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Lung herniation as an anatomic consequence of pneumonectomy
T Fujimoto1, T Matsui, T Hanawa
1Center of Respiratory Disease, Kyoto-Katsura Hospital, Nishikyo, Kyoto, Japan. FjmtT@aol.com
The Thoracic and Cardiovascular Surgeon
|October 11, 2002
Summary
Lung herniation after pneumonectomy is not affected by COPD. Patients with a low body mass index (BMI) experience greater lung herniation, suggesting a need for preventive measures in this group.
Area of Science:
- Thoracic surgery
- Pulmonary function
- Medical imaging
Background:
- Pneumonectomy, a lung cancer surgery, leads to remaining lung overdistention.
- Excessive lung herniation can cause significant respiratory dysfunction.
Purpose of the Study:
- To investigate factors influencing lung herniation post-pneumonectomy.
- To assess the impact of COPD and BMI on lung herniation.
Main Methods:
- Developed the Lung Herniation Index (LHI) using chest CT scans.
- Analyzed LHI changes in 27 lung cancer patients who underwent complete pneumonectomy without recurrence.
- Compared LHI based on pre-existing COPD and body mass index (BMI).
Main Results:
- Lung Herniation Index (LHI) changes were similar in patients with and without COPD.
- Patients with a low BMI (< 20 kg/m²) exhibited significantly greater lung herniation compared to those with a higher BMI (≥ 20 kg/m²).
Conclusions:
- COPD does not influence the degree of lung herniation after pneumonectomy.
- Preventive strategies for lung herniation should be considered for patients with a low BMI.