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Strahlenther Onkol. 2012 May;188(5):417-23. doi: 10.1007/s00066-012-0083-6. Epub 2012 Mar 14.

Postoperative periclavicular radiotherapy in breast cancer patients with 1-3 positive axillary lymph nodes. Outcome and morbidity.

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1
Clinic of Radiation Oncology, Medical School Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.

Abstract

PURPOSE:

The goal of this work was to examine the possible influence of periclavicular irradiation on outcome of breast cancer patients with 1-3 positive lymph nodes with special emphasis on late toxicity rates.

PATIENTS AND METHODS:

Between 1997 and 2000, 235 breast cancer patients (T1-2, 1-3 involved lymph nodes) were treated at our department following breast conservative surgery: 139 patients (59.1%) had one, 62 patients (26.4%) two, and 34 patients (14.5%) three positive lymph nodes. Extracapsular spread (ECS) was described in 72 patients (30.6%). There were 67 patients (28.5%) who received additional radiotherapy to the ipsilateral periclavicular lymph nodes (PCLNI), while 168 patients did not (noPCLNI). Patients were re-examined or contacted by phone with regard to treatment-related late effects.

RESULTS:

After a median follow-up of 78 months (range 7-107 months), 22 patients (9.4%) developed local, 9 (3.8%) axillary, 4 periclavicular (1.7%), and 41 distant failure (17.4%). The actuarial 8-year locoregional recurrence-free (LRRFS), disease-free (DFS), and overall survival rates (OS) were 83%, 67%, and 74%, respectively. Survival data for the PCLNI vs. noPCLNI group were 72% vs. 89% (p = 0.3), 56% vs. 73% (p = 0.4), and 86% vs. 70% (p = 0.3), respectively. No higher toxicity rates were reported in the PCLNI group compared to the noPCLNI group.

CONCLUSION:

We could not demonstrate any difference in outcome in breast cancer patients with 1-3 positive axillary lymph node metastases with or without periclavicular lymph node irradiation. In addition, patients with PCLNI did not complain about higher rates of late toxicities. However, patients with ECS, which may predict for locoregional failure, may benefit from adjuvant periclavicular irradiation.

PMID:
22410836
DOI:
10.1007/s00066-012-0083-6
[Indexed for MEDLINE]
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