433 results found
Lu M, Zhu L, Prasad SK, et al., 2023, Magnetic resonance imaging mimicking pathology detects myocardial fibrosis: a door to hope for improving the whole course management., Sci Bull (Beijing), Vol: 68, Pages: 864-867
Jones RE, Zaidi HA, Hammersley DJ, et al., 2023, Comprehensive phenotypic characterization of late gadolinium enhancement predicts sudden cardiac death in coronary artery disease, JACC: Cardiovascular Imaging, Vol: 16, Pages: 628-638, ISSN: 1936-878X
BackgroundLate gadolinium enhancement (LGE) cardiac magnetic resonance (CMR) offers the potential to noninvasively characterize the phenotypic substrate for sudden cardiac death (SCD).ObjectivesThe authors assessed the utility of infarct characterization by CMR, including scar microstructure analysis, to predict SCD in patients with coronary artery disease (CAD).MethodsPatients with stable CAD were prospectively recruited into a CMR registry. LGE quantification of core infarction and the peri-infarct zone (PIZ) was performed alongside computational image analysis to extract morphologic and texture scar microstructure features. The primary outcome was SCD or aborted SCD.ResultsOf 437 patients (mean age: 64 years; mean left ventricular ejection fraction [LVEF]: 47%) followed for a median of 6.3 years, 49 patients (11.2%) experienced the primary outcome. On multivariable analysis, PIZ mass and core infarct mass were independently associated with the primary outcome (per gram: HR: 1.07 [95% CI: 1.02-1.12]; P = 0.002 and HR: 1.03 [95% CI: 1.01-1.05]; P = 0.01, respectively), and the addition of both parameters improved discrimination of the model (Harrell’s C-statistic: 0.64-0.79). PIZ mass, however, did not provide incremental prognostic value over core infarct mass based on Harrell’s C-statistic or risk reclassification analysis. Severely reduced LVEF did not predict the primary endpoint after adjustment for scar mass. On scar microstructure analysis, the number of LGE islands in addition to scar transmurality, radiality, interface area, and entropy were all associated with the primary outcome after adjustment for severely reduced LVEF and New York Heart Association functional class of >1. No scar microstructure feature remained associated with the primary endpoint when PIZ mass and core infarct mass were added to the regression models.ConclusionsComprehensive LGE characterization independently predicted SCD risk beyond conventional predictors used in im
Zaidi HA, Jones RE, Hammersley DJ, et al., 2023, Machine learning analysis of complex late gadolinium enhancement patterns to improve risk prediction of major arrhythmic events, FRONTIERS IN CARDIOVASCULAR MEDICINE, Vol: 10, ISSN: 2297-055X
Tadros R, Zheng SL, Grace C, et al., 2023, Large scale genome-wide association analyses identify novel genetic loci and mechanisms in hypertrophic cardiomyopathy., medRxiv
Hypertrophic cardiomyopathy (HCM) is an important cause of morbidity and mortality with both monogenic and polygenic components. We here report results from the largest HCM genome-wide association study (GWAS) and multi-trait analysis (MTAG) including 5,900 HCM cases, 68,359 controls, and 36,083 UK Biobank (UKB) participants with cardiac magnetic resonance (CMR) imaging. We identified a total of 70 loci (50 novel) associated with HCM, and 62 loci (32 novel) as sociated with relevant left ventricular (LV) structural or functional traits. Amongst the common variant HCM loci, we identify a novel HCM disease gene, SVIL , which encodes the actin-binding protein supervillin, showing that rare truncating SVIL variants cause HCM. Mendelian randomization analyses support a causal role of increased LV contractility in both obstructive and non-obstructive forms of HCM, suggesting common disease mechanisms and anticipating shared response to therapy. Taken together, the findings significantly increase our understanding of the genetic basis and molecular mechanisms of HCM, with potential implications for disease management.
Artico J, Shiwani H, Moon JC, et al., 2023, Myocardial Involvement After Hospitalization for COVID-19 Complicated by Troponin Elevation: A Prospective, Multicenter, Observational Study, CIRCULATION, Vol: 147, Pages: 364-374, ISSN: 0009-7322
- Author Web Link
- Citations: 2
Hammersley DJ, Jones RE, Mach L, et al., 2022, Effect of Diabetes Mellitus on Clinical Phenotype and Cardiovascular Mortality in Non-Ischaemic Dilated Cardiomyopathy, Scientific Sessions of the American-Heart-Association / Resuscitation Science Symposium, Publisher: LIPPINCOTT WILLIAMS & WILKINS, ISSN: 0009-7322
Heidecker B, Dagan N, Balicer R, et al., 2022, Myocarditis following COVID-19 vaccine: incidence, presentation, diagnosis, pathophysiology, therapy, and outcomes put into perspective. A clinical consensus document supported by the Heart Failure Association of the European Society of Cardiology (ESC) and the ESC Working Group on Myocardial and Pericardial Diseases., Eur J Heart Fail, Vol: 24, Pages: 2000-2018
Over 10 million doses of COVID-19 vaccines based on RNA technology, viral vectors, recombinant protein, and inactivated virus have been administered worldwide. Although generally very safe, post-vaccine myocarditis can result from adaptive humoral and cellular, cardiac-specific inflammation within days and weeks of vaccination. Rates of vaccine-associated myocarditis vary by age and sex with the highest rates in males between 12 and 39 years. The clinical course is generally mild with rare cases of left ventricular dysfunction, heart failure and arrhythmias. Mild cases are likely underdiagnosed as cardiac magnetic resonance imaging (CMR) is not commonly performed even in suspected cases and not at all in asymptomatic and mildly symptomatic patients. Hospitalization of symptomatic patients with electrocardiographic changes and increased plasma troponin levels is considered necessary in the acute phase to monitor for arrhythmias and potential decline in left ventricular function. In addition to evaluation for symptoms, electrocardiographic changes and elevated troponin levels, CMR is the best non-invasive diagnostic tool with endomyocardial biopsy being restricted to severe cases with heart failure and/or arrhythmias. The management beyond guideline-directed treatment of heart failure and arrhythmias includes non-specific measures to control pain. Anti-inflammatory drugs such as non-steroidal anti-inflammatory drugs, and corticosteroids have been used in more severe cases, with only anecdotal evidence for their effectiveness. In all age groups studied, the overall risks of SARS-CoV-2 infection-related hospitalization and death are hugely greater than the risks from post-vaccine myocarditis. This consensus statement serves as a practical resource for physicians in their clinical practice, to understand, diagnose, and manage affected patients. Furthermore, it is intended to stimulate research in this area.
Amin R, Morris-Rosendahl D, Edwards M, et al., 2022, The addition of genetic testing and cardiovascular magnetic resonance to routine clinical data for stratification of aetiology in dilated cardiomyopathy, Frontiers in Cardiovascular Medicine, Vol: 9, ISSN: 2297-055X
Background: Guidelines recommend genetic testing and cardiovascular magnetic resonance (CMR) for the investigation of dilated cardiomyopathy (DCM). However, the incremental value is unclear. We assessed the impact of these investigations in determining etiology.Methods: Sixty consecutive patients referred with DCM and recruited to our hospital biobank were selected. Six independent experts determined the etiology of each phenotype in a step-wise manner based on (1) routine clinical data, (2) clinical and genetic data and (3) clinical, genetic and CMR data. They indicated their confidence (1-3) in the classification and any changes to management at each step.Results: Six physicians adjudicated 60 cases. The addition of genetics and CMR resulted in 57 (15.8%) and 26 (7.2%) changes in the classification of etiology, including an increased number of genetic diagnoses and a reduction in idiopathic diagnoses. Diagnostic confidence improved at each step (p < 0.0005). The number of diagnoses made with low confidence reduced from 105 (29.2%) with routine clinical data to 71 (19.7%) following the addition of genetics and 37 (10.3%) with the addition of CMR. The addition of genetics and CMR led to 101 (28.1%) and 112 (31.1%) proposed changes to management, respectively. Interobserver variability showed moderate agreement with clinical data (κ = 0.44) which improved following the addition of genetics (κ = 0.65) and CMR (κ = 0.68).Conclusion: We demonstrate that genetics and CMR, frequently changed the classification of etiology in DCM, improved confidence and interobserver variability in determining the diagnosis and had an impact on proposed management.
Lota A, Hazebroek M, Theotokis P, et al., 2022, Genetic architecture of acute myocarditis and the overlap with inherited cardiomyopathy, Circulation, Vol: 146, Pages: 1123-1134, ISSN: 0009-7322
Background: Acute myocarditis is an inflammatory condition that may herald the onset of dilated (DCM) or arrhythmogenic cardiomyopathy (ACM). We investigated the frequency and clinical consequences of DCM and ACM genetic variants in a population-based cohort of patients with acute myocarditis. Methods: Population-based cohort of 336 consecutive patients with acute myocarditis enrolled in London and Maastricht. All participants underwent targeted DNA-sequencing for well-characterised cardiomyopathy-associated genes with comparison to healthy controls (n=1053) sequenced on the same platform. Case ascertainment in England was assessed against national hospital admission data. The primary outcome was all-cause mortality. Results: Variants that would be considered pathogenic if found in a patient with DCM or ACM were identified in 8% of myocarditis cases compared to <1% of healthy controls (p=0.0097). In the London cohort (n=230; median age 33years; 84% men), patients were representative of national myocarditis admissions (median age 32years; 71% men; 66% case ascertainment), and there was enrichment of rare truncating variants (tv) in ACM-associated genes (3.1% cases vs 0.4% controls; odds ratio 8.2; p=0.001). This was driven predominantly by desmoplakin (DSP)-tv in patients with normal LV ejection fraction and ventricular arrhythmia. In Maastricht (n=106; median age 54years; 61% men), there was enrichment of rare truncating variants in DCM-associated genes, particularly TTN-tv found in 7% (all with LVEF<50%) compared to 1% in controls (OR 3.6; p=0.0116). Across both cohorts over a median of 5.0 years (IQR 3.9-7.8), all-cause mortality was 5.4%. Two thirds of deaths were cardiovascular, due to worsening heart failure (92%) or sudden cardiac death (8%). The 5-year mortality risk was 3.3% in genotype negative patients versus 11.1% for genotype positive patients (Padjusted=0.08). Conclusions: We identified DCM- or ACM-associated genetic variants in 8% of patients wit
Elming MB, Boas R, Hammer-Hansen S, et al., 2022, Myocardial fibrosis and ventricular ectopy in patients with non-ischemic systolic heart failure: results from the DANISH trial, INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING, Vol: 38, Pages: 2437-2445, ISSN: 1569-5794
Hatipoglu S, Mohiaddin RH, Gatehouse P, et al., 2022, Performance of artificial intelligence for biventricular cardiovascular magnetic resonance volumetric analysis in the clinical setting, INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING, Vol: 38, Pages: 2413-2424, ISSN: 1569-5794
- Author Web Link
- Citations: 1
Anthony C, Imran M, Pouliopoulos J, et al., 2022, Cardiovascular Magnetic Resonance for Rejection Surveillance After Cardiac Transplantation, CIRCULATION, Vol: 145, Pages: 1811-1824, ISSN: 0009-7322
- Author Web Link
- Citations: 5
Tayal U, Verdonschot JAJ, Hazebroek MR, et al., 2022, Precision phenotyping of dilated cardiomyopathy using multidimensional data., Journal of the American College of Cardiology, Vol: 79, Pages: 2219-2232, ISSN: 0735-1097
BACKGROUND: Dilated cardiomyopathy (DCM) is a final common manifestation of heterogenous etiologies. Adverse outcomes highlight the need for disease stratification beyond ejection fraction. OBJECTIVES: The purpose of this study was to identify novel, reproducible subphenotypes of DCM using multiparametric data for improved patient stratification. METHODS: Longitudinal, observational UK-derivation (n = 426; median age 54 years; 67% men) and Dutch-validation (n = 239; median age 56 years; 64% men) cohorts of DCM patients (enrolled 2009-2016) with clinical, genetic, cardiovascular magnetic resonance, and proteomic assessments. Machine learning with profile regression identified novel disease subtypes. Penalized multinomial logistic regression was used for validation. Nested Cox models compared novel groupings to conventional risk measures. Primary composite outcome was cardiovascular death, heart failure, or arrhythmia events (median follow-up 4 years). RESULTS: In total, 3 novel DCM subtypes were identified: profibrotic metabolic, mild nonfibrotic, and biventricular impairment. Prognosis differed between subtypes in both the derivation (P < 0.0001) and validation cohorts. The novel profibrotic metabolic subtype had more diabetes, universal myocardial fibrosis, preserved right ventricular function, and elevated creatinine. For clinical application, 5 variables were sufficient for classification (left and right ventricular end-systolic volumes, left atrial volume, myocardial fibrosis, and creatinine). Adding the novel DCM subtype improved the C-statistic from 0.60 to 0.76. Interleukin-4 receptor-alpha was identified as a novel prognostic biomarker in derivation (HR: 3.6; 95% CI: 1.9-6.5; P = 0.00002) and validation cohorts (HR: 1.94; 95% CI: 1.3-2.8; P = 0.00005). CONCLUSIONS: Three reproducible, mechanistically distinct DCM subtypes were identified using widely available clinical and biological data, adding prognostic value to trad
Tayal U, 2022, Exposure to elevated nitrogen dioxide concentrations and cardiac remodelling in patients with dilated cardiomyopathy, Journal of Cardiac Failure, Vol: 28, Pages: 924-934, ISSN: 1071-9164
Rationale: Empirical evidence suggests a strong link between exposure to air pollution and heart failure incidence, hospitalisations and mortality, but the biological basis of this remains unclear. Objective: To determine the relationship between differential air pollution levels and changes in cardiac structure and function in patients with dilated cardiomyopathy. Methods and Results: We undertook a prospective longitudinal observational cohort study of patients in England with dilated cardiomyopathy (enrollment 2009-2015; n=716, 66% male, 85% Caucasian) and conducted cross sectional analysis at the time of study enrollment. Annual average air pollution exposure estimates for nitrogen dioxide (NO2) and particulate matter with diameter ≤ 2.5µm (PM2.5) at enrolment were assigned to each residential postcode (on average 12 households). The relationship between air pollution and cardiac morphology was assessed using linear regression modelling. Greater ambient exposure to NO2 was associated with higher indexed left ventricular mass (4.3 g/m2 increase per interquartile range (IQR) increase in NO2, 95% CI 1.9 to 7.0 g/m2) and lower left ventricular ejection fraction (-1.5% decrease per IQR increase in NO2, 95% CI -2.7 to -0.2%), independent of age, sex, socio-economic status and clinical covariates. The associations were robust to adjustment for smoking status and geographical clustering by postcode area. The effect of air pollution on left ventricular mass was greatest in women. These effects were specific to NO2 exposure. Conclusion: Exposure to air pollution is associated with raised left ventricular mass and lower left ventricular ejection fraction, with the strongest effect in women. Whilst epidemiological associations between air pollution and heart failure have been established and supported by pre-clinical studies, our findings provide novel empirical evidence of cardiac remodelling and exposure to air pollution with important clinical and public health
Tsampasian V, Grafton-Clarke C, Ramos AEG, et al., 2022, Management of asymptomatic severe aortic stenosis: a systematic review and meta-analysis, OPEN HEART, Vol: 9, ISSN: 2053-3624
- Author Web Link
- Citations: 2
Thornton GD, Musa TA, Rigolli M, et al., 2022, Association of Myocardial Fibrosis and Stroke Volume by Cardiovascular Magnetic Resonance in Patients With Severe Aortic Stenosis With Outcome After Valve Replacement The British Society of Cardiovascular Magnetic Resonance AS700 Study, JAMA CARDIOLOGY, Vol: 7, Pages: 513-520, ISSN: 2380-6583
- Author Web Link
- Citations: 1
Tayal U, gregson J, Buchan R, et al., 2022, Moderate excess alcohol consumption and adverse cardiac remodelling in dilated cardiomyopathy, Heart, Vol: 108, Pages: 619-625, ISSN: 1355-6037
Objective The effect of moderate excess alcohol consumption is widely debated and has not been well defined in dilated cardiomyopathy (DCM). There is need for a greater evidence base to help advise patients. We sought to evaluate the effect of moderate excess alcohol consumption on cardiovascular structure, function and outcomes in DCM. Methods Prospective longitudinal observational cohort study. Patients with DCM (n=604) were evaluated for a history of moderate excess alcohol consumption (UK government guidelines; >14 units/week for women, >21 units/week for men) at cohort enrollment, had cardiovascular magnetic resonance and were followed up for the composite endpoint of cardiovascular death, heart failure and arrhythmic events. Patients meeting criteria for alcoholic cardiomyopathy were not recruited. ResultsDCM patients with a history of moderate excess alcohol consumption (n=98, 16%) had lower biventricular function and increased chamber dilatation of the left ventricle, right ventricle and left atrium, as well as increased left ventricular hypertrophy compared to patients without moderate alcohol consumption. They were more likely to be male (alcohol excess group– n =92, 94% vs n =306, 61%, p=<0.001). After adjustment for biological sex, moderate excess alcohol was not associated with adverse cardiac structure. There was no difference in mid-wall myocardial fibrosis between groups. Prior moderate excess alcohol consumption did not affect prognosis (HR 1.29, 0.73 to 2.26, p=0.38) during median follow up of 3.9 years. ConclusionDilated cardiomyopathy patients with moderate excess alcohol consumption have adverse cardiac structure and function at presentation but this is largely due to biological sex. Alcohol may contribute to sex-specific phenotypic differences in DCM. These findings help to inform lifestyle discussions for patients with dilated cardiomyopathy.
Halliday B, Owen R, Gregson J, et al., 2022, Changes in clinical and imaging variables during withdrawal of heart failure therapy in recovered dilated cardiomyopathy, ESC Heart Failure, Vol: 9, ISSN: 2055-5822
Aims: To profile the changes in non-invasive clinical, biochemical and imaging markers during withdrawal of therapy in patients with recovered dilated cardiomyopathy, providing insights into the pathophysiology of relapse.Methods: Clinical, biochemical and imaging data from patients during phased withdrawal of therapy in the randomised or single-arm cross-over phases of TRED-HF were profiled. Clinical variables were measured at each study visit and imaging variables were measured at baseline, 16 weeks and 6 months. Results: Amongst the 49 patients (35% women, mean age 53.6 years [standard deviation 11.6]) who withdrew therapy, 20 relapsed. Increases in mean heart rate (7.6 beats per minute [95% CIs 4.5,10.7]), systolic blood pressure (6.6mmHg [95% CI 2.7,10.5]) and diastolic blood pressure (5.8mmHg [95% CI 3.1,8.5]) were observed within 4-8 weeks of starting to withdraw therapy. A rise in mean LV mass (5.1g/m2 [95%CI 2.8,7.3]) and LV end-diastolic volume (3.9ml/m2 [95% CI 1.1,6.7]) and a reduction in mean LV ejection fraction (-4.2 [95% CI -6.6, -1.8]) were seen by 16 weeks, the earliest imaging follow-up. Plasma NT-pro-BNP fell immediately after withdrawing beta-blockers and only tended to increase 6 months after beginning therapy withdrawal (mean change in log NT-pro-BNP at 6 months: 0.2, 95% CI -0.1,0.4). Conclusion: Changes in plasma NT-pro-BNP are a late feature of relapse, often months after a reduction in LV function. A rise in heart rate and blood pressure are observed soon after withdrawing therapy in recovered dilated cardiomyopathy, typically accompanied or closely followed by early changes in LV structure and function.
Leyva F, Zegard A, Okafor O, et al., 2022, Myocardial Fibrosis Predicts Ventricular Arrhythmias and Sudden Death After Cardiac Electronic Device Implantation, JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY, Vol: 79, Pages: 665-678, ISSN: 0735-1097
- Author Web Link
- Citations: 9
Hammersley D, Buchan R, Lota A, et al., 2022, Direct and indirect effect of the COVID-19 pandemic on patients with cardiomyopathy, Open Heart, Vol: 9, Pages: 1-9, ISSN: 2053-3624
Objectives: (i) To evaluate the prevalence and hospitalisation rate of COVID-19 infections amongst patients with dilated cardiomyopathy (DCM) and hypertrophic cardiomyopathy (HCM) in the Royal Brompton & Harefield Hospital Cardiovascular Research Centre (RBHH CRC) Biobank. (ii) To evaluate the indirect impact of the pandemic on patients with cardiomyopathy through the Heart Hive COVID-19 study. (iii) To assess the impact of the pandemic on national cardiomyopathy-related hospital admissions.Methods: (i) 1,236 patients (703 DCM, 533 HCM) in the RBHH CRC Biobank were assessed for COVID-19 infections and hospitalisations; ii) 207 subjects (131 cardiomyopathy, 76 without heart disease) in the Heart Hive COVID-19 study completed online surveys evaluating physical health, psychological wellbeing, and behavioural adaptations during the pandemic; (iii) 11,447 cardiomyopathy-related hospital admissions across NHS England were studied from NHS Digital Hospital Episode Statistics over 2019-2020. Results: A comparable proportion of patients with cardiomyopathy in the RBHH CRC Biobank had tested positive for COVID-19 compared with the UK population (1.1% vs 1.6%, p=0.14), but a higher proportion of those infected were hospitalised (53.8% vs 16.5%, p=0.002). In the Heart Hive COVID-19 study, more patients with cardiomyopathy felt their physical health had deteriorated due to the pandemic than subjects without heart disease (32.3% vs 13.2%, p=0.004) despite only 4.6% of the cardiomyopathy cohort reporting COVID-19 symptoms. A 17.9% year-on-year reduction in national cardiomyopathy-related hospital admissions was observed in 2020.Conclusion: Patients with cardiomyopathy had similar reported rates of testing positive for COVID-19 to the background population, but those with test-proven infection were hospitalised more frequently. Deterioration in physical health amongst patients could not be explained by COVID-19 symptoms, inferring a significant contribution of the indirect con
Jones RE, Karamasis G, Dungu JN, et al., 2022, Stress perfusion cardiovascular magnetic resonance and serial fractional flow reserve assessment of the left anterior descending artery in patients undergoing right coronary artery chronic total occlusion revascularization, CARDIOLOGY JOURNAL, Vol: 29, Pages: 80-87, ISSN: 1897-5593
Castiello T, Georgiopoulos G, Finocchiaro G, et al., 2022, COVID-19 and myocarditis: a systematic review and overview of current challenges., Heart Fail Rev, Vol: 27, Pages: 251-261
Myocardial inflammation in COVID-19 has been documented. Its pathogenesis is not fully elucidated, but the two main theories foresee a direct role of ACE2 receptor and a hyperimmune response, which may also lead to isolated presentation of COVID-19-mediated myocarditis. The frequency and prognostic impact of COVID-19-mediated myocarditis is unknown. This review aims to summarise current evidence on this topic. We performed a systematic review of MEDLINE and Cochrane Library (1/12/19-30/09/20). We also searched clinicaltrials.gov for unpublished studies testing therapies with potential implication for COVID-19-mediated cardiovascular complication. Eligible studies had laboratory confirmed COVID-19 and a clinical and/or histological diagnosis of myocarditis by ESC or WHO/ISFC criteria. Reports of 38 cases were included (26 male patients, 24 aged < 50 years). The first histologically proven case was a virus-negative lymphocytic myocarditis; however, biopsy evidence of myocarditis secondary to SARS-CoV-2 cardiotropism has been recently demonstrated. Histological data was found in 12 cases (8 EMB and 4 autopsies) and CMR was the main imaging modality to confirm a diagnosis of myocarditis (25 patients). There was a substantial variability in biventricular systolic function during the acute episode and in therapeutic regimen used. Five patients died in hospital. Cause-effect relationship between SARS-CoV-2 infection and myocarditis is difficult to demonstrate. However, current evidence demonstrates myocardial inflammation with or without direct cardiomyocyte damage, suggesting different pathophysiology mechanisms responsible of COVID-mediated myocarditis. Established clinical approaches should be pursued until future evidence support different actions. Large multicentre registries are advisable to elucidate further.
Balaban G, Halliday BP, Hammersley D, et al., 2021, Left ventricular shape predicts arrhythmic risk in fibrotic dilated cardiomyopathy, EUROPACE, Vol: 24, Pages: 1137-1147, ISSN: 1099-5129
- Author Web Link
- Citations: 3
Lota AS, Tsao A, Owen R, et al., 2021, Prognostic significance of non-ischaemic patterns of myocardial fibrosis in patients with normal left ventricular volumes and ejection fraction – the FINALIZE study, JACC: Cardiovascular Imaging, Vol: 14, Pages: 2353-2365, ISSN: 1876-7591
Background: Non-ischaemic patterns of late gadolinium enhancement (LGE) with normal left ventricular volumes and ejection fraction are increasingly detected on cardiovascular magnetic resonance (CMR) but their prognostic significance, and consequently management, is uncertain. Objectives: To investigate the prognostic significance of LGE in patients without coronary artery disease and with normal range LV volumes and ejection fraction. Methods: Patients with mid-wall/subepicardial LGE and normal LV volumes, wall thickness and ejection fraction on CMR were enrolled and compared to a control group without LGE.57 The primary outcome was actual or aborted sudden cardiac death (SCD). Results: Of 748 patients enrolled, 401 had LGE and 347 did not. Median age was 50 years (IQR 38-61), LV ejection fraction 66% (IQR 62-70) and 287 (38%) were women. Scan indications included chest pain (40%), palpitation (33%) and breathlessness (13%). Nopatient experienced SCD and only one LGE+ patient (0.13%) had an aborted SCD in the 11th follow-up year. Over a median of 4.3years, thirty patients (4.0%) died. All-cause mortality was similar for LGE+/- patients (3.7% vs 4.3%; p=0.71) and was associated with age (H 2.04 per 10-years; 95%CI 1.46-2.79; p<0.001). Twenty-one LGE+ and 4 LGE- patients had an unplanned CV hospitalisation (HR 7.22; 95%CI 4.26-21.17; p<0.0001). Conclusion: There was a low SCD risk during long-term follow-up in patients with LGE but otherwise normal LV volumes and ejection fraction. Mortality was driven by age and not LGE presence, location or extent, although the latter was associated with greater CV hospitalisation for suspected myocarditis and symptomatic ventricular tachycardia.
Tayal U, Owen R, Buchan R, et al., 2021, Biological Sex as a Modifier of the Natural History of Dilated Cardiomyopathy, Publisher: LIPPINCOTT WILLIAMS & WILKINS, ISSN: 0009-7322
Halliday BP, Owen R, Gregson J, et al., 2021, Longitudinal Changes in Clinical and Imaging Variables During Withdrawal of Heart Failure Therapy in Patients with Recovered Dilated Cardiomyopathy: An Analysis from TRED-HF, Publisher: LIPPINCOTT WILLIAMS & WILKINS, ISSN: 0009-7322
Lota AS, Meena D, Halliday B, et al., 2021, Impact of Covid-19 on Acute Myocarditis Hospital Admissions in the National Health Service of England, Uk (2019-2020), Scientific Sessions of the American-Heart-Association / Resuscitation Science Symposium, Publisher: LIPPINCOTT WILLIAMS & WILKINS, ISSN: 0009-7322
Vassiliou V, Pavlou M, Malley T, et al., 2021, A novel cardiovascular magnetic resonance risk score for predicting mortality following surgical aortic valve replacement, Scientific Reports, Vol: 11, ISSN: 2045-2322
The increasing prevalence of patients with aortic stenosis worldwide highlights a clinical need for improved and accurate prediction of clinical outcomes following surgery. We investigated patient demographic and cardiovascular magnetic resonance (CMR) characteristics to formulate a dedicated risk score estimating long-term survival following surgery. We recruited consecutive patients undergoing CMR with gadolinium administration prior to surgical aortic valve replacement from 2003 to 2016 in two UK centres. The outcome was overall mortality. A total of 250 patients were included (68 ± 12 years, male 185 (60%), with pre-operative mean aortic valve area 0.93 ± 0.32cm2, LVEF 62 ± 17%) and followed for 6.0 ± 3.3 years. Sixty-one deaths occurred, with 10-year mortality of 23.6%. Multivariable analysis showed that increasing age (HR 1.04, P = 0.005), use of antiplatelet therapy (HR 0.54, P = 0.027), presence of infarction or midwall late gadolinium enhancement (HR 1.52 and HR 2.14 respectively, combined P = 0.12), higher indexed left ventricular stroke volume (HR 0.98, P = 0.043) and higher left atrial ejection fraction (HR 0.98, P = 0.083) associated with mortality and developed a risk score with good discrimination. This is the first dedicated risk prediction score for patients with aortic stenosis undergoing surgical aortic valve replacement providing an individualised estimate for overall mortality. This model can help clinicians individualising medical and surgical care.
Jones RE, Zaidi HA, Hammersley DJ, et al., 2021, In-depth phenotypic characterisation of myocardial fibrosis by cardiovascular magnetic resonance predicts sudden cardiac death in coronary heart disease: a long-term prospective outcome study, Publisher: OXFORD UNIV PRESS, Pages: 625-625, ISSN: 0195-668X
Papageorgiou V, Jones K, Halliday B, et al., 2021, A qualitative exploration of participant and investigator perspectives from the TRED-HF trial, ESC Heart Failure, Vol: 8, Pages: 3760-3768, ISSN: 2055-5822
Aim We explored the experiences and motivations of participants and staff who took part in the TRED-HF trial (Therapy withdrawal in REcovered Dilated cardiomyopathy). MethodsWe conducted a qualitative study, using semi-structured interviews, with participants (n=12) and the research team (n=4) from the TRED-HF trial. Interviews were carried out in 2019 and were audio-recorded and transcribed. Data were managed using NVivo and analysed using framework analysis. A patient representative provided guidance on the interpretation of findings and presentation of themes to ensure these remained meaningful, and an accurate representation, to those living with dilated cardiomyopathy.ResultsThree key themes emerged from the data: (1) perception of health; (2) experiences and relationships with healthcare services and researchers; and (3) perception of risk. Study participants held differing perceptions of their health; some did not consider themselves to have a heart condition or disagreed with the medical term ‘heart failure’. Relationships between participants, research staff and clinical management teams influenced participants’ experiences and decision-making during the trial, including following clinical advice. There were differences in participants’ perceptions of risk and their decisions to take heart failure medication after the trial was completed. Although the original TRED-HF trial did not provide the results many had hoped for, a strong motivator for taking part was the opportunity to withdraw medication in a safely monitored environment which had been previously considered by some participants before. Investigators acknowledged that the insights gained from the study can now be used to support evidence-based conversations with patients.Conclusion For people whose dilated cardiomyopathy is in remission, decisions to continue, reduce or stop their medication are influenced by perceptions of personal health, perceive risk and the important o
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