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  • Title: High-dose-rate brachytherapy for small-sized peripherally located lung cancer.
    Author: Imamura F, Ueno K, Kusunoki Y, Uchida J, Yoshimura M, Koizumi M, Yamasaki H, Nishiyama K.
    Journal: Strahlenther Onkol; 2006 Dec; 182(12):703-7. PubMed ID: 17149576.
    Abstract:
    BACKGROUND: The demand for minimally invasive therapies is increasing in the treatment of small peripheral non-small cell lung cancer (NSCLC). PATIENTS AND METHODS: Twelve patients with T1-2 N0 M0 peripheral NSCLC were treated by high-dose-rate brachytherapy with (192)Ir radioactive source. RESULTS: A (192)Ir source was introduced into the tumors percutaneously in five patients (percutaneous brachytherapy) or transbronchially in seven patients (transbronchial brachytherapy). Whereas irradiation was performed with a single fraction of 20 Gy in percutaneous brachytherapy, it was hypofractionated from 5 x 5 Gy to 2 x 12.5 Gy in transbronchial brachytherapy. Complications were generally mild in all patients, although focal radiation pneumonitis was observed in most patients. Primary recurrence occurred in three patients, including one with a T2 tumor and one treated by brachytherapy as a salvage treatment for recurrence after conformal radiotherapy. When brachytherapy is evaluated as a primary treatment for T1 N0 M0 NSCLC, local control rate is 88.9% and estimated 5-year survival rate is between 60% and 70%. CONCLUSION: Brachytherapy has a potential to be a method to treat peripheral T1 N0 M0 NSCLC.
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