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Late Breaking Abstract - Prognostic impact of decreased erector spinae muscle radiographic density after lung transplantation

Yohei Oshima, Susumu Sato, Toyofumi F. Chen-Yoshikawa, Daisuke Nakajima, Yuji Yoshioka, Ryota Hamada, Ayumi Otagaki, Manabu Nankaku, Hiroshi Date, Shuichi Matsuda
European Respiratory Journal 2021 58: PA3499; DOI: 10.1183/13993003.congress-2021.PA3499
Yohei Oshima
1Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan
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  • For correspondence: yoshima@kuhp.kyoto-u.ac.jp
Susumu Sato
2Department of Respiratory Care and Sleep Control Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Toyofumi F. Chen-Yoshikawa
3Department of Thoracic Surgery, Graduate School of Medicine, Nagoya University, Nagoya, Japan
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Daisuke Nakajima
4Department of Thoracic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Yuji Yoshioka
1Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan
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Ryota Hamada
1Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan
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Ayumi Otagaki
1Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan
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Manabu Nankaku
1Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan
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Hiroshi Date
4Department of Thoracic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Shuichi Matsuda
1Rehabilitation Unit, Kyoto University Hospital, Kyoto, Japan
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Abstract

Introduction: A radiographic density of erector spinae muscles (ESMs) is often decreased after lung transplantation (LTx) (Oshima Y, et al. ERJ Open Res. 2020). However, a prognostic impact of this change is not elucidated.

Objective: To verify whether the decrease in the radiographic density of ESMs after LTx can be associated with a poor prognosis.

Methods: Routine follow-up chest computed tomography scan data just before and 12 weeks after LTx were retrospectively retrieved for adult patients who underwent primary LTx at Kyoto University Hospital. The radiographic density of ESMs was quantitatively evaluated as the mean attenuation of the ESMs (ESMct), and an impact of the decreased ESMct during 12 weeks after LTx on overall survival (OS) was examined by Cox proportional hazard analyses.

Results: A total of 165 recipients (105 deceased-donor, 59 living-donor, 1 deceased- and living-donor-mixed LTx) were included in this study. Median duration of postoperative observation was 3.2 years, and 37 recipients (22%) had died in this period. Postoperative decreased ESMct was significantly associated with poor OS (per 5 HU decrease; HR, 1.49; 95% CI, 1.16-1.92, p=0.002) by multivariate model adjusted for age, sex, preoperative steroid use, episodes of acute rejection, and preoperative ESMct. Furthermore, the similar results were obtained when the subjects were limited to the deceased donor LTx.

Conclusion: Postoperative decreased ESMct was closely associated with a poor prognosis after LTx. These results suggests that to maintain the postoperative muscle radiographic density, which reflects muscle quality, may be important for the better prognosis after LTx.

  • Adults
  • Physiotherapy care
  • Skeletal muscle

Footnotes

Cite this article as: European Respiratory Journal 2021; 58: Suppl. 65, PA3499.

This abstract was presented at the 2021 ERS International Congress, in session “Prediction of exacerbations in patients with COPD”.

This is an ERS International Congress abstract. No full-text version is available. Further material to accompany this abstract may be available at www.ers-education.org (ERS member access only).

  • Copyright ©the authors 2021
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Late Breaking Abstract - Prognostic impact of decreased erector spinae muscle radiographic density after lung transplantation
Yohei Oshima, Susumu Sato, Toyofumi F. Chen-Yoshikawa, Daisuke Nakajima, Yuji Yoshioka, Ryota Hamada, Ayumi Otagaki, Manabu Nankaku, Hiroshi Date, Shuichi Matsuda
European Respiratory Journal Sep 2021, 58 (suppl 65) PA3499; DOI: 10.1183/13993003.congress-2021.PA3499

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Late Breaking Abstract - Prognostic impact of decreased erector spinae muscle radiographic density after lung transplantation
Yohei Oshima, Susumu Sato, Toyofumi F. Chen-Yoshikawa, Daisuke Nakajima, Yuji Yoshioka, Ryota Hamada, Ayumi Otagaki, Manabu Nankaku, Hiroshi Date, Shuichi Matsuda
European Respiratory Journal Sep 2021, 58 (suppl 65) PA3499; DOI: 10.1183/13993003.congress-2021.PA3499
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