Carotid body tumors and neurogenic tumors at bifurcation of carotid artery：a control study        LI Guang-xin, XIN Shi-jie, ZHANG Jian, et al. Department of Vascular and Thyroid Surgery, the First Affiliated Hospital of China Medical University, Shenyang 110001, China
Corresponding author: XIN Shi-jie, E-mail: sjxin@cmu.edu.cn
Abstract    Objective    To explore the experiences for differential diagnosis and surgical treatment of carotid body tumors and neurogenic tumors at bifurcation of carotid artery. Methods    The clinical data of 16 cases of carotid body tumors and 14 cases of neurogenic tumors at bifurcation of carotid artery performed operation between November 2004 and June 2011 in the First Affiliated Hospital of China Medical University were analyzed retrospectively. The clinical manifestations, imaging features, surgical procedures and follow up of the cases were compared. Results    There is no statistical difference of age, sex, physical condition, clinical manifestation and size of tumors between two groups. The operating time ［（119±46）min］ and bleeding volume ［（230±127）mL］ of the former group were obviously larger than those ［（65±13）min，（89±38）mL］of the later group（P<0.05）. Fifteen cases of the former group had total tumor resection. Six of them had reconstruction of internal carotid artery using great saphenous vein graft. All cases of the later group had total tumor resection without occluding carotid artery. One case of the former group had minimal damage of hypoglossal nerve. One case of the former group had Horner syndrome after the operations. One case of the later group had hoarseness. Three cases of the later group had Horner syndrome after the operations. There was no difference in incidence of complication between two groups (P >0.05) . The hospital stay of the former group ［（17±7）d］ was longer than that of the later group ［（14±5）d］ （P>0.05）. Conclusion    The clinical manifestations of carotid body tumors and neurogenic tumors at bifurcation of carotid artery are similar. It’s difficult to diagnose exactly before operation. Surgical operation is an available treatment. A clear understanding of the disease and sufficient prepare before operation are key factors for successful treatment.