Lin Hung-Lin, Lee Han-Chung, Cho Der-Yang
Department of Neurosurgery, China Medical University Hospital, Taichung, Taiwan, R.O.C.
J Chin Med Assoc. 2007 Jan;70(1):36-8. doi: 10.1016/S1726-4901(09)70299-0.
Transorbital brain injuries caused by metal bar penetration are uncommon and often cause serious damage without prompt treatment. Artifacts caused by the penetrating metal bar on computed tomography (CT) often obscure the actual brain damage along the path of penetration, and delayed treatment for the brain insult may result. We present 2 cases of transorbital brain injury following penetration by a metal bar. CT scans were initially performed on both patients. However, image resolution was poor and the extent of brain damage could not be ascertained due to severe artifacts associated with the metal bars. Both patients deteriorated in the emergency room and subsequently received surgical intervention. One patient recovered uneventfully. Unfortunately, the other patient died following surgery due to an unrecognized intracranial hemorrhage with brain herniation. Based on this experience, we recommend prompt surgical decompression with early CT follow-up to determine the true extent of brain damage and assess for possible delayed events inpatients with extended transorbital brain injuries caused by metal bars.
金属棒穿透所致经眶脑损伤并不常见,若不及时治疗常造成严重损害。计算机断层扫描(CT)上穿透金属棒引起的伪影常掩盖沿穿透路径的实际脑损伤,可能导致对脑损伤的治疗延迟。我们报告2例金属棒穿透后经眶脑损伤的病例。最初对两名患者均进行了CT扫描。然而,由于与金属棒相关的严重伪影,图像分辨率差,无法确定脑损伤的程度。两名患者在急诊室病情恶化,随后接受了手术干预。一名患者顺利康复。不幸的是,另一名患者术后因未被识别的颅内出血伴脑疝而死亡。基于这一经验,我们建议对金属棒所致经眶脑损伤范围较广的患者进行及时的手术减压,并早期进行CT随访,以确定脑损伤的真实程度,并评估可能出现的延迟性事件。