en Other Other پژوهشي orginal article <span style="font-size:12pt"><span style="line-height:16.0pt"><span style="font-family:&quot;Times New Roman&quot;,&quot;serif&quot;"><b><i><span style="font-size:9.0pt">Background & Aims</span></i></b><b><span style="font-size:9.0pt">: </span></b><span style="font-size:9.0pt">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.</span></span></span></span><br> <span style="font-size:12pt"><span style="line-height:16.0pt"><span style="font-family:&quot;Times New Roman&quot;,&quot;serif&quot;"><b><i><span style="font-size:9.0pt">Materials & Methods:</span></i></b><b> </b><span style="font-size:9.0pt">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.</span></span></span></span><br> <span style="font-size:12pt"><span style="line-height:16.0pt"><span style="font-family:&quot;Times New Roman&quot;,&quot;serif&quot;"><b><i><span style="font-size:9.0pt">Results:</span></i></b><b> </b><span style="font-size:9.0pt">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.</span></span></span></span><br> <span style="font-size:12pt"><span style="line-height:16.0pt"><span style="font-family:&quot;Times New Roman&quot;,&quot;serif&quot;"><b><span style="font-size:9.0pt">Conclusion: </span></b><span style="font-size:9.0pt">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.<b> </b></span></span></span></span><br> <span style="font-size:12pt"><span style="line-height:16.0pt"><span style="font-family:&quot;Times New Roman&quot;,&quot;serif&quot;"><b><span style="font-size:9.0pt"></span></b></span></span></span><br> &nbsp; Aortic Arch, Brachiocephalic Trunk, Left Common Carotid Artery, Left Subclavian Artery, Left Vertebral Artery 178 184 http://ijrabms.umsu.ac.ir/browse.php?a_code=A-10-329-1&slc_lang=en&sid=1 Leon R Guria drgsolan@gmail.com 10031947532846002891 10031947532846002891 No Assistant Professor, Department of Anatomy, Shija Academy of Health Sciences, Imphal, Manipur, India Kshemitra Rajkumari kshenista@gmail.com 10031947532846002892 0009-0001-2450-7696 No MBBS MD Anatomy, Assistant Professor, Department of Anatomy, Churachandpur Medical College, Chur Chandpur, Manipur, India Sangeetha Palani sangeethapalani4@gmail.com 10031947532846002893 10031947532846002893 No Assistant Professor, Department of Anatomy, St. Peter’s Medical College, Hospital and Research Institute, Hosur, Tamil Nadu, India Garima Sharma leonranjoline@gmail.com 10031947532846002894 10031947532846002894 Yes Assistant Professor, Department of Anatomy, DR RPGMC Kangra at Tanda, HP, India Aribam Jaishree Devi jaisaribam@gmail.com 10031947532846002895 10031947532846002895 No Professor, Department of Anatomy, Regional Institute of Medical Sciences, Imphal, Manipur, India