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Purpose: The aim of the study was to evaluate the short-term clinical, endoscopic response, and acute toxicities in endobronchial cancer treated with high-dose-rate endobronchial brachytherapy (HDR-EB). Materials and Methods: Thirty patients of advanced endobronchial cancers were treated with HDR-EB. Brachytherapy was delivered at a depth of 1 cm from the source axis at weeks 1, 2, and 3 with 7 Gy per fraction. All patients were evaluated before treatment and at 1 month after completion of therapy. Using Speiser's scoring criteria, the severity of symptoms (dyspnea, cough, hemoptysis, and postobstructive pneumonia) and degree of obstruction were graded. Results: Symptomatic response for cough, dyspnea, and hemoptysis was seen in 88%, 75%, and 96%, respectively, with a significant P value (&lt;0.05). Obstructive pneumonia was resolved in 94% of patients. Endoscopic response in terms of degree of obstruction was seen in 84% of patients. Acute toxicities in the form of radiation bronchitis were seen in 32% of patients, whereas 8% of patients experienced esophagitis. Bronchospasm was seen in one patient during treatment. Conclusion: HDR brachytherapy is a highly effective, safe, convenient therapy in alleviating symptoms of endobronchial obstruction with endoscopic response in the majority of cases. Thus, HDR-BT is a promising treatment for palliation of patients presenting with symptoms of endobronchial obstruction with an acceptable rate of complications.

Clinical and endoscopic response to high dose rate endobronchial brachytherapy in malignant lung tumors: A single centre experience