Clinical outcomes and prognostic factors of chemoradiotherapy for postoperative lymph node recurrence of esophageal cancer

Abstract

Background

The therapeutic strategies and prognostic risk factors in patients with lymph node (LN) recurrence of esophageal cancer remain controversial. We assessed clinical outcomes and prognostic factors related to the use of chemoradiotherapy (CRT) for LN recurrence of esophageal squamous cell carcinoma (ESCC) after curative resection.

Methods

We retrospectively evaluated survival and prognostic factors in 57 patients with LN recurrence of ESCC after curative resection. Patients received CRT using 5-fluorouracil plus cisplatin (FP) or docetaxel. Radiotherapy was delivered at 2 Gy (total dose, 60–66 Gy; median, 60 Gy).

Results

The median follow-up duration was 24 (range, 3–116) months. The overall survival (OS) rates at 2, 3 and 5 years were 43.7%, 36.9% and 27.6%, respectively. In the univariate analysis of OS, treatment with FP, a single LN recurrence, and a single regional recurrence were associated with a significantly better prognosis (P = 0.04, P = 0.027 and P = 0.0001, respectively). In the multivariate analysis, the combination chemotherapy regimen [hazard ratio (HR), 2.50; 95% confidence interval (CI), 1.23–5.07] and the number of the regional LNs with recurrence (HR, 5.76; 95% CI, 1.22–27.12) were independent prognostic factors.

Conclusion

Approximately 28% of ESCC patients with LN recurrence after curative resection could achieve long-term survival with CRT. Treatment with FP or patients with a single regional recurrence might improve the treatment outcome.

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