Surface respiratory electromyography and dyspnea in acute heart failure patients

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  • dc.contributor.author Luiso, Daniele
  • dc.contributor.author Villanueva, Jair A.
  • dc.contributor.author Belarte Tornero, Laia Carla
  • dc.contributor.author Fort, Aleix
  • dc.contributor.author Blázquez-Bermejo, Zorba
  • dc.contributor.author Ruiz, Sonia
  • dc.contributor.author Farré, Ramon
  • dc.contributor.author Rigau, Jordi
  • dc.contributor.author Martí Almor, Julio
  • dc.contributor.author Farré López, Núria
  • dc.date.accessioned 2020-06-18T06:39:22Z
  • dc.date.available 2020-06-18T06:39:22Z
  • dc.date.issued 2020
  • dc.description.abstract Introduction and objectives: Dyspnea is the most common symptom among hospitalized patients with heart failure (HF) but besides dyspnea questionnaires (which reflect the subjective patient sensation and are not fully validated in HF) there are no measurable physiological variables providing objective assessment of dyspnea in a setting of acute HF patients. Studies performed in respiratory patients suggest that the measurement of electromyographic (EMG) activity of the respiratory muscles with surface electrodes correlates well with dyspnea. Our aim was to test the hypothesis that respiratory muscles EMG activity is a potential marker of dyspnea severity in acute HF patients. Methods: Prospective and descriptive pilot study carried out in 25 adult patients admitted for acute HF. Measurements were carried out with a cardio-respiratory portable polygraph including EMG surface electrodes for measuring the activity of main (diaphragm) and accessory (scalene and pectoralis minor) respiratory muscles. Dyspnea sensation was assessed by means of the Likert 5 questionnaire. Data were recorded during 3 min of spontaneous breathing and after breathing at maximum effort for several cycles for normalizing data. An index to quantify the activity of each respiratory muscle was computed. This assessment was carried out within the first 24 h of admission, and at day 2 and 5. Results: Dyspnea score decreased along the three measured days. Diaphragm and scalene EMG index showed a positive and significant direct relationship with dyspnea score (p<0.001 and p = 0.003 respectively) whereas pectoralis minor muscle did not. Conclusion: In our pilot study, diaphragm and scalene EMG activity was associated with increasing severity of dyspnea. Surface respiratory EMG could be a useful objective tool to improve assessment of dyspnea in acute HF patients.
  • dc.format.mimetype application/pdf
  • dc.identifier.citation Luiso D, Villanueva JA, Belarte-Tornero LC, Fort A, Blázquez-Bermejo Z, Ruiz S, et al. Surface respiratory electromyography and dyspnea in acute heart failure patients. PLoS One. 2020 Apr 29; 15(4): e0232225. DOI: 10.1371/journal.pone.0232225
  • dc.identifier.doi http://dx.doi.org/10.1371/journal.pone.0232225
  • dc.identifier.issn 1932-6203
  • dc.identifier.uri http://hdl.handle.net/10230/45008
  • dc.language.iso eng
  • dc.publisher Public Library of Science (PLoS)
  • dc.rights Copyright © 2020 Luiso et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, https://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
  • dc.rights.accessRights info:eu-repo/semantics/openAccess
  • dc.rights.uri https://creativecommons.org/licenses/by/4.0/
  • dc.subject.other Dispnea
  • dc.subject.other Aparell respiratori--Malalties
  • dc.subject.other Aturada cardíaca
  • dc.title Surface respiratory electromyography and dyspnea in acute heart failure patients
  • dc.type info:eu-repo/semantics/article
  • dc.type.version info:eu-repo/semantics/publishedVersion