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Changes in pedicle pericardial fat tissue around the anastomotic site after tracheobronchoplasty

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Abstract

Purpose

Pericardial fat is appropriate tissue to cover the bronchial anastomotic site because its harvesting is minimally invasive. We investigated the changes in pericardial fat tissue around the anastomotic site after pulmonary resection with tracheobronchoplasty.

Methods

The subjects of this study were 43 lung cancer patients who underwent pulmonary resection with tracheobronchoplasty. We measured the maximum cross-sectional area and average computed tomography (CT) values of the pedicle pericardial fat pad around the anastomotic site 1 week and then 6 months after the operation.

Results

The average volume of the residual pedicle pericardial fat pad 6 months postoperatively was 61%. A body mass index (BMI) < 21.2 kg/m2 (P = 0.031) and a blood albumin level < 3.4 g/dl (P = 0.005) were significant predictors of pedicle flap shrinkage. Patients with fat tissue shrinkage had significantly elevated CT values 6 months postoperatively (P = 0.029), whereas those without shrinkage maintained low CT values.

Conclusions

Preoperative nutritional conditions, reflected in high BMI and blood albumin levels, correlated with a high residual pedicle pericardial fat pad. Conversely, patients with pedicle flap shrinkage had significantly increased CT values, suggesting that the fat might have taken on another form such as scar tissue.

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Acknowledgements

We thank Daijiro Kabata MPH from the Department of Medical Statistics, Osaka City University Graduate School of Medicine for his assistance with statistical analyses.

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Authors and Affiliations

  1. Department of General Thoracic Surgery, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan

    Takuma Tsukioka, Nobuhiro Izumi, Hiroaki Komatsu, Hidetoshi Inoue, Yumi Matsuda, Ryuichi Ito, Takuya Kimura & Noritoshi Nishiyama

  2. Department of Diagnostic and Interventional Radiology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan

    Yukio Miki

Authors
  1. Takuma Tsukioka
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  2. Nobuhiro Izumi
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  3. Hiroaki Komatsu
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  4. Hidetoshi Inoue
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  5. Yumi Matsuda
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  6. Ryuichi Ito
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  7. Takuya Kimura
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  8. Yukio Miki
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  9. Noritoshi Nishiyama
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Correspondence to Takuma Tsukioka.

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Takuma Tsukioka and his co-authors have no conflicts of interest to declare.

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Tsukioka, T., Izumi, N., Komatsu, H. et al. Changes in pedicle pericardial fat tissue around the anastomotic site after tracheobronchoplasty. Surg Today 52, 414–419 (2022). https://doi.org/10.1007/s00595-021-02370-x

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  • DOI: https://doi.org/10.1007/s00595-021-02370-x

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