D'Souza, Anne and Ankolekar, Vrinda Hari and Das, Aswin and Padmashali, Supriya and D’Souza, Antony Sylvan and Mamatha, H (2015) Determination of inter-bronchial and subcarinal angles in fetuses of different gestational age and their clinical implication. Muller Journal of Medical Sciences and Research, 6 (2). pp. 129-132. ISSN 0975-9727

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Abstract

Introduction: The trachea-bronchial angles in the human fetus are of increasing relevance in perinatal medicine to determine both normal and pathological criteria. The present study was undertaken to calculate the inter-bronchial angle using a novel method by an image analyzer at different gestational ages. Materials and Methods: The present study was carried out using 24 human fetuses in the department of Anatomy, Kasturba Medical College, Manipal. The right and left bronchial, inter-bronchial and subcarinal angles were calculated by using an image analyzer named Image J. Results: The right bronchial angle ranged from 21.99° to 43.96°. The left bronchial angle ranged from 29.48° to 56.21°. The inter-bronchial angle ranged from 60.53° to 100.86°. Student t test was applied to compare the means of bronchial angles between the second and third trimesters which did not show any statistical significance. The subcarinal angle ranged from 41.69° to 74.88° with an average of 61. 15 ± 9.73°. Conclusion: The present study analyses the inter-bronchial and subcarinal angles in different GA, the knowledge of which would be essential to understand the developmentaln changes of the respiratory passages.

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