Neurosurgery
-
Case Reports
Endovascular treatment of giant intracranial aneurysms with willis covered stents: technical case report.
To evaluate the efficacy of endovascular treatment of giant intracranial aneurysms with Willis covered stents (Micro-Port, Shanghai, China). ⋯ The use of covered stents in intracranial vascular structures is a feasible method to treat selected cases of intracranial giant aneurysms. It is suggested that patients who present with compressive mass effect caused by large or giant aneurysms are the best candidates for covered stent placement, but potential complications should be considered carefully before the stenting procedure.
-
Patients with convexity and parasagittal (CPS) meningiomas treated with stereotactic radiosurgery (SRS) have been shown to be at risk for posttreatment symptomatic peritumoral edema (SPTE). We sought to analyze the pattern of this complication and compare it with the SPTE experienced in our patients treated with fractionated stereotactic radiotherapy. ⋯ Despite larger lesion volumes, fractionated stereotactic radiotherapy is associated with less risk of posttreatment SPTE than SRS for patients with CPS meningiomas in our series. For patients treated with SRS, smaller volume and dose <14 Gy seems to be safe. Longer follow-up will be required to compare late complications and tumor control rates in these patients.
-
For patients with internal carotid artery occlusion with advanced narrowing of the ipsilateral external carotid artery (ECA), we performed preventive carotid endarterectomy (CEA) for the ECA stenosis before superficial temporal artery (STA) to middle cerebral artery (MCA) anastomosis for internal carotid artery occlusion. ⋯ The present study suggests that surgical management by external CEA followed by STA-MCA anastomosis is safe and effective for patients with internal carotid artery occlusion and advanced stenosis of the ipsilateral ECA.
-
In rare cases, space-occupying pseudoarthrotic clavicular nonunion causes symptomatic brachial plexus compression. The surgical treatment of clavicular pseudoarthrosis has been extensively reported in the literature. This article reports our experience of a definitive treatment strategy using free vascularized fibula flaps in cases of persistent compression of the brachial plexus by relapsing bony nonunion mass lesions. ⋯ Recurrent space-occupying pseudoarthrosis of the clavicle complicated with neurovascular compression might warrant definitive reconstruction using a free vascularized bone flap.
-
Clinical Trial
Exploration and decompression of the spinal canal using split laminotomy and its modification, the "archbone" technique.
To develop a novel minimally invasive approach suitable for exploring different pathologies located in the spinal canal, allowing moderate enlargement of the canal with preservation of the majority of posterior structures so muscle attachments remain intact and postoperative complications are reduced. ⋯ This surgical approach fulfills the requirements of other laminotomy techniques and helps prevent damage to the crucial posterior stabilizers of the spine. In contrast to conventional spinal canal approaches, preservation of the majority of posterior structures leaves muscle attachments on the spinous processes and laminae completely intact. Furthermore, the technique for exposure and decompression of the spinal canal is a suitable method for all spinal segments, the cervical, thoracic, and the lumbar spine in all age groups.