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Int J Radiat Oncol Biol Phys. 2008 Nov 15;72(4):967-71. doi: 10.1016/j.ijrobp.2008.08.001.

Stereotactic body radiation therapy in centrally and superiorly located stage I or isolated recurrent non-small-cell lung cancer.

Author information

  • 1Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. jychang@mdanderson.org

Abstract

PURPOSE:

To evaluate the efficacy and adverse effects of image-guided stereotactic body radiation therapy (SBRT) in centrally/superiorly located non-small-cell lung cancer (NSCLC).

MATERIALS AND METHODS:

We delivered SBRT to 27 patients, 13 with Stage I and 14 with isolated recurrent NSCLC. A central/superior location was defined as being within 2 cm of the bronchial tree, major vessels, esophagus, heart, trachea, pericardium, brachial plexus, or vertebral body, but 1 cm away from the spinal canal. All patients underwent four-dimensional computed tomography-based planning, and daily computed tomography-on-rail guided SBRT. The prescribed dose of 40 Gy (n = 7) to the planning target volume was escalated to 50 Gy (n = 20) in 4 consecutive days.

RESULTS:

With a median follow-up of 17 months (range, 6-40 months), the crude local control at the treated site was 100% using 50 Gy. However, 3 of 7 patients had local recurrences when treated using 40 Gy. Of the patients with Stage I disease, 1 (7.7%) and 2 (15.4%) developed mediastinal lymph node metastasis and distant metastases, respectively. Of the patients with recurrent disease, 3 (21.4%) and 5 (35.7%) developed mediastinal lymph node metastasis and distant metastasis, respectively. Four patients (28.6%) with recurrent disease but none with Stage I disease developed Grade 2 pneumonitis. Three patients (11.1%) developed Grade 2-3 dermatitis and chest wall pain. One patient developed brachial plexus neuropathy. No esophagitis was noted in any patient.

CONCLUSIONS:

Image-guided SBRT using 50 Gy delivered in four fractions is feasible and resulted in excellent local control.

PMID:
18954709
[PubMed - indexed for MEDLINE]
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