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Proportional assist ventilation improves leg muscle reoxygenation after exercise in heart failure with reduced ejection fraction

dc.contributor.authorSilva, Audrey Borghi
dc.contributor.authorGoulart, Cássia da Luz
dc.contributor.authorCarrascosa, Cláudia R.
dc.contributor.authorOliveira, Cristino Carneiro
dc.contributor.authorBerton, Danilo Cortozi
dc.contributor.authorAlmeida, Dirceu Rodrigues de
dc.contributor.authorNery, Luiz Eduardo
dc.contributor.authorArena, Ross
dc.contributor.authorNeder, José Alberto
dc.date.accessioned2022-02-15T15:32:21Z
dc.date.available2022-02-15T15:32:21Z
dc.date.issued2021-06-21
dc.identifierhttps://doi.org/10.3389/fphys.2021.685274por
dc.identifier.citationSILVA, Audrey Borghi; GOULART, Cássia da Luz; CARRASCOSA, Cláudia R.; OLIVEIRA, Cristino Carneiro; BERTON, Danilo Cortozi; ALMEIDA, Dirceu Rodrigues de; NERY, Luiz Eduardo; ARENA, Ross; NEDER, José Alberto. Proportional assist ventilation improves leg muscle reoxygenation after exercise in heart failure with reduced ejection fraction. Repositório Institucional da UFSCar, 2021. Dataset. Disponível em: https://repositorio.ufscar.br/handle/ufscar/15603.*
dc.identifier.urihttps://repositorio.ufscar.br/handle/ufscar/15603
dc.descriptionBackground: Respiratory muscle unloading through proportional assist ventilation (PAV) may enhance leg oxygen delivery, thereby speeding off-exercise oxygen uptake (V.O2) kinetics in patients with heart failure with reduced left ventricular ejection fraction (HFrEF). Methods: Ten male patients (HFrEF = 26 ± 9%, age 50 ± 13 years, and body mass index 25 ± 3 kg m2) underwent two constant work rate tests at 80% peak of maximal cardiopulmonary exercise test to tolerance under PAV and sham ventilation. Post-exercise kinetics of V.O2, vastus lateralis deoxyhemoglobin ([deoxy-Hb + Mb]) by near-infrared spectroscopy, and cardiac output (QT) by impedance cardiography were assessed. Results: PAV prolonged exercise tolerance compared with sham (587 ± 390 s vs. 444 ± 296 s, respectively; p = 0.01). PAV significantly accelerated V.O2 recovery (τ = 56 ± 22 s vs. 77 ± 42 s; p < 0.05), being associated with a faster decline in Δ[deoxy-Hb + Mb] and QT compared with sham (τ = 31 ± 19 s vs. 42 ± 22 s and 39 ± 22 s vs. 78 ± 46 s, p < 0.05). Faster off-exercise decrease in QT with PAV was related to longer exercise duration (r = −0.76; p < 0.05). Conclusion: PAV accelerates the recovery of central hemodynamics and muscle oxygenation in HFrEF. These beneficial effects might prove useful to improve the tolerance to repeated exercise during cardiac rehabilitation.eng
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)por
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)por
dc.language.isoengeng
dc.publisherUniversidade Federal de São Carlospor
dc.relation.urihttps://www.frontiersin.org/articles/10.3389/fphys.2021.685274/fullpor
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/br/*
dc.subjectBlood floweng
dc.subjectHeart failureeng
dc.subjectNon-invasive ventilationeng
dc.subjectHemodynamicseng
dc.subjectExercise recoveryeng
dc.titleProportional assist ventilation improves leg muscle reoxygenation after exercise in heart failure with reduced ejection fractioneng
dc.typeDataseteng
dc.publisher.initialsUFSCarpor
dc.publisher.programPrograma de Pós-Graduação em Fisioterapia - PPGFtpor
dc.subject.cnpqCIENCIAS DA SAUDE::FISIOTERAPIA E TERAPIA OCUPACIONALpor
dc.description.sponsorshipIdProcesso nº 2015/26501–1, Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)por
dc.description.sponsorshipIdProcesso nº 05/00722-0, Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)por
dc.description.sponsorshipIdProcesso nº 2018/03233-0, Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)por
dc.description.sponsorshipIdProcesso nº 443687/2018 - Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)por
dc.publisher.addressCâmpus São Carlospor
dc.contributor.authorlatteshttp://lattes.cnpq.br/4855616925791895por
dc.contributor.authorlatteshttp://lattes.cnpq.br/9790656360225486por
dc.contributor.authorlatteshttp://lattes.cnpq.br/9712141573504173por
dc.contributor.authorlatteshttp://lattes.cnpq.br/8427488721023635por
dc.contributor.authorlatteshttp://lattes.cnpq.br/9951730205467992por
dc.contributor.authorlatteshttp://lattes.cnpq.br/2605106957934146por
dc.contributor.authorlatteshttp://lattes.cnpq.br/5131155111475682por
dc.publisher.departmentDepartamento de Fisioterapia - DFisiopor


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