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  • Title: Neoadjuvant versus adjuvant chemoradiation for stage II-III esophageal squamous cell carcinoma: a single institution experience.
    Author: Chen Y, Hao D, Wu X, Xing W, Yang Y, He C, Wang W, Liu J, Wang J.
    Journal: Dis Esophagus; 2017 Jul 01; 30(7):1-7. PubMed ID: 28475725.
    Abstract:
    Esophageal cancer is the eighth most common cancer worldwide. It is the fourth most common cause of cancer death in China and esophageal squamous cell carcinoma (ESCC) is the most prevalent histologic type. Many clinical trials have explored the value of neoadjuvant or adjuvant chemoradiation therapy in potentially resectable ESCC; however, these studies have produced conflicting results. This retrospective study was performed to investigate whether patients with resectable stage II/III ESCC should receive neoadjuvant or adjuvant therapy in addition to surgery. A review of stage II/III thoracic ESCC patients who underwent esophagectomy and either neoadjuvant or adjuvant chemoradiation was performed. Chemotherapy regimen consisted of cisplatin 75 mg/m2 divided into 3 days and fluorouracil 500 mg/m2 on days 1 to 5. The patients who underwent neoadjuvant therapy were treated with one cycle of chemotherapy concurrently with radiotherapy (40 Gy in 20 fractions, 5 days/week), and those receiving adjuvant therapy were treated with two cycles of chemotherapy concurrently with radiotherapy (46-50 Gy in 23-25 fractions, 5 days/week). A total of 122 patients met inclusion criteria, of which 49 underwent neoadjuvant chemoradiation and 73 underwent adjuvant chemoradiation. Median follow up was 36.5 months. The median survival times and 3, 5-year overall survival (OS) rates for the neoadjuvant and adjuvant groups were 39.3 versus 31.5 months, and 53.0%, 45.7% versus 42.9%, 29.7%, respectively (P = 0.091). For the patients with stage III ESCC, the median survival times and 5-year OS rates for the neoadjuvant and adjuvant groups were 39.3 versus 21.3 months, and 43.4% versus 21.0%, respectively (P = 0.021). Among lymph node-positive patients, the median survival times and 5-year OS rates for the neoadjuvant and adjuvant groups were 55.6 versus 23.7 months, and 43.0% versus 25.7%, respectively (P = 0.085). The incidence of perioperative and postoperative complications was comparable between the two groups (P > 0.05). For patients with resectable stage II/III ESCC, neoadjuvant chemoradiation does not increase postoperative complications and is associated with a trend toward better OS when compared to adjuvant chemoradiation.
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