Carlos A. David

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OBJECT This study was undertaken to evaluate the long-term angiographic outcome of surgically treated aneurysms, which is unknown. Specifically, the incidence of recurrent aneurysms, the fate of residual necks, and the de novo formation of aneurysms were evaluated. METHODS One hundred two patients (80 females and 22 males; mean age 49 years; range 12-78(More)
The natural history of giant intracranial aneurysms are grave. More than 50% of patients suffer from rupture of these aneurysms and mortality is >60% in 2 years. Modern technology and advancement of knowledge in neurosurgery and interventional neuroradiology have altered its natural course for the better. As many reports have shown, the majority of these(More)
BACKGROUND The yield of head computed tomography (CT) for patients who suffered head trauma with a presenting Glasgow Coma Scale (GCS) score of 15 has been reported to be low, even in patients who are anticoagulated or on antiplatelet therapy. We undertook this study to (1) determine the frequency of intracranial hemorrhage in anticoagulated patients and(More)
The filum terminale is an anatomic structure at the end of the spinal cord. Only a few cases of AVFs of the filum terminale have been reported. These AVFs usually consist of a single communication between the anterior spinal artery and a single draining vein. We retrospectively analyzed the clinical and radiologic features and treatment of 4 patients with(More)
BACKGROUND AND PURPOSE Dissecting aneurysms of the distal segment of the PICA are rare. The purpose of this study was to evaluate the clinical presentations, imaging features, treatment options, and clinical outcomes of dissecting PICA aneurysms. MATERIALS AND METHODS Six patients with dissecting aneurysms in the distal segments of PICA were found in the(More)
OBJECTIVE Lesions situated posterolaterally along the mesencephalon present neurosurgeons with a special challenge. The midline and paramedian variations of the supracerebellar infratentorial approaches do not adequately expose this region. The subtemporal approach risks injury to the vein of Labbé. An extreme lateral supracerebellar infratentorial approach(More)
Cobb syndrome represents the concurrent findings of a metameric spinal vascular malformation and a cutaneous vascular malformation within several dermatomes of each other. This rare entity engenders many difficult decisions with respect to appropriate therapeutic management. Historically, surgical excision carried a high morbidity, and conservative(More)
We report a case of a cerebral arteriovenous malformation presenting as a pseudotumor cerebri syndrome. The lack of mass effect, hemorrhage, or hydrocephalus, in addition to angiographic evidence of high-flow and venous outflow restriction, implicate increased cerebral blood flow and venous hypertension as the mechanism for the papilledema. This case(More)
To our knowledge, there are currently no published reports that describe the postoperative evolution of abnormal blood vessels associated with spinal nerve root hemangioblastomas. We present a patient with a hemangioblastoma that was completely resected. Follow-up imaging revealed complete resolution of the abnormal blood vessels. We hypothesize that(More)
INTRODUCTION Surgical management of traumatic internal carotid artery (ICA) dissection remains controversial. Therefore, the delayed outcomes and graft patency rates of patients who underwent bypass procedures for symptomatic traumatic ICA dissection were studied. METHODS Between September 1989 and August 1996, 13 patients (9 male and 4 female patients;(More)