The prognostic nutritional index in resected high-grade pulmonary neuroendocrine carcinoma

  • Masayuki OkuiEmail author
  • Hirotoshi Horio
  • Ayaka Asakawa
  • Takashi Yamamichi
  • Masahiko Harada
Original Article



The prognostic nutritional index is a potential predictive indicator in other cancers and can be easily determined at low cost. To identify useful prognostic markers for high-grade neuroendocrine carcinomas, we examined the prognostic significance of the prognostic nutritional index in patients with resected high-grade pulmonary neuroendocrine carcinoma.


We retrospectively reviewed perioperative clinical and laboratory data of patients who underwent pulmonary resection for high-grade neuroendocrine carcinoma between January 2000 and December 2014. Associations between the preoperative prognostic nutritional index and the patients’ clinicopathological characteristics were analyzed to determine its prognostic significance.


The study comprised 61 patients, the majority of whom were men (85%). The median age was 70.0 years, and the median follow-up period was 42 months. No significant differences in the clinicopathological characteristics were observed between the high and low prognostic nutritional index groups. The 5-year overall survival and recurrence-free survival times were significantly shorter in the low prognostic nutritional index group than in the high prognostic nutritional index group (78.8% vs. 51.4% and 71.7% vs. 34.5%, respectively; p < 0.05). The prognostic nutritional index was confirmed as an independent prognostic factor (hazard ratio: 2.419, 95.0% confidence interval: 1.044–5.606; p < 0.05). A significantly greater proportion of patients developed distant metastases in the low prognostic nutritional index group than in the high prognostic nutritional index group (p < 0.05).


A low prognostic nutritional index is associated with poor survival in patients with resected high-grade pulmonary neuroendocrine carcinoma.


High-grade neuroendocrine carcinoma Prognostic nutritional index Survival 



We would like to thank Editage ( for English language editing.


This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

Compliance with ethical standards

Conflict of interest

The authors declare that there is no conflict of interest.


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Copyright information

© The Japanese Association for Thoracic Surgery 2019

Authors and Affiliations

  1. 1.Department of Thoracic SurgeryHiratsuka City HospitalHiratsukaJapan
  2. 2.Department of Thoracic SurgeryTokyo Metropolitan Cancer and Infectious Diseases Center Komagome HospitalTokyoJapan

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