scholarly journals Epidemiology and Outcomes of Nasopharyngeal Carcinoma

2021 ◽  
Author(s):  
Gamal Abdul Hamid

Nasopharyngeal carcinoma (NPC) is a rare head and neck neoplasm worldwide. It is common among the southern Chinese with significant geographical variation with the highest incidence being in Southeast Asia up to 6.4/100,000 males and 2.4/100,000 females in these regions and the Epstein Barr virus (EBV) is associated closely with NPC. This disease has peculiarities in its etiopathogenesis, presentation, risk of nodal and distant metastasis, response to therapy and overall survival (OS) outcomes that stand out as compared to other head and neck cancer subsites. NPC is mainly treated by RT and is profoundly radiosensitive and radiotherapy treatment is the spine of treatment for all stages of NPC without far off metastases. Many advances in RT techniques and schedules are attempted to improve outcomes of the disease starting from intracavitary brachytherapy, intensity modulated RT to simultaneous modulated accelerated RT, all showing some promise with most significant benefit seen with addition of chemotherapy, especially in intermediate (Stage II) and advanced (Stage III, IVA, IVB) cases. At a time when modern radiation treatment like intensity-modulated radiotherapy (IMRT) are accomplishing great good local control, distant metastases are getting to be the transcendent design of treatment failure, particularly in patients with locally progressed illness. There are numerous results from clinical trials looking at combined radiation treatment (RT) and chemotherapy for NPC. Survival rates significantly differ between NPC patients according to stages of disease.


2021 ◽  
Vol 11 ◽  
Author(s):  
Mengshan Ni ◽  
Lijun Geng ◽  
Fangfang Kong ◽  
Chengrun Du ◽  
Ruiping Zhai ◽  
...  

ObjectiveTo analyze the therapeutic effect and prognostic factors of nasopharyngeal carcinoma (NPC) patients with distant metastases at initial diagnosis receiving induction chemotherapy with intensity-modulated radiotherapy (IMRT).MethodsA total of 129 patients who underwent platinum-based induction chemotherapy followed by definitive IMRT with or without concurrent or adjuvant chemotherapy for newly diagnosed distant metastatic NPC in our center between March 2008 and November 2018 were retrospectively analyzed. 41 patients underwent local therapy for metastatic sites. Kaplan-Meier method was used to estimate survival rates, Log-rank test and Cox proportional hazards model were used to figure out independent prognostic factors of overall survival (OS).ResultsA total of 66 patients had been dead (median follow-up time, 51.5 months). The median overall survival (OS) time was 54.2 months (range, 7-136 months), and the 1-year, 2-year, 3-year, 5-year overall survival rates were 88.0%,71.0%,58.0%, and 47.0%. Multivariate analysis found that the factors correlated with poor overall survival were pre-treatment serum lactate dehydrogenase (SLDH) >180U/L, chemotherapy cycles<4, and M1 stage subdivision (M1b, single hepatic metastasis and/or multiple metastases excluding the liver; and M1c, multiple hepatic metastases). The 5-year OS rates for M1a, M1b and M1c were 62.6%,40.4% and 0%, respectively.ConclusionPlatinum-containing induction chemotherapy combined with IMRT seemed to be advantageous to prolong survival for some NPC patients with synchronous metastases at initial diagnosis. The independent factors to prognosticate OS were pre-treatment SLDH, number of chemotherapy cycles, and M1 subcategories. Prospective clinical trials are needed to confirm the result.



2020 ◽  
Vol 129 (10) ◽  
pp. 1011-1019
Author(s):  
Nehla Mokni Baizig ◽  
Ben Ayoub Wided ◽  
Olfa El Amine ◽  
Said Gritli ◽  
Michele ElMay

Objectives: Tunisia is in the endemic area of nasopharyngeal carcinoma. Epstein–Barr virus (EBV) based assays have been commonly used as standard markers for screening and monitoring the disease. So, it is very important to find novel factors for the early diagnostic and prognostic evaluation of this cancer. The aim of the study was to evaluate the expression of IGF-1R (Insulin Growth Factor Receptor 1), LMP 1 (Latent Membrane Protein 1) and EBERs (EBV encoded RNAs) in order to determine their correlation with clinicopathologic parameters and survival rates in patients with nasopharyngeal carcinoma (NPC). We also looked for the relationship between these biomarkers. Methods: IGF-1R and LMP1 expression was performed by means of immunohistochemical method and EBERs were detected using in situ hybridization of paraffin embedded tumor tissues of 94 patients with nasopharyngeal carcinoma and 45 non-cancerous nasopharyngeal mucosa samples. Results: Our findings demonstrated that IGF-1R was over expressed in 47.87% of NPC patients and only in 2.22% of controls. Positive LMP1 expression was detected in 56.38% of NPC patients and all NPC patients were positive for the EBV-encoded RNAs staining. A statistically significant positive correlation was observed between IGF-1R expression and the tumor size ( P < .001). Kaplan–Meier survival curves showed that NPC patients with a strong IGF-1R expression level have shorter median and 5-year Overall Survival than those with weak expression rates (100.15 vs 102.68 months, P = .08). In addition, median and 5-year Disease-Free Survival was significantly lower in the LMP1 positive NPC patients than in the LMP1 negative ones (53.38 vs 93.37 months, P = .03). Moreover, LMP1 expression correlated strongly with IGF-1R expression ( P = .018). The relationship between these two biomarkers could influence patient survival. Conclusion: IGF1-R and LMP1 could be valuable prognostic markers in Tunisian NPC patients.





2015 ◽  
Vol 115 ◽  
pp. S307
Author(s):  
F. Ricchetti ◽  
R. Mazzola ◽  
A. Fiorentino ◽  
S. Fersino ◽  
N. Giaj Levra ◽  
...  




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