Completion pneumonectomy for lung metastases: is it justified?

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Abstract
OBJECTIVE: To evaluate the postoperative outcome and long-term results of patients who underwent iterative and extended pulmonary resection leading to completion pneumonectomy for pulmonary metastases. METHODS: From January 1985 to December 1995, 12 patients (mean age 45 years) underwent completion pneumonectomy for pulmonary metastases. These patients represent 1.5% of all pulmonary metastases operated on. There were 5 sarcoma and 7 carcinoma patients. Before completion pneumonectomy, 8 patients had only one pulmonary resection (wedge resection, 2; segmentectomy, 2; lobectomy,4), 3 patients had two operations and finally, 1 patient had multiplebilateral wedge resections and 1 lobectomy. The median interval time between the last pulmonary resection and completion pneumonectomy was 13.5 months (range 1-24 months). RESULTS: There were 10 left and two right completion pneumonectomies. Three patients had an extended resection (1 carina; 1 chest wall; 1 pleuropneumonectomy). Intrapericardial dissection was used in 3 patients. Two patients died within 30 days of the operation: 1 died of postoperative complications (8.3%) whereas the other died ofrapidly evolving metastatic disease. The remaining 10 patients had anuneventful postoperative course. Only 1 patient is still alive and free of disease 69 months after completion pneumonectomy. One patient is alive withdisease, another was lost to follow-up; 9 patients died of metastatic disease. The median survival time after completion pneumonectomy was 6 months (range 0-69 months). The estimated 5-year probability of survival was 10% (95% CI: 2-40%). CONCLUSIONS: Indications for both iterative andextended pulmonary resection for PM may be discussed only in highly young selected patients; the extremely poor outcome of our subgroup of patients should lead to even more restrictive indications of CP for pulmonary metastatic disease.

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