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Changes in muscle quality and mass in intensive care unit ventilated patients

Chiharu Fujisawa, Akira Tamaki, Hideki Ikushima, Hirofumi Matsuoka
European Respiratory Journal 2016 48: PA3554; DOI: 10.1183/13993003.congress-2016.PA3554
Chiharu Fujisawa
1Rehabilitation Center, Shinko Hospital, Kobe, Japan
2Graduate School of Health Science, Hyogo University of Health Sciences, Kobe, Japan
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Akira Tamaki
2Graduate School of Health Science, Hyogo University of Health Sciences, Kobe, Japan
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Hideki Ikushima
1Rehabilitation Center, Shinko Hospital, Kobe, Japan
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Hirofumi Matsuoka
3Respiratory Medicine, Shinko Hospital, Kobe, Japan
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Abstract

Introduction: Decrease in the radiological density (RD) of muscle is associated with an increase in fat content, reduced insulin resistance, and reduced muscle strength. In an intensive care unit (ICU) setting, the changes in the muscle quality of ventilated patients remains to be elucidated.

Objective: The objective of this study was to quantify the loss of muscle cross-sectional area (CSA) and RD in the ICU patients who had been ventilated for ≥ 2 days.

Methods: Muscle CSA and RD of multifidus were assessed using computed tomography images and were measured in the ICU patients on admission and discharge. The paired t-test was used to assess changes in the outcomes, and the unpaired t-test was used to compare results between the ICU patients and age-matched healthy controls. All values of P < 0.05 were considered significant. The minimal clinically important difference (MCID) was calculated.

Results: Nine ICU patients and nine age-matched healthy controls were recruited for the study. Baseline characteristics of the muscle CSA, and RD were not significantly different between the patients on admitted to the ICU and the healthy controls (P > 0.05). However, on discharge from the ICU, the muscle CSA and RD were significantly reduced (P < 0.05). The MCIDs were 28.83 mm2 for CSA and 6.25 HU for RD.

Conclusion: The results of this study suggested that primary physical therapy intervention should be the focus for preventing the loss of muscle CSA and RD in the ICU ventilated patients.

  • Intensive care
  • Mechanical ventilation - ventilator-associated
  • Skeletal muscle
  • Copyright ©the authors 2016
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Changes in muscle quality and mass in intensive care unit ventilated patients
Chiharu Fujisawa, Akira Tamaki, Hideki Ikushima, Hirofumi Matsuoka
European Respiratory Journal Sep 2016, 48 (suppl 60) PA3554; DOI: 10.1183/13993003.congress-2016.PA3554

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Changes in muscle quality and mass in intensive care unit ventilated patients
Chiharu Fujisawa, Akira Tamaki, Hideki Ikushima, Hirofumi Matsuoka
European Respiratory Journal Sep 2016, 48 (suppl 60) PA3554; DOI: 10.1183/13993003.congress-2016.PA3554
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