Fractionated stereotatic radiotherapy for 50 patients with recurrent and residual nasopharyngeal carcinoma
- VernacularTitle:鼻咽癌复发与残存病变分次立体定向放射治疗
- Author:
Jianping XIAO
;
Guozhen XU
;
Yanjun MIAO
- Publication Type:Journal Article
- Keywords:
Nasopharyngeal neoplasms/radiotherapy;
Stereotactic radiotherepy;
Prognosis
- From:Chinese Journal of Radiation Oncology
1992;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the value of fractionated stereotatic radiation therapy (FSRT)(X knife) as a boost for recurrent or residual nasopharyngeal carcinoma (NPC) at the primary focus. Methods From Sept.20, 1995 to Dec.30,1998, 50 such patients were treated by FSRT with 6 MV photons. The total FSRT dose was 24～30?Gy prescribed at 1～4 centers on the 60%～90% isodose curves normalized to isocenter by multifractions of fraction size 6～8?Gy, 12,15?Gy, with interfraction duration of 4～6 days. Results CR 38/50 (76%), PR 9/50 (18%) and in evaluated 3/50 (6%). Total survivals(Kaplan meier):1 yr 83.6%, 2 yr 65.0% and 3 yr 59.6% . Conclusion Fractionated stereotatic radiotherapy (FSRT) is strongly indicated for recurrent or residual NPC at the primary focus.
