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Prognostic factors in esophageal squamous cell carcinoma patients treated with neoadjuvant chemoradiation therapy

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Abstract

Background

Definitive evaluation of surgical specimens obtained after neoadjuvant chemoradiation therapy (CRT) is important for assessing additional treatment or prognosis in patients with esophageal squamous cell carcinoma (ESCC). In this study, we examined the histological prognostic factors for ESCC patients treated with CRT and determined an appropriate strategy for their evaluation.

Patients and methods

The present study involved 38 consecutive ESCC patients who underwent CRT followed by curative operation. CRT consisted of 5-fluorouracil plus cisplatin and 40 Gy of radiation. We examined histological variables as follows: CRT effect on primary tumor (T-effect: T-effective/T-ineffective), tumor depth (pT), lymph node metastases (pN: pN0/N1), number of lymph node metastases (number-pN), lymphatic invasion, and venous invasion. Univariate and multivariate analyses were performed to examine the independent prognostic factors. Survivals and mode of recurrence were then evaluated according to the independent prognostic factors.

Results

In the univariate analyses, T-effect, pN, number-pN, lymphatic invasion, and venous invasion were found to be prognostic factors with p < 0.01, and pT was a factor with p < 0.05. In the multivariate analysis, pN and T-effect were independent prognostic factors. The five-year survival rate of pN0 patients was more than 75%, even though the T-effect was poor. The 5-year survival rate of patients judged as pN1/T-effective was 50%, whereas all of the pN1/T-ineffective patients died within 2 years with relapse disease.

Conclusion

The evaluation method using both pN status and T-effect is useful for assessing prognosis of ESCC patients treated with neoadjuvant CRT.

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Conflict of interest

The authors declare that they have no conflict of interest.

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Correspondence to Hiroshi Okumura.

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Okumura, H., Uchikado, Y., Matsumoto, M. et al. Prognostic factors in esophageal squamous cell carcinoma patients treated with neoadjuvant chemoradiation therapy. Int J Clin Oncol 18, 329–334 (2013). https://doi.org/10.1007/s10147-012-0383-y

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  • DOI: https://doi.org/10.1007/s10147-012-0383-y

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