ISSN : 1301-5680
e-ISSN : 2149-8156
Turkish Journal of Thoracic and Cardiovascular Surgery     
Prognostic factors and the prognostic role of inflammation indices in malignant pleural mesothelioma
Senar Ebinç1, Zeynep Oruç1, Ziya Kalkan1, Oğur Karhan1, Zuhat Urakçı1, Mehmet Küçüköner1, Muhammet Ali Kaplan1, Işıkdoğan Abdurrahman1
1Department of Internal Medicine, Division of Medical Oncology, Dicle University Faculty of Medicine, Diyarbakır, Türkiye
DOI : 10.5606/tgkdc.dergisi.2023.23365
Background: In this study, we aimed to investigate the prognostic factors of malignant pleural mesothelioma and the prognostic value of inflammation indices in malignant pleural mesothelioma.

Methods: Between January 2002 and December 2019, a total of 132 patients (74 males, 58 females; mean age: 55 years; range, 31 to 79 years) diagnosed with malignant pleural mesothelioma were retrospectively analyzed. Patients" demographic data and laboratory results were recorded. The prognostic value of the following five inflammation indices was evaluated: neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio, advanced lung cancer inflammation index, C-reactive protein/albumin ratio, and prognostic nutritional index.

Results: Of all patients, 81% (n=107) were aged 65 or older and 61.4% (n=81) had an epithelioid histology. Of 12 variables examined in the multivariate analysis for their relationship with survival, age ?65 years, non-epithelioid subtype, and prognostic nutritional index <40 were found to be poor prognostic factors. Based on the score constructed from these factors, the good prognostic group (score 0-1) had a median overall survival of 21 months and a one-year survival rate of 77.9%, while the poor prognostic group (score 2-3) had a median overall survival of nine months and a one-year survival rate of 29.7%.

Conclusion: Our study results indicate that age ≥65 years, prognostic nutritional index <40, and non-epithelioid histological subtype are poor prognostic factors of malignant pleural mesothelioma.

Keywords : Inflammation indices, malignant pleural mesothelioma, prognostic nutritional index, prognostic score
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