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Alahdab F, Ahmed AI, Nayfeh M, Han Y, Abdelkarim O, Alfawara MS, Little SH, Reardon MJ, Faza NN, Goel SS, Alkhouli M, Zoghbi W, Al-Mallah MH. Myocardial Blood Flow Reserve, Microvascular Coronary Health, and Myocardial Remodeling in Patients With Aortic Stenosis. J Am Heart Assoc 2024; 13:e033447. [PMID: 38780160 DOI: 10.1161/jaha.123.033447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 04/18/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Coronary microvascular function and hemodynamics may play a role in coronary circulation and myocardial remodeling in patients with aortic stenosis (AS). We aimed to evaluate the relationship between myocardial blood flow and myocardial function in patients with AS, no AS, and aortic valve sclerosis. METHODS AND RESULTS We included consecutive patients who had resting transthoracic echocardiography and clinically indicated positron emission tomography myocardial perfusion imaging to capture their left ventricular ejection fraction, global longitudinal strain (GLS), and myocardial flow reserve (MFR). The primary outcome was major adverse cardiovascular event (all-cause mortality, myocardial infarction, or late revascularization). There were 2778 patients (208 with aortic sclerosis, 39 with prosthetic aortic valve, 2406 with no AS, and 54, 49, and 22 with mild, moderate, and severe AS, respectively). Increasing AS severity was associated with impaired MFR (P<0.001) and GLS (P<0.001), even when perfusion was normal. Statistically significant associations were noted between MFR and GLS, MFR and left ventricular ejection fraction, and MFR and left ventricular ejection fraction reserve. After a median follow-up of 349 (interquartile range, 116-662) days, 4 (7.4%), 5 (10.2%), and 6 (27.3%) patients experienced a major adverse cardiovascular event in the mild, moderate, and severe AS groups, respectively. In a matched-control analysis, patients with mild-to-moderate AS had higher rates of impaired MFR (52.9% versus 39.9%; P=0.048) and major adverse cardiovascular event (11.8% versus 3.0%; P=0.002). CONCLUSIONS Despite lack of ischemia, as severity of AS increased, MFR decreased and GLS worsened, reflecting worse coronary microvascular health and myocardial remodeling. Positron emission tomography-derived MFR showed a significant independent correlation with left ventricular ejection fraction and GLS. Patients with prosthetic aortic valve showed a high prevalence of impaired MFR.
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Affiliation(s)
- Fares Alahdab
- Houston Methodist DeBakey Heart and Vascular Center Houston TX
| | - Ahmed I Ahmed
- Houston Methodist DeBakey Heart and Vascular Center Houston TX
| | - Malek Nayfeh
- Houston Methodist DeBakey Heart and Vascular Center Houston TX
| | - Yushui Han
- Houston Methodist DeBakey Heart and Vascular Center Houston TX
| | - Ola Abdelkarim
- Department of Cardiology, Faculty of Medicine Alexandria University Alexandria Egypt
| | | | | | | | - Nadeen N Faza
- Houston Methodist DeBakey Heart and Vascular Center Houston TX
| | - Sachin S Goel
- Houston Methodist DeBakey Heart and Vascular Center Houston TX
| | | | - William Zoghbi
- Houston Methodist DeBakey Heart and Vascular Center Houston TX
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2
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Scarsini R, Portolan L, Della Mora F, Fabroni M, Andreaggi S, Mainardi A, Springhetti P, Dotto A, Del Sole PA, Fezzi S, Pazzi S, Tavella D, Mammone C, Lunardi M, Pesarini G, Benfari G, Ribichini FL. Coronary microvascular dysfunction in patients undergoing transcatheter aortic valve implantation. Heart 2024; 110:603-612. [PMID: 38040448 DOI: 10.1136/heartjnl-2023-323461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 11/09/2023] [Indexed: 12/03/2023] Open
Abstract
OBJECTIVES This study aimed to evaluate the prognostic value of coronary microvascular dysfunction (CMD) at long term after transcatheter aortic valve implantation (TAVI) and to explore its relationship with extravalvular cardiac damage (EVCD). Moreover, we sought to test the correlation between angiography-derived index of microcirculatory resistance (IMRangio) and invasive IMR in patients with aortic stenosis (AS). METHODS This was a retrospective analysis of the Verona Valvular Heart Disease Registry (Italy) including 250 patients (83 (80-86) years, 53% female) with severe AS who underwent TAVI between 2019 and 2021. IMRangio was calculated offline using a computational flow model applied to coronary angiography obtained during the TAVI workup. CMD was defined as IMRangio ≥30 units.The primary endpoint was the composite of cardiovascular death and rehospitalisation for heart failure (HF). Advanced EVCD was defined as pulmonary circulation impairment, severe tricuspid regurgitation or right ventricular dysfunction.The correlation between IMR and IMRangio was prospectively assessed in 31 patients undergoing TAVI. RESULTS The primary endpoint occurred in 28 (11.2%) patients at a median follow-up of 22 (IQR 12-30) months. Patients with CMD met the primary endpoint more frequently than those without CMD (22.9% vs 2.8%, p<0.0001). Patients with CMD were more frequently characterised by advanced EVCD (33 (31.4%) vs 27 (18.6%), p=0.024). CMD was an independent predictor of adverse outcomes (adjusted HR 6.672 (2.251 to 19.778), p=0.001) and provided incremental prognostic value compared with conventional clinical and imaging variables. IMRangio demonstrated fair correlation with IMR. CONCLUSIONS CMD is an independent predictor of cardiovascular mortality and HF after TAVI.
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Affiliation(s)
- Roberto Scarsini
- Department of Medicine, Division of Cardiology, University of Verona, Verona, Italy
- Interventional Cardiology Unit, Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy
| | - Leonardo Portolan
- Department of Medicine, Division of Cardiology, University of Verona, Verona, Italy
| | - Francesco Della Mora
- Department of Medicine, Division of Cardiology, University of Verona, Verona, Italy
| | - Margherita Fabroni
- Department of Medicine, Division of Cardiology, University of Verona, Verona, Italy
| | - Stefano Andreaggi
- Department of Medicine, Division of Cardiology, University of Verona, Verona, Italy
| | - Andrea Mainardi
- Department of Medicine, Division of Cardiology, University of Verona, Verona, Italy
| | - Paolo Springhetti
- Department of Medicine, Division of Cardiology, University of Verona, Verona, Italy
| | - Alberto Dotto
- Department of Medicine, Division of Cardiology, University of Verona, Verona, Italy
| | | | - Simone Fezzi
- Department of Medicine, Division of Cardiology, University of Verona, Verona, Italy
| | - Sara Pazzi
- Department of Medicine, Division of Cardiology, University of Verona, Verona, Italy
| | - Domenico Tavella
- Department of Medicine, Division of Cardiology, University of Verona, Verona, Italy
- Interventional Cardiology Unit, Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy
| | - Concetta Mammone
- Department of Medicine, Division of Cardiology, University of Verona, Verona, Italy
- Interventional Cardiology Unit, Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy
| | - Mattia Lunardi
- Department of Medicine, Division of Cardiology, University of Verona, Verona, Italy
- Interventional Cardiology Unit, Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy
| | - Gabriele Pesarini
- Department of Medicine, Division of Cardiology, University of Verona, Verona, Italy
- Interventional Cardiology Unit, Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy
| | - Giovanni Benfari
- Department of Medicine, Division of Cardiology, University of Verona, Verona, Italy
| | - Flavio Luciano Ribichini
- Department of Medicine, Division of Cardiology, University of Verona, Verona, Italy
- Interventional Cardiology Unit, Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy
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3
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Dweck MR, Loganath K, Bing R, Treibel TA, McCann GP, Newby DE, Leipsic J, Fraccaro C, Paolisso P, Cosyns B, Habib G, Cavalcante J, Donal E, Lancellotti P, Clavel MA, Otto CM, Pibarot P. Multi-modality imaging in aortic stenosis: an EACVI clinical consensus document. Eur Heart J Cardiovasc Imaging 2023; 24:1430-1443. [PMID: 37395329 DOI: 10.1093/ehjci/jead153] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 06/16/2023] [Indexed: 07/04/2023] Open
Abstract
In this EACVI clinical scientific update, we will explore the current use of multi-modality imaging in the diagnosis, risk stratification, and follow-up of patients with aortic stenosis, with a particular focus on recent developments and future directions. Echocardiography is and will likely remain the key method of diagnosis and surveillance of aortic stenosis providing detailed assessments of valve haemodynamics and the cardiac remodelling response. Computed tomography (CT) is already widely used in the planning of transcutaneous aortic valve implantation. We anticipate its increased use as an anatomical adjudicator to clarify disease severity in patients with discordant echocardiographic measurements. CT calcium scoring is currently used for this purpose; however, contrast CT techniques are emerging that allow identification of both calcific and fibrotic valve thickening. Additionally, improved assessments of myocardial decompensation with echocardiography, cardiac magnetic resonance, and CT will become more commonplace in our routine assessment of aortic stenosis. Underpinning all of this will be widespread application of artificial intelligence. In combination, we believe this new era of multi-modality imaging in aortic stenosis will improve the diagnosis, follow-up, and timing of intervention in aortic stenosis as well as potentially accelerate the development of the novel pharmacological treatments required for this disease.
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Affiliation(s)
- Marc R Dweck
- Centre for Cardiovascular Science, University of Edinburgh, Chancellors Building, Little France Crescent, Edinburgh, EH16 4SB, UK
| | - Krithika Loganath
- Centre for Cardiovascular Science, University of Edinburgh, Chancellors Building, Little France Crescent, Edinburgh, EH16 4SB, UK
| | - Rong Bing
- Centre for Cardiovascular Science, University of Edinburgh, Chancellors Building, Little France Crescent, Edinburgh, EH16 4SB, UK
| | - Thomas A Treibel
- Barts Heart Centre, Bart's Health NHS Trust, W Smithfield, EC1A 7BE, London, UK
- University College London Institute of Cardiovascular Science, 62 Huntley St, WC1E 6DD, London, UK
| | - Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester, University Rd, Leicester LE1 7RH, UK
- The NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester, LE3 9QP, UK
| | - David E Newby
- Centre for Cardiovascular Science, University of Edinburgh, Chancellors Building, Little France Crescent, Edinburgh, EH16 4SB, UK
| | - Jonathon Leipsic
- Centre for Cardiovascular Innovation, St Paul's and Vancouver General Hospital, 1081 Burrard St Room 166, Vancouver, British Columbia V6Z 1Y6, Canada
| | - Chiara Fraccaro
- Department of Cardiac, Thoracic and Vascular Science and Public Health, Via Giustiniani, 2 - 35128, Padua, Italy
| | - Pasquale Paolisso
- Cardiovascular Center Aalst, OLV Clinic, Moorselbaan 164, 9300 Aalst, Belgium
- Department of Advanced Biomedical Sciences, University of Naples, Federico II, 80125 Naples, Italy
| | - Bernard Cosyns
- Department of Cardiology, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090 Jette, Belgium
| | - Gilbert Habib
- Cardiology Department, Hôpital La Timone, 264 Rue Saint-Pierre, 13005 Marseille, France
| | - João Cavalcante
- Allina Health Minneapolis Heart Institute, Abbott Northwestern Hospital, 800 E 28th St, Minneapolis, MN 55407, USA
| | - Erwan Donal
- Cardiology and CIC, Université Rennes, 2 Rue Henri Le Guilloux, 35033 Rennes, France
| | - Patrizio Lancellotti
- GIGA Cardiovascular Sciences, Department of Cardiology, University of Liège Hospital, CHU Sart Tilman, Liège, Belgium
- Gruppo Villa Maria Care and Research, Corso Giuseppe Garibaldi, 11, 48022 Lugo RA, Italy
| | - Marie-Annick Clavel
- Institut Universitaire de Cardiologie et de Pneumologie de Québec/Québec Heart and Lung Institute, 2725 Ch Ste-Foy, Québec, QC G1V 4G5, Canada
- Faculté de Médecine-Département de Médecine, Université Laval, Ferdinand Vandry Pavillon, 1050 Av. de la Médecine, Québec City, Quebec G1V 0A6, Canada
| | - Catherine M Otto
- Division of Cardiology, Department of Medicine, University of Washington School of Medicine, 4333 Brooklyn Ave NE Box 359458, Seattle, WA 98195-9458, USA
| | - Phillipe Pibarot
- Institut Universitaire de Cardiologie et de Pneumologie de Québec/Québec Heart and Lung Institute, 2725 Ch Ste-Foy, Québec, QC G1V 4G5, Canada
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Dattani A, Brady EM, Alfuhied A, Gulsin GS, Steadman CD, Yeo JL, Aslam S, Banovic M, Jerosch-Herold M, Xue H, Kellman P, Costet P, Cvijic ME, Zhao L, Ebert C, Liu L, Gunawardhana K, Gordon D, Chang CP, Arnold JR, Yates T, Kelly D, Hogrefe K, Dawson D, Greenwood J, Ng LL, Singh A, McCann GP. Impact of diabetes on remodelling, microvascular function and exercise capacity in aortic stenosis. Open Heart 2023; 10:e002441. [PMID: 37586847 PMCID: PMC10432628 DOI: 10.1136/openhrt-2023-002441] [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: 07/31/2023] [Accepted: 08/04/2023] [Indexed: 08/18/2023] Open
Abstract
OBJECTIVE To characterise cardiac remodelling, exercise capacity and fibroinflammatory biomarkers in patients with aortic stenosis (AS) with and without diabetes, and assess the impact of diabetes on outcomes. METHODS Patients with moderate or severe AS with and without diabetes underwent echocardiography, stress cardiovascular magnetic resonance (CMR), cardiopulmonary exercise testing and plasma biomarker analysis. Primary endpoint for survival analysis was a composite of cardiovascular mortality, myocardial infarction, hospitalisation with heart failure, syncope or arrhythmia. Secondary endpoint was all-cause death. RESULTS Diabetes (n=56) and non-diabetes groups (n=198) were well matched for age, sex, ethnicity, blood pressure and severity of AS. The diabetes group had higher body mass index, lower estimated glomerular filtration rate and higher rates of hypertension, hyperlipidaemia and symptoms of AS. Biventricular volumes and systolic function were similar, but the diabetes group had higher extracellular volume fraction (25.9%±3.1% vs 24.8%±2.4%, p=0.020), lower myocardial perfusion reserve (2.02±0.75 vs 2.34±0.68, p=0.046) and lower percentage predicted peak oxygen consumption (68%±21% vs 77%±17%, p=0.002) compared with the non-diabetes group. Higher levels of renin (log10renin: 3.27±0.59 vs 2.82±0.69 pg/mL, p<0.001) were found in diabetes. Multivariable Cox regression analysis showed diabetes was not associated with cardiovascular outcomes, but was independently associated with all-cause mortality (HR 2.04, 95% CI 1.05 to 4.00; p=0.037). CONCLUSIONS In patients with moderate-to-severe AS, diabetes is associated with reduced exercise capacity, increased diffuse myocardial fibrosis and microvascular dysfunction, but not cardiovascular events despite a small increase in mortality.
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Affiliation(s)
- Abhishek Dattani
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester, UK
| | - Emer M Brady
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester, UK
| | - Aseel Alfuhied
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester, UK
| | - Gaurav S Gulsin
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester, UK
| | - Christopher D Steadman
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester, UK
- Department of Cardiology, Poole Hospital NHS Foundation Trust, Poole, UK
| | - Jian L Yeo
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester, UK
| | - Saadia Aslam
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester, UK
| | - Marko Banovic
- Cardiology Department, Clinical Centre of Serbia, Belgrade, Serbia
| | | | - Hui Xue
- National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Peter Kellman
- National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | | | | | - Lei Zhao
- Bristol Myers Squibb Co, Princeton, New Jersey, USA
| | | | - Laura Liu
- Bristol Myers Squibb Co, Princeton, New Jersey, USA
| | | | - David Gordon
- Bristol Myers Squibb Co, Princeton, New Jersey, USA
| | | | - J Ranjit Arnold
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester, UK
| | - Thomas Yates
- Diabetes Research Centre, University of Leicester, Leicester, UK
| | - Damian Kelly
- Cardiology Department, Royal Derby Hospital, Derby, UK
| | - Kai Hogrefe
- Cardiology Department, Kettering General Hospital NHS Foundation Trust, Kettering, UK
| | - Dana Dawson
- Cardiovascular Medicine Research Unit, University of Aberdeen, Aberdeen, UK
| | - John Greenwood
- Department of Cardiology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
- Department of Biomedical Imaging Sciences, University of Leeds, Leeds, UK
| | - Leong L Ng
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester, UK
| | - Anvesha Singh
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester, UK
| | - Gerry P McCann
- Department of Cardiovascular Sciences and NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester, UK
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5
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Veerapudran S, Damodaran D, Pillai VV, Natarajan G, Pillai PTK, Karunakaran J. Left ventricular mass regression after aortic valve replacement with the TTK Chitra™ monoleaflet tilting disc valve. Indian J Thorac Cardiovasc Surg 2023; 39:238-243. [PMID: 37124592 PMCID: PMC10140195 DOI: 10.1007/s12055-022-01468-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 02/09/2023] Open
Abstract
Objective To study the extent of left ventricular (LV) mass regression in aortic stenosis after aortic valve replacement with the TTK Chitra™ tilting disc valve. Methods and materials This study included patients with severe isolated aortic stenosis (AS), admitted in our department. They had aortic valve replacement (AVR) with the TTK Chitra™ tilting disc valve, between January 2008 and December 2010. Data were collected from consecutive forty-eight patients. LV mass and diametric and functional parameters were recorded preoperatively and compared with echocardiography after 3 months, 6 months, then yearly, up to 3 years. Results 70.8% of the patients were males and 29.2% were females. The mean duration of illness was 37.92 ± 25.87 months. The mean LV ejection fraction increased 3 months after surgery (61.56 ± 10.10% to 69.31 ± 9.34%) with a sustained increase for the next 3 years. The mean LV end-diastolic diameter decreased (50.16 ± 6.05 mm to 45.69 ± 5.93 mm) after 3 months of surgery, with a sustained decrease for the next 3 years. The mean LV end-systolic diameter decreased (32.84 ± 6.96 mm to 29.41 ± 5.86 mm) after 3 months of surgery and then showed a sustained decrease for the next 3 years. The LV mass assessed with echocardiography regressed from 324.65 ± 97.77 g before surgery to 252.64 ± 71.12 g after 3 months and then showed a sustained decrease over the next 3 years. Conclusion Significant LV mass regression occurred after AVR with the TTK Chitra™ valve. The maximum reversal was found to be within the first 3 months after surgery with sustained beneficial improvement for the next 3 years.
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Affiliation(s)
- Sivaprasad Veerapudran
- Department of Cardiovascular and Thoracic Surgery, Sree ChitraTirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala 695011 India
- Trivandrum, India
| | - Deepthi Damodaran
- Department of Physiology, Medical College Thiruvananthapuram, Thiruvananthapuram, Kerala India
| | - Vivek Velayudhan Pillai
- Department of Cardiovascular and Thoracic Surgery, Sree ChitraTirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala 695011 India
| | - Geetha Natarajan
- Department of Physiology, Medical College Thiruvananthapuram, Thiruvananthapuram, Kerala India
| | | | - Jayakumar Karunakaran
- Department of Cardiovascular and Thoracic Surgery, Sree ChitraTirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala 695011 India
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Ayton SL, Alfuhied A, Gulsin GS, Parke KS, Wormleighton JV, Arnold JR, Moss AJ, Singh A, Xue H, Kellman P, Graham‐Brown MPM, McCann GP. The Interfield Strength Agreement of Left Ventricular Strain Measurements at 1.5 T and 3 T Using Cardiac MRI Feature Tracking. J Magn Reson Imaging 2023; 57:1250-1261. [PMID: 35767224 PMCID: PMC10947203 DOI: 10.1002/jmri.28328] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 06/16/2022] [Accepted: 06/16/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Left ventricular (LV) strain measurements can be derived using cardiac MRI from routinely acquired balanced steady-state free precession (bSSFP) cine images. PURPOSE To compare the interfield strength agreement of global systolic strain, peak strain rates and artificial intelligence (AI) landmark-based global longitudinal shortening at 1.5 T and 3 T. STUDY TYPE Prospective. SUBJECTS A total of 22 healthy individuals (mean age 36 ± 12 years; 45% male) completed two cardiac MRI scans at 1.5 T and 3 T in a randomized order within 30 minutes. FIELD STRENGTH/SEQUENCE: bSSFP cine images at 1.5 T and 3 T. ASSESSMENT Two software packages, Tissue Tracking (cvi42, Circle Cardiovascular Imaging) and QStrain (Medis Suite, Medis Medical Imaging Systems), were used to derive LV global systolic strain in the longitudinal, circumferential and radial directions and peak (systolic, early diastolic, and late diastolic) strain rates. Global longitudinal shortening and mitral annular plane systolic excursion (MAPSE) were measured using an AI deep neural network model. STATISTICAL TESTS Comparisons between field strengths were performed using Wilcoxon signed-rank test (P value < 0.05 considered statistically significant). Agreement was determined using intraclass correlation coefficients (ICCs) and Bland-Altman plots. RESULTS Minimal bias was seen in all strain and strain rate measurements between field strengths. Using Tissue Tracking, strain and strain rate values derived from long-axis images showed poor to fair agreement (ICC range 0.39-0.71), whereas global longitudinal shortening and MAPSE showed good agreement (ICC = 0.81 and 0.80, respectively). Measures derived from short-axis images showed good to excellent agreement (ICC range 0.78-0.91). Similar results for the agreement of strain and strain rate measurements were observed with QStrain. CONCLUSION The interfield strength agreement of short-axis derived LV strain and strain rate measurements at 1.5 T and 3 T was better than those derived from long-axis images; however, the agreement of global longitudinal shortening and MAPSE was good. EVIDENCE LEVEL 2 TECHNICAL EFFICACY: Stage 2.
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Affiliation(s)
- Sarah L. Ayton
- Department of Cardiovascular SciencesUniversity of Leicester and the NIHR Leicester Biomedical Research Centre, Glenfield HospitalLeicesterUK
| | - Aseel Alfuhied
- Department of Cardiovascular SciencesUniversity of Leicester and the NIHR Leicester Biomedical Research Centre, Glenfield HospitalLeicesterUK
| | - Gaurav S. Gulsin
- Department of Cardiovascular SciencesUniversity of Leicester and the NIHR Leicester Biomedical Research Centre, Glenfield HospitalLeicesterUK
| | - Kelly S. Parke
- Department of Cardiovascular SciencesUniversity of Leicester and the NIHR Leicester Biomedical Research Centre, Glenfield HospitalLeicesterUK
| | - Joanne V. Wormleighton
- Department of Cardiovascular SciencesUniversity of Leicester and the NIHR Leicester Biomedical Research Centre, Glenfield HospitalLeicesterUK
| | - J. Ranjit Arnold
- Department of Cardiovascular SciencesUniversity of Leicester and the NIHR Leicester Biomedical Research Centre, Glenfield HospitalLeicesterUK
| | - Alastair J. Moss
- Department of Cardiovascular SciencesUniversity of Leicester and the NIHR Leicester Biomedical Research Centre, Glenfield HospitalLeicesterUK
| | - Anvesha Singh
- Department of Cardiovascular SciencesUniversity of Leicester and the NIHR Leicester Biomedical Research Centre, Glenfield HospitalLeicesterUK
| | - Hui Xue
- National Heart, Lung and Blood Institute, National Institutes of HealthBethesdaMarylandUSA
| | - Peter Kellman
- National Heart, Lung and Blood Institute, National Institutes of HealthBethesdaMarylandUSA
| | - Matthew P. M. Graham‐Brown
- Department of Cardiovascular SciencesUniversity of Leicester and the NIHR Leicester Biomedical Research Centre, Glenfield HospitalLeicesterUK
| | - Gerry P. McCann
- Department of Cardiovascular SciencesUniversity of Leicester and the NIHR Leicester Biomedical Research Centre, Glenfield HospitalLeicesterUK
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7
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Iribarren AC, AlBadri A, Wei J, Nelson MD, Li D, Makkar R, Merz CNB. Sex differences in aortic stenosis: Identification of knowledge gaps for sex-specific personalized medicine. AMERICAN HEART JOURNAL PLUS : CARDIOLOGY RESEARCH AND PRACTICE 2022; 21:100197. [PMID: 36330169 PMCID: PMC9629620 DOI: 10.1016/j.ahjo.2022.100197] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/18/2022] [Accepted: 08/20/2022] [Indexed: 06/16/2023]
Abstract
Objectives This review summarizes sex-based differences in aortic stenosis (AS) and identifies knowledge gaps that should be addressed by future studies. Background AS is the most common valvular heart disease in developed countries. Sex-specific differences have not been fully appreciated, as a result of widespread under diagnosis of AS in women. Summary Studies including sex-stratified analyses have shown differences in pathophysiology with less calcification and more fibrosis in women's aortic valve. Women have impaired myocardial perfusion reserve and different compensatory response of the left ventricle (LV) to pressure overload, with concentric remodeling and more diffuse fibrosis, in contrast to men with more focal fibrosis and more dilated/eccentrically remodeled LV. There is sex difference in clinical presentation and anatomical characteristics, with women having more paradoxical low-flow/low-gradient AS, under-diagnosis and severity underestimated, with less referral to aortic valve replacement (AVR) compared to men. The response to therapies is also different: women have more adverse events with surgical AVR and greater survival benefit with transcatheter AVR. After AVR, women would have more favorable LV remodeling, but sex-related differences in changes in myocardial reserve flow need future research. Conclusions Investigation into these described sex-related differences in AS offers potential utility for improving prevention and treatment of AS in women and men. To better understand sex-based differences in pathophysiology, clinical presentation, and response to therapies, sex-specific critical knowledge gaps should be addressed in future research for sex-specific personalized medicine.
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Affiliation(s)
- Ana C. Iribarren
- Barbra Streisand Women's Heart Center, Cedars-Sinai Smidt Heart Institute, Los Angeles, CA, United States of America
| | - Ahmed AlBadri
- Barbra Streisand Women's Heart Center, Cedars-Sinai Smidt Heart Institute, Los Angeles, CA, United States of America
| | - Janet Wei
- Barbra Streisand Women's Heart Center, Cedars-Sinai Smidt Heart Institute, Los Angeles, CA, United States of America
- Cedars-Sinai Biomedical Imaging Research Institute, Los Angeles, CA, United States of America
| | - Michael D. Nelson
- Barbra Streisand Women's Heart Center, Cedars-Sinai Smidt Heart Institute, Los Angeles, CA, United States of America
| | - Debiao Li
- Cedars-Sinai Biomedical Imaging Research Institute, Los Angeles, CA, United States of America
| | - Raj Makkar
- Cedars-Sinai Cardiovascular Intervention Center, Smidt Heart Institute, Los Angeles, CA, United States of America
| | - C. Noel Bairey Merz
- Barbra Streisand Women's Heart Center, Cedars-Sinai Smidt Heart Institute, Los Angeles, CA, United States of America
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8
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Stein EJ, Fearon WF, Elmariah S, Kim JB, Kapadia S, Kumbhani DJ, Gillam L, Whisenant B, Quader N, Zajarias A, Welt FG, Bavry AA, Coylewright M, Piana RN, Mallugari RR, Clark DE, Patel JN, Gonzales H, Gupta DK, Vatterott A, Jackson N, Huang S, Lindman BR. Left Ventricular Hypertrophy and Biomarkers of Cardiac Damage and Stress in Aortic Stenosis. J Am Heart Assoc 2022; 11:e023466. [PMID: 35301869 PMCID: PMC9075421 DOI: 10.1161/jaha.121.023466] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background Left ventricular hypertrophy (LVH) is associated with increased mortality risk and rehospitalization after transcatheter aortic valve replacement among those with severe aortic stenosis. Whether cardiac troponin (cTnT) and NT‐proBNP (N‐terminal pro‐B‐type natriuretic peptide) risk stratify patients with aortic stenosis and without LVH is unknown. Methods and Results In a multicenter prospective registry of 923 patients with severe aortic stenosis undergoing transcatheter aortic valve replacement, we included 674 with core‐laboratory‐measured LV mass index, cTnT, and NT‐proBNP. LVH was defined by sex‐specific guideline cut‐offs and elevated biomarker levels were based on age and sex cut‐offs. Adjusted Cox proportional hazards models evaluated associations between LVH and biomarkers and all‐cause death out to 5 years. Elevated cTnT and NT‐proBNP were present in 82% and 86% of patients with moderate/severe LVH, respectively, as compared with 66% and 69% of patients with no/mild LVH, respectively (P<0.001 for each). After adjustment, compared with no/mild LVH, moderate/severe LVH was associated with an increased hazard of mortality (adjusted hazard ratio [aHR], 1.34; 95% CI 1.01–1.77, P=0.043). cTnT and NT‐proBNP each risk stratified patients with moderate/severe LVH (P<0.05). In a model with both biomarkers and LVH included, elevated cTnT (aHR, 2.08; 95% CI 1.45–3.00, P<0.001) and elevated NT‐proBNP (aHR, 1.46; 95% CI 1.00–2.11, P=0.049) were each associated with increased mortality risk, whereas moderate/severe LVH was not (P=0.15). Conclusions Elevations in circulating cTnT and NT‐proBNP are more common as LVH becomes more pronounced but are also observed in those with no/minimal LVH. As measures of maladaptive remodeling and cardiac injury, cTnT and NT‐proBNP predict post‐transcatheter aortic valve replacement mortality better than LV mass index. These findings may have important implications for risk stratification and treatment of patients with aortic stenosis.
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Affiliation(s)
- Elliot J Stein
- Department of Medicine Vanderbilt University Medical Center Nashville TN
| | - William F Fearon
- Division of Cardiology Department of Medicine Stanford Medical Center Palo Alto CA
| | - Sammy Elmariah
- Division of Cardiology Department of Medicine Massachusetts General Hospital Boston MA
| | - Juyong B Kim
- Division of Cardiology Department of Medicine Stanford Medical Center Palo Alto CA
| | - Samir Kapadia
- Division of Cardiology Department of Medicine Cleveland Clinic Foundation Cleveland OH
| | - Dharam J Kumbhani
- Division of Cardiology Department of Medicine University of Texas Southwestern Medical Center Dallas TX
| | - Linda Gillam
- Division of Cardiology Department of Medicine Morristown Medical Center Morristown NJ
| | - Brian Whisenant
- Division of Cardiology Department of Medicine Intermountain Heart Institute Murray UT
| | - Nishath Quader
- Division of Cardiology Department of Medicine Barnes-Jewish Hospital St. Louis MO
| | - Alan Zajarias
- Division of Cardiology Department of Medicine Barnes-Jewish Hospital St. Louis MO
| | - Frederick G Welt
- Division of Cardiology Department of Medicine University of Utah Hospital Salt Lake City UT
| | - Anthony A Bavry
- Division of Cardiology Department of Medicine University of Texas Southwestern Medical Center Dallas TX
| | - Megan Coylewright
- Department of Cardiovascular Medicine The Erlanger Heart and Lung Institute Chattanooga TN
| | - Robert N Piana
- Division of Cardiology Department of Medicine Vanderbilt University Medical Center Nashville TN
| | - Ravinder R Mallugari
- Division of Cardiology Department of Medicine Vanderbilt University Medical Center Nashville TN
| | - Daniel E Clark
- Division of Cardiology Department of Medicine Vanderbilt University Medical Center Nashville TN
| | - Jay N Patel
- Division of Cardiology Department of Medicine Vanderbilt University Medical Center Nashville TN
| | - Holly Gonzales
- Division of Cardiology Department of Medicine Vanderbilt University Medical Center Nashville TN
| | - Deepak K Gupta
- Division of Cardiology Department of Medicine Vanderbilt University Medical Center Nashville TN
| | - Anna Vatterott
- Division of Cardiology Department of Medicine Barnes-Jewish Hospital St. Louis MO
| | - Natalie Jackson
- Division of Cardiology Department of Medicine Vanderbilt University Medical Center Nashville TN.,Structural Heart and Valve Center Vanderbilt University Medical Center Nashville TN
| | - Shi Huang
- Department of Biostatistics Vanderbilt University School of Medicine Nashville TN
| | - Brian R Lindman
- Division of Cardiology Department of Medicine Vanderbilt University Medical Center Nashville TN.,Structural Heart and Valve Center Vanderbilt University Medical Center Nashville TN
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9
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Aleksandric S, Banovic M, Beleslin B. Challenges in Diagnosis and Functional Assessment of Coronary Artery Disease in Patients With Severe Aortic Stenosis. Front Cardiovasc Med 2022; 9:849032. [PMID: 35360024 PMCID: PMC8961810 DOI: 10.3389/fcvm.2022.849032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 02/16/2022] [Indexed: 01/10/2023] Open
Abstract
More than half of patients with severe aortic stenosis (AS) over 70 years old have coronary artery disease (CAD). Exertional angina is often present in AS-patients, even in the absence of significant CAD, as a result of oxygen supply/demand mismatch and exercise-induced myocardial ischemia. Moreover, persistent myocardial ischemia leads to extensive myocardial fibrosis and subsequent coronary microvascular dysfunction (CMD) which is defined as reduced coronary vasodilatory capacity below ischemic threshold. Therefore, angina, as well as noninvasive stress tests, have a low specificity and positive predictive value (PPV) for the assessment of epicardial coronary stenosis severity in AS-patients. Moreover, in symptomatic patients with severe AS exercise testing is even contraindicated. Given the limitations of noninvasive stress tests, coronary angiography remains the standard examination for determining the presence and severity of CAD in AS-patients, although angiography alone has poor accuracy in the evaluation of its functional severity. To overcome this limitation, the well-established invasive indices for the assessment of coronary stenosis severity, such as fractional flow reserve (FFR) and instantaneous wave-free ratio (iFR), are now in focus, especially in the contemporary era with the rapid increment of transcatheter aortic valve replacement (TAVR) for the treatment of AS-patients. TAVR induces an immediate decrease in hyperemic microcirculatory resistance and a concomitant increase in hyperemic flow velocity, whereas resting coronary hemodynamics remain unaltered. These findings suggest that FFR may underestimate coronary stenosis severity in AS-patients, whereas iFR as the non-hyperemic index is independent of the AS severity. However, because resting coronary hemodynamics do not improve immediately after TAVR, the coronary vasodilatory capacity in AS-patients treated by TAVR remain impaired, and thus the iFR may overestimate coronary stenosis severity in these patients. The optimal method for evaluating myocardial ischemia in patients with AS and co-existing CAD has not yet been fully established, and this important issue is under further investigation. This review is focused on challenges, limitations, and future perspectives in the functional assessment of coronary stenosis severity in these patients, bearing in mind the complexity of coronary physiology in the presence of this valvular heart disease.
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Affiliation(s)
- Srdjan Aleksandric
- Cardiology Clinic, University Clinical Center of Serbia, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
- *Correspondence: Srdjan Aleksandric
| | - Marko Banovic
- Cardiology Clinic, University Clinical Center of Serbia, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Branko Beleslin
- Cardiology Clinic, University Clinical Center of Serbia, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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10
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Ramesh P, Yeo JL, Brady EM, McCann GP. Role of inflammation in diabetic cardiomyopathy. Ther Adv Endocrinol Metab 2022; 13:20420188221083530. [PMID: 35308180 PMCID: PMC8928358 DOI: 10.1177/20420188221083530] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 02/07/2022] [Indexed: 12/11/2022] Open
Abstract
The prevalence of type 2 diabetes (T2D) has reached a pandemic scale. Systemic chronic inflammation dominates the diabetes pathophysiology and has been implicated as a causal factor for the development of vascular complications. Heart failure (HF) is regarded as the most common cardiovascular complication of T2D and the diabetic diagnosis is an independent risk factor for HF development. Key molecular mechanisms pivotal to the development of diabetic cardiomyopathy include the NF-κB pathway and renin-angiotensin-aldosterone system, in addition to advanced glycation end product accumulation and inflammatory interleukin overexpression. Chronic myocardial inflammation in T2D mediates structural and metabolic changes, including cardiomyocyte apoptosis, impaired calcium handling, myocardial hypertrophy and fibrosis, all of which contribute to the diabetic HF phenotype. Advanced cardiovascular magnetic resonance imaging (CMR) has emerged as a gold standard non-invasive tool to delineate myocardial structural and functional changes. This review explores the role of chronic inflammation in diabetic cardiomyopathy and the ability of CMR to identify inflammation-mediated myocardial sequelae, such as oedema and diffuse fibrosis.
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Affiliation(s)
- Pranav Ramesh
- Department of Cardiovascular Sciences, University of Leicester and NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester, LE3 9QP, UK
| | | | - Emer M. Brady
- Department of Cardiovascular Sciences, University of Leicester and NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester, LE3 9QP, UK
| | - Gerry P. McCann
- Department of Cardiovascular Sciences, University of Leicester and NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester, LE3 9QP, UK
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11
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Zhou W, Sun YP, Divakaran S, Bajaj NS, Gupta A, Chandra A, Morgan V, Barrett L, Martell L, Bibbo CF, Hainer J, Lewis EF, Taqueti VR, Dorbala S, Blankstein R, Slomka P, Shah PB, Kaneko T, Adler DS, O'Gara P, Di Carli MF. Association of Myocardial Blood Flow Reserve With Adverse Left Ventricular Remodeling in Patients With Aortic Stenosis: The Microvascular Disease in Aortic Stenosis (MIDAS) Study. JAMA Cardiol 2021; 7:93-99. [PMID: 34524397 DOI: 10.1001/jamacardio.2021.3396] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Importance Impaired myocardial flow reserve (MFR) and stress myocardial blood flow (MBF) on positron emission tomography (PET) myocardial perfusion imaging may identify adverse myocardial characteristics, including myocardial stress and injury in aortic stenosis (AS). Objective To investigate whether MFR and stress MBF are associated with LV structure and function derangements, and whether these parameters improve after aortic valve replacement (AVR). Design, Setting, and Participants In this single-center prospective observational study in Boston, Massachusetts, from 2018 to 2020, patients with predominantly moderate to severe AS underwent ammonia N13 PET myocardial perfusion imaging for myocardial blood flow (MBF) quantification, resting transthoracic echocardiography (TTE) for assessment of myocardial structure and function, and measurement of circulating biomarkers for myocardial injury and wall stress. Evaluation of health status and functional capacity was also performed. A subset of patients underwent repeated assessment 6 months after AVR. A control group included patients without AS matched for age, sex, and summed stress score who underwent symptom-prompted ammonia N13 PET and TTE within 90 days. Exposures MBF and MFR quantified on ammonia N13 PET myocardial perfusion imaging. Main Outcomes and Measures LV structure and function parameters, including echocardiographic global longitudinal strain (GLS), circulating high-sensitivity troponin T (hs-cTnT), N-terminal pro-B-type natriuretic peptide (NT-pro BNP), health status, and functional capacity. Results There were 34 patients with AS (1 mild, 9 moderate, and 24 severe) and 34 matched control individuals. MFR was independently associated with GLS and LV ejection fraction, (β,-0.31; P = .03; β, 0.41; P = .002, respectively). Stress MBF was associated with hs-cTnT (unadjusted β, -0.48; P = .005) and log NT-pro BNP (unadjusted β, -0.37; P = .045). The combination of low stress MBF and high hs-cTnT was associated with higher interventricular septal thickness in diastole, relative wall thickness, and worse GLS compared with high stress MBF and low hs-cTnT (12.4 mm vs 10.0 mm; P = .008; 0.62 vs 0.46; P = .02; and -13.47 vs -17.11; P = .006, respectively). In 9 patients studied 6 months after AVR, mean (SD) MFR improved from 1.73 (0.57) to 2.11 (0.50) (P = .008). Conclusions and Relevance In this study, in AS, MFR and stress MBF were associated with adverse myocardial characteristics, including markers of myocardial injury and wall stress, suggesting that MFR may be an early sensitive marker for myocardial decompensation.
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Affiliation(s)
- Wunan Zhou
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.,Cardiology Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland
| | - Yee-Ping Sun
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Sanjay Divakaran
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Navkaranbir S Bajaj
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Ankur Gupta
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Alvin Chandra
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.,Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Victoria Morgan
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Leanne Barrett
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Laurel Martell
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Courtney F Bibbo
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Jon Hainer
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Eldrin F Lewis
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.,Division of Cardiovascular Medicine, Stanford University, Palo Alto, California
| | - Viviany R Taqueti
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Sharmila Dorbala
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Ron Blankstein
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Piotr Slomka
- Division of Artificial Intelligence in Medicine, Department of Medicine and Cardiology, Cedars Sinai Medical Center, Los Angeles, California
| | - Pinak B Shah
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Tsuyoshi Kaneko
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Dale S Adler
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Patrick O'Gara
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.,Deputy Managing Editor, JAMA Cardiology
| | - Marcelo F Di Carli
- Cardiovascular Imaging Program, Division of Cardiovascular Medicine, Division of Cardiac Surgery, Heart and Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
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12
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Reid A, Blanke P, Bax JJ, Leipsic J. Multimodality imaging in valvular heart disease: how to use state-of-the-art technology in daily practice. Eur Heart J 2021; 42:1912-1925. [PMID: 33186469 DOI: 10.1093/eurheartj/ehaa768] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 06/15/2020] [Accepted: 09/08/2020] [Indexed: 12/16/2022] Open
Abstract
Our understanding of the complexities of valvular heart disease (VHD) has evolved in recent years, primarily because of the increased use of multimodality imaging (MMI). Whilst echocardiography remains the primary imaging technique, the contemporary evaluation of patients with VHD requires comprehensive analysis of the mechanism of valvular dysfunction, accurate quantification of severity, and active exclusion extravalvular consequences. Furthermore, advances in surgical and percutaneous therapies have driven the need for meticulous multimodality imaging to aid in patient and procedural selection. Fundamental decision-making regarding whom, when, and how to treat patients with VHD has become more complex. There has been rapid technological advancement in MMI; many techniques are now available in routine clinical practice, and their integration into has the potential to truly individualize management strategies. This review provides an overview of the current evidence for the use of MMI in VHD, and how various techniques within each modality can be used practically to answer clinical conundrums.
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Affiliation(s)
- Anna Reid
- Department of Radiology and Cardiology, Center for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, 1081 Burrard Street, Vancouver V6Z1Y6, BC, Canada
| | - Philipp Blanke
- Department of Radiology and Cardiology, Center for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, 1081 Burrard Street, Vancouver V6Z1Y6, BC, Canada
| | - Jeroen J Bax
- Department of Cardiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, Netherlands
| | - Jonathon Leipsic
- Department of Radiology and Cardiology, Center for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, 1081 Burrard Street, Vancouver V6Z1Y6, BC, Canada
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13
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Singh A, Chan DCS, Kanagala P, Hogrefe K, Kelly DJ, Khoo JP, Sprigings D, Greenwood JP, Abdelaty AMSEK, Jerosch-Herold M, Ng LL, McCann GP. Short-term adverse remodeling progression in asymptomatic aortic stenosis. Eur Radiol 2021; 31:3923-3930. [PMID: 33215248 PMCID: PMC8128853 DOI: 10.1007/s00330-020-07462-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/07/2020] [Accepted: 11/03/2020] [Indexed: 10/27/2022]
Abstract
OBJECTIVES Aortic stenosis (AS) is characterised by a long and variable asymptomatic course. Our objective was to use cardiovascular magnetic resonance imaging (MRI) to assess progression of adverse remodeling in asymptomatic AS. METHODS Participants from the PRIMID-AS study, a prospective, multi-centre observational study of asymptomatic patients with moderate to severe AS, who remained asymptomatic at 12 months, were invited to undergo a repeat cardiac MRI. RESULTS Forty-three participants with moderate-severe AS (mean age 64.4 ± 14.8 years, 83.4% male, aortic valve area index 0.54 ± 0.15 cm2/m2) were included. There was small but significant increase in indexed left ventricular (LV) (90.7 ± 22.0 to 94.5 ± 23.1 ml/m2, p = 0.007) and left atrial volumes (52.9 ± 11.3 to 58.6 ± 13.6 ml/m2, p < 0.001), with a decrease in systolic (LV ejection fraction 57.9 ± 4.6 to 55.6 ± 4.1%, p = 0.001) and diastolic (longitudinal diastolic strain rate 1.06 ± 0.2 to 0.99 ± 0.2 1/s, p = 0.026) function, but no overall change in LV mass or mass/volume. Late gadolinium enhancement increased (2.02 to 4.26 g, p < 0.001) but markers of diffuse interstitial fibrosis did not change significantly (extracellular volume index 12.9 [11.4, 17.0] ml/m2 to 13.3 [11.1, 15.1] ml/m2, p = 0.689). There was also a significant increase in the levels of NT-proBNP (43.6 [13.45, 137.08] pg/ml to 53.4 [19.14, 202.20] pg/ml, p = 0.001). CONCLUSIONS There is progression in cardiac remodeling with increasing scar burden even in asymptomatic AS. Given the lack of reversibility of LGE post-AVR and its association with long-term mortality post-AVR, this suggests the potential need for earlier intervention, before the accumulation of LGE, to improve the long-term outcomes in AS. KEY POINTS • Current guidelines recommend waiting until symptom onset before valve replacement in severe AS. • MRI showed clear progression in cardiac remodeling over 12 months in asymptomatic patients with AS, with near doubling in LGE. • This highlights the need for potentially earlier intervention or better risk stratification in AS.
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Affiliation(s)
- Anvesha Singh
- Department of Cardiovascular Sciences, University of Leicester and Cardiovascular Theme, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Groby road, Leicester, LE3 9QP, UK.
| | - Daniel C S Chan
- Department of Cardiovascular Sciences, University of Leicester and Cardiovascular Theme, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Groby road, Leicester, LE3 9QP, UK
| | - Prathap Kanagala
- Department of Cardiovascular Sciences, University of Leicester and Cardiovascular Theme, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Groby road, Leicester, LE3 9QP, UK
- Department of Cardiology, Aintree University Hospital, Liverpool, UK
| | - Kai Hogrefe
- Cardiology Department, Kettering General Hospital Foundation Trust, Rothwell Rd, Kettering, NN16 8UZ, UK
| | - Damian J Kelly
- Cardiology Department, Royal Derby Hospital, Uttoxeter Rd, Derby, DE22 3NE, UK
| | - Jeffery P Khoo
- Cardiology Department, Glenfield Hospital, Groby Road, Leicester, LE3 9QP, UK
| | - David Sprigings
- Northampton General Hospital, Cliftonville, Northampton, NN1 5BD, UK
| | - John P Greenwood
- Multidisciplinary Cardiovascular Research Centre & The Division of Biomedical Imaging, Leeds Institute of Cardiovascular & Metabolic Medicine, Leeds University, Leeds, LS2 9JT, UK
| | - Ahmed M S E K Abdelaty
- Department of Cardiovascular Sciences, University of Leicester and Cardiovascular Theme, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Groby road, Leicester, LE3 9QP, UK
- Cardiology Department, Suez Canal University, Ring road, Ismailia, 41611, Egypt
| | - Michael Jerosch-Herold
- Brigham and Woman's Hospital and Harvard Medical School, 75 Francis St, Boston, MA, 02115, USA
| | - Leong L Ng
- Department of Cardiovascular Sciences, University of Leicester and Cardiovascular Theme, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Groby road, Leicester, LE3 9QP, UK
| | - Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester and Cardiovascular Theme, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Groby road, Leicester, LE3 9QP, UK
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14
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Bilak JM, Gulsin GS, McCann GP. Cardiovascular and systemic determinants of exercise capacity in people with type 2 diabetes mellitus. Ther Adv Endocrinol Metab 2021; 12:2042018820980235. [PMID: 33552463 PMCID: PMC7844448 DOI: 10.1177/2042018820980235] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 11/20/2020] [Indexed: 12/15/2022] Open
Abstract
The global burden of heart failure (HF) is on the rise owing to an increasing incidence of lifestyle related diseases, predominantly type 2 diabetes mellitus (T2D). Diabetes is an independent risk factor for cardiovascular disease, and up to 75% of those with T2D develop HF in their lifetime. T2D leads to pathological alterations within the cardiovascular system, which can progress insidiously and asymptomatically in the absence of conventional risk factors. Reduced exercise tolerance is consistently reported, even in otherwise asymptomatic individuals with T2D, and is the first sign of a failing heart. Because aggressive modification of cardiovascular risk factors does not eliminate the risk of HF in T2D, it is likely that other factors play a role in the pathogenesis of HF. Early identification of individuals at risk of HF is advantageous, as it allows for modification of the reversible risk factors and early initiation of treatment with the aim of improving clinical outcomes. In this review, cardiac and extra-cardiac contributors to reduced exercise tolerance in people with T2D are explored.
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Affiliation(s)
- Joanna M. Bilak
- Department of Cardiovascular Sciences, University of Leicester and The National Institute for Health Research (NIHR) Leicester Biomedical Research Centre, Leicester, UK
| | - Gaurav S. Gulsin
- Department of Cardiovascular Sciences, University of Leicester and The National Institute for Health Research (NIHR) Leicester Biomedical Research Centre, Leicester, UK
| | - Gerry P. McCann
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester LE39QP, UK
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15
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Chan DCS, Singh A, Greenwood JP, Dawson DK, Lang CC, Berry C, Pakkal M, Everett RJ, Dweck MR, Ng LL, McCann GP. Effect of the 2017 European Guidelines on Reclassification of Severe Aortic Stenosis and Its Influence on Management Decisions for Initially Asymptomatic Aortic Stenosis. Circ Cardiovasc Imaging 2020; 13:e011763. [PMID: 33287584 DOI: 10.1161/circimaging.120.011763] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The 2017 European Society of Cardiology guidelines for valvular heart disease included changes in the definition of severe aortic stenosis (AS). We wanted to evaluate its influence on management decisions in asymptomatic patients with moderate-severe AS. METHODS We reclassified the AS severity of the participants of the PRIMID-AS study (Prognostic Importance of Microvascular Dysfunction in Asymptomatic Patients With AS), using the 2017 guidelines, determined their risk of reaching a clinical end point (valve replacement for symptoms, hospitalization, or cardiovascular death) and evaluated the prognostic value of aortic valve calcium score and biomarkers. Patients underwent echocardiography, cardiac magnetic resonance imaging, exercise tolerance testing, and biomarker assessment. RESULTS Of the 174 participants, 45% (56/124) classified as severe AS were reclassified as moderate AS. This reclassified group was similar to the original moderate group in clinical characteristics, gradients, calcium scores, and remodeling parameters. There were 47 primary end points (41 valve replacement, 1 death, and 5 hospitalizations-1 chest pain, 2 dyspnea, 1 heart failure, and 1 syncope) over 368±156 days follow-up. The severe and reclassified groups had a higher risk compared with moderate group (adjusted hazard ratio 4.95 [2.02-12.13] and 2.78 [1.07-7.22], respectively), with the reclassified group demonstrating an intermediate risk. A mean pressure gradient ≥31 mm Hg had a 7× higher risk of the primary end point in the reclassified group. Aortic valve calcium score was more prognostic in females and low valve area but not after adjusting for gradients. NT-proBNP (N-terminal pro-brain-type natriuretic peptide) and myocardial perfusion reserve were associated with the primary end point but not after adjusting for positive exercise tolerance testing. Troponin was associated with cardiovascular death or unplanned hospitalizations. CONCLUSIONS Reclassification of asymptomatic severe AS into moderate AS was common using the European Society of Cardiology 2017 guidelines. This group had an intermediate risk of reaching the primary end point. Exercise testing, multimodality imaging, and lower mean pressure gradient threshold of 31 mm Hg may improve risk stratification. Registration: URL: https://www.clinicaltrials.gov. Unique identifier: NCT01658345.
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Affiliation(s)
- Daniel C S Chan
- Department of Cardiovascular Sciences, University of Leicester and Cardiovascular Theme, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, United Kingdom (D.C.S.C., A.S., L.L.N., G.P.M.)
| | - Anvesha Singh
- Department of Cardiovascular Sciences, University of Leicester and Cardiovascular Theme, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, United Kingdom (D.C.S.C., A.S., L.L.N., G.P.M.)
| | - John P Greenwood
- Multidisciplinary Cardiovascular Research Centre, The Division of Biomedical Imaging, Leeds Institute of Cardiovascular and Metabolic Medicine, Leeds University, United Kingdom (J.P.G.)
| | - Dana K Dawson
- Cardiovascular Medicine Research Unit, School of Medicine and Dentistry, University of Aberdeen, United Kingdom (D.K.D.)
| | - Chim C Lang
- Division of Molecular and Clinical Medicine, Ninewells Hospital and Medical School, Dundee, United Kingdom (C.C.L.)
| | - Colin Berry
- BHF Glasgow Cardiovascular Research Centre, University of Glasgow, United Kingdom (C.B.)
| | - Mini Pakkal
- Department of Medical Imaging, Toronto General Hospital, ON, Canada (M.P.)
| | - Russell J Everett
- BHF Centre for Cardiovascular Science, University of Edinburgh, United Kingdom (R.J.E., M.R.D.)
| | - Marc R Dweck
- BHF Centre for Cardiovascular Science, University of Edinburgh, United Kingdom (R.J.E., M.R.D.)
| | - Leong L Ng
- Department of Cardiovascular Sciences, University of Leicester and Cardiovascular Theme, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, United Kingdom (D.C.S.C., A.S., L.L.N., G.P.M.)
| | - Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester and Cardiovascular Theme, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, United Kingdom (D.C.S.C., A.S., L.L.N., G.P.M.)
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16
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Alfuhied A, Marrow BA, Elfawal S, Gulsin GS, Graham-Brown MP, Steadman CD, Kanagala P, McCann GP, Singh A. Reproducibility of left atrial function using cardiac magnetic resonance imaging. Eur Radiol 2020; 31:2788-2797. [PMID: 33128187 PMCID: PMC8043954 DOI: 10.1007/s00330-020-07399-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 09/23/2020] [Accepted: 10/08/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To determine the test-retest reproducibility and observer variability of CMR-derived LA function, using (i) LA strain (LAS) and strain rate (LASR), and (ii) LA volumes (LAV) and emptying fraction (LAEF). METHODS Sixty participants with and without cardiovascular disease (aortic stenosis (AS) (n = 16), type 2 diabetes (T2D) (n = 28), end-stage renal disease on haemodialysis (n = 10) and healthy volunteers (n = 6)) underwent two separate CMR scans 7-14 days apart. LAS and LASR, corresponding to LA reservoir, conduit and contractile booster-pump function, were assessed using Feature Tracking software (QStrain v2.0). LAEF was calculated using the biplane area length method (QMass v8.1). Both were assessed using 4- and 2-chamber long-axis standard steady-state free precession cine images, and average values were calculated. Intra- and inter-observer variabilities were assessed in 10 randomly selected participants. RESULTS The test-retest reproducibility was moderate to poor for all strain and strain rate parameters. Overall, strain and strain rate corresponding to reservoir phase (LAS_r, LASR_r) were the most reproducible, yielding the smallest coefficient of variance (CoV) (29.9% for LAS_r, 28.9% for LASR_r). The test-retest reproducibility for LAVs and LAEF was good: LAVmax CoV = 19.6% ICC = 0.89, LAVmin CoV = 27.0% ICC = 0.89 and total LAEF CoV = 15.6% ICC = 0.78. The inter- and intra-observer variabilities were good for all parameters except for conduit function. CONCLUSION The test-retest reproducibility of LA strain and strain rate assessment by CMR utilising Feature Tracking is moderate to poor across disease states, whereas LA volume and emptying fraction are more reproducible on CMR. Further improvements in LA strain quantification are needed before widespread clinical application. KEY POINTS • LA strain and strain rate assessment using Feature Tracking on CMR has moderate to poor test-retest reproducibility across disease states. • The test-retest reproducibility for the biplane method of assessing LA function is better than strain assessment, with lower coefficient of variances and narrower limits of agreement on Bland-Altman plots. • Biplane LA volumetric measurement also has better intra- and inter-observer variability compared to strain assessment.
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Affiliation(s)
- Aseel Alfuhied
- Department of Cardiovascular Sciences, Cardiovascular Theme National Institute for Health Research (NIHR) Leicester Biomedical Research Centre, Glenfield Hospital, University of Leicester, Groby Road, Leicester, LE3 9QP, UK.,King Saud bin Abdulaziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia
| | - Benjamin A Marrow
- Department of Cardiovascular Sciences, Cardiovascular Theme National Institute for Health Research (NIHR) Leicester Biomedical Research Centre, Glenfield Hospital, University of Leicester, Groby Road, Leicester, LE3 9QP, UK
| | - Sara Elfawal
- Department of Radiology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Gaurav S Gulsin
- Department of Cardiovascular Sciences, Cardiovascular Theme National Institute for Health Research (NIHR) Leicester Biomedical Research Centre, Glenfield Hospital, University of Leicester, Groby Road, Leicester, LE3 9QP, UK
| | | | | | - Prathap Kanagala
- Department of Cardiovascular Sciences, Cardiovascular Theme National Institute for Health Research (NIHR) Leicester Biomedical Research Centre, Glenfield Hospital, University of Leicester, Groby Road, Leicester, LE3 9QP, UK
| | - Gerry P McCann
- Department of Cardiovascular Sciences, Cardiovascular Theme National Institute for Health Research (NIHR) Leicester Biomedical Research Centre, Glenfield Hospital, University of Leicester, Groby Road, Leicester, LE3 9QP, UK
| | - Anvesha Singh
- Department of Cardiovascular Sciences, Cardiovascular Theme National Institute for Health Research (NIHR) Leicester Biomedical Research Centre, Glenfield Hospital, University of Leicester, Groby Road, Leicester, LE3 9QP, UK.
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17
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Shariya MA, Ustyuzhanin DV, Lepilin PM, Imaev TE, Komlev AE, Belyaevskaya AA, Ternovoy SK. [Role of magnetic resonance imaging in patients with aortic stenosis before and after replacement of the valve]. TERAPEVT ARKH 2020; 92:70-76. [PMID: 33346434 DOI: 10.26442/00403660.2020.09.000657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 10/13/2020] [Indexed: 11/22/2022]
Abstract
Risk stratification among patients with aortic stenosis remains inadequate, and there is a clinical need for the correct identification of high-risk patients who would benefit from aortic valve intervention before developing left ventricular decompensation. Since the publication of the results of the PARTNER study, transcatheter aortic valve implantation (TAVI) has become the method of choice for aortic valve stenosis in inoperable patients and is a real alternative to conventional surgical replacement of the aortic valve in high-risk patients. In planning TAVI and postoperative monitoring of a patient from imaging methods, the leading role is played by echocardiography and multispiral computed tomography. However, in recent years, the interest of researchers in the use of magnetic resonance imaging in this category of patients has increased. The review article examines the potential role of magnetic resonance imaging in patients with aortic stenosis before and after TAVI.
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Affiliation(s)
- M A Shariya
- Myasnikov Institute of Clinical Cardiology, National Medical Research Center for Cardiology
| | - D V Ustyuzhanin
- Myasnikov Institute of Clinical Cardiology, National Medical Research Center for Cardiology
| | - P M Lepilin
- Myasnikov Institute of Clinical Cardiology, National Medical Research Center for Cardiology
| | - T E Imaev
- Myasnikov Institute of Clinical Cardiology, National Medical Research Center for Cardiology
| | - A E Komlev
- Myasnikov Institute of Clinical Cardiology, National Medical Research Center for Cardiology
| | - A A Belyaevskaya
- Myasnikov Institute of Clinical Cardiology, National Medical Research Center for Cardiology
| | - S K Ternovoy
- Myasnikov Institute of Clinical Cardiology, National Medical Research Center for Cardiology.,Sechenov First Moscow State Medical University (Sechenov University)
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18
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Gulsin GS, Henson J, Brady EM, Sargeant JA, Wilmot EG, Athithan L, Htike ZZ, Marsh AM, Biglands JD, Kellman P, Khunti K, Webb D, Davies MJ, Yates T, McCann GP. Cardiovascular Determinants of Aerobic Exercise Capacity in Adults With Type 2 Diabetes. Diabetes Care 2020; 43:2248-2256. [PMID: 32680830 PMCID: PMC7440912 DOI: 10.2337/dc20-0706] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 06/09/2020] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To assess the relationship between subclinical cardiac dysfunction and aerobic exercise capacity (peak VO2) in adults with type 2 diabetes (T2D), a group at high risk of developing heart failure. RESEARCH DESIGN AND METHODS Cross-sectional study. We prospectively enrolled a multiethnic cohort of asymptomatic adults with T2D and no history, signs, or symptoms of cardiovascular disease. Age-, sex-, and ethnicity-matched control subjects were recruited for comparison. Participants underwent bioanthropometric profiling, cardiopulmonary exercise testing, and cardiovascular magnetic resonance with adenosine stress perfusion imaging. Multivariable linear regression analysis was undertaken to identify independent associations between measures of cardiovascular structure and function and peak VO2. RESULTS A total of 247 adults with T2D (aged 51.8 ± 11.9 years, 55% males, 37% black or south Asian ethnicity, HbA1c 7.4 ± 1.1% [57 ± 12 mmol/mol], and duration of diabetes 61 [32-120] months) and 78 control subjects were included. Subjects with T2D had increased concentric left ventricular remodeling, reduced myocardial perfusion reserve (MPR), and markedly lower aerobic exercise capacity (peak VO2 18.0 ± 6.6 vs. 27.8 ± 9.0 mL/kg/min; P < 0.001) compared with control subjects. In a multivariable linear regression model containing age, sex, ethnicity, smoking status, and systolic blood pressure, only MPR (β = 0.822; P = 0.006) and left ventricular diastolic filling pressure (E/e') (β = -0.388; P = 0.001) were independently associated with peak VO2 in subjects with T2D. CONCLUSIONS In a multiethnic cohort of asymptomatic people with T2D, MPR and diastolic function are key determinants of aerobic exercise capacity, independent of age, sex, ethnicity, smoking status, or blood pressure.
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Affiliation(s)
- Gaurav S Gulsin
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Leicester Biomedical Research Centre, Leicester, U.K.
| | - Joseph Henson
- Diabetes Research Centre, University of Leicester and the NIHR Leicester Biomedical Research Centre, Leicester, U.K
| | - Emer M Brady
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Leicester Biomedical Research Centre, Leicester, U.K
| | - Jack A Sargeant
- Diabetes Research Centre, University of Leicester and the NIHR Leicester Biomedical Research Centre, Leicester, U.K
| | - Emma G Wilmot
- Diabetes Department, Royal Derby Hospital, University Hospitals of Derby and Burton NHS Foundation Trust, Derby, U.K
| | - Lavanya Athithan
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Leicester Biomedical Research Centre, Leicester, U.K
| | - Zin Z Htike
- Diabetes Department, Royal Derby Hospital, University Hospitals of Derby and Burton NHS Foundation Trust, Derby, U.K
| | - Anna-Marie Marsh
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Leicester Biomedical Research Centre, Leicester, U.K
| | | | - Peter Kellman
- National Heart, Lung, and Blood Institute, Bethesda, MD
| | - Kamlesh Khunti
- Diabetes Research Centre, University of Leicester and the NIHR Leicester Biomedical Research Centre, Leicester, U.K
| | - David Webb
- Diabetes Research Centre, University of Leicester and the NIHR Leicester Biomedical Research Centre, Leicester, U.K
| | - Melanie J Davies
- Diabetes Research Centre, University of Leicester and the NIHR Leicester Biomedical Research Centre, Leicester, U.K
| | - Thomas Yates
- Diabetes Research Centre, University of Leicester and the NIHR Leicester Biomedical Research Centre, Leicester, U.K
| | - Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Leicester Biomedical Research Centre, Leicester, U.K.
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19
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Singh A, Jerosch-Herold M, Bekele S, Marsh AM, McAdam J, Greenwood JP, Dawson DK, Lang CC, Berry C, Zhang R, Pakkal M, McCann GP. Determinants of Exercise Capacity and Myocardial Perfusion Reserve in Asymptomatic Patients With Aortic Stenosis. JACC Cardiovasc Imaging 2020; 13:178-180. [DOI: 10.1016/j.jcmg.2019.08.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 07/15/2019] [Accepted: 08/07/2019] [Indexed: 10/26/2022]
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20
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Abstract
Aortic stenosis is a heterogeneous disorder. Variations in the pathological and physiological responses to pressure overload are incompletely understood and generate a range of flow and pressure gradient patterns, which ultimately cause varying microvascular effects. The impact of cardiac-coronary coupling depends on these pressure and flow effects. In this article, we explore important concepts concerning cardiac physiology and the coronary microcirculation in aortic stenosis and their impact on myocardial remodeling, aortic valve flow patterns, and clinical progression.
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Affiliation(s)
- Hannah Z.R. McConkey
- Cardiovascular Division, King’s College London British Heart Foundation Centre of Excellence, The Rayne Institute, St. Thomas’ Hospital Campus, London, United Kingdom (H.Z.R.M., M.M., A.C., S.R.R., B.D.P.)
| | - Michael Marber
- Cardiovascular Division, King’s College London British Heart Foundation Centre of Excellence, The Rayne Institute, St. Thomas’ Hospital Campus, London, United Kingdom (H.Z.R.M., M.M., A.C., S.R.R., B.D.P.)
| | - Amedeo Chiribiri
- Cardiovascular Division, King’s College London British Heart Foundation Centre of Excellence, The Rayne Institute, St. Thomas’ Hospital Campus, London, United Kingdom (H.Z.R.M., M.M., A.C., S.R.R., B.D.P.)
| | - Philippe Pibarot
- Department of Medicine, Institut Universitaire de Cardiologie et de Pneumologie de Québec/Québec Heart and Lung Institute, Laval University, Québec, Canada (P.P.)
| | - Simon R. Redwood
- Cardiovascular Division, King’s College London British Heart Foundation Centre of Excellence, The Rayne Institute, St. Thomas’ Hospital Campus, London, United Kingdom (H.Z.R.M., M.M., A.C., S.R.R., B.D.P.)
| | - Bernard D. Prendergast
- Cardiovascular Division, King’s College London British Heart Foundation Centre of Excellence, The Rayne Institute, St. Thomas’ Hospital Campus, London, United Kingdom (H.Z.R.M., M.M., A.C., S.R.R., B.D.P.)
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21
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Gulsin GS, Kanagala P, Chan DCS, Cheng ASH, Athithan L, Graham-Brown MPM, Singh A, Yang J, Li Z, Khunti K, Davies MJ, Arnold JR, Squire IB, Ng LL, McCann GP. Differential left ventricular and left atrial remodelling in heart failure with preserved ejection fraction patients with and without diabetes. Ther Adv Endocrinol Metab 2019; 10:2042018819861593. [PMID: 31308926 PMCID: PMC6613057 DOI: 10.1177/2042018819861593] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 05/20/2019] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Attempts to characterize cardiac structure in heart failure with preserved ejection fraction (HFpEF) in people with type 2 diabetes (T2D) have yielded inconsistent findings. We aimed to determine whether patients with HFpEF and T2D have a distinct pattern of cardiac remodelling compared with those without diabetes and whether remodelling was related to circulating markers of inflammation and fibrosis and clinical outcomes. METHODS We recruited 140 patients with HFpEF (75 with T2D and 65 without). Participants underwent comprehensive cardiovascular phenotyping, including echocardiography, cardiac magnetic resonance imaging and plasma biomarker profiling. RESULTS Patients with T2D were younger (age 70 ± 9 versus 75 ± 9y, p = 0.002), with evidence of more left ventricular (LV) concentric remodelling (LV mass/volume ratio 0.72 ± 0.15 versus 0.62 ± 0.16, p = 0.024) and smaller indexed left atrial (LA) volumes (maximal LA volume index 48 ± 20 versus 59 ± 29 ml/m2, p = 0.004) than those without diabetes. Plasma biomarkers of inflammation and extracellular matrix remodelling were elevated in those with T2D. Overall, there were 45 hospitalizations for HF and 22 deaths over a median follow-up period of 47 months [interquartile range (IQR) 38-54]. There was no difference in the primary composite endpoint of hospitalization for HF and mortality between groups. On multivariable Cox regression analysis, age, prior HF hospitalization, history of pulmonary disease and LV mass/volume were independent predictors of the primary endpoint. CONCLUSIONS Patients with HFpEF and T2D have increased concentric LV remodelling, smaller LA volumes and evidence of increased systemic inflammation compared with those without diabetes. This suggests the underlying pathophysiology for the development of HFpEF is different in patients with and without T2D. CLINICALTRIALSGOV IDENTIFIER NCT03050593.
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Affiliation(s)
- Gaurav S. Gulsin
- Department of Cardiovascular Sciences, University of Leicester and the Leicester National Institute for Health Research (NIHR) Biomedical Research Centre, Leicester, UK
| | - Prathap Kanagala
- Department of Cardiovascular Sciences, University of Leicester and the Leicester National Institute for Health Research (NIHR) Biomedical Research Centre, Leicester, UK
| | - Daniel C. S. Chan
- Department of Cardiovascular Sciences, University of Leicester and the Leicester National Institute for Health Research (NIHR) Biomedical Research Centre, Leicester, UK
| | | | - Lavanya Athithan
- Department of Cardiovascular Sciences, University of Leicester and the Leicester National Institute for Health Research (NIHR) Biomedical Research Centre, Leicester, UK
| | | | - Anvesha Singh
- Department of Cardiovascular Sciences, University of Leicester and the Leicester National Institute for Health Research (NIHR) Biomedical Research Centre, Leicester, UK
| | - Jing Yang
- Bristol-Myers Squibb, Princeton, NJ, USA
| | - Zhuyin Li
- Bristol-Myers Squibb, Princeton, NJ, USA
| | - Kamlesh Khunti
- Diabetes Research Centre, University of Leicester and the Leicester NIHR Biomedical Research Centre, Leicester, UK
| | - Melanie J. Davies
- Diabetes Research Centre, University of Leicester and the Leicester NIHR Biomedical Research Centre, Leicester, UK
| | - Jayanth R. Arnold
- Department of Cardiovascular Sciences, University of Leicester and the Leicester National Institute for Health Research (NIHR) Biomedical Research Centre, Leicester, UK
| | - Iain B. Squire
- Department of Cardiovascular Sciences, University of Leicester and the Leicester National Institute for Health Research (NIHR) Biomedical Research Centre, Leicester, UK
| | - Leong L. Ng
- Department of Cardiovascular Sciences, University of Leicester and the Leicester National Institute for Health Research (NIHR) Biomedical Research Centre, Leicester, UK
| | - Gerry P. McCann
- Department of Cardiovascular Sciences, University of Leicester and the Leicester NIHR Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
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22
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Graham-Brown M, Gulsin G, Parke K, Wormleighton J, Lai F, Athithan L, Arnold J, Burton J, McCann G, Singh A. A comparison of the reproducibility of two cine-derived strain software programmes in disease states. Eur J Radiol 2019; 113:51-58. [DOI: 10.1016/j.ejrad.2019.01.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 12/11/2018] [Accepted: 01/22/2019] [Indexed: 12/19/2022]
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23
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Gulsin GS, Brady EM, Swarbrick DJ, Athithan L, Henson J, Baldry E, McAdam J, Marsh AM, Parke KS, Wormleighton JV, Levelt E, Yates T, Bodicoat D, Khunti K, Davies MJ, McCann GP. Rationale, design and study protocol of the randomised controlled trial: Diabetes Interventional Assessment of Slimming or Training tO Lessen Inconspicuous Cardiovascular Dysfunction (the DIASTOLIC study). BMJ Open 2019; 9:e023207. [PMID: 30928925 PMCID: PMC6475184 DOI: 10.1136/bmjopen-2018-023207] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
INTRODUCTION Despite their young age and relatively short duration of disease, younger adults with type 2 diabetes (T2D) already have diastolic dysfunction and may be at risk of incipient heart failure. Whether weight loss or exercise training improve cardiac dysfunction in people with T2D remains to be established. METHODS AND ANALYSIS Prospective, randomised, open-label, blind endpoint trial. The primary aim of the study is to determine if diastolic function can be improved by either a meal replacement plan or a supervised exercise programme, compared with guideline-directed care. A total of 90 obese participants with T2D (aged 18-65 years), diabetes duration <12 years and not on insulin treatment will be randomised to either guideline-directed clinical care with lifestyle coaching, a low-energy meal replacement diet (average ≈810 kcal/day) or a supervised exercise programme for 12 weeks. Participants undergo glycometabolic profiling, cardiopulmonary exercise testing, echocardiography and MRI scanning to assesses cardiac structure and function and dual-energy X-ray absorptiometry scanning for body composition. Key secondary aims are to assess the effects of the interventions on glycaemic control and insulin resistance, exercise capacity, blood pressure, changes in body composition and association of favourable cardiac remodelling with improvements in weight loss, exercise capacity and glycometabolic control. ETHICS AND DISSEMINATION The study has full ethical approval, and data collection was completed in August 2018. The study results will be submitted for publication within 6 months of completion. TRIAL REGISTRATION NUMBER NCT02590822; Pre-results.
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Affiliation(s)
- Gaurav Singh Gulsin
- Department of Cardiovascular Sciences, University of Leicester and the Leicester NIHR Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Emer M Brady
- Diabetes Research Centre, University of Leicester and the Leicester NIHR Biomedical Research Centre, Leicester General Hospital, Leicester, UK
| | - Daniel J Swarbrick
- Department of Cardiovascular Sciences, University of Leicester and the Leicester NIHR Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Lavanya Athithan
- Department of Cardiovascular Sciences, University of Leicester and the Leicester NIHR Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Joseph Henson
- National College of Sport and Exercise Medicine, University of Loughborough, Loughborough, UK
| | - Emma Baldry
- Diabetes Research Centre, University of Leicester and the Leicester NIHR Biomedical Research Centre, Leicester General Hospital, Leicester, UK
| | - John McAdam
- Department of Cardiovascular Sciences, University of Leicester and the Leicester NIHR Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Anna-Marie Marsh
- Department of Cardiovascular Sciences, University of Leicester and the Leicester NIHR Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Kelly S Parke
- Department of Cardiovascular Sciences, University of Leicester and the Leicester NIHR Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Joanne V Wormleighton
- Department of Cardiovascular Sciences, University of Leicester and the Leicester NIHR Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Eylem Levelt
- University of Leeds, Multidisciplinary Cardiovascular Research Centre and Biomedical Imaging Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, Leeds, UK
| | - Thomas Yates
- Diabetes Research Centre, University of Leicester and the Leicester NIHR Biomedical Research Centre, Leicester General Hospital, Leicester, UK
- National College of Sport and Exercise Medicine, University of Loughborough, Loughborough, UK
| | - Danielle Bodicoat
- Diabetes Research Centre, University of Leicester and the Leicester NIHR Biomedical Research Centre, Leicester General Hospital, Leicester, UK
| | - Kamlesh Khunti
- Diabetes Research Centre, University of Leicester and the Leicester NIHR Biomedical Research Centre, Leicester General Hospital, Leicester, UK
| | - Melanie J Davies
- Diabetes Research Centre, University of Leicester and the Leicester NIHR Biomedical Research Centre, Leicester General Hospital, Leicester, UK
| | - Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester and the Leicester NIHR Biomedical Research Centre, Glenfield Hospital, Leicester, UK
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24
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Gulsin GS, Athithan L, McCann GP. Diabetic cardiomyopathy: prevalence, determinants and potential treatments. Ther Adv Endocrinol Metab 2019; 10:2042018819834869. [PMID: 30944723 PMCID: PMC6437329 DOI: 10.1177/2042018819834869] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 02/08/2019] [Indexed: 12/18/2022] Open
Abstract
The prevalence of type 2 diabetes (T2D) has reached a pandemic scale. These patients are at a substantially elevated risk of developing cardiovascular disease, with heart failure (HF) being a leading cause of morbidity and mortality. Even in the absence of traditional risk factors, diabetes still confers up to a twofold increased risk of developing HF. This has led to identifying diabetes as an independent risk factor for HF and recognition of the distinct clinical entity, diabetic cardiomyopathy. Despite a wealth of research interest, the prevalence and determinants of diabetic cardiomyopathy remain uncertain. This limited understanding of the pathophysiology of diabetic heart disease has also hindered development of effective treatments. Tight blood-glucose and blood-pressure control have not convincingly been shown to reduce macrovascular outcomes in T2D. There is, however, emerging evidence that T2D is reversible and that the metabolic abnormalities can be reversed with weight loss. Increased aerobic exercise capacity is associated with significantly lower cardiovascular and overall mortality in diabetes. Whether such lifestyle modifications as weight loss and exercise may ameliorate the structural and functional derangements of the diabetic heart has yet to be established. In this review, the link between T2D and myocardial dysfunction is explored. Insights into the structural and functional perturbations that typify the diabetic heart are first described. This is followed by an examination of the pathophysiological mechanisms that contribute to the development of cardiovascular disease in T2D. Lastly, the current and emerging therapeutic strategies to prevent or ameliorate cardiac dysfunction in T2D are evaluated.
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Affiliation(s)
- Gaurav S. Gulsin
- Department of Cardiovascular Sciences, University of Leicester and the Leicester NIHR Biomedical Research Centre, Leicester, UK
| | - Lavanya Athithan
- Department of Cardiovascular Sciences, University of Leicester and the Leicester NIHR Biomedical Research Centre, Leicester, UK
| | - Gerry P. McCann
- Department of Cardiovascular Sciences, University of Leicester and the Leicester NIHR Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
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25
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Gulsin GS, Abdelaty AMSEK, Shetye A, Lai FY, Bajaj A, Das I, Deshpande A, Rao PPG, Khoo J, McCann GP, Arnold JR. Haemodynamic effects of pharmacologic stress with adenosine in patients with left ventricular systolic dysfunction. Int J Cardiol 2018; 278:157-161. [PMID: 30528627 DOI: 10.1016/j.ijcard.2018.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 11/13/2018] [Accepted: 12/03/2018] [Indexed: 11/15/2022]
Abstract
BACKGROUND In patients with heart failure, downregulation of adenosine receptor gene expression and impaired adenosine-related signal transduction may result in a diminished response to adenosine. This may have implications for cardiac stress testing. We evaluated the haemodynamic response to intravenous adenosine in patients with left ventricular systolic dysfunction (LVSD) undergoing stress cardiovascular magnetic resonance imaging (CMR). METHODS AND RESULTS We retrospectively examined 497 consecutive patients referred for clinical stress CMR. Blood pressure and heart rate responses with intravenous adenosine were compared in patients with normal, mild-moderately impaired and severely impaired LV systolic function (ejection fraction [EF] > 55%, 36-55% and < 35%, respectively). Following 2 min of adenosine infusion, there was a significant difference between the groups in the heart rate change from baseline, with a diminished heart rate response in patients with LVSD (p < 0.001). An increase in the dose of adenosine (up to 210 μg/kg/min) was required to achieve a sufficient haemodynamic response in more patients with severe LVSD (41%) than those with mild-moderately impaired and normal LV systolic function (24% and 19%, respectively, p < 0.001). Even with increased doses of adenosine in subjects with severe LVSD, peak haemodynamic response remained blunted. With multivariate analysis age (p < 0.001) and LVEF (p = 0.031) were independent predictors of heart rate response to adenosine. CONCLUSION Patients with reduced LVEF referred for stress CMR may have a blunted heart rate response to adenosine. Further study is warranted to determine whether this may be associated with reduced diagnostic accuracy and also the potential utility of further dose increases or alternative stressors.
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Affiliation(s)
- Gaurav S Gulsin
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
| | - Ahmed M S E K Abdelaty
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
| | - Abhishek Shetye
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
| | - Florence Y Lai
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
| | - Amrita Bajaj
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
| | - Indrajeet Das
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
| | - Aparna Deshpande
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
| | - Praveen P G Rao
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
| | - Jeffrey Khoo
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
| | - Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
| | - Jayanth R Arnold
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK.
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Cha MJ, Kim SM, Kim HS, Kim Y, Choe YH. Association of cardiovascular risk factors on myocardial perfusion and fibrosis in asymptomatic individuals: cardiac magnetic resonance study. Acta Radiol 2018; 59:1300-1308. [PMID: 29433344 DOI: 10.1177/0284185118757274] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Myocardial perfusion reserve index (MPRI) and extracellular volume fraction (ECV) on cardiac magnetic resonance (CMR) are known to quantify coronary microvascular dysfunction and myocardial fibrosis, respectively. Purpose To demonstrate that cardiovascular risk factors such as hypertension, diabetes, hyperlipidemia, and smoking are correlated with MPRI and ECV on CMR in asymptomatic individuals. Material and Methods Between October 2013 and July 2014, 196 individuals underwent CMR. After excluding those with chest pain, arrhythmia, and obstructive coronary artery disease, participants were divided into five groups: those without risk factor (n = 26) and those with one (n = 43), two (n = 35), three (n = 24), or four (n = 6) risk factors. MPRI and ECV were obtained on perfusion CMR and pre- and post-T1 mapping, respectively. Results A total of 134 asymptomatic individuals (109 men, 25 women; mean age = 54.4 ± 7.08 years; body mass index [BMI] = 24.96 ± 2.76 kg/m2; Framingham risk score [FRS] = 7.71 ± 5.21) were included. The Jonckheere-Terpstra test demonstrated trends of increasing BMI, FRS, and left ventricular mass index (all P values < 0.001), but decreasing MPRI ( P = 0.001) with increasing numbers of risk factors. Stepwise multiple linear regression demonstrated that an increasing number of cardiovascular risk factors was an independent predictor of MPRI ( P = 0.001). However, there was no significant association between the number of risk factors and ECV ( P = 0.99). Conclusion We demonstrated that an increasing number of cardiovascular risk factors is significantly associated with reduced MPRI, but not with ECV on CMR.
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Affiliation(s)
- Min Jae Cha
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Currently, Department of Radiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Sung Mok Kim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Cardiovascular Imaging Center, Heart Vascular and Stroke Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - Hyun Su Kim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Yiseul Kim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Yeon Hyeon Choe
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Cardiovascular Imaging Center, Heart Vascular and Stroke Institute, Samsung Medical Center, Seoul, Republic of Korea
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27
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Affiliation(s)
- Anvesha Singh
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK.,NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK.,NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, UK
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28
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Saxena A, Sabharwal N, Topi B, Crooke G. Cardiac arrest due to critical stenosis of a bicuspid aortic valve mimicking left main coronary artery occlusion on ECG. BMJ Case Rep 2018; 2018:bcr-2018-225307. [PMID: 30287626 DOI: 10.1136/bcr-2018-225307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
A 49-year-old man presented to the emergency room after a cardiac arrest. On arrival, the patient's ECG showed ST-segment elevations in the aVR and anteroseptal leads with diffuse ST depression suggestive of left main coronary artery occlusion. Subsequent coronary catheterisation showed normal coronaries but revealed severe stenosis of his bicuspid aortic valve. A surgical replacement of the aortic valve was performed, and the patient recovered successfully.
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Affiliation(s)
- Abhinav Saxena
- Department of Cardiology, Maimonides Medical Center, Brooklyn, New York, USA
| | - Nitin Sabharwal
- Department of Cardiology, Maimonides Medical Center, Brooklyn, New York, USA
| | - Bernard Topi
- Department of Cardiology, Maimonides Medical Center, Brooklyn, New York, USA
| | - Gregory Crooke
- Department of Cardiology, Maimonides Medical Center, Brooklyn, New York, USA
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29
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Gulsin GS, Swarbrick DJ, Hunt WH, Levelt E, Graham-Brown MPM, Parke KS, Wormleighton JV, Lai FY, Yates T, Wilmot EG, Webb DR, Davies MJ, McCann GP. Relation of Aortic Stiffness to Left Ventricular Remodeling in Younger Adults With Type 2 Diabetes. Diabetes 2018; 67:1395-1400. [PMID: 29661781 DOI: 10.2337/db18-0112] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 04/09/2018] [Indexed: 11/13/2022]
Abstract
Individuals with type 2 diabetes have a three- to fivefold increased risk of developing heart failure. Diabetic cardiomyopathy is typified by left ventricular (LV) concentric remodeling, which is a recognized predictor of adverse cardiovascular events. Although the mechanisms underlying LV remodeling in type 2 diabetes are unclear, progressive aortic stiffening may be a key determinant. The aim of this study was to assess the relationship between aortic stiffness and LV geometry in younger adults with type 2 diabetes, using multiparametric cardiovascular MRI. We prospectively recruited 80 adults (aged 18-65 years) with type 2 diabetes and no cardiovascular disease and 20 age- and sex-matched healthy control subjects. All subjects underwent comprehensive bio-anthropometric assessment and cardiac MRI, including measurement of aortic stiffness by aortic distensibility (AD). Type 2 diabetes was associated with increased LV mass, concentric LV remodeling, and lower AD compared with control subjects. On multivariable linear regression, AD was independently associated with concentric LV remodeling in type 2 diabetes. Aortic stiffness may therefore be a potential therapeutic target to prevent the development of heart failure in type 2 diabetes.
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Affiliation(s)
- Gaurav S Gulsin
- Department of Cardiovascular Sciences, University of Leicester and Leicester National Institute for Health Research Biomedical Research Centre, Glenfield Hospital, Leicester, U.K
| | - Daniel J Swarbrick
- Department of Cardiovascular Sciences, University of Leicester and Leicester National Institute for Health Research Biomedical Research Centre, Glenfield Hospital, Leicester, U.K
| | - William H Hunt
- Department of Cardiovascular Sciences, University of Leicester and Leicester National Institute for Health Research Biomedical Research Centre, Glenfield Hospital, Leicester, U.K
| | - Eylem Levelt
- Department of Cardiovascular Sciences, University of Leicester and Leicester National Institute for Health Research Biomedical Research Centre, Glenfield Hospital, Leicester, U.K
| | | | - Kelly S Parke
- Department of Cardiovascular Sciences, University of Leicester and Leicester National Institute for Health Research Biomedical Research Centre, Glenfield Hospital, Leicester, U.K
| | - Joanne V Wormleighton
- Department of Cardiovascular Sciences, University of Leicester and Leicester National Institute for Health Research Biomedical Research Centre, Glenfield Hospital, Leicester, U.K
| | - Florence Y Lai
- Department of Cardiovascular Sciences, University of Leicester and Leicester National Institute for Health Research Biomedical Research Centre, Glenfield Hospital, Leicester, U.K
| | - Thomas Yates
- National Centre of Sport and Exercise Medicine, University of Loughborough, Loughborough, U.K
| | - Emma G Wilmot
- Department of Endocrinology and Diabetes, Royal Derby Hospital, Derby, U.K
| | - David R Webb
- Diabetes Research Centre, University of Leicester and Leicester National Institute for Health Research Biomedical Research Centre, Leicester General Hospital, Leicester, U.K
| | - Melanie J Davies
- Diabetes Research Centre, University of Leicester and Leicester National Institute for Health Research Biomedical Research Centre, Leicester General Hospital, Leicester, U.K
| | - Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester and Leicester National Institute for Health Research Biomedical Research Centre, Glenfield Hospital, Leicester, U.K.
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30
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Singh A, Greenwood JP, Berry C, Dawson DK, Hogrefe K, Kelly DJ, Dhakshinamurthy V, Lang CC, Khoo JP, Sprigings D, Steeds RP, Jerosch-Herold M, Neubauer S, Prendergast B, Williams B, Zhang R, Hudson I, Squire IB, Ford I, Samani NJ, McCann GP. Comparison of exercise testing and CMR measured myocardial perfusion reserve for predicting outcome in asymptomatic aortic stenosis: the PRognostic Importance of MIcrovascular Dysfunction in Aortic Stenosis (PRIMID AS) Study. Eur Heart J 2018; 38:1222-1229. [PMID: 28204448 DOI: 10.1093/eurheartj/ehx001] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 01/16/2017] [Indexed: 01/19/2023] Open
Abstract
Aims To assess cardiovascular magnetic resonance (CMR) measured myocardial perfusion reserve (MPR) and exercise testing in asymptomatic patients with moderate-severe AS. Methods and results Multi-centre, prospective, observational study, with blinded analysis of CMR data. Patients underwent adenosine stress CMR, symptom-limited exercise testing (ETT) and echocardiography and were followed up for 12-30 months. The primary outcome was a composite of: typical AS symptoms necessitating referral for AVR, cardiovascular death and major adverse cardiovascular events. 174 patients were recruited: mean age 66.2 ± 13.34 years, 76% male, peak velocity 3.86 ± 0.56 m/s and aortic valve area index 0.57 ± 0.14 cm2/m2. A primary outcome occurred in 47 (27%) patients over a median follow-up of 374 (IQR 351-498) days. The mean MPR in those with and without a primary outcome was 2.06 ± 0.65 and 2.34 ± 0.70 (P = 0.022), while the incidence of a symptom-limited ETT was 45.7% and 27.0% (P = 0.020), respectively. MPR showed moderate association with outcome area under curve (AUC) = 0.61 (0.52-0.71, P = 0.020), as did exercise testing (AUC = 0.59 (0.51-0.68, P = 0.027), with no significant difference between the two. Conclusions MPR was associated with symptom-onset in initially asymptomatic patients with AS, but with moderate accuracy and was not superior to symptom-limited exercise testing. ClinicalTrials.gov (NCT01658345).
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Affiliation(s)
- Anvesha Singh
- Department of Cardiovascular Sciences, University of Leicester and NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Groby road, Leicester, LE3 9QP, UK
| | - John P Greenwood
- Multidisciplinary Cardiovascular Research Centre & The Division of Cardiovascular and Diabetes Research, Leeds Institute of Genetics, Health & Therapeutics, Leeds University, Leeds, LS2 9JT, UK
| | - Colin Berry
- BHF Glasgow Cardiovascular Research Centre, University of Glasgow, 126 University Place, Glasgow, G12 8TA, UK
| | - Dana K Dawson
- Cardiovascular Medicine Research Unit, School of Medicine and Dentistry, University of Aberdeen, Polwarth Building, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Kai Hogrefe
- Cardiology department, Kettering General Hospital Foundation Trust, Rothwell Rd, Kettering NN16 8UZ, UK
| | - Damian J Kelly
- Cardiology department, Royal Derby Hospital, Uttoxeter Rd, Derby DE22 3NE, UK
| | - Vijay Dhakshinamurthy
- Cardiology department, University Hospital, Clifford Bridge Rd, Coventry CV2 2DX, UK
| | - Chim C Lang
- Division of Cardiovascular and Diabetes Medicine, Ninewells Hospital and Medical School, Dundee DD1 9SY, UK
| | - Jeffrey P Khoo
- Cardiology department, Grantham and district hospital, 101 Manthorpe Rd, Grantham NG31 8DG, UK
| | - David Sprigings
- Northampton General Hospital, Cliftonville, Northampton NN1 5BD, UK
| | - Richard P Steeds
- Cardiovascular Medicine, Queen Elizabeth Hospital, Mindelsohn Way, Birmingham B15 2TH, UK
| | - Michael Jerosch-Herold
- Brigham and Woman s Hospital and Harvard Medical School, 75 Francis St, Boston, Massachusetts 02115, USA
| | - Stefan Neubauer
- Department of Cardiovascular Sciences, University of Oxford, Level 6 West Wing, John Radcliffe Hospital, Headington, Oxford, OX3 9DU, UK
| | - Bernard Prendergast
- Department of Cardiovascular Sciences, University of Oxford, Level 6 West Wing, John Radcliffe Hospital, Headington, Oxford, OX3 9DU, UK
| | - Bryan Williams
- Department of Cardiovascular Sciences, University College London, Gower St, Kings Cross, London WC1E 6BT, UK
| | - Ruiqi Zhang
- Roberston Centre for Bisotatistics, University of Glasgow, Level 11, Boyd Orr Building, University Avenue, Glasgow G12 8QQ, UK
| | - Ian Hudson
- Cardiology department, Glenfield Hospital, Groby road, Leicester LE3 9QP, UK
| | - Iain B Squire
- Department of Cardiovascular Sciences, University of Leicester and NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Groby road, Leicester, LE3 9QP, UK
| | - Ian Ford
- Roberston Centre for Bisotatistics, University of Glasgow, Level 11, Boyd Orr Building, University Avenue, Glasgow G12 8QQ, UK
| | - Nilesh J Samani
- Department of Cardiovascular Sciences, University of Leicester and NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Groby road, Leicester, LE3 9QP, UK
| | - Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester and NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Groby road, Leicester, LE3 9QP, UK
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McCann GP, Singh A. Revisiting Reverse Remodeling After Aortic Valve Replacement for Aortic Stenosis. J Am Coll Cardiol 2018; 71:872-874. [PMID: 29471938 DOI: 10.1016/j.jacc.2017.12.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 12/05/2017] [Indexed: 11/17/2022]
Affiliation(s)
- Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester, Leicester, United Kingdom; National Institute for Health Research Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, United Kingdom.
| | - Anvesha Singh
- Department of Cardiovascular Sciences, University of Leicester, Leicester, United Kingdom; National Institute for Health Research Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, United Kingdom
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Kanagala P, Cheng ASH, Singh A, McAdam J, Marsh AM, Arnold JR, Squire IB, Ng LL, McCann GP. Diagnostic and prognostic utility of cardiovascular magnetic resonance imaging in heart failure with preserved ejection fraction - implications for clinical trials. J Cardiovasc Magn Reson 2018; 20:4. [PMID: 29321034 PMCID: PMC5763769 DOI: 10.1186/s12968-017-0424-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 12/14/2017] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Heart failure with preserved ejection fraction (HFpEF) is a poorly characterized condition. We aimed to phenotype patients with HFpEF using multiparametric stress cardiovascular magnetic resonance imaging (CMR) and to assess the relationship to clinical outcomes. METHODS One hundred and fifty four patients (51% male, mean age 72 ± 10 years) with a diagnosis of HFpEF underwent transthoracic echocardiography and CMR during a single study visit. The CMR protocol comprised cine, stress/rest perfusion and late gadolinium enhancement imaging on a 3T scanner. Follow-up outcome data (death and heart failure hospitalization) were captured after a minimum of 6 months. RESULTS CMR detected previously undiagnosed pathology in 42 patients (27%), who had similar baseline characteristics to those without a new diagnosis. These diagnoses consisted of: coronary artery disease (n = 20, including 14 with 'silent' infarction), microvascular dysfunction (n = 11), probable or definite hypertrophic cardiomyopathy (n = 10) and constrictive pericarditis (n = 5). Four patients had dual pathology. During follow-up (median 623 days), patients with a new CMR diagnosis were at higher risk of adverse outcome for the composite endpoint (log rank test: p = 0.047). In multivariate Cox proportional hazards analysis, a new CMR diagnosis was the strongest independent predictor of adverse outcome (hazard ratio: 1.92; 95% CI: 1.07 to 3.45; p = 0.03). CONCLUSIONS CMR diagnosed new significant pathology in 27% of patients with HFpEF. These patients were at increased risk of death and heart failure hospitalization. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT03050593 . Retrospectively registered; Date of registration: February 06, 2017.
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Affiliation(s)
- Prathap Kanagala
- Department of Cardiovascular Sciences and National Institute for Health Research (NIHR), University of Leicester, Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Groby Road, Leicester, LE3 9QP UK
| | - Adrian S. H. Cheng
- Department of Cardiovascular Sciences and National Institute for Health Research (NIHR), University of Leicester, Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Groby Road, Leicester, LE3 9QP UK
- Kettering General Hospital, Kettering, UK
- National Institute for Health Research (NIHR) Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
| | - Anvesha Singh
- Department of Cardiovascular Sciences and National Institute for Health Research (NIHR), University of Leicester, Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Groby Road, Leicester, LE3 9QP UK
| | - John McAdam
- Department of Cardiovascular Sciences and National Institute for Health Research (NIHR), University of Leicester, Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Groby Road, Leicester, LE3 9QP UK
| | - Anna-Marie Marsh
- Department of Cardiovascular Sciences and National Institute for Health Research (NIHR), University of Leicester, Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Groby Road, Leicester, LE3 9QP UK
| | - Jayanth R. Arnold
- Department of Cardiovascular Sciences and National Institute for Health Research (NIHR), University of Leicester, Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Groby Road, Leicester, LE3 9QP UK
| | - Iain B. Squire
- Department of Cardiovascular Sciences and National Institute for Health Research (NIHR), University of Leicester, Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Groby Road, Leicester, LE3 9QP UK
- Department of Cardiovascular Sciences and National Institute for Health Research (NIHR), University of Leicester, Leicester Cardiovascular Biomedical Research Unit, Cardiovascular Medicine, Glenfield Hospital, Leicester, UK
| | - Leong L. Ng
- Department of Cardiovascular Sciences and National Institute for Health Research (NIHR), University of Leicester, Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Groby Road, Leicester, LE3 9QP UK
- Department of Cardiovascular Sciences and National Institute for Health Research (NIHR), Medicine and Therapeutics, University of Leicester, Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
| | - Gerry P. McCann
- Department of Cardiovascular Sciences and National Institute for Health Research (NIHR), University of Leicester, Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Groby Road, Leicester, LE3 9QP UK
- Department of Cardiovascular Sciences and National Institute for Health Research (NIHR), Cardiac Imaging, University of Leicester, Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
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Singh A, Chan DCS, Greenwood JP, Dawson DK, Sonecki P, Hogrefe K, Kelly DJ, Dhakshinamurthy V, Lang CC, Khoo JP, Sprigings D, Steeds RP, Zhang R, Ford I, Jerosch-Herold M, Yang J, Li Z, Ng LL, McCann GP. Symptom Onset in Aortic Stenosis: Relation to Sex Differences in Left Ventricular Remodeling. JACC Cardiovasc Imaging 2017; 12:96-105. [PMID: 29248646 DOI: 10.1016/j.jcmg.2017.09.019] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 09/18/2017] [Accepted: 09/21/2017] [Indexed: 11/27/2022]
Abstract
OBJECTIVES The aim of this study was to establish sex differences in remodeling and outcome in aortic stenosis (AS) and their associations with biomarkers of myocardial fibrosis. BACKGROUND The remodeling response and timing of symptoms is highly variable in AS, and sex plays an important role. METHODS A total of 174 patients (133 men, mean age 66.2 ± 13.3 years) with asymptomatic moderate to severe AS underwent comprehensive stress cardiac magnetic resonance imaging, transthoracic echocardiography, and biomarker analysis (matrix metalloproteinase [MMP]-2, -3, -7, -8, and -9; tissue inhibitor matrix metalloproteinases-1 and -4; syndecan-1 and -4; and N-terminal pro-B-type natriuretic peptide), and were followed up at 6-month intervals. A primary endpoint was a composite of typical AS symptoms necessitating referral for aortic valve replacement, cardiovascular death, or major adverse cardiovascular events. RESULTS For a similar severity of AS, male patients demonstrated higher indexed left ventricular (LV) volumes and mass, more concentric remodeling (higher LV mass/volume), a trend to more late gadolinium enhancement (present in 51.1% men vs. 34.1% women; p = 0.057), and higher extracellular volume index than female patients (13.27 [interquartile range (IQR): 11.5 to 17.0] vs. 11.53 [IQR: 10.5 to 13.5] ml/m2, p = 0.017), with worse systolic and diastolic function and higher MMP-3 and syndecan-4 levels, whereas female patients had higher septal E/e'. Male sex was independently associated with indexed LV mass (β = 13.32 [IQR: 9.59 to 17.05]; p < 0.001). During median follow-up of 374 (IQR: 351 to 498) days, a primary outcome, driven by spontaneous symptom onset, occurred in 21.8% of male and 43.9% of female patients (relative risk: 0.50 [95% confidence interval: 0.31 to 0.80]; p = 0.004). Measures of AS severity were associated with the primary outcome in both sexes, whereas N-terminal pro-B-type natriuretic peptide, MMP-3, and mass/volume were only associated in men. CONCLUSIONS In AS, women tolerate pressure overload with less concentric remodeling and myocardial fibrosis but are more likely to develop symptoms. This may be related to higher wall stress and filling pressures in women.
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Affiliation(s)
- Anvesha Singh
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, United Kingdom.
| | - Daniel C S Chan
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, United Kingdom
| | - John P Greenwood
- Multidisciplinary Cardiovascular Research Centre & The Division of Biomedical Imaging, Leeds Institute of Cardiovascular & Metabolic Medicine, Leeds University, Leeds, United Kingdom
| | - Dana K Dawson
- Cardiovascular Medicine Research Unit, School of Medicine and Dentistry, University of Aberdeen, Foresterhill, Aberdeen, United Kingdom
| | - Piotr Sonecki
- BHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, United Kingdom
| | - Kai Hogrefe
- Cardiology Department, Kettering General Hospital Foundation Trust, Kettering, United Kingdom
| | - Damian J Kelly
- Cardiology Department, Royal Derby Hospital, Derby, United Kingdom
| | | | - Chim C Lang
- Division of Molecular and Clinical Medicine, Ninewells Hospital and Medical School, Dundee, United Kingdom
| | - Jeffery P Khoo
- Cardiology Department, Glenfield Hospital, Leicester, United Kingdom
| | - David Sprigings
- Northampton General Hospital, Cliftonville, Northampton, United Kingdom
| | - Richard P Steeds
- Institute for Cardiovascular Sciences, University of Birmingham, Department of Cardiology, Queen Elizabeth Hospital, Birmingham, United Kingdom
| | - Ruiqi Zhang
- Roberston Centre for Bisotatistics, University of Glasgow, Glasgow, United Kingdom
| | - Ian Ford
- Roberston Centre for Bisotatistics, University of Glasgow, Glasgow, United Kingdom
| | | | - Jing Yang
- Bristol-Myers Squibb Company, Princeton, New Jersey
| | - Zhuyin Li
- Bristol-Myers Squibb Company, Princeton, New Jersey
| | - Leong L Ng
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, United Kingdom
| | - Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, United Kingdom
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Abstract
Aortic stenosis (AS) is the most common primary valve disorder in the elderly with an increasing prevalence. It is increasingly clear that it is also a disease of the left ventricle (LV) rather than purely the aortic valve. The transition from left ventricular hypertrophy to fibrosis results in the eventual adverse effects on systolic and diastolic function. Appropriate selection of patients for aortic valve intervention is crucial, and current guidelines recommend aortic valve replacement in severe AS with symptoms or in asymptomatic patients with left ventricular ejection fraction (LVEF) <50 %. LVEF is not a sensitive marker and there are other parameters used in multimodality imaging techniques, including longitudinal strain, exercise stress echo and cardiac MRI that may assist in detecting subclinical and subtle LV dysfunction. These findings offer potentially better ways to evaluate patients, time surgery, predict recovery and potentially offer targets for specific therapies. This article outlines the pathophysiology behind the LV response to aortic stenosis and the role of advanced multimodality imaging in describing it.
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Kotronias RA, Kwok CS, George S, Capodanno D, Ludman PF, Townend JN, Doshi SN, Khogali SS, Généreux P, Herrmann HC, Mamas MA, Bagur R. Transcatheter Aortic Valve Implantation With or Without Percutaneous Coronary Artery Revascularization Strategy: A Systematic Review and Meta-Analysis. J Am Heart Assoc 2017; 6:e005960. [PMID: 28655733 PMCID: PMC5669191 DOI: 10.1161/jaha.117.005960] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 05/03/2017] [Indexed: 12/26/2022]
Abstract
BACKGROUND Recent recommendations suggest that in patients with severe aortic stenosis undergoing transcatheter aortic valve implantation and coexistent significant coronary artery disease, the latter should be treated before the index procedure; however, the evidence basis for such an approach remains limited. We performed a systematic review and meta-analysis to study the clinical outcomes of patients with coronary artery disease who did or did not undergo revascularization prior to transcatheter aortic valve implantation. METHODS AND RESULTS We conducted a search of Medline and Embase to identify studies evaluating patients who underwent transcatheter aortic valve implantation with or without percutaneous coronary intervention. Random-effects meta-analyses with the inverse variance method were used to estimate the rate and risk of adverse outcomes. Nine studies involving 3858 participants were included in the meta-analysis. Patients who underwent revascularization with percutaneous coronary intervention had a higher rate of major vascular complications (odd ratio [OR]: 1.86; 95% confidence interval [CI], 1.33-2.60; P=0.0003) and higher 30-day mortality (OR: 1.42; 95% CI, 1.08-1.87; P=0.01). There were no differences in effect estimates for 30-day cardiovascular mortality (OR: 1.03; 95% CI, 0.35-2.99), myocardial infarction (OR: 0.86; 95% CI, 0.14-5.28), acute kidney injury (OR: 0.89; 95% CI, 0.42-1.88), stroke (OR: 1.07; 95% CI, 0.38-2.97), or 1-year mortality (OR: 1.05; 95% CI, 0.71-1.56). The timing of percutaneous coronary intervention (same setting versus a priori) did not negatively influence outcomes. CONCLUSIONS Our analysis suggests that revascularization before transcatheter aortic valve implantation confers no clinical advantage with respect to several patient-important clinical outcomes and may be associated with an increased risk of major vascular complications and 30-day mortality. In the absence of definitive evidence, careful evaluation of patients on an individual basis is of paramount importance to identify patients who might benefit from elective revascularization.
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Affiliation(s)
- Rafail A Kotronias
- Keele Cardiovascular Research Group, Institute for Applied Clinical Science and Centre for Prognosis Research, Institute of Primary Care and Health Sciences, University of Keele, Stoke-on-Trent, United Kingdom
- Oxford University Clinical Academic Graduate School, Oxford University, Oxford, United Kingdom
| | - Chun Shing Kwok
- Keele Cardiovascular Research Group, Institute for Applied Clinical Science and Centre for Prognosis Research, Institute of Primary Care and Health Sciences, University of Keele, Stoke-on-Trent, United Kingdom
- The Heart Centre, Royal Stoke Hospital, University Hospital of North Midlands Trust, Stoke-on-Trent, United Kingdom
| | - Sudhakar George
- Keele Cardiovascular Research Group, Institute for Applied Clinical Science and Centre for Prognosis Research, Institute of Primary Care and Health Sciences, University of Keele, Stoke-on-Trent, United Kingdom
- The Heart Centre, Royal Stoke Hospital, University Hospital of North Midlands Trust, Stoke-on-Trent, United Kingdom
| | - Davide Capodanno
- Cardio-Thoracic-Vascular Department, Ferrarotto Hospital University of Catania, Italy
| | - Peter F Ludman
- Department of Cardiology, Queen Elizabeth Hospital Birmingham, Birmingham, United Kingdom
| | - Jonathan N Townend
- Department of Cardiology, Queen Elizabeth Hospital Birmingham, Birmingham, United Kingdom
| | - Sagar N Doshi
- Department of Cardiology, Queen Elizabeth Hospital Birmingham, Birmingham, United Kingdom
| | - Saib S Khogali
- The Heart and Lung Centre, New Cross Hospital, Wolverhampton, United Kingdom
| | - Philippe Généreux
- Cardiovascular Research Foundation, New York, NY
- Columbia University Medical Center/New York-Presbyterian Hospital, New York, NY
- Morristown Medical Center, Morristown, NJ
| | - Howard C Herrmann
- Cardiology Division, Department of Medicine, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA
| | - Mamas A Mamas
- Keele Cardiovascular Research Group, Institute for Applied Clinical Science and Centre for Prognosis Research, Institute of Primary Care and Health Sciences, University of Keele, Stoke-on-Trent, United Kingdom
- The Heart Centre, Royal Stoke Hospital, University Hospital of North Midlands Trust, Stoke-on-Trent, United Kingdom
| | - Rodrigo Bagur
- Keele Cardiovascular Research Group, Institute for Applied Clinical Science and Centre for Prognosis Research, Institute of Primary Care and Health Sciences, University of Keele, Stoke-on-Trent, United Kingdom
- Division of Cardiology, Department of Medicine, London Health Sciences Centre, London, Ontario, Canada
- Department of Epidemiology and Biostatistics, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
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37
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Meimoun P, Czitrom D, Clerc J, Seghezzi JC, Martis S, Berrebi A, Elmkies F. Noninvasive Coronary Flow Reserve Predicts Response to Exercise in Asymptomatic Severe Aortic Stenosis. J Am Soc Echocardiogr 2017; 30:736-744. [PMID: 28599829 DOI: 10.1016/j.echo.2017.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Indexed: 01/09/2023]
Abstract
BACKGROUND In patients with asymptomatic aortic stenosis (AS), exercise stress echocardiography (ESE) provides additional prognostic information beyond baseline. The coronary flow velocity reserve (CFVR) is impaired in AS, but its link with exertion is unknown in this setting. The aim of this study was to test the hypothesis that CFVR could predict exercise capacity and abnormal exercise test results in AS. METHODS Noninvasive CFVR and symptom-limited semisupine ESE were prospectively performed the same day in 43 patients with asymptomatic isolated severe AS (mean age, 68.5 ± 11 years; 26% women; mean aortic valve area, 0.8 ± 0.16 cm2; mean left ventricular ejection fraction, 70 ± 7%). CFVR was performed in the distal part of the left anterior descending coronary artery using intravenous adenosine infusion (140 μg/kg/min over 2 min), and ESE was performed at an initial workload of 25 W with a 20- to 25-W increase at 2-min intervals. An abnormal result on ESE was defined as onset of symptoms at <75% of maximum predicted workload, electrocardiographic ST-segment depression ≥2 mm during exercise, increase of systolic blood pressure < 20 mm Hg or decrease in blood pressure, and complex ventricular arrhythmia. Seventeen patients with isolated severe asymptomatic AS, unable to exercise because of extracardiac conditions, served as a comparative group. RESULTS Resting, hyperemic left anterior descending coronary artery flow velocity and CFVR (2.45 ± 0.8 vs 2.4 ± 0.8) were similar between the group unable to perform ESE and the ESE group (P = NS for all). Compared with patients with normal results on ESE, those with abnormal results on ESE (n = 22) were older, had higher E/e' ratios, had higher resting left anterior descending coronary artery flow velocities (39 ± 12 vs 31 ± 8 cm/sec), and had lower CFVR (2.01 ± 0.3 vs 2.85 ± 0.7; P < .01 for all). Furthermore, CFVR was significantly correlated with age, changes in transvalvular pressure gradient and left ventricular ejection fraction with exercise, workload (in watts), and exercise duration (P < .05 for all). After adjusting for other variables, CFVR remained independently correlated with exercise duration, workload, and abnormal results on ESE (P < .01 for all). On receiver operating characteristic curve analysis, CFVR < 2.3 was the best cutoff to predict abnormal results on ESE (area under the curve = 0.88 ± 0.06, P < .01). CONCLUSIONS In patients with asymptomatic severe AS, noninvasive CFVR is correlated with exercise duration and workload, and low CFVR predicts abnormal results on ESE with good accuracy.
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Affiliation(s)
- Patrick Meimoun
- Department of Cardiology, Compiègne Hospital, Compiègne, France.
| | - Daniel Czitrom
- Department of Cardiology, Institut Mutualiste Montsouris, Paris, France
| | - Jérome Clerc
- Department of Cardiology, Compiègne Hospital, Compiègne, France
| | | | - Sonia Martis
- Department of Cardiology, Compiègne Hospital, Compiègne, France
| | - Alain Berrebi
- Department of Cardiology, Institut Mutualiste Montsouris, Paris, France
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38
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Banovic MD. NT-proBNP in patients with asymptomatic severe aortic stenosis: relation to coronary microvascular function. Biomark Med 2017. [DOI: 10.2217/bmm-2017-0083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Marko D Banovic
- Department of Non-Invasive Cardiology, Cardiology Clinic, University Clinical Centre of Serbia; Belgrade Medical School, Belgrade, Serbia
- Belgrade Medical School, University of Belgrade, Serbia
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39
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Lancellotti P, Nchimi A. Coronary microvascular reserve and outcome in aortic stenosis: Pathophysiological significance vs. clinical relevance. Eur Heart J 2017; 38:1230-1232. [PMID: 28087603 DOI: 10.1093/eurheartj/ehw635] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Affiliation(s)
- Patrizio Lancellotti
- University of Liège Hospital, GIGA Cardiovascular Sciences, Departments of Cardiology, Cardio-Oncology Clinic, CHU Sart Tilman, Liège, Belgium.,Gruppo Villa Maria Care and Research, Anthea Hospital, Bari, Italy
| | - Alain Nchimi
- University of Liège Hospital, GIGA Cardiovascular Sciences, Departments of Cardiology, Cardio-Oncology Clinic, CHU Sart Tilman, Liège, Belgium
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40
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Gulsin GS, Shetye A, Khoo J, Swarbrick DJ, Levelt E, Lai FY, Squire IB, Arnold JR, McCann GP. Does stress perfusion imaging improve the diagnostic accuracy of late gadolinium enhanced cardiac magnetic resonance for establishing the etiology of heart failure? BMC Cardiovasc Disord 2017; 17:98. [PMID: 28390413 PMCID: PMC5385076 DOI: 10.1186/s12872-017-0529-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 03/31/2017] [Indexed: 12/28/2022] Open
Abstract
Background Late gadolinium enhanced cardiovascular magnetic resonance (LGE-CMR) has excellent specificity, sensitivity and diagnostic accuracy for differentiating between ischemic cardiomyopathy (ICM) and non-ischemic dilated cardiomyopathy (NICM). CMR first-pass myocardial perfusion imaging (perfusion-CMR) may also play role in distinguishing heart failure of ischemic and non-ischemic origins, although the utility of additional of stress perfusion imaging in such patients is unclear. The aim of this retrospective study was to assess whether the addition of adenosine stress perfusion imaging to LGE-CMR is of incremental value for differentiating ICM and NICM in patients with severe left ventricular systolic dysfunction (LVSD) of uncertain etiology. Methods We retrospectively identified 100 consecutive adult patients (median age 69 years (IQR 59–73)) with severe LVSD (mean LV EF 26.6 ± 7.0%) referred for perfusion-CMR to establish the underlying etiology of heart failure. The cause of heart failure was first determined on examination of CMR cine and LGE images in isolation. Subsequent examination of complete adenosine stress perfusion-CMR studies (cine, LGE and perfusion images) was performed to identify whether this altered the initial diagnosis. Results On LGE-CMR, 38 patients were diagnosed with ICM, 46 with NICM and 16 with dual pathology. With perfusion-CMR, there were 39 ICM, 44 NICM and 17 dual pathology diagnoses. There was excellent agreement in diagnoses between LGE-CMR and perfusion-CMR (κ 0.968, p<0.001). The addition of adenosine stress perfusion images to LGE-CMR altered the diagnosis in only two of the 100 patients. Conclusion The addition of adenosine stress perfusion-CMR to cine and LGE-CMR provides minimal incremental diagnostic yield for determining the etiology of heart failure in patients with severe LVSD.
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Affiliation(s)
- Gaurav S Gulsin
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester, LE3 9QP, UK. .,The NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK.
| | - Abishek Shetye
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester, LE3 9QP, UK.,The NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
| | - Jeffrey Khoo
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester, LE3 9QP, UK.,The NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
| | - Daniel J Swarbrick
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester, LE3 9QP, UK.,The NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
| | - Eylem Levelt
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester, LE3 9QP, UK.,The NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
| | - Florence Y Lai
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester, LE3 9QP, UK.,The NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
| | - Iain B Squire
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester, LE3 9QP, UK.,The NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
| | - Jayanth R Arnold
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester, LE3 9QP, UK.,The NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
| | - Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester, LE3 9QP, UK.,The NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
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41
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Domanski O, Richardson M, Coisne A, Polge AS, Mouton S, Godart F, Edmé JL, Matran R, Lancellotti P, Montaigne D. Cardiopulmonary exercise testing is a better outcome predictor than exercise echocardiography in asymptomatic aortic stenosis. Int J Cardiol 2017; 227:908-914. [DOI: 10.1016/j.ijcard.2016.10.070] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 10/25/2016] [Accepted: 10/27/2016] [Indexed: 10/20/2022]
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42
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Ahn JH, Kim SM, Park SJ, Jeong DS, Woo MA, Jung SH, Lee SC, Park SW, Choe YH, Park PW, Oh JK. Coronary Microvascular Dysfunction as a Mechanism of Angina in Severe AS: Prospective Adenosine-Stress CMR Study. J Am Coll Cardiol 2016; 67:1412-1422. [PMID: 27012401 DOI: 10.1016/j.jacc.2016.01.013] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 01/06/2016] [Accepted: 01/12/2016] [Indexed: 01/09/2023]
Abstract
BACKGROUND Although a common symptom in patients with severe aortic stenosis (AS) without obstructive coronary artery disease (CAD), little is known about the pathogenesis of exertional angina. OBJECTIVES This study sought to prove that microvascular dysfunction is responsible for chest pain in patients with severe AS and normal epicardial coronary arteries using adenosine-stress cardiac magnetic resonance (CMR) imaging. METHODS Between June 2012 and April 2015, 117 patients with severe AS without obstructive CAD and 20 normal controls were enrolled prospectively. After exclusions, study patients were divided into 2 groups according to presence of exertional chest pain: an angina group (n = 43) and an asymptomatic group (n = 41), and the semiquantitative myocardial perfusion reserve index (MPRI) was calculated. RESULTS MPRI values were significantly lower in severe AS patients than in normal controls (0.90 ± 0.31 vs. 1.25 ± 0.21; p < 0.001), and were much lower in the angina group than the asymptomatic group (0.74 ± 0.25 vs. 1.08 ± 0.28; p < 0.001). In logistic regression analysis, the only independent predictor for angina was MPRI (odds ratio: 0.003; p < 0.001). Univariate associations with MPRI were identified for diastolic blood pressure, E/e' ratio, left ventricular volume and ejection fraction, cardiac index, presence of late gadolinium enhancement, and left ventricular mass index (LVMI). In multivariate analysis, LVMI was the strongest contributing factor to MPRI (standardization coefficient: -0.428; p < 0.001). CONCLUSIONS Our results suggest that, in patients with severe AS without obstructive CAD, angina is related to impaired coronary microvascular function along with LV hypertrophy detectable by semiquantitative MPRI using adenosine-stress CMR. CLINICAL TRIAL REGISTRATION NCT02575768.
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Affiliation(s)
- Jong-Hwa Ahn
- Division of Cardiology, Department of Medicine, Cardiovascular Imaging Center, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Sung Mok Kim
- Department of Radiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Sung-Ji Park
- Division of Cardiology, Department of Medicine, Cardiovascular Imaging Center, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
| | - Dong Seop Jeong
- Department of Thoracic Surgery, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Min-Ah Woo
- Biostatistics and Clinical Epidemiology Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Sin-Ho Jung
- Biostatistics and Clinical Epidemiology Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Sang-Chol Lee
- Division of Cardiology, Department of Medicine, Cardiovascular Imaging Center, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Seung Woo Park
- Division of Cardiology, Department of Medicine, Cardiovascular Imaging Center, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Yeon Hyeon Choe
- Department of Radiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Pyo Won Park
- Department of Thoracic Surgery, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jae K Oh
- Division of Cardiology, Department of Medicine, Cardiovascular Imaging Center, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea; Division of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota
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43
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Htike ZZ, Yates T, Brady EM, Webb D, Gray LJ, Swarbrick D, McCann GP, Khunti K, Davies MJ. Rationale and design of the randomised controlled trial to assess the impact of liraglutide on cardiac function and structure in young adults with type 2 diabetes (the LYDIA study). Cardiovasc Diabetol 2016; 15:102. [PMID: 27440110 PMCID: PMC4955217 DOI: 10.1186/s12933-016-0421-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Accepted: 07/06/2016] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND The prevalence of type 2 diabetes (T2DM) in younger adults is growing. Compared to the late onset T2DM, it is well recognized that the disease tends to behave more aggressively in the younger age group with evidence of premature micro and macrovasular diseases and shorter life span. This increased mortality is largely attributed to cardiovascular complications. In a recent pilot study, young adults with T2DM were found to have significantly lower peak diastolic strain rate (PEDSR) on cardiac MRI (CMR), a forerunner of diabetic cardiomyopathy. Liraglutide, a glucagon like peptide-1 (GLP-1) analogue, is one of the new classes of glucose lowering therapies licensed to be used in management of T2DM. In randomised controlled trials, liraglutide improves glycaemic control by 1-1.5 % with an added benefit of weight loss of 2-3 kg. In addition, there is emerging evidence elucidating the cardioprotective effects of GLP-1 analogues independent of glycaemic control. In a small study, liraglutide has also been shown to improve cardiac function in patients with coronary ischaemia or congestive heart failure. METHODS AND AIMS This is a prospective, randomised, open-label, blind end-point (PROBE) active-comparator trial. A total of 90 obese eligible participants with T2DM (18-50 years) will be randomised to either liraglutide 1.8 mg once daily or sitagliptin 100 mg once daily for 26 weeks. The primary aim is to assess whether liraglutide improves diastolic function compared to sitagliptin as measured by PEDSR using CMR. DISCUSSION Although newer classes of GLP-1 analogues are made available in recent years, there are very few published studies demonstrating the beneficial effect of GLP-1 analogues on cardiovascular endpoints. In a recently published LEADER study, liraglutide has shown superiority to placebo in a population of type 2 diabetes with high risk of cardiovascular disease. To the best of our knowledge, there are no published studies establishing the effect of liraglutide on cardiac function in younger patients with T2DM on a larger scale. The LYDIA study will comprehensively describe changes in various parameters of cardiac structure and function in patients treated with liraglutide aiming to provide new evidence on effect of liraglutide on diastolic function in young obese people with T2DM. Trial Registration ClinicalTrials.gov identifier: NCT02043054.
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Affiliation(s)
- Z. Z. Htike
- />NIHR Leicester-Loughborough Diet, Lifestyle and Physical Activity Biomedical Research Unit, Leicester Diabetes Centre, Leicester General Hospital, Leicester, UK and Health Sciences, University of Leicester, Leicester, UK
| | - T. Yates
- />NIHR Leicester-Loughborough Diet, Lifestyle and Physical Activity Biomedical Research Unit, Leicester Diabetes Centre, Leicester General Hospital, Leicester, UK and Health Sciences, University of Leicester, Leicester, UK
| | - E. M. Brady
- />NIHR Leicester-Loughborough Diet, Lifestyle and Physical Activity Biomedical Research Unit, Leicester Diabetes Centre, Leicester General Hospital, Leicester, UK and Health Sciences, University of Leicester, Leicester, UK
| | - D. Webb
- />NIHR Leicester-Loughborough Diet, Lifestyle and Physical Activity Biomedical Research Unit, Leicester Diabetes Centre, Leicester General Hospital, Leicester, UK and Health Sciences, University of Leicester, Leicester, UK
| | - L. J. Gray
- />NIHR Leicester-Loughborough Diet, Lifestyle and Physical Activity Biomedical Research Unit, Leicester Diabetes Centre, Leicester General Hospital, Leicester, UK and Health Sciences, University of Leicester, Leicester, UK
| | - D. Swarbrick
- />Department of Cardiovascular Sciences, Glenfield Hospital, University of Leicester, Leicester, UK
- />NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
| | - G. P. McCann
- />Department of Cardiovascular Sciences, Glenfield Hospital, University of Leicester, Leicester, UK
- />NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Leicester, UK
| | - K. Khunti
- />NIHR Leicester-Loughborough Diet, Lifestyle and Physical Activity Biomedical Research Unit, Leicester Diabetes Centre, Leicester General Hospital, Leicester, UK and Health Sciences, University of Leicester, Leicester, UK
| | - M. J. Davies
- />NIHR Leicester-Loughborough Diet, Lifestyle and Physical Activity Biomedical Research Unit, Leicester Diabetes Centre, Leicester General Hospital, Leicester, UK and Health Sciences, University of Leicester, Leicester, UK
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44
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Graham-Brown MPM, March DS, Churchward DR, Young HML, Dungey M, Lloyd S, Brunskill NJ, Smith AC, McCann GP, Burton JO. Design and methods of CYCLE-HD: improving cardiovascular health in patients with end stage renal disease using a structured programme of exercise: a randomised control trial. BMC Nephrol 2016; 17:69. [PMID: 27391774 PMCID: PMC4938939 DOI: 10.1186/s12882-016-0294-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 06/14/2016] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND There is emerging evidence that exercise training could positively impact several of the cardiovascular risk factors associated with sudden cardiac death amongst patients on haemodialysis. The primary aim of this study is to evaluate the effect of an intradialytic exercise programme on left ventricular mass. METHOD AND DESIGN Prospective, randomised cluster open-label blinded endpoint clinical trial in 130 patients with end stage renal disease on haemodialysis. Patients will be randomised 1:1 to either 1) minimum of 30 min continuous cycling thrice weekly during dialysis or 2) standard care. The primary outcome is change in left ventricular mass at 6 months, assessed by cardiac MRI (CMR). In order to detect a difference in LV mass of 15 g between groups at 80 % power, a sample size of 65 patients per group is required. Secondary outcome measures include abnormalities of cardiac rhythm, left ventricular volumes and ejection fraction, physical function measures, anthropometric measures, quality of life and markers of inflammation, with interim assessment for some measures at 3 months. DISCUSSION This study will test the hypothesis that an intradialytic programme of exercise leads to a regression in left ventricular mass, an important non-traditional cardiovascular risk factor in end stage renal disease. For the first time this will be assessed using CMR. We will also evaluate the efficacy, feasibility and safety of an intradialytic exercise programme using a number of secondary end-points. We anticipate that a positive outcome will lead to both an increased patient uptake into established intradialytic programmes and the development of new programmes nationally and internationally. TRIAL REGISTRATION NUMBER ISRCTN11299707 (registration date 5(th) March 2015).
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Affiliation(s)
- M P M Graham-Brown
- John Walls Renal Unit, University Hospitals Leicester NHS Trust, Leicester, UK.
- Department of Infection Immunity and Inflammation, School of Medicine and Biological Sciences, University of Leicester, Leicester, LE1 9HN, UK.
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK.
| | - D S March
- John Walls Renal Unit, University Hospitals Leicester NHS Trust, Leicester, UK
- Department of Infection Immunity and Inflammation, School of Medicine and Biological Sciences, University of Leicester, Leicester, LE1 9HN, UK
| | - D R Churchward
- John Walls Renal Unit, University Hospitals Leicester NHS Trust, Leicester, UK
- Department of Infection Immunity and Inflammation, School of Medicine and Biological Sciences, University of Leicester, Leicester, LE1 9HN, UK
| | - H M L Young
- John Walls Renal Unit, University Hospitals Leicester NHS Trust, Leicester, UK
- Department of Infection Immunity and Inflammation, School of Medicine and Biological Sciences, University of Leicester, Leicester, LE1 9HN, UK
| | - M Dungey
- John Walls Renal Unit, University Hospitals Leicester NHS Trust, Leicester, UK
- Department of Infection Immunity and Inflammation, School of Medicine and Biological Sciences, University of Leicester, Leicester, LE1 9HN, UK
| | - S Lloyd
- Robertson Centre for Biostatistics University of Glasgow, Glasgow, UK
| | - N J Brunskill
- John Walls Renal Unit, University Hospitals Leicester NHS Trust, Leicester, UK
- Department of Infection Immunity and Inflammation, School of Medicine and Biological Sciences, University of Leicester, Leicester, LE1 9HN, UK
| | - A C Smith
- John Walls Renal Unit, University Hospitals Leicester NHS Trust, Leicester, UK
- Department of Infection Immunity and Inflammation, School of Medicine and Biological Sciences, University of Leicester, Leicester, LE1 9HN, UK
| | - G P McCann
- John Walls Renal Unit, University Hospitals Leicester NHS Trust, Leicester, UK
- Department of Cardiovascular Sciences, University of Leicester and NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital Leicester, Leicester, UK
| | - J O Burton
- John Walls Renal Unit, University Hospitals Leicester NHS Trust, Leicester, UK
- Department of Infection Immunity and Inflammation, School of Medicine and Biological Sciences, University of Leicester, Leicester, LE1 9HN, UK
- Department of Cardiovascular Sciences, University of Leicester and NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital Leicester, Leicester, UK
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45
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Sathyamurthy I, Jayanthi K. Asymptomatic severe aortic stenosis with normal left ventricular function - A review. Indian Heart J 2016; 68:576-80. [PMID: 27543485 PMCID: PMC4990807 DOI: 10.1016/j.ihj.2016.05.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Revised: 05/05/2016] [Accepted: 05/09/2016] [Indexed: 01/13/2023] Open
Abstract
Aortic stenosis (AS) is one of the commonest forms of acquired valvular heart disease. Aortic valve replacement (AVR) is the treatment of choice for symptomatic severe AS. Conservative management is usually advocated for asymptomatic severe AS. But there are data on predictors to identify subsets of asymptomatic AS patients at high risk of cardiac events in whom early surgical intervention is warranted. Non-invasive tests like exercise stress test, exercise echocardiography will help us to identify those who are at high risk of developing early symptoms due to LV dysfunction and also those at high risk of sudden death. In this article, an attempt is made to review the literature on this subset of asymptomatic severe AS to help clinicians to decide regarding the need for early aortic valve replacement in them.
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Affiliation(s)
| | - K Jayanthi
- SIMS, SRM Institutes for Medical Science, Vadapalani, Chennai, India
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46
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Le VDT, Jensen GVH, Kjøller-Hansen L. Observed change in peak oxygen consumption after aortic valve replacement and its predictors. Open Heart 2016; 3:e000309. [PMID: 27252876 PMCID: PMC4885434 DOI: 10.1136/openhrt-2015-000309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 03/18/2016] [Accepted: 04/25/2016] [Indexed: 11/23/2022] Open
Abstract
Objective To assess the change in peak oxygen consumption (pVO2) and determine its outcome predictors after aortic valve replacement (AVR) for aortic stenosis (AS). Methods Patients with AS and preserved left ventricular ejection fraction who were referred for single AVR had cardiopulmonary exercise testing prior to and 9 months post-AVR. Predictors of outcome for pVO2 were determined by multivariate linear and logistic regression analyses. A significant change in pVO2 was defined as a relative change that was more than twice the coefficient of repeatability by test–retest (>10%). Results The pre-AVR characteristics of the 37 study patients included the following: median age (range) 72 (46–83) years, aortic valve area index (AVAI) 0.41 (SD 0.11) cm2/m2, mean gradient (MG) 49.1 (SD 15.3) mm Hg and New York Heart Association (NYHA)≥II 27 (73%). Pre-AVR and post-AVR mean pVO2 was 18.5 and 18.4 mL/kg/m2 (87% of the predicted), respectively, but the change from pre-AVR was heterogeneous. The relative change in pVO2 was positively associated with the preoperative MG (β=0.50, p=0.001) and negatively associated with brain natriuretic peptide > upper level of normal according to age and gender (β=−0.40, p=0.009). A relative increase in pVO2 exceeding 10% was found in 9 (24%), predicted by lower pre-AVR AVAI (OR 0.18; 95% CI 0.04 to 0.82, p=0.027) and lower peak O2 pulse (OR 0.94; 95% CI 0.88 to 0.99, p=0.045). Decreases in pVO2 exceeding 10% were found in 11 (30%) and predicted by lower MG (OR 0.93; 95% CI 0.86 to 0.99, p=0.033). Conclusions Change in pVO2 was heterogeneous. Predictors of favourable and unfavourable outcomes for pVO2 were identified.
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Affiliation(s)
- Van Doan Tuyet Le
- Department of Cardiology , Roskilde University Hospital , Roskilde , Denmark
| | | | - Lars Kjøller-Hansen
- Department of Cardiology , Roskilde University Hospital , Roskilde , Denmark
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47
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Musa TA, Plein S, Greenwood JP. The role of cardiovascular magnetic resonance in the assessment of severe aortic stenosis and in post-procedural evaluation following transcatheter aortic valve implantation and surgical aortic valve replacement. Quant Imaging Med Surg 2016; 6:259-73. [PMID: 27429910 PMCID: PMC4929281 DOI: 10.21037/qims.2016.06.05] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 04/02/2016] [Indexed: 01/20/2023]
Abstract
Degenerative aortic stenosis (AS) is the most common valvular disease in the western world with a prevalence expected to double within the next 50 years. International guidelines advocate the use of cardiovascular magnetic resonance (CMR) as an investigative tool, both to guide diagnosis and to direct optimal treatment. CMR is the reference standard for quantifying both left and right ventricular volumes and mass, which is essential to assess the impact of AS upon global cardiac function. Given the ability to image any structure in any plane, CMR offers many other diagnostic strengths including full visualisation of valvular morphology, direct planimetry of orifice area, the quantification of stenotic jets and in particular, accurate quantification of valvular regurgitation. In addition, CMR permits reliable and accurate measurements of the aortic root and arch which can be fundamental to appropriate patient management. There is a growing evidence base to indicate tissue characterisation using CMR provides prognostic information, both in asymptomatic AS patients and those undergoing intervention. Furthermore, a number of current clinical trials will likely raise the importance of CMR in routine patient management. This article will focus on the incremental value of CMR in the assessment of severe AS and the insights it offers following valve replacement.
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Affiliation(s)
- Tarique Al Musa
- Multidisciplinary Cardiovascular Research Centre (MCRC) & Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Sven Plein
- Multidisciplinary Cardiovascular Research Centre (MCRC) & Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - John P Greenwood
- Multidisciplinary Cardiovascular Research Centre (MCRC) & Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
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McCann GP, Khan JN, Greenwood JP, Nazir S, Dalby M, Curzen N, Hetherington S, Kelly DJ, Blackman DJ, Ring A, Peebles C, Wong J, Sasikaran T, Flather M, Swanton H, Gershlick AH. Complete Versus Lesion-Only Primary PCI: The Randomized Cardiovascular MR CvLPRIT Substudy. J Am Coll Cardiol 2016; 66:2713-2724. [PMID: 26700834 PMCID: PMC4681843 DOI: 10.1016/j.jacc.2015.09.099] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 09/02/2015] [Accepted: 09/22/2015] [Indexed: 12/22/2022]
Abstract
Background Complete revascularization may improve outcomes compared with an infarct-related artery (IRA)-only strategy in patients being treated with primary percutaneous coronary intervention (PPCI) who have multivessel disease presenting with ST-segment elevation myocardial infarction (STEMI). However, there is concern that non-IRA PCI may cause additional non-IRA myocardial infarction (MI). Objectives This study sought to determine whether in-hospital complete revascularization was associated with increased total infarct size compared with an IRA-only strategy. Methods This multicenter prospective, randomized, open-label, blinded endpoint clinical trial evaluated STEMI patients with multivessel disease having PPCI within 12 h of symptom onset. Patients were randomized to either IRA-only PCI or complete in-hospital revascularization. Contrast-enhanced cardiovascular magnetic resonance (CMR) was performed following PPCI (median day 3) and stress CMR at 9 months. The pre-specified primary endpoint was infarct size on pre-discharge CMR. The study had 80% power to detect a 4% difference in infarct size with 100 patients per group. Results Of the 296 patients in the main trial, 205 participated in the CMR substudy, and 203 patients (98 complete revascularization and 105 IRA-only) completed the pre-discharge CMR. The groups were well-matched. Total infarct size (median, interquartile range) was similar to IRA-only revascularization: 13.5% (6.2% to 21.9%) versus complete revascularization, 12.6% (7.2% to 22.6%) of left ventricular mass, p = 0.57 (95% confidence interval for difference in geometric means 0.82 to 1.41). The complete revascularization group had an increase in non-IRA MI on the pre-discharge CMR (22 of 98 vs. 11 of 105, p = 0.02). There was no difference in total infarct size or ischemic burden between treatment groups at follow-up CMR. Conclusions Multivessel PCI in the setting of STEMI leads to a small increase in CMR-detected non-IRA MI, but total infarct size was not significantly different from an IRA-only revascularization strategy. (Complete Versus Lesion-Only Primary PCI Pilot Study [CvLPRIT]; ISRCTN70913605)
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Affiliation(s)
- Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester and the National Institute of Health Research (NIHR) Leicester Cardiovascular Biomedical Research Unit, University Hospitals of Leicester National Health Service (NHS) Trust, Glenfield Hospital, Leicester, United Kingdom.
| | - Jamal N Khan
- Department of Cardiovascular Sciences, University of Leicester and the National Institute of Health Research (NIHR) Leicester Cardiovascular Biomedical Research Unit, University Hospitals of Leicester National Health Service (NHS) Trust, Glenfield Hospital, Leicester, United Kingdom
| | - John P Greenwood
- Multidisciplinary Cardiovascular Research Centre & Division of Cardiovascular and Diabetes Research, Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), University of Leeds, Leeds, United Kingdom
| | - Sheraz Nazir
- Department of Cardiovascular Sciences, University of Leicester and the National Institute of Health Research (NIHR) Leicester Cardiovascular Biomedical Research Unit, University Hospitals of Leicester National Health Service (NHS) Trust, Glenfield Hospital, Leicester, United Kingdom
| | - Miles Dalby
- Department of Cardiology, Royal Brompton and Harefield Foundation Trust, Harefield Hospital, Middlesex, United Kingdom, and the Cardiovascular Biomedical Research Unit of Royal Brompton and Harefield NHS Foundation Trust and Imperial College London, London, United Kingdom
| | - Nick Curzen
- Department of Cardiology and Radiology, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, United Kingdom
| | - Simon Hetherington
- Department of Cardiology, Kettering General Hospital, Kettering, United Kingdom
| | - Damian J Kelly
- Department of Cardiology, Royal Derby Hospital, Derby, United Kingdom
| | - Daniel J Blackman
- Multidisciplinary Cardiovascular Research Centre & Division of Cardiovascular and Diabetes Research, Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), University of Leeds, Leeds, United Kingdom
| | - Arne Ring
- Leicester Clinical Trials Unit, University of Leicester, Leicester, United Kingdom; Department of Mathematical Statistics and Actuarial Science, University of the Free State, Bloemfontein, South Africa
| | - Charles Peebles
- Department of Cardiology and Radiology, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, United Kingdom
| | - Joyce Wong
- Department of Cardiology, Royal Brompton and Harefield Foundation Trust, Harefield Hospital, Middlesex, United Kingdom, and the Cardiovascular Biomedical Research Unit of Royal Brompton and Harefield NHS Foundation Trust and Imperial College London, London, United Kingdom
| | - Thiagarajah Sasikaran
- Clinical Trials & Evaluation Unit, Royal Brompton & Harefield NHS Foundation Trust and Imperial Clinical Trials Unit, Imperial College London, London, United Kingdom
| | - Marcus Flather
- Clinical Trials Unit, Norfolk and Norwich University Hospitals NHS Foundation Trust and Norwich Medical School, University of East Anglia, Norwich, United Kingdom
| | - Howard Swanton
- Department of Cardiology, Heart Hospital, University College London Hospitals, London, United Kingdom
| | - Anthony H Gershlick
- Department of Cardiovascular Sciences, University of Leicester and the National Institute of Health Research (NIHR) Leicester Cardiovascular Biomedical Research Unit, University Hospitals of Leicester National Health Service (NHS) Trust, Glenfield Hospital, Leicester, United Kingdom
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Singh A, Steadman CD, Khan JN, Reggiardo G, McCann GP. Effect of late sodium current inhibition on MRI measured diastolic dysfunction in aortic stenosis: a pilot study. BMC Res Notes 2016; 9:64. [PMID: 26847571 PMCID: PMC4743087 DOI: 10.1186/s13104-016-1874-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Accepted: 01/19/2016] [Indexed: 12/19/2022] Open
Abstract
Background Ranolazine is a new anti-anginal drug that acts via late sodium current inhibition, and has been shown to improve diastolic dysfunction in isolated myocytes.
Diastolic dysfuntion is common in patients with aortic stenosis (AS), and precedes symptom development and systolic dysfunction. The purpose of this study was to assess the effects of ranolazine on peak early diastolic strain rate (PEDSR) and exercise capacity in patients with AS. Methods Patients with asymptomatic moderate to severe AS and diastolic dysfunction underwent trans-thoracic echocardiography, exercise testing and cardiac magnetic resonance (CMR) imaging at baseline, 6 weeks after commencing ranolazine and at 10 weeks (4 weeks after discontinuation). Diastolic function was assessed using PEDSR measured on tagged CMR images. Results Fifteen patients (peak pressure gradient 48.8 ± 12.4 mmHg, mean pressure gradient 27.1 ± 7.5 mmHg, aortic valve area 1.26 ± 0.31 cm2) completed the week-6 visit and 13 completed the final visit. Global PEDSR did not significantly increase from baseline (0.79 ± 0.15) to week-6 (0.86 ± 0.18, p = 0.198). There was a borderline significant increase in total exercise duration from 10.47 ± 3.68 min to 11.60 ± 3.25 min (p = 0.06). Conclusion This small pilot study did not show a significant improvement in diastolic function with the use of ranolazine in asymptomatic patients with moderate-severe AS. Further studies with a larger population may be indicated. EduraCT number 2011-000111-26 Electronic supplementary material The online version of this article (doi:10.1186/s13104-016-1874-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Anvesha Singh
- Department of Cardiovascular Sciences, University of Leicester and NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Groby Road, Leicester, LE3 9QP, UK.
| | | | - Jamal N Khan
- Department of Cardiovascular Sciences, University of Leicester and NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Groby Road, Leicester, LE3 9QP, UK.
| | | | - Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester and NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital, Groby Road, Leicester, LE3 9QP, UK.
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Novel plasma and imaging biomarkers in heart failure with preserved ejection fraction. IJC HEART & VASCULATURE 2015; 9:55-62. [PMID: 28785707 PMCID: PMC5497340 DOI: 10.1016/j.ijcha.2015.07.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 07/25/2015] [Indexed: 12/17/2022]
Abstract
Existing diagnostic guidelines for heart failure with preserved ejection fraction (HFPEF) primarily comprise natriuretic peptides and echocardiographic assessment, highlighting the role of diastolic dysfunction. However, recent discoveries of novel plasma markers implicated in pathophysiology of heart failure and technological advances in imaging provide additional biomarkers which are potentially applicable to HFPEF. The evidence base for plasma extra-cellular matrix (ECM) peptides, galectin-3, ST2, GDF-15 and pentraxin-3 is reviewed. Furthermore, the capabilities of novel imaging techniques to assess existing parameters (e.g. left ventricular ejection fraction, systolic & diastolic function, chamber size) and additional derangements of the ECM, myocardial mechanics and ischaemia evaluation are addressed.
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