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Science articles
Science articlesThe specific features of the upper respiratory tract parameters in the patients with β-thalassemia major
R. V. Shadlinskaya (1)
(1) Azerbaijan Medical University, Baku, AZ1078, Azerbaijan
UDK: 616.716.4-071.3
DOI: https://doi.org/10.18692/1810-4800-2019-3-59-64
ABSTRACT
The objective of the study is to determine the specific features of the upper respiratory tract parameters in the patients with β-thalassemia major. Material and methods: The study material consisted of lateral cephalograms of 17 patients with β-thalassemia major (the average age 17.1±1.2 years). The control group included 17 patients with Angle class 1 neutral occlusion with ANB 0-2º (the average age 16±0.9 years). The anthropometric parameters estimation was carried out by means of the software “Dolphin – Imaging 11.9” using “Quas/Airway analysis”. Results: In the patients with β-thalassemia major, a significant decrease in the following parameters was found: the mandibular angle SNB (P <0.001), the upper anterior height of the face N-ANS (P <0.05) and the posterior height of the face Go-CF (P <0, 05), the length of the tongue (P < 0.05), the length of the soft palate PNS–V (P < 0.05), the vertical respiratory tract length (P < 0.001), upper, middle (P < 0.05) and lower respiratory tract width (P < 0.01). The hyoid bone in the patients with β-thalassemia major is shifted up and back and is located closer to the lower border of the mandible than in the control group patients. Conclusion: in the patients with β-thalassemia major, the distal position of the mandible in relation to the base of the skull and the increase of inter-jaw angle ANB is accompanied with the narrowing of lumen of all parts of the upper respiratory tract. Cephalometric upper respiratory tract analysis is important in predicting the development and the progress of the upper respiratory tract pathology and orthodontic treatment in the patients with β-thalassemia major.
Publication date:
18.06.2019
Keywords:
thalassemia, cephalometry, upper respiratory tract parameters, mandible position. For citation:
Shadlinskaya R. V. The specific features of the upper respiratory tract parameters in the patients with β-thalassemia major. Rossiiskaya otorinolaringologiya. 2019;18(3):59–64. https://doi.org/ 10.18692/1810-4800-2019-3-59-64