Department of Companion Animals, Atlantic Veterinary College, University of Prince Edward Island, 550 University Avenue, Charlottetown, Prince Edward Island C1A 4P3 (O'Carroll, Welch, Walker, Ogilvie, Hoddinott); VetCT, 21 JJ Thomson Avenue, Cambridge CB3 0FA, United Kingdom (Gaschen).
Can Vet J. 2024 May;65(5):437-442.
A young miniature poodle was presented following blunt force trauma to the head. The dog initially responded well to medical management before developing clinical signs associated with increased intracranial pressure 48 h post-injury that became refractory to hyperosmolar therapy. A computed tomography scan obtained 76 h post-injury showed a short, oblique, non-displaced, complete fissure in the right temporal bone and a second short, oblique, non-displaced, complete fissure in the ventral aspect of the temporal bone. A biconvex, moderately hyperattenuating, space-occupying temporoparietal lesion was visualized immediately adjacent to the area of the temporal fractures. These findings were consistent with a diagnosis of intracranial extradural hematoma. Decompressive craniectomy successfully evacuated the extradural hematoma to alleviate increased intracranial pressure. The dog's neurologic function recovered quickly postoperatively. At follow-up physical examinations at 14 and 437 d, excellent return to function was noted. Key clinical message: This report describes the diagnosis and surgical management of an intracranial extradural hematoma in a dog with increased intracranial pressure refractory to medical management. Furthermore, this report describes the diagnostic imaging findings used to diagnose this particular form of primary brain injury.
一只年幼的迷你贵宾犬因头部受到钝力外伤而就诊。该犬最初对药物治疗有反应，但在受伤后 48 小时出现与颅内压升高相关的临床症状，对高渗治疗产生抵抗，之后进行了计算机断层扫描检查。在受伤后 76 小时的 CT 扫描显示右颞骨有一处短而斜的无移位完全性裂缝，颞骨腹侧面还有第二处短而斜的无移位完全性裂缝。在颞骨骨折区域附近可见一个双凸、中度高信号、占位性颞顶病变。这些发现与颅内硬脑膜外血肿的诊断一致。减压性颅骨切除术成功清除硬脑膜外血肿以缓解颅内压升高。术后犬的神经功能迅速恢复。在 14 天和 437 天的随访体检中，观察到功能恢复良好。关键临床信息：本病例报告描述了 1 例因药物治疗无效而导致颅内压升高的犬颅内硬脑膜外血肿的诊断和手术治疗。此外，本病例报告还描述了用于诊断这种特定类型原发性脑损伤的影像学表现。
