RT Journal Article SR Electronic T1 Early surgical resection for stage I high-grade neuroendocrine caricinoma of lung JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP PA4847 DO 10.1183/13993003.congress-2016.PA4847 VO 48 IS suppl 60 A1 Mochizuki, Eisuke A1 Ooishi, Kyohei A1 Miyashita, Koichi A1 Ichijyo, Koshiro A1 Furukawa, Syunya A1 Nagaoka, Miyuki A1 Matsuura, Syun A1 Mikura, Shinichiro A1 Tsukui, Masaru A1 Koshimizu, Naoki YR 2016 UL http://erj.ersjournals.com/content/48/suppl_60/PA4847.abstract AB RATIONALE: Since high-grade neuroendocrine tumors are rapidly progressive, most cases are inoperable when diagnosed. There are few reports about the prognosis of patients or the course of the disease after surgery.OBJECTIVES: To clarify the clinical course of the disease after surgery and factors influencing the prognosis.METHODS: We retrospectively assessed 27 patients receiving surgery for small cell carcinoma (22 cases) and large neuroendocrine carcinoma (5 cases) from January 2005 through January 2015 at our hospital.RESULTS: Patients were all male, with an average age of 70.9 years. Of the 27 patients, 22 had received postoperative adjuvant chemotherapy. Median progression-free survival (PFS) and overall survival (OS) were 1.1 and 5.5 years, respectively. Ten patients were recurrence-free. Ten patients who underwent surgery within 60 days after the diagnosis demonstrated a better prognosis regarding OS (p<0.01) than those operated on after 60 days. The size of the tumor, titer of tumor markers, chemotherapy, smoking history, and age did not influence PFS or OS.CONCLUSIONS: Early surgical resection for high-grade neuroendocrine carcinoma stage I may lead to a better prgonosis.