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J Korean Soc Ther Radiol > Volume 14(1); 1996 > Article
Journal of the Korean Society for Therapeutic Radiology 1996;14(1): 17-24.
The Results of Combined External Radiotherapy and Chemotherapyin the Management of Esophageal Cancer
Sung Rok Kim, Chul Soo Kim, Re Hwe Kim, Jun Hee Kim, Hyun Suk Suh, Hyun Joo Lee
1Department of Therapeutic Radiology, College of Inje University Park Hospital, Seoul, Korea.
2Department of Internal Medicine, College of Inje University Park Hospital, Seoul, Korea.
3Department Internal Medicine, College of Inje University Park Hospital, Sanggye, Korea.
ABSTRACT
PURPOSE:
To evaluate the role of combination therapy of external radiotherapy and chemotherapy in the management of advanced esophageal cancer as a primary treatment compared with radiation therapy alone. METHODS AND MATERIALS: A retrospective review of evaluable 55 esophageal cancer patients referredto the Department of Therapeutic Radiology, Paik Hospital for the external radiotherapy between Jul. 1983 and Dec.1994 was undertaken. Combined therapy patients (A group) were 30 and radiation alone patients (B group) were 25. Median age was 60 years old in A group(ranges : 42-81) and 65 years old in B group (ranges : 50-81). The male patients were 53. The fiffy patients had squamous cell carcinomas. Radiation doses of 2520-6480cGy were delivered over a period of 4-7weeks. using 4MV LIVAC. Chemotherapy was administered in bolus injection before, after, or during the course of external radiotherapy. The local control rate and patterns of failure according to both treatment modalities and 1,2 year survival rates according to prognostic factors (stage, tumor length, radiation dose etc.) were analysed.
RESULTS:
Median follow up period was 7 months (range : 2-73 months). Median survival was 7.5 months (20 days-29 months) in A group and 5 months(20 days-73 months) in B group. The 1,2 YSRs were 26.7%, 8.9% in A group. 12.7%, 4.3% in B group (p>0.05), respectively. The 1,2 YSRs according to stage(II/III), tumor length (5cm more or less). radiation dose(5000cGy more or less) of A and B group were analyzed and the differences of survival rates of both treatments were not statistically significant. But among group B, patients who received 5000cGy or more showed significant survival benefits (p<0.05). The treatment response rates of A and B group were 43.8%, 25.0%, respectively. Complete response rate of 25.0% in A and 8.3% in B were achieved. The local failure and distant metastsis were 52.4%, 23.8% in A group. 64.3%, 14.3% in B group, respectively. The combination therapy revealed more freguent leukopenia and nausea/vomiting than radiation alone group, but degree of side effects was only mild to modereate.
CONCLUSION:
The combined external radiotherapy and chemotherapy for advanced esophageal cancer appears to improve the response rate, local control rate and survival rate, but the improvement was not statistically significant. The side effects of combined modalities were mild to moderate without significant morbidity. Therefore it may be worthwhile to continue the present combined external radiotherapy and chemotherapy in the management of advanced esophageal cancer to confirm our result.
Key Words: Esophageal cancer, Combined external radiotherapy and chemotherapy
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