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Total respiratory system compliance after thoracoplasty
K Shiraishi1, H Sasaki, M Yaekashiwa
1Department of Medical Checkup, Sendai Shakai Hoken Hospital, Japan.
Respiratory Medicine
|December 16, 1998
Summary
Thoracic deformity after thoracoplasty reduces respiratory system compliance (Crs). However, unimpeded diaphragm movement prevents severe ventilation impairment, despite anticipated breathing difficulties.
Area of Science:
- Pulmonary Medicine
- Respiratory Physiology
Background:
- Pulmonary tuberculosis sequelae can negatively impact respiratory function.
- Thoracoplasty, a surgical procedure for tuberculosis, can lead to thoracic deformities.
Purpose of the Study:
- To quantify the impact of post-thoracoplasty thoracic deformity on the mechanical work of breathing.
- To assess respiratory system compliance (Crs) in patients with tuberculosis sequelae.
Main Methods:
- Respiratory system compliance (Crs) was measured using a pressure-type body plethysmograph.
- Measurements were taken in patients post-thoracoplasty, with active pulmonary tuberculosis, and with pleural diseases.
Main Results:
- Post-thoracoplasty patients showed decreased Crs compared to those with minimal tuberculosis lesions.
- Crs was significantly correlated with vital capacity but not functional residual capacity.
- Ventilation impairment was less severe than expected from thoracic deformity, provided diaphragmatic movement was unrestricted.
Conclusions:
- Thoracic deformity following thoracoplasty decreases respiratory system compliance.
- Diaphragmatic function is crucial in mitigating ventilation impairment despite structural changes.