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Erschienen in: Journal of Cancer Research and Clinical Oncology 16/2023

26.08.2023 | Research

A novel postoperative nomogram and risk classification system for individualized estimation of survival among patients with parotid gland carcinoma after surgery

verfasst von: Runqiu Zhu, Zhiyuan Gong, Yuwei Dai, Wenyi Shen, Huiyong Zhu

Erschienen in: Journal of Cancer Research and Clinical Oncology | Ausgabe 16/2023

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Abstract

Background

Parotid gland carcinoma (PGC) is a rare but aggressive head and neck cancer, and the prognostic model associated with survival after surgical resection has not yet been established. This study aimed to construct a novel postoperative nomogram and risk classification system for the individualized prediction of overall survival (OS) among patients with resected PGC.

Methods

Patients with PGC who underwent surgery between 2004 and 2015 from the Surveillance, Epidemiology, and End Results (SEER) database were randomized into training and validation cohorts (7:3). A nomogram developed using independent prognostic factors based on the results of the multivariate Cox regression analysis. Harrell’s concordance index (C-index), time-dependent area under the curve (AUC), and calibration plots were used to validate the performance of the nomogram. Moreover, decision curve analysis (DCA) was performed to compare the clinical use of the nomogram with that of traditional TNM staging.

Results

In this study, 5077 patients who underwent surgery for PGC were included. Age, sex, marital status, tumor grade, histology, TNM stage, surgery type, radiotherapy, and chemotherapy were independent prognostic factors. Based on these independent factors, a postoperative nomogram was developed. The C-index of the proposed nomogram was 0.807 (95% confidence interval 0.797–0.817). Meanwhile, the time-dependent AUC (> 0.8) indicated that the nomogram had a satisfactory discriminative ability. The calibration curves showed good concordance between the predicted and actual probabilities of OS, and DCA curves indicated that the nomogram had a better clinical application value than the traditional TNM staging. Moreover, a risk classification system was built that could perfectly classify patients with PGC into three risk groups.

Conclusions

This study constructed a novel postoperative nomogram and corresponding risk classification system to predict the OS of patients with PGC after surgery. These tools can be used to stratify patients with high or low risk of mortality and provide high-risk patients with more directed therapies and closer follow-up.
Literatur
Zurück zum Zitat Chou WC, Chang KP, Lu CH et al (2017) Complementary role of the Memorial Sloan Kettering Cancer Center nomogram to the American Joint Committee on Cancer system for the prediction of relapse of major salivary gland carcinoma after surgery. Head Neck 39(5):860–867. https://doi.org/10.1002/hed.24702CrossRefPubMed Chou WC, Chang KP, Lu CH et al (2017) Complementary role of the Memorial Sloan Kettering Cancer Center nomogram to the American Joint Committee on Cancer system for the prediction of relapse of major salivary gland carcinoma after surgery. Head Neck 39(5):860–867. https://​doi.​org/​10.​1002/​hed.​24702CrossRefPubMed
Zurück zum Zitat El-Naggar AK, Takata T, Slootweg PJ (2017) WHO classification of head and neck tumours, 4th edn. WHO, Geneva, pp 236–237 El-Naggar AK, Takata T, Slootweg PJ (2017) WHO classification of head and neck tumours, 4th edn. WHO, Geneva, pp 236–237
Zurück zum Zitat Terhaard CH, Lubsen H, Van der Tweel I et al (2004) Salivary gland carcinoma: independent prognostic factors for locoregional control, distant metastases, and overall survival: results of the Dutch head and neck oncology cooperative group. Head Neck 26(8):681–692. https://doi.org/10.1002/hed.10400CrossRefPubMed Terhaard CH, Lubsen H, Van der Tweel I et al (2004) Salivary gland carcinoma: independent prognostic factors for locoregional control, distant metastases, and overall survival: results of the Dutch head and neck oncology cooperative group. Head Neck 26(8):681–692. https://​doi.​org/​10.​1002/​hed.​10400CrossRefPubMed
Metadaten
Titel
A novel postoperative nomogram and risk classification system for individualized estimation of survival among patients with parotid gland carcinoma after surgery
verfasst von
Runqiu Zhu
Zhiyuan Gong
Yuwei Dai
Wenyi Shen
Huiyong Zhu
Publikationsdatum
26.08.2023
Verlag
Springer Berlin Heidelberg
Erschienen in
Journal of Cancer Research and Clinical Oncology / Ausgabe 16/2023
Print ISSN: 0171-5216
Elektronische ISSN: 1432-1335
DOI
https://doi.org/10.1007/s00432-023-05303-y

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