[Brain aneurysms treatment with pCONus2 device. Initial experience at IMSS].

Background: pCONus2 device has been used in some countries as coadyuvant in the treatment of wide-neck bifurcation aneurysms with coils.

Objective: To present the first series of brain aneurysms treated with pCONus2 in the Mexican Institute for Social Security (IMSS).

Material And Methods: We retrospectively present the first 13 aneurysms treated from October 2019 to February 2022 with pCONus2 device at a third level hospital.

Intracranial aneurysms in pediatric population treated with flow diverters: A single-center experience.

Background: Pediatric intracranial aneurysms (PIAs) are uncommon. Flow diverters (FDs) have shown to be effective on treatment of selected aneurysms.

Methods: We describe 10 cases of PIAs treated with FDs at one medical center in Mexico, from April 2015 to April 2020.

Intramedullary cervical spinal cord and cerebellar hemangioblastoma: A case report.

Background: Hemangioblastomas are benign tumors that develop in the central nervous system. They represent 1.5-2.

[Not Available].

Objective: To establish the frequency and results in patients carriers with multiple aneurysms (MA) treated by microsurgery and/or neurological endovascular therapy (NET) in the Hospital of Specialties on The National Medical Center La Raza.

Method: It is an ambispective, descriptive and longitudinal study that includes patients carriers of MA treated in the National Medical Center La Raza from March the 1 of 2009 to April the 30 of 2014.

Results: 62 patients carriers of 151 aneurysms were treated.

[Endovascular treatment of spinal dorsal intradural arteriovenous fistulas].

Background: The dorsal spinal intradural arteriovenous fistulas (DSIAF) are infrequent and complex injuries are underdiagnosed condition and disability. The aim is to present our experience in the endovascular management.

Methods: A retrospective and prospective study of patients with DSIAF treated by endovascular therapy (EVT) with n-butyl-cyanoacrylate during the period 2007-2013.

[Invasive management of trigeminal neuralgia. 8 years experience].

Background: Trigeminal neuralgia (TN) is characterized by stereotyped repetitive, unilateral pain, referred as an electric shock, triggered by the stimulation of the rami of the trigeminy nerve. It presents more frequently in women. The aim is to know the efficacy of surgical treatment of TN against pain by means of microvascular decompressive technics (MDT) and balloon percutaneous microcompression (BPM).

[Endoscopic third ventriculostomy for chronic communicating hydrocephalus in adults].

Background: Shunt devices to treat hydrocephalus are associated with a malfunction of 81 % at 12 years and 10 % of infection. The objective was to assess safeness and efficacy of endoscopic third ventriculostomy (ETV) for the treatment of chronic communicating hydrocephalus.

Methods: Eight patients with chronic communicating hydrocephalus were included in a period between September, 2012 and April, 2013.

Contralateral transvenous approach and embolization with 360° guglielmi detachable coils for the treatment of cavernous sinus dural fistula.

carotid-cavernous fistulas are spontaneours acquired connections between the carotid artery and the cavernous cavernous sinus, being classified as direct or indirect; being usually diagnosed in postmenopausal women, but are also associated with other pathoogies such as pregnancy, sinusitis and cavernous sinus thrombosis. They are clinically characterized by ophthalmological symptoms and pulsatile tinnitus. A 51-year-old woman who started her current condition about 4 years ago with pulsatile tinnitus, to which were added progressively: Pain, conjunctival erythema, right eye proptosis and the occasional headache of moderate intensity.

[Treatment of endovascular aneurysms associated with fenestration of the basilar artery. A case report].

The fenestration of the basilar artery is an uncommon anatomical variant that may be associated with saccular aneurysms; however this association is rare. We report the case of a patient who presented with subarachnoid hemorrhage that was successfully treated by coil embolization and review the literature.

[Endovascular management of cavernous sinus dural fistulas].

Objective: Describe the outcomes of patients diagnosed with indirect carotid-cavernous fistula treated by endovascular methods.

Design: A retrospective case series.

Participants: Twelve patients with dural cavernous sinus fistula with important ophthalmologic involvement admitted and treated at the National Institute of Neurology and Neurosurgery between February 1990 and January 2005.

[Endovascular management of residual intracranial aneurysms after surgical clipping].

Objectives: To identify and evaluate the cerebral aneurysm remnants after clipping and the endovascular treatment in our institution.

Methods And Materials: We made a clinical ambispective collection of all aneurysms microsurgically clipped during four years and we analyzed their endovascular treatment.

Results: There were 290 cerebral aneurysms; in 270 a digital subtraction angiography was made.

[Trigeminal-cavernous fistula. Report of a case and review of the literature].

Persistent primitive trigeminal artery is a rare anatomical variant resulting from the absence of obliteration of the embryonic trigeminal artery. The shunt between the persistent primitive trigeminal artery and the cavernous sinus is called trigeminal-cavernous fistula. We report the case of a woman with a trigeminal-cavernous fistula secondary to head trauma who was treated by transarterial embolization.

[Epidermoid neoplasm of the fourth ventricle. Report of two cases].

Background: epidermoid neoplasm (EN) accounts for 1 % of whole intracranial neoplasms. Usually, it is found at the cerebello-pontine angle and the location in the fourth ventricle (FV) is rare. The aim was to report two cases of EN of the FV.

[Device for percutaneous insertion of a distal catheter in ventriculo-atrial shunt. Technical report].

Introduction And Objectives: A ventriculo-atrial shunt is indicated for the treatment of some hydrocephalus cases. The distal catheter is usually inserted into the right atrium through cervical venous dissection. Percutaneous insertion has been described with success; however its use is not widespread.

[Endovascular treatment of non-galenic pial arteriovenous fistulas].

Introduction And Objectives: Pial arteriovenous fistulas are infrequent vascular malformations. They are generally congenital and their natural history is ominous. The objective of this work is to describe our experience in their endovascular management and to review the existing literature.

[Endovascular approach in the management of intracranial aneurysms. Part 2: indications and therapeutic strategy].

The success and stability of the occlusion of intracranial aneurysms can be achieved after an adequate conceptualization and implementation of current endovascular techniques, which in turn should be based on knowledge of available devices and the analysis of the specific characteristics the aneurysm and its parent artery to what we called aneurysmal complex.

[Endovascular approach in the management of intracranial aneurysms. Part 1: basic concepts and devices].

Neurological endovascular therapy is a discipline that has shown effectiveness and safety in the management of intracranial aneurysms, however recanalization persists as one of the most important obstacles to overcome. Precise knowledge of the anatomy and hemodynamics of the aneurysm and the parent artery as well as currently available endovascular devices, are decisive in the analysis and to design a specific treatment plan for each case. In this manner we ensure, as long as possible, success and durability of the treatment.

[Traumatic arteriovenous pial fistula masquerading as a carotid-cavernous fistula: an uncommon disorder with an unusual presentation].

Traumatic intracranial pial arteriovenous fistulae are infrequent lesions. Their cardinal signs have been related to mass effect and hemorrhage, but their clinical manifestations due to venous retrograde flow into ophthalmic veins has never been described. This phenomenon is usually seen in dural arteriovenous fistula draining to the cavernous sinus or carotid-cavernous sinus fistula.

[Endoscopic endonasal transsphenoidal approach for growth hormone-producing pituitary adenomas. Preliminary results].

Background: An endoscopic endonasal transsphenoidal approach is reported as less invasive, allowing an earlier discharge. Published series have never focused on its use in acromegalic patients.

Objective: To assess the effectiveness of an endoscopic endonasal transsphenoidal approach in the management of growth hormone-secreting adenomas.

[Chronic nasal obstruction: ethmoidal encephalocele in an adult patient].

Nasal obstruction is a frequent cause of referral to the ear, nose and throat specialist. When this symptom is resistant to medical management and common causes have been ruled out, the presence of neural structures should be investigated In the nasoethmoidal meningoencephalocele, a congenital defect of the ethmoid lamina cribrosa allows the herniation of the intracranial contents into the nasal fossa. The key to clinical diagnosis is the presence of nasal obstruction with rhinorrhea and recurrent meningitis.

[Endovascular management of carotid atherosclerosis. Section II: current therapeutic approaches and limitations].

Carotid endarterectomy has for long been regarded as the gold standard for the management of symptomatic atherosclerosis of the carotid bifurcation, and carotid angioplasty is merely considered a secondary alternative reserved to surgically high-risk patients. However, several studies have shown that the efficacy of carotid angioplasty has equaled that of carotid endarerectomy and additionally provides unshared advantages: local anesthesia is sufficient, the whole extracranial and intracranial carotid circulation are amenable to treatment and wound-related complications are not seen. Besides a thorough review of the main published studies comparing both techniques, we provide updated criteria for the endovascular management of carotid artery disease, discussing their benefits and limitations.

[Endovascular management of carotid atherosclerosis. Section I: basic considerations and diagnostic elements].

Carotid atherosclerosis accounts for about 25 % of all ischemic cerebrovascular events. A thorough knowledge of the pathophysiology of the plaque and its clinical consequences are fundamental elements for a well-balanced approach of the management of the disease. The evolution of the imaging techniques allow to visualize the plaque and the analysis of its structure and characteristics.