Antithrombotic therapy and the risk of new-onset dementia in elderly patients with atrial fibrillation

2020 ◽  
pp. postgradmedj-2020-137916
Author(s):  
Chun Ka Wong ◽  
Duo Huang ◽  
Mi Zhou ◽  
JoJo Hai ◽  
Wen Sheng Yue ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Antithrombotic Therapy ◽  
Lower Risk ◽  
Female Gender ◽  
Increased Risk ◽  
The Mean ◽  
Relationship Of ◽  
The Relationship ◽  
New Onset

BackgroundAtrial fibrillation (AF) is associated with an increased risk of dementia. Little is known about the relationship of antithrombotic therapy and the risk of dementia in patients with AF without clinical stroke.MethodThis was an observational study based on a hospital AF registry. Patients aged 65–85 years at the time of AF diagnosis were identified via the computerised database of the clinical management system. Patients with prior stroke or known cognitive dysfunction were excluded. The primary outcome was newly diagnosed dementia during the follow-up period.Results3284 patients (mean age 76.4±5.3 years, 51.6% male) were included for analysis. The mean CHA2DS2-VASc score was 3.94±1.44. 18.5% patients were prescribed warfarin, 39.8% were prescribed aspirin and 41.7% were prescribed no antithrombotic therapy. After a mean follow-up of 3.6 years, 71 patients (2.2%) developed dementia, giving rise to an incidence of 0.61%/year. The incidence of dementia were 1.04%/year, 0.69%/year and 0.14%/year for patients on no therapy, aspirin and warfarin, respectively. Both univariate and multivariate analyses showed that age ≥75 years, female gender and high CHA2DS2-VASc score were associated with significantly higher risk of dementia; warfarin use was associated with significantly lower risk of dementia (HR: 0.14%, 95% CI 0.05 to 0.36, p<0.001). Patients on warfarin with time in therapeutic range (TTR) ≥65% had a non-significant trend towards a lower risk of dementia compared with those with TTR <65%.ConclusionIn elderly AF patients, warfarin therapy was associated with a significantly lower risk of new-onset dementia compared those with no therapy or aspirin.

scholarly journals Acute Dental Periapical Abscess and New-Onset Atrial Fibrillation: A Nationwide, Population-Based Cohort Study

2021 ◽  
Vol 10 (13) ◽  
pp. 2927
Author(s):  
Amaar Obaid Hassan ◽  
Gregory Y. H. Lip ◽  
Arnaud Bisson ◽  
Julien Herbert ◽  
Alexandre Bodin ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Cohort Study ◽  
Multivariable Analysis ◽  
National Database ◽  
Increased Risk ◽  
Periapical Abscess ◽  
The Relationship ◽  
Onset Atrial Fibrillation ◽  
New Onset

There are limited data on the relationship of acute dental infections with hospitalisation and new-onset atrial fibrillation (AF). This study aimed to assess the relationship between acute periapical abscess and incident AF. This was a retrospective cohort study from a French national database of patients hospitalized in 2013 (3.4 million patients) with at least five years of follow up. In total, 3,056,291 adults (55.1% female) required hospital admission in French hospitals in 2013 while not having a history of AF. Of 4693 patients classified as having dental periapical abscess, 435 (9.27%) developed AF, compared to 326,241 (10.69%) without dental periapical abscess that developed AF over a mean follow-up of 4.8 ± 1.7 years. Multivariable analysis indicated that dental periapical abscess acted as an independent predictor for new onset AF (p < 0.01). The CHA2DS2VASc score in patients with acute dental periapical abscess had moderate predictive value for development of AF, with Area Under the Curve (AUC) 0.73 (95% CI, 0.71–0.76). An increased risk of new onset AF was identified for individuals hospitalized with dental periapical abscess. Careful follow up of patients with severe, acute dental periapical infections is needed for incident AF, as well as investigations of possible mechanisms linking these conditions.

Abstract 14795: Oral Anticoagulation Associated With Lower Risk of Stroke in Patients With Post-operative Atrial Fibrillation

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Xiaoxi Yao ◽  
Holly Van Houten ◽  
Konstantinos Siontis ◽  
Bernard J Gersh ◽  
Peter A Noseworthy
Keyword(s):  
Atrial Fibrillation ◽  
Major Bleeding ◽  
Lower Risk ◽  
Treatment Strategies ◽  
Administrative Database ◽  
Immortal Time Bias ◽  
Post Operative Atrial Fibrillation ◽  
Increased Risk ◽  
The Mean

Introduction: Recent studies showed post-operative atrial fibrillation (POAF) is associated with increased stroke risk - even approaching that of unprovoked AF. This raises the question of whether patients with POAF should receive anticoagulation. We aim to compare different anticoagulation strategies in patients with POAF after cardiac and non-cardiac surgeries. Methods: Using a large national administrative database (OptumLabs Data Warehouse), we identified 33,981 patients with POAF between 1/1/2013-9/30/2019. Patients were divided to four groups based on the initial treatment within 30 days of POAF: (1) no anticoagulation (N=28,807) (2) apixaban (N=2178) (3) rivaroxaban (N=1320) (4) warfarin (N=1676). Follow up started at the 30 th day after POAF to exclude patients who died shortly after surgery and minimize immortal time bias. The follow up continued until patients changed treatment strategies, insurance, or died. 1:1 propensity score matching was performed between each anticoagulant to no treatment to balance on 86 baseline characteristics. Results: The mean age was 71.1±11.2 yr; mean CHA 2 DS 2 -VASc was 4.1±1.8; 29.1% received cardiac surgeries; 15.2% received anticoagulation within 30 days of POAF. The event rate per 100 person years was 1.58 for stroke in no-anticoagulation group, and 1.29 for anticoagulation group; 2.86 for major bleeding in no-anticoagulation group and 4.50 for anticoagulation group. After matching, apixaban and rivaroxaban were associated with a lower risk of stroke, but a higher risk of major bleeding; warfarin was not associated with a lower risk of stroke, but a higher risk of major bleeding (Figure). The effect was consistent across subgroups, e.g., age and surgery type. Conclusions: In patients with POAF, the stroke rate was lower than what was typically observed in clinical AF. Treatment with apixaban and rivaroxaban immediately after POAF was associated with a reduced risk of stroke but an increased risk of major bleeding.

scholarly journals Diabetes and COVID19: a bidirectional relationship

2021 ◽  
Author(s):  
Ranjit Unnikrishnan ◽  
Anoop Misra
Keyword(s):  
Clinical Care ◽  
Severe Disease ◽  
Respiratory Involvement ◽  
Pancreatic Damage ◽  
Increased Risk ◽  
Bidirectional Relationship ◽  
Rapid Spread ◽  
Relationship Of ◽  
The Relationship ◽  
New Onset

AbstractThe advent and rapid spread of the coronavirus disease-2019 (COVID19) pandemic across the world has focused attention on the relationship of commonly occurring comorbidities such as diabetes on the course and outcomes of this infection. While diabetes does not seem to be associated with an increased risk of COVID19 infection per se, it has been clearly demonstrated that the presence of hyperglycemia of any degree predisposes to worse outcomes, such as more severe respiratory involvement, ICU admissions, need for mechanical ventilation and mortality. Further, COVID19 infection has been associated with the development of new-onset hyperglycemia and diabetes, and worsening of glycemic control in pre-existing diabetes, due to direct pancreatic damage by the virus, body’s stress response to infection (including cytokine storm) and use of diabetogenic drugs such as corticosteroids in the treatment of severe COVID19. In addition, public health measures taken to flatten the pandemic curve (such as lockdowns) can also adversely impact persons with diabetes by limiting their access to clinical care, healthy diet, and opportunities to exercise. Most antidiabetic medications can continue to be used in patients with mild COVID19 but switching over to insulin is preferred in severe disease.

scholarly journals Diabetes and COVID19: a bidirectional relationship

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ranjit Unnikrishnan ◽  
Anoop Misra
Keyword(s):  
Clinical Care ◽  
Severe Disease ◽  
Respiratory Involvement ◽  
Pancreatic Damage ◽  
Increased Risk ◽  
Bidirectional Relationship ◽  
Rapid Spread ◽  
Relationship Of ◽  
The Relationship ◽  
New Onset

AbstractThe advent and rapid spread of the coronavirus disease-2019 (COVID19) pandemic across the world has focused attention on the relationship of commonly occurring comorbidities such as diabetes on the course and outcomes of this infection. While diabetes does not seem to be associated with an increased risk of COVID19 infection per se, it has been clearly demonstrated that the presence of hyperglycemia of any degree predisposes to worse outcomes, such as more severe respiratory involvement, ICU admissions, need for mechanical ventilation and mortality. Further, COVID19 infection has been associated with the development of new-onset hyperglycemia and diabetes, and worsening of glycemic control in pre-existing diabetes, due to direct pancreatic damage by the virus, body’s stress response to infection (including cytokine storm) and use of diabetogenic drugs such as corticosteroids in the treatment of severe COVID19. In addition, public health measures taken to flatten the pandemic curve (such as lockdowns) can also adversely impact persons with diabetes by limiting their access to clinical care, healthy diet, and opportunities to exercise. Most antidiabetic medications can continue to be used in patients with mild COVID19 but switching over to insulin is preferred in severe disease.

Abstract P208: Functional Status, Rehospitalization, and Mortality Outcomes Among Acute Myocardial Infarction Patients with Prior and New-Onset Atrial Fibrillation

2011 ◽  
Vol 4 (suppl_2) ◽  
Author(s):  
Kyle P Hornsby ◽  
Kensey Gosch ◽  
Amy L Miller ◽  
Jonathan P Piccini ◽  
Renato D Lopes ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Atrial Fibrillation ◽  
Acute Myocardial Infarction ◽  
Health Status ◽  
Functional Status ◽  
Physical Function ◽  
Adverse Outcomes ◽  
Increased Risk ◽  
New Onset

Background: Little data are available regarding differences in prognosis and health status between new-onset and prior atrial fibrillation (AF) among patients with acute myocardial infarction (AMI). Methods: The TRIUMPH study enrolled 4340 AMI patients who received longitudinal follow-up including SF-12 health status assessments through 1 year post-AMI. We compared 1-year mortality, rehospitalization, and functional status according to AF type (none, prior, new) after adjusting for differences in baseline characteristics. Results: A total of 212 AMI patients (4.9%) had prior AF and 254 (5.9%) had new-onset AF. Compared with no AF, new AF was associated with older age, male sex, first MI, worse baseline physical function, home atrioventricular nodal blocker use, and worse ventricular function (c-index 0.77). Rates of 1-year mortality were 6.2%, 14.5%, and 13.0%, and 1-year rehospitalization rates were 29.1%, 44.2%, and 36.8% for no, prior, and new AF, respectively. After multivariable adjustment, neither prior nor new AF was associated with increased 1-year mortality, and only prior AF was associated with increased risk of 1-year rehospitalization (Figure). After adjusting for baseline SF-12 physical function scores, patients with prior AF had lower 1-year scores than those with no AF (40.6 vs. 43.7, p <0.003), whereas patients with new AF had similar scores (42.9 vs. 43.7, p=0.36). Conclusion: New-onset AF during AMI is associated with a number of comorbidities but, unlike prior AF, is not associated with adverse outcomes. These results raise the question of whether AF is itself a cause of or simply a marker of comorbidities leading to downstream adverse outcomes after AMI.

scholarly journals Hypertension Burden and the Risk of New-Onset Atrial Fibrillation

Hypertension ◽  
2021 ◽  
Vol 77 (3) ◽  
pp. 919-928
Author(s):  
So-Ryoung Lee ◽  
Chan Soon Park ◽  
Eue-Keun Choi ◽  
Hyo-Jeong Ahn ◽  
Kyung-Do Han ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Total Study Population ◽  
Increased Risk ◽  
Burden Scale ◽  
History Of ◽  
Study Population ◽  
Korean National Health Insurance ◽  
Stage 1 ◽  
The Relationship

The association between the cumulative hypertension burden and the development of atrial fibrillation (AF) is unclear. We aimed to investigate the relationship between hypertension burden and the development of incident AF. Using the Korean National Health Insurance Service database, we identified 3 726 172 subjects who underwent 4 consecutive annual health checkups between 2009 and 2013, with no history of AF. During the median follow-up of 5.2 years, AF was newly diagnosed in 22 012 patients (0.59% of the total study population; 1.168 per 1000 person-years). Using the blood pressure (BP) values at each health checkup, we determined the burden of hypertension (systolic BP ≥130 mm Hg or diastolic BP ≥80 mm Hg), stratified as 0 to 4 per the hypertension criteria. The subjects were grouped according to hypertension burden scale 1 to 4: 20% (n=742 806), 19% (n=704 623), 19% (n=713 258), 21% (n=766 204), and 21% (n=799 281). Compared with normal people, subjects with hypertension burdens of 1, 2, 3, and 4 were associated with an 8%, 18%, 26%, and 27% increased risk of incident AF, respectively. On semiquantitative analyses with further stratification of stage 1 (systolic BP of 130–139 mm Hg or diastolic BP of 80–89 mm Hg) and stage 2 (systolic BP ≥140 mm Hg or diastolic BP ≥90 mm Hg) hypertension, the risk of AF increased with the hypertension burden by up to 71%. In this study, both a sustained exposure and the degree of increased BP were associated with an increased risk of incident AF. Tailored BP management should be emphasized to reduce the risk of AF.

Abstract 5108: Microalbuminuria is Associated with Progression of Coronary Atherosclerosis in the Multi-Ethnic Study of Atherosclerosis (MESA)

Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Andrew P DeFilippis ◽  
Holly J Kramer ◽  
Ronit Katz ◽  
Nathan Wong ◽  
Alain Bertoni ◽  
...  
Keyword(s):  
Lipid Lowering ◽  
Albumin Creatinine Ratio ◽  
Ethnic Study ◽  
Median Increase ◽  
Increased Risk ◽  
History Of ◽  
Relationship Of ◽  
The Relationship ◽  
Progression Of Atherosclerosis

Background: Microalbuminuria (MA) is associated with an increased risk of cardiovascular disease (CVD) but the mechanism by which microalbuminuria imparts this increased risk is not known. In this study we assessed the relationship between MA and the development and progression of atherosclerosis by measuring the incidence of new CAC and the progression of existing CAC in individuals free of clinical CVD. Methods : The Multi-Ethnic Study of Atherosclerosis (MESA) is a prospective cohort study of 6,814 participants free of clinical CVD at entry who underwent assessment of coronary artery calcification (CAC) by computerized tomography at baseline. Overall, 6,775 individuals had data available on urinary albumin creatinine ratio (UACR); 1,109 individuals were excluded for missing data or macroalbuminuria (UACR≥300 mg/g). Incident CAC was defined as detectable CAC at follow-up among those with CAC=0 at baseline, and absolute CAC score change among those with CAC>0 at baseline. Relative risk (RR) regression adjusted for covariates; and multivariable adjusted median regression was employed to assess the independent relationship of MA with CAC incidence and progression. Results : Of the 5,666 subjects (mean age 62±10 years, 48% males), baseline MA was seen in 424 (7%) participants, who were more likely to have CAC compared to those with normal UACR (62% vs. 48%, p<0.0001). During a mean follow-up of 2.4±0.8 years, those with MA were more likely to develop CAC (28% vs. 15%, p<0.0001) and they had a higher absolute median increase in CAC (47 vs. 29 Agatston Units, p<0.0001). After adjustment for age, gender, ethnicity, site, follow-up duration, diabetes, hypertension, smoking, family history of heart attack, total cholesterol, lipid lowering medications and body mass index; MA was associated with incident CAC (RR 1.65; 95%CI 1.41–2.48) among those with CAC=0 at baseline. Among those with CAC>0 at baseline, MA was associated with a median increase in CAC of 7.93 (95%CI 0.38 –15.47) Agatston Units in multivariable adjusted analyses (variables noted above). Conclusion : MA is independently associated with development of incident CAC and progression of CAC in an asymptomatic multi-ethnic population, and may in part explain its associated increased risk of CVD.

scholarly journals Examining the relationship between sepsis and oropharyngeal dysphagia in hospitalised elderly patients: a retrospective cohort study

2018 ◽  
Vol 9 (4) ◽  
pp. 256-261 ◽  
Author(s):  
Ayodele Sasegbon ◽  
Laura O’Shea ◽  
Shaheen Hamdy
Keyword(s):  
Risk Factors ◽  
Elderly Patients ◽  
Elderly Person ◽  
Oropharyngeal Dysphagia ◽  
The Elderly ◽  
Common Source ◽  
Increased Risk ◽  
The Mean ◽  
The Relationship ◽  
New Onset

IntroductionElderly people are recognised to be at increased risk of oropharyngeal dysphagia (OPD), the causes of which are multifactorial. Our aim was to identify if sepsis is associated with OPD in the elderly during hospitalisation in the absence of known other risk factors for OPD.MethodsA hospital electronic database was searched for elderly patients (≥65 years) referred for assessment for suspected dysphagia between March 2013 and 2014. Exclusion criteria were age <65 years, pre-existing OPD or acute OPD secondary to acute intracranial event, space-occupying lesion or trauma. Data were collected on factors including age, sex, comorbidities, existing OPD, sepsis, microbiology, recovery of OPD and medication. Sepsis was defined as evidence of a systemic inflammatory response syndrome with a clinical suspicion of infection.ResultsA total of 301 of 1761 screened patients referred for dysphagia assessment met the inclusion criteria. The prevalence of sepsis and subsequent OPD was 16% (51/301). The mean age was 83 years (median 81 years). The most common comorbidity was dementia (31%). The majority (84%) failed to recover swallowing during their hospital stay, 12% had complications of aspiration and 35% died. The most common source of sepsis was from the chest (55%). Other factors contributing to the risk for dysphagia included delirium (22%) and neuroactive medication (41%). However, 10% of patients had sepsis and subsequent OPD without other identified risk factors.ConclusionThe prevalence of sepsis and subsequent dysphagia is significant and should be taken into account in any elderly person in hospital with new-onset OPD without other predisposing risk factors.

scholarly journals The Association of New-Onset Atrial Fibrillation and Risk of Cancer: A Systematic Review and Meta-Analysis

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Mengxia Zhang ◽  
Lin-ling Li ◽  
Qian-qian Zhao ◽  
Xiao-dong Peng ◽  
Kui Wu ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Meta Analysis ◽  
Large Sample Size ◽  
Systematic Analysis ◽  
Incident Cancer ◽  
Increased Risk ◽  
Risk Of Cancer ◽  
The Relationship ◽  
Onset Atrial Fibrillation ◽  
New Onset

Background. There are distinct results for the relationship between new-onset atrial fibrillation (NOAF) and subsequent incident cancer. To date, no systematic analysis has been conducted on this issue. This study aims to explore the relationship between NOAF and the risk of developing cancer through a meta-analysis with a large sample size. Methods. Electronic databases, such as PubMed and EMBASE, were searched for published relevant studies on NOAF patients diagnosed with cancer after and during follow-ups, including reported records of baseline information and the statistical result of morbidity. Two investigators independently reviewed the articles and extracted the data using uniform standards and definitions. The meta-analysis was conducted using the Cochrane Program Review Manager. Results. This meta-analysis consisted of five cohort studies and one case-control study, which comprised 533,514 participants. The pooled relative risk (RR) for incident cancer was 1.24 (95% CI: 1.10–1.39, P=0.0003). The temporal trend analysis demonstrated that an increased risk of cancer was observed during the initial 90 days (RR: 3.44, 95% CI: 2.29–5.57, P<0.00001), but not after that. Lung cancer (RR: 1.51, 95% CI: 1.47–1.55, P<0.00001) was associated with NOAF, but not colorectal cancer and breast cancer. Conclusion. This meta-analysis provides evidence that NOAF is associated with increased risk of cancer. The risk of incident cancer particularly increases within 90 days after NOAF diagnosis, but not after that.

scholarly journals Evaluation of anticoagulation status for atrial fibrillation on early ischaemic stroke outcomes: a registry-based, prospective cohort study of acute stroke care in Surrey, UK

BMJ Open ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. e019122 ◽  
Author(s):  
Thang S Han ◽  
Christopher H Fry ◽  
David Fluck ◽  
Brendan Affley ◽  
Giosue Gulli ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Cohort Study ◽  
Ischaemic Stroke ◽  
Scale Score ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Severe Stroke ◽  
Increased Risk ◽  
Relationship Of ◽  
The Relationship

ObjectiveThe relationship of anticoagulation therapies with stroke severity and outcomes have been well documented in the literature. However, none of the previous research has reported the relationship of atrial fibrillation (AF)/anticoagulation therapies with urinary tract infection (UTI), pneumonia and length of stay in hyperacute stroke units (HASUs). The present study aimed to evaluate AF and anticoagulation status in relation to early outcomes in 1387 men (median age=75 years, IQR=65–83) and 1371 women (median age=83 years, IQR=74–89) admitted with acute ischaemic stroke to HASUs in Surrey between 2014 and 2016.MethodsWe conducted this registry-based, prospective cohort study using data from the Sentinel Stroke National Audit Programme. Association between AF anticoagulation status with severe stroke on arrival (National Institutes of Health Stroke Scale score ≥16), prolonged HASU stay (>3 weeks), UTI and pneumonia within 7 days of admission, severe disability on discharge (modified Rankin Scale score=4 and 5) and inpatient mortality was assessed by logistic regression, adjusted for age, sex, hypertension, congestive heart failure, diabetes and previous stroke.ResultsCompared with patients with stroke who are free from AF, those with AF without anticoagulation had an increased adjusted risk of having more severe stroke: 5.8% versus 14.0%, OR=2.4 (95% CI 1.6 to 3.6, P<0.001), prolonged HASU stay: 21.5% versus 32.0%, OR=1.4 (1.0–2.0, P=0.027), pneumonia: 8.2% versus 19.1%, OR=2.1 (1.4–2.9, P<0.001), more severe disability: 24.2% versus 40.4%, OR=1.6 (1.2–2.1, P=0.004) and mortality: 9.3% versus 21.7%, OR=1.9 (1.4–2.8, P<0.001), and AF patients with anticoagulation also had greater risk for having UTI: 8.6% versus 12.3%, OR=1.9 (1.2–3.0, P=0.004), pneumonia: 8.2% versus 11.5%, OR=1.6 (1.1–2.4, P=0.025) and mortality: 9.7% versus 21.7%, OR=1.9 (1.4–2.8, P<0.001). The median HASU stay for stroke patients with AF without anticoagulation was 10.6 days (IQR=2.8–26.4) compared with 5.8 days (IQR=2.3–17.5) for those free from AF (P<0.001).ConclusionsPatients with AF, particularly those without anticoagulation, are at increased risk of severe stroke, associated with prolonged HASU stay and increased risk of early infection, disability and mortality.

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