Change in diaphragm and intercostal muscle thickness in mechanically ventilated patients: a prospective observational ultrasonography study.
Atrophy
Diaphragm
Intercostal muscle
Ultrasonography
Journal
Journal of intensive care
ISSN: 2052-0492
Titre abrégé: J Intensive Care
Pays: England
ID NLM: 101627304
Informations de publication
Date de publication:
2019
2019
Historique:
received:
10
06
2019
accepted:
17
10
2019
entrez:
13
12
2019
pubmed:
13
12
2019
medline:
13
12
2019
Statut:
epublish
Résumé
Diaphragm atrophy is observed in mechanically ventilated patients. However, the atrophy is not investigated in other respiratory muscles. Therefore, we conducted a two-center prospective observational study to evaluate changes in diaphragm and intercostal muscle thickness in mechanically ventilated patients. Consecutive adult patients who were expected to be mechanically ventilated longer than 48 h in the ICU were enrolled. Diaphragm and intercostal muscle thickness were measured on days 1, 3, 5, and 7 with ultrasonography. The primary outcome was the direction of change in muscle thickness, and the secondary outcomes were the relationship of changes in muscle thickness with patient characteristics. Eighty patients (54 males and 26 females; mean age, 68 ± 14 years) were enrolled. Diaphragm muscle thickness decreased, increased, and remained unchanged in 50 (63%), 15 (19%), and 15 (19%) patients, respectively. Intercostal muscle thickness decreased, increased, and remained unchanged in 48 (60%), 15 (19%), and 17 (21%) patients, respectively. Decreased diaphragm or intercostal muscle thickness was associated with prolonged mechanical ventilation (median difference (MD), 3 days; 95% CI (confidence interval), 1-7 and MD, 3 days; 95% CI, 1-7, respectively) and length of ICU stay (MD, 3 days; 95% CI, 1-7 and MD, 3 days; 95% CI, 1-7, respectively) compared with the unchanged group. After adjusting for sex, age, and APACHE II score, they were still associated with prolonged mechanical ventilation (hazard ratio (HR), 4.19; 95% CI, 2.14-7.93 and HR, 2.87; 95% CI, 1.53-5.21, respectively) and length of ICU stay (HR, 3.44; 95% CI, 1.77-6.45 and HR, 2.58; 95% CI, 1.39-4.63, respectively) compared with the unchanged group. Decreased diaphragm and intercostal muscle thickness were frequently seen in patients under mechanical ventilation. They were associated with prolonged mechanical ventilation and length of ICU stay. UMIN000031316. Registered on 15 February 2018.
Sections du résumé
BACKGROUND
BACKGROUND
Diaphragm atrophy is observed in mechanically ventilated patients. However, the atrophy is not investigated in other respiratory muscles. Therefore, we conducted a two-center prospective observational study to evaluate changes in diaphragm and intercostal muscle thickness in mechanically ventilated patients.
METHODS
METHODS
Consecutive adult patients who were expected to be mechanically ventilated longer than 48 h in the ICU were enrolled. Diaphragm and intercostal muscle thickness were measured on days 1, 3, 5, and 7 with ultrasonography. The primary outcome was the direction of change in muscle thickness, and the secondary outcomes were the relationship of changes in muscle thickness with patient characteristics.
RESULTS
RESULTS
Eighty patients (54 males and 26 females; mean age, 68 ± 14 years) were enrolled. Diaphragm muscle thickness decreased, increased, and remained unchanged in 50 (63%), 15 (19%), and 15 (19%) patients, respectively. Intercostal muscle thickness decreased, increased, and remained unchanged in 48 (60%), 15 (19%), and 17 (21%) patients, respectively. Decreased diaphragm or intercostal muscle thickness was associated with prolonged mechanical ventilation (median difference (MD), 3 days; 95% CI (confidence interval), 1-7 and MD, 3 days; 95% CI, 1-7, respectively) and length of ICU stay (MD, 3 days; 95% CI, 1-7 and MD, 3 days; 95% CI, 1-7, respectively) compared with the unchanged group. After adjusting for sex, age, and APACHE II score, they were still associated with prolonged mechanical ventilation (hazard ratio (HR), 4.19; 95% CI, 2.14-7.93 and HR, 2.87; 95% CI, 1.53-5.21, respectively) and length of ICU stay (HR, 3.44; 95% CI, 1.77-6.45 and HR, 2.58; 95% CI, 1.39-4.63, respectively) compared with the unchanged group.
CONCLUSIONS
CONCLUSIONS
Decreased diaphragm and intercostal muscle thickness were frequently seen in patients under mechanical ventilation. They were associated with prolonged mechanical ventilation and length of ICU stay.
TRIAL REGISTRATION
BACKGROUND
UMIN000031316. Registered on 15 February 2018.
Identifiants
pubmed: 31827804
doi: 10.1186/s40560-019-0410-4
pii: 410
pmc: PMC6886193
doi:
Types de publication
Journal Article
Langues
eng
Pagination
56Informations de copyright
© The Author(s). 2019.
Déclaration de conflit d'intérêts
Competing interestsThe authors declare that they have no competing interests
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