Preoperative Prognostic Nutritional Index is a Strong Predictor of Survival in Patients with Localized Soft Tissue Sarcoma
Tugba Akin Telli1, Nisanur Sariyar2, Ozkan Alan1, Nazim Can Demircan1, Selver Isik1, Rukiye Arikan1, Tugba Basoglu1, Alper Yasar1, Abdussamet Celebi1, Omer Sofulu3, Bulent Erol3, Huseyin Kemal Turkoz4, Zerrin Ozgen5, Ozlem Ercelep1, Faysal Dane1, Perran Fulden Yumuk11Department of Medical Oncology, Marmara University, Faculty of Medicine, Istanbul, Turkey, 2Department of Internal Medicine, Marmara University, Faculty of Medicine, Istanbul, Turkey, 3Department of Orthopedic Surgery and Traumatology, Marmara University, Faculty of Medicine, Istanbul, Turkey, 4Department of Pathology, Marmara University, Faculty of Medicine, Istanbul, Turkey, 5Department of Radiation Oncology, Marmara University, Faculty of Medicine, Istanbul, Turkey
Objectives: Prognostic nutritional index (PNI) is an inflammation-based score which was found to be predictive of survival for different types of cancer. Aim of present study is to investigate the association between PNI and survival outcomes in patients with soft tissue sarcoma (STS) operated with curative intent. Methods: We retrospectively collected data of 86 patients with localized STS. Preoperative PNI was calculated with the following formula:10×serum albumin (g/dL)+0.005×total lymphocyte count (per mm3 ). Patients were classified into 2 groups based on median PNI value. Results: Median age was 52.5 (18-86) years. There were 49 male and 37 female patients. Most common histology was liposarcoma (26.7%). Our cohort mainly included stage 3 (69.8%) and grade 3 (66.3%) tumors. Radiotherapy and chemotherapy were applied to 69.8% and 48.8% of patients, respectively. Median value of PNI was 48.2 (25.5-68.0). Median follow-up duration was 25 months (3-120). Median overall survival (OS) was 84.6 months (95% CI, 72.0-97.3). Median OS of patients with high PNI (?48.2) was significantly longer than patients with low PNI (<48.2), being 99.6 months(95% CI, 83.6-115.6) and 64.5 months(95% CI, 50.3-78.7), respectively(p=0.02). Multivariate analysis determined PNI as an independent prognostic indicator for OS [HR: 2.96, (95% CI 1.11–7.87), p=0.02] along with age. Conclusion: Our findings suggest that PNI predicts OS independently in patients with STS. Therefore, PNI is a valuable prognostic tool in preoperative setting. Keywords: Prognosis, prognostic nutritional index (PNI), survival, soft tissue sarcoma (STS)
Cite This Article
Telli T, Sariyar N, Alan O, Demircan N, Isik S, Arikan R, Basoglu T, Yasar A, Celebi A, Sofulu O, Erol B, Turkoz H, Ozgen Z, Ercelep O, Dane F, Yumuk P. Preoperative Prognostic Nutritional Index is a Strong Predictor of Survival in Patients with Localized Soft Tissue Sarcoma. EJMI. 2021; 5(2): 256-262
Corresponding Author: Tugba Akin Telli