8. Hình thái học tổn thương tụ máu quanh động mạch cảnh trong chết ngạt treo cổ

Abstract

This was a cross-sectional study of 201 cases of asphyxia by suicidal hanging to investigate the histopathology of haemorrhage around the carotid artery and the contributing factors. There were 81 cases of hematoma around the carotid artery where the carotid artery contralateral to the knot site was the most vulnerable (74 cases - 91.4%). The easiest location to detect carotid artery lesion is just below the ligature mark (72.8% representing 59 cases). Microscopically, there were 98 cases of haemorrhage in the connective tissue around the carotid artery, 7 cases of rupture of the inner layer, 9 cases of damage to both the inner and middle layers, 4 cases of damage to the three layers of the carotid artery. The macroscopic lesions have a close relationship with the microscopic visibility, therefore it is necessary to collect microscopic samples to fully evaluate the damage of the carotid artery. We concluded that age, skin injury, muscle, and obesity are relative factors causing hematoma damage around the carotid artery (high statistical value p < 0.001).