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Triposkiadis F, Xanthopoulos A, Drakos SG, Boudoulas KD, Briasoulis A, Skoularigis J, Tsioufis K, Boudoulas H, Starling RC. Back to the basics: The need for an etiological classification of chronic heart failure. Curr Probl Cardiol 2024; 49:102460. [PMID: 38346611 DOI: 10.1016/j.cpcardiol.2024.102460] [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: 02/09/2024] [Accepted: 02/09/2024] [Indexed: 02/23/2024]
Abstract
The left ventricular (LV) ejection fraction (LVEF), despite its severe limitations, has had an epicentral role in heart failure (HF) classification, management, and risk stratification for decades. The major argument favoring the LVEF based HF classification has been that it defines groups of patients in which treatment is effective. However, this reasoning has recently collapsed, since medical treatment with neurohormonal inhibitors, has proved beneficial in most HF patients regardless of the LVEF. In addition, there has been compelling evidence, that the LVEF provides poor guidance for device treatment of chronic HF (implantation of cardioverter defibrillator, cardiac resynchronization therapy) since sudden cardiac death may occur and cardiac dyssynchronization may be disastrous in all HF patients. The same holds true for LV assist device implantation, in which the LVEF has been used as a surrogate for LV size. In this review article we update the evidence questioning the use of LVEF-based HF classification and argue that guidance of chronic HF treatment should transition to more contemporary concepts. Specifically, we propose an etiologic chronic HF classification predominantly based on epidemiological data, which will be foundational for further higher resolution phenotyping in the emerging era of precision medicine.
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Affiliation(s)
- Filippos Triposkiadis
- School of Medicine, European University Cyprus, Nicosia 2404, Cyprus; Department of Cardiology, University Hospital of Larissa, Larissa 41110, Greece.
| | - Andrew Xanthopoulos
- Department of Cardiology, University Hospital of Larissa, Larissa 41110, Greece
| | - Stavros G Drakos
- University of Utah Health and School of Medicine and Salt Lake VA Medical Center, Salt Lake City, UT 84108, USA
| | | | - Alexandros Briasoulis
- Medical School of Athens, National and Kapodistrian University of Athens, Athens 15772, Greece
| | - John Skoularigis
- Department of Cardiology, University Hospital of Larissa, Larissa 41110, Greece
| | - Konstantinos Tsioufis
- First Department of Cardiology, Medical School, Hippokration Hospital, University of Athens, Athens 115 27, Greece
| | | | - Randall C Starling
- Department of Cardiovascular Medicine, Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH 44195, USA
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Park J, Ahn H, Choi H, Choi H, Hwang I, Yoon YE, Cho G. Integrative Assessment of Cardiopulmonary Fitness Using Cardiopulmonary Exercise Test With Supine Bicycle Echocardiography in Patients Presenting Dyspnea. J Am Heart Assoc 2024; 13:e033815. [PMID: 38471829 PMCID: PMC11009994 DOI: 10.1161/jaha.123.033815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Accepted: 02/20/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND Cardiopulmonary exercise test (CPET) with supine bicycle echocardiography (SBE) enables comprehensive physiologic assessment during exercise. We characterized cardiopulmonary fitness by integrating CPET-SBE parameters and evaluated its prognostic value in patients presenting with dyspnea. METHODS AND RESULTS We retrospectively reviewed 473 consecutive patients who underwent CPET-SBE for dyspnea evaluation. A dimensionality reduction process was applied, transforming 24 clinical and CPET-SBE parameters into a 2-dimensional feature map, followed by patient clustering based on the data distribution. Clinical and exercise features were compared among the clusters in addition to the 5-year risk of clinical outcome (a composite of cardiovascular death and heart failure hospitalization). Maximum exercise effort (R >1) was achieved in 95% of cases. Through dimensionality reduction, 3 patient clusters were derived: Group 1 (n=157), 2 (n=104), and 3 (n=212). Median age and female proportion increased from Group 1 to 2, and 3, although resting echocardiography parameters showed no significant abnormalities among the groups. There was a worsening trend in the exercise response from Group 1 to 2 and 3, including left ventricular diastolic function, oxygen consumption, and ventilatory efficiency. During follow-up (median 6.0 [1.6-10.4] years), clinical outcome increased from Group 1 to 2 and 3 (5-year rate 3.7% versus 7.0% versus 13.0%, respectively; log-rank P=0.02), with higher risk in Group 2 (hazard ratio, 1.94 [95% CI, 0.52-7.22]) and Group 3 (3.92 [1.34-11.42]) compared with Group 1. CONCLUSIONS Comprehensive evaluation using CPET-SBE can reveal distinct characteristics of cardiopulmonary fitness in patients presenting with dyspnea, potentially enhancing outcome prediction.
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Affiliation(s)
- Jiesuck Park
- Department of Cardiology, Cardiovascular CenterSeoul National University Bundang HospitalSeongnamGyeonggi‐doRepublic of Korea
- Department of Internal MedicineSeoul National University College of MedicineSeoulRepublic of Korea
| | - Houng‐Beom Ahn
- Department of Cardiology, Cardiovascular CenterSeoul National University Bundang HospitalSeongnamGyeonggi‐doRepublic of Korea
- Department of Internal MedicineSeoul National University College of MedicineSeoulRepublic of Korea
| | - Hyejung Choi
- Department of Cardiology, Cardiovascular CenterSeoul National University Bundang HospitalSeongnamGyeonggi‐doRepublic of Korea
- Department of Internal MedicineSeoul National University College of MedicineSeoulRepublic of Korea
| | - Hong‐Mi Choi
- Department of Cardiology, Cardiovascular CenterSeoul National University Bundang HospitalSeongnamGyeonggi‐doRepublic of Korea
- Department of Internal MedicineSeoul National University College of MedicineSeoulRepublic of Korea
| | - In‐Chang Hwang
- Department of Cardiology, Cardiovascular CenterSeoul National University Bundang HospitalSeongnamGyeonggi‐doRepublic of Korea
- Department of Internal MedicineSeoul National University College of MedicineSeoulRepublic of Korea
| | - Yeonyee E. Yoon
- Department of Cardiology, Cardiovascular CenterSeoul National University Bundang HospitalSeongnamGyeonggi‐doRepublic of Korea
- Department of Internal MedicineSeoul National University College of MedicineSeoulRepublic of Korea
| | - Goo‐Yeong Cho
- Department of Cardiology, Cardiovascular CenterSeoul National University Bundang HospitalSeongnamGyeonggi‐doRepublic of Korea
- Department of Internal MedicineSeoul National University College of MedicineSeoulRepublic of Korea
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Alves PKN, Schauer A, Augstein A, Prieto Jarabo ME, Männel A, Barthel P, Vahle B, Moriscot AS, Linke A, Adams V. Leucine Supplementation Prevents the Development of Skeletal Muscle Dysfunction in a Rat Model of HFpEF. Cells 2024; 13:502. [PMID: 38534346 PMCID: PMC10969777 DOI: 10.3390/cells13060502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/07/2024] [Accepted: 03/12/2024] [Indexed: 03/28/2024] Open
Abstract
Heart failure with preserved ejection fraction (HFpEF) is associated with exercise intolerance due to alterations in the skeletal muscle (SKM). Leucine supplementation is known to alter the anabolic/catabolic balance and to improve mitochondrial function. Thus, we investigated the effect of leucine supplementation in both a primary and a secondary prevention approach on SKM function and factors modulating muscle function in an established HFpEF rat model. Female ZSF1 obese rats were randomized to an untreated, a primary prevention, and a secondary prevention group. For primary prevention, leucine supplementation was started before the onset of HFpEF (8 weeks of age) and for secondary prevention, leucine supplementation was started after the onset of HFpEF (20 weeks of age). SKM function was assessed at an age of 32 weeks, and SKM tissue was collected for the assessment of mitochondrial function and histological and molecular analyses. Leucine supplementation prevented the development of SKM dysfunction whereas it could not reverse it. In the primary prevention group, mitochondrial function improved and higher expressions of mitofilin, Mfn-2, Fis1, and miCK were evident in SKM. The expression of UCP3 was reduced whereas the mitochondrial content and markers for catabolism (MuRF1, MAFBx), muscle cross-sectional area, and SKM mass did not change. Our data show that leucine supplementation prevented the development of skeletal muscle dysfunction in a rat model of HFpEF, which may be mediated by improving mitochondrial function through modulating energy transfer.
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Affiliation(s)
- Paula Ketilly Nascimento Alves
- Heart Center Dresden, Laboratory of Molecular and Experimental Cardiology, TU Dresden, 01307 Dresden, Germany; (P.K.N.A.); (A.S.); (A.A.); (M.-E.P.J.); (A.M.); (B.V.); (A.L.)
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, São Paulo 05508000, Brazil;
| | - Antje Schauer
- Heart Center Dresden, Laboratory of Molecular and Experimental Cardiology, TU Dresden, 01307 Dresden, Germany; (P.K.N.A.); (A.S.); (A.A.); (M.-E.P.J.); (A.M.); (B.V.); (A.L.)
| | - Antje Augstein
- Heart Center Dresden, Laboratory of Molecular and Experimental Cardiology, TU Dresden, 01307 Dresden, Germany; (P.K.N.A.); (A.S.); (A.A.); (M.-E.P.J.); (A.M.); (B.V.); (A.L.)
| | - Maria-Elisa Prieto Jarabo
- Heart Center Dresden, Laboratory of Molecular and Experimental Cardiology, TU Dresden, 01307 Dresden, Germany; (P.K.N.A.); (A.S.); (A.A.); (M.-E.P.J.); (A.M.); (B.V.); (A.L.)
| | - Anita Männel
- Heart Center Dresden, Laboratory of Molecular and Experimental Cardiology, TU Dresden, 01307 Dresden, Germany; (P.K.N.A.); (A.S.); (A.A.); (M.-E.P.J.); (A.M.); (B.V.); (A.L.)
| | - Peggy Barthel
- Heart Center Dresden, Laboratory of Molecular and Experimental Cardiology, TU Dresden, 01307 Dresden, Germany; (P.K.N.A.); (A.S.); (A.A.); (M.-E.P.J.); (A.M.); (B.V.); (A.L.)
| | - Beatrice Vahle
- Heart Center Dresden, Laboratory of Molecular and Experimental Cardiology, TU Dresden, 01307 Dresden, Germany; (P.K.N.A.); (A.S.); (A.A.); (M.-E.P.J.); (A.M.); (B.V.); (A.L.)
| | - Anselmo S. Moriscot
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, São Paulo 05508000, Brazil;
| | - Axel Linke
- Heart Center Dresden, Laboratory of Molecular and Experimental Cardiology, TU Dresden, 01307 Dresden, Germany; (P.K.N.A.); (A.S.); (A.A.); (M.-E.P.J.); (A.M.); (B.V.); (A.L.)
| | - Volker Adams
- Heart Center Dresden, Laboratory of Molecular and Experimental Cardiology, TU Dresden, 01307 Dresden, Germany; (P.K.N.A.); (A.S.); (A.A.); (M.-E.P.J.); (A.M.); (B.V.); (A.L.)
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Bertrand É, Caru M, Harvey A, Andelfinger G, Laverdiere C, Krajinovic M, Sinnett D, Jacquemet V, Curnier D. QTc intervals at rest and during exercise assessed by group correction formulas in survivors of childhood acute lymphoblastic leukemia. J Electrocardiol 2024; 83:80-94. [PMID: 38382343 DOI: 10.1016/j.jelectrocard.2024.01.010] [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: 10/21/2023] [Revised: 12/07/2023] [Accepted: 01/28/2024] [Indexed: 02/23/2024]
Abstract
INTRODUCTION Early signs of subclinical cardiac damage must be identified before they turn into clinical manifestations. Tailoring a formula is relevant for precise QTc evaluation in childhood acute lymphoblastic leukemia (ALL) survivors considering they are at risk of long-term cardiac problems. Therefore, we aim to develop group heart rate correction formulas for QT intervals in childhood ALL survivors at rest and during exercise, and to assess the applicability of these methods across a variety of risk groups exposed to diverse chemotherapy dosages. METHODS Two hundred and fifty childhood ALL survivors in the PETALE study were classified into 3 groups depending on their prognostic risk group. ECG measurements (QT and RR intervals) were made at rest and during a cardiopulmonary exercise test. QT correction for heart rate was applied using 5 different formulas, which included 2 previously published formulas and 3 group-specific formulas for each sex. RESULTS The QT/RR relation showed 2 different curves between rest and during exercise, which was worse for females. Group-specific QTc formulas allowed adequate heart rate-corrected QT interval, independently of the cumulative dose of doxorubicin received during treatment. Group-specific formulas showed significantly shorter QTc intervals than QTc from Bazett's formula. QTc (Bazett's formula) values surpassed the established clinical norm in 22 males (11%) and 22 females (11%), with a majority occurring during exercise, affecting 15 males (7.5%) and 10 females (5%). CONCLUSION This study shows the applicability of personalized group correction of QT/RR data in childhood ALL survivors. Our comprehensive assessments (spanning rest, exercise, and recovery) is an effective approach for risk stratification of cardiac complications in childhood ALL survivors.
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Affiliation(s)
- Émilie Bertrand
- Laboratory of Pathophysiology of EXercise (LPEX), School of Kinesiology and Physical Activity Sciences, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada; Sainte-Justine University Health Center, Research Center, Montreal, Quebec, Canada
| | - Maxime Caru
- Department of Pediatrics, Division of Hematology and Oncology, Department of Public Health Sciences, Pennsylvania State Health Children's Hospital, Hershey, PA, USA
| | - Audrey Harvey
- Laboratory of Pathophysiology of EXercise (LPEX), School of Kinesiology and Physical Activity Sciences, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada; Sainte-Justine University Health Center, Research Center, Montreal, Quebec, Canada
| | - Gregor Andelfinger
- Sainte-Justine University Health Center, Research Center, Montreal, Quebec, Canada; Department of Pediatrics, University of Montreal, Montreal, Quebec, Canada
| | - Caroline Laverdiere
- Sainte-Justine University Health Center, Research Center, Montreal, Quebec, Canada; Department of Pediatrics, University of Montreal, Montreal, Quebec, Canada
| | - Maja Krajinovic
- Sainte-Justine University Health Center, Research Center, Montreal, Quebec, Canada; Department of Pediatrics, University of Montreal, Montreal, Quebec, Canada
| | - Daniel Sinnett
- Sainte-Justine University Health Center, Research Center, Montreal, Quebec, Canada; Department of Pediatrics, University of Montreal, Montreal, Quebec, Canada
| | - Vincent Jacquemet
- Department of Pharmacology and Physiology, Faculty of Medicine, University of Montreal, Montreal, Canada
| | - Daniel Curnier
- Laboratory of Pathophysiology of EXercise (LPEX), School of Kinesiology and Physical Activity Sciences, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada; Sainte-Justine University Health Center, Research Center, Montreal, Quebec, Canada.
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Leone D, Buber J, Shafer K. Exercise as Medicine: Evaluation and Prescription for Adults with Congenital Heart Disease. Curr Cardiol Rep 2023; 25:1909-1919. [PMID: 38117446 DOI: 10.1007/s11886-023-02006-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/22/2023] [Indexed: 12/21/2023]
Abstract
PURPOSE OF REVIEW Understanding exercise physiology as it relates to adult congenital heart disease (ACHD) can be complex. Here we review fundamental physiologic principles and provide a framework for application to the unique ACHD patient population. RECENT FINDINGS ACHD exercise participation has changed dramatically in the last 50 years. A modern approach focuses on exercise principles and individual anatomic and physiologic considerations. With an evolving better understanding of ACHD exercise physiology, we can strategize plans for patients to participate in dynamic and static exercises. Newly developed technologies including wearable devices provide additive information for ACHD providers for further assessment and monitoring. Preparation and assessment for ACHD patients prior to exercise require a thoughtful, personalized approach. Exercise prescriptions can be formulated to adequately meet the needs of our patients.
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Affiliation(s)
- David Leone
- Division of Cardiology, University of Washington, Seattle, WA, USA
| | - Jonathan Buber
- Division of Cardiology, University of Washington, Seattle, WA, USA
| | - Keri Shafer
- Boston Children's Hospital, Boston, MA, USA.
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6
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Masarone D, Kittleson MM, Falco L, Martucci ML, Catapano D, Brescia B, Petraio A, De Feo M, Pacileo G. The ABC of Heart Transplantation-Part 1: Indication, Eligibility, Donor Selection, and Surgical Technique. J Clin Med 2023; 12:5217. [PMID: 37629260 PMCID: PMC10455167 DOI: 10.3390/jcm12165217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/04/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
Cardiac transplantation represents the gold standard of treatment for selected patients with advanced heart failure who have poor functional capacity and prognosis despite guideline-directed medical therapy and device-based therapy. Proper patient selection and appropriate referral of patients to centers for the treatment of advanced heart failure are the first but decisive steps for screening patients eligible for cardiac transplantation. The eligibility and the decision to list for cardiac transplantation, even for patients with relative contraindications, are based on a multidisciplinary evaluation of a transplant team. This review will discuss the practical indications, the process of patient eligibility for cardiac transplantation, the principle of donor selection, as well as the surgical technique.
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Affiliation(s)
- Daniele Masarone
- Heart Failure Unit, Department of Cardiology, AORN dei Colli-Monaldi Hospital, 80131 Naples, Italy
| | - Michelle M. Kittleson
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Hospital, Los Angeles, CA 90048, USA
| | - Luigi Falco
- Heart Failure Unit, Department of Cardiology, AORN dei Colli-Monaldi Hospital, 80131 Naples, Italy
| | - Maria L. Martucci
- Heart Failure Unit, Department of Cardiology, AORN dei Colli-Monaldi Hospital, 80131 Naples, Italy
| | - Dario Catapano
- Heart Failure Unit, Department of Cardiology, AORN dei Colli-Monaldi Hospital, 80131 Naples, Italy
| | - Benedetta Brescia
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy
| | - Andrea Petraio
- Heart Transplant Unit, Department of Cardiac Surgery and Transplants, AORN dei Colli Monaldi Hospital, 80131 Naples, Italy
| | - Marisa De Feo
- Cardiac Surgery Unit, Department of Cardiac Surgery and Transplants, AORN dei Colli Monaldi Hospital, 80131 Naples, Italy
| | - Giuseppe Pacileo
- Heart Failure Unit, Department of Cardiology, AORN dei Colli-Monaldi Hospital, 80131 Naples, Italy
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Otto CM. Heartbeat: not all patients with primary mitral regurgitation are the same. Heart 2023; 109:245-247. [PMID: 36707079 DOI: 10.1136/heartjnl-2023-322427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Affiliation(s)
- Catherine M Otto
- Division of Cardiology, University of Washington, Seattle, Washington, USA
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8
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Hartmann JP, Dahl RH, Nymand S, Munch GW, Ryrsø CK, Pedersen BK, Thaning P, Mortensen SP, Berg RMG, Iepsen UW. Regulation of the microvasculature during small muscle mass exercise in chronic obstructive pulmonary disease vs. chronic heart failure. Front Physiol 2022; 13:979359. [PMID: 36134330 PMCID: PMC9483770 DOI: 10.3389/fphys.2022.979359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 08/08/2022] [Indexed: 11/21/2022] Open
Abstract
Aim: Skeletal muscle convective and diffusive oxygen (O2) transport are peripheral determinants of exercise capacity in both patients with chronic obstructive pulmonary disease (COPD) and chronic heart failure (CHF). We hypothesised that differences in these peripheral determinants of performance between COPD and CHF patients are revealed during small muscle mass exercise, where the cardiorespiratory limitations to exercise are diminished. Methods: Eight patients with moderate to severe COPD, eight patients with CHF (NYHA II), and eight age- and sex-matched controls were studied. We measured leg blood flow (Q̇leg) by Doppler ultrasound during submaximal one-legged knee-extensor exercise (KEE), while sampling arterio-venous variables across the leg. The capillary oxyhaemoglobin dissociation curve was reconstructed from paired femoral arterial-venous oxygen tensions and saturations, which enabled the estimation of O2 parameters at the microvascular level within skeletal muscle, so that skeletal muscle oxygen conductance (DSMO2) could be calculated and adjusted for flow (DSMO2/Q̇leg) to distinguish convective from diffusive oxygen transport. Results: During KEE, Q̇leg increased to a similar extent in CHF (2.0 (0.4) L/min) and controls (2.3 (0.3) L/min), but less in COPD patients (1.8 (0.3) L/min) (p <0.03). There was no difference in resting DSMO2 between COPD and CHF and when adjusting for flow, the DSMO2 was higher in both groups compared to controls (COPD: 0.97 (0.23) vs. controls 0.63 (0.24) mM/kPa, p= 0.02; CHF 0.98 (0.11) mM/kPa vs. controls, p= 0.001). The Q̇-adjusted DSMO2 was not different in COPD and CHF during KEE (COPD: 1.19 (0.11) vs. CHF: 1.00 (0.18) mM/kPa; p= 0.24) but higher in COPD vs. controls: 0.87 (0.28) mM/kPa (p= 0.02), and only CHF did not increase Q̇-adjusted DSMO2 from rest (p= 0.2). Conclusion: Disease-specific factors may play a role in peripheral exercise limitation in patients with COPD compared with CHF. Thus, low convective O2 transport to contracting muscle seemed to predominate in COPD, whereas muscle diffusive O2 transport was unresponsive in CHF.
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Affiliation(s)
- Jacob Peter Hartmann
- Centre for Physical Activity Research, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Rasmus H. Dahl
- Department of Radiology, Hvidovre Hospital, Copenhagen, Denmark
- Department of Radiology, University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Stine Nymand
- Centre for Physical Activity Research, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Gregers W. Munch
- Centre for Physical Activity Research, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Camilla K. Ryrsø
- Centre for Physical Activity Research, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Pulmonary and Infectious Diseases, Copenhagen University Hospital, North Zealand, Hillerød, Denmark
| | - Bente K. Pedersen
- Centre for Physical Activity Research, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Pia Thaning
- Centre for Physical Activity Research, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Respiratory Medicine, Copenhagen University Hospital, Hvidovre Hospital, Copenhagen, Denmark
| | - Stefan P. Mortensen
- Department of Cardiovascular and Renal Research, University of Southern Denmark, Copenhagen, Denmark
| | - Ronan M. G. Berg
- Centre for Physical Activity Research, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Neurovascular Research Laboratory, Faculty of Life Sciences and Education, University of South Wales, Pontypridd, United Kingdom
| | - Ulrik Winning Iepsen
- Centre for Physical Activity Research, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Anaesthesiology and Intensive Care, Copenhagen University Hospital, Bispebjerg Hospital, Copenhagen, Denmark
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