Prolonged Slow Expiration Technique in Infants: Effects on Tidal Volume, Peak Expiratory Flow, and Expiratory Reserve Volume
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNIFESP |
Texto Completo: | http://repositorio.unifesp.br/handle/11600/34264 http://dx.doi.org/10.4187/respcare.01067 |
Resumo: | BACKGROUND: Prolonged slow expiration (PSE) is a physiotherapy technique often applied in infants to reduce pulmonary obstruction and clear secretions, but there have been few studies of PSE's effects on the respiratory system. OBJECTIVE: To describe PSE's effects on respiratory mechanics in infants. METHODS: We conducted a cross-sectional study with 18 infants who had histories of recurrent wheezing. the infants were sedated for lung-function testing, which was followed by PSE. the PSE consisted of 3 sequences of prolonged manual thoraco-abdominal compressions during the expiratory phase. We measured peak expiratory flow (PEF), tidal volume (V(T)), and the frequency of sighs during and immediately after PSE. We described the exhaled volume during PSE as a fraction of expiratory reserve volume (%ERV). We quantified ERV with the raised-volume rapid-thoracic-compression technique. RESULTS: the cohort's mean age was 32.2 weeks, and they had an average of 4.8 previous wheezing episodes. During PSE there was significant V(T) reduction (80 +/- 17 mL vs 49 +/- 11 mL, P < .001), no significant change in PEF (149 +/- 32 mL/s vs 150 +/- 32 mL/s, P = .54), and more frequent sighs (40% vs 5%, P = .03), compared to immediately after PSE. the exhaled volume increased in each PSE sequence (32 +/- 18% of ERV, 41 +/- 24% of ERV, and 53 +/- 20% of ERV, P = .03). CONCLUSIONS: It was possible to confirm and quantify that PSE deflates the lung to ERV. PSE caused no changes in PEF, induced sigh breaths, and decreased V(T), which is probably the main mechanical feature for mucus clearance. |
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Lanza, Fernanda de Cordoba [UNIFESP]Wandalsen, Gustavo [UNIFESP]Dela Bianca, Ana Caroline [UNIFESP]Cruz, Carolina Lopes da [UNIFESP]Postiaux, GuySolé, Dirceu [UNIFESP]Universidade Federal de São Paulo (UNIFESP)Grand Hop Charleroi2016-01-24T14:17:29Z2016-01-24T14:17:29Z2011-12-01Respiratory Care. Irving: Daedalus Enterprises Inc, v. 56, n. 12, p. 1930-1935, 2011.0020-1324http://repositorio.unifesp.br/handle/11600/34264http://dx.doi.org/10.4187/respcare.0106710.4187/respcare.01067WOS:000298516300008BACKGROUND: Prolonged slow expiration (PSE) is a physiotherapy technique often applied in infants to reduce pulmonary obstruction and clear secretions, but there have been few studies of PSE's effects on the respiratory system. OBJECTIVE: To describe PSE's effects on respiratory mechanics in infants. METHODS: We conducted a cross-sectional study with 18 infants who had histories of recurrent wheezing. the infants were sedated for lung-function testing, which was followed by PSE. the PSE consisted of 3 sequences of prolonged manual thoraco-abdominal compressions during the expiratory phase. We measured peak expiratory flow (PEF), tidal volume (V(T)), and the frequency of sighs during and immediately after PSE. We described the exhaled volume during PSE as a fraction of expiratory reserve volume (%ERV). We quantified ERV with the raised-volume rapid-thoracic-compression technique. RESULTS: the cohort's mean age was 32.2 weeks, and they had an average of 4.8 previous wheezing episodes. During PSE there was significant V(T) reduction (80 +/- 17 mL vs 49 +/- 11 mL, P < .001), no significant change in PEF (149 +/- 32 mL/s vs 150 +/- 32 mL/s, P = .54), and more frequent sighs (40% vs 5%, P = .03), compared to immediately after PSE. the exhaled volume increased in each PSE sequence (32 +/- 18% of ERV, 41 +/- 24% of ERV, and 53 +/- 20% of ERV, P = .03). CONCLUSIONS: It was possible to confirm and quantify that PSE deflates the lung to ERV. PSE caused no changes in PEF, induced sigh breaths, and decreased V(T), which is probably the main mechanical feature for mucus clearance.Universidade Federal de São Paulo, Dept Pediat, BR-04022001 São Paulo, BrazilGrand Hop Charleroi, Serv Med Interne & Pediat, Charleroi, BelgiumUniversidade Federal de São Paulo, Dept Pediat, BR-04022001 São Paulo, BrazilWeb of Science1930-1935engDaedalus Enterprises IncRespiratory Careprolonged slow expiration techniquephysiotherapyinfantpulmonary function testexpiratory reserve volumeProlonged Slow Expiration Technique in Infants: Effects on Tidal Volume, Peak Expiratory Flow, and Expiratory Reserve Volumeinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESP11600/342642022-02-18 12:05:29.304metadata only accessoai:repositorio.unifesp.br:11600/34264Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestopendoar:34652023-05-25T12:08:14.945598Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false |
dc.title.en.fl_str_mv |
Prolonged Slow Expiration Technique in Infants: Effects on Tidal Volume, Peak Expiratory Flow, and Expiratory Reserve Volume |
title |
Prolonged Slow Expiration Technique in Infants: Effects on Tidal Volume, Peak Expiratory Flow, and Expiratory Reserve Volume |
spellingShingle |
Prolonged Slow Expiration Technique in Infants: Effects on Tidal Volume, Peak Expiratory Flow, and Expiratory Reserve Volume Lanza, Fernanda de Cordoba [UNIFESP] prolonged slow expiration technique physiotherapy infant pulmonary function test expiratory reserve volume |
title_short |
Prolonged Slow Expiration Technique in Infants: Effects on Tidal Volume, Peak Expiratory Flow, and Expiratory Reserve Volume |
title_full |
Prolonged Slow Expiration Technique in Infants: Effects on Tidal Volume, Peak Expiratory Flow, and Expiratory Reserve Volume |
title_fullStr |
Prolonged Slow Expiration Technique in Infants: Effects on Tidal Volume, Peak Expiratory Flow, and Expiratory Reserve Volume |
title_full_unstemmed |
Prolonged Slow Expiration Technique in Infants: Effects on Tidal Volume, Peak Expiratory Flow, and Expiratory Reserve Volume |
title_sort |
Prolonged Slow Expiration Technique in Infants: Effects on Tidal Volume, Peak Expiratory Flow, and Expiratory Reserve Volume |
author |
Lanza, Fernanda de Cordoba [UNIFESP] |
author_facet |
Lanza, Fernanda de Cordoba [UNIFESP] Wandalsen, Gustavo [UNIFESP] Dela Bianca, Ana Caroline [UNIFESP] Cruz, Carolina Lopes da [UNIFESP] Postiaux, Guy Solé, Dirceu [UNIFESP] |
author_role |
author |
author2 |
Wandalsen, Gustavo [UNIFESP] Dela Bianca, Ana Caroline [UNIFESP] Cruz, Carolina Lopes da [UNIFESP] Postiaux, Guy Solé, Dirceu [UNIFESP] |
author2_role |
author author author author author |
dc.contributor.institution.none.fl_str_mv |
Universidade Federal de São Paulo (UNIFESP) Grand Hop Charleroi |
dc.contributor.author.fl_str_mv |
Lanza, Fernanda de Cordoba [UNIFESP] Wandalsen, Gustavo [UNIFESP] Dela Bianca, Ana Caroline [UNIFESP] Cruz, Carolina Lopes da [UNIFESP] Postiaux, Guy Solé, Dirceu [UNIFESP] |
dc.subject.eng.fl_str_mv |
prolonged slow expiration technique physiotherapy infant pulmonary function test expiratory reserve volume |
topic |
prolonged slow expiration technique physiotherapy infant pulmonary function test expiratory reserve volume |
description |
BACKGROUND: Prolonged slow expiration (PSE) is a physiotherapy technique often applied in infants to reduce pulmonary obstruction and clear secretions, but there have been few studies of PSE's effects on the respiratory system. OBJECTIVE: To describe PSE's effects on respiratory mechanics in infants. METHODS: We conducted a cross-sectional study with 18 infants who had histories of recurrent wheezing. the infants were sedated for lung-function testing, which was followed by PSE. the PSE consisted of 3 sequences of prolonged manual thoraco-abdominal compressions during the expiratory phase. We measured peak expiratory flow (PEF), tidal volume (V(T)), and the frequency of sighs during and immediately after PSE. We described the exhaled volume during PSE as a fraction of expiratory reserve volume (%ERV). We quantified ERV with the raised-volume rapid-thoracic-compression technique. RESULTS: the cohort's mean age was 32.2 weeks, and they had an average of 4.8 previous wheezing episodes. During PSE there was significant V(T) reduction (80 +/- 17 mL vs 49 +/- 11 mL, P < .001), no significant change in PEF (149 +/- 32 mL/s vs 150 +/- 32 mL/s, P = .54), and more frequent sighs (40% vs 5%, P = .03), compared to immediately after PSE. the exhaled volume increased in each PSE sequence (32 +/- 18% of ERV, 41 +/- 24% of ERV, and 53 +/- 20% of ERV, P = .03). CONCLUSIONS: It was possible to confirm and quantify that PSE deflates the lung to ERV. PSE caused no changes in PEF, induced sigh breaths, and decreased V(T), which is probably the main mechanical feature for mucus clearance. |
publishDate |
2011 |
dc.date.issued.fl_str_mv |
2011-12-01 |
dc.date.accessioned.fl_str_mv |
2016-01-24T14:17:29Z |
dc.date.available.fl_str_mv |
2016-01-24T14:17:29Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
Respiratory Care. Irving: Daedalus Enterprises Inc, v. 56, n. 12, p. 1930-1935, 2011. |
dc.identifier.uri.fl_str_mv |
http://repositorio.unifesp.br/handle/11600/34264 http://dx.doi.org/10.4187/respcare.01067 |
dc.identifier.issn.none.fl_str_mv |
0020-1324 |
dc.identifier.doi.none.fl_str_mv |
10.4187/respcare.01067 |
dc.identifier.wos.none.fl_str_mv |
WOS:000298516300008 |
identifier_str_mv |
Respiratory Care. Irving: Daedalus Enterprises Inc, v. 56, n. 12, p. 1930-1935, 2011. 0020-1324 10.4187/respcare.01067 WOS:000298516300008 |
url |
http://repositorio.unifesp.br/handle/11600/34264 http://dx.doi.org/10.4187/respcare.01067 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.none.fl_str_mv |
Respiratory Care |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1930-1935 |
dc.publisher.none.fl_str_mv |
Daedalus Enterprises Inc |
publisher.none.fl_str_mv |
Daedalus Enterprises Inc |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UNIFESP instname:Universidade Federal de São Paulo (UNIFESP) instacron:UNIFESP |
instname_str |
Universidade Federal de São Paulo (UNIFESP) |
instacron_str |
UNIFESP |
institution |
UNIFESP |
reponame_str |
Repositório Institucional da UNIFESP |
collection |
Repositório Institucional da UNIFESP |
repository.name.fl_str_mv |
Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP) |
repository.mail.fl_str_mv |
|
_version_ |
1783460254301814784 |