Abstract
BACKGROUND Adjuvant radiotherapy is given following surgery in breast cancer patients. Hypofractonated radiotherapy can significantly reduce the waiting time for radiotherapy, working load on machines, patient visits to radiotherapy departments and medical costs. Material and Methods 244 patients with high-risk breast cancer (stage IIB, stage III and stage IA with any of the following criteria: lymphovascular invasion, hormonal receptor negative, young age) who underwent Breast conservative surgery (BCS) or Modified radical mastectomy (MRM) were enrolled in this study. All patients received adjuvant radiotherapy with different hypofractionation schedules either 3900 cGY/13 fractions or 4240 cGY/16 fractions or 4005 cGY/15 fractions using linear accelerator with 6 MV photon beam. Lateral/Medial tangential and Ipsilateral supraclavicular fields were employed and the ipsilateral axilla was also irradiated if required to the same dose with posteroanterior field. Patients were followed every 3 mons for the first 2 years and every 6 mons thereafter. Outcomes were analyzed in terms of tumor control and survival. Results 244 patients with high-risk breast cancer requiring postoperative radiotherapy to the intact breast or chest wall were treated. The mean age was 48 years (range 28 - 69 years). The 5-year locoregional free survival of all patients was 93.8% the local relapse reported in 15 patients (6.2%) 7 patients at site of operated scar & 8 patients at the regional lymph nodes. The median follow up period was 75 months ranged from 49 to 102 months. Distant metastasis free survival was 92.2%, the distant metastasis reported in 19 patients which represent (7.8%) of all patients, median survival is 75 months ranged from 49 to 102 months and overall survival was 88.6%. Conclusion It is concluded that hypofractionated radiotherapy is a simple and effective protocol in patients with high-risk breast cancer regarding tumor control and survival.
Highlights
Breast cancer is the most common neoplasm in women, accounting for 29% of all cancers diagnosed annually; overall it is the 2nd leading cause of death following lung cancer
Distant metastasis free survival was 92.2%, the distant metastasis reported in 19 patients which represent (7.8%) of all patients, median survival is 75 months ranged from 49 to 102 months and overall survival was 88.6%
All of our patients received adjuvant radiotherapy with different hypo-fractionation schedules. Those patients attended to the radiotherapy department of South Egypt cancer institute (SECI), Assuit University, Egypt, between January 2010 till December 2014
Summary
Breast cancer is the most common neoplasm in women, accounting for 29% of all cancers diagnosed annually; overall it is the 2nd leading cause of death following lung cancer. Patients often receive adjuvant radiation therapy following surgery. Studies have reported that breast conserving surgery followed by irradiation yields results similar to those of radical operations such as full mastectomy [3]. Adjuvant radiotherapy is given following surgery in breast cancer patients. Material and Methods 244 patients with high-risk breast cancer (stage IIB, stage III and stage IA with any of the following criteria: lymphovascular invasion, hormonal receptor negative, young age) who underwent Breast conservative surgery (BCS) or Modified radical mastectomy (MRM) were enrolled in this study. Results 244 patients with high-risk breast cancer requiring postoperative radiotherapy to the intact breast or chest wall were treated. Conclusion It is concluded that hypofractionated radiotherapy is a simple and effective protocol in patients with high-risk breast cancer regarding tumor control and survival
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