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Assessment of weaning indexes based on diaphragm activity in mechanically ventilated subjects after cardiovascular surgery. A pilot study

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10.5935/0103-507X.20170030
 
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hdl:2117/109689

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Muñoz Ortega, Isabel Cristina
Hernández Valdivieso, Alher Mauricio
Alonso López, Joan FrancescMés informacióMés informacióMés informació
Mañanas Villanueva, Miguel ÁngelMés informacióMés informacióMés informació
Atehortua López, Luis Horacio
Document typeArticle
Defense date2017-06
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
OBJECTIVE: The aim of this pilot study was to evaluate the feasibility of surface electromyographic signal derived indexes for the prediction of weaning outcomes among mechanically ventilated subjects after cardiac surgery. METHODS: A sample of 10 postsurgical adult subjects who received cardiovascular surgery that did not meet the criteria for early extubation were included. Surface electromyographic signals from diaphragm and ventilatory variables were recorded during the weaning process, with the moment determined by the medical staff according to their expertise. Several indexes of respiratory muscle expenditure from surface electromyography using linear and non-linear processing techniques were evaluated. Two groups were compared: successfully and unsuccessfully weaned patients. RESULTS: The obtained indexes allow estimation of the diaphragm activity of each subject, showing a correlation between high expenditure and weaning test failure. CONCLUSION: Surface electromyography is becoming a promising procedure for assessing the state of mechanically ventilated patients, even in complex situations such as those that involve a patient after cardiovascular surgery.
CitationMuñoz, I., Hernández, A.M., Alonso, J.F., Mañanas, M.A., Atehortua, L. Assessment of weaning indexes based on diaphragm activity in mechanically ventilated subjects after cardiovascular surgery. A pilot study. "Revista Brasileira de Terapia Intensiva", Juny 2017, vol. 29, núm. 2, p. 213-221. 
URIhttp://hdl.handle.net/2117/109689
DOI10.5935/0103-507X.20170030
ISSN0103-507X
Publisher versionhttp://www.rbti.org.br/artigo/detalhes/0103507X-29-2-13
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  • Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial - Articles de revista [1.539]
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