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Mulser L, Moreau D. Effect of Acute Cardiovascular Exercise on Cerebral Blood Flow: A Systematic Review. Brain Res 2023; 1809:148355. [PMID: 37003561 DOI: 10.1016/j.brainres.2023.148355] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/14/2023] [Accepted: 03/21/2023] [Indexed: 04/03/2023]
Abstract
A single bout of cardiovascular exercise can have a cascade of physiological effects, including increased blood flow to the brain. This effect has been documented across multiple modalities, yet studies have reported mixed findings. Here, we systematically review evidence for the acute effect of cardiovascular exercise on cerebral blood flow across a range of neuroimaging techniques and exercise characteristics. Based on 52 studies and a combined sample size of 1,174 individuals, our results indicate that the acute effect of cardiovascular exercise on cerebral blood flow generally follows an inverted U-shaped relationship, whereby blood flow increases early on but eventually decreases as exercise continues. However, we also find that this effect is not uniform across studies, instead varying across a number of key variables including exercise characteristics, brain regions, and neuroimaging modalities. As the most comprehensive synthesis on the topic to date, this systematic review sheds light on the determinants of exercise-induced change in cerebral blood flow, a necessary step toward personalized interventions targeting brain health across a range of populations.
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Affiliation(s)
- Lisa Mulser
- School of Psychology The University of Auckland
| | - David Moreau
- School of Psychology and Centre for Brain Research The University of Auckland.
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2
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Galdino GAM, Rehder-Santos P, Linares SN, Beltrame T, Catai AM. Cerebral oxygenation during cardiopulmonary exercise testing in cardiorespiratory diseases: A systematic review. Heart Lung 2023; 59:23-32. [PMID: 36669443 DOI: 10.1016/j.hrtlng.2023.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 12/29/2022] [Accepted: 01/08/2023] [Indexed: 01/20/2023]
Abstract
BACKGROUND Cardiopulmonary exercise testing (CPET) is the gold standard for analyzing cardiorespiratory fitness and integrating physiological responses. However, the presence of chronic diseases may compromise cerebral hemodynamic responses during CPET. In addition, the acute response of cerebral oxygenation during incremental CPET may identify abnormal behavior and ensure greater safety for patients with cardiovascular, respiratory, and metabolic diseases. OBJECTIVE To summarize the cerebral oxygenation acute response during CPET of patients with cardiovascular, metabolic, or respiratory diseases. METHODS From inception to 23rd September 2022, five databases (PubMed, SCOPUS, Web of Science, Embase and CINAHAL) were searched for cross-sectional studies performing incremental CPET and measuring the cerebral oxygenation acute response in cardiovascular, metabolic, or respiratory diseases compared with healthy individuals. The Downs and Black tool assessed the risk of bias of the studies. RESULTS We included seven studies with 428 participants (305 men and 123 women), aged 43 to 70 years. Of these, 101 had heart failure NYHA II and III; 77 idiopathic dilated cardiomyopathy; 33 valvular disease; 25 coronary heart disease; 22 pulmonary arterial hypertension; 15 had severe obstructive sleep apnea (OSA) and 166 were apparently healthy. There was no eligible article with metabolic disease. There was a lower magnitude increase in cerebral oxygenation of cardiovascular patients compared with the healthy individuals during the CPET. Furthermore, pulmonary arterial hypertension patients presented increased cerebral oxygen extraction, differently to those with severe OSA. CONCLUSION Considering the heterogeneity of the included studies, patients with cardiovascular disease may suffer from reduced cerebral oxygen supply, and individuals with OSA presented lower brain oxygen extraction during the CPET. Future studies should aim for strategies to improve cerebral oxygenation to ensure greater safety at CPET of cardiovascular and OSA patients. An acute response pattern for metabolic and other respiratory diseases was not established.
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Affiliation(s)
- Gabriela Aguiar Mesquita Galdino
- Cardiovascular Physical Therapy Laboratory, Department of Physical Therapy, Federal University of São Carlos, São Carlos, SP, Brazil
| | - Patrícia Rehder-Santos
- Cardiovascular Physical Therapy Laboratory, Department of Physical Therapy, Federal University of São Carlos, São Carlos, SP, Brazil
| | - Stephanie Nogueira Linares
- Cardiovascular Physical Therapy Laboratory, Department of Physical Therapy, Federal University of São Carlos, São Carlos, SP, Brazil
| | - Thomas Beltrame
- Cardiovascular Physical Therapy Laboratory, Department of Physical Therapy, Federal University of São Carlos, São Carlos, SP, Brazil; Samsung R&D Institute Brazil - SRBR, Campinas, SP, Brazil
| | - Aparecida Maria Catai
- Cardiovascular Physical Therapy Laboratory, Department of Physical Therapy, Federal University of São Carlos, São Carlos, SP, Brazil.
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3
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Marillier M, Gruet M, Bernard AC, Verges S, Neder JA. The Exercising Brain: An Overlooked Factor Limiting the Tolerance to Physical Exertion in Major Cardiorespiratory Diseases? Front Hum Neurosci 2022; 15:789053. [PMID: 35126072 PMCID: PMC8813863 DOI: 10.3389/fnhum.2021.789053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 12/28/2021] [Indexed: 12/18/2022] Open
Abstract
“Exercise starts and ends in the brain”: this was the title of a review article authored by Dr. Bengt Kayser back in 2003. In this piece of work, the author highlights that pioneer studies have primarily focused on the cardiorespiratory-muscle axis to set the human limits to whole-body exercise tolerance. In some circumstances, however, exercise cessation may not be solely attributable to these players: the central nervous system is thought to hold a relevant role as the ultimate site of exercise termination. In fact, there has been a growing interest relative to the “brain” response to exercise in chronic cardiorespiratory diseases, and its potential implication in limiting the tolerance to physical exertion in patients. To reach these overarching goals, non-invasive techniques, such as near-infrared spectroscopy and transcranial magnetic stimulation, have been successfully applied to get insights into the underlying mechanisms of exercise limitation in clinical populations. This review provides an up-to-date outline of the rationale for the “brain” as the organ limiting the tolerance to physical exertion in patients with cardiorespiratory diseases. We first outline some key methodological aspects of neuromuscular function and cerebral hemodynamics assessment in response to different exercise paradigms. We then review the most prominent studies, which explored the influence of major cardiorespiratory diseases on these outcomes. After a balanced summary of existing evidence, we finalize by detailing the rationale for investigating the “brain” contribution to exercise limitation in hitherto unexplored cardiorespiratory diseases, an endeavor that might lead to innovative lines of applied physiological research.
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Affiliation(s)
- Mathieu Marillier
- Laboratory of Clinical Exercise Physiology, Queen's University and Kingston General Hospital, Kingston, ON, Canada
- HP2 Laboratory, INSERM U1300, Grenoble Alpes University, Grenoble, France
| | - Mathieu Gruet
- IAPS Laboratory, University of Toulon, Toulon, France
| | - Anne-Catherine Bernard
- Laboratory of Clinical Exercise Physiology, Queen's University and Kingston General Hospital, Kingston, ON, Canada
- HP2 Laboratory, INSERM U1300, Grenoble Alpes University, Grenoble, France
| | - Samuel Verges
- HP2 Laboratory, INSERM U1300, Grenoble Alpes University, Grenoble, France
| | - J Alberto Neder
- Laboratory of Clinical Exercise Physiology, Queen's University and Kingston General Hospital, Kingston, ON, Canada
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Bérubé B, Boidin M, Gayda M, Vincent T, Tremblay J, Juneau M, Nigam A, Bherer L. Acute effects of exercise on cerebrovascular response and cognitive performance in individuals with stable coronary heart disease. Brain Res 2021; 1772:147671. [PMID: 34606749 DOI: 10.1016/j.brainres.2021.147671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 09/24/2021] [Accepted: 09/25/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND Individuals with coronary heart disease (CHD) exhibit cognitive deficits and cerebrovascular dysfunctions, and are at higher risk of developing dementia. Cognitive function in individuals with CHD has never been studied during acute aerobic exercise. Given the increasing popularity of training at high peak power output (PPO), its impact on cerebrovascular and cognitive functions in individuals with CHD should be further studied. METHOD Thirty-eight individuals with CHD and 16 healthy controls completed two exercise bouts at 30% and 70% of their individualized PPO on an ergocycle while performing a cognitive task including non-executive and executive conditions. Variations of oxy- deoxy-hemoglobin, and total hemoglobin concentrations were measured on left prefrontal cortex at both PPO using near-infrared spectroscopy. RESULTS Cognitive task performances were equivalent between groups at all intensity levels. Individuals with CHD exhibited larger variation of deoxyhemoglobin in the executive condition and larger variation in total hemoglobin concentration in all task conditions compared to healthy controls at 70% of PPO. CONCLUSION Exercising at high intensity seems to have a larger impact on cerebral blood volume in CHD patients compared to healthy age-matched controls. Higher exercise intensity has negative impacts on cerebral blood volume variations during a cognitive task in CHD patients and could potentially lead to other neurocognitive dysfunctions. Other studies are needed to determine if a cognitive task administered during an exercise test could help identify individuals with CHD at higher risk of developing cognitive decline.
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Affiliation(s)
- B Bérubé
- Research Center and Preventive Medicine and Physical Activity Center (EPIC), Montreal Heart Institute, Montréal, Québec, Canada; Research Center, Institut Universitaire de Gériatrie de Montréal, Montréal, Québec, Canada; Department of Psychology, Université de Montréal, Montréal, Québec, Canada.
| | - M Boidin
- Research Center and Preventive Medicine and Physical Activity Center (EPIC), Montreal Heart Institute, Montréal, Québec, Canada; School of Kinesiology and Exercise Science, Faculty of Medicine, Université de Montréal, Montréal, Quebec, Canada
| | - M Gayda
- Research Center and Preventive Medicine and Physical Activity Center (EPIC), Montreal Heart Institute, Montréal, Québec, Canada; Research Center, Institut Universitaire de Gériatrie de Montréal, Montréal, Québec, Canada; Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - T Vincent
- Research Center and Preventive Medicine and Physical Activity Center (EPIC), Montreal Heart Institute, Montréal, Québec, Canada; Research Center, Institut Universitaire de Gériatrie de Montréal, Montréal, Québec, Canada
| | - J Tremblay
- School of Kinesiology and Exercise Science, Faculty of Medicine, Université de Montréal, Montréal, Quebec, Canada
| | - M Juneau
- Research Center and Preventive Medicine and Physical Activity Center (EPIC), Montreal Heart Institute, Montréal, Québec, Canada; Research Center, Institut Universitaire de Gériatrie de Montréal, Montréal, Québec, Canada; Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - A Nigam
- Research Center and Preventive Medicine and Physical Activity Center (EPIC), Montreal Heart Institute, Montréal, Québec, Canada; Research Center, Institut Universitaire de Gériatrie de Montréal, Montréal, Québec, Canada; Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - L Bherer
- Research Center and Preventive Medicine and Physical Activity Center (EPIC), Montreal Heart Institute, Montréal, Québec, Canada; Research Center, Institut Universitaire de Gériatrie de Montréal, Montréal, Québec, Canada; Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
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5
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Abstract
The view that chronic heart failure was exclusively a disease of the heart dominated the cardiovascular literature until relatively recently. However, over the last 40 years it has increasingly come to be seen as a multisystem disease. Aside from changes in the sympathetic and parasympathetic nervous systems and the renin-angiotensin-aldosterone system, adaptations to the lungs, muscles and gastrointestinal tract have been clearly documented. It is clear that the brain and CNS are also affected in patients with heart failure, although this is often under recognized. The purpose of this review is to summarize the changes in the structure and biochemical function of the CNS in patients with chronic heart failure and to discuss their potential importance.
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Affiliation(s)
- Mark Dayer
- Department of Cardiology, Musgrove Park Hospital, Taunton, TA1 5DA, UK
| | - David H MacIver
- Department of Cardiology, Musgrove Park Hospital, Taunton, TA1 5DA, UK.,Biological Physics Group, School of Physics & Astronomy, University of Manchester, Manchester, M13 9PL, UK
| | - Stuart D Rosen
- Ealing & Royal Brompton Hospitals, Uxbridge Rd, Southall, UB1 3HW, UK.,Imperial College London, South Kensington, London, SW7 2BU, UK
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Goulart CDL, Arêas GPT, Caruso FR, Araújo ASG, de Moura SCG, Catai AM, Beltrame T, Junior LCDC, Dos Santos PB, Roscani MG, Mendes RG, Arena R, Borghi-Silva A. Effect of high-intensity exercise on cerebral, respiratory and peripheral muscle oxygenation of HF and COPD-HF patients. Heart Lung 2020; 50:113-120. [PMID: 32709499 DOI: 10.1016/j.hrtlng.2020.06.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 05/15/2020] [Accepted: 06/29/2020] [Indexed: 01/09/2023]
Abstract
OBJECTIVE To investigate cerebral oxygenation (Cox) responses as well as respiratory (Res) and active peripheral muscle (Pm) O2 delivery during high-intensity cycling exercise and contrast responses between patients with coexistent chronic obstructive pulmonary disease (COPD)-heart failure (HF) and HF alone. METHODS Cross-sectional study involving 11 COPD-HF and 11 HF patients. On two different days, patients performed maximal incremental cardiopulmonary exercise testing (CPET) and constant load exercise on a cycle ergometer until the limit of tolerance (Tlim). The high-intensity exercise session was 80% of the peak CPET work rate. Relative blood concentrations of oxyhemoglobin ([O2Hb]), deoxyhemoglobin ([HHb]) of Res, Pm (right vastus lateralis) and Cox (pre-frontal) were measured using near infrared spectroscopy. RESULTS We observed a greater decrease in [O2Hb] at a lower Tlim in COPD-HF when compared to HF (P < 0.05). [HHb] of Res was higher (P < 0.05) and Tlim was lower in COPD-HF vs. HF. Pm and Cox were lower and Tlim was higher in (P < 0.05) HF vs. COPD-HF. In HF, there was a lower ∆[O2Hb] and higher ∆ [HHb] of Pm when contrasted to Cox observed during exercise, as well as a lower ∆ [O2Hb] and higher ∆ [HHb] of Res when contrasted with Cox (P < 0.05). However, COPD-HF patients presented with a higher ∆ [HHb] of Res and Pm when contrasted with Cox (P < 0.05). CONCLUSION The coexistence of COPD in patients with HF produces negative effects on Cox, greater deoxygenation of the respiratory and peripheral muscles and higher exertional dyspnea, which may help to explain an even lower exercise tolerance in this multimorbidity phenotype.
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Affiliation(s)
- Cássia da Luz Goulart
- Cardiopulmonary Physiotherapy Laboratory, Physiotherapy Department, Federal University of Sao Carlos, UFSCar, Rodovia Washington Luis, KM 235, Monjolinho, CEP: 13565-905, Sao Carlos, SP, Brazil
| | - Guilherme Peixoto Tinoco Arêas
- Cardiopulmonary Physiotherapy Laboratory, Physiotherapy Department, Federal University of Sao Carlos, UFSCar, Rodovia Washington Luis, KM 235, Monjolinho, CEP: 13565-905, Sao Carlos, SP, Brazil; Human Physiology Laboratory, Physiology Department, Federal University of Amazonas, UFAM, v. General Rodrigo Octávio, 6200, Coroado I, CEP: 69080-900, Manaus, AM, Brazil
| | - Flávia Rossi Caruso
- Cardiopulmonary Physiotherapy Laboratory, Physiotherapy Department, Federal University of Sao Carlos, UFSCar, Rodovia Washington Luis, KM 235, Monjolinho, CEP: 13565-905, Sao Carlos, SP, Brazil
| | - Adriana S Garcia Araújo
- Cardiopulmonary Physiotherapy Laboratory, Physiotherapy Department, Federal University of Sao Carlos, UFSCar, Rodovia Washington Luis, KM 235, Monjolinho, CEP: 13565-905, Sao Carlos, SP, Brazil
| | - Sílvia Cristina Garcia de Moura
- Cardiovascular Physical Therapy Laboratory, Physiotherapy Department, Federal University of São Carlos, Rod Washington Luis, KM 235, Monjolinho, CEP: 13565-905, Sao Carlos, SP, Brazil
| | - Aparecida Maria Catai
- Cardiovascular Physical Therapy Laboratory, Physiotherapy Department, Federal University of São Carlos, Rod Washington Luis, KM 235, Monjolinho, CEP: 13565-905, Sao Carlos, SP, Brazil
| | - Thomas Beltrame
- Cardiovascular Physical Therapy Laboratory, Physiotherapy Department, Federal University of São Carlos, Rod Washington Luis, KM 235, Monjolinho, CEP: 13565-905, Sao Carlos, SP, Brazil
| | - Luiz Carlos de Carvalho Junior
- Cardiopulmonary Physiotherapy Laboratory, Physiotherapy Department, Federal University of Sao Carlos, UFSCar, Rodovia Washington Luis, KM 235, Monjolinho, CEP: 13565-905, Sao Carlos, SP, Brazil
| | - Polliana Batista Dos Santos
- Cardiopulmonary Physiotherapy Laboratory, Physiotherapy Department, Federal University of Sao Carlos, UFSCar, Rodovia Washington Luis, KM 235, Monjolinho, CEP: 13565-905, Sao Carlos, SP, Brazil
| | | | - Renata Gonçalves Mendes
- Cardiopulmonary Physiotherapy Laboratory, Physiotherapy Department, Federal University of Sao Carlos, UFSCar, Rodovia Washington Luis, KM 235, Monjolinho, CEP: 13565-905, Sao Carlos, SP, Brazil
| | - Ross Arena
- Department of Physical Therapy, College of Applied Health Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Audrey Borghi-Silva
- Cardiopulmonary Physiotherapy Laboratory, Physiotherapy Department, Federal University of Sao Carlos, UFSCar, Rodovia Washington Luis, KM 235, Monjolinho, CEP: 13565-905, Sao Carlos, SP, Brazil.
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7
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New Directions in Exercise Prescription: Is There a Role for Brain-Derived Parameters Obtained by Functional Near-Infrared Spectroscopy? Brain Sci 2020; 10:brainsci10060342. [PMID: 32503207 PMCID: PMC7348779 DOI: 10.3390/brainsci10060342] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/25/2020] [Accepted: 05/29/2020] [Indexed: 02/06/2023] Open
Abstract
In the literature, it is well established that regular physical exercise is a powerful strategy to promote brain health and to improve cognitive performance. However, exact knowledge about which exercise prescription would be optimal in the setting of exercise–cognition science is lacking. While there is a strong theoretical rationale for using indicators of internal load (e.g., heart rate) in exercise prescription, the most suitable parameters have yet to be determined. In this perspective article, we discuss the role of brain-derived parameters (e.g., brain activity) as valuable indicators of internal load which can be beneficial for individualizing the exercise prescription in exercise–cognition research. Therefore, we focus on the application of functional near-infrared spectroscopy (fNIRS), since this neuroimaging modality provides specific advantages, making it well suited for monitoring cortical hemodynamics as a proxy of brain activity during physical exercise.
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Eggermont LHP, Aly MFA, Vuijk PJ, de Boer K, Kamp O, van Rossum AC, Scherder EJA. Cardiac function and cognition in older community-dwelling cardiac patients. Psychogeriatrics 2017; 17:356-363. [PMID: 28417534 DOI: 10.1111/psyg.12245] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 09/01/2016] [Accepted: 12/01/2016] [Indexed: 11/27/2022]
Abstract
BACKGROUND Cognitive deficits have been reported in older cardiac patients. An underlying mechanism for these findings may be reduced cardiac function. The relationship between cardiac function as represented by different echocardiographic measures and different cognitive function domains in older cardiac patients remains unknown. METHODS An older (≥70 years) heterogeneous group of 117 community-dwelling cardiac patients under medical supervision by a cardiologist underwent thorough echocardiographic assessment including left ventricular ejection fraction, cardiac index, left atrial volume index, left ventricular mass index, left ventricular diastolic function, and valvular calcification. During a home visit, a neuropsychological assessment was performed within 7.1 ± 3.8 months after echocardiographic assessment; the neuropsychological assessment included three subtests of a word-learning test (encoding, recall, recognition) to examine one memory function domain and three executive function tests, including digit span backwards, Trail Making Test B minus A, and the Stroop colour-word test. RESULTS Regression analyses showed no significant linear or quadratic associations between any of the echocardiographic functions and the cognitive function measures. CONCLUSIONS None of the echocardiographic measures as representative of cardiac function was correlated with memory or executive function in this group of community-dwelling older cardiac patients. These findings contrast with those of previous studies.
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Affiliation(s)
- Laura H P Eggermont
- Department of Clinical Neuropsychology, VU University, Amsterdam, the Netherlands
| | - Mohamed F A Aly
- Department of Cardiology, VU University Medical Center, Amsterdam, the Netherlands.,Department of Cardiology, University Hospital, Beni-Suef, Egypt
| | - Pieter J Vuijk
- Department of Clinical Neuropsychology, VU University, Amsterdam, the Netherlands
| | - Karin de Boer
- Department of Cardiology, VU University Medical Center, Amsterdam, the Netherlands
| | - Otto Kamp
- Department of Cardiology, VU University Medical Center, Amsterdam, the Netherlands
| | - Albert C van Rossum
- Department of Cardiology, VU University Medical Center, Amsterdam, the Netherlands
| | - Erik J A Scherder
- Department of Clinical Neuropsychology, VU University, Amsterdam, the Netherlands
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9
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Abstract
OBJECTIVES The objectives of this review are to discuss the mechanisms by which respiration impacts cardiovascular function and vice versa, with an emphasis on the impact of these interactions in pediatric cardiac critical care. DATA SOURCE A search of MEDLINE was conducted using PubMed. CONCLUSIONS In the presence of underlying cardiac and respiratory disease, the interplay between these two systems is significant and plays a pivotal role in the pathophysiology of acute and chronic phases of a wide spectrum of diseases. An understanding of these relationships is essential to optimizing the care of critically ill patients.
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10
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Oliveira MF, Alencar MC, Arbex F, Souza A, Sperandio P, Medina L, Medeiros WM, Hirai DM, O'Donnell DE, Neder JA. Effects of heart failure on cerebral blood flow in COPD: Rest and exercise. Respir Physiol Neurobiol 2016; 221:41-8. [DOI: 10.1016/j.resp.2015.10.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 10/07/2015] [Accepted: 10/10/2015] [Indexed: 12/13/2022]
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11
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Calderon-Arnulphi M, Alaraj A, Slavin KV. Near infrared technology in neuroscience: past, present and future. Neurol Res 2013; 31:605-14. [DOI: 10.1179/174313209x383286] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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12
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Rooks CR, Thom NJ, McCully KK, Dishman RK. Effects of incremental exercise on cerebral oxygenation measured by near-infrared spectroscopy: A systematic review. Prog Neurobiol 2010; 92:134-50. [DOI: 10.1016/j.pneurobio.2010.06.002] [Citation(s) in RCA: 218] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2010] [Revised: 05/22/2010] [Accepted: 06/04/2010] [Indexed: 11/25/2022]
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13
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Toiyama K, Hamaoka K, Oka T, Kobayashi N, Noritake K, Kato R, Kawai Y, Ozawa S, Nishida M, Itoi T. Changes in Cerebral Oxygen Saturation and Blood Flow During Hypoxic Gas Ventilation Therapy in HLHS and CoA/IAA Complex With Markedly Increased Pulmonary Blood Flow. Circ J 2010; 74:2125-31. [DOI: 10.1253/circj.cj-09-0833] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kentaro Toiyama
- Department of Pediatric Cardiology and Nephrology, Kyoto Prefectural University of Medicine Graduate School of Medical Science
| | - Kenji Hamaoka
- Department of Pediatric Cardiology and Nephrology, Kyoto Prefectural University of Medicine Graduate School of Medical Science
| | - Tatsujiro Oka
- Department of Pediatric Cardiology and Nephrology, Kyoto Prefectural University of Medicine Graduate School of Medical Science
| | - Naho Kobayashi
- Department of Pediatric Cardiology and Nephrology, Kyoto Prefectural University of Medicine Graduate School of Medical Science
| | - Kanae Noritake
- Department of Pediatric Cardiology and Nephrology, Kyoto Prefectural University of Medicine Graduate School of Medical Science
| | - Ryuichi Kato
- Department of Pediatric Cardiology and Nephrology, Kyoto Prefectural University of Medicine Graduate School of Medical Science
| | - Yoko Kawai
- Department of Pediatric Cardiology and Nephrology, Kyoto Prefectural University of Medicine Graduate School of Medical Science
| | - Seiichiro Ozawa
- Department of Pediatric Cardiology and Nephrology, Kyoto Prefectural University of Medicine Graduate School of Medical Science
| | - Masashi Nishida
- Department of Pediatric Cardiology and Nephrology, Kyoto Prefectural University of Medicine Graduate School of Medical Science
| | - Toshiyuki Itoi
- Department of Pediatric Cardiology and Nephrology, Kyoto Prefectural University of Medicine Graduate School of Medical Science
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14
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Koike A. Author's Reply, "Clinical Significance of Cerebral Oxygenation During Exercise in Patients With Coronary Artery Disease". Circ J 2009. [DOI: 10.1253/circj.cj-08-1079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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Quaresima V, Ferrari M. Letter to the Editor, "Clinical Significance of Cerebral Oxygenation During Exercise in Patients With Coronary Artery Disease". Circ J 2009; 73:388; author reply 389. [DOI: 10.1253/circj.cj-08-1035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Marco Ferrari
- Department of Health Sciences, University of L'Aquila
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16
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Koike A, Nagayama O, Hoshimoto-Iwamoto M, Suzuki T, Tajima A, Uejima T, Aizawa T. Clinical significance of cerebral oxygenation during exercise in patients with coronary artery disease. Circ J 2008; 72:1852-8. [PMID: 18832776 DOI: 10.1253/circj.cj-08-0376] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Recent investigations have demonstrated that cerebral oxyhemoglobin (O(2)Hb) decreases during exercise in patients with left ventricular dysfunction, reflecting a cerebral hypoxia. We sought to establish a prognostic value of decreased cerebral O(2)Hb during exercise in cardiac patients, and to compare it with those of indexes obtained from cardiopulmonary exercise testing (CPX). METHODS AND RESULTS A total of 344 consecutive patients with coronary artery disease were enrolled in the study. All the patients performed CPX, during which cerebral O(2)Hb was continuously monitored using near-infrared spectroscopy. There were 13 cardiac deaths and 78 cardiovascular events during the prospective follow-up period of 1,231+/-538 days. The change of O(2)Hb measured at the forehead from rest to peak exercise (DeltaO(2)Hb) was significantly lower in non-survivors than in survivors (-1.5+/-3.3 vs 1.7+/-3.2 micromol/L, p=0.0004). By multivariate Cox proportional hazards analysis, DeltaO(2)Hb and left ventricular ejection fraction (LVEF) were found to be independent prognostic markers for cardiac deaths. The DeltaO(2)Hb, LVEF and peak oxygen uptake were found to be significant prognostic markers for cardiovascular events, mainly for heart failure worsening and sudden cardiac death. CONCLUSION The present findings suggest that a decrease in cerebral O(2)Hb during exercise predicts future cardiovascular events in patients with coronary artery disease.
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Affiliation(s)
- Akira Koike
- The Cardiovascular Institute, Minato-ku, Tokyo, Japan.
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17
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Koike A, Nagayama O, Goda A, Hoshimoto M, Yamaguchi K, Tajima A, Uejima T, Itoh H, Aizawa T. Effects of Supplemental O2 Inhalation on Cerebral Oxygenation During Exercise in Patients With Left Ventricular Dysfunction. Circ J 2007; 71:1418-23. [PMID: 17721021 DOI: 10.1253/circj.71.1418] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND It has been recently reported that cerebral oxyhemoglobin (O(2)Hb) decreases during exercise in nearly 50% of patients with dilated cardiomyopathy. The present study evaluated whether the inhalation of supplemental O(2) diminishes the decrease in cerebral O(2)Hb during exercise. METHODS AND RESULTS Ten patients with a left ventricular ejection fraction <50% and a clearly observable decrease in cerebral O(2)Hb during preliminary exercise testing underwent 2 additional symptom-limited incremental exercise tests: 1 while breathing room air (control) and the other while breathing 50% O(2). In the latter test, the switch from room air to 50% O(2) was performed, on average, at 43.0+/-14.2 W. Cerebral O(2)Hb was continuously monitored during exercise using near-infrared spectroscopy. In the control exercise test, cerebral O(2)Hb gradually decreased as the work rate increased in all the subjects. When the subjects breathed 50% O(2), this decrease in cerebral O(2)Hb was diminished. The change in cerebral O(2)Hb from rest to peak exercise during the test under 50% O(2) was significantly higher than that during the control test (-0.23 +/-1.89 vs -2.47+/-1.57 micromol/L, p=0.002). Similarly, the change in the cerebral tissue oxygenation index was significantly higher in the test under 50% O(2) (0.45 +/-4.46 vs -3.33+/-3.06%, p=0.023). CONCLUSIONS Impaired cerebral oxygenation during moderate to heavy intensity exercise in patients with left ventricular dysfunction can be offset by breathing supplemental O(2).
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Nagayama O, Koike A, Hoshimoto M, Yamaguchi K, Tajima A, Goda A, Uejima T, Itoh H, Aizawa T. Influence of Cerebrovascular Arteriosclerosis on Cerebral Oxygenation During Exercise. Circ J 2007; 71:782-7. [PMID: 17457009 DOI: 10.1253/circj.71.782] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Although it is assumed that cerebral oxygenation during exercise is influenced by both cardiopulmonary function and cerebrovascular arteriosclerosis, the latter factor has not been fully clarified. In the present study the relationship between the degree of cerebrovascular arteriosclerosis and cerebral oxygenation during exercise was investigated. METHODS AND RESULTS A total of 109 patients (69 patients with coronary artery disease, 40 patients with hypertensive heart disease) (61.7+/-9.7 years) performed a symptom-limited exercise test with respiratory gas measurements (CPX). From the respiratory gas analysis, peak O(2) uptake (VO(2)), the slope of the increase in VO(2) to the increase in work rate (DeltaVO (2)/DeltaWR), and the slope of the increase in ventilation to the increase in CO(2) output (VE/VCO(2) slope) were calculated. Oxyhemoglobin (O(2)Hb) at the forehead was monitored using near-infrared spectroscopy. The brain ischemic score was counted based upon fluid-attenuated inversion recovery images of magnetic resonance imaging and expressed from 0 to 4. When compared with patients with a lower ischemic score (<2, n=67), those with a higher ischemic score (> or =2, n=42) had a lower increase in brain O(2)Hb during exercise (-1.08 +/-2.7 vs 0.77+/-4.1 micromol/L, p=0.011). Of brain ischemic score, left ventricular ejection fraction, peak VO(2), DeltaVO(2)/DeltaWR, and the VE/VCO(2) slope, DeltaVO(2)/ DeltaWR was found to be the sole independent index determining cerebral O(2)Hb during exercise. The CPX parameters were also significantly related to the degree of cerebrovascular arteriosclerosis. CONCLUSIONS Although cerebral oxygenation during exercise is mainly related to cardiopulmonary function, the degree of cerebrovascular arteriosclerosis partly influences cerebral oxygenation in patients with risk factors for atherosclerosis.
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