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  • 1
    Online Resource
    Online Resource
    The association of ischaemic stroke in patients with heart failure without atrial flutter/fibrillation
    BMJ ; 2020
    In:  Heart Vol. 106, No. 8 ( 2020-04), p. 616-623
    Details
    In: Heart, BMJ, Vol. 106, No. 8 ( 2020-04), p. 616-623
    Abstract: This study evaluated the association between ischaemic stroke (IS) and heart failure (HF) in the absence of atrial fibrillation (AF) or atrial flutter (AFL) using a population-based nation-wide cohort database. Method Newly diagnosed patients with HF without previous stroke and acute myocardial infarction (AMI) were enrolled. Based on the propensity scores matching age, sex and all comorbidities, our studies comprised 12 179 patients with HF and 12 179 patients without HF. Cox proportion hazard regression models and competing-risk regression models were used to evaluate the risk of IS among patients with HF without AF or AFL. Results In the multivariable analysis, older age (adjusted HR (95% CI)=1.05 (1.04 to 1.05)), male sex (adjusted HR (95% CI)=1.36 (1.24 to 1.50)), diabetes (adjusted HR (95% CI)=2.22 (1.97 to 2.49)) and hypertension (adjusted HR (95% CI)=1.60 (1.41 to 1.82)) were markedly associated with IS in patients with HF. The HF group had a markedly higher risk of IS than did the non-HF group (subdistribution HR (SHR)=1.51, 95% CI: 1.37 to 1.66) and AMI (SHR=3.40, 95% CI: 2.71 to 4.28). Additionally, according to the Kaplan-Meier analysis, patients with HF were at a significantly higher risk of cumulative incidence of IS and AMI than did patients with non-HF (p value of log-rank test 〈 0.001). Conclusion This study indicated that HF is a strong independent risk factor for IS, even in the absence of AF or AFL. Clinical physicians should investigate IS through routine screening and careful monitoring of patients with HF.
    Type of Medium: Online Resource
    ISSN: 1355-6037 , 1468-201X
    URL: Article
    DOI: 10.1136/heartjnl-2019-315646
    Language: English
    Publisher: BMJ
    Publication Date: 2020
    detail.hit.zdb_id: 2378689-9
    detail.hit.zdb_id: 1475501-4
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  • 2
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    Online Resource
    Impact of leaflet thrombosis on valve haemodynamic status after transcatheter aortic valve replacement
    BMJ ; 2023
    In:  Heart
    Details
    In: Heart, BMJ
    Abstract: The effect of subclinical leaflet thrombosis, characterised by hypoattenuated leaflet thickening (HALT), on the valve haemodynamic function and durability of the bioprosthetic valve, is not yet determined. We determined the impact of HALT on valve haemodynamics after transcatheter aortic valve replacement (TAVR) and the predictors of haemodynamic structural valve deterioration (SVD). Methods The Anticoagulation vs Dual Antiplatelet Therapy for Prevention of Leaflet Thrombosis and Cerebral Embolization after Transcatheter Aortic Valve Replacement(ADAPT-TAVR) trial is a multicenter, randomised trial that compared edoxaban and dual antiplatelet therapy in patients who had undergone successful TAVR. The presence of HALT was evaluated by four-dimensional CT at 6 months and serial echocardiography performed at baseline, immediately post-TAVR and after 6 months. SVD was defined as at least one of the following: (1) mean transprosthetic gradient ≥20 mm Hg, (2) change in the mean gradient ≥10 mm Hg from baseline, or (3) new or increase in intraprosthetic aortic regurgitation of at least ≥1 grade, resulting in moderate or greater regurgitation. Results At 6 months, HALT was found in 30 of 211 (14.2%) patients. The presence of HALT did not significantly affect aortic valve mean gradients (with vs without HALT; 14.0±4.8 mm Hg vs 13.7±5.5 mm Hg; p=0.74) at 6 months. SVD was reported in 30 of 206 patients (14.6%) at 6-month follow-up echocardiography. Older age (OR: 1.138; 95% CI: 1.019 to 1.293; p=0.033), use of aortic valve size ≤23 mm (OR: 6.254; 95% CI: 2.230 to 20.569; p=0.001) and mean post-TAVR pressure gradient (OR: 1.233; 95% CI: 1.123 to 1.371; p 〈 0.001) were independent predictors of haemodynamic SVD; however, the presence of HALT was not identified as a predictor of SVD. Conclusions In patients who had undergone successful TAVR, aortic valve haemodynamic status was not influenced by the presence of HALT. Although HALT was not a predictor of haemodynamic SVD at 6 months, it warrants further longer-term follow-up to evaluate the effect on long-term valve durability. Trial registration number NCT03284827 ( https://www.clinicaltrials.gov ).
    Type of Medium: Online Resource
    ISSN: 1355-6037 , 1468-201X
    URL: Article
    DOI: 10.1136/heartjnl-2023-322946
    Language: English
    Publisher: BMJ
    Publication Date: 2023
    detail.hit.zdb_id: 2378689-9
    detail.hit.zdb_id: 1475501-4
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  • 3
    Online Resource
    Online Resource
    Androgen deprivation therapy and the risk of iron-deficiency anaemia among patients with prostate cancer: a population-based cohort study
    BMJ ; 2020
    In:  BMJ Open Vol. 10, No. 3 ( 2020-03), p. e034202-
    Details
    In: BMJ Open, BMJ, Vol. 10, No. 3 ( 2020-03), p. e034202-
    Abstract: The administration of androgen deprivation therapy (ADT) to patients with metastatic prostate cancer might be associated with some adverse effects such as anaemia; however, few studies have been performed in East Asian populations. This study aimed to investigate the association between ADT and iron-deficiency anaemia (IDA) among patients with prostate cancer in a population-based nationwide cohort. Design Cohort study. Setting Taiwan. Participants Data for the cohort study were retrieved from the Taiwan National Health Insurance Research Database. Propensity score matching was used to select 7262 patients with prostate cancer who received ADT as the study group and 3631 patients who did not receive ADT as the control group. Primary and secondary outcome measures This study individually tracked patients over a 3-year study period and identified those who were subsequently diagnosed with IDA following the index date. Results The incidence rates of IDA in the study and control groups were 1.66 (95% CI CI 1.45 to 1.86) and 1.01 per 100 person-years (95% CI 0.78 to 1.25), respectively. Furthermore, proportional Cox regression revealed an HR of 1.62 (95% CI 1.24 to 2.12) for IDA in the study group after adjusting for patients’ age, monthly income, geographic location, residential urbanisation level and incidence of hyperlipidaemia, diabetes, hypertension, coronary heart disease, inflammatory bowel disease, other cancers and gastrointestinal bleeding. Conclusion Compared with its non-use among patients with prostate cancer, ADT use was associated with a higher risk of IDA.
    Type of Medium: Online Resource
    ISSN: 2044-6055 , 2044-6055
    URL: Article
    DOI: 10.1136/bmjopen-2019-034202
    Language: English
    Publisher: BMJ
    Publication Date: 2020
    detail.hit.zdb_id: 2599832-8
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  • 4
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    Online Resource
    Rationale and design of the ADAPT-TAVR trial: a randomised comparison of edoxaban and dual antiplatelet therapy for prevention of leaflet thrombosis and cerebral embolisation after transcatheter aortic valve replacement
    BMJ ; 2021
    In:  BMJ Open Vol. 11, No. 1 ( 2021-01), p. e042587-
    Details
    In: BMJ Open, BMJ, Vol. 11, No. 1 ( 2021-01), p. e042587-
    Abstract: Optimal antithrombotic strategy following transcatheter aortic valve replacement (TAVR) is still unknown. We hypothesised that the direct factor Xa inhibitor edoxaban can potentially prevent subclinical leaflet thrombosis and cerebral embolisation compared with conventional dual antiplatelet therapy (DAPT) in patients undergoing TAVR. Methods and analysis The ADAPT-TAVR trial is an international, multicentre, randomised, open-label, superiority trial comparing edoxaban-based strategy and DAPT strategy in patients without an indication for oral anticoagulation who underwent successful TAVR. A total of 220 patients are randomised (1:1 ratio), 1–7 days after successful TAVR, to receive either edoxaban (60 mg daily or 30 mg daily if patients had dose-reduction criteria) or DAPT using aspirin (100 mg daily) plus clopidogrel (75 mg daily) for 6 months. The primary endpoint was an incidence of leaflet thrombosis on four-dimensional, volume-rendered cardiac CT imaging at 6 months post-TAVR. The key secondary endpoints were the number of new lesions and new lesion volume on brain diffusion-weighted MRI and the changes in neurological and neurocognitive function assessment between immediate post-TAVR and 6 months of study drug administration. Detailed clinical information on thromboembolic and bleeding events were also assessed. Ethics and dissemination Ethic approval has been obtained from the Ethics Committee/Institutional Review Board of Asan Medical Center (approval number: 2017–1317) and this trial is also approved by National Institute of Food and Drug Safety Evaluation of Republic of Korea (approval number: 31511). Results of this study will be disseminated in scientific publication in reputed journals. Trial registration number NCT03284827 .
    Type of Medium: Online Resource
    ISSN: 2044-6055 , 2044-6055
    URL: Article
    DOI: 10.1136/bmjopen-2020-042587
    Language: English
    Publisher: BMJ
    Publication Date: 2021
    detail.hit.zdb_id: 2599832-8
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