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Ahn HJ, An HY, Ryu G, Lim J, Sun C, Song H, Choi SY, Lee H, Maurer T, Nachun D, Kwon S, Lee SR, Lip GYH, Oh S, Jaiswal S, Koh Y, Choi EK. Clonal haematopoiesis of indeterminate potential and atrial fibrillation: an east Asian cohort study. Eur Heart J 2024; 45:778-790. [PMID: 38231881 DOI: 10.1093/eurheartj/ehad869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 11/12/2023] [Accepted: 12/19/2023] [Indexed: 01/19/2024] Open
Abstract
BACKGROUND AND AIMS Both clonal haematopoiesis of indeterminate potential (CHIP) and atrial fibrillation (AF) are age-related conditions. This study investigated the potential role of CHIP in the development and progression of AF. METHODS Deep-targeted sequencing of 24 CHIP mutations (a mean depth of coverage = 1000×) was performed in 1004 patients with AF and 3341 non-AF healthy subjects. Variant allele fraction ≥ 2.0% indicated the presence of CHIP mutations. The association between CHIP and AF was evaluated by the comparison of (i) the prevalence of CHIP mutations between AF and non-AF subjects and (ii) clinical characteristics discriminated by CHIP mutations within AF patients. Furthermore, the risk of clinical outcomes-the composite of heart failure, ischaemic stroke, or death-according to the presence of CHIP mutations in AF was investigated from the UK Biobank cohort. RESULTS The mean age was 67.6 ± 6.9 vs. 58.5 ± 6.5 years in AF (paroxysmal, 39.0%; persistent, 61.0%) and non-AF cohorts, respectively. CHIP mutations with a variant allele fraction of ≥2.0% were found in 237 (23.6%) AF patients (DNMT3A, 13.5%; TET2, 6.6%; and ASXL1, 1.5%) and were more prevalent than non-AF subjects [356 (10.7%); P < .001] across the age. After multivariable adjustment (age, sex, smoking, body mass index, diabetes, and hypertension), CHIP mutations were 1.4-fold higher in AF [adjusted odds ratio (OR) 1.38; 95% confidence interval 1.10-1.74, P < .01]. The ORs of CHIP mutations were the highest in the long-standing persistent AF (adjusted OR 1.50; 95% confidence interval 1.14-1.99, P = .004) followed by persistent (adjusted OR 1.44) and paroxysmal (adjusted OR 1.33) AF. In gene-specific analyses, TET2 somatic mutation presented the highest association with AF (adjusted OR 1.65; 95% confidence interval 1.05-2.60, P = .030). AF patients with CHIP mutations were older and had a higher prevalence of diabetes, a longer AF duration, a higher E/E', and a more severely enlarged left atrium than those without CHIP mutations (all P < .05). In UK Biobank analysis of 21 286 AF subjects (1297 with CHIP and 19 989 without CHIP), the CHIP mutation in AF is associated with a 1.32-fold higher risk of a composite clinical event (heart failure, ischaemic stroke, or death). CONCLUSIONS CHIP mutations, primarily DNMT3A or TET2, are more prevalent in patients with AF than non-AF subjects whilst their presence is associated with a more progressive nature of AF and unfavourable clinical outcomes.
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Affiliation(s)
- Hyo-Jeong Ahn
- Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Hong Yul An
- Genome Opinion Incorporation, Seoul 04799, Republic of Korea
| | - Gangpyo Ryu
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Cancer Research Institute, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Jiwoo Lim
- Genome Opinion Incorporation, Seoul 04799, Republic of Korea
| | - Choonghyun Sun
- Genome Opinion Incorporation, Seoul 04799, Republic of Korea
| | - Han Song
- Genome Opinion Incorporation, Seoul 04799, Republic of Korea
| | - Su-Yeon Choi
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Heesun Lee
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Department of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Taylor Maurer
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Daniel Nachun
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Soonil Kwon
- Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - So-Ryoung Lee
- Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Gregory Y H Lip
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University, Liverpool Chest and Heart Hospital, Liverpool, UK
- Danish Center for Health Services Research, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Seil Oh
- Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Siddhartha Jaiswal
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Youngil Koh
- Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Genome Opinion Incorporation, Seoul 04799, Republic of Korea
- Cancer Research Institute, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Biomedical Research Institute, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Eue-Keun Choi
- Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
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Alalwan MA, Al-Ohaid F, Alhajjaj HM, Al Hazeem A, AlJulaih GH, Al-Khedher R, Alshehri A, Jatoi NA. Stroke Prevention Therapy and Prevalence of Risk Factors Among Patients With Atrial Fibrillation at King Fahad University Hospital in Al Khobar: A Retrospective, Single-Center Study. Cureus 2021; 13:e12493. [PMID: 33425559 PMCID: PMC7785493 DOI: 10.7759/cureus.12493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2021] [Indexed: 11/28/2022] Open
Abstract
Background Atrial fibrillation is the most common cardiac arrhythmia in clinical practice. It represents a significant health impact as it is greatly associated with increased risk of mortality and morbidity, most importantly stroke and systemic thromboembolism. Aim This study aims to determine the risk factors of atrial fibrillation, to identify stroke and bleeding risk factors among patients with atrial fibrillation, to assess the trend of stroke prevention management and the influence of CHA2DS2-VASc and HAS-BLED scores on choosing the treatment. Methods This study was performed using all the medical records of 395 patients with Atrial fibrillation who were admitted between 2011-2019 at King Fahd University Hospital, Al-Khobar, Saudi Arabia. The review process included demographic data of the patients and the calculation of stroke and bleeding risk by CHA2DS2-VASc and HAS-BLED scores. Results The median age of the population was 72 years old. Hypertension was the most common risk factor for atrial fibrillation (78.2%), followed by diabetes mellitus (61.0%), dyslipidemia (60.0%), coronary artery disease (41.0%), myocardial infarction (18.7%), and congestive heart failure (29.4%). Regarding the management, (42.5%) of the patients were on a combination of both anticoagulants and antiplatelet therapy, while (33.2%) were on anticoagulant therapy only, (17.5%) were on antiplatelets only, and (5.8%) were not on medication. The increased use of anticoagulants and combined therapy was related to the percentage of a high-risk group of thromboembolic events reaching up to (34.5%) and (45.7%), respectively, which is statistically significant. Moreover, the prescription of warfarin declined in the last five years of our study, while the use of non-vitamin K antagonist oral anticoagulants increased. Conclusion Atrial fibrillation is more prevalent in females, hypertension was the most common risk factor for atrial fibrillation, followed by diabetes mellitus, and dyslipidemia. Most of the studied population was categorized as a high risk of stroke and bleeding according to CHA2DS2-VASc and HAS- BLED scores. The majority of the atrial fibrillation patient were taking anticoagulants and combined treatment as a stroke prevention therapy. Non-vitamin K antagonist oral anticoagulant prescription increased over warfarin in recent years.
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Affiliation(s)
- Maryam A Alalwan
- Internal Medicine, Imam Abdulrahman Bin Faisal University, Al Khobar, SAU
| | - Fatimah Al-Ohaid
- Internal Medicine, Imam Abdulrahman Bin Faisal University, Al Khobar, SAU
| | - Huda M Alhajjaj
- Internal Medicine, Imam Abdulrahman Bin Faisal University, Al Khobar, SAU
| | - Ahlam Al Hazeem
- Internal Medicine, Imam Abdulrahman Bin Faisal University, Al Khobar, SAU
| | - Ghadeer H AlJulaih
- Internal Medicine, Imam Abdulrahman Bin Faisal University, Al Khobar, SAU
| | - Rabab Al-Khedher
- Internal Medicine, Imam Abdulrahman Bin Faisal University, Al Khobar, SAU
| | - Abdullah Alshehri
- Internal Medicine, Imam Abdulrahman Bin Faisal University, King Fahad University Hospital, Al Khobar, SAU
| | - Noor-Ahmed Jatoi
- Internal Medicine, Imam Abdulrahman Bin Faisal University, King Fahad University Hospital, Al Khobar, SAU
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