جستجوی مقالات مرتبط با کلیدواژه « Brachiocephalic Trunk » در نشریات گروه « پزشکی »

Anatomical variations in the branching pattern of arch of aorta are significant for diagnostic, surgical, and interventional procedures of the thorax and neck, and failure to recognize these patterns may have fatal outcome. Hence the present study aims to determine the percentage and type of aortic arch variations.

This cross-sectional study was conducted on 30 formalin-fixed stillborn human fetuses of 35 weeks gestational age and above, in the Department of Anatomy, RIMS, Imphal, Manipur from 2018 to 2020. stillborn human fetuses were collected from the Obstetrics and Gynecology Department of RIMS, Imphal, Manipur, after taking due consent from parent. Fetus with gross abnormality and weighing less than 2.5 kg were excluded. whereas above 2.5 kg weight fetuses were included. The variations in the branching pattern of aortic arch were observed, noted and photographed. The variations were according to the classification by vicurevic et al., 2012.

The classical pattern of three branches of the arch of aorta were seen in 23 (76.66%) cases in the present study. In the remaining 7 (23.33%) cases, two different types of variations were observed with four and two branches arising in five and two cases respectively.

Knowledge of normal anatomy and frequency in the variations in the branching pattern of the arch of aorta in the present study can be of significance for clinicians.

The branch anatomy of the aortic arch varies widely between individuals. These are likely due to alterations in the development of aortic arch arteries during the embryonic period. The purpose of this study is to determine the frequency of the aortic arch branch variations in the local population and provide useful data to intervention radiologists, neck and thoracic surgeons. In this study, branching pattern of the aortic arch in 226 patients was retrospectively evaluated by MR angiography. MRA performed on a high field 3 Tesla MRI scanner using 3D flash sequence. The normal aortic arch branching pattern was observed in 192 patients (84.9%). Also, three variations of the aortic arch branching pattern were observed. The aortic arch in 12.4% of the patients had two arterial branches. In 0.9% of cases, the left vertebral artery originated directly from the aortic arch. In 1.8% of cases, the right subclavian artery originated as the fourth aortic arch branch. Although the number of cases with aortic arch branches variation in our study is similar to other studies, the Bovine aortic arch variation is more common than other variations of aortic arch branches.