Traumatic anterior cerebral artery aneurysms and management options in the endovascular era.

Traumatic anterior cerebral artery (ACA) pseudoaneurysms are a challenge to manage. Difficult diagnosis, delayed presentation and catastrophic outcomes contribute to the overall prognosis of traumatic intracranial aneurysms. Clipping or coiling of the aneurysm and/or parent vessel occlusion are the treatment options. However, surgery and coiling both may be difficult due to limited access and the need for parent vessel preservation. Rarely, these aneurysms must be managed conservatively. We present four patients with traumatic ACA aneurysms admitted to our center in the last 10 months. Three patients had pseudoaneurysms of the distal ACA and one had an aneurysm arising from a cortical branch of the ACA. Their clinical presentations and management, along with outcomes, are discussed as well as the dilemmas associated with them. Three patients were managed by clipping and coiling while one was managed conservatively. The diagnosis was made relatively early in three patients while delayed subarachnoid hemorrhage led to diagnosis in the fourth. Although the overall prognosis remains grim, with high mortality and morbidity rates, both microsurgical and interventional management of these traumatic aneurysms may be useful, if detected early before rupture. Expectant management and surveillance may be required in a select group of patients.

Thoracic cord herniation and associated intra-operative nuances: a report.

BACKGROUND: Thoracic cord herniation is a well-established entity in the literature. Majority of the published literature deals with its surgical management in terms of "mere" detethering of cord. However, not much is written about the degree of herniation and ectopic cord tissue and its management. A 58-year-old male presented to us with progressive difficulty in walking. Imaging revealed a cord herniation at T7-8 level. Surgical detethering was planned. However, a significant amount of "ectopic" cord tissue was found outside the dural defect intra-operatively. Simple detethering and repositioning was difficult. Hence, the ectopic tissue was excised under neuro-physiologic monitoring and no major change was recorded intra-operatively/post-operatively. CONCLUSIONS: Thoracic cord herniation surgery may be more than simple detethering and cord repositioning. If encountered in similar situations intra-operatively, surgeons should be able to excise ectopic tissue without grave post-operative deficits. Neuronal plasticity probably plays an important role in the pathophysiology of long-standing cord herniation.