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de Souza JAF, Catai AM, de Moura-Tonello SCG, Araújo BTS, Barros AEVR, de Aguiar MIR, Campos SL, de Andrade AD, Brandão DC. Correlation between peripheral endothelial function, oxygen consumption and ventilatory efficiency in heart transplantation recipients. Heart Lung 2024; 64:208-213. [PMID: 38092582 DOI: 10.1016/j.hrtlng.2023.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 11/09/2023] [Accepted: 11/14/2023] [Indexed: 03/18/2024]
Abstract
BACKGROUND Endothelial dysfunction and peak oxygen uptake (VO2peak) are also predictors of increased risk of cardiovascular events in heart transplantation (HTx) recipients. The preservation of endothelial function may contribute to exercise tolerance. OBJECTIVE To investigate the correlation between peripheral endothelial function and exercise tolerance through VO2peak and ventilation to carbon dioxide production slope (VE / VCO2 slope) in HTx recipients. METHODS A pilot cross-sectional study was conducted with adult individuals aged 18-65 years, HTx ≥ six months after surgery, who had a stable medical condition and no changes over the last three months of immunosuppressive treatment. The patients underwent an assessment of endothelial function through PAT (EndoPAT-2000®) and performed a cardiopulmonary exercise test (CPET). RESULTS A total of 41% of the studied population presented endothelial dysfunction. The individuals were divided into two groups: the endothelial dysfunction (GED; n=9) group and the normal endothelial function (GNEF; n=13) group according to the logarithm of the reactive hyperemia index (LnRHI). There was a positive and moderate correlation between the LnRHI and VO2 peak (r=0.659, p=0.013) and a negative and moderate correlation between the LnRHI and VE/VCO2 slope (r= -0.686, p= 0.009) in the GNEF. However, no significant correlations were found in the GED. CONCLUSION The results showed that the preservation of peripheral endothelial function is significantly correlated with an increase in exercise tolerance in individuals after HTx. These findings bring important considerations for cardiovascular risk prevention and emphasize that therapeutic strategies with physical training programs must be implemented early.
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Affiliation(s)
| | - Aparecida Maria Catai
- Physiotherapy Department, Federal University of Sao Carlos (UFSCAR), São Carlos, Brazil
| | | | - Bruna T S Araújo
- Physiotherapy Department, Federal University of Pernambuco (UFPE), Recife, Brazil
| | | | | | - Shirley Lima Campos
- Physiotherapy Department, Federal University of Pernambuco (UFPE), Recife, Brazil
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2
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Spence CM, Foshaug R, Rowland S, Krysler A, Conway J, Urschel S, West L, Stickland M, Boulanger P, Spence JC, Khoury M. Evaluating a Telemedicine Video Game-Linked High-Intensity Interval Training Exercise Programme in Paediatric Heart Transplant Recipients. CJC PEDIATRIC AND CONGENITAL HEART DISEASE 2023; 2:198-205. [PMID: 37969861 PMCID: PMC10642108 DOI: 10.1016/j.cjcpc.2023.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 04/04/2023] [Indexed: 11/17/2023]
Abstract
Paediatric heart transplant recipients (HTRs) have reduced exercise capacity, physical activity (PA), health-related quality of life (HRQoL), and self-efficacy towards PA. Exercise interventions have demonstrated improvements in exercise capacity and functional status in adult HTRs, with a specific emerging interest in the role of high-intensity interval training (HIIT). Studies of exercise interventions in paediatric HTRs have been limited and nonrandomized to date. HIIT has not yet been evaluated in paediatric HTRs. We thus seek to evaluate the safety and feasibility of a randomized crossover trial of a 12-week, home-based, video game-linked HIIT intervention using a cycle ergometer with telemedicine and remote physiological monitoring capabilities (MedBIKE) in paediatric HTRs. The secondary objective is to evaluate the impact of the intervention on (1) exercise capacity, (2) PA, (3) HRQoL and self-efficacy towards PA, and (4) sustained changes in secondary outcomes at 6 and 12 months after intervention. After a baseline assessment of the secondary outcomes, participants will be randomized to receive the MedBIKE intervention (12 weeks, 36 sessions) or usual care. After the intervention and a repeated assessment, all participants will cross over. Follow-up assessments will be administered at 6 and 12 months after the MedBIKE intervention. We anticipate that the MedBIKE intervention will be feasible and safely yield sustained improvements in exercise capacity, PA, HRQoL, and self-efficacy towards PA in paediatric HTRs. This study will serve as the foundation for a larger, multicentre randomized crossover trial and will help inform exercise rehabilitation programmes for paediatric HTRs.
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Affiliation(s)
- Christopher M. Spence
- Division of Pediatric Cardiology, Department of Pediatrics, Stollery Children's Hospital, University of Alberta, Edmonton, Alberta, Canada
| | - Rae Foshaug
- Division of Pediatric Cardiology, Department of Pediatrics, Stollery Children's Hospital, University of Alberta, Edmonton, Alberta, Canada
| | - Samira Rowland
- Division of Pulmonary Medicine, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Amanda Krysler
- Division of Pediatric Cardiology, Department of Pediatrics, Stollery Children's Hospital, University of Alberta, Edmonton, Alberta, Canada
| | - Jennifer Conway
- Division of Pediatric Cardiology, Department of Pediatrics, Stollery Children's Hospital, University of Alberta, Edmonton, Alberta, Canada
| | - Simon Urschel
- Division of Pediatric Cardiology, Department of Pediatrics, Stollery Children's Hospital, University of Alberta, Edmonton, Alberta, Canada
| | - Lori West
- Division of Pediatric Cardiology, Department of Pediatrics, Stollery Children's Hospital, University of Alberta, Edmonton, Alberta, Canada
| | - Michael Stickland
- Division of Pulmonary Medicine, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Pierre Boulanger
- Department of Computing Science, Faculty of Science, University of Alberta, Edmonton, Alberta, Canada
| | - John C. Spence
- Sedentary Living Laboratory, Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, Alberta, Canada
| | - Michael Khoury
- Division of Pediatric Cardiology, Department of Pediatrics, Stollery Children's Hospital, University of Alberta, Edmonton, Alberta, Canada
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3
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Agdamag AC, Van Iterson EH, Tang WHW, Finet JE. Prognostic Role of Metabolic Exercise Testing in Heart Failure. J Clin Med 2023; 12:4438. [PMID: 37445473 DOI: 10.3390/jcm12134438] [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: 05/22/2023] [Revised: 06/28/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023] Open
Abstract
Heart failure is a clinical syndrome with significant heterogeneity in presentation and severity. Serial risk-stratification and prognostication can guide management decisions, particularly in advanced heart failure, when progression toward advanced therapies or end-of-life care is warranted. Each currently utilized prognostic marker carries its own set of challenges in acquisition, reproducibility, accuracy, and significance. Left ventricular ejection fraction is foundational for heart failure syndrome classification after clinical diagnosis and remains the primary parameter for inclusion in most clinical trials; however, it does not consistently correlate with symptoms and functional capacity, which are also independently prognostic in this patient population. Utilizing the left ventricular ejection fraction as the sole basis of prognostication provides an incomplete characterization of this condition and is prone to misguide medical decision-making when used in isolation. In this review article, we survey and exposit the important role of metabolic exercise testing across the heart failure spectrum, as a complementary diagnostic and prognostic modality. Metabolic exercise testing, also known as cardiopulmonary exercise testing, provides a comprehensive evaluation of the multisystem (i.e., neurological, respiratory, circulatory, and musculoskeletal) response to exercise performance. These differential responses can help identify the predominant contributors to exercise intolerance and exercise symptoms. Additionally, the aerobic exercise capacity (i.e., oxygen consumption during exercise) is directly correlated with overall life expectancy and prognosis in many disease states. Specifically in heart failure patients, metabolic exercise testing provides an accurate, objective, and reproducible assessment of the overall circulatory sufficiency and circulatory reserve during physical stress, being able to isolate the concurrent chronotropic and stroke volume responses for a reliable depiction of the circulatory flow rate in real time.
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Affiliation(s)
- Arianne Clare Agdamag
- Section of Heart Failure and Transplantation Medicine, Robert and Suzanne Tomsich Department of Cardiovascular Medicine, Miller Family Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Erik H Van Iterson
- Section of Preventive Cardiology and Rehabilitation, Robert and Suzanne Tomsich Department of Cardiovascular Medicine, Miller Family Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - W H Wilson Tang
- Section of Heart Failure and Transplantation Medicine, Robert and Suzanne Tomsich Department of Cardiovascular Medicine, Miller Family Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - J Emanuel Finet
- Section of Heart Failure and Transplantation Medicine, Robert and Suzanne Tomsich Department of Cardiovascular Medicine, Miller Family Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH 44195, USA
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4
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Costa R, Moreira E, Silva Cardoso J, Azevedo LF, Ribeiro JA, Pinto R. Effectiveness of Exercise-Based Cardiac Rehabilitation for Heart
Transplant Recipients: A Systematic Review and Meta-Analysis. Health Serv Insights 2023; 16:11786329231161482. [PMID: 36968658 PMCID: PMC10034295 DOI: 10.1177/11786329231161482] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 02/16/2023] [Indexed: 03/24/2023] Open
Abstract
Background: Heart Transplant (HTx) is the ultimate chance of life for end stage Heart
Failure (HF). Exercise training has consistently shown the potential to
improve functional capacity in various chronic heart diseases. Still, the
evidence in HTx recipients is scarcer. This study aims to systematically
review the literature to evaluate the effectiveness and safety of
Exercise-based Cardiac Rehabilitation (EBCR) in HTx recipients and to
identify possible moderators of success. Methods: We conducted a systematic review and meta-analysis of randomized controlled
trials on the effect and safety of EBCR in adult HTx recipients. The primary
outcome was functional capacity, measured by Peak Oxygen Uptake (pVO2). We
searched CENTRAL, MEDLINE, Embase, Scopus, and Web of Knowledge databases
until December 2020, reviewed references of relevant articles and contacted
experts. Usual care (UC), the different dosages of exercise regimens and
alternative settings were allowed as comparators. A quantitative synthesis
of evidence was performed using random-effects meta-analyses. Results: A total of 11 studies with 404 patients were included. Nine studies
comprising 306 patients compared EBCR with usual care. They showed that EBCR
improved pVO2 compared to usual care (Mean Difference [MD] 3.03 mL/kg/min,
95% CI [2.28-3.77]; I2 = 32%). In the subgroup
analysis, including length of intervention and timing of enrollment after
HTx, no significant moderator was found. Two trials, with 98 patients total,
compared High Intensity Interval Training (HIIT) and Moderate Intensity
Continuous Training (MICT). HIIT attained a significant edge over MICT (MD
2.23 mL/kg/min, 95% CI [1.79-2.67]; I2 = 0%). No
major adverse events associated with EBCR were reported. Conclusion: We found moderate quality evidence suggesting EBCR has a significant benefit
on functional capacity improvement HTx recipients at the short-term. HIIT
showed superiority when compared to MICT. Research focusing long term
outcomes and standardized protocols are needed to improve evidence on EBCR
effectiveness.
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Affiliation(s)
- Rúben Costa
- Faculty of Medicine, University of
Porto, Porto, Portugal
- Department of Dermatology and
Venereology, Centro Hospitalar Universitário de São João, Porto, Portugal
- Rúben Alexandre Nogueira Costa, Centre for
Health Technology and Services Research, Centro Hospitalar Universitário São
João, Rua Dr. Plácido da Costa, Porto 4200-450, Portugal.
| | - Emília Moreira
- CINTESIS, Centre for Health Technology
and Services Research, Faculty of Medicine, University of Porto, Porto,
Portugal
- RISE: Health Research Network
| | - José Silva Cardoso
- CINTESIS, Centre for Health Technology
and Services Research, Faculty of Medicine, University of Porto, Porto,
Portugal
- RISE: Health Research Network
- Department of Medicine, Faculty of
Medicine, University of Porto, Porto, Portugal
- Department of Cardiology, Centro
Hospitalar Universitário de São João, Porto, Portugal
| | - Luís Filipe Azevedo
- CINTESIS, Centre for Health Technology
and Services Research, Faculty of Medicine, University of Porto, Porto,
Portugal
- RISE: Health Research Network
- Department of Community Medicine,
Information and Health Decision Sciences, Faculty of Medicine, University of Porto,
Portugal
| | - João Alves Ribeiro
- Faculty of Engineering, University of
Porto, Porto, Portugal
- MIT Portugal Ph.D. candidate, Faculty
of Engineering, University of Porto, Porto, Portugal
| | - Roberto Pinto
- Department of Cardiology, Centro
Hospitalar Universitário de São João, Porto, Portugal
- Department of Biomedicine, Faculty of
Medicine, University of Porto, Porto, Portugal
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5
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Early Cardiopulmonary Fitness after Heart Transplantation as a Determinant of Post-Transplant Survival. J Clin Med 2023; 12:jcm12010366. [PMID: 36615166 PMCID: PMC9821085 DOI: 10.3390/jcm12010366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/28/2022] [Accepted: 12/29/2022] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Decreased peak oxygen consumption during exercise (peak Vo2) is a well-established prognostic marker for mortality in ambulatory heart failure. After heart transplantation, the utility of peak Vo2 as a marker of post-transplant survival is not well established. METHODS AND RESULTS We performed a retrospective analysis of adult heart transplant recipients at the Hospital of the University of Pennsylvania who underwent cardiopulmonary exercise testing within a year of transplant between the years 2000 to 2011. Using time-to-event models, we analyzed the hazard of mortality over nearly two decades of follow-up as a function of post-transplant percent predicted peak Vo2 (%Vo2). A total of 235 patients met inclusion criteria. The median post-transplant %Vo2 was 49% (IQR 42 to 60). Each standard deviation (±14%) increase in %Vo2 was associated with a 32% decrease in mortality in adjusted models (HR 0.68, 95% CI 0.53 to 0.87, p = 0.002). A %Vo2 below 29%, 64% and 88% predicted less than 80% survival at 5, 10, and 15 years, respectively. CONCLUSIONS Post-transplant peak Vo2 is a highly significant prognostic marker for long-term post-transplant survival. It remains to be seen whether decreased peak Vo2 post-transplant is modifiable as a target to improve post-transplant longevity.
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Negreanu K, Wang ZQ, Campanelli J, Zappia A, Massierer D, Spahija J, Janaudis-Ferreira T. Inclusion of Exercise Prescription in Solid Organ Transplant in Physical Therapy Curricula Across Canadian Universities: A National Survey. Physiother Can 2022. [DOI: 10.3138/ptc-2020-0118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Purpose : This study evaluated the extent of education about exercise prescription for patients with solid organ transplant (SOT) provided in physical therapy (PT) entry-level programmes across Canadian universities. The nature (content being taught), delivery (modes used to disseminate information), time dedicated to the topic, and opinions of educators were explored. Method : A cross-sectional survey was emailed to 36 educators at Canadian universities. The survey questions related to the nature, delivery, and time dedicated to SOT exercise prescription, and the opinions of educators. Results : The response rate was 93%. Educators reported that lung and heart transplantation were taught the most, followed by kidney and liver, with little to no emphasis on pancreas transplants. This material was mainly taught at the graduate level and as part of cardiopulmonary courses with minimal emphasis on practical skills. Aerobic exercise is the main exercise prescription being taught. The main barrier to offering more SOT prescription education experienced by educators was the lack of available class time. Conclusions : SOT exercise prescription is not extensively covered in PT curricula and does not include all organ groups to the same extent. Students have few practical opportunities, which are important to gain the abilities and confidence to treat this population. The development of a continuing education course could promote greater knowledge.
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Affiliation(s)
- Koty Negreanu
- School of Physical and Occupational Therapy, McGill University, Montreal, Quebec, Canada
| | - Zhi Qi Wang
- School of Physical and Occupational Therapy, McGill University, Montreal, Quebec, Canada
| | - Julia Campanelli
- School of Physical and Occupational Therapy, McGill University, Montreal, Quebec, Canada
| | - Amanda Zappia
- School of Physical and Occupational Therapy, McGill University, Montreal, Quebec, Canada
| | - Daniela Massierer
- School of Physical and Occupational Therapy, McGill University, Montreal, Quebec, Canada
- Translational Research in Respiratory Diseases Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Jadranka Spahija
- School of Physical and Occupational Therapy, McGill University, Montreal, Quebec, Canada
| | - Tania Janaudis-Ferreira
- School of Physical and Occupational Therapy, McGill University, Montreal, Quebec, Canada
- Translational Research in Respiratory Diseases Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
- Canadian Donation and Transplantation Research Program, Edmonton, Alberta, Canada
- Centre for Outcomes Research and Evaluation, McGill University Health Centre, Montreal, Quebec, Canada
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7
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Shi X, Chen X, Qiu X, Luo W, Luo X, Liu H, Geng Q, Ma H, Xue L, Guo L. Effect of High-Intensity Interval Training, Moderate Continuous Training, or Guideline-Based Physical Activity on Peak Oxygen Uptake and Myocardial Fibrosis in Patients With Myocardial Infarction: Protocol for a Randomized Controlled Trial. Front Cardiovasc Med 2022; 9:860071. [PMID: 35479268 PMCID: PMC9035926 DOI: 10.3389/fcvm.2022.860071] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 03/04/2022] [Indexed: 11/30/2022] Open
Abstract
Introduction High-intensity interval training (HIIT) is an emerging method of cardiac rehabilitation, which is more and more popular in recent years. Research into the effect of HIIT on peak oxygen uptake (VO2 peak) and myocardial fibrosis among patients with myocardial infarction (MI) is lacking. Here, we describe the rationale along with the protocol for a clinical trial to test the following hypotheses: (1) compared with the control group, VO2 peak will be increased in both the moderate-intensity continuous training (MICT) and HIIT groups and (2) compared with the control group, myocardial fibrosis due to MI will be improved by HIIT and MICT. Methods and Analysis This is a single-center, randomized controlled clinical trial. In total, 180 patients with MI are to be recruited for this study. VO2 peak will be tested by cardiopulmonary exercise testing (CPET) and myocardial fibrosis will be evaluated by cardiac MR. A variety of blood and psychometric tests and also the peripheral arterial tonometry, reactive hyperemia index for microvascular endothelial function, and microvascular blockage or digital vasomotor response are included. Ethics and Dissemination The ethics committee of the Guangdong Provincial People's Hospital has authorized this mechanistic clinical research. Peer-reviewed articles and conference presentations will be used to disseminate the findings. Trial Registration Number NCT04863677.
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Affiliation(s)
- Xiaohe Shi
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xianyuan Chen
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xinfan Qiu
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Wei Luo
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xinyi Luo
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Hui Liu
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Qingshan Geng
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Huan Ma
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- *Correspondence: Huan Ma
| | - Ling Xue
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- Ling Xue
| | - Lan Guo
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- Lan Guo
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8
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Yu AKD, Kilic F, Dhawan R, Sidhu R, Elazrag SE, Bijoora M, Sekhar S, Makaram Ravinarayan S, Mohammed L. High-Intensity Interval Training Among Heart Failure Patients and Heart Transplant Recipients: A Systematic Review. Cureus 2022; 14:e21333. [PMID: 35186591 PMCID: PMC8849491 DOI: 10.7759/cureus.21333] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 01/17/2022] [Indexed: 12/18/2022] Open
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9
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Iglesias D, Masson W, Barbagelata L, Rossi E, Mora M, Cornejo G, Lagoria J, Belziti C, Vulcano N, Marenchino R, Pizarro R, Ventura H. Prognostic value of cardiopulmonary exercise test after heart transplantation. Clin Transplant 2021; 35:e14387. [PMID: 34153128 DOI: 10.1111/ctr.14387] [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: 01/04/2021] [Revised: 03/18/2021] [Accepted: 06/15/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND The clinical utility of cardiopulmonary exercise testing (CPET) has not been extensively studied yet in heart transplantation (HTX) patients. OBJECTIVE To analyze the predictive value of the CPET on hospitalizations and mortality in HTX recipients. METHODS A retrospective cohort was performed from a secondary database. Patients > 18 years with HTX who underwent a CPET between 3 and 12 months after transplantation were included. Time to the first primary endpoint (HTX-related hospitalization) was analyzed and adjusted using Cox proportional hazards regression model. RESULTS A total of 122 patients (mean age 50.1 years, 77.0% men) were included. Fifty-seven patients (46.7%) had the primary endpoint. Peak VO2 (HR .95; CI 95% .90-.99, P = .03), oxygen pulse (HR .57; CI 95% .34-.96, P = .03) and predicted VO2 (HR .97; CI 95% .96-.99, P = .002) were associated with the endpoint. We did not find a significant association between the other variables and the outcome. CONCLUSION In HTX recipients, peak VO2 , oxygen pulse, and predicted VO2 were independently associated with hospitalizations at follow up.
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Affiliation(s)
- Diego Iglesias
- Cardiology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Walter Masson
- Cardiology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Leandro Barbagelata
- Cardiology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Emiliano Rossi
- Cardiology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Mishel Mora
- Cardiology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Guillermo Cornejo
- Cardiology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Juan Lagoria
- Cardiology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Cesar Belziti
- Cardiology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Norberto Vulcano
- Cardiology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Ricardo Marenchino
- Cardiovascular Surgery Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Rodolfo Pizarro
- Cardiology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Hector Ventura
- Section Cardiomyopathy and Heart Transplantation, Ochsner Clinic Foundation, New Orleans, Louisiana, USA
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10
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Bürker BS, Malt UF, Gude E, Grov I, Relbo Authen A, Dew MA, Gullestad L. Symptoms of anxiety after heart transplantation and their association with mortality: A secondary analysis. Clin Transplant 2021; 35:e14323. [PMID: 33882158 DOI: 10.1111/ctr.14323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 03/30/2021] [Accepted: 04/12/2021] [Indexed: 01/06/2023]
Abstract
BACKGROUND Few studies, with inconclusive results, have examined the association of anxiety with mortality after heart transplantation (HTx). We examined whether anxiety symptoms, measured several years after HTx, are associated with increased mortality during long-term follow-up. METHODS Anxiety symptoms were measured with the anxiety subscale of the Symptom Checklist-90-R (SCL-90-R) in 142 HTx recipients at a mean of 5.7 years (SD: 3.9) after HTx. Anxiety symptoms' impact on mortality during follow-up for up to 18.6 years was examined with Cox proportional hazard models. We accounted for relevant sociodemographic and clinical variables, including depressive symptoms (measured by the depression subscale of the SCL-90-R), in the multivariate analyses. In additional analyses, we explored the combined effect of anxious and depressive symptomatology. RESULTS Anxiety symptoms were not significantly associated with mortality (univariate analysis: HR (95% CI): 1.04 (0.75-1.45); p = .813). Exploration of the combined effect of anxious and depressive symptomatology on mortality rendered non-significant results. Depressive symptoms were independently associated with mortality (multivariate analysis: HR (95% CI): 1.86 (1.07-3.24); p = .028). CONCLUSIONS Depressive symptoms' negative impact on survival after HTx was confirmed, while anxiety symptoms were not significantly associated with mortality during long-term follow-up. Anxiety symptoms' predictive role after HTx requires further study.
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Affiliation(s)
- Britta S Bürker
- Department of Cardiology, Oslo University Hospital - Rikshospitalet, Oslo, Norway.,Department of Psychiatry, Nordland Hospital Trust Bodø, Bodø, Norway
| | - Ulrik F Malt
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Section for C-L psychiatry and Psychosomatic Medicine, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Einar Gude
- Department of Cardiology, Oslo University Hospital - Rikshospitalet, Oslo, Norway
| | - Ingelin Grov
- Department of Cardiology, Oslo University Hospital - Rikshospitalet, Oslo, Norway
| | - Anne Relbo Authen
- Department of Cardiology, Oslo University Hospital - Rikshospitalet, Oslo, Norway
| | - Mary Amanda Dew
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Lars Gullestad
- Department of Cardiology, Oslo University Hospital - Rikshospitalet, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,KG Jebsen Center for Cardiac Research and Center for Heart Failure Research, University of Oslo, Oslo, Norway
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11
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Kirsten J, Wais V, Schulz SV, Sala E, Treff G, Bunjes D, Steinacker JM. Sarcopenia Screening Allows Identifying High-Risk Patients for Allogenic Stem Cell Transplantation. Cancers (Basel) 2021; 13:cancers13081771. [PMID: 33917738 PMCID: PMC8068111 DOI: 10.3390/cancers13081771] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 03/29/2021] [Accepted: 04/06/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Allogenic stem cell transplantation is a treatment option for various hematological diseases. Due to the intensity of the therapy regimes used, there is a substantial therapy associated mortality and morbidity. Therefore, it is crucial to identify patients with increased risk for treatment associated complications. Sarcopenia, defined as the loss of muscle mass and strength is a risk factor in various diseases. Aim of our study was to implement and evaluate the predictive power of a sarcopenia assessment, based on muscle mass, muscle strength and aerobic capacity (by measuring peak oxygen uptake), on all-cause and non-relapse mortality. A total of 178 patients were screened, with 28% suffering from sarcopenia before transplantation. Our results show a three-fold increase in all-cause and non-relapse mortality in this subpopulation compared to non-sarcopenic patients within a 12-month follow up. The importance of physical performance status demonstrated, raises the question, if exercise interventions might even allow to decrease mortality and morbidity. Abstract Allogenic stem cell transplantation (aSCT) is the only potentially curative treatment for high-risk hematological diseases. Despite advancements in supportive measures, aSCT outcome is still affected by considerable transplant-related mortality. We implemented a new sarcopenia assessment prior to aSCT to evaluate its predictive capability for all-cause and non-relapse mortality. Therefore all patients initially scheduled for aSCT within a 25-month period were screened during pre-transplantation-routine for muscle mass, grip strength, and aerobic capacity (AC) by measuring peak oxygen uptake (VO2peak). Patients were assigned to one of five groups adapted according current sarcopenia guidelines. Primary endpoints were all-cause and non-relapse mortality within a follow up time of up to 12 months. A total of 178 patients were included and rated as normal (n = 48), impaired aerobic capacity (n = 56), pre-sarcopenic (n = 26), sarcopenic (n = 27), and severe sarcopenic (n = 22) without significant age-differences between groups. Patients presenting with sarcopenia showed a significant three-fold increase in all-cause and non-relapse mortality compared to patients with normal screening results. AC showed to be the strongest single predictor with a more than two-fold increase of mortality for low AC. We conclude that risk stratification based on combination of muscle mass, grip strength, and AC allowed identifying a subgroup with increased risk for complications in patients undergoing aSCT.
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Affiliation(s)
- Johannes Kirsten
- Center for Internal Medicine, Division of Sports and Rehabilitation Medicine, Ulm University Medical Center, 89073 Ulm, Germany; (S.V.W.S.); (G.T.); (J.M.S.)
- Correspondence:
| | - Verena Wais
- Unit for Allogenic Blood Stem Cell and Bone Marrow Transplants, Clinic for Internal Medicine III, Center for Internal Medicine, Ulm University Medical Center, 89073 Ulm, Germany; (V.W.); (E.S.); (D.B.)
| | - Sebastian V.W. Schulz
- Center for Internal Medicine, Division of Sports and Rehabilitation Medicine, Ulm University Medical Center, 89073 Ulm, Germany; (S.V.W.S.); (G.T.); (J.M.S.)
| | - Elisa Sala
- Unit for Allogenic Blood Stem Cell and Bone Marrow Transplants, Clinic for Internal Medicine III, Center for Internal Medicine, Ulm University Medical Center, 89073 Ulm, Germany; (V.W.); (E.S.); (D.B.)
| | - Gunnar Treff
- Center for Internal Medicine, Division of Sports and Rehabilitation Medicine, Ulm University Medical Center, 89073 Ulm, Germany; (S.V.W.S.); (G.T.); (J.M.S.)
| | - Donald Bunjes
- Unit for Allogenic Blood Stem Cell and Bone Marrow Transplants, Clinic for Internal Medicine III, Center for Internal Medicine, Ulm University Medical Center, 89073 Ulm, Germany; (V.W.); (E.S.); (D.B.)
| | - Jürgen M. Steinacker
- Center for Internal Medicine, Division of Sports and Rehabilitation Medicine, Ulm University Medical Center, 89073 Ulm, Germany; (S.V.W.S.); (G.T.); (J.M.S.)
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12
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Knuiman P, Straw S, Gierula J, Koshy A, Roberts LD, Witte KK, Ferguson C, Bowen TS. Quantifying the relationship and contribution of mitochondrial respiration to systemic exercise limitation in heart failure. ESC Heart Fail 2021; 8:898-907. [PMID: 33609003 PMCID: PMC8006730 DOI: 10.1002/ehf2.13272] [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: 10/30/2020] [Revised: 01/12/2021] [Accepted: 02/04/2021] [Indexed: 02/06/2023] Open
Abstract
AIMS Heart failure with reduced ejection fraction (HFrEF) induces skeletal muscle mitochondrial abnormalities that contribute to exercise limitation; however, specific mitochondrial therapeutic targets remain poorly established. This study quantified the relationship and contribution of distinct mitochondrial respiratory states to prognostic whole-body measures of exercise limitation in HFrEF. METHODS AND RESULTS Male patients with HFrEF (n = 22) were prospectively enrolled and underwent ramp-incremental cycle ergometry cardiopulmonary exercise testing to determine exercise variables including peak pulmonary oxygen uptake (V̇O2peak ), lactate threshold (V̇O2LT ), the ventilatory equivalent for carbon dioxide (V̇E /V̇CO2LT ), peak circulatory power (CircPpeak ), and peak oxygen pulse. Pectoralis major was biopsied for assessment of in situ mitochondrial respiration. All mitochondrial states including complexes I, II, and IV and electron transport system (ETS) capacity correlated with V̇O2peak (r = 0.40-0.64; P < 0.05), V̇O2LT (r = 0.52-0.72; P < 0.05), and CircPpeak (r = 0.42-0.60; P < 0.05). Multiple regression analysis revealed that combining age, haemoglobin, and left ventricular ejection fraction with ETS capacity could explain 52% of the variability in V̇O2peak and 80% of the variability in V̇O2LT , respectively, with ETS capacity (P = 0.04) and complex I (P = 0.01) the only significant contributors in the model. CONCLUSIONS Mitochondrial respiratory states from skeletal muscle biopsies of patients with HFrEF were independently correlated to established non-invasive prognostic cycle ergometry cardiopulmonary exercise testing indices including V̇O2peak , V̇O2LT , and CircPpeak . When combined with baseline patient characteristics, over 50% of the variability in V̇O2peak could be explained by the mitochondrial ETS capacity. These data provide optimized mitochondrial targets that may attenuate exercise limitations in HFrEF.
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Affiliation(s)
- Pim Knuiman
- Leeds School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK
| | - Sam Straw
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - John Gierula
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Aaron Koshy
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Lee D Roberts
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Klaus K Witte
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Carrie Ferguson
- Leeds School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK
| | - Thomas Scott Bowen
- Leeds School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK
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13
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Conceição LSR, Gois CO, Fernandes RES, Martins-Filho PRS, Gomes M, Neves VR, Carvalho VO. Effect of High-Intensity Interval Training on Aerobic Capacity and Heart Rate Control of Heart Transplant Recipients: a Systematic Review with Meta-Analysis. Braz J Cardiovasc Surg 2021; 36:86-93. [PMID: 33113314 PMCID: PMC7918397 DOI: 10.21470/1678-9741-2019-0420] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION Heart transplantation (HTx) is the gold standard procedure for selected individuals with refractory heart failure. Highintensity interval training (HIIT) is safe and allows patients to exercise in high intensity for longer time when compared to moderateintensity continuous training (MICT). The primary aim of this study was to perform a systematic review and meta-analysis about the effect of HIIT compared to MICT on exercise capacity, peak heart rate, and heart rate reserve in HTx recipients. Secondarily, we pooled data comparing MICT and no exercise training in these patients. METHODS This systematic review followed the standardization of the Preferred Reporting Items for Systematic Reviews and Metaanalyses statement and the Cochrane Collaboration Handbook. We presented the treatment effects of HIIT on the outcomes of interest as mean difference (MD) and 95% confidence interval (CI). Metaanalysis was performed using the random-effects, generic inverse variance method. RESULTS HIIT improved peak oxygen consumption (peakVO2) (MD = 2.1; 95% CI 1.1, 3.1; P<0.0001), peak heart rate (MD = 3.4; 95% CI 0.8, 5.9; P=0.009), and heart rate reserve (MD = 4.8; 95% CI -0.05, 9.6; P=0.05) compared to MICT. Improvements on peakVO2 (MD = 3.5; 95% CI 2.3, 4.7; P<0.00001) and peak heart rate (MD = 5.6; 95% CI 1.6, 9.6; P=0.006) were found comparing HIIT and no exercise training. CONCLUSION Current available evidence suggests that HIIT leads to improvements on peakVO2, peak heart rate, and heart rate reserve compared to MICT in HTx recipients. However, the superiority of HIIT should be tested in isocaloric protocols.
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Affiliation(s)
- Lino Sergio Rocha Conceição
- Department of Physical Therapy, Universidade Federal de Sergipe (UFS), São Cristóvão, Sergipe, Brazil.,Post-Graduation Program in Health Sciences, Universidade Federal de Sergipe (UFS), São Cristóvão, Sergipe, Brazil.,The GREAT Group (GRupo de Estudos em ATividade física), Universidade Federal de Sergipe (UFS), São Cristóvão, Sergipe, Brazil
| | - Caroline Oliveira Gois
- Department of Physical Therapy, Universidade Federal de Sergipe (UFS), São Cristóvão, Sergipe, Brazil.,Post-Graduation Program in Health Sciences, Universidade Federal de Sergipe (UFS), São Cristóvão, Sergipe, Brazil.,The GREAT Group (GRupo de Estudos em ATividade física), Universidade Federal de Sergipe (UFS), São Cristóvão, Sergipe, Brazil
| | - Raiane Eunice Santos Fernandes
- Department of Physical Therapy, Universidade Federal de Sergipe (UFS), São Cristóvão, Sergipe, Brazil.,Post-Graduation Program in Health Sciences, Universidade Federal de Sergipe (UFS), São Cristóvão, Sergipe, Brazil.,The GREAT Group (GRupo de Estudos em ATividade física), Universidade Federal de Sergipe (UFS), São Cristóvão, Sergipe, Brazil
| | | | - Mansueto Gomes
- Department of Physical Therapy, Universidade Federal da Bahia (UFBa), Salvador, Bahia, Brazil
| | | | - Vitor Oliveira Carvalho
- Department of Physical Therapy, Universidade Federal de Sergipe (UFS), São Cristóvão, Sergipe, Brazil.,Post-Graduation Program in Health Sciences, Universidade Federal de Sergipe (UFS), São Cristóvão, Sergipe, Brazil.,The GREAT Group (GRupo de Estudos em ATividade física), Universidade Federal de Sergipe (UFS), São Cristóvão, Sergipe, Brazil
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14
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Cardiac Rehabilitation in Heart Failure. ACTA ACUST UNITED AC 2021; 3:1-14. [PMID: 36263110 PMCID: PMC9536716 DOI: 10.36628/ijhf.2020.0021] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 08/06/2020] [Accepted: 09/01/2020] [Indexed: 12/15/2022]
Abstract
Heart failure (HF) is a complex clinical syndrome caused by a structural and/or functional cardiac abnormality, resulting in reduced organ perfusion. The goals of treatment in patients with HF are to improve functional capacity and quality of life, and to reduce mortality. Cardiac rehabilitation (CR) including exercise training is one of the treatment options, and current guidelines recommend CR as safe and effective for patients with HF. CR has been known to improve exercise capacity and quality of life, minimize HF progression, and lower mortality in patients with HF. Improvement of vascular endothelial function, activation of the neurohormonal system, increase of mitochondrial oxygen utilization in peripheral muscles, and increase of chronotropic responses are possible mechanisms of the beneficial effects of exercise-based CR in HF. Although CR has been shown to decrease morbidity and mortality, it is underutilized in clinical practice. Despite the existence of concrete evidence of clinical benefits, the CR participation rates of patients with HF range from only 14% to 43% worldwide, with high dropout rates after enrollment. These low participation rates have been attributed to several barriers, including patient factors, professional factors, and service factors. The motivation for participating in CR and for overcoming the patients' barriers for CR before discharge should be provided to each patient. Current guidelines strongly recommend applying a CR program to all eligible patients with HF.
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15
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de Lima JB, Soares DDS, Ferrari F, Carvas Junior N, Carvalho G, Tobar Leitão SA, Goldraich LA, Clausell N, Stein R. Exercise training modalities for heart transplant recipients: a systematic review and network meta-analysis protocol. BMJ Open 2020; 10:e044975. [PMID: 33376184 PMCID: PMC7778772 DOI: 10.1136/bmjopen-2020-044975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
INTRODUCTION Heart transplantation is the gold standard treatment for selected patients with end-stage heart failure. Although this procedure can improve quality and prolong life expectancy, several of these patients persist with decreased exercise tolerance. Evidence suggests that exercise training can bring multifactorial benefits to heart transplant (HTx) recipients. However, it is unclear that exercise modality should be preferred. Therefore, the aim of this systematic review and network meta-analysis is to compare the efficacy and safety of different training modalities in HTx recipients. METHODS AND ANALYSIS We will perform a comprehensive literature search in PubMed/MEDLINE, Embase, The Cochrane Library, CINAHL, Scopus, SportDISCUS, Web of Science Core Collection and PEDro from inception until November 2020. Two registries (ClinicalTrials.gov and REBEC) will also be searched for potential results in unpublished studies. There will be no restriction on language, date of publication, publication status or sample size. We will include randomised controlled trials enrolling adult HTx recipients with the presence of at least one exercise training group, which might be compared with another training modality and/or a non-exercise control group for a minimum of 4 weeks of intervention. The primary outcomes will be peak oxygen consumption and occurrence of adverse events. As secondary outcomes, the interaction between pulmonary ventilation, pulmonary perfusion and cardiac output, oxygen uptake efficiency slope, heart rate response, oxygen pulse, peak blood pressure and peak subjective perception of effort. In addition, we will evaluate the 6 min walking distance, health-related quality of life, endothelial function, muscle strength, body fat percentage and lean mass. Risk of bias will be assessed using the Cochrane RoB V.2.0 tool, and we plan to use the Confidence in Network Meta-Analysis tool to assess confidence in the results. All materials (raw data, processed data, statistical code and outputs) will be shared in a public repository. ETHICS AND DISSEMINATION Given the nature of this study, no ethical approval will be required. We believe that the findings of this study may show which is the most efficacious and safe physical training modality for HTx recipients. The completed systematic review and network meta-analysis will be submitted to a peer-reviewed journal. PROSPERO REGISTRATION NUMBER CRD42020191192.
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Affiliation(s)
- Juliana Beust de Lima
- Graduate Program in Cardiology and Cardiovascular Sciences, Universidade Federal do Rio Grande do Sul, Hospital das Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
- Exercise Cardiology Research Group, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
- Interdisciplinary Research Group in Translational Cardiology, Clinical Research Center, Hospital das Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Douglas Dos Santos Soares
- Graduate Program in Cardiology and Cardiovascular Sciences, Universidade Federal do Rio Grande do Sul, Hospital das Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
- Interdisciplinary Research Group in Translational Cardiology, Clinical Research Center, Hospital das Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Filipe Ferrari
- Graduate Program in Cardiology and Cardiovascular Sciences, Universidade Federal do Rio Grande do Sul, Hospital das Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
- Exercise Cardiology Research Group, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
- Interdisciplinary Research Group in Translational Cardiology, Clinical Research Center, Hospital das Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Nelson Carvas Junior
- Department of Evidence-Based Health, Brazilian Cochrane Center, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Gabriel Carvalho
- Exercise Cardiology Research Group, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Santiago Alonso Tobar Leitão
- Graduate Program in Cardiology and Cardiovascular Sciences, Universidade Federal do Rio Grande do Sul, Hospital das Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
- Interdisciplinary Research Group in Translational Cardiology, Clinical Research Center, Hospital das Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Lívia Adams Goldraich
- Interdisciplinary Research Group in Translational Cardiology, Clinical Research Center, Hospital das Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
- Heart Failure and Cardiac Transplant Unit, Cardiology Division, Hospital das Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Nadine Clausell
- Graduate Program in Cardiology and Cardiovascular Sciences, Universidade Federal do Rio Grande do Sul, Hospital das Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
- Interdisciplinary Research Group in Translational Cardiology, Clinical Research Center, Hospital das Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
- Heart Failure and Cardiac Transplant Unit, Cardiology Division, Hospital das Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Associate Professor, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Ricardo Stein
- Graduate Program in Cardiology and Cardiovascular Sciences, Universidade Federal do Rio Grande do Sul, Hospital das Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
- Exercise Cardiology Research Group, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
- Interdisciplinary Research Group in Translational Cardiology, Clinical Research Center, Hospital das Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
- Associate Professor, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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16
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Rolid K, Andreassen AK, Yardley M, Gude E, Bjørkelund E, Authen AR, Grov I, Broch K, Gullestad L, Nytrøen K. Long-term effects of high-intensity training vs moderate intensity training in heart transplant recipients: A 3-year follow-up study of the randomized-controlled HITTS study. Am J Transplant 2020; 20:3538-3549. [PMID: 32484261 DOI: 10.1111/ajt.16087] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/01/2020] [Accepted: 05/19/2020] [Indexed: 01/25/2023]
Abstract
The randomized controlled High-Intensity Interval Training in De Novo Heart Transplant Recipients in Scandinavia (HITTS) study compared 9 months of high-intensity interval training (HIT) with moderate intensity continuous training in de novo heart transplant recipients. In our 3-year follow-up study, we aimed to determine whether the effect of early initiation of HIT on peak oxygen consumption (VO2peak ) persisted for 2 years postintervention. The study's primary end point was the change in VO2peak (mL/kg/min). The secondary end points were muscle strength, body composition, heart rate response, health-related quality of life, daily physical activity, biomarkers, and heart function. Of 78 patients who completed the 1-year HITTS trial, 65 entered our study and 62 completed the study tests. VO2peak increased from baseline to 1 year and leveled off thereafter. During the intervention period, the increase in VO2peak was larger in the HIT arm; however, 2 years later, there was no significant between-group difference in VO2peak . However, the mean change in the anaerobic threshold and extensor muscle endurance remained significantly higher in the HIT group. Early initiation of HIT after heart transplantation appears to have some sustainable long-term effects. Clinical trial registration number: NCT01796379.
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Affiliation(s)
- Katrine Rolid
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,The Norwegian Health Association, Oslo, Norway.,KG Jebsen Center for Cardiac Research, University of Oslo, Norway and the Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| | - Arne K Andreassen
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Marianne Yardley
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,The Norwegian Health Association, Oslo, Norway
| | - Einar Gude
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | | | - Anne R Authen
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Ingelin Grov
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Kaspar Broch
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway.,KG Jebsen Center for Cardiac Research, University of Oslo, Norway and the Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| | - Lars Gullestad
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,KG Jebsen Center for Cardiac Research, University of Oslo, Norway and the Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| | - Kari Nytrøen
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,KG Jebsen Center for Cardiac Research, University of Oslo, Norway and the Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
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17
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Masarone D, Melillo E, Petraio A, Valente F, Gravino R, Verrengia M, Pacileo G. Exercise-based rehabilitation strategies in heart transplant recipients: Focus on high-intensity interval training. Clin Transplant 2020; 35:e14143. [PMID: 33150597 DOI: 10.1111/ctr.14143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 10/26/2020] [Accepted: 10/30/2020] [Indexed: 11/29/2022]
Abstract
Despite progressive improvement in medical therapy and standard care, the exercise capacity of heart transplant recipients is reduced compared with age-matched healthy individuals. Exercise-based rehabilitation programs have been shown to improve the exercise capacity of transplant patients through a multifactorial effect. In this context, high-intensity interval exercise is a growing field of research, with current evidence suggesting a major benefit in heart transplant recipients compared with a conventional training protocol. Therefore, this study aimed to provide an overview of the mechanisms involved in the reduced exercise capacity of heart transplant patients and a review of current rehabilitation strategies with a special focus on the mechanisms and clinical effects of high-intensity interval training exercise.
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Affiliation(s)
- Daniele Masarone
- Heart Failure and Rehabilitative Cardiology Unit, AO dei Colli, Monaldi Hospital, Naples, Italy
| | - Enrico Melillo
- Heart Failure and Rehabilitative Cardiology Unit, AO dei Colli, Monaldi Hospital, Naples, Italy
| | - Andrea Petraio
- Department of Cardiovascular Surgery and Transplants, AO dei Colli, Monaldi Hospital, Naples, Italy
| | - Fabio Valente
- Heart Failure and Rehabilitative Cardiology Unit, AO dei Colli, Monaldi Hospital, Naples, Italy
| | - Rita Gravino
- Heart Failure and Rehabilitative Cardiology Unit, AO dei Colli, Monaldi Hospital, Naples, Italy
| | - Marina Verrengia
- Heart Failure and Rehabilitative Cardiology Unit, AO dei Colli, Monaldi Hospital, Naples, Italy
| | - Giuseppe Pacileo
- Heart Failure and Rehabilitative Cardiology Unit, AO dei Colli, Monaldi Hospital, Naples, Italy
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Cardiorespiratory Fitness Mediates Cognitive Performance in Chronic Heart Failure Patients and Heart Transplant Recipients. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17228591. [PMID: 33228046 PMCID: PMC7699401 DOI: 10.3390/ijerph17228591] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/11/2020] [Accepted: 11/13/2020] [Indexed: 12/19/2022]
Abstract
We compared cognitive profiles in chronic heart failure patients (HF), heart transplant recipients (HT) and healthy controls (HC) and examined the relationship between cardiorespiratory fitness (V˙O2peak), peak cardiac output (COpeak) and cognitive performance. Stable HT patients (n = 11), HF patients (n = 11) and HC (n = 13) (61.5 ± 8.5 years) were recruited. Four cognitive composite scores targeting different cognitive functions were computed from neuropsychological tests: working memory, processing speed, executive functions and verbal memory. Processing speed and executive function scores were higher, which indicates lower performances in HF and HT compared to HC (p < 0.05). V˙O2peak and first ventilatory threshold (VT1) were lower in HF and HT vs. HC (p < 0.01). COpeak was lower in HF vs. HT and HC (p < 0.01). Processing speed, executive function and verbal memory performances were correlated with V˙O2peak, VT1 and peak cardiac hemodynamics (p < 0.05). Mediation analyses showed that V˙O2peak and VT1 mediated the relationship between group and processing speed and executive function performances in HF and HT. COpeak fully mediated executive function and processing speed performances in HF only. V˙O2peak and COpeak were related to cognitive performance in the entire sample. In addition, V˙O2peak and VT1 fully mediated the relationship between group and executive function and processing speed performances.
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Rolid K, Andreassen AK, Yardley M, Gude E, Bjørkelund E, Authen AR, Grov I, Pettersen KI, Dall CH, Karason K, Broch K, Gullestad L, Nytrøen K. High-intensity interval training and health-related quality of life in de novo heart transplant recipients - results from a randomized controlled trial. Health Qual Life Outcomes 2020; 18:283. [PMID: 32807179 PMCID: PMC7433122 DOI: 10.1186/s12955-020-01536-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 08/11/2020] [Indexed: 02/07/2023] Open
Abstract
Background Studies on the effect of high-intensity interval training (HIT) compared with moderate intensity continuous training (MICT) on health-related quality of life (HRQoL) after heart transplantation (HTx) is scarce. No available studies among de novo HTx recipients exists. This study aimed to investigate the effect of HIT vs. MICT on HRQoL in de novo recipients. Methods The HITTS study randomized eighty-one de novo HTx recipients to receive either HIT or MICT (1:1). The HIT intervention were performed with 2–4 interval bouts with an intensity of 85–95% of maximal effort. The MICT group exercised at an intensity of 60–80% of their maximal effort with a duration of 25 min. HRQoL was assessed by the Short Form-36 version 2 (SF-36v2) and the Hospital Anxiety and Depression Scale, mean 11 weeks after surgery and after a nine months’ intervention. The participants recorded their subjective effect of the interventions on their general health and well-being on a numeric visual analogue scale. Clinical examinations and physical tests were performed. Differences between groups were investigated with independent Student t-tests and with Mann-Whitney U tests where appropriate. Within-group differences were analyzed with Paired-Sample t-tests and Wilcoxon Signed Rank tests. Correlations between SF-36 scores and VO2peak were examined with Pearson’s correlations. Results Seventy-eight participants completed the intervention. Both exercise modes were associated with improved exercise capacity on the physical function scores of HRQoL. Mental health scores remained unchanged. No differences in the change in HRQoL between the groups occurred except for Role Emotional subscale with a larger increase in the HIT arm. Better self-reported physical function was associated with higher VO2peak and muscle strength. Conclusion HIT and MICT resulted in similar mean changes in HRQoL the first year after HTx. Both groups experienced significant improvements in the physical SF-36v2. Trial registration ClinicalTrials.gov number: NCT01796379 Registered 18 February 2013.
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Affiliation(s)
- Katrine Rolid
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Rikshospitalet, , PO Box 4950 Nydalen, N-0424, Oslo, Norway. .,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway. .,The Norwegian Health Association, Oslo, Norway. .,KG Jebsen Center for Cardiac Research, University of Oslo, Norway and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway.
| | - Arne K Andreassen
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Rikshospitalet, , PO Box 4950 Nydalen, N-0424, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Marianne Yardley
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Rikshospitalet, , PO Box 4950 Nydalen, N-0424, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,The Norwegian Health Association, Oslo, Norway
| | - Einar Gude
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Rikshospitalet, , PO Box 4950 Nydalen, N-0424, Oslo, Norway
| | - Elisabeth Bjørkelund
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Rikshospitalet, , PO Box 4950 Nydalen, N-0424, Oslo, Norway
| | - Anne R Authen
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Rikshospitalet, , PO Box 4950 Nydalen, N-0424, Oslo, Norway
| | - Ingelin Grov
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Rikshospitalet, , PO Box 4950 Nydalen, N-0424, Oslo, Norway
| | - Kjell I Pettersen
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Rikshospitalet, , PO Box 4950 Nydalen, N-0424, Oslo, Norway
| | - Christian H Dall
- Department of Cardiology, Bispebjerg University Hospital, Copenhagen, Denmark
| | - Kristjan Karason
- Transplant Institute, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Kaspar Broch
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Rikshospitalet, , PO Box 4950 Nydalen, N-0424, Oslo, Norway.,KG Jebsen Center for Cardiac Research, University of Oslo, Norway and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| | - Lars Gullestad
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Rikshospitalet, , PO Box 4950 Nydalen, N-0424, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,KG Jebsen Center for Cardiac Research, University of Oslo, Norway and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| | - Kari Nytrøen
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Rikshospitalet, , PO Box 4950 Nydalen, N-0424, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,KG Jebsen Center for Cardiac Research, University of Oslo, Norway and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
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Schmidt T, Bjarnason-Wehrens B, Predel HG, Reiss N. Exercise after Heart Transplantation: Typical Alterations,
Diagnostics and Interventions. Int J Sports Med 2020; 42:103-111. [DOI: 10.1055/a-1194-4995] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
AbstractFor the treatment of terminal heart failure, heart transplantation is considered
to be the gold standard, leading to significantly improved quality of life and
long-time survival. For heart transplant recipients, the development and
maintenance of good functional performance and adequate exercise capacity is
crucial for renewed participation and integration in self-determined live. In
this respect, typical transplant-related alterations must be noted that play a
significant role, leading to restrictions both centrally and peripherally.
Before patients begin intensive and structured exercise training, a
comprehensive diagnosis of their exercise capacity should take place in order to
stratify the risks involved and to plan the training units accordingly.
Particularly endurance sports and resistance exercises are recommended to
counter the effects of the underlying disease and the immunosuppressive
medication. The performance level achieved can vary considerably depending on
their individual condition, from gentle activity through a non-competitive-level
to intensive competitive sports. This paper includes an overview of the current
literature on heart transplant recipients, their specific characteristics, as
well as typical cardiovascular and musculoskeletal alterations. It also
discusses suitable tools for measuring exercise capacity, recommendations for
exercise training, required precautions and the performance level usually
achieved.
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Affiliation(s)
- Thomas Schmidt
- Institute for Cardiovascular Research, Schüchtermann-Klinik Bad
Rothenfelde, Bad Rothenfelde, Germany
- Department of Preventive and Rehabilitative Sport and Exercise
Medicine, Institute for Cardiology and Sports Medicine, Cologne, German Sport
University Cologne, Germany
| | - Birna Bjarnason-Wehrens
- Department of Preventive and Rehabilitative Sport and Exercise
Medicine, Institute for Cardiology and Sports Medicine, Cologne, German Sport
University Cologne, Germany
| | - Hans-Georg Predel
- Department of Preventive and Rehabilitative Sport and Exercise
Medicine, Institute for Cardiology and Sports Medicine, Cologne, German Sport
University Cologne, Germany
| | - Nils Reiss
- Institute for Cardiovascular Research, Schüchtermann-Klinik Bad
Rothenfelde, Bad Rothenfelde, Germany
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21
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Increased aortic augmentation index is associated with reduced exercise capacity after heart transplantation. J Hypertens 2020; 38:1777-1785. [PMID: 32649621 DOI: 10.1097/hjh.0000000000002455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Exercise capacity is often reduced after heart transplantation. We aimed to investigate the association between aortic stiffness and exercise capacity after heart transplantation. METHODS We retrospectively analyzed the data of patients who underwent a cardiopulmonary exercise test and central hemodynamic measurements over 1 year following heart transplantation, from Janary 2011 to June 2018. RESULTS A total of 54 patients (mean age, 49 years; 72% men) were analyzed. The median peak oxygen uptake level was 21.1 ml/kg per min at a median time of 13 months after heart transplantation. In univariate linear regression, recipient age, pulmonary arterial pressure, pulmonary capillary wedge pressure, hemoglobin level, estimated glomerular filtration rate, aortic augmentation index, and pulse wave velocity were significant predictors for peak oxygen uptake level. After adjustment for other confounding variables, heart rate-corrected aortic augmentation index was a significant predictor for peak oxygen uptake (β = -0.141, 95% confidence interval, -0.263 to -0.058, P = 0.003). CONCLUSION In the present study, increased aortic augmentation index was associated with reduced exercise capacity after heart transplantation. Therefore, this simple measurement of aortic stiffness should be periodically used for the evaluation of exercise capacity after heart transplantation.
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Nytrøen K, Rolid K, Yardley M, Gullestad L. Effect of high-intensity interval training in young heart transplant recipients: results from two randomized controlled trials. BMC Sports Sci Med Rehabil 2020; 12:35. [PMID: 32518655 PMCID: PMC7271535 DOI: 10.1186/s13102-020-00180-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 05/01/2020] [Indexed: 12/13/2022]
Abstract
Background Little is known about the effect of exercise in young heart transplant recipients, and results on group level is lacking. This study summarizes the findings of the youngest participants in two previous randomized controlled trials. Method This is a hypothesis-generating study reporting the main results from the youngest participants in two larger randomized controlled trials investigating the effect of high-intensity interval training (HIT). The article summarizes the main results from 28 young participants (< 40 year of age) who have participated in two previous studies which evaluated the effect of HIT vs. controls in adult heart transplant recipients. One of the studies included de novo heart transplant recipients and the other included maintenance heart transplant recipients.All study tests were performed in-hospital, in the specialist health care setting, but the exercise intervention was carried out locally, in cooperation with the primary health care. In both studies the exercise intervention lasted for 9-12 months. In one study, HIT (85-95% of peak effort) was compared to controls (no specific intervention), and in the other study HIT was compared to moderate, continuous exercise (MICT, 60-80% of peak effort). The main outcome measure was peak oxygen uptake (VO2peak) and a secondary endpoint was muscle strength. Results The summarized findings from the youngest heart transplant recipients in these two studies demonstrated mainly that the improvement in peak oxygen uptake among the younger recipients (< 40 years) was much larger (4.7 vs. 1.2 ml/kg/min and 7.0 vs. 2.2 ml/kg/min) compared to the improvement among the older recipients (≥ 40 years), and in accordance with results from adult heart transplant populations: HIT, compared to MICT, induced the largest improvement in peak oxygen consumption, also in the younger heart transplant recipients. Conclusions These results suggest that young heart transplant recipients have a greater effect of HIT than of MICT and may also suggest that younger recipients benefit more from high-intensity interval training than their older co-patients. However, larger randomized studies focusing on the young heart transplant population is strongly needed to confirm this hypothesis. Trial registration Clinical trial registrations: NCT01796379 and NCT01091194.
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Affiliation(s)
- Kari Nytrøen
- Department of Cardiology, Oslo University Hospital Rikshospitalet, postbox 4950, Nydalen, 0424 Oslo, Norway.,Faculty of Medicine, University of Oslo, Postbox 1072 Blindern, 0316 Oslo, Norway.,KG Jebsen Center for Cardiac Research, University of Oslo, Norway and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| | - Katrine Rolid
- Department of Cardiology, Oslo University Hospital Rikshospitalet, postbox 4950, Nydalen, 0424 Oslo, Norway.,Faculty of Medicine, University of Oslo, Postbox 1072 Blindern, 0316 Oslo, Norway.,KG Jebsen Center for Cardiac Research, University of Oslo, Norway and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| | - Marianne Yardley
- Department of Cardiology, Oslo University Hospital Rikshospitalet, postbox 4950, Nydalen, 0424 Oslo, Norway
| | - Lars Gullestad
- Department of Cardiology, Oslo University Hospital Rikshospitalet, postbox 4950, Nydalen, 0424 Oslo, Norway.,Faculty of Medicine, University of Oslo, Postbox 1072 Blindern, 0316 Oslo, Norway.,KG Jebsen Center for Cardiac Research, University of Oslo, Norway and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
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23
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The Predictive Value of Depression in the Years After Heart Transplantation for Mortality During Long-Term Follow-Up. Psychosom Med 2020; 81:513-520. [PMID: 31033937 DOI: 10.1097/psy.0000000000000702] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Current understanding of the prognostic impact of depression on mortality after heart transplantation (HTx) is limited. We examined whether depression after HTx is a predictor of mortality during extended follow-up. Subsequently, we explored whether different symptom dimensions of depression could be identified and whether they were differentially associated with mortality. METHODS Survival analyses were performed in a sample of 141 HTx recipients assessed for depression, measured by self-report of depressive symptoms (Beck Depression Inventory - version 1A [BDI-1A]), at median 5.0 years after HTx, and followed thereafter for survival status for up to 18.6 years. We used uni- and multivariate Cox proportional hazard models to examine the association of clinically significant depression (BDI-1A total score ≥10), as well as the cognitive-affective and the somatic subscales of the BDI-1A (resulting from principal component analysis) with mortality. In the multivariate analyses, we adjusted for relevant sociodemographic and clinical variables. RESULTS Clinically significant depression was a significant predictor of mortality (hazard ratio = 2.088; 95% confidence interval = 1.366-3.192; p = .001). Clinically significant depression also was an independent predictor of mortality in the multivariate analysis (hazard ratio = 1.982; 95% confidence interval = 1.220-3.217; p = .006). The somatic subscale, but not the cognitive-affective subscale, was significantly associated with increased mortality in univariate analyses, whereas neither of the two subscales was an independent predictor of mortality in the multivariate analysis. CONCLUSIONS Depression measured by self-report after HTx is associated with increased mortality during extended follow-up. Clinical utility and predictive validity of specific depression components require further study.
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24
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Nytrøen K, Rolid K, Andreassen AK, Yardley M, Gude E, Dahle DO, Bjørkelund E, Relbo Authen A, Grov I, Philip Wigh J, Have Dall C, Gustafsson F, Karason K, Gullestad L. Effect of High-Intensity Interval Training in De Novo Heart Transplant Recipients in Scandinavia. Circulation 2020; 139:2198-2211. [PMID: 30773030 DOI: 10.1161/circulationaha.118.036747] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND There is no consensus on how, when, or at what intensity exercise should be performed after heart transplantation (HTx). We have recently shown that high-intensity interval training (HIT) is safe, well tolerated, and efficacious in the maintenance state after HTx, but studies have not investigated HIT effects in the de novo HTx state. We hypothesized that HIT could be introduced early after HTx and that it could lead to clinically meaningful increases in exercise capacity and health-related quality of life. METHODS This multicenter, prospective, randomized, controlled trial included 81 patients a mean of 11 weeks (range, 7-16 weeks) after an HTx. Patients were randomized 1:1 to 9 months of either HIT (4×4-minute intervals at 85%-95% of peak effort) or moderate-intensity continuous training (60%-80% of peak effort). The primary outcome was the effect of HIT versus moderate-intensity continuous training on the change in aerobic exercise capacity, assessed as the peak oxygen consumption (Vo2peak). Secondary outcomes included tolerability, safety, adverse events, isokinetic muscular strength, body composition, health-related quality of life, left ventricular function, hemodynamics, endothelial function, and biomarkers. RESULTS From baseline to follow-up, 96% of patients completed the study. There were no serious exercise-related adverse events. The population comprised 73% men, and the mean±SD age was 49±13 years. At the 1-year follow-up, the HIT group demonstrated greater improvements than the moderate-intensity continuous training group; the groups showed significantly different changes in the Vo2peak (mean difference between groups, 1.8 mL·kg-1·min-1), the anaerobic threshold (0.28 L/min), the peak expiratory flow (11%), and the extensor muscle exercise capacity (464 J). The 1.8-mL·kg-1·min-1 difference was equal to ≈0.5 metabolic equivalents, which is regarded as clinically meaningful and relevant. Health-related quality of life was similar between the groups, as indicated by results from the Short Form-36 (version 2), Hospital Anxiety and Depression Scale, and a visual analog scale. CONCLUSIONS We demonstrated that HIT was a safe, efficient exercise method in de novo HTx recipients. HIT, compared with moderate-intensity continuous training, resulted in a clinically significantly greater change in exercise capacity based on the Vo2peak values (25% versus 15%), anaerobic threshold, peak expiratory flow, and muscular exercise capacity. CLINICAL TRIAL REGISTRATION URL: https://www.clinicaltrials.gov . Unique identifier NCT01796379.
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Affiliation(s)
- Kari Nytrøen
- Departments of Cardiology (K.N., K.R., A.K.A., M.Y., E.G., E.B., A.R.A., I.G., L.G.), Oslo University Hospital Rikshospitalet, Norway.,Institute of Clinical Medicine, Faculty of Medicine (K.N., K.R., A.K.A., M.Y., L.G.), University of Oslo, Norway.,KG Jebsen Center for Cardiac Research (K.N., K.R., E.G., L.G.), University of Oslo, Norway.,Center for Heart Failure Research, Oslo University Hospital, Norway (K.N., K.R., E.G., L.G.)
| | - Katrine Rolid
- Departments of Cardiology (K.N., K.R., A.K.A., M.Y., E.G., E.B., A.R.A., I.G., L.G.), Oslo University Hospital Rikshospitalet, Norway.,Institute of Clinical Medicine, Faculty of Medicine (K.N., K.R., A.K.A., M.Y., L.G.), University of Oslo, Norway.,KG Jebsen Center for Cardiac Research (K.N., K.R., E.G., L.G.), University of Oslo, Norway.,Norwegian Health Association, Oslo, Norway (K.R., M.Y.).,Center for Heart Failure Research, Oslo University Hospital, Norway (K.N., K.R., E.G., L.G.)
| | - Arne Kristian Andreassen
- Departments of Cardiology (K.N., K.R., A.K.A., M.Y., E.G., E.B., A.R.A., I.G., L.G.), Oslo University Hospital Rikshospitalet, Norway.,Institute of Clinical Medicine, Faculty of Medicine (K.N., K.R., A.K.A., M.Y., L.G.), University of Oslo, Norway
| | - Marianne Yardley
- Departments of Cardiology (K.N., K.R., A.K.A., M.Y., E.G., E.B., A.R.A., I.G., L.G.), Oslo University Hospital Rikshospitalet, Norway.,Institute of Clinical Medicine, Faculty of Medicine (K.N., K.R., A.K.A., M.Y., L.G.), University of Oslo, Norway.,Norwegian Health Association, Oslo, Norway (K.R., M.Y.)
| | - Einar Gude
- Departments of Cardiology (K.N., K.R., A.K.A., M.Y., E.G., E.B., A.R.A., I.G., L.G.), Oslo University Hospital Rikshospitalet, Norway.,KG Jebsen Center for Cardiac Research (K.N., K.R., E.G., L.G.), University of Oslo, Norway.,Center for Heart Failure Research, Oslo University Hospital, Norway (K.N., K.R., E.G., L.G.)
| | - Dag Olav Dahle
- Transplantation Medicine (D.O.D.), Oslo University Hospital Rikshospitalet, Norway
| | - Elisabeth Bjørkelund
- Departments of Cardiology (K.N., K.R., A.K.A., M.Y., E.G., E.B., A.R.A., I.G., L.G.), Oslo University Hospital Rikshospitalet, Norway
| | - Anne Relbo Authen
- Departments of Cardiology (K.N., K.R., A.K.A., M.Y., E.G., E.B., A.R.A., I.G., L.G.), Oslo University Hospital Rikshospitalet, Norway
| | - Ingelin Grov
- Departments of Cardiology (K.N., K.R., A.K.A., M.Y., E.G., E.B., A.R.A., I.G., L.G.), Oslo University Hospital Rikshospitalet, Norway
| | - Julia Philip Wigh
- Transplant Institute, Sahlgrenska University Hospital, Gothenburg, Sweden (J.P.W., K.K.)
| | - Christian Have Dall
- Department of Cardiology, Bispebjerg University Hospital, Copenhagen, Denmark (C.H.D.).,University of Copenhagen, Denmark (C.H.D., F.G.)
| | - Finn Gustafsson
- University of Copenhagen, Denmark (C.H.D., F.G.).,Rigshospitalet, Copenhagen, Denmark (F.G.)
| | - Kristjan Karason
- Transplant Institute, Sahlgrenska University Hospital, Gothenburg, Sweden (J.P.W., K.K.)
| | - Lars Gullestad
- Departments of Cardiology (K.N., K.R., A.K.A., M.Y., E.G., E.B., A.R.A., I.G., L.G.), Oslo University Hospital Rikshospitalet, Norway.,Institute of Clinical Medicine, Faculty of Medicine (K.N., K.R., A.K.A., M.Y., L.G.), University of Oslo, Norway.,KG Jebsen Center for Cardiac Research (K.N., K.R., E.G., L.G.), University of Oslo, Norway.,Center for Heart Failure Research, Oslo University Hospital, Norway (K.N., K.R., E.G., L.G.)
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25
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Exercise for Solid Organ Transplant Candidates and Recipients: A Joint Position Statement of the Canadian Society of Transplantation and CAN-RESTORE. Transplantation 2019; 103:e220-e238. [DOI: 10.1097/tp.0000000000002806] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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26
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Severin R, Sabbahi A, Ozemek C, Phillips S, Arena R. Approaches to improving exercise capacity in patients with left ventricular assist devices: an area requiring further investigation. Expert Rev Med Devices 2019; 16:787-798. [PMID: 31453716 DOI: 10.1080/17434440.2019.1660643] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Introduction: Left ventricular assist device (LVAD) implantation has become a well-established treatment option for patients with end stage heart failure (HF) who are refractory to medical therapy. While LVADs implantation does effectively improve hemodynamic performance many patients still possess peripheral pathological adaptations often present in end-stage HF. Therefore, increased attention has been placed on investigating the effects of exercise training for patients with LVADs to improve clinical outcomes. However, the available evidence on exercise training for patients with LVADs is limited. Areas covered: The purpose of this narrative review is to summarize: 1) The evolution of LVAD technology and usage; 2) The physiological responses to exercise in patients with LVADs; 3) The available evidence regarding exercise training; 4) Potential strategies to implement exercise training programs for this patient population. Expert opinion: The available evidence for exercise training to improve physical function and clinical outcomes for patients with LVADs is promising but limited. Future research is needed to further elucidate the ideal exercise training parameters, method of delivery for exercise training, and unique barriers and facilitators to exercise training for patients receiving LVAD implantation.
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Affiliation(s)
- Richard Severin
- Department of Physical Therapy, University of Illinois , Chicago , IL , USA
| | - Ahmad Sabbahi
- Department of Physical Therapy, University of Illinois , Chicago , IL , USA
| | - Cemal Ozemek
- Department of Physical Therapy, University of Illinois , Chicago , IL , USA
| | - Shane Phillips
- Department of Physical Therapy, University of Illinois , Chicago , IL , USA
| | - Ross Arena
- Department of Physical Therapy, University of Illinois , Chicago , IL , USA
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27
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Tucker WJ, Brubaker PH, Haykowsky MJ. Improving Exercise Capacity in Recent Heart Transplant Recipients. Circulation 2019; 139:2212-2214. [PMID: 31059321 DOI: 10.1161/circulationaha.119.039845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Wesley J Tucker
- College of Nursing and Health Innovation (W.J.T., M.J.H.), University of Texas at Arlington.,Department of Kinesiology (W.J.T.), University of Texas at Arlington
| | - Peter H Brubaker
- Department of Health and Exercise Science, Wake Forest University, Winston-Salem, NC (P.H.B.)
| | - Mark J Haykowsky
- College of Nursing and Health Innovation (W.J.T., M.J.H.), University of Texas at Arlington
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Abstract
BACKGROUND Cardiopulmonary exercise testing has been used to measure functional capacity in children who have undergone a heart transplant. Cardiopulmonary exercise testing results have not been compared between children transplanted for a primary diagnosis of CHD and those with a primary diagnosis of cardiomyopathy despite differences in outcomes. This study is aimed to compare cardiopulmonary exercise testing performance between these two groups. METHODS Patients who underwent heart transplant with subsequent cardiopulmonary exercise testing at least 6 months after transplant at our institution were identified. They were then divided into two groups based on primary cardiac diagnosis: CHD or cardiomyopathy. Patient characteristics, echocardiograms, cardiac catheterisations, outcomes, and cardiopulmonary exercise test results were compared between the two groups. RESULTS From the total of 35 patients, 15 (43%) had CHD and 20 (57%) had cardiomyopathy. Age at transplant, kidney disease, lung disease, previous rejection, coronary vasculopathy, catheterisation, and echocardiographic data were similar between the groups. Mean time from transplant to cardiopulmonary exercise testing, exercise duration, and maximum oxygen consumption were similar in both groups. There was a difference in heart rate response with CHD heart rate response of 63 beats per minute compared to cardiomyopathy group of 78 (p = 0.028). Patients with CHD had more chronotropic incompetence than those with cardiomyopathy (p = 0.036). CONCLUSION Primary diagnosis of CHD is associated with abnormal heart rate response and more chronotropic incompetence compared to those transplanted for cardiomyopathy.
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29
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Predicting oxygen uptake responses during cycling at varied intensities using an artificial neural network. BIOMEDICAL HUMAN KINETICS 2019. [DOI: 10.2478/bhk-2019-0008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Summary
Study aim: Oxygen Uptake (VO2) is avaluable metric for the prescription of exercise intensity and the monitoring of training progress. However, VO2 is difficult to assess in anon-laboratory setting. Recently, an artificial neural network (ANN) was used to predict VO2 responses during aset walking protocol on the treadmill [9]. The purpose of the present study was to test the ability of an ANN to predict VO2 responses during cycling at self-selected intensities using Heart Rate (HR), time derivative of HR, power output, cadence, and body mass data.
Material and methods: 12 moderately-active adult males (age: 21.1 ± 2.5 years) performed a50-minute bout of cycling at a variety of exercise intensities. VO2, HR, power output, and cadence were recorded throughout the test. An ANN was trained, validated and tested using the following inputs: HR, time derivative of HR, power output, cadence, and body mass. A twelve-fold hold-out cross validation was conducted to determine the accuracy of the model.
Results: The ANN accurately predicted the experimental VO2 values throughout the test (R2 = 0.91 ± 0.04, SEE = 3.34 ± 1.07 mL/kg/min).
Discussion: This preliminary study demonstrates the potential for using an ANN to predict VO2 responses during cycling at varied intensities using easily accessible inputs. The predictive accuracy is promising, especially considering the large range of intensities and long duration of exercise. Expansion of these methods could allow ageneral algorithm to be developed for a more diverse population, improving the feasibility of oxygen uptake assessment.
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30
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Uithoven KE, Smith JR, Medina-Inojosa JR, Squires RW, Van Iterson EH, Olson TP. Clinical and Rehabilitative Predictors of Peak Oxygen Uptake Following Cardiac Transplantation. J Clin Med 2019; 8:jcm8010119. [PMID: 30669449 PMCID: PMC6352218 DOI: 10.3390/jcm8010119] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 01/14/2019] [Accepted: 01/16/2019] [Indexed: 12/28/2022] Open
Abstract
The measurement of peak oxygen uptake (VO2peak) is an important metric for evaluating cardiac transplantation (HTx) eligibility. However, it is unclear which factors (e.g., recipient demographics, clinical parameters, cardiac rehabilitation (CR) participation) influence VO2peak following HTx. Consecutive HTx patients with cardiopulmonary exercise testing (CPET) between 2007–2016 were included. VO2peak was measured from CPET standard protocol. Regression analyses determined predictors of the highest post-HTx VO2peak (i.e., quartile 4: VO2peak > 20.1 mL/kg/min). One hundred-forty HTx patients (women: n = 41 (29%), age: 52 ± 12 years, body mass index (BMI): 27 ± 5 kg/m2) were included. History of diabetes (Odds Ratio (OR): 0.17, 95% Confidence Interval (CI): 0.04–0.77, p = 0.021), history of dyslipidemia (OR: 0.42, 95% CI: 0.19–0.93, p = 0.032), BMI (OR: 0.90, 95% CI: 0.82–0.99, p = 0.022), hemoglobin (OR: 1.29, 95% CI: 1.04–1.61, p = 0.020), white blood cell count (OR: 0.81, 95% CI: 0.66–0.98, p = 0.033), CR exercise sessions (OR: 1.10, 95% CI: 1.04–1.15, p < 0.001), and pre-HTx VO2peak (OR: 1.17, 95% CI: 1.07–1.29, p = 0.001) were significant predictors. Multivariate analysis showed CR exercise sessions (OR: 1.10, 95% CI: 1.03–1.16, p = 0.002), and pre-HTx VO2peak (OR: 1.16, 95% CI: 1.04–1.30, p = 0.007) were independently predictive of higher post-HTx VO2peak. Pre-HTx VO2peak and CR exercise sessions are predictive of a greater VO2peak following HTx. These data highlight the importance of CR exercise session attendance and pre-HTx fitness in predicting VO2peak post-HTx.
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Affiliation(s)
- Katelyn E Uithoven
- School of Kinesiology, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Joshua R Smith
- Division of Preventive Cardiology, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA.
| | - Jose R Medina-Inojosa
- Division of Preventive Cardiology, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA.
| | - Ray W Squires
- Division of Preventive Cardiology, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA.
| | - Erik H Van Iterson
- Section of Preventive Cardiology and Rehabilitation, Cleveland Clinic, Cleveland, OH 44195, USA.
| | - Thomas P Olson
- Division of Preventive Cardiology, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, USA.
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Ozemek C, Laddu DR, Lavie CJ, Claeys H, Kaminsky LA, Ross R, Wisloff U, Arena R, Blair SN. An Update on the Role of Cardiorespiratory Fitness, Structured Exercise and Lifestyle Physical Activity in Preventing Cardiovascular Disease and Health Risk. Prog Cardiovasc Dis 2018; 61:484-490. [PMID: 30445160 DOI: 10.1016/j.pcad.2018.11.005] [Citation(s) in RCA: 125] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 11/12/2018] [Indexed: 12/19/2022]
Abstract
The cardiovascular disease (CVD) pandemic has placed considerable strain on healthcare systems, quality of life, and physical function, while remaining the leading cause of death globally. Decades of scientific investigations have fortified the protective effects of cardiorespiratory fitness (CRF), exercise training, and physical activity (PA) against the development of CVD. This review will summarize recent efforts that have made significant strides in; 1) the application of novel analytic techniques to increase the predictive utility of CRF; 2) understanding the protective effects of long-term compliance to PA recommendations through large cohort studies with multiple points of assessment; 3) and understanding the potential harms associated with extreme volumes of PA.
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Affiliation(s)
- Cemal Ozemek
- Department of Physical Therapy and the Integrative Physiology Laboratory, College of Applied Health Sciences, University of Illinois at Chicago, Chicago, IL, USA.
| | - Deepika R Laddu
- Department of Physical Therapy and the Integrative Physiology Laboratory, College of Applied Health Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Carl J Lavie
- Department of Cardiovascular Diseases, John Ochsner Heart and Vascular Institute, Ochsner Clinical School-University of Queensland School of Medicine, New Orleans, LA, USA
| | - Hannah Claeys
- Department of Physical Therapy and the Integrative Physiology Laboratory, College of Applied Health Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Leonard A Kaminsky
- Fisher Institute of Health and Well-Being, Ball State University, Muncie, IN, USA
| | - Robert Ross
- Schoold of Kinesiology and Health Studies, Queen's University, Kingston, Ontario, Canada; School of Medicine, Department of Endocrinology and Metabolism, Queen's University, Kingston, Ontario, Canada
| | - Ulrik Wisloff
- K. G. Jebsen Center of Exercise in Medicine at the Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway; School of Human Movement & Nutrition Sciences, University of Queensland, St. Lucia, QLD, Australia
| | - Ross Arena
- Department of Physical Therapy and the Integrative Physiology Laboratory, College of Applied Health Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Steven N Blair
- Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
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Rolid K, Andreassen AK, Yardley M, Bjørkelund E, Karason K, Wigh JP, Dall CH, Gustafsson F, Gullestad L, Nytrøen K. Clinical features and determinants of VO 2peak in de novo heart transplant recipients. World J Transplant 2018; 8:188-197. [PMID: 30211027 PMCID: PMC6134270 DOI: 10.5500/wjt.v8.i5.188] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 07/29/2018] [Accepted: 08/06/2018] [Indexed: 02/05/2023] Open
Abstract
AIM To study exercise capacity and determinants of early peak oxygen consumption (VO2peak) in a cohort of de novo heart transplant (HTx) recipients.
METHODS To determine possible central (chronotropic responses, cardiopulmonary and hemodynamic function) and peripheral factors (muscular exercise capacity and body composition) predictive of VO2peak, a number of different measurements and tests were performed, as follows: Cardiopulmonary exercise testing (CPET) was performed mean 11 wk after surgery in 81 HTx recipients > 18 years and was measured with breath by breath gas exchange on a treadmill or bicycle ergometer. Metabolic/respiratory measures include VO2peak and VE/VCO2 slope. Additional measures included muscle strength testing, bioelectrical impedance analysis, echocardiography, blood sampling and health-related quality of life. Based on the VO2peak (mL/kg per minute) median value, the study population was divided into two groups defined as a low-capacity group and a high-capacity group. Potential predictors were analyzed using multiple regression analysis with VO2peak (L/min) as the dependent variable.
RESULTS The mean ± standard deviation (SD) age of the total study population was 49 ± 13 years, and 73% were men. This de novo HTx cohort demonstrated a median VO2peak level of 19.4 mL/kg per min at 11 ± 1.8 wk post-HTx. As compared with the high-capacity group, the low-capacity group exercised for a shorter time, had lower maximal ventilation, O2 pulse, peak heart rate and heart rate reserve, while the VE/VCO2 slope was higher. The low-capacity group had less muscle strength and muscular exercise capacity in comparison with the high-capacity group. In order of importance, O2 pulse, heart rate reserve, muscular exercise capacity, body mass index, gender and age accounted for 84% of the variance in VO2peak (L/min). There were no minor or major serious adverse events during the CPET.
CONCLUSION Although there is great individual variance among de novo HTx recipients, early VO2peak measures appear to be influenced by both central and peripheral factors.
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Affiliation(s)
- Katrine Rolid
- Department of Cardiology, Oslo University Hospital, Oslo 0424, Norway
- the Norwegian Health Association, Oslo 0307, Norway
- Faculty of Medicine, University of Oslo, Oslo 0316, Norway
- KG Jebsen Center for Cardiac Research, and Center for Heart Failure Research, University of Oslo, Oslo 0316, Norway
| | - Arne K Andreassen
- Department of Cardiology, Oslo University Hospital, Oslo 0424, Norway
| | - Marianne Yardley
- Department of Cardiology, Oslo University Hospital, Oslo 0424, Norway
- the Norwegian Health Association, Oslo 0307, Norway
- Faculty of Medicine, University of Oslo, Oslo 0316, Norway
| | | | - Kristjan Karason
- Department of Cardiology, Sahlgrenska University Hospital, Gothenburg 41345, Sweden
| | - Julia P Wigh
- Department of Physical Therapy, Sahlgrenska University Hospital, Gothenburg 41345, Sweden
| | - Christian H Dall
- Department of Cardiology, Bispebjerg University Hospital, Copenhagen 2400, Denmark
| | - Finn Gustafsson
- Department of Cardiology, Rigshospitalet University Hospital, Copenhagen 2100, Denmark
| | - Lars Gullestad
- Department of Cardiology, Oslo University Hospital, Oslo 0424, Norway
- Faculty of Medicine, University of Oslo, Oslo 0316, Norway
- KG Jebsen Center for Cardiac Research, and Center for Heart Failure Research, University of Oslo, Oslo 0316, Norway
| | - Kari Nytrøen
- Department of Cardiology, Oslo University Hospital, Oslo 0424, Norway
- Faculty of Medicine, University of Oslo, Oslo 0316, Norway
- KG Jebsen Center for Cardiac Research, and Center for Heart Failure Research, University of Oslo, Oslo 0316, Norway
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Tan C, Rossiter HB, Porszasz J, Bowen TS, Witte KK, Stringer WW, Casaburi R, Hansen JE. Reliability and Physiological Interpretation of Pulmonary Gas Exchange by "Circulatory Equivalents" in Chronic Heart Failure. J Am Heart Assoc 2018; 7:e008072. [PMID: 29588313 PMCID: PMC5907590 DOI: 10.1161/jaha.117.008072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 02/26/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND Peak ratios of pulmonary gas-exchange to ventilation during exercise (V˙O2/V˙E and V˙CO2/V˙E, termed "circulatory equivalents") are sensitive to heart failure (HF) severity, likely reflecting low and/or poorly distributed pulmonary perfusion. We tested whether peak V˙O2/V˙E and V˙CO2/V˙E would: (1) distinguish HF patients from controls; (2) be independent of incremental exercise protocol; and (3) correlate with lactate threshold (LT) and ventilatory compensation point (VCP), respectively. METHODS AND RESULTS Twenty-four HF patients (61±11 years) with reduced ejection fraction (31±8%) and 11 controls (63±7 years) performed ramp-incremental cycle ergometry. Eighteen HF patients also performed slow (5±1 W/min), medium (9±4 W/min), and fast (19±6 W/min) ramps. Peak V˙O2/V˙E and V˙CO2/V˙E from X-Y plot, and LT and VCP from 9-panel plot, were determined by 2 independent, blinded, assessors. Peak V˙O2/V˙E (31.2±4.4 versus 41.8±4.8 mL/L; P<0.0001) and V˙CO2/V˙E (29.3±3.0 versus 36.9±4.0 mL/L; P<0.0001) were lower in HF than controls. Within individuals, there was no difference across 3 ramp rates in peak V˙O2/V˙E (P=0.62) or V˙CO2/V˙E (P=0.97). Coefficient of variation (CV) in peak V˙O2/V˙E was lower than for LT (5.1±2.1% versus 8.2±3.7%; P=0.014), and coefficient of variation in peak V˙CO2/V˙E was lower than for VCP (3.3±1.8% versus 8.7±4.2%; P<0.001). In all participants, peak V˙O2/V˙E was correlated with, but occurred earlier than, LT (r2=0.94; mean bias, -0.11 L/min), and peak V˙CO2/V˙E was correlated with, but occurred earlier than, VCP (r2=0.98; mean bias -0.08 L/min). CONCLUSIONS Peak circulatory equivalents during exercise are strongly associated with (but not identical to) LT and VCP. Peak circulatory equivalents are reliable, objective, effort-independent indices of gas-exchange abnormality in HF.
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Affiliation(s)
- Chunting Tan
- Department of Respiratory Medicine, Beijing Friendship Hospital Capital Medical University, Beijing, China
- Division of Respiratory and Critical Care Physiology and Medicine, Rehabilitation Clinical Trials Center, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA
| | - Harry B Rossiter
- Division of Respiratory and Critical Care Physiology and Medicine, Rehabilitation Clinical Trials Center, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA
- Faculty of Biological Sciences, University of Leeds, United Kingdom
| | - Janos Porszasz
- Division of Respiratory and Critical Care Physiology and Medicine, Rehabilitation Clinical Trials Center, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA
| | - T Scott Bowen
- Faculty of Biological Sciences, University of Leeds, United Kingdom
| | - Klaus K Witte
- Faculty of Medicine, University of Leeds, United Kingdom
| | - William W Stringer
- Division of Respiratory and Critical Care Physiology and Medicine, Rehabilitation Clinical Trials Center, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA
| | - Richard Casaburi
- Division of Respiratory and Critical Care Physiology and Medicine, Rehabilitation Clinical Trials Center, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA
| | - James E Hansen
- Division of Respiratory and Critical Care Physiology and Medicine, Rehabilitation Clinical Trials Center, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA
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Yardley M, Gullestad L, Nytrøen K. Importance of physical capacity and the effects of exercise in heart transplant recipients. World J Transplant 2018; 8:1-12. [PMID: 29507857 PMCID: PMC5829450 DOI: 10.5500/wjt.v8.i1.1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 12/12/2017] [Accepted: 12/28/2017] [Indexed: 02/05/2023] Open
Abstract
One of the most important prognostic factors in heart failure patients is physical capacity. Patients with very poor physical performance and otherwise eligible, may be listed as candidates for heart transplantation (HTx). After such surgery, life-long immunosuppression therapy is needed to prevent rejection of the new heart. The dark side of immunosuppression is the increased risk of infections, kidney failure, cancer and advanced atherosclerosis (cardiac allograft vasculopathy), with the two latter conditions as the main causes of later mortality. In a worldwide perspective, 50% of the HTx patients survive past 10 years. Poor aerobic capacity prior to graft deterioration is not only limited to the failing heart, but also caused by peripheral factors, such as limited function in the skeletal muscles and in the blood vessels walls. Exercise rehabilitation after HTx is of major importance in order to improve physical capacity and prognosis. Effects of high-intensity interval training (HIT) in HTx recipients is a growing field of research attracting worldwide focus and interest. Accumulating evidence has shown that HIT is safe and efficient in maintenance HTx recipients; with superior effects on physical capacity compared to conventional moderate exercise. This article generates further evidence to the field by summarizing results from a decade of research performed at our center supported by a broad, but not strict formal, literature review. In short, this article demonstrates a strong association between physical capacity measured after HTx and long-term survival. It describes the possible “HIT-effect” with increased levels of inflammatory mediators of angiogenesis. It also describes long-term effects of HIT; showing a positive effect in development of anxiety symptoms despite that the improved physical capacity was not sustained, due to downregulation of exercise and intensity. Finally, our results are linked to the ongoing HITTS study, which investigates safety and efficiency of HIT in de novo HTx recipients. Together with previous results, this study may have the potential to change existing guidelines and contribute to a better prognosis for the HTx population as a whole.
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Affiliation(s)
- Marianne Yardley
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo 0424, Norway
- Faculty of Medicine, University of Oslo, Oslo 0316, Norway
| | - Lars Gullestad
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo 0424, Norway
- Faculty of Medicine, University of Oslo, Oslo 0316, Norway
| | - Kari Nytrøen
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo 0424, Norway
- Faculty of Medicine, University of Oslo, Oslo 0316, Norway
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Selig S, Foulkes S, Haykowsky M. Improvements in exercise capacity following cardiac transplantation in a patient born with double inlet left ventricle. BMJ Case Rep 2018; 2018:bcr-2017-223169. [PMID: 29437740 PMCID: PMC5836704 DOI: 10.1136/bcr-2017-223169] [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] [Indexed: 11/21/2022] Open
Abstract
A 32-year-old man born with double inlet left ventricle (DILV) and other significant cardiac abnormalities underwent surgical palliation at 1 day, 2 years and 20 years, before receiving a donor heart at 29 years. To our knowledge, there are no case reports or cohort studies of the effect of exercise training on exercise capacity and peak oxygen uptake (VO2peak) following heart transplantation (HTx) for individuals born with DILV. The patient accessed our clinical exercise physiology service for assessment, advice and support for exercise training over a 7-year period spanning pre-HTx and post-HTx. An individualised exercise plan, together with careful assessment and monitoring, and the patient’s own motivation have contributed to him achieving an outstanding post-HTx doubling of VO2peak and exercise capacity.
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Affiliation(s)
- Steve Selig
- School of Exercise & Nutrition Sciences, Deakin University Faculty of Health, Geelong, Victoria, Australia
| | - Steve Foulkes
- School of Exercise & Nutrition Sciences, Deakin University Faculty of Health, Geelong, Victoria, Australia
| | - Mark Haykowsky
- College of Nursing and Health Innovation, The University of Texas at Arlington, Arlington, Texas, USA
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36
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Yardley M, Ueland T, Aukrust P, Michelsen A, Bjørkelund E, Gullestad L, Nytrøen K. Immediate response in markers of inflammation and angiogenesis during exercise: a randomised cross-over study in heart transplant recipients. Open Heart 2017; 4:e000635. [PMID: 29225901 PMCID: PMC5708310 DOI: 10.1136/openhrt-2017-000635] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 09/05/2017] [Accepted: 11/07/2017] [Indexed: 12/11/2022] Open
Abstract
Background The present study explored and compared the immediate responses in markers of inflammation and angiogenesis in maintenance heart transplant (HTx) recipients before, during and after sessions of high-intensity interval training (HIT) versus moderate-intensity continuous training (MICT). The study aimed to explain some of the trigger mechanisms behind HIT in HTx recipients. Methods This cross-over study included 14 HTx patients (mean±SD age: 53±13 years; time since HTx, 3±2 years). All participants underwent baseline blood samples and a cardiopulmonary exercise test during their first visit. The next two visits included one HIT session and one MICT session, in randomised order. Blood samples were taken during and after each exercise session. Myokines and inflammatory markers related to vascular inflammation, blood-platelet activation and modulation of angiogenesis were analysed. Results The main findings in this study were (1) exercise, regardless of intensity, induced a significant immediate response in several vascular, angiogenetic and in particular platelet-derived inflammatory mediators in HTx recipients. (2) HIT showed trends to induce an increased response in von Willebrand factor, vascular endothelial growth factor-1 and angiopoetin-2, and a decreased response in growth differentiation factor-15, compared with MICT. Conclusions This pattern and in particular the trend towards an increased angiogenetic mediator response could contribute to the beneficial effects of HIT in HTx recipients. Trial registration number NCT02602834.
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Affiliation(s)
- Marianne Yardley
- Department of Cardiology, Oslo University Hospital, Oslo, Norway
- Faculty of Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
- The Norwegian Health Association, Oslo, Norway
| | - Thor Ueland
- Faculty of Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
- Research Institute for Internal Medicine, Oslo University Hospital, Oslo, Norway
- K.G. Jebsen Inflammatory Research Center, University of Oslo, Oslo, Norway
- K.G. Jebsen Thrombosis and Expertise Center (TREC), The Arctic University of Norway, Tromsø, Norway
| | - Pål Aukrust
- Faculty of Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
- Research Institute for Internal Medicine, Oslo University Hospital, Oslo, Norway
- K.G. Jebsen Inflammatory Research Center, University of Oslo, Oslo, Norway
- K.G. Jebsen Thrombosis and Expertise Center (TREC), The Arctic University of Norway, Tromsø, Norway
- Section of Clinical Immunology and Infectious Disease, Oslo Universitetssykehus, Oslo, Norway
| | - Annika Michelsen
- Faculty of Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
- Research Institute for Internal Medicine, Oslo University Hospital, Oslo, Norway
| | | | - Lars Gullestad
- Department of Cardiology, Oslo University Hospital, Oslo, Norway
- Faculty of Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
- Center for Heart Failure Research, University of Oslo, Oslo, Norway
| | - Kari Nytrøen
- Department of Cardiology, Oslo University Hospital, Oslo, Norway
- Faculty of Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
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Foroutan F, Alba AC, Guyatt G, Duero Posada J, Ng Fat Hing N, Arseneau E, Meade M, Hanna S, Badiwala M, Ross H. Predictors of 1-year mortality in heart transplant recipients: a systematic review and meta-analysis. Heart 2017; 104:151-160. [DOI: 10.1136/heartjnl-2017-311435] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 04/17/2017] [Accepted: 06/06/2017] [Indexed: 11/04/2022] Open
Abstract
ObjectiveA systematic summary of the observational studies informing heart transplant guideline recommendations for selection of candidates and donors has thus far been unavailable. We performed a meta-analysis to better understand the impact of such known risk factors.MethodsWe systematically searched and meta-analysed the association between known pretransplant factor and 1-year mortality identified by multivariable regression models. Our review used the Grading of Recommendations, Assessment, Development and Evaluation for assessing the quality of assessment. We pooled risk estimates by using random effects models.ResultsRecipient variables including age (HR 1.16 per 10-year increase, 95% CI 1.10–1.22, high quality), congenital aetiology (HR 2.35, 95% CI 1.62 to 3.41, moderate quality), diabetes (HR 1.37, 95% CI 1.15 to 1.62, high quality), creatinine (HR 1.11 per 1 mg/dL increase, 95% CI 1.06 to 1.16, high quality), mechanical ventilation (HR 2.46, 95% CI 1.48 to 4.09, low quality) and short-term mechanical circulatory support (MCS) (HR 2.47, 95% CI 1.04 to 5.87, low quality) were significantly associated with 1-year mortality. Donor age (HR 1.20 per 10-year increase, 95% CI 1.14 to 1.26, high quality) and female donor to male recipient sex mismatch (HR 1.38, 95% CI 1.06 to 1.80, high quality) were significantly associated with 1-year mortality. None of the operative factors proved significant predictors.ConclusionHigh-quality and moderate-quality evidence demonstrates that recipient age, congenital aetiology, creatinine, pulsatile MCS, donor age and female donor to male recipient sex mismatch are associated with 1-year mortality post heart transplant. The results of this study should inform future guideline and predictive model development.
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Yardley M, Gullestad L, Bendz B, Bjørkelund E, Rolid K, Arora S, Nytrøen K. Long-term effects of high-intensity interval training in heart transplant recipients: A 5-year follow-up study of a randomized controlled trial. Clin Transplant 2016; 31. [DOI: 10.1111/ctr.12868] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/31/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Marianne Yardley
- Department of Cardiology; Oslo University Hospital, Rikshospitalet; Oslo Norway
- The Norwegian Health Association; Oslo Norway
- Faculty of Medicine; University of Oslo; Oslo Norway
| | - Lars Gullestad
- Department of Cardiology; Oslo University Hospital, Rikshospitalet; Oslo Norway
- Faculty of Medicine; University of Oslo; Oslo Norway
- Center for Heart Failure Research; Faculty of Medicine; University of Oslo; Oslo Norway
| | - Bjørn Bendz
- Department of Cardiology; Oslo University Hospital, Rikshospitalet; Oslo Norway
- Faculty of Medicine; University of Oslo; Oslo Norway
| | | | - Katrine Rolid
- Department of Cardiology; Oslo University Hospital, Rikshospitalet; Oslo Norway
| | - Satish Arora
- Department of Cardiology; Oslo University Hospital, Rikshospitalet; Oslo Norway
| | - Kari Nytrøen
- Department of Cardiology; Oslo University Hospital, Rikshospitalet; Oslo Norway
- Faculty of Medicine; University of Oslo; Oslo Norway
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Correlates and Outcomes of Posttransplant Smoking in Solid Organ Transplant Recipients. Transplantation 2016; 100:2252-2263. [DOI: 10.1097/tp.0000000000001335] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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