J.Jpn. Surg. Soc.. 104(5): 390-394, 2003

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Feature topic

FUTURE PERSPECTIVES ON THE STANDARDIZATION OF SURGICAL TREATMENT FOR ESOPHAGEAL CANCER

The Japanese Society for Esophageal Diseases published guidelins for the treatment of esophageal cancer in December 2002. Radical surgery is indicated for T1N1 and T2, 3 disease without M1 metastasis to other organs, which consists of transthoracic esophagectomy through the right chest with mediastinal and abdominal (two-field), and cervical if necessary (three-field) resection, lymphadenectomy, and esophageal reconstruction by pulling up the stomach. The survival benefit of cervical lymphadenectomy remains controversial. A randomized, controlled trial (RCT) comparing two-field and three-field resection is needed to evaluate the efficacy of cervical lymphadenectomy. In the West, especially in the USA, surgeons prefer transhiatal esophagectomy, which is illogical in cancer surgery, rather than transthoracic esophagectomy. A recent Dutch RCT comparing transhiatal and transthoracic esophagectomy reported lower morbidity and a trend toward improvedlong-term survival in the transhiatal group. Minimally invasive surgery for esophageal cancer is common in clinical practice today. However, there is little evidence showing that less-invasive procedures are superior to radical surgery. Further investigation is needed to determine the efficacy of thoracoscopic esophagectomy and laparoscopic mobilization of the stomach for esophageal replacement. The efficacy of neoadjuvant chemotherapy and chemoradiotherapy also remains controversial. However, the effectiveness of adjuvant chemotherapy after surgery on disease-free survival was confirmed by the Japanese Clinical Oncology Group RCT.

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