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Takamura Y, Kaneko T, Kagiyama N, Dotare T, Sunayama T, Nakade T, Murata A, Endo H, Kuroda S, Matsue Y, Obokata M, Minamino T. Mixed-type Dyspnoea Diagnosed via Non-invasive and Invasive Cardiopulmonary Exercise Tests. Intern Med 2024; 63:1733-1737. [PMID: 37926539 DOI: 10.2169/internalmedicine.2659-23] [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] [Indexed: 11/07/2023] Open
Abstract
A gas exchange analysis with the cardiopulmonary exercise test is effective in discriminating non-cardiogenic components of limited exercise tolerance and is important for use in combination with the diastolic stress test. An 80-year-old woman with progressive exertional dyspnoea, hypertension, and untreated bronchial asthma was diagnosed with heart failure with a preserved ejection fraction by invasive testing. Diuretics were initiated, which resulted in partial symptom improvement. A subsequent non-invasive test revealed a reduced breathing reserve, suggesting exertional dyspnoea complications linked to lung disease. Bronchodilators were administered, which further improved the symptoms.
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Affiliation(s)
- Yuta Takamura
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Japan
| | - Tomohiro Kaneko
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Japan
| | - Nobuyuki Kagiyama
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Japan
| | - Taishi Dotare
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Japan
| | - Tsutomu Sunayama
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Japan
| | - Taisuke Nakade
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Japan
| | - Azusa Murata
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Japan
| | - Hirohisa Endo
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Japan
| | - Shunsuke Kuroda
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Japan
| | - Yuya Matsue
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Japan
| | - Masaru Obokata
- Department of Cardiovascular Medicine, Gunma University Graduate School of Medicine, Japan
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Japan
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2
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Hoedemakers S, Pugliese NR, Stassen J, Vanoppen A, Claessens J, Gojevic T, Bekhuis Y, Falter M, Moura Ferreira S, Dhont S, De Biase N, Del Punta L, Di Fiore V, De Carlo M, Giannini C, Colli A, Dulgheru RE, Geers J, Yilmaz A, Claessen G, Bertrand P, Droogmans S, Lancellotti P, Cosyns B, Verbrugge FH, Herbots L, Masi S, Verwerft J. mPAP/CO Slope and Oxygen Uptake Add Prognostic Value in Aortic Stenosis. Circulation 2024; 149:1172-1182. [PMID: 38410954 DOI: 10.1161/circulationaha.123.067130] [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: 09/14/2023] [Accepted: 02/01/2024] [Indexed: 02/28/2024]
Abstract
BACKGROUND Recent guidelines redefined exercise pulmonary hypertension as a mean pulmonary artery pressure/cardiac output (mPAP/CO) slope >3 mm Hg·L-1·min-1. A peak systolic pulmonary artery pressure >60 mm Hg during exercise has been associated with an increased risk of cardiovascular death, heart failure rehospitalization, and aortic valve replacement in aortic valve stenosis. The prognostic value of the mPAP/CO slope in aortic valve stenosis remains unknown. METHODS In this prospective cohort study, consecutive patients (n=143; age, 73±11 years) with an aortic valve area ≤1.5 cm2 underwent cardiopulmonary exercise testing with echocardiography. They were subsequently evaluated for the occurrence of cardiovascular events (ie, cardiovascular death, heart failure hospitalization, new-onset atrial fibrillation, and aortic valve replacement) during a follow-up period of 1 year. Findings were externally validated (validation cohort, n=141). RESULTS One cardiovascular death, 32 aortic valve replacements, 9 new-onset atrial fibrillation episodes, and 4 heart failure hospitalizations occurred in the derivation cohort, whereas 5 cardiovascular deaths, 32 aortic valve replacements, 1 new-onset atrial fibrillation episode, and 10 heart failure hospitalizations were observed in the validation cohort. Peak aortic velocity (odds ratio [OR] per SD, 1.48; P=0.036), indexed left atrial volume (OR per SD, 2.15; P=0.001), E/e' at rest (OR per SD, 1.61; P=0.012), mPAP/CO slope (OR per SD, 2.01; P=0.002), and age-, sex-, and height-based predicted peak exercise oxygen uptake (OR per SD, 0.59; P=0.007) were independently associated with cardiovascular events at 1 year, whereas peak systolic pulmonary artery pressure was not (OR per SD, 1.28; P=0.219). Peak Vo2 (percent) and mPAP/CO slope provided incremental prognostic value in addition to indexed left atrial volume and aortic valve area (P<0.001). These results were confirmed in the validation cohort. CONCLUSIONS In moderate and severe aortic valve stenosis, mPAP/CO slope and percent-predicted peak Vo2 were independent predictors of cardiovascular events, whereas peak systolic pulmonary artery pressure was not. In addition to aortic valve area and indexed left atrial volume, percent-predicted peak Vo2 and mPAP/CO slope cumulatively improved risk stratification.
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Affiliation(s)
- Sarah Hoedemakers
- Departments of Cardiology (S.H., J.S., M.F., S.M.F., G.C., L.H., J.V.), Jessa Hospital, Hasselt, Belgium
- Faculty of Medicine and Life Sciences, UHasselt, Agoralaan, Diepenbeek, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
- Limburg Clinical Research Center (-MHU), Hasselt, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
- Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium (S.H., J.G., S.D., B.C., F.H.V.)
| | - Nicola Riccardo Pugliese
- Department of Clinical and Experimental Medicine, University of Pisa, Italy (N.R.P., N.D.B., L.D.P., V.D.F., S.M.)
| | - Jan Stassen
- Departments of Cardiology (S.H., J.S., M.F., S.M.F., G.C., L.H., J.V.), Jessa Hospital, Hasselt, Belgium
- Faculty of Medicine and Life Sciences, UHasselt, Agoralaan, Diepenbeek, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
- Limburg Clinical Research Center (-MHU), Hasselt, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
| | | | - Jade Claessens
- Department of Cardiothoracic Surgery (J.C., A.Y.), Jessa Hospital, Hasselt, Belgium
- Faculty of Medicine and Life Sciences, UHasselt, Agoralaan, Diepenbeek, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
- Limburg Clinical Research Center (-MHU), Hasselt, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
| | - Tin Gojevic
- Faculty of Medicine and Life Sciences, UHasselt, Agoralaan, Diepenbeek, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
- Limburg Clinical Research Center (-MHU), Hasselt, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
| | - Youri Bekhuis
- Faculty of Medicine and Life Sciences, UHasselt, Agoralaan, Diepenbeek, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
- Limburg Clinical Research Center (-MHU), Hasselt, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
- Faculty of Medicine, KU Leuven, Belgium (A.V., Y.B., M.F.)
| | - Maarten Falter
- Departments of Cardiology (S.H., J.S., M.F., S.M.F., G.C., L.H., J.V.), Jessa Hospital, Hasselt, Belgium
- Faculty of Medicine and Life Sciences, UHasselt, Agoralaan, Diepenbeek, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
- Limburg Clinical Research Center (-MHU), Hasselt, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
- Faculty of Medicine, KU Leuven, Belgium (A.V., Y.B., M.F.)
| | - Sara Moura Ferreira
- Departments of Cardiology (S.H., J.S., M.F., S.M.F., G.C., L.H., J.V.), Jessa Hospital, Hasselt, Belgium
- Faculty of Medicine and Life Sciences, UHasselt, Agoralaan, Diepenbeek, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
- Limburg Clinical Research Center (-MHU), Hasselt, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
| | - Sebastiaan Dhont
- Limburg Clinical Research Center (-MHU), Hasselt, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
- Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium (S.H., J.G., S.D., B.C., F.H.V.)
- Department of Cardiology, Ziekenhuis Oost-Limburg, Genk, Belgium (S.D., P.B.)
- Centrum voor Hart-en Vaatziekten, Universitair Ziekenhuis Brussel, Jette, Belgium (S.D., B.C., F.H.V.)
| | - Nicolò De Biase
- Department of Clinical and Experimental Medicine, University of Pisa, Italy (N.R.P., N.D.B., L.D.P., V.D.F., S.M.)
| | - Lavinia Del Punta
- Department of Clinical and Experimental Medicine, University of Pisa, Italy (N.R.P., N.D.B., L.D.P., V.D.F., S.M.)
| | - Valerio Di Fiore
- Department of Clinical and Experimental Medicine, University of Pisa, Italy (N.R.P., N.D.B., L.D.P., V.D.F., S.M.)
| | - Marco De Carlo
- Cardiac, Thoracic and Vascular Department, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy (M.D.C., C.G., A.C.)
| | - Cristina Giannini
- Cardiac, Thoracic and Vascular Department, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy (M.D.C., C.G., A.C.)
| | - Andrea Colli
- Cardiac, Thoracic and Vascular Department, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy (M.D.C., C.G., A.C.)
| | - Raluca Elena Dulgheru
- Department of Cardiology, University Hospital of Liège, GIGA Cardiovascular Sciences, Liège, Belgium (R.E.D., P.L.)
| | - Jolien Geers
- Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium (S.H., J.G., S.D., B.C., F.H.V.)
| | - Alaaddin Yilmaz
- Department of Cardiothoracic Surgery (J.C., A.Y.), Jessa Hospital, Hasselt, Belgium
| | - Guido Claessen
- Departments of Cardiology (S.H., J.S., M.F., S.M.F., G.C., L.H., J.V.), Jessa Hospital, Hasselt, Belgium
- Faculty of Medicine and Life Sciences, UHasselt, Agoralaan, Diepenbeek, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
- Limburg Clinical Research Center (-MHU), Hasselt, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
| | - Philippe Bertrand
- Faculty of Medicine and Life Sciences, UHasselt, Agoralaan, Diepenbeek, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
- Limburg Clinical Research Center (-MHU), Hasselt, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
- Department of Cardiology, Ziekenhuis Oost-Limburg, Genk, Belgium (S.D., P.B.)
| | - Steven Droogmans
- Faculty of Medicine and Life Sciences, UHasselt, Agoralaan, Diepenbeek, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
| | - Patrizio Lancellotti
- Department of Cardiology, University Hospital of Liège, GIGA Cardiovascular Sciences, Liège, Belgium (R.E.D., P.L.)
- Gruppo Villa Maria Care and Research, Maria Cecilia Hospital, Cotignola, and Anthea Hospital, Bari, Italy (P.L.)
| | - Bernard Cosyns
- Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium (S.H., J.G., S.D., B.C., F.H.V.)
- Centrum voor Hart-en Vaatziekten, Universitair Ziekenhuis Brussel, Jette, Belgium (S.D., B.C., F.H.V.)
| | - Frederik H Verbrugge
- Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium (S.H., J.G., S.D., B.C., F.H.V.)
- Centrum voor Hart-en Vaatziekten, Universitair Ziekenhuis Brussel, Jette, Belgium (S.D., B.C., F.H.V.)
| | - Lieven Herbots
- Departments of Cardiology (S.H., J.S., M.F., S.M.F., G.C., L.H., J.V.), Jessa Hospital, Hasselt, Belgium
- Faculty of Medicine and Life Sciences, UHasselt, Agoralaan, Diepenbeek, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
- Limburg Clinical Research Center (-MHU), Hasselt, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
| | - Stefano Masi
- Department of Clinical and Experimental Medicine, University of Pisa, Italy (N.R.P., N.D.B., L.D.P., V.D.F., S.M.)
| | - Jan Verwerft
- Departments of Cardiology (S.H., J.S., M.F., S.M.F., G.C., L.H., J.V.), Jessa Hospital, Hasselt, Belgium
- Faculty of Medicine and Life Sciences, UHasselt, Agoralaan, Diepenbeek, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
- Limburg Clinical Research Center (-MHU), Hasselt, Belgium (S.H., J.S., J.C., T.G., Y.B., M.F., S.M.F., S.D., G.C., P.B., L.H., J.V.)
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3
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Kirupaharan P, Lane J, Melillo C, Paul D, Amoushref A, Abdi SA, Tonelli AR. Impact of body position on hemodynamic measurements during exercise: A tale of two bikes. Pulm Circ 2024; 14:e12334. [PMID: 38223421 PMCID: PMC10784616 DOI: 10.1002/pul2.12334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/06/2023] [Accepted: 12/22/2023] [Indexed: 01/16/2024] Open
Abstract
The addition of exercise testing during right heart catheterization (RHC) is often required to accurately diagnose causes of exercise intolerance like early pulmonary vascular disease, occult left heart disease, and preload insufficiency. We tested the influence of body position (supine vs. seated) on hemodynamic classification both at rest and during exercise. We enrolled patients with exercise intolerance due to dyspnea who were referred for exercise RHC at the Cleveland Clinic. Patients were randomized (1:1) to exercise in seated or supine position to a goal of 60 W followed by maximal exercise in the alternate position. We analyzed 17 patients aged 60.3 ± 10.9 years, including 13 females. At rest in the sitting position, patients had significantly lower right atrial pressure (RAP), mean pulmonary artery pressure (mPAP), pulmonary artery wedge pressure (PAWP) and cardiac index (CI). In every stage of exercise (20, 40, and 60 W), the RAP, mPAP, and PAWP were lower in the sitting position. Exercise in the sitting position allowed the identification of preload insufficiency in nine patients. Exercise in either position increased the identification of postcapillary pulmonary hypertension (PH). Body position significantly influences hemodynamics at rest and with exercise; however, mPAP/CO and PAWP/CO were not positionally affected. Hemodynamic measurements in the seated position allowed the detection of preload insufficiency, a condition that was predominantly identified as no PH during supine exercise.
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Affiliation(s)
- Pradhab Kirupaharan
- Department of Pulmonary, Allergy, and Critical Care Medicine, Respiratory InstituteCleveland ClinicClevelandOhioUSA
| | - James Lane
- Department of Pulmonary, Allergy, and Critical Care Medicine, Respiratory InstituteCleveland ClinicClevelandOhioUSA
| | - Celia Melillo
- Department of Pulmonary, Allergy, and Critical Care Medicine, Respiratory InstituteCleveland ClinicClevelandOhioUSA
| | - Deborah Paul
- Department of Pulmonary, Allergy, and Critical Care Medicine, Respiratory InstituteCleveland ClinicClevelandOhioUSA
| | - Alla Amoushref
- Department of Nephrology, Glickman Urological & Kidney InstituteCleveland ClinicClevelandOhioUSA
| | - Sami Al Abdi
- Department of Internal MedicineCleveland Clinic Fairview HospitalFairviewOhioUSA
| | - Adriano R. Tonelli
- Department of Pulmonary, Allergy, and Critical Care Medicine, Respiratory InstituteCleveland ClinicClevelandOhioUSA
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4
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Baratto C, Caravita S, Soranna D, Dewachter C, Bondue A, Zambon A, Badano LP, Parati G, Vachiéry J. Exercise haemodynamics in heart failure with preserved ejection fraction: a systematic review and meta-analysis. ESC Heart Fail 2022; 9:3079-3091. [PMID: 35748109 PMCID: PMC9715813 DOI: 10.1002/ehf2.13979] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 04/08/2022] [Accepted: 05/08/2022] [Indexed: 11/08/2022] Open
Abstract
AIMS Exercise right heart catheterization (RHC) is considered the gold-standard test to diagnose heart failure with preserved ejection fraction (HFpEF). However, exercise RHC is an insufficiently standardized technique, and current haemodynamic thresholds to define HFpEF are not universally accepted. We sought to describe the exercise haemodynamics profile of HFpEF cohorts reported in literature, as compared with control subjects. METHODS AND RESULTS We performed a systematic literature review until December 2020. Studies reporting pulmonary artery wedge pressure (PAWP) at rest and peak exercise were extracted. Summary estimates of all haemodynamic variables were evaluated, stratified according to body position (supine/upright exercise). The PAWP/cardiac output (CO) slope during exercise was extrapolated. Twenty-seven studies were identified, providing data for 2180 HFpEF patients and 682 controls. At peak exercise, patients with HFpEF achieved higher PAWP (30 [29-31] vs. 16 [15-17] mmHg, P < 0.001) and mean right atrial pressure (P < 0.001) than controls. These differences persisted after adjustment for age, sex, body mass index, and body position. However, peak PAWP values were highly heterogeneous among the cohorts (I2 = 93%), with a relative overlap with controls. PAWP/CO slope was steeper in HFpEF than in controls (3.75 [3.20-4.28] vs. 0.95 [0.30-1.59] mmHg/L/min, P value < 0.0001), even after adjustment for covariates (P = 0.007). CONCLUSIONS Despite methodological heterogeneity, as well as heterogeneity of pooled haemodynamic estimates, the exercise haemodynamic profile of HFpEF patients is consistent across studies and characterized by a steep PAWP rise during exercise. More standardization of exercise haemodynamics may be advisable for a wider application in clinical practice.
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Affiliation(s)
- Claudia Baratto
- Department of Cardiovascular, Neural and Metabolic SciencesIstituto Auxologico Italiano IRCCS, Ospedale San LucaMilanItaly
- Department of CardiologyHopital Universitaire de Bruxelles, Hôpital Académique Erasme808 Route de Lennik1070BruxellesBelgium
| | - Sergio Caravita
- Department of Cardiovascular, Neural and Metabolic SciencesIstituto Auxologico Italiano IRCCS, Ospedale San LucaMilanItaly
- Department of Management, Information and Production EngineeringUniversity of BergamoDalmineItaly
| | - Davide Soranna
- Biostatistics UnitIRCCS Istituto Auxologico ItalianoMilanItaly
| | - Céline Dewachter
- Department of CardiologyHopital Universitaire de Bruxelles, Hôpital Académique Erasme808 Route de Lennik1070BruxellesBelgium
| | - Antoine Bondue
- Department of CardiologyHopital Universitaire de Bruxelles, Hôpital Académique Erasme808 Route de Lennik1070BruxellesBelgium
| | - Antonella Zambon
- Biostatistics UnitIRCCS Istituto Auxologico ItalianoMilanItaly
- Department of Statistic and Quantitative MethodsUniversity of Milano‐BicoccaMilanItaly
| | - Luigi P. Badano
- Department of Cardiovascular, Neural and Metabolic SciencesIstituto Auxologico Italiano IRCCS, Ospedale San LucaMilanItaly
- Department of Medicine and SurgeryUniversity of Milano‐BicoccaMilanItaly
| | - Gianfranco Parati
- Department of Cardiovascular, Neural and Metabolic SciencesIstituto Auxologico Italiano IRCCS, Ospedale San LucaMilanItaly
- Department of Medicine and SurgeryUniversity of Milano‐BicoccaMilanItaly
| | - Jean‐Luc Vachiéry
- Department of CardiologyHopital Universitaire de Bruxelles, Hôpital Académique Erasme808 Route de Lennik1070BruxellesBelgium
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5
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Berlier C, Saxer S, Lichtblau M, Schneider SR, Schwarz EI, Furian M, Bloch KE, Carta AF, Ulrich S. Influence of Upright Versus Supine Position on Resting and Exercise Hemodynamics in Patients Assessed for Pulmonary Hypertension. J Am Heart Assoc 2022; 11:e023839. [PMID: 35156392 PMCID: PMC9245795 DOI: 10.1161/jaha.121.023839] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background
The aim of the present work was to study the influence of body position on resting and exercise pulmonary hemodynamics in patients assessed for pulmonary hypertension (PH).
Methods and Results
Data from 483 patients with suspected PH undergoing right heart catheterization for clinical indications (62% women, age 61±15 years, 246 precapillary PH, 48 postcapillary PH, 106 exercise PH, 83 no PH) were analyzed; 213 patients (main cohort, years 2016–2018) were examined at rest in upright (45°) and supine position, such as under upright exercise. Upright exercise hemodynamics were compared with 270 patients (historical cohort) undergoing supine exercise with the same protocol. Upright versus supine resting data revealed a lower mean pulmonary artery pressure 31±14 versus 32±13 mm Hg, pulmonary artery wedge pressure 11±4 versus 12±5 mm Hg, and cardiac index 2.9±0.7 versus 3.1±0.8 L/min per m
2
, and higher pulmonary vascular resistance 4.1±3.1 versus 3.9±2.8 Wood
P
<0.001. Exercise data upright versus supine revealed higher work rates (53±26 versus 33±22 watt), and adjusting for differences in work rate and baseline values, higher end‐exercise mean pulmonary artery pressure (52±19 versus 45±16 mm Hg,
P
=0.001), similar pulmonary artery wedge pressure and cardiac index, higher pulmonary vascular resistance (5.4±3.7 versus 4.5±3.4 Wood units,
P
=0.002), and higher mean pulmonary artery pressure/cardiac output (7.9±4.7 versus 7.1±4.1 Wood units,
P
=0.001).
Conclusions
Body position significantly affects resting and exercise pulmonary hemodynamics with a higher pulmonary vascular resistance of about 10% in upright versus supine position at rest and end‐exercise, and should be considered and reported when assessing PH.
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Affiliation(s)
- Charlotte Berlier
- Department of Pulmonology University Hospital Zürich Zürich Switzerland
| | - Stéphanie Saxer
- Department of Pulmonology University Hospital Zürich Zürich Switzerland
| | - Mona Lichtblau
- Department of Pulmonology University Hospital Zürich Zürich Switzerland
| | | | - Esther I. Schwarz
- Department of Pulmonology University Hospital Zürich Zürich Switzerland
| | - Michael Furian
- Department of Pulmonology University Hospital Zürich Zürich Switzerland
| | - Konrad E. Bloch
- Department of Pulmonology University Hospital Zürich Zürich Switzerland
- Centre for Integrative Human PhysiologyUniversity of Zürich Zürich Switzerland
| | | | - Silvia Ulrich
- Department of Pulmonology University Hospital Zürich Zürich Switzerland
- Centre for Integrative Human PhysiologyUniversity of Zürich Zürich Switzerland
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6
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Wan X, Liu C, Olson TP, Chen X, Lu W, Jiang W. Differences in Peak Oxygen Uptake in Bicycle Exercise Test Caused by Body Positions: A Meta-Analysis. Front Cardiovasc Med 2021; 8:734687. [PMID: 34708089 PMCID: PMC8542763 DOI: 10.3389/fcvm.2021.734687] [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: 07/01/2021] [Accepted: 09/13/2021] [Indexed: 11/13/2022] Open
Abstract
Background: As demand for cardiopulmonary exercise test using a supine position has increased, so have the testing options. However, it remains uncertain whether the existing evaluation criteria for the upright position are suitable for the supine position. The purpose of this meta-analysis is to compare the differences in peak oxygen uptake (VO2peak) between upright and supine lower extremity bicycle exercise. Methods: We searched PubMed, Web Of Science and Embase from inception to March 27, 2021. Self-control studies comparing VO2peak between upright and supine were included. The quality of the included studies was assessed using a checklist adapted from published papers in this field. The effect of posture on VO2peak was pooled using random/fixed effects model. Results: This meta-analysis included 32 self-control studies, involving 546 participants (63% were male). 21 studies included only healthy people, 9 studies included patients with cardiopulmonary disease, and 2 studies included both the healthy and cardiopulmonary patients. In terms of study quality, most of the studies (n = 21, 66%) describe the exercise protocol, and we judged theVO2peak to be valid in 26 (81%) studies. Meta-analysis showed that the upright VO2peak exceeded the supine VO2peak [relative VO2peak: mean difference (MD) 2.63 ml/kg/min, 95% confidence interval (CI) 1.66-3.59, I 2 = 56%, p < 0.05; absolute VO2peak: MD 0.18 L/min, 95% CI 0.10-0.26, I 2 = 63%, p < 0.05). Moreover, subgroup analysis showed there was more pooled difference in healthy people (4.04 ml/kg/min or 0.22 L/min) than in cardiopulmonary patients (1.03 ml/kg/min or 0.12 L/min). Conclusion: VO2peak in the upright position is higher than that in supine position. However, whether this difference has clinical significance needs further verification. Systematic Review Registration: identifier, CRD42021233468.
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Affiliation(s)
- Xiaohua Wan
- Department of Cardiology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China.,The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chang Liu
- Department of Cardiology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China.,The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Thomas P Olson
- Division of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic and Foundation, Rochester, MN, United States
| | - Xiankun Chen
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,Healthy Systems and Policy, Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden.,Key Unit of Methodology in Clinical Research, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
| | - Weihui Lu
- Department of Cardiology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China.,The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wei Jiang
- Department of Cardiology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China.,The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangdong Provincial Key Laboratory of Chinese Medicine for Prevention and Treatment of Refractory Chronic Diseases, Guangzhou, China
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7
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Forton K, Motoji Y, Caravita S, Faoro V, Naeije R. Exercise stress echocardiography of the pulmonary circulation and right ventricular-arterial coupling in healthy adolescents. Eur Heart J Cardiovasc Imaging 2021; 22:688-694. [PMID: 32380528 DOI: 10.1093/ehjci/jeaa085] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 03/14/2020] [Accepted: 04/04/2020] [Indexed: 11/12/2022] Open
Abstract
AIMS To explore the effects of age and sex in adolescents vs. young or middle-aged adults on pulmonary vascular function and right ventricular-arterial (RV-PA) coupling as assessed by exercise stress echocardiography. METHODS AND RESULTS Forty healthy adolescents aged 12-15 years were compared with 40 young adults aged 17-22 years and 40 middle-aged adults aged 30-50 years. Sex distribution was equal in the three groups. All the subjects underwent an exercise stress echocardiography. A pulmonary vascular distensibility coefficient α was determined from multipoint pulmonary vascular pressure-flow relationships. RV-PA coupling was assessed by the tricuspid annular plane systolic excursion (TAPSE) to systolic pulmonary artery pressure (PASP) ratio, who has been previously validated by invasive study. While cardiac index and mean PAP were not different, adolescents compared to young and middle-aged adults, respectively had higher pulmonary vascular distensibility coefficients α (1.60 ± 0.31%/mmHg vs. 1.39 ± 0.29%/mmHg vs. 1.20 ± 0.35%/mmHg, P < 0.00001). Adolescents and young adults compared to middle-aged adults, respectively had higher TAPSE/PASP ratios at rest (1.24 ± 0.18 mm/mmHg and 1.22 ± 0.17 mm/mmHg vs. 1.07 ± 0.18 mm/mmHg, P < 0.008) and during exercise (0.86 ± 0.24, 0.80 ± 0.15 and 0.72 ± 0.15 mm/mmHg, P < 0.04). The TAPSE/PASP ratio decreased with exercise. There were no sex differences in α or TAPSE/PASP. CONCLUSION Compared to adults, adolescents present with a sex-independent more distensible pulmonary circulation. Resting and exercise RV-PA coupling is decreased in middle-aged adults.
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Affiliation(s)
- Kevin Forton
- Faculty of Motor Sciences, Cardio-Pulmonary Exercise Laboratory, Université Libre de Bruxelles, Erasmus Campus CP 604, 808 Lennik Road, 1070 Brussels, Belgium.,Department of Cardiology, Erasmus University Hospital, 1070 Brussels, Belgium
| | - Yoshiki Motoji
- Faculty of Motor Sciences, Cardio-Pulmonary Exercise Laboratory, Université Libre de Bruxelles, Erasmus Campus CP 604, 808 Lennik Road, 1070 Brussels, Belgium.,Department of Cardiology, Erasmus University Hospital, 1070 Brussels, Belgium
| | - Sergio Caravita
- Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano IRCCS Ospedale San Luca, Piazzale Brescia 20, 20149 Milano, Italy.,Department of Management, Information and Production Engineering, University of Bergamo, Viale G. Marconi, 5, 24044 Dalmine (BG), Italy
| | - Vitalie Faoro
- Faculty of Motor Sciences, Cardio-Pulmonary Exercise Laboratory, Université Libre de Bruxelles, Erasmus Campus CP 604, 808 Lennik Road, 1070 Brussels, Belgium
| | - Robert Naeije
- Faculty of Motor Sciences, Cardio-Pulmonary Exercise Laboratory, Université Libre de Bruxelles, Erasmus Campus CP 604, 808 Lennik Road, 1070 Brussels, Belgium
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8
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Implication of Blood Rheology and Pulmonary Hemodynamics on Exercise-Induced Hypoxemia at Sea Level and Altitude in Athletes. Int J Sport Nutr Exerc Metab 2021; 31:397-405. [PMID: 34303308 DOI: 10.1123/ijsnem.2021-0013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 05/10/2021] [Accepted: 05/11/2021] [Indexed: 11/18/2022]
Abstract
This study aimed to investigate the changes in blood viscosity, pulmonary hemodynamics, nitric oxide (NO) production, and maximal oxygen uptake (V˙O2max) during a maximal incremental test conducted in normoxia and during exposure to moderate altitude (2,400 m) in athletes exhibiting exercise-induced hypoxemia at sea level (EIH). Nine endurance athletes with EIH and eight without EIH (NEIH) performed a maximal incremental test under three conditions: sea level, 1 day after arrival in hypoxia, and 5 days after arrival in hypoxia (H5) at 2,400 m. Gas exchange and oxygen peripheral saturation (SpO2) were continuously monitored. Cardiac output, pulmonary arterial pressure, and total pulmonary vascular resistance were assessed by echocardiography. Venous blood was sampled before and 3 min after exercise cessation to analyze blood viscosity and NO end-products. At sea level, athletes with EIH exhibited an increase in blood viscosity and NO levels during exercise while NEIH athletes showed no change. Pulmonary hemodynamics and aerobic performance were not different between the two groups. No between-group differences in blood viscosity, pulmonary hemodynamics, and V˙O2max were found at 1 day after arrival in hypoxia. At H5, lower total pulmonary vascular resistance and greater NO concentration were reported in response to exercise in EIH compared with NEIH athletes. EIH athletes had greater cardiac output and lower SpO2 at maximal exercise in H5, but no between-group differences occurred regarding blood viscosity and V˙O2max. The pulmonary vascular response observed at H5 in EIH athletes may be involved in the greater cardiac output of EIH group and counterbalanced the drop in SpO2 in order to achieve similar V˙O2max than NEIH athletes.
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9
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Abstract
Exercise intolerance is the dominant symptom of pulmonary hypertension (PH). The gold standard for the estimation of exercise capacity is a cycle ergometer incremental cardiopulmonary exercise test (CPET). The main clinical variables generated by a CPET are peak oxygen uptake (Vo2peak), ventilatory equivalents for carbon dioxide (VE/Vco2), systolic blood pressure, oxygen (O2) pulse, and chronotropic responses. PH is associated with hyperventilation at rest and at exercise, and an increase in physiologic dead space. Maximal cardiac output depends on right ventricular function and critically determines a PH patient's exercise capacity. Dynamic arterial O2 desaturation can also depress the Vo2peak.
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10
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Baratto C, Caravita S, Soranna D, Faini A, Dewachter C, Zambon A, Perego GB, Bondue A, Senni M, Badano LP, Parati G, Vachiéry JL. Current Limitations of Invasive Exercise Hemodynamics for the Diagnosis of Heart Failure With Preserved Ejection Fraction. Circ Heart Fail 2021; 14:e007555. [PMID: 33951935 DOI: 10.1161/circheartfailure.120.007555] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Exercise hemodynamics can differentiate heart failure with preserved ejection fraction (HFpEF) from noncardiac dyspnea. However, respiratory pressure swings may impact hemodynamic measurements, potentially leading to misdiagnosis of HFpEF. Moreover, threshold values for abnormal hemodynamic response indicative of HFpEF are not universally accepted. Thus, we sought to evaluate the impact of respiratory pressure swings on hemodynamic data interpretation as well as the concordance among 3 proposed exercise hemodynamic criteria for HFpEF: (1) end-expiratory pulmonary artery wedge pressure (PAWPexp) ≥25 mm Hg; (2) PAWPexp/cardiac output slope >2 mm Hg/L per minute; and (3) respiratory-averaged (avg) mean pulmonary artery pressure >30 mm Hg, total pulmonary resistanceavg >3 WU, PAWPavg ≥20 mm Hg. METHODS Fifty-seven patients with unexplained dyspnea (70% women, 70±9 years) underwent exercise cardiac catheterization. The difference between end-expiratory and averaged hemodynamic values, as well as the concordance among the 3 hemodynamic definitions of HFpEF, were assessed. RESULTS End-expiratory hemodynamics measurements were higher than values averaged across the respiratory cycle. During exercise, a larger proportion of patients exceeded the threshold of 25 mm Hg for PAWPexp rather than for PAWPavg (70% versus 53%, P<0.01). The concordance of 3/3 HFpEF exercise hemodynamic criteria was recorded in 70% of patients. PAWPexp/cardiac output slope identified HFpEF more frequently than the other 2 criteria (81% versus 64% to 69%), incorporating over 97% of abnormal responses to the latter. Patients with 3/3 positive criteria had worse clinical, gas-exchange, and hemodynamic profiles. CONCLUSIONS Respiratory pressure swings impact on the exercise hemodynamic definitions of HFpEF that provide discordant results in 30% of patients. Equivocal diagnoses of HFpEF might be limited by adopting the most sensitive and inclusive criterion alone (ie, PAWPexp/cardiac output slope).
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Affiliation(s)
- Claudia Baratto
- Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano IRCCS, Ospedale San Luca, Milano, Italy (C.B., S.C., A.F., G.B.P., L.P.B., G.P.).,Department of Medicine and Surgery (C.B., L.P.B., G.P.), University of Milano-Bicocca, Italy
| | - Sergio Caravita
- Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano IRCCS, Ospedale San Luca, Milano, Italy (C.B., S.C., A.F., G.B.P., L.P.B., G.P.).,Department of Management, Information and Production Engineering, University of Bergamo, Dalmine, Italy (S.C.)
| | - Davide Soranna
- IRCCS Istituto Auxologico Italiano, Biostatistics Unit, Milan, Italy (D.S., A.Z.)
| | - Andrea Faini
- Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano IRCCS, Ospedale San Luca, Milano, Italy (C.B., S.C., A.F., G.B.P., L.P.B., G.P.)
| | - Céline Dewachter
- Department of Cardiology, Cliniques Universitaires de Bruxelles, Hôpital Académique Erasme, Belgium (C.D., A.B., J.-L.V.)
| | - Antonella Zambon
- Department of Statistic and Quantitative Methods (A.Z.), University of Milano-Bicocca, Italy.,IRCCS Istituto Auxologico Italiano, Biostatistics Unit, Milan, Italy (D.S., A.Z.)
| | - Giovanni Battista Perego
- Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano IRCCS, Ospedale San Luca, Milano, Italy (C.B., S.C., A.F., G.B.P., L.P.B., G.P.)
| | - Antoine Bondue
- Department of Cardiology, Cliniques Universitaires de Bruxelles, Hôpital Académique Erasme, Belgium (C.D., A.B., J.-L.V.)
| | - Michele Senni
- Cardiovascular Department, ASST Papa Giovanni XXIII, Bergamo, Italy (M.S.)
| | - Luigi P Badano
- Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano IRCCS, Ospedale San Luca, Milano, Italy (C.B., S.C., A.F., G.B.P., L.P.B., G.P.).,Department of Medicine and Surgery (C.B., L.P.B., G.P.), University of Milano-Bicocca, Italy
| | - Gianfranco Parati
- Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano IRCCS, Ospedale San Luca, Milano, Italy (C.B., S.C., A.F., G.B.P., L.P.B., G.P.).,Department of Medicine and Surgery (C.B., L.P.B., G.P.), University of Milano-Bicocca, Italy
| | - Jean-Luc Vachiéry
- Department of Cardiology, Cliniques Universitaires de Bruxelles, Hôpital Académique Erasme, Belgium (C.D., A.B., J.-L.V.)
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11
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Dillon HT, Dausin C, Claessen G, Lindqvist A, Mitchell A, Wright L, Willems R, La Gerche A, Howden EJ. The effect of posture on maximal oxygen uptake in active healthy individuals. Eur J Appl Physiol 2021; 121:1487-1498. [PMID: 33638017 DOI: 10.1007/s00421-021-04630-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 02/05/2021] [Indexed: 11/28/2022]
Abstract
PURPOSE Semi-supine and supine cardiopulmonary exercise testing (CPET) with concurrent cardiac imaging has emerged as a valuable tool for evaluating patients with cardiovascular disease. Yet, it is unclear how posture effects CPET measures. We aimed to discern the effect of posture on maximal oxygen uptake (VO2max) and its determinants using three clinically relevant cycle ergometers. METHODS In random order, 10 healthy, active males (Age 27 ± 7 years; BMI 23 ± 2 kg m2) underwent a ramp CPET and subsequent constant workload verification test performed at 105% peak ramp power to quantify VO2max on upright, semi-supine and supine cycle ergometers. Doppler echocardiography was conducted at peak exercise to measure stroke volume (SV) which was multiplied by heart rate (HR) to calculate cardiac output (CO). RESULTS Compared to upright (46.8 ± 11.2 ml/kg/min), VO2max was progressively reduced in semi-supine (43.8 ± 10.6 ml/kg/min) and supine (38.2 ± 9.3 ml/kg/min; upright vs. semi-supine vs. supine; all p ≤ 0.005). Similarly, peak power was highest in upright (325 ± 80 W), followed by semi-supine (298 ± 72 W) and supine (200 ± 51 W; upright vs. semi-supine vs. supine; all p < 0.01). Peak HR decreased progressively from upright to semi-supine to supine (186 ± 11 vs. 176 ± 13 vs. 169 ± 12 bpm; all p < 0.05). Peak SV and CO were lower in supine relative to semi-supine and upright (82 ± 22 vs. 92 ± 26 vs. 91 ± 24 ml and 14 ± 3 vs. 16 ± 4 vs. 17 ± 4 l/min; all p < 0.01), but not different between semi-supine and upright. CONCLUSION VO2max is progressively reduced in reclined postures. Thus, posture should be considered when comparing VO2max results between different testing modalities.
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Affiliation(s)
- Hayley T Dillon
- Sports Cardiology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, 3004, Australia.,Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia
| | - Christophe Dausin
- Exercise Physiology Research Group, Department of Movement Sciences, KU Leuven, Leuven, Belgium
| | - Guido Claessen
- Sports Cardiology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, 3004, Australia.,Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
| | - Anniina Lindqvist
- Sports Cardiology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, 3004, Australia
| | - Amy Mitchell
- Sports Cardiology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, 3004, Australia
| | - Leah Wright
- Sports Cardiology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, 3004, Australia
| | - Rik Willems
- Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
| | - André La Gerche
- Sports Cardiology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, 3004, Australia.,National Centre for Sports Cardiology, St Vincent's Hospital Melbourne, Fitzroy, Australia
| | - Erin J Howden
- Sports Cardiology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, 3004, Australia.
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Beaumont AJ, Forrest LJ, Unnithan V, Sculthorpe N. Cardiovascular responses during submaximal cycling with and without left-lateral tilting: insights for practical applications of stress echocardiography. Appl Physiol Nutr Metab 2020; 46:178-181. [PMID: 32846103 DOI: 10.1139/apnm-2020-0391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We investigated the cardiorespiratory responses to semi-supine exercise with (SS+45°) and without (SS-0°) a left-lateral tilt in 15 adults at fixed power output (70 W) and matched heart rates. At 70 W, oxygen uptake and heart rate reduced from upright to SS-0° then increased to SS+45° (p < 0.05). At matched heart rates, oxygen uptake and efficiency were lowest in SS+45° (p < 0.05). Left-lateral tilting should not be performed under the assumption that each position replicates the same cardiorespiratory responses. Novelty: Cardiorespiratory responses to exercise are influenced by left-lateral tilting, which should not be performed under the assumption that physiological responses are replicated between left-lateral positions.
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Affiliation(s)
- Alexander J Beaumont
- Institute of Clinical Exercise & Health Sciences, School of Science and Sport, University of the West of Scotland, Glasgow, G72 0LH, UK.,Institute of Clinical Exercise & Health Sciences, School of Science and Sport, University of the West of Scotland, Glasgow, G72 0LH, UK
| | - Laura J Forrest
- Institute of Clinical Exercise & Health Sciences, School of Science and Sport, University of the West of Scotland, Glasgow, G72 0LH, UK.,Institute of Clinical Exercise & Health Sciences, School of Science and Sport, University of the West of Scotland, Glasgow, G72 0LH, UK
| | - Viswanath Unnithan
- Institute of Clinical Exercise & Health Sciences, School of Science and Sport, University of the West of Scotland, Glasgow, G72 0LH, UK.,Institute of Clinical Exercise & Health Sciences, School of Science and Sport, University of the West of Scotland, Glasgow, G72 0LH, UK
| | - Nicholas Sculthorpe
- Institute of Clinical Exercise & Health Sciences, School of Science and Sport, University of the West of Scotland, Glasgow, G72 0LH, UK.,Institute of Clinical Exercise & Health Sciences, School of Science and Sport, University of the West of Scotland, Glasgow, G72 0LH, UK
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13
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Durand F, Gaston AF, Vicenzi M, Deboeck G, Subirats E, Faoro V. Noninvasive Pulmonary Hemodynamic Evaluation in Athletes With Exercise-Induced Hypoxemia. Chest 2020; 157:1568-1578. [PMID: 32081649 DOI: 10.1016/j.chest.2020.01.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 12/22/2019] [Accepted: 01/31/2020] [Indexed: 10/25/2022] Open
Abstract
BACKGROUND Pulmonary capillary stress failure is potentially involved in exercise-induced hypoxemia (ie, a significant fall in hemoglobin oxygen saturation [Spo2]) during sea level exercise in endurance-trained athletes. It is unknown whether there are specific properties of pulmonary vascular function in athletes exhibiting oxygen desaturation. METHODS Ten endurance-trained athletes with exercise-induced hypoxemia (EIH), nine endurance-trained athletes with no exercise-induced hypoxemia (NEIH), and 10 untrained control subjects underwent an incremental exercise stress echocardiography coupled with lung diffusion capacity for carbon monoxide (Dlco) and lung diffusion capacity for nitric oxide (Dlno) testing. Functional adaptation of the pulmonary circulation was evaluated with measurements of mean pulmonary arterial pressure (mPAP), pulmonary capillary pressure, pulmonary vascular resistance (PVR), cardiac output (Qc), and pulmonary vascular distensibility (alpha) mathematically determined from the curvilinearity of the multi-point mPAP/Qc relation. RESULTS EIH athletes exhibited a lower exercise-induced PVR decrease compared with the untrained and NEIH groups (P < .001). EIH athletes showed higher maximal mPAP compared with NEIH athletes (45.4 ± 0.9 mm Hg vs 41.6 ± 0.9 mm Hg, respectively; P = .003); there was no difference between the NEIH and untrained subjects. Alpha was lower in the EIH group compared with the NEIH group (P < .05). Maximal mPAP, Pcap, and alpha were correlated with the fall of Spo2 during exercise (P < .01, P < .01, and P < .05). Dlno and Dlco increased with exercise in all groups, with no differences between groups. Dlno/Qc was correlated to the exercise-induced Spo2 changes (P < .05). CONCLUSIONS EIH athletes exhibit higher maximal pulmonary vascular pressures, lower vascular distensibility, or exercise-induced changes in PVR compared with NEIH subjects, in keeping with pulmonary capillary stress failure or intrapulmonary shunting hypotheses.
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Affiliation(s)
- Fabienne Durand
- Laboratoire Européen Performance, Santé Altitude, EA4604-Université de Perpignan Via Domitia, Département STAPS, Font-Romeu, France; Catedra de medicina de muntanya I del medi natural I de simulacio clinica, Universitat de Girona, Girona, Spain.
| | - Anne-Fleur Gaston
- Laboratoire Européen Performance, Santé Altitude, EA4604-Université de Perpignan Via Domitia, Département STAPS, Font-Romeu, France; Unité de Physiologie des Exercices et Activités en Conditions Extrêmes, Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
| | - Marco Vicenzi
- Cardio-Pulmonary Exercise Laboratory, Faculty of Motorskill Science, Université Libre de Bruxelles, Brussels, Belgium; Cardiovascular Diseases Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Department of Clinical Sciences and Community Health, Milan, Italy
| | - Gael Deboeck
- Cardio-Pulmonary Exercise Laboratory, Faculty of Motorskill Science, Université Libre de Bruxelles, Brussels, Belgium
| | - Enric Subirats
- Laboratoire Européen Performance, Santé Altitude, EA4604-Université de Perpignan Via Domitia, Département STAPS, Font-Romeu, France; Catedra de medicina de muntanya I del medi natural I de simulacio clinica, Universitat de Girona, Girona, Spain
| | - Vitalie Faoro
- Cardio-Pulmonary Exercise Laboratory, Faculty of Motorskill Science, Université Libre de Bruxelles, Brussels, Belgium
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14
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Caravita S, Yerly P, Baratto C, Dewachter C, Faini A, Rimouche A, Branzi G, Perego GB, Bondue A, Parati G, Vachiéry JL. Noninvasive versus invasive pressure–flow relationship of the pulmonary circulation: bias and error. Eur Respir J 2019; 54:13993003.00881-2019. [DOI: 10.1183/13993003.00881-2019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 08/12/2019] [Indexed: 11/05/2022]
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15
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Singh I, Oliveira RKF, Naeije R, Rahaghi FN, Oldham WM, Systrom DM, Waxman AB. Pulmonary Vascular Distensibility and Early Pulmonary Vascular Remodeling in Pulmonary Hypertension. Chest 2019; 156:724-732. [PMID: 31121149 DOI: 10.1016/j.chest.2019.04.111] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/25/2019] [Accepted: 04/22/2019] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Exercise stress testing of the pulmonary circulation may uncover decreased pulmonary vascular (PV) distensibility as a cause of impaired aerobic exercise capacity and right ventricular (RV)-pulmonary arterial (PA) uncoupling. As such, it may help in the differential diagnosis of unexplained dyspnea, including pulmonary hypertension (PH) and/or heart failure with preserved ejection fraction (HFpEF). We investigated rest and exercise invasive pulmonary hemodynamics, ventilation, and gas exchange in patients with unexplained dyspnea, including 44 patients with HFpEF (of whom 20 had a normal pulmonary vascular resistance [PVR] during exercise [ie, passive HFpEF] and 24 had a higher than normal exercise PVR), 22 patients with exercise PH, 19 patients with pulmonary arterial hypertension (PAH), and 24 age- and sex-matched normal control subjects. METHODS A PV distensibility coefficient α (%/mm Hg) was determined from multipoint PV pressure-flow plots. RV-PA coupling was quantified from the analysis of RV pressure curves to determine ratios of end-systolic to arterial elastances (Ees/Ea). Aerobic exercise capacity was estimated by peak oxygen consumption. RESULTS The α coefficient decreased from 1.35 ± 0.58%/mm Hg in control subjects and 1.1 ± 0.48%/mm Hg in patients with passive HFpEF to 0.62 ± 0.32%/mm Hg in exercise PH, 0.54 ± 0.27%/mm Hg in HFpEF with high exercise PVR, and 0.18 ± 0.16%/mm Hg in PAH. On multivariate analysis, PV distensibility was associated with decreased Ees/Ea and maximal volume of oxygen consumed. CONCLUSIONS PV distensibility is an early and sensitive hemodynamic marker of PV disease that is associated with RV-PA uncoupling and decreased aerobic exercise capacity.
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Affiliation(s)
- Inderjit Singh
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Yale New Haven Hospital and Yale School of Medicine, New Haven, CT
| | - Rudolf K F Oliveira
- Division of Respiratory Medicine, Federal University of São Paulo - UNIFESP, São Paulo, Brazil
| | - Robert Naeije
- Department of Pathophysiology, Faculty of Medicine, Erasme Campus, Université Libre de Bruxelles, Brussels, Belgium
| | - Farbod N Rahaghi
- Division of Pulmonary and Critical Care, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - William M Oldham
- Division of Pulmonary and Critical Care, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - David M Systrom
- Division of Pulmonary and Critical Care, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Aaron B Waxman
- Division of Pulmonary and Critical Care, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA.
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16
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Santos LMH, Novaes APLD, Dantas FMDNA, Ribeiro LC, Castro CMMBD, França EETD. Acute effect of passive cycloergometry on the cardiovascular system and respiratory mechanics of critically ill patients: a randomized controlled trial. FISIOTERAPIA EM MOVIMENTO 2019. [DOI: 10.1590/1980-5918.032.ao32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Abstract Introduction: The rehabilitation of critical patients usually occurs in the bed and is classified as low cardiovascular intensity. Therefore, it is essential to understand the physiological effects of these resources that we apply in clinical practice. Objective: Evaluate the acute effect of passive cycloergometry of lower limbs on respiratory mechanics and cardiovascular parameters in critically ill patients. Method: This was a labeled, randomized, controlled trial conducted in two intensive care units in the city of Recife, between August 2016 and May 2017. Patients were divided into two groups: (i) passive cycloergometry group (n = 16), where the patient performed a lower limb cycloergometry session for 20 minutes, and (ii) control group (n = 14), where the patient did not perform any therapeutic intervention, except during the application of the protocol. Cardiovascular parameters and respiratory mechanics were evaluated before, during and after their applicability. Results: No demographic differences were found between the two groups, showing the homogeneity between them. Regarding cardiovascular parameters, there were no differences between groups before, during and after the protocol. Regarding respiratory mechanics, there was a slight elevation of the resistance of the respiratory system in the cycloergometry group and a reduction of the same in the control group. Conclusion: The results suggest that passive cycloergometry applied to the critical patient did not promote significant cardiovascular changes and respiratory mechanics, being considered a safe and effective technique in clinical practice that can be applied without causing harm to patients under mechanical ventilation.
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Mizumi S, Goda A, Takeuchi K, Kikuchi H, Inami T, Soejima K, Satoh T. Effects of body position during cardiopulmonary exercise testing with right heart catheterization. Physiol Rep 2018; 6:e13945. [PMID: 30548425 PMCID: PMC6289908 DOI: 10.14814/phy2.13945] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 11/15/2018] [Indexed: 12/21/2022] Open
Abstract
Cardiopulmonary exercise testing (CPX) with right heart catheterization (RHC) widely used for early diagnosis and evaluation of pulmonary vascular disease in patients with pulmonary arterial hypertension and early stage heart failure with preserved ejection fraction, who display normal hemodynamics at rest. The aim of this study was to investigate that whether body position affects pulmonary hemodynamics, pulmonary arterial wedge pressure (PAWP), and CPX parameters during invasive CPX. Seventeen patients (58 ± 14 years; 5/12 male/female) with chronic thromboembolic pulmonary hypertension treated with percutaneous transluminal pulmonary angioplasty and near-normal pulmonary artery pressure (PAP) underwent invasive CPX twice in supine and upright position using a cycle ergometer with 6 months interval. The mean PAP (peak: 45 ± 7 vs. 40 ± 11 mmHg, P = 0.006) and PAWP (peak: 17 ± 4 vs. 11 ± 7 mmHg, P = 0.008, supine vs. upright, respectively) throughout the test in supine position were significantly higher compared with in upright position, because of preload increase. However, transpulmonary pressure gradient, pulmonary vascular resistance, and mPA-Q slope during exercise were of no significant difference between two positions. There were no differences between the results of two positions in peak VO2 (15.9 ± 4.0 vs. 16.6 ± 3.2 mL/min per kg, P = 0.456), the VE versus VCO2 slope (37.8 ± 9.2 vs. 35.9 ± 8.0, P = 0.397), or the peak work-rate (79 ± 29 vs. 84 ± 27W, P = 0.118). Body position had a significant influence on PAP and PAWP during exercise, but no influence on the pulmonary circulation, or peak VO2 , or VE vs.VCO2 slope.
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Affiliation(s)
- Saiko Mizumi
- Division of CardiologyDepartment of MedicineKyorin University HospitalMitakaTokyoJapan
| | - Ayumi Goda
- Division of CardiologyDepartment of MedicineKyorin University HospitalMitakaTokyoJapan
| | - Kaori Takeuchi
- Division of CardiologyDepartment of MedicineKyorin University HospitalMitakaTokyoJapan
| | - Hanako Kikuchi
- Division of CardiologyDepartment of MedicineKyorin University HospitalMitakaTokyoJapan
| | - Takumi Inami
- Division of CardiologyDepartment of MedicineKyorin University HospitalMitakaTokyoJapan
| | - Kyoko Soejima
- Division of CardiologyDepartment of MedicineKyorin University HospitalMitakaTokyoJapan
| | - Toru Satoh
- Division of CardiologyDepartment of MedicineKyorin University HospitalMitakaTokyoJapan
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Ferrara F, Gargani L, Armstrong WF, Agoston G, Cittadini A, Citro R, D'Alto M, D'Andrea A, Dellegrottaglie S, De Luca N, Di Salvo G, Ghio S, Grünig E, Guazzi M, Kasprzak JD, Kolias TJ, Kovacs G, Lancellotti P, La Gerche A, Limongelli G, Marra AM, Moreo A, Ostenfeld E, Pieri F, Pratali L, Rudski LG, Saggar R, Saggar R, Scalese M, Selton-Suty C, Serra W, Stanziola AA, Voilliot D, Vriz O, Naeije R, Bossone E. The Right Heart International Network (RIGHT-NET): Rationale, Objectives, Methodology, and Clinical Implications. Heart Fail Clin 2018; 14:443-465. [PMID: 29966641 DOI: 10.1016/j.hfc.2018.03.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The Right Heart International Network is a multicenter international study aiming to prospectively collect exercise Doppler echocardiography tests of the right heart pulmonary circulation unit (RHPCU) in large cohorts of healthy subjects, elite athletes, and individuals at risk of or with overt pulmonary hypertension. It is going to provide standardization of exercise stress echocardiography of RHPCU and explore the full physiopathologic response.
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Affiliation(s)
| | - Luna Gargani
- Institute of Clinical Physiology-C.N.R., Pisa, Italy
| | - William F Armstrong
- Division of Cardiovascular Medicine, University of Michigan Medical Center, Ann Arbor, MI, USA
| | - Gergely Agoston
- Department of Family Medicine, University of Szeged, Szeged, Hungary
| | - Antonio Cittadini
- Department of Translational Medical Sciences, University Federico II, Naples, Italy
| | - Rodolfo Citro
- Heart Department, University Hospital of Salerno, Salerno, Italy
| | - Michele D'Alto
- Department of Cardiology, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Antonello D'Andrea
- Department of Cardiology, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Santo Dellegrottaglie
- Division of Cardiology, Ospedale Medico-Chirurgico Accreditato Villa dei Fiori, Acerra, Naples, Italy; Zena and Michael A. Wiener Cardiovascular Institute, Marie-Josee and Henry R. Kravis Center for Cardiovascular Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Nicola De Luca
- Hypertension Research Center "CIRIAPA", Federico II University, Napoli, Italy
| | | | - Stefano Ghio
- Fondazione IRCCS, Policlinico San Matteo, Pavia, Italy
| | - Ekkehard Grünig
- Centre for Pulmonary Hypertension, Thoraxclinic, Heidelberg University Hospital, Heidelberg, Germany
| | - Marco Guazzi
- Heart Failure Unit, Cardiopulmonary Laboratory, University Cardiology Department, IRCCS Policlinico San Donato University Hospital, Milan, Italy
| | | | - Theodore John Kolias
- Division of Cardiovascular Medicine, University of Michigan Medical Center, Ann Arbor, MI, USA
| | - Gabor Kovacs
- Department of Internal Medicine, Division of Pulmonology, Medical University of Graz, Graz, Austria; Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
| | - Patrizio Lancellotti
- Department of Cardiology, University of Liège Hospital, GIGA Cardiovascular Sciences, Liege, Belgium; Gruppo Villa Maria Care and Research, Anthea Hospital, Bari, Italy
| | | | - Giuseppe Limongelli
- Department of Cardiology, University of Campania "Luigi Vanvitelli", Naples, Italy; Institute of Cardiovascular Sciences, University College of London, London, UK
| | | | | | - Ellen Ostenfeld
- Department of Clinical Sciences Lund, Clinical Physiology, Skåne University Hospital, Lund, Sweden
| | - Francesco Pieri
- Department of Heart, Thorax and Vessels, Azienda Ospedaliero Universitaria, Florence, Italy
| | | | - Lawrence G Rudski
- Azrieli Heart Center and Center for Pulmonary Vascular Diseases, Jewish General Hospital, McGill University, Montreal, Quebec, Canada
| | - Rajan Saggar
- Lung and Heart-Lung Transplant Program, David Geffen School of Medicine, UCLA, Los Angeles, CA, USA; Pulmonary Hypertension Program, David Geffen School of Medicine, UCLA, Los Angeles, CA, USA
| | - Rajeev Saggar
- Lung Institute Banner University Medical Center-Phoenix, University of Arizona, Phoenix, AZ, USA
| | - Marco Scalese
- Institute of Clinical Physiology-C.N.R., Pisa, Italy
| | | | - Walter Serra
- Cardiology Unit, Surgery Department, University Hospital of Parma, Italy
| | - Anna Agnese Stanziola
- Department of Respiratory Diseases, Monaldi Hospital, University "Federico II", Naples, Italy
| | - Damien Voilliot
- Centre Hospitalier Lunéville, Service de Cardiologie, Lunéville, France
| | - Olga Vriz
- Heart Centre, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | | | - Eduardo Bossone
- Cardiology Division, Heart Department, "Cava de' Tirreni and Amalfi Coast" Hospital, University of Salerno, Salerno, Italy.
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Pezzuto B, Forton K, Badagliacca R, Motoji Y, Faoro V, Naeije R. Right ventricular dyssynchrony during hypoxic breathing but not during exercise in healthy subjects: a speckle tracking echocardiography study. Exp Physiol 2018; 103:1338-1346. [PMID: 30055062 DOI: 10.1113/ep087027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Accepted: 07/27/2018] [Indexed: 12/31/2022]
Abstract
NEW FINDINGS What is the central question of this study? Right ventricular dyssynchrony in severe pulmonary hypertension is associated with a poor prognosis. However, it has recently been observed in patients with lung or connective tissue disease and pulmonary artery pressure at the upper limits of normal. The mechanisms of right ventricular dyssynchrony in pulmonary hypertension remain uncertain. What is the main finding and its importance? Acute hypoxic breathing, but not normoxic exercise, induces an increase in right ventricular dyssynchrony detected by speckle tracking echocardiography in healthy subjects. These results add new insights into the determinants of right ventricular dyssynchrony, suggesting a role for systemic factors added to afterload in the pathophysiology of right ventricular inhomogeneity of contraction. ABSTRACT Pulmonary hypertension (PH) has been shown to be associated with regional inhomogeneity (or dyssynchrony) of right ventricular (RV) contraction. Right ventricular dyssynchrony is an independent predictor of decreased survival in advanced PH, but has also been reported in patients with only mildly elevated pulmonary artery pressure (PAP). The mechanisms of RV dyssynchrony in PH remain uncertain. Our aim was to evaluate RV regional function in healthy subjects during acute hypoxia and during exercise. Seventeen healthy subjects (24 ± 6 years) underwent a speckle tracking echocardiography of the RV at rest in normoxia and every 15 min during a 60 min exposure to hypoxic breathing ( F I O 2 12%). Ten of the subjects also underwent an incremental cycle ergometry in normoxia to 100 W, with the same echocardiographic measurements. Dyssynchrony was measured as the SD of the times to peak systolic strain of the four basal and mid RV segments corrected for the heart rate (RV-SD4). RV-SD4 increased during hypoxia from 12 ± 7 to 22 ± 11 ms in spite of mild increases in mean PAP (mPAP) from 15 ± 2 to 20 ± 2 mmHg and pulmonary vascular resistance (PVR) from 1.18 ± 0.15 to 1.4 ± 0.15 Wood units (WU). During exercise RV-SD4 did not significantly change (from 12 ± 6 ms to 14 ± 6 ms), while mPAP increased to 25 ± 2 mmHg and PVR was unchanged. These data show that in healthy subjects, RV contraction is inhomogeneous in hypoxia but not during exercise. Since PAP increases more during exercise, RV dyssynchrony in hypoxia may be explained by a combination of mechanical (RV afterload) and systemic (hypoxia) factors.
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Affiliation(s)
- Beatrice Pezzuto
- Department of Exercise Physiology; Faculty of Motor Sciences, Université Libre de Bruxelles; Route de Lennik 808 Bruxelles Belgium
- Department of Cardiovascular and Respiratory Sciences, Sapienza University of Rome; Rome Italy
| | - Kevin Forton
- Department of Exercise Physiology; Faculty of Motor Sciences, Université Libre de Bruxelles; Route de Lennik 808 Bruxelles Belgium
| | - Roberto Badagliacca
- Department of Cardiovascular and Respiratory Sciences, Sapienza University of Rome; Rome Italy
| | - Yoshiki Motoji
- Department of Exercise Physiology; Faculty of Motor Sciences, Université Libre de Bruxelles; Route de Lennik 808 Bruxelles Belgium
| | - Vitalie Faoro
- Department of Exercise Physiology; Faculty of Motor Sciences, Université Libre de Bruxelles; Route de Lennik 808 Bruxelles Belgium
| | - Robert Naeije
- Department of Exercise Physiology; Faculty of Motor Sciences, Université Libre de Bruxelles; Route de Lennik 808 Bruxelles Belgium
- Department of Cardiology, Erasme University Hospital of Brussels; Route de Lennik 808 Bruxelles Belgium
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20
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Strengths and weaknesses of echocardiography for the diagnosis of pulmonary hypertension. Int J Cardiol 2018; 263:177-183. [DOI: 10.1016/j.ijcard.2018.04.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 02/25/2018] [Accepted: 04/05/2018] [Indexed: 11/20/2022]
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Medrinal C, Combret Y, Prieur G, Robledo Quesada A, Bonnevie T, Gravier FE, Dupuis Lozeron E, Frenoy E, Contal O, Lamia B. Comparison of exercise intensity during four early rehabilitation techniques in sedated and ventilated patients in ICU: a randomised cross-over trial. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2018; 22:110. [PMID: 29703223 PMCID: PMC5923017 DOI: 10.1186/s13054-018-2030-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 04/06/2018] [Indexed: 12/24/2022]
Abstract
BACKGROUND In the ICU, out-of-bed rehabilitation is often delayed and in-bed exercises are generally low-intensity. Since the majority of rehabilitation is carried out in bed, it is essential to carry out the exercises that have the highest intensity. The aim of this study was to compare the physiological effects of four common types of bed exercise in intubated, sedated patients confined to bed in the ICU, in order to determine which was the most intensive. METHODS A randomised, single-blind, placebo-controlled crossover trial was carried out to evaluate the effects of four bed exercises (passive range of movements (PROM), passive cycle-ergometry, quadriceps electrical stimulation and functional electrical stimulation (FES) cycling) on cardiac output. Each exercise was carried out for ten minutes in ventilated, sedated patients. Cardiac output was recorded using cardiac Doppler ultrasound. The secondary aims were to evaluate right heart function and pulmonary and systemic artery pressures during the exercises, and the microcirculation of the vastus lateralis muscle. RESULTS The results were analysed in 19 patients. FES cycling was the only exercise that increased cardiac output, with a mean increase of 1 L/min (15%). There was a concomitant increase in muscle oxygen uptake, suggesting that muscle work occurred. FES cycling thus constitutes an effective early rehabilitation intervention. No muscle or systemic effects were induced by the passive techniques. CONCLUSION Most bed exercises were low-intensity and induced low levels of muscle work. FES cycling was the only exercise that increased cardiac output and produced sufficient intensity of muscle work. Longer-term studies of the effect of FES cycling on functional outcomes should be carried out. TRIAL REGISTRATION ClinicalTrials.gov, NCT02920684 . Registered on 30 September 2016. Prospectively registered.
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Affiliation(s)
- Clément Medrinal
- Normandie Univ, UNIROUEN, UPRES EA3830 - GRHV, Institute for Research and Innovation in Biomedicine (IRIB), 76000, Rouen, France. .,Intensive Care Unit Department, Groupe Hospitalier du Havre, Hôpital Jacques Monod, Pierre Mendes France, 76290, Montivilliers, France.
| | - Yann Combret
- Institut de Recherche Expérimentale et Clinique (IREC), Pôle de Pneumologie, ORL & Dermatologie, Université Catholique de Louvain, 1200, Brussels, Belgium.,Physiotherapy Department, Groupe Hospitalier du Havre, avenue Pierre Mendes France, 76290, Montivilliers, France
| | - Guillaume Prieur
- Intensive Care Unit Department, Groupe Hospitalier du Havre, Hôpital Jacques Monod, Pierre Mendes France, 76290, Montivilliers, France
| | - Aurora Robledo Quesada
- Intensive Care Unit Department, Groupe Hospitalier du Havre, Hôpital Jacques Monod, Pierre Mendes France, 76290, Montivilliers, France
| | - Tristan Bonnevie
- Normandie Univ, UNIROUEN, EA3830 - GRHV, 76000, Rouen, France.,Institute for Research and Innovation in Biomedicine (IRIB), 76000, Rouen, France.,ADIR Association, Bois Guillaume, France
| | | | - Elise Dupuis Lozeron
- Division of Clinical Epidemiology, Geneva University Hospitals, Geneva, Switzerland
| | - Eric Frenoy
- Intensive Care Unit Department Department, Groupe Hospitalier du Havre, Hôpital Jacques Monod, 76290, Montivilliers, France
| | - Olivier Contal
- University of Applied Sciences and Arts Western Switzerland (HES-SO), avenue de Beaumont, 1011, Lausanne, Switzerland
| | - Bouchra Lamia
- Normandie Univ, UNIROUEN, EA3830 - GRHV, 76000, Rouen, France.,Institute for Research and Innovation in Biomedicine (IRIB), 76000, Rouen, France.,Intensive Care Unit, Respiratory Department, Rouen University Hospital, Rouen, France.,Pulmonology Department, Groupe Hospitalier du Havre, avenue Pierre Mendes France, 76290, Montivilliers, France
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22
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Ni MW, Prather RO, Rodriguez G, Quinn R, Divo E, Fogel M, Kassab AJ, DeCampli WM. Computational Investigation of a Self-Powered Fontan Circulation. Cardiovasc Eng Technol 2018; 9:202-216. [PMID: 29464511 DOI: 10.1007/s13239-018-0342-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 02/12/2018] [Indexed: 11/25/2022]
Abstract
Children born with anatomic or functional "single ventricle" must progress through two or more major operations to sustain life. This management sequence culminates in the total cavopulmonary connection, or "Fontan" operation. A consequence of the "Fontan circulation", however, is elevated central venous pressure and inadequate ventricular preload, which contribute to continued morbidity. We propose a solution to these problems by increasing pulmonary blood flow using an "injection jet" (IJS) in which the source of blood flow and energy is the ventricle itself. The IJS has the unique property of lowering venous pressure while enhancing pulmonary blood flow and ventricular preload. We report preliminary results of an analysis of this circulation using a tightly-coupled, multi-scale computational fluid dynamics model. Our calculations show that, constraining the excess volume load to the ventricle at 50% (pulmonary to systemic flow ratio of 1.5), an optimally configured IJS can lower venous pressure by 3 mmHg while increasing systemic oxygen delivery. Even this small decrease in venous pressure may have substantial clinical impact on the Fontan patient. These findings support the potential for a straightforward surgical modification to decrease venous pressure, and perhaps improve clinical outcome in selected patients.
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Affiliation(s)
- Marcus W Ni
- Department of Mechanical and Aerospace Engineering, University of Central Florida, 4000 Central Florida Blvd, Orlando, FL, 32816, USA.
| | - Ray O Prather
- Department of Mechanical and Aerospace Engineering, University of Central Florida, 4000 Central Florida Blvd, Orlando, FL, 32816, USA
| | - Giovanna Rodriguez
- Department of Mechanical and Aerospace Engineering, University of Central Florida, 4000 Central Florida Blvd, Orlando, FL, 32816, USA
| | - Rachel Quinn
- College of Medicine, University of Central Florida, 4000 Central Florida Blvd, Orlando, FL, USA
| | - Eduardo Divo
- Department of Mechanical Engineering, Embry-Riddle Aeronautical University, 600 S Clyde Morris Blvd, Daytona Beach, FL, USA
| | - Mark Fogel
- The Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA, USA.,Division of Cardiology/Department of Pediatrics and the Department of Radiology, The Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA, USA
| | - Alain J Kassab
- Department of Mechanical and Aerospace Engineering, University of Central Florida, 4000 Central Florida Blvd, Orlando, FL, 32816, USA
| | - William M DeCampli
- College of Medicine, University of Central Florida, 4000 Central Florida Blvd, Orlando, FL, USA.,Arnold Palmer Hospital for Children, 92 W Miller St, Orlando, FL, USA
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Faoro V, Deboeck G, Vicenzi M, Gaston AF, Simaga B, Doucende G, Hapkova I, Roca E, Subirats E, Durand F, Naeije R. Pulmonary Vascular Function and Aerobic Exercise Capacity at Moderate Altitude. Med Sci Sports Exerc 2018; 49:2131-2138. [PMID: 28915226 DOI: 10.1249/mss.0000000000001320] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE There has been suggestion that a greater "pulmonary vascular reserve" defined by a low pulmonary vascular resistance (PVR) and a high lung diffusing capacity (DL) allow for a superior aerobic exercise capacity. How pulmonary vascular reserve might affect exercise capacity at moderate altitude is not known. METHODS Thirty-eight healthy subjects underwent an exercise stress echocardiography of the pulmonary circulation, combined with measurements of DL for nitric oxide (NO) and carbon monoxide (CO) and a cardiopulmonary exercise test at sea level and at an altitude of 2250 m. RESULTS At rest, moderate altitude decreased arterial oxygen content (CaO2) from 19.1 ± 1.6 to 18.4 ± 1.7 mL·dL, P < 0.001, and slightly increased PVR, DLNO, and DLCO. Exercise at moderate altitude was associated with decreases in maximum O2 uptake (V˙O2max), from 51 ± 9 to 43 ± 8 mL·kg⋅min, P < 0.001, and CaO2 to 16.5 ± 1.7 mL·dL, P < 0.001, but no different cardiac output, PVR, and pulmonary vascular distensibility. DLNO was inversely correlated to the ventilatory equivalent of CO2 (V˙E/V˙CO2) at sea level and at moderate altitude. Independent determinants of V˙O2max as determined by a multivariable analysis were the slope of mean pulmonary artery pressure-cardiac output relationship, resting stroke volume, and resting DLNO at sea level as well as at moderate altitude. The magnitude of the decrease in V˙O2max at moderate altitude was independently predicted by more pronounced exercise-induced decrease in CaO2 at moderate altitude. CONCLUSION Aerobic exercise capacity is similarly modulated by pulmonary vascular reserve at moderate altitude and at sea level. Decreased aerobic exercise capacity at moderate altitude is mainly explained by exercise-induced decrease in arterial oxygenation.
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Affiliation(s)
- Vitalie Faoro
- 1Laboratory of Exercise Physiology, Faculty of Motor Sciences, Université Libre de Bruxelles, Brussels, BELGIUM; 2Department of Cardiology, Erasmus Hospital, Université Libre de Bruxelles, Brussels, BELGIUM; 3U.O.C. Cardiovascular Diseases, Fondazione IRCCS Granda Hospital Maggiore Policlinico, Milan, ITALY; 4European Laboratory of Performance Health and Altitude, University of Perpignan, Font-Romeu, FRANCE; 5Faculty of Medicine, University of Girona, Girona, SPAIN; and 6Hospital Transfronterer de Cerdanya, Puigcerdà, SPAIN
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Naeije R, Saggar R, Badesch D, Rajagopalan S, Gargani L, Rischard F, Ferrara F, Marra AM, D' Alto M, Bull TM, Saggar R, Grünig E, Bossone E. Exercise-Induced Pulmonary Hypertension: Translating Pathophysiological Concepts Into Clinical Practice. Chest 2018; 154:10-15. [PMID: 29382472 DOI: 10.1016/j.chest.2018.01.022] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 12/18/2017] [Accepted: 01/05/2018] [Indexed: 11/18/2022] Open
Abstract
Exercise stress testing of the pulmonary circulation for the diagnosis of latent or early-stage pulmonary hypertension (PH) is gaining acceptance. There is emerging consensus to define exercise-induced PH by a mean pulmonary artery pressure > 30 mm Hg at a cardiac output < 10 L/min and a total pulmonary vascular resistance> 3 Wood units at maximum exercise, in the absence of PH at rest. Exercise-induced PH has been reported in association with a bone morphogenetic receptor-2 gene mutation, in systemic sclerosis, in left heart conditions, in chronic lung diseases, and in chronic pulmonary thromboembolism. Exercise-induced PH is a cause of decreased exercise capacity, may precede the development of manifest PH in a proportion of patients, and is associated with a decreased life expectancy. Exercise stress testing of the pulmonary circulation has to be dynamic and rely on measurements of the components of the pulmonary vascular equation during, not after exercise. Noninvasive imaging measurements may be sufficiently accurate in experienced hands, but suffer from lack of precision, so that invasive measurements are required for individual decision-making. Exercise-induced PH is caused either by pulmonary vasoconstriction, pulmonary vascular remodeling, or by increased upstream transmission of pulmonary venous pressure. This differential diagnosis is clinical. Left heart disease as a cause of exercise-induced PH can be further ascertained by a pulmonary artery wedge pressure above or below 20 mm Hg at a cardiac output < 10 L/min or a pulmonary artery wedge pressure-flow relationship above or below 2 mm Hg/L/min during exercise.
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Affiliation(s)
- Robert Naeije
- Department of Cardiology, Erasme University Hospital, Brussels, Belgium
| | - Rajeev Saggar
- Department of Medicine, University of Arizona, Phoenix, AZ
| | - David Badesch
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Sanjay Rajagopalan
- Cardiovascular Research Institute, Case Western Reserve School of Medicine, Cleveland, OH
| | - Luna Gargani
- Institute of Clinical Physiology, National Research Council, Pisa, Italy
| | - Franz Rischard
- Division of Cardiology, University of Arizona, Tucson, AZ
| | - Francesco Ferrara
- 'Cava de' Tirreni and Amalfi Coast' Hospital, Division of Cardiology, Heart Department, University Hospital, Salerno, Italy
| | | | - Michele D' Alto
- Department of Cardiology, University of Campania "Luigi Vanvitelli," Naples, Italy
| | - Todd M Bull
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Rajan Saggar
- Division of Pulmonary, Critical Care Medicine, Clinical Immunology, and Allergy, Department of Medicine, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA
| | - Ekkehard Grünig
- Centre for Pulmonary Hypertension, Thorax Clinic at the University Hospital, Heidelberg, Germany; German Center of Lung Research, Germany
| | - Eduardo Bossone
- 'Cava de' Tirreni and Amalfi Coast' Hospital, Division of Cardiology, Heart Department, University Hospital, Salerno, Italy.
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25
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Kovacs G, Herve P, Barbera JA, Chaouat A, Chemla D, Condliffe R, Garcia G, Grünig E, Howard L, Humbert M, Lau E, Laveneziana P, Lewis GD, Naeije R, Peacock A, Rosenkranz S, Saggar R, Ulrich S, Vizza D, Vonk Noordegraaf A, Olschewski H. An official European Respiratory Society statement: pulmonary haemodynamics during exercise. Eur Respir J 2017; 50:50/5/1700578. [DOI: 10.1183/13993003.00578-2017] [Citation(s) in RCA: 166] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 08/08/2017] [Indexed: 01/18/2023]
Abstract
There is growing recognition of the clinical importance of pulmonary haemodynamics during exercise, but several questions remain to be elucidated. The goal of this statement is to assess the scientific evidence in this field in order to provide a basis for future recommendations.Right heart catheterisation is the gold standard method to assess pulmonary haemodynamics at rest and during exercise. Exercise echocardiography and cardiopulmonary exercise testing represent non-invasive tools with evolving clinical applications. The term “exercise pulmonary hypertension” may be the most adequate to describe an abnormal pulmonary haemodynamic response characterised by an excessive pulmonary arterial pressure (PAP) increase in relation to flow during exercise. Exercise pulmonary hypertension may be defined as the presence of resting mean PAP <25 mmHg and mean PAP >30 mmHg during exercise with total pulmonary resistance >3 Wood units. Exercise pulmonary hypertension represents the haemodynamic appearance of early pulmonary vascular disease, left heart disease, lung disease or a combination of these conditions. Exercise pulmonary hypertension is associated with the presence of a modest elevation of resting mean PAP and requires clinical follow-up, particularly if risk factors for pulmonary hypertension are present. There is a lack of robust clinical evidence on targeted medical therapy for exercise pulmonary hypertension.
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Motoji Y, Forton K, Pezzuto B, Faoro V, Naeije R. Resistive or dynamic exercise stress testing of the pulmonary circulation and the right heart. Eur Respir J 2017; 50:50/1/1700151. [DOI: 10.1183/13993003.00151-2017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Accepted: 03/29/2017] [Indexed: 11/05/2022]
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Reply: Insights from Recognition of a Contradiction in the Equations that Define the Diffusing Capacity of the Lung for Carbon Monoxide. Ann Am Thorac Soc 2017; 14:474. [DOI: 10.1513/annalsats.201612-1037le] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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