in comparison with the matched non-AF cohort. After adjusting for mortality from causes other than outcomes of interest as a competing risk, AF remains significantly associated with pneumonia and pneumonia requiring MV. The risks of pneumonia were higher in this population with AF than in those without AF, and the risk was still significant after the adjustment for the competing risk of all-cause mortality.


2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Amy Groenewegen ◽  
Victor W. Zwartkruis ◽  
Betül Cekic ◽  
Rudolf. A. de Boer ◽  
Michiel Rienstra ◽  
...  

Abstract Background Diabetes has strongly been linked to atrial fibrillation, ischaemic heart disease and heart failure. The epidemiology of these cardiovascular diseases is changing, however, due to changes in prevalence of obesity-related conditions and preventive measures. Recent population studies on incidence of atrial fibrillation, ischaemic heart disease and heart failure in patients with diabetes are needed. Methods A dynamic longitudinal cohort study was performed using primary care databases of the Julius General Practitioners’ Network. Diabetes status was determined at baseline (1 January 2014 or upon entering the cohort) and participants were followed-up for atrial fibrillation, ischaemic heart disease and heart failure until 1 February 2019. Age and sex-specific incidence and incidence rate ratios were calculated. Results Mean follow-up was 4.2 years, 12,168 patients were included in the diabetes group, and 130,143 individuals in the background group. Incidence rate ratios, adjusted for age and sex, were 1.17 (95% confidence interval 1.06–1.30) for atrial fibrillation, 1.66 (1.55–1.83) for ischaemic heart disease, and 2.36 (2.10–2.64) for heart failure. Overall, incidence rate ratios were highest in the younger age categories, converging thereafter. Conclusion There is a clear association between diabetes and incidence of the major chronic progressive heart diseases, notably with heart failure with a more than twice increased risk.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
B Joung ◽  
P.S Yang ◽  
J.H Sung ◽  
E Jang ◽  
H.T Yu ◽  
...  

Abstract Background It is unclear whether catheter ablation is beneficial in frail patients with AF. Purpose This study aimed to evaluate whether catheter ablation reduces death and other outcomes in real-world frail patients with atrial fibrillation (AF). Methods Out of 801,710 patients with AF in the Korean National Health Insurance Service database from 2006 to 2015, 1,411 frail patients underwent AF ablations. The Hospital Frailty Risk Score were calculated retrospectively. Inverse probability of treatment weighting (IPTW) was used to categorize ablation and non-ablation frail groups. Results After IPTW, the two cohorts had similar background characteristics. During a median follow-up of 4.7 years (interquartile range: 2.2–7.8), the risk of death in frail patients with ablations was reduced by 65% compared to frail patients without ablations (2.0 and 6.4 per 100 person-years, respectively; hazard ratio [HR] 0.35; 95% confidence interval [CI] 0.25–0.50; P&lt;0.001). Ablations were related with a lower incidence and risk of heart failure admission (1.8 and 3.1 per 100 person-years, respectively; HR 0.66, 95% CI 0.44–0.98; P=0.042) and acute myocardial infarction (0.2 and 0.6 per 100 person-years, respectively; HR 0.30, 95% CI 0.15–0.62; P=0.001). However, the risk of stroke did not change after ablation. Conclussion Ablation may be associated with lower incidences of death, heart failure, and acute myocardial infarction in real-world frail patients with AF, supporting the role of AF ablation in these patients. The effect of frailty risk on the outcome of ablation should be evaluated in further studies. Funding Acknowledgement Type of funding source: None


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
S.L Xu ◽  
J Luo ◽  
H.Q Li ◽  
Z.Q Li ◽  
B.X Liu ◽  
...  

Abstract Background New-onset atrial fibrillation (NOAF) complicating acute myocardial infarction (AMI) has been associated with poor survival, but the clinical implication of NOAF on subsequent heart failure (HF) is still not well studied. We aimed to investigate the relationship between NOAF following AMI and HF hospitalization. Methods This retrospective cohort study was conducted between February 2014 and March 2018, using data from the New-Onset Atrial Fibrillation Complicating Acute Myocardial Infarction in ShangHai registry, where all participants did not have a documented AF history. Patients with AMI who discharged alive and had complete echocardiography and follow-up data were analyzed. The primary outcome was HF hospitalization, which was defined as a minimum of an overnight hospital stay of a participant who presented with symptoms and signs of HF or received intravenous diuretics. Results A total of 2075 patients were included, of whom 228 developed NOAF during the index AMI hospitalization. During up to 5 years of follow-up (median: 2.7 years), 205 patients (9.9%) experienced HF hospitalization and 220 patients (10.6%) died. The incidence rate of HF hospitalization among patients with NOAF was 18.4% per year compared with 2.8% per year for those with sinus rhythm. After adjustment for confounders, NOAF was significantly associated with HF hospitalization (hazard ratio [HR]: 3.14, 95% confidence interval [CI]: 2.30–4.28; p&lt;0.001). Consistent result was observed after accounting for the competing risk of all-cause death (subdistribution HR: 3.06, 95% CI: 2.18–4.30; p&lt;0.001) or performing a propensity score adjusted multivariable model (HR: 3.28, 95% CI: 2.39–4.50; p&lt;0.001). Furthermore, the risk of HF hospitalization was significantly higher in patients with persistent NOAF (HR: 5.81; 95% CI: 3.59–9.41) compared with that in those with transient NOAF (HR: 2.61; 95% CI: 1.84–3.70; p interaction = 0.008). Conclusion NOAF complicating AMI is strongly associated with an increased long-term risk of heart. Cumulative incidence of outcome Funding Acknowledgement Type of funding source: Public grant(s) – National budget only. Main funding source(s): 1. National Natural Science Foundation of China, 2. Natural Science Foundation of Shanghai


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