Author of

• 20180

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  P2.16 - Surgery (ID 717)

  • Event: WCLC 2017
  • Type: Poster Session with Presenters Present
  • Track: Surgery
  • Presentations: 1
  • Moderators:
  • Coordinates: 10/17/2017, 09:30 - 16:00, Exhibit Hall (Hall B + C)

  • 23557

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    P2.16-026 - Surgical Treatment for Metastatic Lung Tumors from Various Sarcomas (ID 10470)

    09:30 - 09:30  |  Presenting Author(s): Hiromasa Yamamoto
    • Abstract

    Background:
    Sarcomas are known to be malignant and aggressive tumors, and often develop multiple pulmonary metastasis. Although systemic therapy is a treatment of choice for metastatic lung tumors, effective treatments have not yet been established. Surgical resection for metastatic lung tumors is a therapeutic option to control the disease, while it is not a curative therapy.
    
    Method:
    Between 2006 and 2014, 129 sarcoma patients who underwent pulmonary metastasectomy in Okayama University Hospital were retrospectively reviewed. In total, 229 pulmonary resections were performed. We analyzed the following factors: age, sex, site of primary lesion, histology, operative procedures, size of the largest lesions resected, maximum number of the resected tumors, postoperative complications, and survival rate.
    
    Result:
    In total, 939 metastatic nodules were resected. Average number of tumors per intervention was 4.1 (range 1-19). These sarcoma patients consisted of 31 males and 98 females, and their average age was 53.6 years (range 14-80 years). Leiomyosarcoma was the most common histological subtype (n = 72, 55.8%) and uterus was the most common location of the primary disease (n = 55, 42.6%). Operative procedures were composed of 173 partial resections, 31 segmentectomies with or without partial resections, 24 lobectomies with or without partial resections, and 1 basal segmental auto-transplantation after pneumonectomy. The postoperative complications were limited, showing that pulmonary metastasectomies for sarcomas are acceptable. Overall 3-year survival after the first pulmonary metastasectomy was 49.5%, and the survival was significantly better for the group with disease-free interval of more than 2 years or the size of the largest resected lesion less than 30 mm.
    
    Conclusion:
    Surgical resections for metastatic lung tumors of sarcoma were performed without major complication, indicating acceptable feasibility. If disease-free interval is more than 2 years and the size of the largest resected lesion is less than 30 mm, patients may maximally benefit from surgical resection.