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Effects of lung metastasectomy on respiratory function.
M Ninomiya1, J Nakajima, M Tanaka
1Department of Cardiothoracic Surgery, Faculty of Medicine, University of Tokyo, Tokyo, Japan.
The Japanese Journal of Thoracic and Cardiovascular Surgery : Official Publication of the Japanese Association for Thoracic Surgery = Nihon Kyobu Geka Gakkai Zasshi
|March 10, 2001
Summary
Lung metastasectomy impacts respiration. Less respiratory dysfunction occurs with thoracoscopic or median sternotomy approaches compared to posterolateral thoracotomy, especially for repeated procedures.
Area of Science:
- Thoracic Surgery
- Pulmonary Medicine
- Surgical Oncology
Background:
- Lung metastasectomy is a critical intervention for managing metastatic lung disease.
- Repeated lung metastasectomies can lead to significant restrictive respiratory dysfunction.
- Evaluating the impact of different surgical approaches on respiratory function is essential for patient outcomes.
Purpose of the Study:
- To evaluate the effects of lung metastasectomy on respiratory function.
- To compare the respiratory impact of different surgical techniques for lung metastasectomy.
Main Methods:
- A retrospective analysis of 102 patients who underwent lung metastasectomy between 1961 and 1999.
- Inclusion criteria: partial lung resection, adequate respiratory function testing, no other lung disease.
- Comparison of respiratory function (percent vital capacity) based on surgical approach: thoracoscopic, posterolateral thoracotomy, and median sternotomy.
Main Results:
- Unilateral thoracoscopic surgery resulted in significantly less decrease in percent vital capacity compared to posterolateral thoracotomy in both early and late postoperative periods (p < 0.01 and p < 0.0001, respectively).
- Two thoracoscopic operations caused less vital capacity reduction than two posterolateral thoracotomies (p = 0.02).
- Bilateral metastasectomy via median sternotomy showed less vital capacity decrease than posterolateral thoracotomies (p < 0.05).
- 36% of patients undergoing three or more metastasectomies experienced severe dyspnea (Hugh-Jones grade 3+).
Conclusions:
- Thoracoscopic metastasectomy and median sternotomy approaches lead to less restrictive respiratory dysfunction than posterolateral thoracotomy.
- Given the frequent need for repeated metastasectomies and their association with severe respiratory compromise, less invasive procedures are recommended.