title: [Changes in the lungs in radiation treatment of head and neck tumors].
abstract: A study was made of the roentgenomorphological and roentgenofunctional appearance of pulmonary lesions in 120 patients with head and neck tumors during radiation therapy. Laryngeal cancer was diagnosed in 56 patients, cancer of the oral cavity in 48, and neck tumors in 16 patients. X-ray examination was done 1 month before and after the termination of gamma-beam radiotherapy, the summary focal doses varying from 40 to 75 Gy. The chief modes of lung examination were roentgenography and roentgenopneumopolygraphy. It was established that even before treatment the patients had latent signs of respiratory insufficiency. Radiotherapy, irrespective of the summary focal dose value, had a mediated effect on the lungs. One month after the discontinuation of radiotherapy the pulmonary pattern changed: its elements were enhanced and dilated, the general biomechanism of respiration impaired, particularly at the expense of reducing the respiratory mobility of the diaphragm and mediastinum, disorders of the bronchopulmonary ventilation increased. A multimodality x-ray study including roentgenopneumopolygraphy helps to detect in time regional disorders of lung function which is very important for prevention of lung complications.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006258:Head and Neck Neoplasms / Q000503:physiopathology / Q000532:radiotherapy*; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000528:radiation effects*; D008297:Male; D008875:Middle Aged; D011832:Radiation Injuries / Q000000981:diagnostic imaging / Q000209:etiology / Q000503:physiopathology*; D011859:Radiography; D012129:Respiratory Function Tests; D013997:Time Factors
vernacular_title: Izmeneniia v legkikh pri luchevom lechenii opukholeĭ golovy i shei.