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Otto-Meyer S, Wang AP, Griffith GJ, Gambetta K, Ward K. Indication for Pediatric Heart Transplant Affects Longitudinal Chronotropy on Cardiopulmonary Exercise Testing. Pediatr Cardiol 2024:10.1007/s00246-024-03623-5. [PMID: 39153090 DOI: 10.1007/s00246-024-03623-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Accepted: 08/08/2024] [Indexed: 08/19/2024]
Abstract
Studies have suggested that pediatric patients with heart transplants (HT) due to congenital heart disease (CHD) perform differently on cardiopulmonary exercise testing compared to pediatric patients with HT due to cardiomyopathy (CM). However, it is not known if this relationship changes over time. The aim of this study was to examine the differences in cardiopulmonary exercise test (CPET) parameters over time between patients with HT due to CHD versus CM. A large single-institution CPET database was used for this study. We conducted a retrospective cohort study of 250 total CPETs from 93 unique patients, examining how patients with HT due to CHD (109 CPETs, 40 unique patients) differed in CPET performance from patients with HT due to CM (141 CPETs, 53 unique patients) from < 2 years post-HT, 2 to < 6 years post-HT, and ≥ 6 years post-HT. There were no differences between patients with HT due to CHD compared to CM in CPETs performed < 2 years post-HT. In CPETs performed 2 to < 6 years post-HT, the CM group had higher maximal HR and percentage of age-predicted maximal heart rate (APMHR) achieved. At ≥ 6 years post-HT, the CM group continued to have higher maximal HR and percentage of APMHR achieved, but also improved HR recovery at one minute. Initial indication for transplant may affect performance on CPETs post-transplant. Patients with HT due to CM have improved chronotropic measures compared to patients with HT due to CHD and these differences are more pronounced with increased time post-HT.
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Affiliation(s)
- Sebastian Otto-Meyer
- Division of Pediatric Cardiology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA.
| | - Alan P Wang
- Division of Pediatric Cardiology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - Garett J Griffith
- Department of Physical Therapy and Human Movement Sciences, Northwestern University, Chicago, USA
| | - Katheryn Gambetta
- Division of Pediatric Cardiology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - Kendra Ward
- Division of Pediatric Cardiology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
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2
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Gondi KT, Hammer Y, Yosef M, Golbus JR, Madamanchi C, Aaronson KD, Murthy VL, Konerman MC. Longitudinal Change and Predictors of Myocardial Flow Reserve by Positron Emission Tomography for the Evaluation of Cardiac Allograft Vasculopathy Following Heart Transplantation. J Card Fail 2024; 30:915-925. [PMID: 37890655 DOI: 10.1016/j.cardfail.2023.09.013] [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: 11/20/2022] [Revised: 09/16/2023] [Accepted: 09/19/2023] [Indexed: 10/29/2023]
Abstract
BACKGROUND Positron emission tomography (PET) myocardial flow reserve (MFR) is a noninvasive method of detecting cardiac allograft vasculopathy in recipients of heart transplants (HTs). There are limited data on longitudinal change and predictors of MFR following HT. METHODS We conducted a retrospective analysis of HT recipients undergoing PET myocardial perfusion imaging at an academic center. Multivariable linear and Cox regression models were constructed to identify longitudinal trends, predictors and the prognostic value of MFR after HT. RESULTS Of HT recipients, 183 underwent 658 PET studies. The average MFR was 2.34 ± 0.70. MFR initially increased during the first 3 years following HT (+ 0.12 per year; P = 0.01) before beginning to decline at an annual rate of -0.06 per year (P < 0.001). MFR declines preceding acute rejection and improves after treatment. Treatment with mammalian target of rapamycin (mTOR) inhibitors (37.2%) slowed the rate of annual MFR decline (P = 0.03). Higher-intensity statin therapy was associated with improved MFR. Longer time post-transplant (P < 0.001), hypertension (P < 0.001), chronic kidney disease (P < 0.001), diabetes mellitus (P = 0.038), antibody-mediated rejection (P = 0.040), and cytomegalovirus infection (P = 0.034) were associated with reduced MFR. Reduced MFR (HR: 7.6, 95% CI: 4.4-13.4; P < 0.001) and PET-defined ischemia (HR: 2.3, 95% CI: 1.4-3.9; P < 0.001) were associated with a higher risk of the composite outcome of mortality, retransplantation, heart failure hospitalization, acute coronary syndrome, or revascularization. CONCLUSION MFR declines after the third post-transplant year and is prognostic for cardiovascular events. Cardiometabolic risk-factor modification and treatment with higher-intensity statin therapy and mechanistic target of rapamycin inhibitors are associated with a higher MFR.
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Affiliation(s)
- Keerthi T Gondi
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI.
| | - Yoav Hammer
- Division of Cardiovascular Medicine, University of Michigan, Ann Arbor, MI
| | - Matheos Yosef
- Michigan Institute for Clinical and Health Research, University of Michigan, Ann Arbor, MI
| | - Jessica R Golbus
- Division of Cardiovascular Medicine, University of Michigan, Ann Arbor, MI
| | | | - Keith D Aaronson
- Division of Cardiovascular Medicine, University of Michigan, Ann Arbor, MI
| | - Venkatesh L Murthy
- Division of Cardiovascular Medicine, University of Michigan, Ann Arbor, MI
| | - Matthew C Konerman
- Division of Cardiovascular Medicine, University of Michigan, Ann Arbor, MI
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3
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Simonenko M, Hansen D, Niebauer J, Volterrani M, Adamopoulos S, Amarelli C, Ambrosetti M, Anker SD, Bayes-Genis A, Gal TB, Bowen TS, Cacciatore F, Caminiti G, Cavaretta E, Chioncel O, Coats AJS, Cohen-Solal A, D'Ascenzi F, de Pablo Zarzosa C, Gevaert AB, Gustafsson F, Kemps H, Hill L, Jaarsma T, Jankowska E, Joyce E, Krankel N, Lainscak M, Lund LH, Moura B, Nytrøen K, Osto E, Piepoli M, Potena L, Rakisheva A, Rosano G, Savarese G, Seferovic PM, Thompson DR, Thum T, Van Craenenbroeck EM. Prevention and rehabilitation after heart transplantation: A clinical consensus statement of the European Association of Preventive Cardiology, Heart Failure Association of the ESC, and the European Cardio Thoracic Transplant Association, a section of ESOT. Eur J Prev Cardiol 2024:zwae179. [PMID: 38894688 DOI: 10.1093/eurjpc/zwae179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 01/20/2024] [Accepted: 02/21/2024] [Indexed: 06/21/2024]
Abstract
Little is known either about either physical activity patterns, or other lifestyle-related prevention measures in heart transplantation (HTx) recipients. The history of HTx started more than 50 years ago but there are still no guidelines or position papers highlighting the features of prevention and rehabilitation after HTx. The aims of this scientific statement are (i) to explain the importance of prevention and rehabilitation after HTx, and (ii) to promote the factors (modifiable/non-modifiable) that should be addressed after HTx to improve patients' physical capacity, quality of life and survival. All HTx team members have their role to play in the care of these patients and multidisciplinary prevention and rehabilitation programmes designed for transplant recipients. HTx recipients are clearly not healthy disease-free subjects yet they also significantly differ from heart failure patients or those who are supported with mechanical circulatory support. Therefore, prevention and rehabilitation after HTx both need to be specifically tailored to this patient population and be multidisciplinary in nature. Prevention and rehabilitation programmes should be initiated early after HTx and continued during the entire post-transplant journey. This clinical consensus.
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Affiliation(s)
- Maria Simonenko
- Cardiopulmonary Exercise Test Research Department, Heart Transplantation Outpatient Department, V.A. Almazov National Medical Research Centre, St. Petersburg, Russia
| | - Dominique Hansen
- REVAL and BIOMED Rehabilitation Research Center, Hasselt University, Hasselt, Belgium
- Heart Centre Hasselt, Jessa Hospital, Hasselt, Belgium
| | - Josef Niebauer
- University Institute of Sports Medicine, Prevention and Rehabilitation, Paracelsus Medical University, Salzburg, Austria
| | | | - Stamatis Adamopoulos
- Heart Failure and Heart Transplantation Unit, Onassis Cardiac Surgery Center, Athens, Greece
| | - Cristiano Amarelli
- Department of Cardiac Surgery and Transplants, Monaldi Hospital, Azienda dei Colli, Naples, Italy
| | - Marco Ambrosetti
- Cardiovascular Rehabilitation Unit, ASST Crema, Santa Marta Hospital, Rivolta d'Adda (CR), Italy
| | - Stefan D Anker
- Department of Cardiology (CVK), Berlin Institute of Health Center for Regenerative Therapies (BCRT), German Centre for Cardiovascular Research (DZHK) partner site Berlin, Charité Universitätsmedizin Berlin, Berlin, Germany
| | | | - Tuvia Ben Gal
- Heart Failure Unit, Cardiology Department, Rabin Medical Center, Petah Tikva and Sackler, Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - T Scott Bowen
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Francesco Cacciatore
- Department of Translational Medicine, University of Naples 'Federico II', Naples, Italy
| | | | - Elena Cavaretta
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
- Mediterranea Cardiocentro, Naples, Italy
| | - Ovidiu Chioncel
- Emergency Institute for Cardiovascular Diseases 'Prof. C.C. Iliescu', Bucharest, Romania
- University of Medicine Carol Davila, Bucharest, Romania
| | | | - Alain Cohen-Solal
- Cardiology Department, University of Paris, INSERM UMRS-942, Hopital Lariboisiere, AP-HP, Paris, France
| | - Flavio D'Ascenzi
- Division of Cardiology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | | | - Andreas B Gevaert
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, Antwerp, Belgium
- Department of Cardiology, Antwerp University Hospital, Edegem, Belgium
| | - Finn Gustafsson
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Hareld Kemps
- Department of Cardiology, Maxima Medical Centre, Eindhoven, The Netherlands
- Department of Industrial Design, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Loreena Hill
- School of Nursing and Midwifery, Queen's University Belfast, Belfast, UK
| | - Tiny Jaarsma
- Department of Health, Medicine and Caring Science, Linköping University, Linköping, Sweden
- Julius Center, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Emer Joyce
- Department of Cardiology, Mater University Hospital, Dublin, Ireland
- School of Medicine, University College Dublin, Dublin, Ireland
| | - Nicolle Krankel
- Universitätsmedizin Berlin Campus Benjamin Franklin Klinik für Kardiologie Charite, Berlin, Germany
| | | | - Lars H Lund
- Department of Medicine, Karolinska Institutet and Heart and Vascular Theme, Karolinska University Hospital, Stockholm, Sweden
| | - Brenda Moura
- Armed Forces Hospital, Porto, Portugal
- Centre for Health Technologies and Services Research, Faculty of Medicine of University of Porto, Porto, Portugal
| | - Kari Nytrøen
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Elena Osto
- Division of Physiology and Pathophysiology, Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Medical University of Graz, Graz, Austria
- Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Massimo Piepoli
- Dipartimento Scienze Biomediche per la Salute, Universita' Degli Studi di Milan, Milan, Italy
- Cardiologia Universitaria, IRCCS Policlinico San Donato, Milan, Italy
| | | | - Amina Rakisheva
- Department of Cardiology, Scientific Institution of Cardiology and Internal Diseases, Almaty, Kazakhstan
- Department of Cardiology, Kapshagai City Hospital, Almaty, Kazakhstan
| | - Giuseppe Rosano
- St. George's Hospital NHS Trust University of London, London, UK
| | - Gianluigi Savarese
- Division of Cardiology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Petar M Seferovic
- Faculty of Medicine and Heart Failure Center, University of Belgrade, Belgrade University Medical Center, Belgrade, Serbia
| | - David R Thompson
- School of Nursing and Midwifery, Queen's University Belfast, Belfast, UK
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School and Fraunhofer Institute for Toxicology and Experimental Research, Hannover, Germany
| | - Emeline M Van Craenenbroeck
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, Antwerp, Belgium
- Department of Cardiology, Antwerp University Hospital, Edegem, Belgium
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Simonenko M, Hansen D, Niebauer J, Volterrani M, Adamopoulos S, Amarelli C, Ambrosetti M, Anker SD, Bayes-Genis A, Ben Gal T, Bowen TS, Cacciatore F, Caminiti G, Cavarretta E, Chioncel O, Coats AJS, Cohen-Solal A, D’Ascenzi F, de Pablo Zarzosa C, Gevaert AB, Gustafsson F, Kemps H, Hill L, Jaarsma T, Jankowska E, Joyce E, Krankel N, Lainscak M, Lund LH, Moura B, Nytrøen K, Osto E, Piepoli M, Potena L, Rakisheva A, Rosano G, Savarese G, Seferovic PM, Thompson DR, Thum T, Van Craenenbroeck EM. Prevention and Rehabilitation After Heart Transplantation: A Clinical Consensus Statement of the European Association of Preventive Cardiology, Heart Failure Association of the ESC, and the European Cardio Thoracic Transplant Association, a Section of ESOT. Transpl Int 2024; 37:13191. [PMID: 39015154 PMCID: PMC11250379 DOI: 10.3389/ti.2024.13191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Accepted: 05/30/2024] [Indexed: 07/18/2024]
Abstract
Little is known either about either physical activity patterns, or other lifestyle-related prevention measures in heart transplantation (HTx) recipients. The history of HTx started more than 50 years ago but there are still no guidelines or position papers highlighting the features of prevention and rehabilitation after HTx. The aims of this scientific statement are (i) to explain the importance of prevention and rehabilitation after HTx, and (ii) to promote the factors (modifiable/non-modifiable) that should be addressed after HTx to improve patients' physical capacity, quality of life and survival. All HTx team members have their role to play in the care of these patients and multidisciplinary prevention and rehabilitation programmes designed for transplant recipients. HTx recipients are clearly not healthy disease-free subjects yet they also significantly differ from heart failure patients or those who are supported with mechanical circulatory support. Therefore, prevention and rehabilitation after HTx both need to be specifically tailored to this patient population and be multidisciplinary in nature. Prevention and rehabilitation programmes should be initiated early after HTx and continued during the entire post-transplant journey. This clinical consensus statement focuses on the importance and the characteristics of prevention and rehabilitation designed for HTx recipients.
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Affiliation(s)
- Maria Simonenko
- Cardiopulmonary Exercise Test Research Department, Heart Transplantation Outpatient Department, V. A. Almazov National Medical Research Centre, St. Petersburg, Russia
| | - Dominique Hansen
- REVAL and BIOMED Rehabilitation Research Center, Hasselt University, Hasselt, Belgium
- Heart Centre Hasselt, Jessa Hospital, Hasselt, Belgium
| | - Josef Niebauer
- University Institute of Sports Medicine, Prevention and Rehabilitation, Paracelsus Medical University, Salzburg, Austria
| | | | - Stamatis Adamopoulos
- Heart Failure and Heart Transplantation Unit, Onassis Cardiac Surgery Center, Athens, Greece
| | - Cristiano Amarelli
- Department of Cardiac Surgery and Transplants, Monaldi Hospital, Azienda dei Colli, Naples, Italy
| | - Marco Ambrosetti
- Cardiovascular Rehabilitation Unit, ASST Crema, Santa Marta Hospital, Rivolta D’Adda, Italy
| | - Stefan D. Anker
- Department of Cardiology (CVK), Berlin Institute of Health Center for Regenerative Therapies (BCRT), German Centre for Cardiovascular Research (DZHK) Partner Site Berlin, Charité Universitätsmedizin Berlin, Berlin, Germany
| | | | - Tuvia Ben Gal
- Heart Failure Unit, Cardiology Department, Rabin Medical Center, Petah Tikva and Sackler, Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - T. Scott Bowen
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
| | - Francesco Cacciatore
- Department of Translational Medicine, University of Naples “Federico II”, Naples, Italy
| | | | - Elena Cavarretta
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
- Mediterranea Cardiocentro, Naples, Italy
| | - Ovidiu Chioncel
- Emergency Institute for Cardiovascular Diseases “Prof. C. C. Iliescu”, Bucharest, Romania
- University of Medicine Carol Davila, Bucharest, Romania
| | | | - Alain Cohen-Solal
- Cardiology Department, University of Paris, INSERM UMRS-942, Hopital Lariboisiere, AP-HP, Paris, France
| | - Flavio D’Ascenzi
- Division of Cardiology, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | | | - Andreas B. Gevaert
- Research Group Cardiovascular Diseases, Genetics, Pharmacology and Physiopathology of Heart, Blood Vessels and Skeleton (GENCOR) Department, University of Antwerp, Antwerp, Belgium
- Department of Cardiology, Antwerp University Hospital, Edegem, Belgium
| | - Finn Gustafsson
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Hareld Kemps
- Department of Cardiology, Maxima Medical Centre, Eindhoven, Netherlands
- Department of Industrial Design, Eindhoven University of Technology, Eindhoven, Netherlands
| | - Loreena Hill
- School of Nursing and Midwifery, Queen’s University Belfast, Belfast, United Kingdom
| | - Tiny Jaarsma
- Department of Health, Medicine and Caring Science, Linköping University, Linköping, Sweden
- Julius Center, University Medical Center Utrecht, Utrecht, Netherlands
| | - Ewa Jankowska
- Department of Heart Diseases, Wroclaw Medical University, Wroclaw, Poland
| | - Emer Joyce
- Department of Cardiology, Mater University Hospital, Dublin, Ireland
- School of Medicine, University College Dublin, Dublin, Ireland
| | - Nicolle Krankel
- Universitätsmedizin Berlin Campus Benjamin Franklin Klinik für Kardiologie Charite, Berlin, Germany
| | | | - Lars H. Lund
- Department of Medicine, Karolinska Institutet and Heart and Vascular Theme, Karolinska University Hospital, Stockholm, Sweden
| | - Brenda Moura
- Armed Forces Hospital, Porto, Portugal
- Centre for Health Technologies and Services Research, Faculty of Medicine of University of Porto, Porto, Portugal
| | - Kari Nytrøen
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Elena Osto
- Division of Physiology and Pathophysiology, Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Medical University of Graz, Graz, Austria
- Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Massimo Piepoli
- Dipartimento Scienze Biomediche per la Salute, Universita’ Degli Studi di Milan, Milan, Italy
- Cardiologia Universitaria, IRCCS Policlinico San Donato, Milan, Italy
| | | | - Amina Rakisheva
- Department of Cardiology, Scientific Institution of Cardiology and Internal Diseases, Almaty, Kazakhstan
- Department of Cardiology, Kapshagai City Hospital, Almaty, Kazakhstan
| | - Giuseppe Rosano
- St. George’s Hospital NHS Trust University of London, London, United Kingdom
| | - Gianluigi Savarese
- Division of Cardiology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Petar M. Seferovic
- Faculty of Medicine and Heart Failure Center, University of Belgrade, Belgrade University Medical Center, Belgrade, Serbia
| | - David R. Thompson
- School of Nursing and Midwifery, Queen’s University Belfast, Belfast, United Kingdom
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School and Fraunhofer Institute for Toxicology and Experimental Research, Hannover, Germany
| | - Emeline M. Van Craenenbroeck
- Research Group Cardiovascular Diseases, Genetics, Pharmacology and Physiopathology of Heart, Blood Vessels and Skeleton (GENCOR) Department, University of Antwerp, Antwerp, Belgium
- Department of Cardiology, Antwerp University Hospital, Edegem, Belgium
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5
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Haberbusch M, Reil J, Uyanik-Ünal K, Schukro C, Zuckermann A, Moscato F. Decoding cardiac reinnervation from cardiac autonomic markers: A mathematical model approach. J Heart Lung Transplant 2024; 43:985-995. [PMID: 38360162 DOI: 10.1016/j.healun.2024.01.018] [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: 08/02/2023] [Revised: 12/26/2023] [Accepted: 01/31/2024] [Indexed: 02/17/2024] Open
Abstract
BACKGROUND Although cardiac autonomic markers (CAMs) are commonly used to assess cardiac reinnervation in heart-transplant patients, their relationship to the degree of sympathetic and vagal cardiac reinnervation is not well understood yet. To study this relationship, we applied a mathematical model of the cardiovascular system and its autonomic control. METHODS By simulating varying levels of sympathetic and vagal efferent sinoatrial reinnervation, we analyzed the induced changes in CAMs including resting heart rate (HR), bradycardic and tachycardic HR response to Valsalva maneuver, root mean square of successive differences between normal heartbeats (RMSSD), low-frequency (LF), high-frequency (HF), and total spectral power (TSP). RESULTS For assessment of vagal cardiac reinnervation levels >20%, resting HR (ρ = 0.99, p < 0.05), RMSSD (ρ = 0.97, p < 0.05), and TSP (ρ = 0.96, p < 0.05) may be equally suitable as HF-power (ρ = 0.97, p < 0.05). To assess sympathetic reinnervation, LF/HF ratio (ρ = 0.87, p < 0.05) and tachycardic response to Valsalva maneuver (ρ = 0.9, p < 0.05) may be more suitable than LF-power (ρ = 0.77, p < 0.05). CONCLUSIONS Our model reports mechanistic relationships between CAMs and levels of efferent autonomic sinoatrial reinnervation. The results indicate differences in the suitability of these markers to assess vagal and sympathetic reinnervation. Although our analysis is purely conceptual, the developed model can help to gain important insights into the genesis of CAMs and their relationship to efferent sinoatrial reinnervation and, thus, provide indications for clinical study evaluation.
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Affiliation(s)
- Max Haberbusch
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria.
| | - Julius Reil
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria
| | - Keziban Uyanik-Ünal
- Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
| | - Christoph Schukro
- Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
| | - Andreas Zuckermann
- Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
| | - Francesco Moscato
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria
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6
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von Scheidt W, Reichart B, Meiser B, von Scheidt M, Sen P, Schwarz F, Harmel E, Bengel FM, Dick A, Ueberfuhr P, Reichenspurner H, Jaeckel E, Schwinzer R, Hagl C. Unique 40-year survival after heart transplantation with normal graft function and spontaneous operational tolerance. Clin Res Cardiol 2024; 113:661-671. [PMID: 37982861 PMCID: PMC11026283 DOI: 10.1007/s00392-023-02341-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 11/07/2023] [Indexed: 11/21/2023]
Abstract
Unique 40-year survival after heart transplantation with normal graft function and spontaneous operational tolerance.
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Affiliation(s)
- Wolfgang von Scheidt
- I.Medizinische Klinik, University Hospital Augsburg, University of Augsburg, Stenglinstr. 2, 86156, Augsburg, Germany.
- Ludwig-Maximilians-University Munich, Munich, Germany.
| | - Bruno Reichart
- Department of Cardiac Surgery, University Hospital Großhadern, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Bruno Meiser
- Transplant Center, University Hospital Großhadern, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Moritz von Scheidt
- Department of Cardiovascular Diseases, German Heart Center Munich, Technical University Munich, Munich, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Partho Sen
- Department of Cardiovascular Diseases, German Heart Center Munich, Technical University Munich, Munich, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Florian Schwarz
- Ludwig-Maximilians-University Munich, Munich, Germany
- Department of Diagnostic and Interventional Radiology, University Hospital Augsburg, University of Augsburg, Augsburg, Germany
| | - Eva Harmel
- I.Medizinische Klinik, University Hospital Augsburg, University of Augsburg, Stenglinstr. 2, 86156, Augsburg, Germany
| | - Frank M Bengel
- Department of Nuclear Medicine, Hannover Medical School, Hannover, Germany
| | - Andrea Dick
- Laboratory for Immunogenetics and Molecular Diagnostics, University Hospital Großhadern, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Peter Ueberfuhr
- Department of Cardiac Surgery, University Hospital Großhadern, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Hermann Reichenspurner
- Department of Cardiovascular Surgery, University Heart and Vascular Center Hamburg, Hamburg, Germany
| | - Elmar Jaeckel
- Ajmera Transplant Center, UHN, University of Toronto, Toronto, Canada
| | - Reinhard Schwinzer
- Department of General-, Visceral- and Transplantation-Surgery, Hannover Medical School, Hannover, Germany
| | - Christian Hagl
- Department of Cardiac Surgery, University Hospital Großhadern, Ludwig-Maximilians-University Munich, Munich, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
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7
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Giannino G, Braia V, Griffith Brookles C, Giacobbe F, D'Ascenzo F, Angelini F, Saglietto A, De Ferrari GM, Dusi V. The Intrinsic Cardiac Nervous System: From Pathophysiology to Therapeutic Implications. BIOLOGY 2024; 13:105. [PMID: 38392323 PMCID: PMC10887082 DOI: 10.3390/biology13020105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/24/2024]
Abstract
The cardiac autonomic nervous system (CANS) plays a pivotal role in cardiac homeostasis as well as in cardiac pathology. The first level of cardiac autonomic control, the intrinsic cardiac nervous system (ICNS), is located within the epicardial fat pads and is physically organized in ganglionated plexi (GPs). The ICNS system does not only contain parasympathetic cardiac efferent neurons, as long believed, but also afferent neurons and local circuit neurons. Thanks to its high degree of connectivity, combined with neuronal plasticity and memory capacity, the ICNS allows for a beat-to-beat control of all cardiac functions and responses as well as integration with extracardiac and higher centers for longer-term cardiovascular reflexes. The present review provides a detailed overview of the current knowledge of the bidirectional connection between the ICNS and the most studied cardiac pathologies/conditions (myocardial infarction, heart failure, arrhythmias and heart transplant) and the potential therapeutic implications. Indeed, GP modulation with efferent activity inhibition, differently achieved, has been studied for atrial fibrillation and functional bradyarrhythmias, while GP modulation with efferent activity stimulation has been evaluated for myocardial infarction, heart failure and ventricular arrhythmias. Electrical therapy has the unique potential to allow for both kinds of ICNS modulation while preserving the anatomical integrity of the system.
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Affiliation(s)
- Giuseppe Giannino
- Cardiology, Department of Medical Sciences, University of Turin, 10124 Torino, Italy
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
| | - Valentina Braia
- Cardiology, Department of Medical Sciences, University of Turin, 10124 Torino, Italy
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
| | - Carola Griffith Brookles
- Cardiology, Department of Medical Sciences, University of Turin, 10124 Torino, Italy
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
| | - Federico Giacobbe
- Cardiology, Department of Medical Sciences, University of Turin, 10124 Torino, Italy
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
| | - Fabrizio D'Ascenzo
- Cardiology, Department of Medical Sciences, University of Turin, 10124 Torino, Italy
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
| | - Filippo Angelini
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
| | - Andrea Saglietto
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
| | - Gaetano Maria De Ferrari
- Cardiology, Department of Medical Sciences, University of Turin, 10124 Torino, Italy
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
| | - Veronica Dusi
- Cardiology, Department of Medical Sciences, University of Turin, 10124 Torino, Italy
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
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8
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Christensen AH, Wyller VB, Nygaard S, Rolid K, Nytrøen K, Gullestad L, Fiane A, Thaulow E, Saul JP, Døhlen G. Factors Associated With Sinoatrial Reinnervation After Heart Transplantation. Transplant Direct 2023; 9:e1553. [PMID: 37928482 PMCID: PMC10624457 DOI: 10.1097/txd.0000000000001553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 09/05/2023] [Accepted: 09/22/2023] [Indexed: 11/07/2023] Open
Abstract
Background Factors associated with sympathetic and parasympathetic sinoatrial reinnervation after heart transplantation (HTx) are inadequately studied. Methods Fifty transplant recipients were examined at 7 to 12 wk (index visit), 6, 12, 24, and 36 mo after HTx. Supine rest heart rate variability in the low-frequency (LF) domain (sympathetic and parasympathetic sinoatrial reinnervation) and the high-frequency (HF) domain (parasympathetic sinoatrial reinnervation) were measured repeatedly and related to selected recipient, donor, and perisurgical characteristics. We primarily aimed to identify index visit factors that affect the sinoatrial reinnervation process. Secondarily, we examined overall associations between indices of reinnervation and repeatedly measured recipient characteristics to generate new hypotheses regarding the consequences of reinnervation. Results LF and HF variability increased time dependently. In multivariate modeling, a pretransplant diagnosis of nonischemic cardiomyopathy (P = 0.038) and higher index visit handgrip strength (P = 0.028) predicted improved LF variability. Recipient age, early episodes of rejection, and duration of extracorporeal circulation were not associated with indices of reinnervation. Study average handgrip strength was positively associated with LF and HF variability (respectively, P = 0.005 and P = 0.029), whereas study average C-reactive protein was negatively associated (respectively, P = 0.015 and P = 0.008). Conclusions Indices of both sympathetic and parasympathetic sinoatrial reinnervation increased with time after HTx. A pretransplant diagnosis of nonischemic cardiomyopathy and higher index visit handgrip strength predicted higher indices of mainly sympathetic reinnervation, whereas age, rejection episodes, and duration of extracorporeal circulation had no association. HTx recipients with higher indices of reinnervation had higher average handgrip strength, suggesting a link between reinnervation and improved frailty. The more reinnervated participants had lower average C-reactive protein, suggesting an inhibitory effect of reinnervation on inflammation, possibly through enhanced function of the inflammatory reflex. These potential effects of reinnervation may affect long-term morbidity in HTx patients and should be scrutinized in future research.
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Affiliation(s)
- Anders H. Christensen
- Department of Pediatric Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Pediatric Research, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Vegard B.B. Wyller
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Pediatrics, Akershus University Hospital, Norway
| | - Sissel Nygaard
- Department of Pediatric Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Katrine Rolid
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
- KG Jebsen Cardiac Research Center and Center for Heart Failure Research, University of Oslo, Norway
- Center for Heart Failure Research, Oslo University Hospital, Norway
| | - Kari Nytrøen
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Lars Gullestad
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
- KG Jebsen Cardiac Research Center and Center for Heart Failure Research, University of Oslo, Norway
- Center for Heart Failure Research, Oslo University Hospital, Norway
| | - Arnt Fiane
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Cardiothoracic Surgery, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Erik Thaulow
- Department of Pediatric Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | - J. Philip Saul
- Department of Pediatrics, West Virginia University, Morgantown, VA
| | - Gaute Døhlen
- Department of Pediatric Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
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9
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Tseng L, Al‐Saidi I, Channagiri V. Spinal anaesthesia with intravenous sedation for total hip arthroplasty in two patients with a history of orthotopic heart transplantation. Anaesth Rep 2023; 11:e12263. [PMID: 38031631 PMCID: PMC10682964 DOI: 10.1002/anr3.12263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/02/2023] [Indexed: 12/01/2023] Open
Abstract
Many patients with orthotopic heart transplantation later undergo non-cardiac surgery. Historically, neuraxial anaesthesia has been avoided in these patients because the denervated heart is unable to compensate for hypotension via the baroreceptor reflex. Here, we present the cases of two patients with prior heart transplantation who underwent total hip arthroplasty under spinal anaesthesia with intravenous sedation. In both cases, this technique was well-tolerated haemodynamically. We propose that spinal anaesthesia with intravenous sedation can be a safe and efficacious anaesthetic technique for selected patients with a history of orthotopic heart transplantation, with careful intraoperative fluid and pharmacological management.
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Affiliation(s)
- L. Tseng
- Department of AnaesthesiologyColumbia University Irving Medical CenterNew YorkNYUSA
| | - I. Al‐Saidi
- Department of AnaesthesiologyColumbia University Irving Medical CenterNew YorkNYUSA
| | - V. Channagiri
- Department of AnaesthesiologyColumbia University Irving Medical CenterNew YorkNYUSA
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10
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Ono R, Iwahana T, Kato H, Kobayashi Y. Heart rate response during cardiopulmonary exercise in the denervated heart. Clin Case Rep 2023; 11:e6851. [PMID: 36703767 PMCID: PMC9871398 DOI: 10.1002/ccr3.6851] [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: 06/13/2022] [Revised: 11/15/2022] [Accepted: 12/31/2022] [Indexed: 01/26/2023] Open
Abstract
The patients after heart transplantation usually present resting tachycardia, a slower increase in heart rate (HR) at the onset of exercise, a blunted chronotropic response to exercise in general, maximal HR being attained in the recovery period rather than at peak exercise, and a slower decline in HR after exercise.
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Affiliation(s)
- Ryohei Ono
- Department of Cardiovascular MedicineChiba University Graduate School of MedicineChuo‐kuChibaJapan
| | - Togo Iwahana
- Department of Cardiovascular MedicineChiba University Graduate School of MedicineChuo‐kuChibaJapan
| | - Hirotoshi Kato
- Department of Cardiovascular MedicineChiba University Graduate School of MedicineChuo‐kuChibaJapan
| | - Yoshio Kobayashi
- Department of Cardiovascular MedicineChiba University Graduate School of MedicineChuo‐kuChibaJapan
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11
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Makita S, Yasu T, Akashi YJ, Adachi H, Izawa H, Ishihara S, Iso Y, Ohuchi H, Omiya K, Ohya Y, Okita K, Kimura Y, Koike A, Kohzuki M, Koba S, Sata M, Shimada K, Shimokawa T, Shiraishi H, Sumitomo N, Takahashi T, Takura T, Tsutsui H, Nagayama M, Hasegawa E, Fukumoto Y, Furukawa Y, Miura SI, Yasuda S, Yamada S, Yamada Y, Yumino D, Yoshida T, Adachi T, Ikegame T, Izawa KP, Ishida T, Ozasa N, Osada N, Obata H, Kakutani N, Kasahara Y, Kato M, Kamiya K, Kinugawa S, Kono Y, Kobayashi Y, Koyama T, Sase K, Sato S, Shibata T, Suzuki N, Tamaki D, Yamaoka-Tojo M, Nakanishi M, Nakane E, Nishizaki M, Higo T, Fujimi K, Honda T, Matsumoto Y, Matsumoto N, Miyawaki I, Murata M, Yagi S, Yanase M, Yamada M, Yokoyama M, Watanabe N, Ito H, Kimura T, Kyo S, Goto Y, Nohara R, Hirata KI. JCS/JACR 2021 Guideline on Rehabilitation in Patients With Cardiovascular Disease. Circ J 2022; 87:155-235. [PMID: 36503954 DOI: 10.1253/circj.cj-22-0234] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shigeru Makita
- Department of Cardiac Rehabilitation, Saitama Medical University International Medical Center
| | - Takanori Yasu
- Department of Cardiovascular Medicine and Nephrology, Dokkyo Medical University Nikko Medical Center
| | - Yoshihiro J Akashi
- Division of Cardiology, Department of Internal Medicine, St. Marianna University School of Medicine
| | - Hitoshi Adachi
- Department of Cardiology, Gunma Prefectural Cardiovascular Center
| | - Hideo Izawa
- Department of Cardiology, Fujita Health University of Medicine
| | - Shunichi Ishihara
- Department of Psychology, Bunkyo University Faculty of Human Sciences
| | - Yoshitaka Iso
- Division of Cardiology, Showa University Fujigaoka Hospital
| | - Hideo Ohuchi
- Department of Pediatrics, National Cerebral and Cardiovascular Center
| | | | - Yusuke Ohya
- Department of Cardiovascular Medicine, Nephrology and Neurology, Graduate School of Medicine, University of the Ryukyus
| | - Koichi Okita
- Graduate School of Lifelong Sport, Hokusho University
| | - Yutaka Kimura
- Department of Health Sciences, Kansai Medical University Hospital
| | - Akira Koike
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | - Masahiro Kohzuki
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine
| | - Shinji Koba
- Division of Cardiology, Department of Medicine, Showa University School of Medicine
| | - Masataka Sata
- Department of Cardiovascular Medicine, Tokushima University Graduate School of Biomedical Sciences
| | - Kazunori Shimada
- Department of Cardiology, Juntendo University School of Medicine
| | | | - Hirokazu Shiraishi
- Department of Cardiovascular Medicine, Kyoto Prefectural University of Medicine
| | - Naokata Sumitomo
- Department of Pediatric Cardiology, Saitama Medical University International Medical Center
| | - Tetsuya Takahashi
- Department of Physical Therapy, Faculty of Health Science, Juntendo University
| | - Tomoyuki Takura
- Department of Healthcare Economics and Health Policy, Graduate School of Medicine, The University of Tokyo
| | - Hiroyuki Tsutsui
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University
| | | | - Emiko Hasegawa
- Faculty of Psychology and Social Welfare, Seigakuin University
| | - Yoshihiro Fukumoto
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kurume University School of Medicine
| | - Yutaka Furukawa
- Department of Cardiovascular Medicine, Kobe City Medical Center General Hospital
| | | | - Satoshi Yasuda
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
| | - Sumio Yamada
- Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine
| | - Yuichiro Yamada
- Center for Diabetes, Endocrinology and Metabolism, Kansai Electric Power Hospital
| | | | | | - Takuji Adachi
- Department of Physical Therapy, Nagoya University Graduate School of Medicine
| | | | | | | | - Neiko Ozasa
- Cardiovascular Medicine, Kyoto University Hospital
| | - Naohiko Osada
- Department of Physical Checking, St. Marianna University Toyoko Hospital
| | - Hiroaki Obata
- Division of Internal Medicine, Niigata Minami Hospital.,Division of Rehabilitation, Niigata Minami Hospital
| | | | - Yusuke Kasahara
- Department of Rehabilitation, St. Marianna University Yokohama Seibu Hospital
| | - Masaaki Kato
- Department of Cardiovascular Surgery, Morinomiya Hospital
| | - Kentaro Kamiya
- Department of Rehabilitation, School of Allied Health Sciences, Kitasato University
| | - Shintaro Kinugawa
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University
| | - Yuji Kono
- Department of Rehabilitation, Fujita Health University Hospital
| | - Yasuyuki Kobayashi
- Department of Medical Technology, Gunma Prefectural Cardiovascular Center
| | | | - Kazuhiro Sase
- Clinical Pharmacology and Regulatory Science, Graduate School of Medicine, Juntendo University
| | - Shinji Sato
- Department of Physical Therapy, Teikyo Heisei University
| | - Tatsuhiro Shibata
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kurume University School of Medicine
| | - Norio Suzuki
- Division of Cardiology, Department of Internal Medicine, St. Marianna University School of Medicine
| | - Daisuke Tamaki
- Department of Nutrition, Showa University Fujigaoka Hospital
| | - Minako Yamaoka-Tojo
- Department of Rehabilitation, School of Allied Health Sciences, Kitasato University
| | - Michio Nakanishi
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | | | - Mari Nishizaki
- Department of Rehabilitation, National Hospital Organization Okayama Medical Center
| | - Taiki Higo
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University
| | - Kanta Fujimi
- Department of Rehabilitation, Fukuoka University Hospital
| | - Tasuku Honda
- Department of Cardiovascular Surgery, Hyogo Brain and Heart Center
| | - Yasuharu Matsumoto
- Department of Cardiovascular Medicine, Shioya Hospital, International University of Health and Welfare
| | | | - Ikuko Miyawaki
- Department of Nursing, Kobe University Graduate School of Health Sciences
| | - Makoto Murata
- Department of Cardiology, Gunma Prefectural Cardiovascular Center
| | - Shusuke Yagi
- Department of Cardiovascular Medicine, Tokushima University Graduate School of Biomedical Sciences
| | - Masanobu Yanase
- Department of Transplantation, National Cerebral and Cardiovascular Center
| | | | - Miho Yokoyama
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | | | | | - Takeshi Kimura
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine
| | - Syunei Kyo
- Tokyo Metropolitan Geriatric Medical Center
| | | | | | - Ken-Ichi Hirata
- Department of Internal Medicine, Kobe University Graduate School of Medicine
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12
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Huang Y, He Z, Manyande A, Feng M, Xiang H. Nerve regeneration in transplanted organs and tracer imaging studies: A review. Front Bioeng Biotechnol 2022; 10:966138. [PMID: 36051591 PMCID: PMC9424764 DOI: 10.3389/fbioe.2022.966138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 07/21/2022] [Indexed: 11/13/2022] Open
Abstract
The technique of organ transplantation is well established and after transplantation the patient might be faced with the problem of nerve regeneration of the transplanted organ. Transplanted organs are innervated by the sympathetic, parasympathetic, and visceral sensory plexuses, but there is a lack of clarity regarding the neural influences on the heart, liver and kidneys and the mechanisms of their innervation. Although there has been considerable recent work exploring the potential mechanisms of nerve regeneration in organ transplantation, there remains much that is unknown about the heterogeneity and individual variability in the reinnervation of organ transplantation. The widespread availability of radioactive nerve tracers has also made a significant contribution to organ transplantation and has helped to investigate nerve recovery after transplantation, as well as providing a direction for future organ transplantation research. In this review we focused on neural tracer imaging techniques in humans and provide some conceptual insights into theories that can effectively support our choice of radionuclide tracers. This also facilitates the development of nuclear medicine techniques and promotes the development of modern medical technologies and computer tools. We described the knowledge of neural regeneration after heart transplantation, liver transplantation and kidney transplantation and apply them to various imaging techniques to quantify the uptake of radionuclide tracers to assess the prognosis of organ transplantation. We noted that the aim of this review is both to provide clinicians and nuclear medicine researchers with theories and insights into nerve regeneration in organ transplantation and to advance imaging techniques and radiotracers as a major step forward in clinical research. Moreover, we aimed to further promote the clinical and research applications of imaging techniques and provide clinicians and research technology developers with the theory and knowledge of the nerve.
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Affiliation(s)
- Yan Huang
- Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Department of Interventional Therapy, the First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Zhigang He
- Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Anne Manyande
- School of Human and Social Sciences, University of West London, London, United Kingdom
| | - Maohui Feng
- Department of Gastrointestinal Surgery, Wuhan Peritoneal Cancer Clinical Medical Research Center, Zhongnan Hospital of Wuhan University, Hubei Key Laboratory of Tumor Biological Behaviors and Hubei Cancer Clinical Study Center, Wuhan, Hubei, China
- *Correspondence: Maohui Feng, ; Hongbing Xiang,
| | - Hongbing Xiang
- Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- *Correspondence: Maohui Feng, ; Hongbing Xiang,
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13
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You've Got Some Nerve (after Heart Transplantation). J Heart Lung Transplant 2022; 41:910-913. [DOI: 10.1016/j.healun.2022.02.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 02/04/2022] [Accepted: 02/05/2022] [Indexed: 11/21/2022] Open
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14
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Fossey MPM, Balthazaar SJT, Squair JW, Williams AM, Poormasjedi-Meibod MS, Nightingale TE, Erskine E, Hayes B, Ahmadian M, Jackson GS, Hunter DV, Currie KD, Tsang TSM, Walter M, Little JP, Ramer MS, Krassioukov AV, West CR. Spinal cord injury impairs cardiac function due to impaired bulbospinal sympathetic control. Nat Commun 2022; 13:1382. [PMID: 35296681 PMCID: PMC8927412 DOI: 10.1038/s41467-022-29066-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 02/20/2022] [Indexed: 02/08/2023] Open
Abstract
Spinal cord injury chronically alters cardiac structure and function and is associated with increased odds for cardiovascular disease. Here, we investigate the cardiac consequences of spinal cord injury on the acute-to-chronic continuum, and the contribution of altered bulbospinal sympathetic control to the decline in cardiac function following spinal cord injury. By combining experimental rat models of spinal cord injury with prospective clinical studies, we demonstrate that spinal cord injury causes a rapid and sustained reduction in left ventricular contractile function that precedes structural changes. In rodents, we experimentally demonstrate that this decline in left ventricular contractile function following spinal cord injury is underpinned by interrupted bulbospinal sympathetic control. In humans, we find that activation of the sympathetic circuitry below the level of spinal cord injury causes an immediate increase in systolic function. Our findings highlight the importance for early interventions to mitigate the cardiac functional decline following spinal cord injury. By combining experimental models with prospective clinical studies, the authors show that spinal cord injury causes a rapid reduction in cardiac function that precedes structural changes, and that the loss of descending sympathetic control is the major cause of reduced cardiac function following spinal cord injury.
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Affiliation(s)
- Mary P M Fossey
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada.,Experimental Medicine, Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Shane J T Balthazaar
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada.,Experimental Medicine, Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Jordan W Squair
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada
| | - Alexandra M Williams
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada.,Department of Cellular and Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | | | - Tom E Nightingale
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada.,School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, UK.,Centre for Trauma Sciences Research, University of Birmingham, Edgabaston, Birmingham, UK
| | - Erin Erskine
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada.,Department of Cellular and Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Brian Hayes
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada
| | - Mehdi Ahmadian
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada.,School of Kinesiology, Faculty of Education, University of British Columbia, Vancouver, BC, Canada
| | - Garett S Jackson
- Faculty of Health and Social Development, University of British Columbia, Kelowna, BC, Canada
| | - Diana V Hunter
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada
| | - Katharine D Currie
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada
| | - Teresa S M Tsang
- Division of Cardiology, University of British Columbia, Vancouver General and University of British Columbia Hospital Echocardiography Department, Vancouver, BC, Canada
| | - Matthias Walter
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada.,Department of Urology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Jonathan P Little
- School of Health and Exercise Sciences, University of British Columbia, Kelowna, BC, Canada
| | - Matt S Ramer
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada.,Department of Zoology, Faculty of Science, University of British Columbia, Vancouver, BC, Canada
| | - Andrei V Krassioukov
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada. .,Experimental Medicine, Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. .,Division of Physical Medicine and Rehabilitation, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. .,GF Strong Rehabilitation Centre, Vancouver Coastal Health, Vancouver, BC, Canada.
| | - Christopher R West
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada. .,Department of Cellular and Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
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15
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Davis H, Liu K, Li N, Li D, Paterson DJ. Healthy cardiac myocytes can decrease sympathetic hyperexcitability in the early stages of hypertension. Front Synaptic Neurosci 2022; 14:949150. [PMID: 35989710 PMCID: PMC9386373 DOI: 10.3389/fnsyn.2022.949150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 07/13/2022] [Indexed: 01/08/2023] Open
Abstract
Sympathetic neurons are powerful drivers of cardiac excitability. In the early stages of hypertension, sympathetic hyperactivity is underpinned by down regulation of M current and increased activity of Cav2.2 that is associated with greater intracellular calcium transients and enhanced neurotransmission. Emerging evidence suggests that retrograde signaling from the myocyte itself can modulate synaptic plasticity. Here we tested the hypothesis that cross culturing healthy myocytes onto diseased stellate neurons could influence sympathetic excitability. We employed neuronal mono-cultures, co-cultures of neonatal ventricular myocytes and sympathetic stellate neurons, and mono-cultures of sympathetic neurons with media conditioned by myocytes from normal (Wistar) and pre-hypertensive (SHR) rats, which have heightened sympathetic responsiveness. Neuronal firing properties were measured by current-clamp as a proxy for neuronal excitability. SHR neurons had a maximum higher firing rate, and reduced rheobase compared to Wistar neurons. There was no difference in firing rate or other biophysical properties in Wistar neurons when they were co-cultured with healthy myocytes. However, the firing rate decreased, phenocopying the Wistar response when either healthy myocytes or media in which healthy myocytes were grown was cross-cultured with SHR neurons. This supports the idea of a paracrine signaling pathway from the healthy myocyte to the diseased neuron, which can act as a modulator of sympathetic excitability.
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Affiliation(s)
- Harvey Davis
- Burson Sanderson Cardiac Science Centre, Department of Physiology, Anatomy & Genetics, University of Oxford, Oxford, United Kingdom.,Department of Neuroscience, Physiology & Pharmacology, University College London, London, United Kingdom
| | - Kun Liu
- Burson Sanderson Cardiac Science Centre, Department of Physiology, Anatomy & Genetics, University of Oxford, Oxford, United Kingdom
| | - Ni Li
- Burson Sanderson Cardiac Science Centre, Department of Physiology, Anatomy & Genetics, University of Oxford, Oxford, United Kingdom
| | - Dan Li
- Burson Sanderson Cardiac Science Centre, Department of Physiology, Anatomy & Genetics, University of Oxford, Oxford, United Kingdom
| | - David J Paterson
- Burson Sanderson Cardiac Science Centre, Department of Physiology, Anatomy & Genetics, University of Oxford, Oxford, United Kingdom
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16
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Heart diseases (autonomic dysfunctions)—Myocardial innervation imaging: 123I-MIBG planar scintigraphy and SPECT. Nucl Med Mol Imaging 2022. [DOI: 10.1016/b978-0-12-822960-6.00057-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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17
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Impact of Exercise Modalities on Peripheral and Central Components of Cardiorespiratory Capacity in Heart Transplantation Patients: A Systematic Review and Meta-Analysis. Medicina (B Aires) 2021; 58:medicina58010032. [PMID: 35056339 PMCID: PMC8779927 DOI: 10.3390/medicina58010032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 12/10/2021] [Accepted: 12/24/2021] [Indexed: 11/17/2022] Open
Abstract
Background and Objectives: To analyze the effects of aerobic, resistance, and combined training on peripheral and central components related to cardiorespiratory capacity after HTx. Materials and Methods: No time restriction was applied for study inclusion. MEDLINE/PubMed; EMBASE, CENTRAL, and PEDro databases were investigated. Studies reporting heart transplanted patients older than 19 years following aerobic, resistance, and combined training according. The outcomes included: V′O2 peak, VE/V’CO2 slope, heart rate (HR peak), systolic and diastolic blood pressure (SBP and DBP peak), maximum repetition test(1RM), sit-to-stand test, and flow-mediated dilation (FMD). The studies were selected by consensus. Four hundred ninety-two studies initially met the selection criteria. Cochrane handbook was used for abstracting data and assessing data quality and validity. Independent extraction by two observers was applied. Results: Isolated aerobic training leads to a greater increase in V′O2 peak than combined training compared to the control group (p < 0.001, I2 = 0%). However, no significant differences were found in the subgroup comparison (p = 0.19, I2 = 42.1%). HR peak increased similarly after aerobic and combined training. High-intensity interval training (HIIT) was better than moderate continuous intensity to increase the V′O2 after long term in HTx. Still, there is scarce evidence of HIIT on muscle strength and FMD. No change on VE/V’CO2 slope, FMD, and SBP, DBP peak. 1RM and the sit-to-stand test increased after resistance training (p < 0.001, I2 = 70%) and CT (p < 0.001, I2 = 0%) when compared to control. Conclusions: Aerobic and combined training effectively improve VO2 peak and muscle strength, respectively. HIIT seems the better choice for cardiorespiratory capacity improvements. More studies are needed to examine the impact of training modalities on VE/V’CO2 slope and FMD.
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Myocardial innervation imaging: MIBG in clinical practice. IMAGING 2021. [DOI: 10.1556/1647.2021.00021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Abstract
123I-metaiodobenzylguanidine (MIBG) is a radiolabeled norepinephrine analog that can be used to investigate myocardial sympathetic innervation. 123I MIBG scintigraphy has been investigated with interest in many disease settings. In patients with systolic heart failure (HF), 123I MIBG scintigraphy can capture functional impairment and rarefaction of sympathetic terminals (which manifest as reduced early and late heart-to-mediastinum [H/M] ratio on planar scintigraphy), and increased sympathetic outflow (which can be visualized as high washout rate). These findings have been consistently associated with a worse outcome: most notably, a phase 3 trial found that patients with a late H/M 1.60 have a higher incidence of all-cause and cardiovascular mortality and life-threatening arrhythmias over a follow-up of less than 2 years. Despite these promising findings, 123I MIBG scintigraphy has not yet been recommended by major HF guidelines as a tool for additive risk stratification, and has then never entered the stage of widespread adoption into current clinical practice. 123I MIBG scintigraphy has been evaluated also in patients with myocardial infarction, genetic disorders characterized by an increased susceptibility to ventricular arrhythmias, and several other conditions characterized by impaired sympathetic myocardial innervation. In the present chapter we will summarize the state-of-the-art on cardiac 123I MIBG scintigraphy, the current unresolved issues, and the possible directions of future research.
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Squires RW, Bonikowske AR. Cardiac rehabilitation for heart transplant patients: Considerations for exercise training. Prog Cardiovasc Dis 2021; 70:40-48. [PMID: 34942234 DOI: 10.1016/j.pcad.2021.12.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 12/12/2021] [Indexed: 11/09/2022]
Abstract
Heart transplantation (HT) is the treatment of choice for eligible patients with end-stage chronic heart failure (HF). One-year survival world-wide is >85%. Many patients experience a reasonable functional ability post-HT, but episodes of acute rejection, as well as multiple co-morbidities such as hypertension, diabetes, chronic kidney disease and cardiac allograft vasculopathy are common. Immunosuppression with prednisone frequently results in increased body fat and skeletal muscle atrophy. Exercise capacity is below normal for most patients with a mean peak oxygen uptake (VO2) of approximately 60% of expected. HT recipients have abnormal exercise physiology findings related to surgical cardiac denervation, diastolic dysfunction, and the legacy of reduced skeletal muscle oxidative capacity and impaired vasodilatory ability resulting from pre-HT chronic HF. The heart rate response to exercise is blunted. Cardiac reinnervation resulting in partial normalization of the heart rate response to exercise occurs in approximately 40% of HT recipients months to years after HT. Supervised exercise training in cardiac rehabilitation (CR) programs is safe and is recommended by professional societies both before (pre-habilitation) and after HT. Exercise training does not require alteration in immunosuppressants. Exercise training in adults after HT improves peak VO2 and skeletal muscle strength. It has also been demonstrated to reduce the severity of cardiac allograft vasculopathy. In addition, CR exercise training is associated with reduced stroke risk, percutaneous coronary intervention, hospitalization for either acute rejection or HF, and death. There are only limited data for exercise training in the pediatric population.
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Affiliation(s)
- Ray W Squires
- Department of Cardiovascular Medicine, Division of Preventive Cardiology, Mayo Clinic, Rochester, MN, United States of America.
| | - Amanda R Bonikowske
- Department of Cardiovascular Medicine, Division of Preventive Cardiology, Mayo Clinic, Rochester, MN, United States of America
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20
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Strong evidence for parasympathetic sinoatrial reinnervation after heart transplantation. J Heart Lung Transplant 2021; 41:898-909. [PMID: 34924265 DOI: 10.1016/j.healun.2021.11.005] [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: 04/09/2021] [Revised: 10/26/2021] [Accepted: 11/09/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Heart transplantation (HTx) surgically denervates the heart. We examined indices of sinoatrial reinnervation, with emphasis on (1) the occurrence and timing of parasympathetic reinnervation, and (2) the consequences of reinnervation for heart rate (HR) responsiveness and arterial baroreceptor sensitivity. METHODS Fifty HTx recipients were prospectively followed for 36 months after surgery. Hemodynamic variables and heart rate variability were continuously recorded at supine rest, 60 degrees head-up-tilt, during the Valsalva maneuver and during handgrip isometric exercise. RESULTS Suggesting parasympathetic reinnervation: at baseline rest, root of the mean squared differences of successive RR intervals increased from median 3.9(5.9) to 7.1(5.1) ms (p < 0.001); high-frequency power increased from 4.0(12) to 5.7(18.9) ms2 (p = 0.018); and baroreceptor sensitivity increased from 0.04(0.36) to 1.3(2.4) ms/mmHg (p < 0.001). Suggesting sympathetic reinnervation: at baseline rest low-frequency power increased from 0.49(2.5) to 7.5(18.1) ms2 (p < 0.001); and HR responses to sympathetic stimulation during (1) head-up tilt increased from 1.9(4.2) to 9.1(8.2) bpm (p < 0.001), (2) Valsalva increased from 1.6(1.4) to 8.3(10.8) bpm (p < 0.001) and (3) handgrip increased from 0.3(0.6) to 1.9(5.1) bpm (p < 0.001). Signs of sympathetic reinnervation emerged within 6 months, while signs of parasympathetic reinnervation emerged by 24 months. CONCLUSIONS Root of the mean squared differences of successive RR intervals, high-frequency and low-frequency variability, HR responsiveness and arterial baroreflex sensitivity all increased after HTx, suggesting functional parasympathetic and sympathetic sinoatrial reinnervation. Accordingly, the pathological regulatory state present in heart transplant recipients, which is responsible for a host of functional and clinical abnormalities, is being partially offset over time by restored autonomic control of the heart in many heart transplant recipients.
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21
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Rickers C, Wegner P, Silberbach M, Madriago E, Gabbert DD, Kheradvar A, Voges I, Scheewe J, Attmann T, Jerosch-Herold M, Kramer HH. Myocardial Perfusion in Hypoplastic Left Heart Syndrome. Circ Cardiovasc Imaging 2021; 14:e012468. [PMID: 34610753 DOI: 10.1161/circimaging.121.012468] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The status of the systemic right ventricular coronary microcirculation in hypoplastic left heart syndrome (HLHS) is largely unknown. It is presumed that the systemic right ventricle's coronary microcirculation exhibits unique pathophysiological characteristics of HLHS in Fontan circulation. The present study sought to quantify myocardial blood flow by cardiac magnetic resonance imaging and evaluate the determinants of microvascular coronary dysfunction and myocardial ischemia in HLHS. METHODS One hundred nineteen HLHS patients (median age, 4.80 years) and 34 healthy volunteers (median age, 5.50 years) underwent follow-up cardiac magnetic resonance imaging ≈1.8 years after total cavopulmonary connection. Right ventricle volumes and function, myocardial perfusion, diffuse fibrosis, and late gadolinium enhancement were assessed in 4 anatomic HLHS subtypes. Myocardial blood flow (MBF) was quantified at rest and during adenosine-induced hyperemia. Coronary conductance was estimated from MBF at rest and catheter-based measurements of mean aortic pressure (n=99). RESULTS Hyperemic MBF in the systemic ventricle was lower in HLHS compared with controls (1.89±0.57 versus 2.70±0.84 mL/g per min; P<0.001), while MBF at rest normalized by the rate-pressure product, was similar (1.25±0.36 versus 1.19±0.33; P=0.446). Independent risk factors for a reduced hyperemic MBF were an HLHS subtype with mitral stenosis and aortic atresia (P=0.017), late gadolinium enhancement (P=0.042), right ventricular diastolic dysfunction (P=0.005), and increasing age at total cavopulmonary connection (P=0.022). The coronary conductance correlated negatively with systemic blood oxygen saturation (r, -0.29; P=0.02). The frequency of late gadolinium enhancement increased with age at total cavopulmonary connection (P=0.014). CONCLUSIONS The coronary microcirculation of the systemic ventricle in young HLHS patients shows significant differences compared with controls. These hypothesis-generating findings on HLHS-specific risk factors for microvascular dysfunction suggest a potential benefit from early relief of frank cyanosis by total cavopulmonary connection.
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Affiliation(s)
- Carsten Rickers
- University Heart Center, Adult Congenital Heart Disease Unit, University Hospital Hamburg-Eppendorf, Hamburg, Germany (C.R.)
| | - Philip Wegner
- Department of Congenital Heart Disease and Pediatric Cardiology (P.W., D.D.G., I.V., H.-H.K.) University Hospital Schleswig-Holstein, Kiel, Germany
| | - Michael Silberbach
- Department of Pediatric Cardiology, Doernbecher Children's Hospital, Oregon Health and Science University, Portland (M.S., E.M.)
| | - Erin Madriago
- Department of Pediatric Cardiology, Doernbecher Children's Hospital, Oregon Health and Science University, Portland (M.S., E.M.)
| | - Dominik Daniel Gabbert
- Department of Congenital Heart Disease and Pediatric Cardiology (P.W., D.D.G., I.V., H.-H.K.) University Hospital Schleswig-Holstein, Kiel, Germany
| | - Arash Kheradvar
- Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California Irvine (A.K.)
| | - Inga Voges
- Department of Congenital Heart Disease and Pediatric Cardiology (P.W., D.D.G., I.V., H.-H.K.) University Hospital Schleswig-Holstein, Kiel, Germany
| | - Jens Scheewe
- Department of Cardiovascular Surgery (J.S., T.A.), University Hospital Schleswig-Holstein, Kiel, Germany
| | - Tim Attmann
- Department of Cardiovascular Surgery (J.S., T.A.), University Hospital Schleswig-Holstein, Kiel, Germany
| | - Michael Jerosch-Herold
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (M.J.-H.)
| | - Hans-Heiner Kramer
- Department of Congenital Heart Disease and Pediatric Cardiology (P.W., D.D.G., I.V., H.-H.K.) University Hospital Schleswig-Holstein, Kiel, Germany
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22
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Abstract
BACKGROUND Heart transplantation (HTx) surgically transects all connections to the heart, including the autonomic nerves. We prospectively examined signs, timing and consequences of early sympathetic and parasympathetic sinoatrial reinnervation, as well as explored indirect evidence of afferent cardiopulmonary reinnervation. METHODS Fifty HTx recipients were assessed at 2.5, 6, and 12 mo after HTx. For comparison, 50 healthy controls were examined once. Continuous, noninvasive recordings of hemodynamic variables and heart rate variability indices were performed at supine rest, 0.2 Hz controlled breathing, 60° head-up-tilt, during the Valsalva maneuver and during handgrip isometric exercise. RESULTS In HTx recipients, supine low-frequency heart rate variability gradually increased; supine high-frequency variability did not change; heart rate variability indices during controlled breathing remained unaltered; heart rate responses during tilt and isometric exercise gradually increased; the tachycardia response during Valsalva maneuver increased, while the bradycardia response remained unchanged; and indices of baroreflex sensitivity improved. Responses remained low compared to healthy controls. A negative correlation between indices of preload and heart rate response during head-up tilt emerged at 12 mo. CONCLUSIONS Results suggest that sympathetic reinnervation of the sinoatrial node starts within 6 mo after HTx and strengthens during the first year. No evidence of early parasympathetic reinnervation was found. Indirect signs of afferent reinnervation of cardiopulmonary low-pressure baroreceptors emerged at 12 mo. Better sympathetic sinoatrial control improved heart rate responsiveness to orthostatic challenge and isometric exercise, as well as heart rate buffering of blood pressure fluctuations.
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Bioprinting on 3D Printed Titanium Scaffolds for Periodontal Ligament Regeneration. Cells 2021; 10:cells10061337. [PMID: 34071316 PMCID: PMC8229613 DOI: 10.3390/cells10061337] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/21/2021] [Accepted: 05/21/2021] [Indexed: 01/09/2023] Open
Abstract
The three-dimensional (3D) cell-printing technique has been identified as a new biofabrication platform because of its ability to locate living cells in pre-defined spatial locations with scaffolds and various growth factors. Osseointegrated dental implants have been regarded as very reliable and have long-term reliability. However, host defense mechanisms against infections and micro-movements have been known to be impaired around a dental implant because of the lack of a periodontal ligament. In this study, we fabricated a hybrid artificial organ with a periodontal ligament on the surface of titanium using 3D printing technology. CEMP-1, a known cementogenic factor, was enhanced in vitro. In animal experiments, when the hybrid artificial organ was transplanted to the calvarial defect model, it was observed that the amount of connective tissue increased. 3D-printed hybrid artificial organs can be used with dental implants, establishing physiological tooth functions, including the ability to react to mechanical stimuli and the ability to resist infections.
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Schumacher O, Trachsel LD, Herzig D, Mohacsi P, Sigurdardottir V, Wilhelm M, Eser P. Heart rate kinetics during standard cardiopulmonary exercise testing in heart transplant recipients: a longitudinal study. ESC Heart Fail 2021; 8:1096-1105. [PMID: 33417294 PMCID: PMC8006603 DOI: 10.1002/ehf2.13102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 10/09/2020] [Accepted: 10/22/2020] [Indexed: 12/23/2022] Open
Abstract
AIMS Heart transplantation (HTx) results in complete autonomic denervation of the donor heart, causing resting tachycardia and abnormal heart rate (HR) responses to exercise. We determined the time course of suggestive cardiac reinnervation post HTx and investigated its clinical significance. METHODS AND RESULTS Heart rate kinetics during standard cardiopulmonary exercise testing at 2.5-5 years after HTx was assessed in 58 patients. According to their HR increase 30 s after exercise onset, HTx recipients were classified as denervated (slow responders: <5 beats per minute [b.p.m.]) or potentially reinnervated (fast responders: ≥5 b.p.m.). Additionally, in 30 patients, longitudinal changes of maximal oxygen consumption and HR kinetics were assessed during the first 15 post-operative years. At 2.5-5 years post HTx, 38% of our study population was potentially reinnervated. Fast responders were significantly younger (41 ± 15 years) than slow responders (53 ± 13 years, P = 0.003) but did not differ with regard to donor age, immunosuppressive regime, cardiovascular risk factors, endomyocardial biopsy, or vasculopathy parameters. While HR reserve (56 ± 20 vs. 39 ± 15 b.p.m., P = 0.002) and HR recovery after 60 s (15 ± 11 vs. 5 ± 6 b.p.m., P < 0.001) were greater in fast responders, resting HR, peak HR of predicted, and peak oxygen consumption of predicted were comparable. CONCLUSIONS Signs of reinnervation occurred mainly in younger patients. Maximal oxygen consumption was independent of HR kinetics.
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Affiliation(s)
- Oliver Schumacher
- Department of Cardiology, Inselspital, Bern University HospitalUniversity of BernBernSwitzerland
- Exercise Physiology Lab, Institute of Human Movement Sciences and SportETH ZurichZurichSwitzerland
| | - Lukas D. Trachsel
- Department of Cardiology, Inselspital, Bern University HospitalUniversity of BernBernSwitzerland
| | - David Herzig
- Department of Cardiology, Inselspital, Bern University HospitalUniversity of BernBernSwitzerland
| | - Paul Mohacsi
- Department of Cardiology, Inselspital, Bern University HospitalUniversity of BernBernSwitzerland
| | - Vilborg Sigurdardottir
- Department of Cardiology, Inselspital, Bern University HospitalUniversity of BernBernSwitzerland
| | - Matthias Wilhelm
- Department of Cardiology, Inselspital, Bern University HospitalUniversity of BernBernSwitzerland
| | - Prisca Eser
- Department of Cardiology, Inselspital, Bern University HospitalUniversity of BernBernSwitzerland
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25
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Wink J, Steendijk P, Tsonaka R, de Wilde RBP, Friedericy HJ, Braun J, Veering BT, Aarts LPHJ, Wouters PF. Biventricular function in exercise during autonomic (thoracic epidural) block. Eur J Appl Physiol 2021; 121:1405-1418. [PMID: 33615388 PMCID: PMC8064994 DOI: 10.1007/s00421-021-04631-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 02/05/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Blockade of cardiac sympathetic fibers by thoracic epidural anesthesia (TEA) was previously shown to reduce right and left ventricular systolic function and effective pulmonary arterial elastance. At conditions of constant paced heart rate, cardiac output and systemic hemodynamics were unchanged. In this study, we further investigated the effect of cardiac sympathicolysis during physical stress and increased oxygen demand. METHODS In a cross-over design, 12 patients scheduled to undergo thoracic surgery performed dynamic ergometric exercise tests with and without TEA. Hemodynamics were monitored and biventricular function was measured by transthoracic two-dimensional and M-mode echocardiography, pulsed wave Doppler and tissue Doppler imaging. RESULTS TEA attenuated systolic RV function (TV S': - 21%, P < 0.001) and LV function (MV S': - 14%, P = 0.025), but biventricular diastolic function was not affected. HR (- 11%, P < 0.001), SVI (- 15%, P = 0.006), CI (- 21%, P < 0.001) and MAP (- 12%, P < 0.001) were decreased during TEA, but SVR was not affected. Exercise resulted in significant augmentation of systolic and diastolic biventricular function. During exercise HR, SVI, CI and MAP increased (respectively, + 86%, + 19%, + 124% and + 17%, all P < 0.001), whereas SVR decreased (- 49%, P < 0.001). No significant interactions between exercise and TEA were found, except for RPP (P = 0.024) and MV E DT (P = 0.035). CONCLUSION Cardiac sympathetic blockade by TEA reduced LV and RV systolic function but did not significantly blunt exercise-induced increases in LV and RV function. These data indicate that additional mechanisms besides those controlled by the cardiac sympathetic nervous system are involved in the regulation of cardiac function during dynamic exercise. Trial registration Clinical trial registration: Nederlands Trial Register, NTR 4880 http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=4880 .
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Affiliation(s)
- Jeroen Wink
- Department of Anesthesiology, Leiden University Medical Center, P.O. Box 9600, 2300 RC, Leiden, The Netherlands.
| | - Paul Steendijk
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Roula Tsonaka
- Department of Biomedical Data Sciences, Medical Statistics Section, Leiden University Medical Center, Leiden, The Netherlands
| | - Rob B P de Wilde
- Department of Intensive Care, Leiden University Medical Center, Leiden, The Netherlands
| | - Hans J Friedericy
- Department of Anesthesiology, Leiden University Medical Center, P.O. Box 9600, 2300 RC, Leiden, The Netherlands
| | - Jerry Braun
- Department of Cardio-Thoracic Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - Bernadette Th Veering
- Department of Anesthesiology, Leiden University Medical Center, P.O. Box 9600, 2300 RC, Leiden, The Netherlands
| | - Leon P H J Aarts
- Department of Anesthesiology, Leiden University Medical Center, P.O. Box 9600, 2300 RC, Leiden, The Netherlands
| | - Patrick F Wouters
- Department of Anesthesia, University Hospitals Ghent, Ghent, Belgium
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26
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Kitagaki K, Ono R, Shimada Y, Yanagi H, Konishi H, Nakanishi M. Cardiac rehabilitation program improves exercise capacity in heart transplantation recipients regardless of marginal donor factors. Heart Vessels 2020; 36:659-666. [PMID: 33245491 DOI: 10.1007/s00380-020-01735-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 11/13/2020] [Indexed: 01/31/2023]
Abstract
Cardiac rehabilitation (CR) is recommended to improve exercise capacity after heart transplantation (HTx); however, the effects of marginal donor factors are unclear. Forty-one recipients participated in a 3-month CR program early after HTx (mean age 39 ± 14 years; 88% male). Patients were divided into marginal (≥ 2 marginal donor factors; n = 24) and control groups (< 2 marginal donor factors; n = 17). We examined donor and recipient factors related to change in peak oxygen uptake (peak VO2) during the CR program using multiple linear regression analysis. Baseline characteristics were similar between groups, although the mean age was higher in the marginal group (43 ± 13 vs. 34 ± 14 years, p = 0.043). Peak VO2 and knee extensor muscular strength (KEMS) improved significantly in both groups (p < 0.05), but there were no observed inter-group differences. Multiple analysis revealed change in KEMS (β = 0.52, 95% CI = 0.023-1.01) as an independent predictor of change in peak VO2 after adjustment for recipients' age, sex, and CR attendance frequency (adjusted R2 = 0.25, p = 0.0084), whereas marginal donor factors were not a predictor (p = 0.76). The CR program improved exercise capacity in HTx recipients regardless of marginal donor factors, suggesting that recipients of marginal donor hearts should be referred to CR programs.
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Affiliation(s)
- Kazufumi Kitagaki
- Department of Cardiovascular Rehabilitation, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 564-8565, Japan.,Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Rei Ono
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Yukihiro Shimada
- Department of Cardiovascular Rehabilitation, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 564-8565, Japan
| | - Hidetoshi Yanagi
- Department of Cardiovascular Rehabilitation, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 564-8565, Japan
| | - Harumi Konishi
- Department of Nursing, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Michio Nakanishi
- Department of Cardiovascular Rehabilitation, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 564-8565, Japan. .,Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan.
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27
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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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28
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DeFilippis EM, Rubin G, Farr MA, Biviano A, Wan EY, Takeda K, Garan H, Topkara VK, Yarmohammadi H. Cardiac Implantable Electronic Devices Following Heart Transplantation. JACC Clin Electrophysiol 2020; 6:1028-1042. [PMID: 32819520 DOI: 10.1016/j.jacep.2020.06.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/12/2020] [Accepted: 06/27/2020] [Indexed: 11/29/2022]
Abstract
Permanent pacemaker (PPM) implantation is required in a subset of patients (∼10%) for sinus node dysfunction or atrioventricular block both early and late after heart transplantation. The incidence of PPM implantation has decreased to <5% with the advent of bicaval anastamosis transplantation surgery. Pacing dependence upon follow-up has been variably reported. An even smaller percentage of transplantation recipients (1.5% to 3.4%) undergo implantable cardioverter-defibrillator (ICD) placement. Rigorous data are lacking for the use of ICDs in the transplantation population and is largely derived from cohort studies and case series. Sudden cardiac death occurs in approximately 10% of transplantation recipients, but multiple nonarrhythmic factors are believed to be responsible, including acute rejection, late graft failure with electromechanical dissociation, and ischemia due to cardiac allograft vasculopathy. This review provides a comprehensive analysis of the existing data regarding the role for PPMs and ICDs in this population, including leadless PPMs and subcutaneous ICDs, special considerations, and future directions.
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Affiliation(s)
- Ersilia M DeFilippis
- Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA
| | - Geoffrey Rubin
- Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA
| | - Maryjane A Farr
- Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA
| | - Angelo Biviano
- Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA
| | - Elaine Y Wan
- Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA
| | - Koji Takeda
- Division of Cardiothoracic Surgery, Department of Surgery, Columbia University Irving Medical Center, New York, New York, USA
| | - Hasan Garan
- Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA
| | - Veli K Topkara
- Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA
| | - Hirad Yarmohammadi
- Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA.
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Rivinius R, Helmschrott M, Rahm AK, Darche FF, Thomas D, Bruckner T, Doesch AO, Katus HA, Ehlermann P. Five-year results of heart rate control with ivabradine or metoprolol succinate in patients after heart transplantation. Clin Res Cardiol 2020; 111:141-153. [PMID: 32572551 PMCID: PMC8816306 DOI: 10.1007/s00392-020-01692-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 06/17/2020] [Indexed: 11/28/2022]
Abstract
Background Cardiac graft denervation causes inadequate sinus tachycardia in patients after heart transplantation (HTX) which is associated with reduced survival. This study investigated the 5-year results of heart rate control with ivabradine or metoprolol succinate in patients after HTX. Methods This registry study analyzed 104 patients receiving either ivabradine (n = 50) or metoprolol succinate (n = 54) within 5 years after HTX. Analysis included patient characteristics, medication, echocardiographic features, cardiac catheterization data, cardiac biomarkers, heart rates, and post-transplant survival including causes of death. Results Demographics and post-transplant medication revealed no significant differences except for ivabradine and metoprolol succinate use. At 5-year follow-up, patients with ivabradine had a significantly lower heart rate (73.3 bpm) compared to baseline (88.6 bpm; P < 0.01) and to metoprolol succinate (80.4 bpm; P < 0.01), a reduced left ventricular mass (154.8 g) compared to baseline (179.5 g; P < 0.01) and to metoprolol succinate (177.3 g; P < 0.01), a lower left ventricular end-diastolic pressure (LVEDP; 12.0 mmHg) compared to baseline (15.5 mmHg; P < 0.01) and to metoprolol succinate (17.1 mmHg; P < 0.01), and a reduced NT-proBNP level (525.4 pg/ml) compared to baseline (3826.3 pg/ml; P < 0.01) and to metoprolol succinate (1038.9 pg/ml; P < 0.01). Five-year post-transplant survival was significantly better in patients with ivabradine (90.0%) versus metoprolol succinate (68.5%; P < 0.01). Conclusion Patients receiving ivabradine showed a superior heart rate reduction and a better left ventricular diastolic function along with an improved 5-year survival after HTX.
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Affiliation(s)
- Rasmus Rivinius
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany. .,Heidelberg Center for Heart Rhythm Disorders (HCR), Heidelberg University Hospital, Heidelberg, Germany. .,German Center for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, Heidelberg, Germany.
| | - Matthias Helmschrott
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
| | - Ann-Kathrin Rahm
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany.,Heidelberg Center for Heart Rhythm Disorders (HCR), Heidelberg University Hospital, Heidelberg, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, Heidelberg, Germany
| | - Fabrice F Darche
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany.,Heidelberg Center for Heart Rhythm Disorders (HCR), Heidelberg University Hospital, Heidelberg, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, Heidelberg, Germany
| | - Dierk Thomas
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany.,Heidelberg Center for Heart Rhythm Disorders (HCR), Heidelberg University Hospital, Heidelberg, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, Heidelberg, Germany
| | - Tom Bruckner
- Institute for Medical Biometry and Informatics, University of Heidelberg, Heidelberg, Germany
| | - Andreas O Doesch
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany.,Department of Pneumology and Oncology, Asklepios Hospital, Bad Salzungen, Germany
| | - Hugo A Katus
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany.,Heidelberg Center for Heart Rhythm Disorders (HCR), Heidelberg University Hospital, Heidelberg, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, Heidelberg, Germany
| | - Philipp Ehlermann
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, Heidelberg, Germany
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Das S, Gordián-Vélez WJ, Ledebur HC, Mourkioti F, Rompolas P, Chen HI, Serruya MD, Cullen DK. Innervation: the missing link for biofabricated tissues and organs. NPJ Regen Med 2020; 5:11. [PMID: 32550009 PMCID: PMC7275031 DOI: 10.1038/s41536-020-0096-1] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 04/29/2020] [Indexed: 12/15/2022] Open
Abstract
Innervation plays a pivotal role as a driver of tissue and organ development as well as a means for their functional control and modulation. Therefore, innervation should be carefully considered throughout the process of biofabrication of engineered tissues and organs. Unfortunately, innervation has generally been overlooked in most non-neural tissue engineering applications, in part due to the intrinsic complexity of building organs containing heterogeneous native cell types and structures. To achieve proper innervation of engineered tissues and organs, specific host axon populations typically need to be precisely driven to appropriate location(s) within the construct, often over long distances. As such, neural tissue engineering and/or axon guidance strategies should be a necessary adjunct to most organogenesis endeavors across multiple tissue and organ systems. To address this challenge, our team is actively building axon-based "living scaffolds" that may physically wire in during organ development in bioreactors and/or serve as a substrate to effectively drive targeted long-distance growth and integration of host axons after implantation. This article reviews the neuroanatomy and the role of innervation in the functional regulation of cardiac, skeletal, and smooth muscle tissue and highlights potential strategies to promote innervation of biofabricated engineered muscles, as well as the use of "living scaffolds" in this endeavor for both in vitro and in vivo applications. We assert that innervation should be included as a necessary component for tissue and organ biofabrication, and that strategies to orchestrate host axonal integration are advantageous to ensure proper function, tolerance, assimilation, and bio-regulation with the recipient post-implant.
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Affiliation(s)
- Suradip Das
- Center for Brain Injury & Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA USA
- Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA USA
| | - Wisberty J. Gordián-Vélez
- Center for Brain Injury & Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA USA
- Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA USA
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA USA
| | | | - Foteini Mourkioti
- Department of Orthopedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA USA
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA USA
| | - Panteleimon Rompolas
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA USA
| | - H. Isaac Chen
- Center for Brain Injury & Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA USA
- Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA USA
| | - Mijail D. Serruya
- Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA USA
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA USA
| | - D. Kacy Cullen
- Center for Brain Injury & Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA USA
- Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA USA
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA USA
- Axonova Medical, LLC., Philadelphia, PA USA
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31
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Nuclear Imaging of the Cardiac Sympathetic Nervous System. JACC Cardiovasc Imaging 2020; 13:1036-1054. [DOI: 10.1016/j.jcmg.2019.01.042] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 01/20/2019] [Accepted: 01/22/2019] [Indexed: 01/08/2023]
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Wan N, Travin MI. Cardiac Imaging With 123I-meta-iodobenzylguanidine and Analogous PET Tracers: Current Status and Future Perspectives. Semin Nucl Med 2020; 50:331-348. [PMID: 32540030 DOI: 10.1053/j.semnuclmed.2020.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Autonomic innervation plays an important role in proper functioning of the cardiovascular system. Altered cardiac sympathetic function is present in a variety of diseases, and can be assessed with radionuclide imaging using sympathetic neurotransmitter analogues. The most studied adrenergic radiotracer is cardiac 123I-meta-iodobenzylguanidine (123I-mIBG). Cardiac 123I-mIBG uptake can be evaluated using both planar and tomographic imaging, thereby providing insight into global and regional sympathetic innervation. Standardly assessed imaging parameters are the heart-to-mediastinum ratio and washout rate, customarily derived from planar images. Focal tracer deficits on tomographic imaging also show prognostic utility, with some data suggesting that the best approach to tomographic image interpretation may differ from conventional methods. Cardiac 123I-mIBG image findings strongly correlate with the severity and prognosis of many cardiovascular diseases, especially heart failure and ventricular arrhythmias. Cardiac 123I-mIBG imaging in heart failure is FDA approved for prognostic purposes. With the robustly demonstrated ability to predict occurrence of potentially fatal arrhythmias, cardiac 123I-mIBG imaging shows promise for better selecting patients who will benefit from an implantable cardioverter defibrillator, but clinical use has been hampered by lack of the randomized trial needed for incorporation into societal guidelines. In patients with ischemic heart disease, cardiac 123I-mIBG imaging aids in assessing the extent of damage and in identifying arrhythmogenic regions. There have also been studies using cardiac 123I-mIBG for other conditions, including patients following heart transplantation, diabetic related cardiac abnormalities and chemotherapy induced cardiotoxicity. Positron emission tomographic adrenergic radiotracers, that improve image quality, have been investigated, especially 11C-meta-hydroxyephedrine, and most recently 18F-fluorbenguan. Cadmium-zinc-telluride cameras also improve image quality. With better spatial resolution and quantification, PET tracers and advanced camera technologies promise to expand the clinical utility of cardiac sympathetic imaging.
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Affiliation(s)
- Ningxin Wan
- Division of Nuclear Medicine, Department of Radiology, and Division of Cardiology, Department of Medicine, Montefiore Medical Center and The Albert Einstein College of Medicine, Bronx, NY
| | - Mark I Travin
- Division of Nuclear Medicine, Department of Radiology, and Division of Cardiology, Department of Medicine, Montefiore Medical Center and The Albert Einstein College of Medicine, Bronx, NY.
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Mastrocola LE, Amorim BJ, Vitola JV, Brandão SCS, Grossman GB, Lima RDSL, Lopes RW, Chalela WA, Carreira LCTF, Araújo JRND, Mesquita CT, Meneghetti JC. Update of the Brazilian Guideline on Nuclear Cardiology - 2020. Arq Bras Cardiol 2020; 114:325-429. [PMID: 32215507 PMCID: PMC7077582 DOI: 10.36660/abc.20200087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
| | - Barbara Juarez Amorim
- Universidade Estadual de Campinas (Unicamp), Campinas, SP - Brazil
- Sociedade Brasileira de Medicina Nuclear (SBMN), São Paulo, SP - Brazil
| | | | | | - Gabriel Blacher Grossman
- Hospital Moinhos de Vento, Porto Alegre, RS - Brazil
- Clínica Cardionuclear, Porto Alegre, RS - Brazil
| | - Ronaldo de Souza Leão Lima
- Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ - Brazil
- Fonte Imagem Medicina Diagnóstica, Rio de Janeiro, RJ - Brazil
- Clínica de Diagnóstico por Imagem (CDPI), Grupo DASA, Rio de Janeiro, RJ - Brazil
| | | | - William Azem Chalela
- Instituto do Coração (Incor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP - Brazil
| | | | | | | | - José Claudio Meneghetti
- Instituto do Coração (Incor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP - Brazil
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Moura-Tonello SCGD, Carvalho VO, Godoy MFD, Porta A, Leal ÂMDO, Bocchi EA, Catai AM. Evaluation of Cardiac Autonomic Modulation Using Symbolic Dynamics After Cardiac Transplantation. Braz J Cardiovasc Surg 2019; 34:572-580. [PMID: 31719008 PMCID: PMC6852456 DOI: 10.21470/1678-9741-2019-0236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Objective To characterize the behavior of cardiac autonomic modulation in individuals
with different times after orthotopic heart transplantation (HTx) using
symbolic dynamics analysis. Methods Sixty patients were evaluated after HTx. We recorded their instantaneous R-R
intervals (RRi) by cardiac monitor Polar® RS800CX™ (Polar
Electro Oy, Kempele, Finland) for 10 minutes. The same sequence of RRi with
256 consecutive beats was used to perform spectral analysis and symbolic
dynamics analysis. We used hierarchical clustering to form groups. One-way
analysis of variance (ANOVA) (with Holm-Sidak method) or one-way
Kruskal-Wallis test (with Dunn´s post-hoc test) was used to analyze the
difference between groups. Linear correlation analysis between variables was
performed using Pearson’s or Spearman’s tests. P-value <
0.05 was considered statistically significant. Results The 0V% index increased, the 2UV% index and the normalized complexity index
decreased with an increase of HTx postoperative time. There were a negative
correlation between complexity indexes and 0V% and a positive correlation
between complexity indexes and 2UV%. Conclusion Symbolic dynamics indexes were able to show a specific cardiac autonomic
modulation pattern for HTx recipients with different postoperative
times.
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Affiliation(s)
- Sílvia Cristina Garcia de Moura-Tonello
- Federal University of São Carlos Cardiovascular Physiotherapy Laboratory Physiotherapy Department São Carlos SP Brazil Physiotherapy Department, Cardiovascular Physiotherapy Laboratory (LFCV), Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| | - Vitor Oliveira Carvalho
- Federal University of Sergipe Physiotherapy Department São Cristóvão SE Brazil Physiotherapy Department, Federal University of Sergipe (UFS), São Cristóvão, SE, Brazil
| | - Moacir Fernandes de Godoy
- Medical School of São José do Rio Preto Cardiology and Cardiovascular Surgery Department São José do Rio Preto SP Brazil Cardiology and Cardiovascular Surgery Department, Medical School of São José do Rio Preto (FAMERP), São José do Rio Preto, SP, Brazil.,Medical School of São José do Rio Preto Transdisciplinary Nucleus for the Study of Chaos and Complexity São José do Rio Preto SP Brazil Transdisciplinary Nucleus for the Study of Chaos and Complexity (NUTEC), Medical School of São José do Rio Preto (FAMERP), São José do Rio Preto, SP, Brazil
| | - Alberto Porta
- University of Milan Department of Biomedical Sciences for Health Milan Italy Department of Biomedical Sciences for Health, University of Milan, Milan, Italy.,IRCCS Policlinico San Donato Vascular Anesthesia and Intensive Care Department of Cardiothoracic Milan Italy Department of Cardiothoracic, Vascular Anesthesia and Intensive Care, IRCCS Policlinico San Donato, Milan, Italy
| | - Ângela Merice de Oliveira Leal
- Federal University of São Carlos Department of Medicine São Paulo Brazil Department of Medicine, Federal University of São Carlos (UFSCar), São Paulo, Brazil
| | - Edimar Alcides Bocchi
- Universidade de São Paulo Faculdade de Medicina Hospital das Clínicas São Paulo SP Brazil Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (InCor HC-FMUSP), São Paulo, SP, Brazil
| | - Aparecida Maria Catai
- Federal University of São Carlos Cardiovascular Physiotherapy Laboratory Physiotherapy Department São Carlos SP Brazil Physiotherapy Department, Cardiovascular Physiotherapy Laboratory (LFCV), Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
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Grupper A, Gewirtz H, Kushwaha S. Reinnervation post-heart transplantation. Eur Heart J 2019; 39:1799-1806. [PMID: 28087606 DOI: 10.1093/eurheartj/ehw604] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 11/25/2016] [Indexed: 12/11/2022] Open
Abstract
Heart transplantation results in complete denervation of the donor heart with loss of afferent and efferent nerve connections. The majority of patients remain completely denervated during the first 6-12 months following transplantation. Evidence of reinnervation is usually found during the second year after transplantation and involve the myocardial muscle, sinoatrial node, and coronary vessels, but remains incomplete and regionally limited many years post-transplant. Restoration of cardiac innervation can improve exercise capacity as well as blood flow regulation in the coronary arteries, and hence improve quality of life. As yet, there is no evidence that the reinnervation process is associated with the occurrence of allograft-related events or survival.
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Affiliation(s)
- Avishay Grupper
- Division of Cardiovascular Diseases, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | | | - Sudhir Kushwaha
- Division of Cardiovascular Diseases, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
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36
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Liu L, Li X, Dong L, Li Y, Yu H, Chen Q. A novel strategy for the preparation of the injectable PET/CT radiopharmaceutical (-)-[11C]-(1R,2S)-meta-hydroxyephedrine ((-)-[11C]HED. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06534-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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37
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Correlates and Outcomes of Low Physical Activity Posttransplant: A Systematic Review and Meta-Analysis. Transplantation 2019; 103:679-688. [DOI: 10.1097/tp.0000000000002543] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Beitzke D, Wielandner A, Wollenweber T, Vraka C, Pichler V, Uyanik-Uenal K, Zuckermann A, Greiser A, Hacker M, Loewe C. Assessment of sympathetic reinnervation after cardiac transplantation using hybrid cardiac PET/MRI: A pilot study. J Magn Reson Imaging 2019; 50:1326-1335. [PMID: 30892777 PMCID: PMC6766915 DOI: 10.1002/jmri.26722] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 03/01/2019] [Accepted: 03/02/2019] [Indexed: 12/12/2022] Open
Abstract
Background Sympathetic reinnervation after heart transplantation (HTX) is a known phenomenon, which has an impact on patient heart rate variability and exercise capacity. The impact of reinnervation on myocardial structure has not been evaluated yet. Propose To evaluate the feasibility of simultaneous imaging of cardiac reinnervation and cardiac structure using a hybrid PET/MRI system. Study type Prospective / pilot study. Subjects Ten patients, 4–21 years after cardiac transplantation. Field Strength/Sequence 3 T hybrid PET/MRI system. Cine SSFP, T1 mapping (modified Look–Locker inversion recovery sequence) pre/postcontrast as well as dynamic [11C]meta‐hydroxyephedrine ([11C]mHED) PET. Assessment All MRI and PET parameters were evaluated by experienced readers using dedicated postprocessing software packages for cardiac MRI and PET. For all parameters a 16‐segment model for the left ventricle was applied. Statistical Tests Mann–Whitney U‐test; Spearman correlations. Results Thirty‐six of 160 myocardial segments showed evidence of reinnervation by PET. On a segment‐based analysis, mean native T1 relaxation times were nonsignificantly altered in segments with evidence of reinnervation (1305 ± 151 msec vs. 1270 ± 112 msec; P = 0.1), whereas mean extracellular volume (ECV) was significantly higher in segments with evidence of reinnervation (35.8 ± 11% vs. 30.9 ± 7%; P = 0.019). There were no significant differences in wall motion (WM) and wall thickening (WT) between segments with or without reinnervation (mean WM: 7.6 ± 4 mm vs. group B: 9.3 ± 7 mm [P = 0.13]; WT: 79 ± 63% vs. 94 ± 74% [P = 0.27]) under resting conditions. Data Conclusion The assessment of cardiac reinnervation using a hybrid PET/MRI system is feasible. Segments with evidence of reinnervation by PET showed nonsignificantly higher T1 relaxation times and a significantly higher ECV, suggesting a higher percentage of diffuse fibrosis in these segments, without impairment of rest WM and WT. Level of Evidence: 3 Technical Efficacy: Stage 3 J. Magn. Reson. Imaging 2019;50:1326–1335.
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Affiliation(s)
- Dietrich Beitzke
- Department of Biomedical Imaging and Image-Guided Therapy, Division of Cardiovascular and Interventional Radiology, Medical University of Vienna, Vienna, Austria
| | - Alice Wielandner
- Department of Biomedical Imaging and Image-Guided Therapy, Division of Cardiovascular and Interventional Radiology, Medical University of Vienna, Vienna, Austria
| | - Tim Wollenweber
- Department of Biomedical Imaging and Image-Guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Vienna, Austria
| | - Chrysoula Vraka
- Department of Biomedical Imaging and Image-Guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Vienna, Austria
| | - Verena Pichler
- Department of Biomedical Imaging and Image-Guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Vienna, Austria
| | - Keziban Uyanik-Uenal
- Department of Surgery, Division of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
| | - Andreas Zuckermann
- Department of Surgery, Division of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
| | | | - Marcus Hacker
- Department of Biomedical Imaging and Image-Guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Vienna, Austria
| | - Christian Loewe
- Department of Biomedical Imaging and Image-Guided Therapy, Division of Cardiovascular and Interventional Radiology, Medical University of Vienna, Vienna, Austria
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Boutagy NE, Feher A, Alkhalil I, Umoh N, Sinusas AJ. Molecular Imaging of the Heart. Compr Physiol 2019; 9:477-533. [PMID: 30873600 DOI: 10.1002/cphy.c180007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Multimodality cardiovascular imaging is routinely used to assess cardiac function, structure, and physiological parameters to facilitate the diagnosis, characterization, and phenotyping of numerous cardiovascular diseases (CVD), as well as allows for risk stratification and guidance in medical therapy decision-making. Although useful, these imaging strategies are unable to assess the underlying cellular and molecular processes that modulate pathophysiological changes. Over the last decade, there have been great advancements in imaging instrumentation and technology that have been paralleled by breakthroughs in probe development and image analysis. These advancements have been merged with discoveries in cellular/molecular cardiovascular biology to burgeon the field of cardiovascular molecular imaging. Cardiovascular molecular imaging aims to noninvasively detect and characterize underlying disease processes to facilitate early diagnosis, improve prognostication, and guide targeted therapy across the continuum of CVD. The most-widely used approaches for preclinical and clinical molecular imaging include radiotracers that allow for high-sensitivity in vivo detection and quantification of molecular processes with single photon emission computed tomography and positron emission tomography. This review will describe multimodality molecular imaging instrumentation along with established and novel molecular imaging targets and probes. We will highlight how molecular imaging has provided valuable insights in determining the underlying fundamental biology of a wide variety of CVDs, including: myocardial infarction, cardiac arrhythmias, and nonischemic and ischemic heart failure with reduced and preserved ejection fraction. In addition, the potential of molecular imaging to assist in the characterization and risk stratification of systemic diseases, such as amyloidosis and sarcoidosis will be discussed. © 2019 American Physiological Society. Compr Physiol 9:477-533, 2019.
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Affiliation(s)
- Nabil E Boutagy
- Department of Medicine, Yale Translational Research Imaging Center, Yale University School of Medicine, Section of Cardiovascular Medicine, New Haven, Connecticut, USA
| | - Attila Feher
- Department of Medicine, Yale Translational Research Imaging Center, Yale University School of Medicine, Section of Cardiovascular Medicine, New Haven, Connecticut, USA
| | - Imran Alkhalil
- Department of Medicine, Yale Translational Research Imaging Center, Yale University School of Medicine, Section of Cardiovascular Medicine, New Haven, Connecticut, USA
| | - Nsini Umoh
- Department of Medicine, Yale Translational Research Imaging Center, Yale University School of Medicine, Section of Cardiovascular Medicine, New Haven, Connecticut, USA
| | - Albert J Sinusas
- Department of Medicine, Yale Translational Research Imaging Center, Yale University School of Medicine, Section of Cardiovascular Medicine, New Haven, Connecticut, USA.,Yale University School of Medicine, Department of Radiology and Biomedical Imaging, New Haven, Connecticut, USA
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Effects of Thoracic Epidural Anesthesia on Neuronal Cardiac Regulation and Cardiac Function. Anesthesiology 2019; 130:472-491. [DOI: 10.1097/aln.0000000000002558] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Abstract
Cardiac sympathetic blockade with high-thoracic epidural anesthesia is considered beneficial in patients undergoing major surgery because it offers protection in ischemic heart disease. Major outcome studies have failed to confirm such a benefit, however. In fact, there is growing concern about potential harm associated with the use of thoracic epidural anesthesia in high-risk patients, although underlying mechanisms have not been identified. Since the latest review on this subject, a number of clinical and experimental studies have provided new information on the complex interaction between thoracic epidural anesthesia–induced sympatholysis and cardiovascular control mechanisms. Perhaps these new insights may help identify conditions in which benefits of thoracic epidural anesthesia may not outweigh potential risks. For example, cardiac sympathectomy with high-thoracic epidural anesthesia decreases right ventricular function and attenuates its capacity to cope with increased right ventricular afterload. Although the clinical significance of this pathophysiologic interaction is unknown at present, it identifies a subgroup of patients with established or pending pulmonary hypertension for whom outcome studies are needed. Other new areas of interest include the impact of thoracic epidural anesthesia–induced sympatholysis on cardiovascular control in conditions associated with increased sympathetic tone, surgical stress, and hemodynamic disruption. It was considered appropriate to collect and analyze all recent scientific information on this subject to provide a comprehensive update on the cardiovascular effects of high-thoracic epidural anesthesia and cardiac sympathectomy in healthy and diseased patients.
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41
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Injury and stress responses of adult neural crest-derived cells. Dev Biol 2018; 444 Suppl 1:S356-S365. [DOI: 10.1016/j.ydbio.2018.05.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/15/2018] [Accepted: 05/15/2018] [Indexed: 12/21/2022]
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Affiliation(s)
- Basak Icli
- From the Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Mark W Feinberg
- From the Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
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43
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Tucker WJ, Beaudry RI, Samuel TJ, Nelson MD, Halle M, Baggish AL, Haykowsky MJ. Performance Limitations in Heart Transplant Recipients. Exerc Sport Sci Rev 2018; 46:144-151. [DOI: 10.1249/jes.0000000000000149] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/06/2018] [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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Baggio JM, Afiune CMC, Afiune JY, Sarabanda AV, Atik FA. Transvenous dual-chamber pacemaker after paediatric heart transplantation using left ventricle pacing through the coronary sinus. ESC Heart Fail 2018; 5:204-207. [PMID: 29356392 PMCID: PMC5793968 DOI: 10.1002/ehf2.12254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 10/28/2017] [Accepted: 11/27/2017] [Indexed: 11/11/2022] Open
Abstract
A 12‐year‐old child with end‐stage heart failure due to restrictive cardiomyopathy was submitted to orthotopic heart transplantation. Primary graft dysfunction required venous arterial extra‐corporeal membrane oxygenation. Heart function normalized, but complete atrioventricular block remained after 3 weeks. A dual‐chamber pacing with transvenous left ventricle pacing through the coronary sinus was performed. At 5‐year follow‐up, the patient is stable with the same pacing system and with preserved ventricular function.
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Affiliation(s)
- José Mario Baggio
- Division of Electrophysiology and Cardiac Device Unit, Instituto de Cardiologia do Distrito Federal, Brasília, Brazil
| | | | - Jorge Y Afiune
- Division of Pediatric Cardiology, Instituto de Cardiologia do Distrito Federal, Brasília, Brazil
| | - Alvaro V Sarabanda
- Division of Electrophysiology and Cardiac Device Unit, Instituto de Cardiologia do Distrito Federal, Brasília, Brazil
| | - Fernando A Atik
- Division of Cardiovascular Surgery and Transplant Unit, Instituto de Cardiologia do Distrito Federal, St Sudoeste Cruzeiro Novo, Brasília, 70658-700, Brazil
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Rivinius R, Helmschrott M, Ruhparwar A, Rahm AK, Darche FF, Thomas D, Bruckner T, Ehlermann P, Katus HA, Doesch AO. Control of cardiac chronotropic function in patients after heart transplantation: effects of ivabradine and metoprolol succinate on resting heart rate in the denervated heart. Clin Res Cardiol 2017; 107:138-147. [DOI: 10.1007/s00392-017-1165-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Accepted: 09/19/2017] [Indexed: 01/15/2023]
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Abstract
PURPOSE OF REVIEW Autonomic innervation is crucial for regulating cardiac function. Sympathetic innervation imaging with 123I-mIBG and analogous PET tracers assesses disease in ways that differ from customary methods. This review describes practical use in various clinical scenarios, discusses recent guidelines, presents new data confirming risk stratification power, describes an ongoing prospective study, and looks forward to wider use in patient management. RECENT FINDINGS ASNC 123I-mIBG guidelines are available, expanding on European guidelines. ADMIRE-HF patient follow-up increased to 2 years in ADMIRE HFX, demonstrating independent mortality risk reclassification. ADMIRE-HF findings were substantiated in a Japanese consortium study and in the PAREPET 11C-HED PET study. Exciting potential uses of adrenergic imaging are management of LVADs and VT ablation. CZT cameras provide advantages, but derived parameters differ from Anger camera values. Independent risk stratification utility of adrenergic imaging with 123I-mIBG and PET tracers is continuously being confirmed. An ongoing prospective randomized study promises to establish patient management utility. There is potential for wider use and improved images with newer cameras and PET.
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Affiliation(s)
- Mark I Travin
- Department of Radiology/Division of Nuclear Medicine, Montefiore Medical Center, Albert Einstein College of Medicine, 111 East-210th Street, Bronx, NY, 10467-2490, USA.
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Simsek E, Nalbantgil S, Ceylan N, Zoghi M, Kemal HS, Engin C, Yagdi T, Ozbaran M. Assessment of right ventricular systolic function in heart transplant patients: Correlation between echocardiography and cardiac magnetic resonance imaging. Investigation of the accuracy and reliability of echocardiography. Echocardiography 2017; 34:1432-1438. [DOI: 10.1111/echo.13650] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Affiliation(s)
- Evrim Simsek
- Department of Cardiology; School of Medicine; Ege University; Izmir Turkey
| | - Sanem Nalbantgil
- Department of Cardiology; School of Medicine; Ege University; Izmir Turkey
| | - Naim Ceylan
- Department of Radiology; School of Medicine; Ege University; Izmir Turkey
| | - Mehdi Zoghi
- Department of Cardiology; School of Medicine; Ege University; Izmir Turkey
| | - Hatice Soner Kemal
- Department of Cardiology; School of Medicine; Near East University; Lefkose Cyprus
| | - Cagatay Engin
- Department of Cardiovascular Surgery; School of Medicine; Ege University; Izmir Turkey
| | - Tahir Yagdi
- Department of Cardiovascular Surgery; School of Medicine; Ege University; Izmir Turkey
| | - Mustafa Ozbaran
- Department of Cardiovascular Surgery; School of Medicine; Ege University; Izmir Turkey
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49
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Peterson S, Su JA, Szmuszkovicz JR, Johnson R, Sargent B. Exercise capacity following pediatric heart transplantation: A systematic review. Pediatr Transplant 2017; 21. [PMID: 28419703 DOI: 10.1111/petr.12922] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/24/2017] [Indexed: 12/23/2022]
Abstract
Pediatric HTs account for 13% of all HTs with >60% of recipients surviving at least 10 years post-HT. The purpose of this systematic review is to synthesize the literature on exercise capacity of pediatric HT recipients to improve understanding of the mechanisms that may explain the decreased exercise capacity. Six databases were searched for studies that compared the exercise capacity of HT recipients ≤21 years old with a control group or normative data. Sixteen studies were included. Pediatric HT recipients, as compared to controls or normative data, exhibit significantly higher resting HR, and at peak exercise exhibit significantly decreased HR, VO2 , power, work, minute ventilation, and exercise duration. Peak VO2 appears to improve within the first 2.5 years post-HT; peak work remains constant; and there is inconclusive evidence that peak HR, HR recovery, and HR reserve improve with time since HT. These results are discussed in the context of the mechanisms that may explain the impaired exercise capacity of pediatric HT recipients, including chronotropic incompetence, graft dysfunction, side effects of immunosuppression therapy, and deconditioning. In addition, the limited literature on rehabilitation after pediatric HT is summarized.
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Affiliation(s)
- Sara Peterson
- Division of Pediatric Rehabilitation Medicine, Physical Therapy, Children's Hospital Los Angeles, Los Angeles, CA, USA.,Division of Biokinesiology & Physical Therapy, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - Jennifer A Su
- Division of Cardiology, Department of Pediatrics, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - Jacqueline R Szmuszkovicz
- Division of Cardiology, Department of Pediatrics, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - Robert Johnson
- Norris Medical Library, University of Southern California, Los Angeles, CA, USA
| | - Barbara Sargent
- Division of Biokinesiology & Physical Therapy, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
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50
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Varnado S, Peled-Potashnik Y, Huntsberry A, Lowes BD, Zolty R, Burdorf A, Lyden ER, Moulton MJ, Um JY, Raichlin E. Effect of diltiazem on exercise capacity after heart transplantation. Clin Transplant 2017; 31. [DOI: 10.1111/ctr.12997] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/30/2017] [Indexed: 11/27/2022]
Affiliation(s)
- Sara Varnado
- Division of Cardiology; University of Nebraska Medical Center; Omaha NE USA
| | | | - Ashley Huntsberry
- Division of Cardiology; University of Nebraska Medical Center; Omaha NE USA
| | - Brian D. Lowes
- Division of Cardiology; University of Nebraska Medical Center; Omaha NE USA
| | - Ronald Zolty
- Division of Cardiology; University of Nebraska Medical Center; Omaha NE USA
| | - Adam Burdorf
- Division of Cardiology; University of Nebraska Medical Center; Omaha NE USA
| | - Elizabeth R. Lyden
- Department of Biostatistics; College of Public Health; University of Nebraska Medical Center; Omaha NE USA
| | - Michael J. Moulton
- Department of Cardiothoracic Surgery; University of Nebraska Medical Center; Omaha NE USA
| | - John Y. Um
- Department of Cardiothoracic Surgery; University of Nebraska Medical Center; Omaha NE USA
| | - Eugenia Raichlin
- Department of Cardiology; Loyola University Medical Center; Maywood IL USA
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