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½Äµµ¾ÏÀÇ ¹æ»ç¼±Ä¡·á¼ºÀû The Results of Radiation Therapy in Patients with Cancer of the Esophagus

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Abstract

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#ÃÊ·Ï#
INTRODUCTION
Esophageal cancer primarily affects older men and ranks fifth (3.3%) in Korean male
cancer incidence. Cigarette smoking and alcoholic beverage drinking are the major
causes of esophageal cancer in western countries, and account for the fourfold excess in
male compared with female. The overwhelming majority of esophageal cancers present
with locally advanced or metastatic disease. Despite the major efforts in recent decades,
the prognosis for patients with carcinoma of the esophagus remain poor. Major reviews
of reported surgical and radiotherapeutic studies revealed an average 5-year survival of
4¡­6%. The low cure rate is primarily caused by the difficulty in achieving local control
with radiation therapy or surgery. Other major causes include the high incidence of
lymph node metastases and distant metastases.
In recent years, numerous institutions and cooperative groups have reported the
results of combined modality chemotherapy and radiation therapy in the management of
patients with esophageal cancer, either as curative treatment or as pre- or postoperative
therapy. Reported 2-year actuarial survival rates have ranged from 20¡­54% in the
series where in chemoradiotherapy comprised curative therapy. For chemoradiotherapy as
planned preoperative treatment, 2-year actuarial survival rates of 15¡­66% have been
obtained.
In this study, we analyzed retrospectively the results of 87 patients treated with
curative radiotherapy and postoperative radiotherapy including prognostic factors
influencing the longterm survival and the patterns of failure.

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