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Zhuo X, Wang J, Shao L. Comparing the Clinical Outcomes Observed with Rivaroxaban Versus Warfarin for the Management of Obese Patients with Non-valvular Atrial Fibrillation: a Systematic Review and Meta-analysis. Cardiovasc Drugs Ther 2024; 38:79-89. [PMID: 35763193 PMCID: PMC10876499 DOI: 10.1007/s10557-022-07361-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/15/2022] [Indexed: 01/10/2023]
Abstract
BACKGROUND Atrial fibrillation (AF) is an irregular heart rhythm which is becoming more and more common in this new era. Obesity is a risk factor for cardiovascular events, and obese patients are more at risk for stroke. The Framingham Heart Study demonstrated an increase in the developmental risk of AF by 4% for every unit (kg/m2) increase in body mass index (BMI). An anticoagulant is often required for the management of such patients. In this analysis, we aimed to systematically compare the clinical outcomes which were associated with rivaroxaban versus warfarin for the treatment of obese patients with non-valvular AF. METHODS PubMed, EMBASE, Web of Science, http://www. CLINICALTRIALS gov , Google Scholar, and Cochrane Central were the searched databases. Clinical outcomes including stroke, systemic embolism, and major bleeding were the endpoints. In this study, dichotomous data were analyzed by the RevMan software version 5.4. Risk ratio (RR) with 95% confidence interval (CI) was used for result interpretation. RESULTS Ten studies consisting of a total number of 168,081 obese participants were included whereby 81,332 participants were treated with rivaroxaban and 86,749 participants were treated with warfarin. The risks of ischemic (RR: 0.79, 95% CI: 0.74-0.84; P = 0.00001) and hemorrhagic stroke (RR: 0.61, 95% CI: 0.48-0.76; P = 0.0001) as well as systemic embolism (RR: 0.73, 95% CI: 0.62-0.87; P = 0.0004) were significantly lower with rivaroxaban compared to warfarin for the management of these obese patients with non-valvular AF. Rivaroxaban was also associated with a significantly lower risk of major bleeding (RR: 0.75, 95% CI: 0.65-0.87; P = 0.0001). CONCLUSION Based on this analysis, rivaroxaban seemed to be a better option in comparison to warfarin, due to its association with significantly lower risks of stroke and bleeding outcomes in obese patients with non-valvular AF. However, this hypothesis should further be confirmed in larger clinical trials.
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Affiliation(s)
- Xiaojun Zhuo
- Department of Cardiovascular Medicine, The Fourth Hospital of Changsha, Changsha, 410000, Hunan, People's Republic of China
| | - Jian Wang
- Department of Cardiovascular Medicine, The Fourth Hospital of Changsha, Changsha, 410000, Hunan, People's Republic of China
| | - Lihui Shao
- Department of Cardiovascular Medicine, The Fourth Hospital of Changsha, Changsha, 410000, Hunan, People's Republic of China.
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Salah QM, Bhandari S, Chand A, Khan S, Tirmzi SHA, Sheikh M, Khreis K, Palleti SK. The Effectiveness and Safety of Direct Oral Anticoagulants in Obese Patients With Atrial Fibrillation: A Network Meta-Analysis. Cureus 2023; 15:e41619. [PMID: 37565103 PMCID: PMC10410482 DOI: 10.7759/cureus.41619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/09/2023] [Indexed: 08/12/2023] Open
Abstract
Atrial fibrillation (AF) is a cardiac condition characterized by an irregular heart rhythm, which is increasingly prevalent in the modern era. All international guidelines strongly advise the administration of anticoagulants to individuals with AF who are at high risk of stroke. These guidelines recommend the use of direct oral anticoagulants (DOACs) over warfarin because warfarin is significantly associated with increased rates of major bleeding, numerous interactions with food and drugs, and the necessity for frequent monitoring. The aim of this study is to compare the effectiveness and safety of direct oral anticoagulants (DOACs) in obese patients with atrial fibrillation. Two authors independently conducted a comprehensive literature search using electronic databases including PubMed, CINAHL, and EMBASE from inception to June 1, 2023. The efficacy outcome assessed in this meta-analysis included the composite of stroke and systemic embolism. For safety analysis, major bleeding events were compared among the study groups. Eleven studies fulfilled all the inclusion criteria and were included in the present meta-analysis enrolling 144,502 patients. In this study, DOACs demonstrate superior efficacy in preventing stroke/systemic embolism compared to warfarin. Among the DOACs, apixaban emerged as the most effective, followed by rivaroxaban, warfarin, and dabigatran. In terms of safety, apixaban was also found to be the most favorable treatment option, followed by rivaroxaban, dabigatran, and warfarin. In summary, our study concludes that apixaban exhibited greater effectiveness and safety when compared to other DOACs and warfarin in obese patients with AF.
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Affiliation(s)
- Qais M Salah
- Internal Medicine, Al-Quds University Faculty of Medicine, Jerusalem, PSE
| | | | - Ali Chand
- Medicine, Shaikh Khalifa Bin Zayed Medical and Dental College, Lahore, PAK
| | - Saif Khan
- Medicine, North Manchester Hospital, Manchester, GBR
| | | | - Majed Sheikh
- Cardiology, Royal Free London NHS Foundation Trust, London, GBR
| | | | - Sujith K Palleti
- Nephrology, Edward Hines Jr. Veterans Administration Hospital, Hines, USA
- Nephrology, Loyola University Medical Center, Maywood, USA
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Santos IS, Goulart AC, Olmos RD, Thomas GN, Lip GYH, Lotufo PA, Benseñor IM. Atrial fibrillation in low- and middle-income countries: a narrative review. Eur Heart J Suppl 2020; 22:O61-O77. [PMID: 33380945 PMCID: PMC7753884 DOI: 10.1093/eurheartj/suaa181] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Preventing premature non-communicable disease mortality necessitates a thorough review of one of the most important risk factors for stroke, which is atrial fibrillation (AF). The latter and AF-related stroke are still considered to be problems of high-income countries and are frequently overlooked in low- and middle-income countries (LMICs). In this narrative review, we provide an overview of studies that evaluated at least one of the following determinants of AF burden in LMICs: current epidemiology and trends, stroke prevention, health outcomes, and economic burden. Studies focusing on samples close to the general population (including community- and primary care-based samples) indicate sex-specific prevalence rates up to 7.4% in LMICs. Although AF prevalence is still higher in high-income countries than LMICs, the gap in AF burden between these two groups has been reducing in the past three decades. Oral anticoagulant (OAC) therapy for stroke prevention is underused in LMICs, and there are little data on OAC therapy in relation to stroke risk scores, such as CHA2DS2-VASc. Available data also points to higher morbidity and mortality for patient with AF in LMICs than their counterparts in high-income countries. Data on the consequent economic burden in LMICs is scarce, but it is reasonable to consider it will follow the same trend as that observed for health outcomes. Raising the visibility of AF as a public health problem in LMICs is necessary as a first step to providing adequate care for patients with this condition.
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Affiliation(s)
- Itamar S Santos
- Center for Clinical and Epidemiological Research, Hospital Universitário, Universidade de São Paulo, Av. Lineu Prestes 2565, Cidade Universitária, São Paulo 05508-000, Brazil.,Internal Medicine Deparment, School of Medicine, Universidade de São Paulo, São Paulo, Brazil
| | - Alessandra C Goulart
- Center for Clinical and Epidemiological Research, Hospital Universitário, Universidade de São Paulo, Av. Lineu Prestes 2565, Cidade Universitária, São Paulo 05508-000, Brazil.,Internal Medicine Deparment, School of Medicine, Universidade de São Paulo, São Paulo, Brazil
| | - Rodrigo D Olmos
- Center for Clinical and Epidemiological Research, Hospital Universitário, Universidade de São Paulo, Av. Lineu Prestes 2565, Cidade Universitária, São Paulo 05508-000, Brazil.,Internal Medicine Deparment, School of Medicine, Universidade de São Paulo, São Paulo, Brazil
| | - G Neil Thomas
- Institute for Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Gregory Y H Lip
- Institute for Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.,Liverpool Centre for Cardiovascular Science, Liverpool Heart & Chest Hospital, University of Liverpool, Liverpool, UK.,Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Paulo A Lotufo
- Center for Clinical and Epidemiological Research, Hospital Universitário, Universidade de São Paulo, Av. Lineu Prestes 2565, Cidade Universitária, São Paulo 05508-000, Brazil.,Internal Medicine Deparment, School of Medicine, Universidade de São Paulo, São Paulo, Brazil
| | - Isabela M Benseñor
- Center for Clinical and Epidemiological Research, Hospital Universitário, Universidade de São Paulo, Av. Lineu Prestes 2565, Cidade Universitária, São Paulo 05508-000, Brazil.,Internal Medicine Deparment, School of Medicine, Universidade de São Paulo, São Paulo, Brazil
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