2010 年肺癌外科切除例の全国集計に関する肺癌登録合同委員会報告―二次報告―

The Japanese Joint Committee of Lung Cancer Registry (JJCLCR) has regularly conducted nationwide registry studies of lung cancer patients. This is a report of the 7th JJCLCR registry study for lung cancer patients surgically treated in 2010. The principal results of the study were published in English. The clinicopathologic profiles, staging, and prognosis of patients who underwent surgery for primary lung cancer in 2010 at teaching hospitals certified by the Japanese Board of General Thoracic Surgery were retrospectively collected in 2016. With a recent trend in surgical treatment for lung cancer, this study focused on the following issues in addition to the basic clinicopathological information; i) early lung cancer presenting ground-glass opacity, ii) multiple lung cancers, iii) comorbid diseases and past history of patients, iv) 30/90-day mortality and postoperative complications, v) the new adenocarcinoma classification published in 2011, vi) genetic mutation of lung cancer, and vii) postoperative recurrence and treatment for recurrent disease. The cohort consisted of 18,973 cases from 296 hospitals, which was the largest in the JJCLCR history. The most recent database of lung cancer surgery in Japan was successfully presented. Especially, as for long-term outcomes, overall survivals and disease-free survivals after surgery according to the TNM staging were shown. The database obtained in this study will greatly contribute to the promotion of research and the improvement of medical care in this field.