Ng Thomas, Dipetrillo Thomas, Purviance John, Safran Howard
Department of Medicine, The Miriam Hospital, 164 Summit Avenue, Providence, RI 02906, USA.
Curr Oncol Rep. 2006 May;8(3):174-82. doi: 10.1007/s11912-006-0017-5.
Surgical resection will cure only 15% to 20% of patients with seemingly localized esophageal cancer. Multimodality therapy has the potential to increase the cure rate by improving locoregional control and preventing systemic relapse. Randomized trials demonstrate that chemoradiation followed by surgery decreases local relapse as compared with surgery alone; however, the effect on overall survival remains uncertain. The additional impact of surgery following chemoradiation also remains unclear, with two randomized trials demonstrating an improvement in locoregional control without a benefit in survival. Morbidity and mortality of trimodality therapy have limited potential gains. Incorporation of docetaxel, irinotecan, and oxaliplatin into chemotherapy regimens prior to chemoradiation or as adjuvant therapy may decrease systemic recurrence. New radiation sensitizers may improve locoregional control. Biologic agents, such as cetuximab, trastuzumab, erlotinib, and bevacizumab, may enhance chemoradiation and target systemic micrometastases. Advances in radiation oncology and surgery may decrease morbidity and mortality from trimodality therapy, improving patient outcome.
手术切除仅能治愈15%至20%看似局限期的食管癌患者。多模式治疗有潜力通过改善局部区域控制和预防全身复发来提高治愈率。随机试验表明,与单纯手术相比,放化疗后再行手术可降低局部复发率;然而,对总生存期的影响仍不确定。放化疗后手术的额外影响也仍不明确,两项随机试验显示局部区域控制有所改善,但生存期未获益。三联疗法的发病率和死亡率限制了潜在获益。在放化疗前或作为辅助治疗将多西他赛、伊立替康和奥沙利铂纳入化疗方案可能会降低全身复发率。新型放疗增敏剂可能会改善局部区域控制。西妥昔单抗、曲妥珠单抗、厄洛替尼和贝伐单抗等生物制剂可能会增强放化疗效果并靶向全身微转移灶。放射肿瘤学和手术方面的进展可能会降低三联疗法的发病率和死亡率,改善患者预后。