Criteria for intentional limited pulmonary resection in cT1N0M0 peripheral lung cancer

  • Teruaki Koike
  • Yasushi Yamato
  • Katsuo Yoshiya
  • Satsuki Kina
  • Takehiko Shimoyama
  • Ryuta Suzuki
  • Shuichi Satou
  • Keiichi Honma
Article
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Accepted:

Abstract

Objective: The purpose of this study was to establish selection criteria for intentional limited resection in patients with peripheral lung cancer. Methods: Six hundred eighty-nine cases of cT1N0M0 peripheral non-small cell lung cancer were divided into groups according to maximum tumor diameter. The cases in each group were examined for histopathological invasive factors, and the results of a pilot study of intentional limited resection were assessed. Results: The positive rate of invasive factors was 30.8% among the patients with tumors 2 cm or less in diameter, and significantly lower than the 44.0% noted in those whose tumor diameter was in the 2.1–3.0 cm range. The positive rate was significantly lower in 90 patients with type A or B adenocarcinoma, and none of these patients developed postoperative recurrence. In 24 of these 90 patients, the tumor diameter was in the 2.1–3.0 cm range. The 5-year survival rate in the 74 patients with pT1N0M0 and tumors 2 cm or less in diameter who underwent limited resection was 89.1%. Conclusions: We attempted to establish selection criteria for limited resection, with the aim of obtaining survival rates that was comparable to those obtained after lobectomy. The selection criteria established in this study are: 1, cT1N0M0 peripheral non-small cell lung cancer; 2, maximum tumor diameter 2 cm or less on diagnostic images, but a tumor diameter in the range of 2–3 cm in adenocarcinoma of Noguchi type A or B cases; 3, limited resection feasible based on tumor location.

Key words

intentional limited resection peripheral lung cancer small-sized lung cancer 
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Copyright information

© Japanese Association for Thoracic Surgery 2003

Authors and Affiliations

  • Teruaki Koike
    • 1
  • Yasushi Yamato
    • 1
  • Katsuo Yoshiya
    • 1
  • Satsuki Kina
    • 1
  • Takehiko Shimoyama
    • 1
  • Ryuta Suzuki
    • 1
  • Shuichi Satou
    • 1
  • Keiichi Honma
    • 2
  1. 1.Division of Chest SurgeryNiigata Cancer Center HospitalNiigataJapan
  2. 2.Division of PathologyNiigata Cancer Center HospitalNiigataJapan

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