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  • Title: Report on Pseudoaneurysm Caused by Injury of Internal Carotid Artery During Endoscopic Pituitary Surgery and Rebleeding After Treatment With Willis Covered Stent.
    Author: Xiao K, Chen YJ, Xu H, Zhang SJ, Chen L, Hu F, Li P, Chen Y, Shao Q.
    Journal: J Craniofac Surg; 2024 Jun 01; 35(4):1258-1260. PubMed ID: 38687036.
    Abstract:
    OBJECTIVE: Report on a case of pseudoaneurysm which was caused by injury of the internal carotid artery (ICA) during endoscopic endonasal surgery (EES), which was followed by rebleeding after treatment with a Willis covered stent. METHODS: A woman, aged 68, underwent EES for the treatment of a pituitary adenoma. During the surgery, the right ICA was injured, and successfully hemostasis by packed with cottonoid and gelatin sponge. Besides, cerebral angiography was performed in the interventional operating room for the purpose of discovering the formation of a pseudoaneurysm in the cavernous sinus segment of ICA, which was treated with a covered stent. After successfully placing the covered stent, the patient was promptly transferred to the general operating room for the removal of the cottonoid and to address the bleeding once again. The authors employ crushed muscles and cottonoid to locally compress and stop bleeding. Owing to concerns about the risk of rebleeding in the patient, after stent implantation, the patient did not utilize antiplatelet drugs. After the surgery, the patient developed occlusion of the right ICA and massive cerebral infarction in the right hemisphere. Dehydration, anti-infection, rehabilitation, hyperbaric oxygen, as well as related treatments, were given. The cottonoid was removed in EES 2 months postsurgery, and no instances of bleeding were observed. Six months after surgery, the patient had clear consciousness and hemiplegia in the left limb, with a Glasgow Outcome Scale score of 4. RESULTS: The ICA was injured during EES, which resulted in the formation of a pseudoaneurysm, the Willis stent was adopted for treatment, and there was a risk of rebleeding after the nasal packing (cottonoid, crushed muscles) was removed immediately. CONCLUSIONS: The ICA was injured during EES after bleeding was controlled by packing with cottonoid, crushed muscles, etc, subsequently, the patient was given intravascular treatment, it is advised to make thorough preparations and, after a suitable period, remove nasal packing in the hybrid operating room to address unexpected situations and unforeseen circumstances.
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