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Lehmann HI, Tsao L, Singh JP. Treatment of cardiac resynchronization therapy non-responders: current approaches and new frontiers. Expert Rev Med Devices 2022; 19:539-547. [PMID: 35997539 DOI: 10.1080/17434440.2022.2117031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Cardiac resynchronization therapy (CRT) has developed into a very effective technology for patients with decreased systolic function and has substantially improved patients' clinical course. However, non-responsiveness to CRT, described as lack of reverse cardiac chamber remodeling, leading to lack to improve symptoms, heart failure hospitalizations or mortality, is common, rather unpredictable, and not fully understood. AREAS COVERED This article aims to discuss key factors that are impacting CRT response; from patient selection to LV lead position, to structured follow-up in CRT clinics. Secondly, common causes and interventions for CRT non-responsiveness are discussed. Next, insight is given into technologies representing new and feasible interventions as well as pacing strategies in this group of patients that remain challenging to treat. Finally, an outlook is given into future scientific development. EXPERT OPINION Despite the progress that has been made, CRT non-response remains a significant and complex problem. Patient management in interdisciplinary teams including heart failure, imaging, and cardiac arrhythmia experts appears critical as complexity is increasing and CRT non-response often is a multifactorial problem. This will allow optimization of medical therapy, the use of new integrated sensor technologies and telemedicine to ultimately optimize outcomes for all patients in need of CRT.
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Affiliation(s)
- H Immo Lehmann
- Cardiology Division, Massachusetts General Hospital, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
| | - Lana Tsao
- Cardiology Division, Massachusetts General Hospital, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
| | - Jagmeet P Singh
- Cardiology Division, Massachusetts General Hospital, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
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2
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Fixsen LS, Wouters PC, Lopata RGP, Kemps HMC. Strain-based discoordination imaging during exercise in heart failure with reduced ejection fraction: Feasibility and reproducibility. BMC Cardiovasc Disord 2022; 22:127. [PMID: 35337295 PMCID: PMC8957182 DOI: 10.1186/s12872-022-02578-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 03/15/2022] [Indexed: 11/10/2022] Open
Abstract
PURPOSE Various parameters of mechanical dyssynchrony have been proposed to improve patient selection criteria for cardiac resynchronization therapy, but sensitivity and specificity are lacking. However, echocardiographic parameters are consistently investigated at rest, whereas heart failure (HF) symptoms predominately manifest during submaximal exertion. Although strain-based predictors of response are promising, feasibility and reproducibility during exercise has yet to be demonstrated. METHODS Speckle-tracking echocardiography was performed in patients with HF at two separate visits. Echocardiography was performed at rest, during various exercise intensity levels, and during recovery from exercise. Systolic rebound stretch of the septum (SRSsept), systolic shortening, and septal discoordination index (SDI) were calculated. RESULTS Echocardiography was feasible in about 70-80% of all examinations performed during exercise. Of these acquired views, 84% of the cine-loops were suitable for analysis of strain-based mechanical dyssynchrony. Test-retest variability and intra- and inter-operator reproducibility at 30% and 60% of the ventilatory threshold (VT) were about 2.5%. SDI improved in the majority of patients at 30% and 60% of the VT, with moderate to good agreement between both intensity levels. CONCLUSION Although various challenges remain, exercise echocardiography with strain analysis appears to be feasible in the majority of patients with dyssynchronous heart failure. Inter- and intra-observer agreement of SRSsept and SDI up to 60% of the VT were comparable to resting values. During exercise, the extent of SDI was variable, suggesting a heterogeneous response to exercise. Further research is warranted to establish its clinical significance.
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Affiliation(s)
- Louis S Fixsen
- Department of Biomedical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands.
| | - Philippe C Wouters
- Department of Cardiology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Richard G P Lopata
- Department of Biomedical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Hareld M C Kemps
- Department of Cardiology, Maxima Medical Centre, Veldhoven, The Netherlands.,Department of Industrial Design, Eindhoven University of Technology, Eindhoven, The Netherlands
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3
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Ghazizadeh Z, Zhu J, Fattahi F, Tang A, Sun X, Amin S, Tsai SY, Khalaj M, Zhou T, Samuel RM, Zhang T, Ortega FA, Gordillo M, Moroziewicz D, Paull D, Noggle SA, Xiang JZ, Studer L, Christini DJ, Pitt GS, Evans T, Chen S. A dual SHOX2:GFP; MYH6:mCherry knockin hESC reporter line for derivation of human SAN-like cells. iScience 2022; 25:104153. [PMID: 35434558 PMCID: PMC9010642 DOI: 10.1016/j.isci.2022.104153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 01/25/2022] [Accepted: 03/22/2022] [Indexed: 01/19/2023] Open
Abstract
The sinoatrial node (SAN) is the primary pacemaker of the heart. The human SAN is poorly understood due to limited primary tissue access and limitations in robust in vitro derivation methods. We developed a dual SHOX2:GFP; MYH6:mCherry knockin human embryonic stem cell (hESC) reporter line, which allows the identification and purification of SAN-like cells. Using this line, we performed several rounds of chemical screens and developed an efficient strategy to generate and purify hESC-derived SAN-like cells (hESC-SAN). The derived hESC-SAN cells display molecular and electrophysiological characteristics of bona fide nodal cells, which allowed exploration of their transcriptional profile at single-cell level. In sum, our dual reporter system facilitated an effective strategy for deriving human SAN-like cells, which can potentially be used for future disease modeling and drug discovery.
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Affiliation(s)
- Zaniar Ghazizadeh
- Department of Surgery, Weill Cornell Medical College, New York, NY 10065, USA,Corresponding author
| | - Jiajun Zhu
- Department of Surgery, Weill Cornell Medical College, New York, NY 10065, USA
| | - Faranak Fattahi
- The Center for Stem Cell Biology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA,Department of Cellular and Molecular Pharmacology, University of California, San Francisco, San Francisco, CA 94158, USA,Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Alice Tang
- Department of Surgery, Weill Cornell Medical College, New York, NY 10065, USA
| | - Xiaolu Sun
- Cardiovascular Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Sadaf Amin
- Department of Surgery, Weill Cornell Medical College, New York, NY 10065, USA
| | - Su-Yi Tsai
- Department of Life Science, National Taiwan University, Taipei 10617, Taiwan
| | - Mona Khalaj
- Department of Surgery, Weill Cornell Medical College, New York, NY 10065, USA
| | - Ting Zhou
- The Center for Stem Cell Biology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ryan M. Samuel
- Department of Cellular and Molecular Pharmacology, University of California, San Francisco, San Francisco, CA 94158, USA,Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Tuo Zhang
- Genomic Resource Core Facility, Weill Cornell Medical College, New York, NY 10065, USA
| | - Francis A. Ortega
- Physiology, Biophysics, and Systems Biology Graduate Program, Weill Cornell Medical College, New York, NY 10065, USA,Department of Physiology & Pharmacology, SUNY Downstate Health Sciences University, Brooklyn, NY 11203, USA
| | - Miriam Gordillo
- Department of Surgery, Weill Cornell Medical College, New York, NY 10065, USA
| | - Dorota Moroziewicz
- The New York Stem Cell Foundation Research Institute, 619 West 54th Street, 3rd Floor, New York, NY 10019, USA
| | | | - Daniel Paull
- The New York Stem Cell Foundation Research Institute, 619 West 54th Street, 3rd Floor, New York, NY 10019, USA
| | - Scott A. Noggle
- The New York Stem Cell Foundation Research Institute, 619 West 54th Street, 3rd Floor, New York, NY 10019, USA
| | - Jenny Zhaoying Xiang
- Genomic Resource Core Facility, Weill Cornell Medical College, New York, NY 10065, USA
| | - Lorenz Studer
- The Center for Stem Cell Biology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - David J. Christini
- Department of Physiology & Pharmacology, SUNY Downstate Health Sciences University, Brooklyn, NY 11203, USA
| | - Geoffrey S. Pitt
- Cardiovascular Research Institute, Weill Cornell Medicine, New York, NY 10021, USA
| | - Todd Evans
- Department of Surgery, Weill Cornell Medical College, New York, NY 10065, USA,Corresponding author
| | - Shuibing Chen
- Department of Surgery, Weill Cornell Medical College, New York, NY 10065, USA,Corresponding author
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Riolet C, Menet A, Mailliet A, Binda C, Altes A, Appert L, Castel AL, Delelis F, Viart G, Guyomar Y, Le Goffic C, Decroocq M, Ennezat PV, Graux P, Tribouilloy C, Marechaux S. Clinical Significance of Global Wasted Work in Patients with Heart Failure Receiving Cardiac Resynchronization Therapy. J Am Soc Echocardiogr 2021; 34:976-986. [PMID: 34157400 DOI: 10.1016/j.echo.2021.06.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/14/2021] [Accepted: 06/14/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND The relationship between myocardial work assessment using pressure-strain loops by echocardiography before cardiac resynchronization therapy (CRT) and response to CRT has been recently revealed. Among myocardial work parameters, the impact of left ventricular myocardial global wasted work (GWW) on response to CRT and outcome following CRT has been seldom studied. Hence, the authors evaluated the relationship between preprocedural GWW and outcome in a large prospective cohort of patients with heart failure (HF) and reduced ejection fraction receiving CRT. METHODS The study included 249 patients with HF. Myocardial work indices including GWW were calculated using speckle-tracking strain two-dimensional echocardiography using pressure-strain loops. End points of the study were (1) response to CRT, defined as left ventricular reverse remodeling and/or absence of hospitalization for HF, and (2) all-cause death during follow-up. RESULTS Median follow-up duration was 48 months (interquartile range, 43-54 months). Median preoperative GWW was 281 mm Hg% (interquartile range, 184-388 mm Hg%). Preoperative GWW was associated with CRT response (area under the curve, 0.74; P < .0001), and a 200 mm Hg% threshold discriminated CRT nonresponders from responders with 85% specificity and 50% sensitivity, even after adjustment for known predictors of CRT response (adjusted odds ratio, 4.03; 95% CI, 1.91-8.68; P < .001). After adjustment for established predictors of outcome in patients with HF with reduced ejection fraction receiving CRT, GWW < 200 mm Hg% remained associated with a relative increased risk for all-cause death compared with GWW ≥ 200 mm Hg% (adjusted hazard ratio, 2.0; 95% CI, 1.1-3.9; P = .0245). Adding GWW to a baseline model including known predictors of outcome in CRT resulted in an improvement of this model (χ2 to improve 4.85, P = .028). The relationship between GWW and CRT response and outcome was stronger in terms of size effect and statistical significance than for other myocardial work indices. CONCLUSIONS Low preoperative GWW (<200 mm Hg%) is associated with absence of CRT response in CRT candidates and with a relative increased risk for all-cause death. GWW appears to be a promising parameter to improve selection for CRT of patients with HF with reduced ejection fraction.
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Affiliation(s)
- Clemence Riolet
- GCS-Groupement des Hôpitaux de l'Institut Catholique de Lille, Laboratoire d'Échocardiographie, Service de Cardiologie Nord, Centre des Valvulopathies, Faculté de Médecine et de Maïeutique, Université Catholique de Lille, Lille, France
| | - Aymeric Menet
- GCS-Groupement des Hôpitaux de l'Institut Catholique de Lille, Laboratoire d'Échocardiographie, Service de Cardiologie Nord, Centre des Valvulopathies, Faculté de Médecine et de Maïeutique, Université Catholique de Lille, Lille, France
| | - Amandine Mailliet
- GCS-Groupement des Hôpitaux de l'Institut Catholique de Lille, Laboratoire d'Échocardiographie, Service de Cardiologie Nord, Centre des Valvulopathies, Faculté de Médecine et de Maïeutique, Université Catholique de Lille, Lille, France
| | - Camille Binda
- GCS-Groupement des Hôpitaux de l'Institut Catholique de Lille, Laboratoire d'Échocardiographie, Service de Cardiologie Nord, Centre des Valvulopathies, Faculté de Médecine et de Maïeutique, Université Catholique de Lille, Lille, France
| | - Alexandre Altes
- GCS-Groupement des Hôpitaux de l'Institut Catholique de Lille, Laboratoire d'Échocardiographie, Service de Cardiologie Nord, Centre des Valvulopathies, Faculté de Médecine et de Maïeutique, Université Catholique de Lille, Lille, France
| | - Ludovic Appert
- GCS-Groupement des Hôpitaux de l'Institut Catholique de Lille, Laboratoire d'Échocardiographie, Service de Cardiologie Nord, Centre des Valvulopathies, Faculté de Médecine et de Maïeutique, Université Catholique de Lille, Lille, France
| | - Anne Laure Castel
- GCS-Groupement des Hôpitaux de l'Institut Catholique de Lille, Laboratoire d'Échocardiographie, Service de Cardiologie Nord, Centre des Valvulopathies, Faculté de Médecine et de Maïeutique, Université Catholique de Lille, Lille, France
| | - François Delelis
- GCS-Groupement des Hôpitaux de l'Institut Catholique de Lille, Laboratoire d'Échocardiographie, Service de Cardiologie Nord, Centre des Valvulopathies, Faculté de Médecine et de Maïeutique, Université Catholique de Lille, Lille, France
| | - Guillaume Viart
- GCS-Groupement des Hôpitaux de l'Institut Catholique de Lille, Laboratoire d'Échocardiographie, Service de Cardiologie Nord, Centre des Valvulopathies, Faculté de Médecine et de Maïeutique, Université Catholique de Lille, Lille, France
| | - Yves Guyomar
- GCS-Groupement des Hôpitaux de l'Institut Catholique de Lille, Laboratoire d'Échocardiographie, Service de Cardiologie Nord, Centre des Valvulopathies, Faculté de Médecine et de Maïeutique, Université Catholique de Lille, Lille, France
| | - Caroline Le Goffic
- GCS-Groupement des Hôpitaux de l'Institut Catholique de Lille, Laboratoire d'Échocardiographie, Service de Cardiologie Nord, Centre des Valvulopathies, Faculté de Médecine et de Maïeutique, Université Catholique de Lille, Lille, France
| | - Marie Decroocq
- GCS-Groupement des Hôpitaux de l'Institut Catholique de Lille, Laboratoire d'Échocardiographie, Service de Cardiologie Nord, Centre des Valvulopathies, Faculté de Médecine et de Maïeutique, Université Catholique de Lille, Lille, France
| | | | - Pierre Graux
- GCS-Groupement des Hôpitaux de l'Institut Catholique de Lille, Laboratoire d'Échocardiographie, Service de Cardiologie Nord, Centre des Valvulopathies, Faculté de Médecine et de Maïeutique, Université Catholique de Lille, Lille, France
| | - Christophe Tribouilloy
- EA 7517 MP3CV Jules Verne University of Picardie, Amiens, France; Centre Hospitalier Universitaire d'Amiens, Amiens, France
| | - Sylvestre Marechaux
- GCS-Groupement des Hôpitaux de l'Institut Catholique de Lille, Laboratoire d'Échocardiographie, Service de Cardiologie Nord, Centre des Valvulopathies, Faculté de Médecine et de Maïeutique, Université Catholique de Lille, Lille, France; EA 7517 MP3CV Jules Verne University of Picardie, Amiens, France.
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5
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Riolet C, Menet A, Verdun S, Altes A, Appert L, Guyomar Y, Delelis F, Ennezat PV, Guerbaai RA, Graux P, Tribouilloy C, Marechaux S. Clinical and prognostic implications of phenomapping in patients with heart failure receiving cardiac resynchronization therapy. Arch Cardiovasc Dis 2021; 114:197-210. [PMID: 33431324 DOI: 10.1016/j.acvd.2020.07.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/23/2020] [Accepted: 07/01/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Despite having an indication for cardiac resynchronization therapy according to current guidelines, patients with heart failure with reduced ejection fraction who receive cardiac resynchronization therapy do not consistently derive benefit from it. AIM To determine whether unsupervised clustering analysis (phenomapping) can identify distinct phenogroups of patients with differential outcomes among cardiac resynchronization therapy recipients from routine clinical practice. METHODS We used unsupervised hierarchical cluster analysis of phenotypic data after data reduction (55 clinical, biological and echocardiographic variables) to define new phenogroups among 328 patients with heart failure with reduced ejection fraction from routine clinical practice enrolled before cardiac resynchronization therapy. Clinical outcomes and cardiac resynchronization therapy response rate were studied according to phenogroups. RESULTS Although all patients met the recommended criteria for cardiac resynchronization therapy implantation, phenomapping analysis classified study participants into four phenogroups that differed distinctively in clinical, biological, electrocardiographic and echocardiographic characteristics and outcomes. Patients from phenogroups 1 and 2 had the most improved outcome in terms of mortality, associated with cardiac resynchronization therapy response rates of 81% and 78%, respectively. In contrast, patients from phenogroups 3 and 4 had cardiac resynchronization therapy response rates of 39% and 59%, respectively, and the worst outcome, with a considerably increased risk of mortality compared with patients from phenogroup 1 (hazard ratio 3.23, 95% confidence interval 1.9-5.5 and hazard ratio 2.49, 95% confidence interval 1.38-4.50, respectively). CONCLUSIONS Among patients with heart failure with reduced ejection fraction with an indication for cardiac resynchronization therapy from routine clinical practice, phenomapping identifies subgroups of patients with differential clinical, biological and echocardiographic features strongly linked to divergent outcomes and responses to cardiac resynchronization therapy. This approach may help to identify patients who will derive most benefit from cardiac resynchronization therapy in "individualized" clinical practice.
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Affiliation(s)
- Clémence Riolet
- Cardiology Department, Lille Catholic Hospitals, Lille Catholic University, 59160 Lomme, France
| | - Aymeric Menet
- Cardiology Department, Lille Catholic Hospitals, Lille Catholic University, 59160 Lomme, France
| | - Stéphane Verdun
- Biostatistics Department-Delegations for Clinical Research and Innovation, Lille Catholic Hospitals, Lille Catholic University, 59160 Lille, France
| | - Alexandre Altes
- Cardiology Department, Lille Catholic Hospitals, Lille Catholic University, 59160 Lomme, France
| | - Ludovic Appert
- Cardiology Department, Lille Catholic Hospitals, Lille Catholic University, 59160 Lomme, France
| | - Yves Guyomar
- Cardiology Department, Lille Catholic Hospitals, Lille Catholic University, 59160 Lomme, France
| | - François Delelis
- Cardiology Department, Lille Catholic Hospitals, Lille Catholic University, 59160 Lomme, France
| | | | - Raphaelle A Guerbaai
- Department of Public Health (DPH), Faculty of Medicine, Basel University, 4056 Basel, Switzerland
| | - Pierre Graux
- Cardiology Department, Lille Catholic Hospitals, Lille Catholic University, 59160 Lomme, France
| | - Christophe Tribouilloy
- Amiens University Hospital, 80080 Amiens, France; Laboratory MP3CV-EA 7517, University Centre for Health Research, Picardy University, 80000 Amiens, France
| | - Sylvestre Marechaux
- Cardiology Department, Lille Catholic Hospitals, Lille Catholic University, 59160 Lomme, France; Laboratory MP3CV-EA 7517, University Centre for Health Research, Picardy University, 80000 Amiens, France.
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Fixsen LS, de Lepper AGW, Strik M, van Middendorp LB, Prinzen FW, van de Vosse FN, Houthuizen P, Lopata RGP. Echocardiographic Assessment of Left Bundle Branch-Related Strain Dyssynchrony: A Comparison With Tagged MRI. ULTRASOUND IN MEDICINE & BIOLOGY 2019; 45:2063-2074. [PMID: 31060858 DOI: 10.1016/j.ultrasmedbio.2019.03.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 03/22/2019] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
Recent studies have shown the efficacy of myocardial strain estimated using speckle tracking echocardiography (STE) in predicting response to cardiac resynchronisation therapy. This study focuses on circumferential strain patterns, comparing STE-acquired strains to tagged-magnetic resonance imaging (MRI-T). Second, the effect of regularisation was examined. Two-dimensional parasternal ultrasound (US) and MRI-T data were acquired in the left ventricular short-axis view of canines before (n = 8) and after (n = 9) left bunch branch block (LBBB) induction. US-based strain analysis was performed on Digital Imaging and Communications in Medicine data at the mid-level using three overall methods ("Commercial software," "Basic block-matching," "regularised block-matching"). Moreover, three regularisation approaches were implemented and compared. MRI-T analysis was performed using SinMod. Normalised regional circumferential strain curves, based on standard six or septal/lateral segments, were analysed and cross-correlated with MRI-T data. Systolic strain (SS) and septal rebound stretch (SRS) were calculated and compared. Overall agreement of normalised circumferential strain was good between all methods on a global and regional level. All STE methods showed a bias (≥4% strain) toward higher SS estimates. Pre-LBBB, septal and lateral segment correlation was excellent between the Basic (mean ρ = 0.96) and regularised (mean ρ = 0.97) methods and MRI-T. The Commercial method showed a significant discrepancy between the two walls (septal ρ = 0.94, lateral ρ = 0.68). Correlation with MRI-T reduced between pre- and post-LBBB (Commercial ρ = 0.79, Basic ρ = 0.82, mean regularised ρ = 0.86). Septal strain patterns and SRS varied with the STE software and type of regularisation, with all STE methods estimating non-zero SRS values pre-LBBB. Absolute values showed moderate agreement, with a bias for higher strain from STE. SRS varied with the type of software and extra regularisation applied. Open efforts are needed to understand the underlying causes of differences between STE methods before standardisation can be achieved. This is particularly important given the apparent clinical value of strain-based parameters such as SRS.
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Affiliation(s)
- Louis S Fixsen
- Cardiovascular Biomechanics, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.
| | | | - Marc Strik
- Department of Physiology, Cardiovascular Research Institute Maastricht, University of Maastricht, Maastricht, The Netherlands
| | - Lars B van Middendorp
- Department of Physiology, Cardiovascular Research Institute Maastricht, University of Maastricht, Maastricht, The Netherlands
| | - Frits W Prinzen
- Department of Physiology, Cardiovascular Research Institute Maastricht, University of Maastricht, Maastricht, The Netherlands
| | - Frans N van de Vosse
- Cardiovascular Biomechanics, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Patrick Houthuizen
- Department of Cardiology, Catharina Hospital, Eindhoven, The Netherlands
| | - Richard G P Lopata
- Cardiovascular Biomechanics, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
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Heart Failure Duration Combined with Left Atrial Dimension Predicts Super-Response and Long-Term Prognosis in Patients with Cardiac Resynchronization Therapy Implantation. BIOMED RESEARCH INTERNATIONAL 2019; 2019:2983752. [PMID: 31341894 PMCID: PMC6613035 DOI: 10.1155/2019/2983752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 05/15/2019] [Indexed: 11/24/2022]
Abstract
Background Response to cardiac resynchronization therapy (CRT) varies significantly among patients. This study aimed to identify baseline characteristics that could predict super-response to CRT and to evaluate the long-term prognosis in super-responders. Methods We retrospectively reviewed the data of 73 consecutive patients who received CRT. Patients were considered as super-responders after 6-month follow-up when NYHA class reduction to I or II combined with left ventricular ejection fraction (LVEF) ≥ 50% was observed. Patients were divided into super-responders group and non-super-responders group. All-cause mortality or hospitalization for heart failure (HF) was referred to the combined end point. Results 17 (23.3%) patients were super-responders. HF duration, left atrial dimension (LAD), and left bundle branch block (LBBB) were independent predictors of super-response to CRT. The combination of HF duration and LAD could provide more robust prediction of super-response than standalone HF duration (0.899 versus 0.789, Z = 2.207, P = 0.027) or standalone LAD (0.899 versus 0.775, Z = 2.487, P = 0.013). super-responders had excellent LV reverse remodeling. The cumulative incidences of combined end point were significantly lower in the super-responders group, LAD ≤ 42mm group, and combination of HF duration ≤ 48 months and LAD ≤ 42mm group. LBBB remained associated with a lowered risk of the combined end point (HR: 0.19, 95% CI: 0.07-0.57, P = 0.003), whereas LAD was associated with a raised risk of the combined end point (HR: 1.09, 95% CI: 1.02-1.17, P = 0.014). Conclusions HF duration, LAD, and LBBB independently predicted super-response. The combination of HF duration and LAD makes more robust prediction of CRT super-response. Super-responders had excellent LV reverse remodeling and decreased the incidences of the combined end point. LBBB and LAD were independently associated with the combined end point.
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8
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Greenhalgh T, A’Court C, Shaw S. Understanding heart failure; explaining telehealth - a hermeneutic systematic review. BMC Cardiovasc Disord 2017; 17:156. [PMID: 28615004 PMCID: PMC5471857 DOI: 10.1186/s12872-017-0594-2] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 06/07/2017] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Enthusiasts for telehealth extol its potential for supporting heart failure management. But randomised trials have been slow to recruit and produced conflicting findings; real-world roll-out has been slow. We sought to inform policy by making sense of a complex literature on heart failure and its remote management. METHODS Through database searching and citation tracking, we identified 7 systematic reviews of systematic reviews, 32 systematic reviews (including 17 meta-analyses and 8 qualitative reviews); six mega-trials and over 60 additional relevant empirical studies and commentaries. We synthesised these using Boell's hermeneutic methodology for systematic review, which emphasises the quest for understanding. RESULTS Heart failure is a complex and serious condition with frequent co-morbidity and diverse manifestations including severe tiredness. Patients are often frightened, bewildered, socially isolated and variably able to self-manage. Remote monitoring technologies are many and varied; they create new forms of knowledge and new possibilities for care but require fundamental changes to clinical roles and service models and place substantial burdens on patients, carers and staff. The policy innovation of remote biomarker monitoring enabling timely adjustment of medication, mediated by "activated" patients, is based on a modernist vision of efficient, rational, technology-mediated and guideline-driven ("cold") care. It contrasts with relationship-based ("warm") care valued by some clinicians and by patients who are older, sicker and less technically savvy. Limited uptake of telehealth can be analysed in terms of key tensions: between tidy, "textbook" heart failure and the reality of multiple comorbidities; between basic and intensive telehealth; between activated, well-supported patients and vulnerable, unsupported ones; between "cold" and "warm" telehealth; and between fixed and agile care programmes. CONCLUSION The limited adoption of telehealth for heart failure has complex clinical, professional and institutional causes, which are unlikely to be elucidated by adding more randomised trials of technology-on versus technology-off to an already-crowded literature. An alternative approach is proposed, based on naturalistic study designs, application of social and organisational theory, and co-design of new service models based on socio-technical principles. Conventional systematic reviews (whose goal is synthesising data) can be usefully supplemented by hermeneutic reviews (whose goal is deepening understanding).
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Affiliation(s)
- Trisha Greenhalgh
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Primary Care Building, Woodstock Rd, Oxford, OX2 6GG UK
| | - Christine A’Court
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Primary Care Building, Woodstock Rd, Oxford, OX2 6GG UK
| | - Sara Shaw
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Primary Care Building, Woodstock Rd, Oxford, OX2 6GG UK
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9
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Menet A, Bernard A, Tribouilloy C, Leclercq C, Gevaert C, Guyomar Y, Guerbaai RA, Delelis F, Castel AL, Graux P, Ennezat PV, Donal E, Maréchaux S. Clinical significance of septal deformation patterns in heart failure patients receiving cardiac resynchronization therapy. Eur Heart J Cardiovasc Imaging 2016; 18:1388-1397. [DOI: 10.1093/ehjci/jew289] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 10/28/2016] [Indexed: 11/13/2022] Open
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10
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Menet A, Bardet-Bouchery H, Guyomar Y, Graux P, Delelis F, Castel AL, Heuls S, Cuvelier E, Gevaert C, Ennezat PV, Tribouilloy C, Maréchaux S. Prognostic importance of postoperative QRS widening in patients with heart failure receiving cardiac resynchronization therapy. Heart Rhythm 2016; 13:1636-43. [PMID: 27236025 DOI: 10.1016/j.hrthm.2016.05.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND Landmark reports have suggested that patients with QRS widening immediately after cardiac resynchronization therapy (CRT) experienced less frequently reverse left ventricular remodeling during follow-up. OBJECTIVE We sought to investigate the relationship between postoperative QRS widening relative to baseline and mortality in a prospective cohort of heart failure patients receiving CRT. METHODS A 12-lead electrocardiogram was recorded for 237 heart failure patients (New York Heart Association class II to IV, left ventricular ejection fraction ≤35%, and QRS width ≥120 ms) before and immediately after CRT device implantation. The relationships between QRS widening, all-cause and cardiovascular mortality, and echocardiographic response to CRT were studied. RESULTS During a median follow-up of 24 months, 39 patients died. Fifty patients (21%) experienced QRS widening after CRT [QRS(+) group]. During follow-up, all-cause mortality was higher in QRS(+) patients than in QRS(-) patients (36-month survival free from death 81% ± 7% vs 64% ± 16%; log rank, P = .029). After adjustment for important prognostic confounders, QRS(+) patients remained associated with an excess overall mortality (adjusted hazard ratio [HR] 2.67; 95% confidence interval 1.07-6.65; P = .035) and cardiovascular mortality (adjusted hazard ratio 3.63; 95% confidence interval 1.13-11.65; P = .03). QRS(+) patients were less frequent responders to CRT than were QRS(-) patients (20 [47%] vs 136 [83%]; P < .0001). CONCLUSION Postoperative QRS widening relative to baseline after CRT is associated with a considerable increased mortality risk during follow-up. Whether QRS narrowing should be achieved to optimize CRT placement, and thereby increase the rate of CRT responders and improve outcome, deserves further research.
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Affiliation(s)
- Aymeric Menet
- GCS-Groupement des hôpitaux de l'institut Catholique de Lille/Faculté Libre de Médecine, Département de Cardiologie, Université Catholique de Lille, Lille, France; INSERM U 1088, Université de Picardie, Amiens, France
| | - Hélène Bardet-Bouchery
- GCS-Groupement des hôpitaux de l'institut Catholique de Lille/Faculté Libre de Médecine, Département de Cardiologie, Université Catholique de Lille, Lille, France; Centre Hospitalier de la région de Saint Omer, Saint Omer, France
| | - Yves Guyomar
- GCS-Groupement des hôpitaux de l'institut Catholique de Lille/Faculté Libre de Médecine, Département de Cardiologie, Université Catholique de Lille, Lille, France
| | - Pierre Graux
- GCS-Groupement des hôpitaux de l'institut Catholique de Lille/Faculté Libre de Médecine, Département de Cardiologie, Université Catholique de Lille, Lille, France
| | - François Delelis
- GCS-Groupement des hôpitaux de l'institut Catholique de Lille/Faculté Libre de Médecine, Département de Cardiologie, Université Catholique de Lille, Lille, France
| | - Anne-Laure Castel
- GCS-Groupement des hôpitaux de l'institut Catholique de Lille/Faculté Libre de Médecine, Département de Cardiologie, Université Catholique de Lille, Lille, France
| | - Sébastien Heuls
- GCS-Groupement des hôpitaux de l'institut Catholique de Lille/Faculté Libre de Médecine, Département de Cardiologie, Université Catholique de Lille, Lille, France
| | - Estelle Cuvelier
- GCS-Groupement des hôpitaux de l'institut Catholique de Lille/Faculté Libre de Médecine, Département de Cardiologie, Université Catholique de Lille, Lille, France
| | - Cécile Gevaert
- GCS-Groupement des hôpitaux de l'institut Catholique de Lille/Faculté Libre de Médecine, Département de Cardiologie, Université Catholique de Lille, Lille, France
| | | | - Christophe Tribouilloy
- INSERM U 1088, Université de Picardie, Amiens, France; Pôle Cardiovasculaire et Thoracique, Centre Hospitalier Universitaire Amiens, Amiens, France
| | - Sylvestre Maréchaux
- GCS-Groupement des hôpitaux de l'institut Catholique de Lille/Faculté Libre de Médecine, Département de Cardiologie, Université Catholique de Lille, Lille, France; INSERM U 1088, Université de Picardie, Amiens, France.
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11
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Menet A, Guyomar Y, Ennezat PV, Graux P, Castel AL, Delelis F, Heuls S, Cuvelier E, Gevaert C, Le Goffic C, Tribouilloy C, Maréchaux S. Prognostic value of left ventricular reverse remodeling and performance improvement after cardiac resynchronization therapy: A prospective study. Int J Cardiol 2016; 204:6-11. [DOI: 10.1016/j.ijcard.2015.11.091] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 11/13/2015] [Accepted: 11/16/2015] [Indexed: 01/26/2023]
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12
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Tsai SY, Maass K, Lu J, Fishman GI, Chen S, Evans T. Efficient Generation of Cardiac Purkinje Cells from ESCs by Activating cAMP Signaling. Stem Cell Reports 2015; 4:1089-102. [PMID: 26028533 PMCID: PMC4471825 DOI: 10.1016/j.stemcr.2015.04.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 04/27/2015] [Accepted: 04/30/2015] [Indexed: 12/13/2022] Open
Abstract
Dysfunction of the specialized cardiac conduction system (CCS) is associated with life-threatening arrhythmias. Strategies to derive CCS cells, including rare Purkinje cells (PCs), would facilitate models for mechanistic studies and drug discovery and also provide new cellular materials for regenerative therapies. A high-throughput chemical screen using CCS:lacz and Contactin2:egfp (Cntn2:egfp) reporter embryonic stem cell (ESC) lines was used to discover a small molecule, sodium nitroprusside (SN), that efficiently promotes the generation of cardiac cells that express gene profiles and generate action potentials of PC-like cells. Imaging and mechanistic studies suggest that SN promotes the generation of PCs from cardiac progenitors initially expressing cardiac myosin heavy chain and that it does so by activating cyclic AMP signaling. These findings provide a strategy to derive scalable PCs, along with insight into the ontogeny of CCS development. A chemical screen was carried out for compounds that induce cardiac conduction cells Two ESC reporter lines were used to identify lead hits Sodium nitroprusside efficiently generated scalable amounts of PC-like cells By activating cAMP signaling, PCs are derived from cardiac progenitors
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Affiliation(s)
- Su-Yi Tsai
- Department of Surgery, Weill Cornell Medical College, New York, NY 10065, USA
| | - Karen Maass
- Leon H. Charney Division of Cardiology, New York University School of Medicine, New York, NY 10016, USA
| | - Jia Lu
- Leon H. Charney Division of Cardiology, New York University School of Medicine, New York, NY 10016, USA
| | - Glenn I Fishman
- Leon H. Charney Division of Cardiology, New York University School of Medicine, New York, NY 10016, USA.
| | - Shuibing Chen
- Department of Surgery, Weill Cornell Medical College, New York, NY 10065, USA.
| | - Todd Evans
- Department of Surgery, Weill Cornell Medical College, New York, NY 10065, USA.
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13
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Padeletti L, Modesti PA, Cartei S, Checchi L, Ricciardi G, Pieragnolia P, Sacchi S, Padeletti M, Alterini B, Pantaleo P, Hu X, Tenori L, Luchinat C. Metabolomic does not predict response to cardiac resynchronization therapy in patients with heart failure. J Cardiovasc Med (Hagerstown) 2014; 15:295-300. [PMID: 24699011 DOI: 10.2459/jcm.0000000000000028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
AIMS Metabolomic, a systematic study of metabolites, may be a useful tool in understanding the pathological processes that underlie the occurrence and progression of a disease. We hypothesized that metabolomic would be helpful in assessing a specific pattern in heart failure patients, also according to the underlining causes and in defining, prior to device implantation, the responder and nonresponder patient to cardiac resynchronization therapy (CRT). METHODS In this prospective study, blood and urine samples were collected from 32 heart failure patients who underwent CRT. Clinical, electrocardiography and echocardiographic evaluation was performed in each patient before CRT and after 6 months of follow-up. Thirty-nine age and sex-matched healthy individuals were chosen as control group. For each sample, 1H-NMR spectra, Nuclear Overhauser Enhancement Spectroscopy, Carr-Purcell-Meiboom-Gill and diffusion edited spectra were measured. RESULTS A different metabolomic fingerprint was demonstrated in heart failure patients compared to healthy controls with high accuracy level. Metabolomics fingerprint was similar between patients with ischemic and nonischemic dilated cardiomyopathy. At 6-month follow-up, metabolomic fingerprint was different from baseline. At follow-up, heart failure patients’ metabolomic fingerprint remained significantly different from that of healthy controls, and accuracy of cause discrimination remained low. Responders and nonresponders had a similar metabolic fingerprint at baseline and after 6 months of CRT. CONCLUSION It is possible to identify a metabolomic fingerprint characterizing heart failure patients candidate to CRT, it is independent of the different causes of the disease and it is not predictive of the response to CRT.
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14
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Chen Y, Cheng L, Yao H, Chen H, Wang Y, Zhao W, Pan C, Shu X. The myocardial ischemia evaluated by real-time contrast echocardiography may predict the response to cardiac resynchronization therapy: a large animal study. PLoS One 2014; 9:e113992. [PMID: 25469632 PMCID: PMC4254922 DOI: 10.1371/journal.pone.0113992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2014] [Accepted: 11/02/2014] [Indexed: 11/19/2022] Open
Abstract
Evidence-based criteria for applying cardiac resynchronization therapy (CRT) in patients with ischemic cardiomyopathy are still scarce. The aim of the present study was to evaluate the predictive value of real-time myocardial contrast echocardiography (RT-MCE) in a preclinical canine model of ischemic cardiomyopathy who received CRT. Ischemic cardiomyopathy was produced by ligating the first diagonal branch in 20 beagles. Dogs were subsequently divided into two groups that were either treated with bi-ventricular pacing (CRT group) or left untreated (control group). RT-MCE was performed at baseline, before CRT, and 4 weeks after CRT. Two-dimensional speckle tracking imaging was used to evaluate the standard deviation of circumferential (Cir12SD), radial (R12SD), and longitudinal (L12SD) strains of left ventricular segments at basal as well as middle levels. Four weeks later, the Cir12SD, R12SD, and myocardial blood flow (MBF) of the treated group were significantly improved compared to their non-CRT counterparts. Furthermore, MBF values measured before CRT were significantly higher in responders than in non-responders to bi-ventricular pacing. Meanwhile, no significant differences were observed between the responder and non-responder groups in terms of Cir12SD, R12SD, and L12SD. A high degree of correlation was found between MBF values before CRT and LVEF after CRT. When MBF value>24.9 dB/s was defined as a cut-off point before CRT, the sensitivity and specificity of RT-MCE in predicting the response to CRT were 83.3% and 100%, respectively. Besides, MBF values increased significantly in the CRT group compared with the control group after 4 weeks of pacing (49.8±15.5 dB/s vs. 28.5±4.6 dB/s, p<0.05). Therefore, we considered that myocardial perfusion may be superior to standard metrics of LV synchrony in selecting appropriate candidates for CRT. In addition, CRT can improve myocardial perfusion in addition to cardiac synchrony, especially in the setting of ischemic cardiomyopathy.
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Affiliation(s)
- Yongle Chen
- Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai Institute of Medical Imaging, Shanghai, PR China
| | - Leilei Cheng
- Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai Institute of Medical Imaging, Shanghai, PR China
| | - Haohua Yao
- Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai Institute of Medical Imaging, Shanghai, PR China
| | - Haiyan Chen
- Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai Institute of Medical Imaging, Shanghai, PR China
| | - Yongshi Wang
- Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai Institute of Medical Imaging, Shanghai, PR China
| | - Weipeng Zhao
- Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai Institute of Medical Imaging, Shanghai, PR China
| | - Cuizhen Pan
- Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai Institute of Medical Imaging, Shanghai, PR China
| | - Xianhong Shu
- Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai Institute of Medical Imaging, Shanghai, PR China
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15
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Schmitz B, De Maria R, Gatsios D, Chrysanthakopoulou T, Landolina M, Gasparini M, Campolo J, Parolini M, Sanzo A, Galimberti P, Bianchi M, Lenders M, Brand E, Parodi O, Lunati M, Brand SM. Identification of Genetic Markers for Treatment Success in Heart Failure Patients. ACTA ACUST UNITED AC 2014; 7:760-70. [DOI: 10.1161/circgenetics.113.000384] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Background—
Cardiac resynchronization therapy (CRT) can improve ventricular size, shape, and mass and reduce mitral regurgitation by reverse remodeling of the failing ventricle. About 30% of patients do not respond to this therapy for unknown reasons. In this study, we aimed at the identification and classification of CRT responder by the use of genetic variants and clinical parameters.
Methods and Results—
Of 1421 CRT patients, 207 subjects were consecutively selected, and CRT responder and nonresponder were matched for their baseline parameters before CRT. Treatment success of CRT was defined as a decrease in left ventricular end-systolic volume >15% at follow-up echocardiography compared with left ventricular end-systolic volume at baseline. All other changes classified the patient as CRT nonresponder. A genetic association study was performed, which identified 4 genetic variants to be associated with the CRT responder phenotype at the allelic (
P
<0.035) and genotypic (
P
<0.031) level: rs3766031 (
ATPIB1
), rs5443 (
GNB3
), rs5522 (
NR3C2
), and rs7325635 (
TNFSF11
). Machine learning algorithms were used for the classification of CRT patients into responder and nonresponder status, including combinations of the identified genetic variants and clinical parameters.
Conclusions—
We demonstrated that rule induction algorithms can successfully be applied for the classification of heart failure patients in CRT responder and nonresponder status using clinical and genetic parameters. Our analysis included information on alleles and genotypes of 4 genetic loci, rs3766031 (
ATPIB1
), rs5443 (
GNB3
), rs5522 (
NR3C2
), and rs7325635 (
TNFSF11
), pathophysiologically associated with remodeling of the failing ventricle.
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Affiliation(s)
- Boris Schmitz
- From the Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.) and Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology (B.S., M. Lenders, E.B.), University Hospital Münster, Münster, Germany; Cardiothoracic and Vascular Department, CNR Institute of Clinical Physiology, Niguarda Ca’ Granda Hospital, Milan, Italy (R.D.M., J.C., M.P., O.P.); University of Ioannina, Department of Biomedical Research, Ioannina University Campus (D.G.); Neuron
| | - Renata De Maria
- From the Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.) and Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology (B.S., M. Lenders, E.B.), University Hospital Münster, Münster, Germany; Cardiothoracic and Vascular Department, CNR Institute of Clinical Physiology, Niguarda Ca’ Granda Hospital, Milan, Italy (R.D.M., J.C., M.P., O.P.); University of Ioannina, Department of Biomedical Research, Ioannina University Campus (D.G.); Neuron
| | - Dimitris Gatsios
- From the Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.) and Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology (B.S., M. Lenders, E.B.), University Hospital Münster, Münster, Germany; Cardiothoracic and Vascular Department, CNR Institute of Clinical Physiology, Niguarda Ca’ Granda Hospital, Milan, Italy (R.D.M., J.C., M.P., O.P.); University of Ioannina, Department of Biomedical Research, Ioannina University Campus (D.G.); Neuron
| | - Theodora Chrysanthakopoulou
- From the Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.) and Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology (B.S., M. Lenders, E.B.), University Hospital Münster, Münster, Germany; Cardiothoracic and Vascular Department, CNR Institute of Clinical Physiology, Niguarda Ca’ Granda Hospital, Milan, Italy (R.D.M., J.C., M.P., O.P.); University of Ioannina, Department of Biomedical Research, Ioannina University Campus (D.G.); Neuron
| | - Maurizio Landolina
- From the Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.) and Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology (B.S., M. Lenders, E.B.), University Hospital Münster, Münster, Germany; Cardiothoracic and Vascular Department, CNR Institute of Clinical Physiology, Niguarda Ca’ Granda Hospital, Milan, Italy (R.D.M., J.C., M.P., O.P.); University of Ioannina, Department of Biomedical Research, Ioannina University Campus (D.G.); Neuron
| | - Maurizio Gasparini
- From the Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.) and Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology (B.S., M. Lenders, E.B.), University Hospital Münster, Münster, Germany; Cardiothoracic and Vascular Department, CNR Institute of Clinical Physiology, Niguarda Ca’ Granda Hospital, Milan, Italy (R.D.M., J.C., M.P., O.P.); University of Ioannina, Department of Biomedical Research, Ioannina University Campus (D.G.); Neuron
| | - Jonica Campolo
- From the Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.) and Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology (B.S., M. Lenders, E.B.), University Hospital Münster, Münster, Germany; Cardiothoracic and Vascular Department, CNR Institute of Clinical Physiology, Niguarda Ca’ Granda Hospital, Milan, Italy (R.D.M., J.C., M.P., O.P.); University of Ioannina, Department of Biomedical Research, Ioannina University Campus (D.G.); Neuron
| | - Marina Parolini
- From the Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.) and Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology (B.S., M. Lenders, E.B.), University Hospital Münster, Münster, Germany; Cardiothoracic and Vascular Department, CNR Institute of Clinical Physiology, Niguarda Ca’ Granda Hospital, Milan, Italy (R.D.M., J.C., M.P., O.P.); University of Ioannina, Department of Biomedical Research, Ioannina University Campus (D.G.); Neuron
| | - Antonio Sanzo
- From the Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.) and Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology (B.S., M. Lenders, E.B.), University Hospital Münster, Münster, Germany; Cardiothoracic and Vascular Department, CNR Institute of Clinical Physiology, Niguarda Ca’ Granda Hospital, Milan, Italy (R.D.M., J.C., M.P., O.P.); University of Ioannina, Department of Biomedical Research, Ioannina University Campus (D.G.); Neuron
| | - Paola Galimberti
- From the Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.) and Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology (B.S., M. Lenders, E.B.), University Hospital Münster, Münster, Germany; Cardiothoracic and Vascular Department, CNR Institute of Clinical Physiology, Niguarda Ca’ Granda Hospital, Milan, Italy (R.D.M., J.C., M.P., O.P.); University of Ioannina, Department of Biomedical Research, Ioannina University Campus (D.G.); Neuron
| | - Michele Bianchi
- From the Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.) and Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology (B.S., M. Lenders, E.B.), University Hospital Münster, Münster, Germany; Cardiothoracic and Vascular Department, CNR Institute of Clinical Physiology, Niguarda Ca’ Granda Hospital, Milan, Italy (R.D.M., J.C., M.P., O.P.); University of Ioannina, Department of Biomedical Research, Ioannina University Campus (D.G.); Neuron
| | - Malte Lenders
- From the Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.) and Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology (B.S., M. Lenders, E.B.), University Hospital Münster, Münster, Germany; Cardiothoracic and Vascular Department, CNR Institute of Clinical Physiology, Niguarda Ca’ Granda Hospital, Milan, Italy (R.D.M., J.C., M.P., O.P.); University of Ioannina, Department of Biomedical Research, Ioannina University Campus (D.G.); Neuron
| | - Eva Brand
- From the Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.) and Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology (B.S., M. Lenders, E.B.), University Hospital Münster, Münster, Germany; Cardiothoracic and Vascular Department, CNR Institute of Clinical Physiology, Niguarda Ca’ Granda Hospital, Milan, Italy (R.D.M., J.C., M.P., O.P.); University of Ioannina, Department of Biomedical Research, Ioannina University Campus (D.G.); Neuron
| | - Oberdan Parodi
- From the Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.) and Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology (B.S., M. Lenders, E.B.), University Hospital Münster, Münster, Germany; Cardiothoracic and Vascular Department, CNR Institute of Clinical Physiology, Niguarda Ca’ Granda Hospital, Milan, Italy (R.D.M., J.C., M.P., O.P.); University of Ioannina, Department of Biomedical Research, Ioannina University Campus (D.G.); Neuron
| | - Maurizio Lunati
- From the Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.) and Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology (B.S., M. Lenders, E.B.), University Hospital Münster, Münster, Germany; Cardiothoracic and Vascular Department, CNR Institute of Clinical Physiology, Niguarda Ca’ Granda Hospital, Milan, Italy (R.D.M., J.C., M.P., O.P.); University of Ioannina, Department of Biomedical Research, Ioannina University Campus (D.G.); Neuron
| | - Stefan-Martin Brand
- From the Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.) and Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology (B.S., M. Lenders, E.B.), University Hospital Münster, Münster, Germany; Cardiothoracic and Vascular Department, CNR Institute of Clinical Physiology, Niguarda Ca’ Granda Hospital, Milan, Italy (R.D.M., J.C., M.P., O.P.); University of Ioannina, Department of Biomedical Research, Ioannina University Campus (D.G.); Neuron
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16
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ROHACEK MARTIN, ERNE PAUL, KOBZA RICHARD, PFYFFER GABYE, FREI RENO, WEISSER MAJA. Infection of Cardiovascular Implantable Electronic Devices: Detection with Sonication, Swab Cultures, and Blood Cultures. PACING AND CLINICAL ELECTROPHYSIOLOGY: PACE 2014; 38:247-53. [DOI: 10.1111/pace.12529] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 08/16/2014] [Accepted: 08/19/2014] [Indexed: 02/01/2023]
Affiliation(s)
- MARTIN ROHACEK
- Division of Cardiology; Department of Medicine; Luzerner Kantonsspital; Lucerne Switzerland
- Department of Emergency Medicine; University Hospital Basel; Switzerland
| | - PAUL ERNE
- Division of Cardiology; Department of Medicine; Luzerner Kantonsspital; Lucerne Switzerland
| | - RICHARD KOBZA
- Division of Cardiology; Department of Medicine; Luzerner Kantonsspital; Lucerne Switzerland
| | - GABY E. PFYFFER
- Department of Medical Microbiology; Luzerner Kantonsspital; Lucerne Switzerland
| | - RENO FREI
- Division of Clinical Microbiology; Department of Laboratory Medicine; University Hospital Basel; Basel Switzerland
| | - MAJA WEISSER
- Division of Infectious Diseases & Hospital Epidemiology; University Hospital Basel; Basel Switzerland
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17
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Choudhury TR, Mathur A. The birth of 'regenerative pharmacology': a clinical perspective. Br J Pharmacol 2014; 169:239-46. [PMID: 23425309 DOI: 10.1111/bph.12128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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18
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Nistor I, Bararu I, Apavaloaie MC, Voroneanu L, Donciu MD, Kanbay M, Nagler EV, Covic A. Vasopressin receptor antagonists for the treatment of heart failure: a systematic review and meta-analysis of randomized controlled trials. Int Urol Nephrol 2014; 47:335-44. [PMID: 25281314 DOI: 10.1007/s11255-014-0855-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 09/26/2014] [Indexed: 01/08/2023]
Abstract
BACKGROUND/OBJECTIVES Elevated vasopressin may increase systemic vascular resistance and pulmonary capillary wedge pressure, subsequently decrease stroke volume and cardiac output. Vasopressin receptor antagonists may counteract these effects and improve outcomes in heart failure. We aimed to assess benefits and harms of vasopressin receptor antagonists (VRAs) versus placebo in addition to standard care in adults with heart failure (HF). METHODS We conducted a systematic review of randomized controlled trials with searches of CENTRAL and MEDLINE to January 2014 and reference lists without language restriction. Meta-analysis using a random-effects model was done for all-cause and cardiovascular mortality, hospitalization for heart failure, changes in clinical assessment of HF, serum sodium concentration (Na), kidney function and treatment-specific side effects. RESULTS We identified 13 trials and 5,525 participants. In 10 trials, participants received standard therapy for HF. In low-quality evidence, VRAs in patients with HF had no effect on all-cause mortality risk ratios (RR 0.98; CI 0.88-1.08), cardiovascular mortality (RR 1.03; CI 0.91-1.16) or change in creatinine mean difference (MD -0.01; CI -0.10 to 0.09 mg/dL), but reduced body weight by 0.8 kg from baseline (MD -0.83; CI -1.10 to -0.55 kg) and increased Na (MD 2.61; 95 % CI 1.88-3.35 mmol/L). Compared with placebo, VRAs increased the risk of adverse events by 14 % (RR 1.14; CI 1.04-1.26). Studies were generally limited to short-term follow-up with limited data available on patient important outcomes. CONCLUSIONS Vasopressin receptors antagonists may reduce body weight and increase Na but do not improve all-cause mortality, cardiovascular mortality or kidney function. In addition, acceptability of long-term treatment side effects and hospitalization appears problematic.
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Affiliation(s)
- Ionut Nistor
- Nephrology Department, University Hospital "Dr. C.I. Parhon", Iasi, Romania,
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Relationship between Two-Dimensional Speckle-Tracking Septal Strain and Response to Cardiac Resynchronization Therapy in Patients with Left Ventricular Dysfunction and Left Bundle Branch Block: A Prospective Pilot Study. J Am Soc Echocardiogr 2014; 27:501-11. [DOI: 10.1016/j.echo.2014.01.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2013] [Indexed: 12/20/2022]
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Dominguez-Rodriguez A, Abreu-Gonzalez P. Criterios de uso apropiado para la ergoespirometría en el paciente portador de dispositivos de resincronización cardiaca. Rev Esp Cardiol (Engl Ed) 2014. [DOI: 10.1016/j.recesp.2013.09.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dominguez-Rodriguez A, Abreu-Gonzalez P. Appropriate use criteria for cardiopulmonary exercise testing in patients with cardiac resynchronization devices. REVISTA ESPANOLA DE CARDIOLOGIA (ENGLISH ED.) 2014; 67:156. [PMID: 24795132 DOI: 10.1016/j.rec.2013.09.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 09/17/2013] [Indexed: 06/03/2023]
Affiliation(s)
- Alberto Dominguez-Rodriguez
- Servicio de Cardiología, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain; Universidad Europea de Canarias, Facultad de Ciencias de la Salud, Santa Cruz de Tenerife, Spain; Instituto Universitario de Tecnologías Biomédicas, Santa Cruz de Tenerife, Spain.
| | - Pedro Abreu-Gonzalez
- Instituto Universitario de Tecnologías Biomédicas, Santa Cruz de Tenerife, Spain; Universidad de La Laguna, Departamento de Fisiología, Santa Cruz de Tenerife, Spain
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de Bie MK, Ajmone Marsan N, Gaasbeek A, Bax JJ, Delgado V, Rabelink TJ, Schalij MJ, Jukema JW. Echocardiographical determinants of an abnormal spatial QRS-T angle in chronic dialysis patients. Nephrol Dial Transplant 2013; 28:3045-52. [PMID: 24092849 DOI: 10.1093/ndt/gft347] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The spatial QRS-T angle describes the relation between ventricular depolarization and repolarization. Having a wide (abnormal) angle is considered an important predictor of arrhythmic events. Given the high incidence of sudden cardiac death in dialysis patients, this parameter is of particular interest in this patient group. The objective of this study was to assess the association of (modifiable) echocardiographic parameters and an abnormal spatial QRS-T angle in dialysis patients. METHODS A total of 94 consecutive dialysis patients were included. In all patients a 12-lead electrocardiogram (ECG), a two-dimensional echocardiogram and routine blood samples were obtained. The spatial QRS-T angle was then calculated from the 12-lead ECG. An abnormal spatial QRS-T angle was defined as ≥130° in males and ≥116° in females. RESULTS An abnormal spatial QRS-T angle was present in 27 (29%) patients. Patients with an abnormal spatial angle had a lower left ventricular ejection fraction (LVEF) of 47 ± 7 versus 55 ± 6% (P < 0.001) and had a higher left ventricular (LV) dyssynchrony, with a septal to lateral (S-L) delay of peak systolic velocity of 70 inter quartile range (iIQR) (40, 100) ms versus 30 IQR (10, 70) ms (P = 0.001), respectively. Multivariate logistic regression analysis controlling for possible confounders demonstrated that LVEF [odds ratio (OR) 0.82; 95% confidence interval (CI) 0.72-0.93, P = 0.001] and LV dyssynchrony (OR 1.19 per 10 ms; 95% CI 1.03-1.38, P = 0.02) were independent determinants of an abnormal spatial QRS-T angle in this patient group. CONCLUSIONS LVEF and dyssynchrony are echocardiographic determinants of an abnormal spatial QRS-T angle in dialysis patients and might therefore represent a potential target for the prevention of sudden cardiac death in these patients.
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Affiliation(s)
- Mihály K de Bie
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
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Rethinking cardiac resynchronization therapy: The impact of ventricular dyssynchrony on outcome. Int J Cardiol 2013; 168:3932-9. [DOI: 10.1016/j.ijcard.2013.06.060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 05/16/2013] [Accepted: 06/29/2013] [Indexed: 11/17/2022]
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The amount of viable and dyssynchronous myocardium is associated with response to cardiac resynchronization therapy: initial clinical results using multiparametric ECG-gated [18F]FDG PET. Eur J Nucl Med Mol Imaging 2013; 40:1876-83. [DOI: 10.1007/s00259-013-2516-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Accepted: 07/07/2013] [Indexed: 10/26/2022]
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Liu SS, Monti J, Kargbo HM, Athar MW, Parakh K. Frontiers of therapy for patients with heart failure. Am J Med 2013; 126:6-12.e6. [PMID: 23260502 DOI: 10.1016/j.amjmed.2012.04.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Revised: 04/19/2012] [Accepted: 04/20/2012] [Indexed: 01/10/2023]
Abstract
This review broadly covers advances in heart failure, which is responsible for significant morbidity, mortality, and cost in the United States. It is a heterogeneous condition, and accurate classification helps ensure appropriate application of evidence-based therapies. Hemodynamics are important in acute heart failure syndromes and may help tailor therapy. Neurohormonal modulation forms the cornerstone of chronic systolic heart failure treatment but does not affect outcomes in diastolic heart failure where management goals emphasize optimization of central volume, blood pressure, and atrial rhythm, as well as the treatment of comorbidities. Frontiers of heart failure therapy range from advances in pharmacology (novel inotropic agents and neurohormonal modulators), to cell biology (nucleic acid-based drugs and cell therapy) to biomedical engineering (devices such as ultrafiltration, biventricular pacemakers, implantable cardiac defibrillators, remote monitoring systems, and left ventricular assist devices), and to health systems (risk stratification and integrated care of comorbidities). The ultimate frontier will be to integrate these data effectively to ensure that patients with heart failure consistently receive the best evidenced-based care possible.
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Affiliation(s)
- Stanley S Liu
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA
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Botto GL, Russo G. Effect of cardiac resynchronization therapy on quality of life: the best gets the least. Europace 2012; 14:1537-9. [DOI: 10.1093/europace/eus265] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Leclercq C. Cardiac resynchronization: what's next? Arch Cardiovasc Dis 2012; 105:335-7. [PMID: 22800717 DOI: 10.1016/j.acvd.2012.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Accepted: 05/14/2012] [Indexed: 11/25/2022]
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Kutyifa V, Breithardt OA. Evaluación del paciente que no responde al tratamiento de resincronización cardiaca: un enfoque escalonado completo. Rev Esp Cardiol 2012; 65:504-10. [DOI: 10.1016/j.recesp.2011.12.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Accepted: 12/23/2011] [Indexed: 11/28/2022]
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Leung AA, van Walraven C. Reviewing the medical literature: five notable articles in general internal medicine from 2010 and 2011. OPEN MEDICINE : A PEER-REVIEWED, INDEPENDENT, OPEN-ACCESS JOURNAL 2012; 6:e17-23. [PMID: 22629293 PMCID: PMC3330744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Accepted: 12/16/2011] [Indexed: 11/30/2022]
Abstract
Although the ongoing information explosion within medicine is indisputably beneficial, it is difficult to stay abreast of the large volume of new information being published in the peer-reviewed and grey literature. Practical strategies to organize the swelling tide of medical literature are essential for providers to recognize and incorporate new information into their practice. One strategy for managing new information is the traditional annual review, in which selected, appraised articles are presented for general consumption. Here, we present five notable articles for general internal medicine published from 1 Sept. 2010 to 31 Aug. 2011, with focused summaries of their key findings and supporting clinical vignettes to highlight their significance.
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Dharmarajan K, Maurer MS. Transthyretin cardiac amyloidoses in older North Americans. J Am Geriatr Soc 2012; 60:765-74. [PMID: 22329529 DOI: 10.1111/j.1532-5415.2011.03868.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The amyloidoses are a group of hereditary or acquired disorders caused by the extracellular deposition of insoluble protein fibrils that impair tissue structure and function. All amyloidoses result from protein misfolding, a common mechanism for disorders in older persons, including Alzheimer's disease and Parkinson's disease. Abnormalities in the protein transthyretin (TTR), a serum transporter of thyroxine and retinol, is the most common cause of cardiac amyloidoses in elderly adults. Mutations in TTR can result in familial amyloidotic cardiomyopathy, and wild-type TTR can result in senile cardiac amyloidosis. These underdiagnosed disorders are much more common than previously thought. The resulting restrictive cardiomyopathy can cause congestive heart failure, arrhythmias, and advanced conduction system disease. Although historically difficult to make, the diagnosis of TTR cardiac amyloidosis has become easier in recent years with advances in cardiac imaging and more widespread use of genetic analysis. Although therapy has largely involved supportive medical care, avoidance of potentially toxic agents, and rarely organ transplantation, the near future brings the possibility of targeted pharmacotherapies designed to prevent TTR misfolding and amyloid deposition. Because these disease-modifying agents are designed to prevent disease progression, it has become increasingly important that older persons with TTR amyloidosis be expeditiously identified and considered for enrollment in clinical registries and trials.
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Affiliation(s)
- Kumar Dharmarajan
- Division of Cardiology, Columbia University Medical Center, New York, New York 10034, USA
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