scholarly journals Under-recognition of heart failure in patients with atrial fibrillation and the impact of gender: a UK population-based cohort study

BMC Medicine ◽  
2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Rosita Zakeri ◽  
Ann D. Morgan ◽  
Varun Sundaram ◽  
Chloe Bloom ◽  
John G. F. Cleland ◽  
...  

Abstract Background Patients with atrial fibrillation (AF) complicated by heart failure (HF) have a poor prognosis. We investigated whether long term loop-diuretic therapy in patients with AF and no known diagnosis of HF, as a potential surrogate marker of undiagnosed HF, is also associated with worse outcomes. Methods Adults with incident AF were identified from UK primary and secondary care records between 2004 and 2016. Repeat prescriptions for loop diuretics, without a diagnosis of HF or documented non-cardiac indication, were classified as ‘isolated’ loop diuretic use. Results Amongst 124,256 people with incident AF (median 76 years, 47% women), 22,001 (17.7%) had a diagnosis of HF, and 22,325 (18.0%) had isolated loop diuretic use. During 2.9 (LQ-UQ 1–6) years’ follow-up, 12,182 patients were diagnosed with HF (incidence rate 3.2 [95% CI 3.1–3.3]/100 person-years). Of these, 3999 (32.8%) had prior isolated loop diuretic use, including 31% of patients diagnosed with HF following an emergency hospitalisation. The median time from AF to HF diagnosis was 3.6 (1.2–7.7) years in men versus 5.1 (1.8–9.9) years in women (p = 0.0001). In adjusted models, patients with isolated loop diuretic use had higher mortality (HR 1.42 [95% CI 1.37–1.47], p < 0.0005) and risk of HF hospitalisation (HR 1.60 [95% CI 1.42–1.80], p < 0.0005) than patients with no HF or loop diuretic use, and comparably poor survival to patients with diagnosed HF. Conclusions Loop diuretics are commonly prescribed to patients with AF and may indicate increased cardiovascular risk. Targeted evaluation of these patients may allow earlier HF diagnosis, timely intervention, and better outcomes, particularly amongst women with AF, in whom HF appears to be under-recognised and diagnosed later than in men.

Author(s):  
PRUDENCE A RODRIGUES ◽  
SOUMYA GK ◽  
NADIA GRACE BUNSHAW ◽  
SARANYA N ◽  
SUJITH K ◽  
...  

Objective: The objective of the study was to monitor the impact of loop diuretic therapy in patients with acute decompensated heart failure (ADHF) and to assess other predictors of renal dysfunction in patients with ADHF. Methods: An observational study over a period of 6 months from January 2018 to June 2018 in the Department of Cardiology, in a Tertiary Care Teaching Hospital, Coimbatore, Tamil Nadu. Patients on diuretic therapy (loop diuretic) were enrolled. Patients with prior chronic kidney disease were excluded from the study. The patients were evaluated based on change in serum creatinine (SCr) and other contributing factors were assessed by acute kidney injury network and worsening of renal function criteria. Results: A total of 135 patients were enrolled, of which 73% were males and 27% were females. The mean age of the subjects was 61.55±13 years. The baseline means SCr was 1.62±0.92 mg/dl. On evaluation, 41% were really affected and 59% remain unaffected. Factors such as hypertension (p=0.047) and angiotensin-converting enzyme inhibitors (ACE-I) (p=0.023) were found to be significant predictors of renal injury. Conclusion: Variation in renal function in ADHF patients was multifactorial. The direct influence of loop diuretics on renal function was present but was not well established. Hypertension and ACE-I have found to show influence in the development of renal injury as contributing factors. There exists both positive and negative consequence of loop diuretics on renal function.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
M Samuel ◽  
M Abrahamowicz ◽  
J Joza ◽  
V Essebag ◽  
L Pilote

Abstract Background Atrial fibrillation (AF) and heart failure (HF) are common co-existing conditions. Randomized trial data suggests a reduction in all-cause mortality with catheter ablation (CA) in selected patients, however, whether these results are replicable in a real-world population and persist in the long-term remains to be shown. Purpose To evaluate the long-term effectiveness of CA in AF-HF patients in reducing the incidence of: a) all-cause mortality b) HF hospitalizations, and c) major morbidities (stroke/transient ischemic attack (TIA) and major bleeding). Methods A population-based administrative cohort was created of AF-HF patients with government prescription coverage in Quebec, Canada (1999–2015). Patients who underwent CA (cases) were matched 1:2 to controls using risk-set sampling. Cases were matched on time in the cohort and frequency of hospitalizations. Measured time-invariant confounders were controlled for using inverse probability of treatment weighting (IPTW) and included age, sex, clinical characteristics, presence of cardiac implantable electronic devices, and medication use. Multivariable Cox models adjusted the association of CA with the outcomes for the time varying confounders of the presence of an implantable cardioverter defibrillator (ICD) or cardiac resynchronization therapy (CRT), anticoagulation use (warfarin or direct oral anticoagulation), and any antiarrhythmic (AAD) use during follow-up. For non-fatal outcomes, the competing risk of death was accounted for using the Lunn-McNeil approach. Results Of the 87,676 AF-HF patients, 298 underwent CA and were matched to 591 controls. After IPTW, the distribution of covariates was balanced between cases and controls [age 65.6±11.0 vs 61.6±11.6; women 24% vs 20%; CHA2DS2-Vasc score 3.2±2.3 vs 2.9±2.1; CA vs non-CA, respectively; standardized mean differences <0.1 for all]. Over a median follow-up of 3.3 (IQR 1.1–6.4) years, 19 (7.3%) of CA patients died compared to 144 (24.6%) non-CA patients. After weighting and adjustment, CA was associated with a statistically significant reduction in the incidence of all-cause mortality [adjusted HR 0.5 (95% CI 0.3–0.9)]. In addition, there was no statistically significant difference in the incidence of HF hospitalizations over the follow-up [CA: 22.5% vs non-CA: 27.1%; adjusted HR 0.9 (95% CI 0.6–1.2)]. The incidences of stroke/TIA (1.7% vs 6.8%) and major bleeding (1.7% vs 4.9%) for CA vs non-CA were not statistically different. Conclusion In a matched population-based AF-HF cohort, CA was associated with a reduced risk of all-cause mortality compared to patients who did not undergo CA. Although no difference in the risk of HF hospitalizations, stroke/TIA, and major bleeding was detected between CA and non-CA patients, larger studies are warranted. Acknowledgement/Funding Canadian Institute of Health Research; Fonds de recherché du Quebec-Santé, Clinical Research Scholar Award (V. Essebag) and Doctoral Award (M. Samuel)


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
T Yoshizawa ◽  
H Shiomi ◽  
M Tanaka ◽  
T Aizawa ◽  
S Yamagami ◽  
...  

Abstract Background Catheter ablation has been rapidly spread as a first line therapy for atrial fibrillation (AF). A recent randomized trial have shown that AF ablation reduces the risk of death or hospitalization for heart failure (HF). However, the impact of maintained sinus rhythm (SR) on long-term risk of death or HF hospitalization has not been adequately evaluated. Purpose To investigate the impact of maintaining SR by AF ablation on long-term risk of all-cause death or HF hospitalization. Methods The long-term clinical outcomes were compared between patients with maintained SR and those with recurrent AF using a landmark analysis in which the landmark point was set at 1.5-year after the 1st ablation. Results Among consecutive 1467 patients who underwent AF ablation in our institution between February 2004 and December 2017, the study population consisted of 1311 patients after excluding 150 patients because of death or lost to follow-up. Mean age was 67.9±0.3 and paroxysmal AF was 67%. Among 460 patients who had AF recurrence within 1.5 years after the 1st ablation, 328 underwent 2nd ablation. Therefore, at 1.5-year after the 1st AF ablation, 1145 patients had maintained SR rhythm (SR-group), and 166 patients had recurrent AF episodes (AF-group). During 4.7±2.4 years of follow-up, the cumulative 5-year incidence of death or HF beyond 1.5 years after the 1st ablation was 5.1% in SR-group and 15.6% in AF-group (log rank P<0.001). After adjusting for baseline confounders, the lower risk of SR-group relative to AF-group for death or HF was still statistically significant (HR: 2.05, 95% CI: 1.11–3.58, P=0.02). Risks for a Composite of Death or HF Hazard Ratio (95% CI) Crude HR P value Adjusted HR P value AF recurrence 2.59 (1.43–4.43) 0.002 2.05 (1.11–3.58) 0.02 Age>75 years old 2.55 (1.56–4.10) <0.001 2.32 (1.39–3.81) 0.002 Female 0.85 (0.49–1.43) 0.56 0.73 (0.40–1.25) 0.26 PeAF 1.25 (0.68–2.16) 0.45 0.98 (0.52–1.75) 0.94 LSAF 1.10 (0.46–2.23) 0.82 0.70 (0.28–1.53) 0.39 LVEF>50% 0.27 (0.16–0.48) <0.001 0.57 (0.31–1.09) 0.09 Past history of HF 7.06 (4.18–11.6) <0.001 4.67 (2.51–8.41) <0.001 CKD 4.74 (2.08–9.39) <0.001 2.23 (0.94–4.69) 0.07 AF, Atrial fibrillation; PeAF, Persistent AF; LSAF; Long standing AF; HF, Heart failure; CKD, Chronic kidney disease. Figure 1 Conclusions Successfully maintained SR was associated with reduced long-term risk for death or HF hospitalization in real world patients undergoing AF ablation.


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


2004 ◽  
Vol 10 (4) ◽  
pp. S110
Author(s):  
Lynn G. Tarkington ◽  
Salvatore L. Battaglia ◽  
April W. Simon ◽  
Steven D. Culler ◽  
Edmund R. Becker ◽  
...  

Author(s):  
Behnood Bikdeli ◽  
Kelly Strait ◽  
Kumar Dharmarajan ◽  
Chohreh Partovian ◽  
Nancy Kim ◽  
...  

Background: Although loop diuretics are frequently used for patients with heart failure (HF), little is known about the variation in patterns of diuretic therapy in US hospitals. We sought to describe such treatment patterns among a diverse group of hospitals. Methods: We studied HF hospitalizations occurring during 2009-10 in Premier Inc. hospitals participating in a collaborative project to pool administrative and charge data, which includes information about drug types, average daily dose, and duration of therapy. We excluded hospitals with less than 25 HF hospitalizations. For ease of comparison, all diuretic doses were converted to bioequivalent doses of intravenous (IV) furosemide: 40mg IV furosemide ∼ 80mg oral furosemide ∼ 20mg (oral or IV) torsemide ∼ 1mg (oral or IV) bumetanide. Summary statistics were calculated. Results: Among 366 studied hospitals (264,675 HF hospitalizations), use of any loop diuretic had an interquartile range (IQR) from 92% to 96% (median: 94%). At the hospital level, the average daily dose IQR varied from 45mg to 64 mg (median: 55 mg) and the median duration of therapy was 4 days (IQR: 4 to 4; median: 4), as was the median length of stay. The IQR for use of furosemide varied from 89% to 94% (median: 92%), and its median average daily dose had an IQR from 40mg to 60 mg (median: 53 mg). Hospital use of bumetanide had an IQR from 2% to 11%, and hospital use of torsemide had an IQR from 0% to 4% (medians of 5% and 1%, respectively). The variation in median average daily dose for bumetanide and torsemide was greater than for furosemide (bumetanide IQR: 79mg to 127 mg, with median of 89 mg; torsemide IQR: 53mg to 120 mg, with median of 80 mg). Use of IV diuretics on the last day before home discharge had an IQR from 16% to 33% (median: 24%) across hospitals. Conclusion: US hospitals administer loop diuretics, particularly furosemide, to the vast majority of HF inpatients. The duration and daily dosage of therapy was similar across most hospitals. In contrast, a minority of hospitals used bumetanide and torsemide for several patients. The daily dosage of these agents showed more marked variation. We observed a high rate of intravenous diuretic use on the last day of hospitalization, with considerable variation across hospitals.


Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Tilko Reents ◽  
Gabriele Hessling ◽  
Stephanie Fichtner ◽  
Jinjin Wu ◽  
Heidi L Estner ◽  
...  

Background: The catheter ablation of atrial fibrillation (AF) can be performed by ablation of complex fractionated atrial electrograms (CFAE). Endpoint of CFAE ablation is the regularisation or termination of AF. However, the impact of regular atrial tachycardia (AT) occurring during CFAE ablation on long term outcome has not been investigated. Thus, it is not clear whether these tachycardias should be acutely targeted for ablation. Methods: In 43 patients (31 male, age 62±9 years with paroxysmal (15 patients), persistent (25 patietns) or permanent AF (3 patients) organisation of AF to regular AT was achieved by ablation of CFAE. Mapping of AT with subsequent successful ablation was performed in 14/43 patients (33%), in the remaining 29/43 patients (67%) AT was terminated with external cardioversion or pace overdrive. After ablation procedure, patients were seen in our out-patient clinic with repetitive Holter ECG after 1, 3, and subsequently every 3 months and were intensively screened for the occurrence of regular AT. Results: In follow-up 22/43 patients (51%) developed sustained AT necessitating in 20 patients repeat catheter ablation (12 patients) or external cardioversion (8 patients). AF had been paroxysmal in 7/22 and persisten in 15/22 patients with AT in follow-up. In 14/22 patients (63%), no attempt for ablation of AT had been made during the initial procedure, in 8/22 AT (36%) had been mapped and initially successful ablated. Of 21 patients without AT occurrence during follow-up, AF had been paroxysmal in 8/21 and persistent or permanent in 13/21 patients. AT had been mapped and ablated in 6 (29%) whereas in 15/21 patients (71%), AT had not been targeted. Ablation of AT during initial procedure, number of ablation applications, procedure and fluoroscopy duration were not predictive for freedom of AT in follow-up. Conclusion: In our study, mapping and successful ablation of new onset regular atrial tachycardias (AT) occurring during ablation of CFAE for atrial fibrillation was not predictive for the occurrence of AT in follow-up. Thus, results after termination of AT by cardioversion was in long-term comparable to sometimes time-consuming mapping/ablation for AT.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
M I Gonzalez Del Hoyo ◽  
G Cediel ◽  
A Carrasquer ◽  
G Bonet ◽  
K Vasquez-Nunez ◽  
...  

Abstract Background CHA2DS2-VASc score has been used as a surrogate marker for predicting outcomes beyond thromboembolic risk in patients with atrial fibrillation (AF). Likewise, cardiac troponin I (cTnI) is a predictor of mortality in AF. Purpose This study aimed to investigate the association of cTnI and CHA2DS2-VASc score with long-term prognosis in patients admitted to the emergency department with AF. Methods A retrospective cohort study conducted between January 2012 and December 2013, enrolling patients admitted to the emergency department with AF and having documented cTnI measurements. CHA2DS2-VASc score was estimated. Primary endpoint was 5-year all-cause mortality, readmission for heart failure (HF), readmission for myocardial infarction (MI) and the composite end point of major adverse cardiac events defined as death, readmission for HF or readmission for MI (MACE). Results A total of 578 patients with AF were studied, of whom 252 patients had elevated levels of cTnI (43.6%) and 334 patients had CHA2DS2-VASc score >3 (57.8%). Patients with elevated cTnI tended to be oldercompared with those who did not have cTnI elevation and were more frequently comorbid and of higher ischemic risk, including hypertension, prior MI, prior HF, chronic renal failure and peripheral artery disease. The overall median CHA2DS2-VASc score was higher in those with cTnI elevation compared to those patients elevated cTnI levels (4.2 vs 3.3 points, p<0.001). Main diagnoses at hospital discharge were tachyarrhythmia 30.3%, followed by heart failure 17.7%, respiratory infections 9.5% and acute coronary syndrome 7.3%. At 5-year follow-up, all-cause death was significantly higher for patients with cTnI elevation compared with those who did not have cTnI elevation (56.4% vs. 27%; logrank test p<0.001). Specifically, for readmissions for HF and readmissions for MI there were no differences in between patients with or without cTnI elevation. In addition, MACE was reached in 165 patients (65.5%) with cTnI elevation, compare to 126 patients (38.7%) without cTnI elevation (p<0.001). On multivariable Cox regression analysis, cTnI elevation was an independent predictor of all-cause death (hazard ratio, 1.67, 95% confidence interval [CI]: 1.24–2.26, p=0.001) and of MACE (hazard ratio 1.47, 95% confidence interval 1.15–1.88; P=0.002), but it did not reach statistical significance for readmissions for MI and readmissions for HF. CHA2DS2-VASc score was a predictor on univariate Cox regression analysis for each endpoint, but it did not reach significance on multivariable Cox regression analysis for any endpoint. Conclusions cTnI is independently associated with long-term all-cause mortality in patients attending the emergency department with AF. cTnI compared to CHA2DS2-VASc score is thus a biomarker with predictive capacity for mortality in late follow-up, conferring utility in the risk stratification of patients with atrial fibrillation.


2020 ◽  
Vol 13 (11) ◽  
Author(s):  
Ravi B. Patel ◽  
Hongyan Ning ◽  
Ian H. de Boer ◽  
Bryan Kestenbaum ◽  
João A.C. Lima ◽  
...  

Background: Although FGF23 (fibroblast growth factor 23) is associated with heart failure and atrial fibrillation, the mechanisms driving these associations are unclear. Sensitive measures of cardiovascular structure and function may provide mechanistic insight behind the associations of FGF23 with various cardiovascular diseases. Methods: In MESA (the Multi-Ethnic Study of Atherosclerosis), we evaluated the associations of baseline serum FGF23 (2000–2002) with measures of left ventricular (LV) and left atrial mechanical function on cardiac magnetic resonance at 10-year follow-up (2010–2012). Results: Of 2276 participants with available FGF23 and cardiac magnetic resonance at 10-year follow-up, participants with higher FGF23 levels were more likely White race, taking antihypertensive medications, and had lower kidney function. After covariate adjustment, FGF23 was associated with higher LV mass (β coefficient per 1 SD higher, 1.14 [95% CI, 0.16–2.12], P =0.02), worse LV global circumferential strain (β coefficient per 1 SD higher, 0.15 [95% CI, 0.05–0.25], P =0.003), worse LV midwall circumferential strain (β coefficient per 1 SD higher, 0.20 [95% CI, 0.08–0.31], P =0.001), and lower left atrial total emptying fraction (β coefficient per 1 SD higher, −0.52 [95% CI, −1.02 to −0.02], P =0.04). These associations were consistent across racial/ethnic groups and the spectrum of glomerular filtration rates. FGF23 was not associated with the presence of myocardial scar (odds ratio per 1 SD higher, 1.12 [95% CI, 0.86–1.45], P =0.42). Conclusions: In a multiethnic, community-based cohort, baseline FGF23 levels were independently associated with higher LV mass, lower LV systolic function, and reduced left atrial function over long-term follow-up. These findings provide potential mechanistic insight into associations of FGF23 with incident heart failure and atrial fibrillation.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Tetsuri Sakai ◽  
Atsuhiko Yagishita ◽  
Masahiro Morise ◽  
Susumu Sakama ◽  
Takeshi Ijichi ◽  
...  

AbstractWe sought to demonstrate the impact of improved peak exercise oxygen consumption (V̇O2) during maximal exercise testing after cardiac rehabilitation (CR) on the incidence of arrhythmias in patients with heart failure (HF). The present study comprised of 220 patients with HF, and peak V̇O2 was examined at 2 and 5 months after CR. Of the 220 patients, 110 (50%) had a low peak V̇O2 of < 14 mL/min/kg at 2 months. The peak V̇O2 improved in 86 of these 110 (78%) patients at 5 months after CR. During a median follow-up of 6 years, the patients with improvement in peak V̇O2, compared to those without peak V̇O2 improvement, had a lower rate of mortality (4% vs. 29%, log-rank, P < 0.001) and HF hospitalization (6 vs. 17%, log-rank, P = 0.044) and a lower incidence of new-onset atrial arrhythmias (9 vs. 27%, log-rank, P = 0.013), with no difference in the incidence of ventricular arrhythmias between groups (1 vs. 4%, log-rank, P = 0.309). The majority of deaths in the patients without an improved peak V̇O2 were because of cardiovascular events (73%), particularly progressive HF (55%). Early detection and management of atrial arrhythmias may improve outcomes in patients without peak V̇O2 improvement after CR.


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