[Progressive Brown-Sequard syndrome secondary to idiopathic spinal cord herniation: clinico-radiological and surgical correlations]. / Síndrome de Brown-Séquard progresivo secundario a hernia medular idiopática: correlación clinicorradiológica y quirúrgica.

INTRODUCTION: Idiopathic medullary herniation is an infrequent disease, which shows up in clinical form as a progressive mielopathy, most commonly known as the Brown-Sequard syndrome. Its anatomical base is a dural defect where a portion of anterior spinal cord gets progressively incarcerated. The MRI and myelo-CT scan show a bending of the spinal cord in the form of a «bell tent¼ towards the anterior dural sheath at the mid-dorsal portion mainly. CASE REPORT: A 37 year old male, who was diagnosed of idiopathic medullary herniation and surgically treated by our own developed technique, reporting its neuroradiological, anatomo-surgical and clinical correlation. CONCLUSION: Treatment should be individualized, as no standard surgical technique has been established up to the present.

TITLE: Síndrome de Brown-Séquard progresivo secundario a hernia medular idiopática: correlación clinicorradiológica y quirúrgica.Introducción. La hernia medular idiopática es una patología infrecuente que cursa clínicamente con una mielopatía progresiva, la mayoría de las ocasiones en forma de síndrome de Brown-Séquard. Su base anatómica es un defecto dural por el que se incarcera progresivamente una porción del cordón medular anterior. La resonancia magnética y la mielotomografía demuestran un acodamiento medular en «tienda de campaña¼ hacia la cara anterior del estuche dural, a nivel dorsal medio fundamentalmente. Caso clínico. Varón de 37 años, diagnosticado de hernia medular idiopática e intervenido quirúrgicamente mediante una técnica propia; se demuestra su correlación neurorradiológica, anatomoquirúrgica y evolutiva. Conclusión. El tratamiento debe ser individualizado, pues no existe una técnica quirúrgica universalmente establecida.

Síndrome del uno y medio de Fisher a causa de un cavernoma bulbo-protuberancial / Fisher one-and-a-half syndrome due to a bulb protuberance cavernoma

El síndrome del uno y medio de Fisher está producido por una lesión unilateral en la parte dorsal e inferior de la protuberancia localizada específicamente en el tegmento pontino, área que contiene el fascículo longitudinal medial (FLM), la formación reticular paramediana pontina (FRPP) y el núcleo del VI par craneal, responsables de los movimientos horizontales de la mirada. Clínicamente se manifiesta con una parálisis conjugada de la mirada con oftalmoplejía internuclear ipsilateral. Se presenta el caso de una paciente de 60 años de edad que, tras presentar diplopía binocular, oftalmoplejía y parálisis de la mirada conjugada a la izquierda se realizaron estudios de imagen observándose un hematoma hemiprotuberancial secundario a un cavernoma. Tras conducta expectante presentó varios episodios de resangrados con empeoramiento clínico: cefalea, diplopía, tetraparesia e hipoestesia en hemicara derecha, por lo que ante tal evolución se planteó exéresis microquirúrgica del cavernoma protuberancial

The one and a half Fisher syndrome is produced by an unilateral lesion in the dorsal and inferior part of the pons located specifically in the pontine tegmentum. This is an area that contains the medial longitudinal fasciculus (LMF), the paramedian pontine reticular formation (PPRF) and the nucleus of the sixth cranial nerve, responsible for the horizontal movements of the gaze. Clinically it manifests with conjugate gaze palsy with internuclear ophthalmoplegia. The case is reported on a 60 year-old patient, who presented with binocular diplopia, ophthalmoplegia and paralysis of the gaze conjugated to the left. Imaging studies were performed that showed a hemi-protuberant haematoma secondary to a cavernoma. As expected, he presented with several episodes of re-bleeding with clinical worsening: headache, diplopia, tetraparesis, and hypoaesthesia in the right side of the face, as such that the microsurgical exeresis of the protuberant cavernoma was considered

Fisher one-and-a-half syndrome due to a bulb protuberance cavernoma. / Síndrome del uno y medio de Fisher a causa de un cavernoma bulbo-protuberancial.

The one and a half Fisher syndrome is produced by an unilateral lesion in the dorsal and inferior part of the pons located specifically in the pontine tegmentum. This is an area that contains the medial longitudinal fasciculus (LMF), the paramedian pontine reticular formation (PPRF) and the nucleus of the sixth cranial nerve, responsible for the horizontal movements of the gaze. Clinically it manifests with conjugate gaze palsy with internuclear ophthalmoplegia. The case is reported on a 60 year-old patient, who presented with binocular diplopia, ophthalmoplegia and paralysis of the gaze conjugated to the left. Imaging studies were performed that showed a hemi-protuberant haematoma secondary to a cavernoma. As expected, he presented with several episodes of re-bleeding with clinical worsening: headache, diplopia, tetraparesis, and hypoaesthesia in the right side of the face, as such that the microsurgical exeresis of the protuberant cavernoma was considered.

Historia de la Neurocirugía en el Hospital Provincial de Guipúzcoa / History of Neurosurgery at the Provincial Hospital of Guipuzcoa

El objetivo de esta reseña histórica es dar a conocer la evolución de la asistencia neuroquirúrgica en el Hospital Provincial de Guipúzcoa desde su creación en 1960 hasta su desaparición en 2000, tras la fusión de los Servicios y Hospitales en un único centro llamado inicialmente Complejo Hospitalario Donostia, actualmente bautizado con el nombre de Hospital Donostia (AU)

The purpose of this historical review is to make known the gradual development of neurosurgery at the Provincial Hospital of Guipuzcoa since its creation in 1960 until its disappearance in 2000, after the union of the Hospitals and Services in one single institution called firstly Donostia Hospital Complex, actually known by the name of Donostia Hospital (AU)

Complicaciones en el tratamiento percutáneo de la neuralgia de trigémino / No disponible

No disponible

Descripción de un caso y revisión de la bibliografía / Transoral decompression of the brain stem in a basilar impression secondary to rheumatoid arthritis. Description of a case and survey of the literature

Introducción. La subluxación vertical o traslocación odontoidea que produce una impresión basilar con compresión del tronco cerebral es un fenómeno evolutivo último de la artritis reumatoidea; la aparición de síntomas medulares y de pares bajos es un signo específico de dicha alteración. En esta situación, los objetivos quirúrgicos establecidos son la descompresión de las estructuras nerviosas afectadas seguida de una estabilización craneocervical. El objeto de este artículo es dar a conocer la mejoría del déficit neurológico tras una cirugía transoral descompresiva (odontoidectomía), sin asociar ningún sistema de fijación interna en una paciente con artritis reumatoide de larga evolución y compresión anterior del tronco cerebral por impresión basilar y panus reumatoideo. Tras revisar la literatura, no existe, excepto algún caso clínico aislado, ningún artículo donde se describa la evolución postoperatoria de la descompresión quirúrgica por vía anterior del tronco cerebral en pacientes con subluxación odontoidea reumatoidea, sin asociar ningún sistema de estabilización interna. Caso clínico. Mujer de 65 años de edad, diagnosticada de artritis reumatoide a los 25 años, que ingresa con síntomas de compresión bulbomedular secundarios a una subluxación vertical de odontoides. Se le practicó una descompresión transoral del tronco cerebral(odontoidectomía y extirpación de pannus sin fijación posterior), con una evolución postoperatoria sorprendentemente favorable. Realizó una vida independiente a los 15 meses de la descompresión quirúrgica. Conclusiones. La mejoría neurológica de nuestra enferma tras la odontoidectomía descompresiva sugiere que la compresión mecánica de la odontoides impactada en el tronco cerebral fue el factor etiológico predominante de los síntomas bulbomedulares, mientras que su estabilización clínica puede explicarse por un mecanismo de autofusión espontánea de las masas laterales del atlas con los cóndilos occipitales y con el axis. Finalmente, consideramos que, en casos seleccionados de pacientes reumatoideos con subluxación atloaxoidea, impactación de odontoides en foramen magno y clínica compresiva bulbomedular, la descompresión transoral del tronco cerebral mediante odontoidectomía es el procedimiento quirúrgico inicial de elección, con el que se consigue una mejoría neurológica y una estabilización clínica. En cualquier caso, es preciso un seguimiento postoperatorio neurológico y radiológico estricto ante la posibilidad futura de una fijación craneocervical (AU)

Introduction. The vertical subluxation or translocation of the odontoid process producing a basilar impression with compression of the brain stem is a late phenomenon in the course of rheumatoid arthritis; the appearance of symptoms in the spinal cord and the lower pairs of spinal nerves is a specific sign of this disorder. In this situation, the standard surgical aims are the decompression of the affected nerve structures followed by craniocervical stabilisation. The objective of this paper is to report on the improvement of the neurological deficit after decompressive transoral surgery (odontoidectomy), without associating any internal fixation system, in a female patient with a long history of rheumatoid arthritis and anterior compression of the brain stem caused by basilar impression and rheumatoid pannus. A survey of the literature showed that, with the odd isolated clinical case, there are no papers which describe the post-operative development of surgical decompression of the brain stem carried out through an anterior approach in patients with rheumatoid subluxation of the odontoid process, without associating any internal stabilisation system. Case report. Female aged 65, diagnosed as suffering from rheumatoid arthritis at the age of 25, who was admitted with symptoms of compression of the medulla oblongata secondary to a vertical subluxation of the odontoid process. She was submitted to transoral decompression of the brain stem (odontoidectomy and removal of pannus without posterior fixation), and made surprisingly favourable post-operative progress. At 15 months after the surgical decompression she led an independent life. Conclusions. The neurological improvement of our patient after the decompressive odontoidectomy suggests that the mechanical compression of the odontoid process with impaction of the brain stem was the predominant aetiological factor causing the symptoms in the medulla oblongata. Her clinical stabilisation, on the other hand, can be explained by a mechanism involving the spontaneous autofusion of the lateral masses of the atlas with the occipital condyle and with the axis. Lastly, we consider that, in certain cases of rheumatoid patients with atlantoaxial subluxation, impaction of the odontoid process in the foramen magnum and clinical features involving compression of the medulla oblongata, transoral decompression of the brain stem through an odontoidectomy is the choice initial surgical procedure, since it affords neurological improvement and clinical stabilisation. In any case, a strict neurological and radiological post-operative followup is needed in view of a possible craniocervical fixation occurring in the future (AU)

[Transoral decompression of the brain stem in a basilar impression secondary to rheumatoid arthritis. Description of a case and survey of the literature]. / Descompresion transoral del tronco cerebral en una impresion basilar secundaria a artritis reumatoidea. Descripcion de un caso y revision de la bibliografia.

INTRODUCTION: The vertical subluxation or translocation of the odontoid process producing a basilar impression with compression of the brain stem is a late phenomenon in the course of rheumatoid arthritis; the appearance of symptoms in the spinal cord and the lower pairs of spinal nerves is a specific sign of this disorder. In this situation, the standard surgical aims are the decompression of the affected nerve structures followed by craniocervical stabilisation. The objective of this paper is to report on the improvement of the neurological deficit after decompressive transoral surgery (odontoidectomy), without associating any internal fixation system, in a female patient with a long history of rheumatoid arthritis and anterior compression of the brain stem caused by basilar impression and rheumatoid pannus. A survey of the literature showed that, with the odd isolated clinical case, there are no papers which describe the post operative development of surgical decompression of the brain stem carried out through an anterior approach in patients with rheumatoid subluxation of the odontoid process, without associating any internal stabilisation system. CASE REPORT: Female aged 65, diagnosed as suffering from rheumatoid arthritis at the age of 25, who was admitted with symptoms of compression of the medulla oblongata secondary to a vertical subluxation of the odontoid process. She was submitted to transoral decompression of the brain stem (odontoidectomy and removal of pannus without posterior fixation), and made surprisingly favourable post operative progress. At 15 months after the surgical decompression she led an independent life. CONCLUSIONS: The neurological improvement of our patient after the decompressive odontoidectomy suggests that the mechanical compression of the odontoid process with impaction of the brain stem was the predominant aetiological factor causing the symptoms in the medulla oblongata. Her clinical stabilisation, on the other hand, can be explained by a mechanism involving the spontaneous autofusion of the lateral masses of the atlas with the occipital condyle and with the axis. Lastly, we consider that, in certain cases of rheumatoid patients with atlantoaxial subluxation, impaction of the odontoid process in the foramen magnum and clinical features involving compression of the medulla oblongata, transoral decompression of the brain stem through an odontoidectomy is the choice initial surgical procedure, since it affords neurological improvement and clinical stabilisation. In any case, a strict neurological and radiological post operative follow up is needed in view of a possible craniocervical fixation occurring in the future.

[Spontaneous syncope as the only sign of Arnold-Chiari type I malformations]. / Síncope espontáneo como único síntoma de la malformación de Arnold-Chiari tipo I. Base fisiopatológica.

We present a patient suffering from spontaneous recurrent syncopes as the sole symptom of Arnold-Chiari type I malformation. The syncopes were attributed to transient compression of neural and/or vascular structures at the cranio-cervical junction by the descended cerebellar tonsils, triggered by an increase in intracranial pressure. The disappearance of symptoms after posterior fossa decompression confirmed our hypothesis.

[Spontaneous cervical epidural hematoma. Apropos of a case]. / L'hématome épidural cervical spontané. A propos d'un cas.

We report one case of spinal epidural hematoma located in the cervical area, so-called spontaneous because this unknown etiology, extended over C3-C6, diagnosed by Computed Tomography, with complete recovery after surgical treatment accomplished 36 hours after the onset of symptoms. The clinical picture is characterized by sudden onset of severe cervical or interscapular pain, associated with radicular radiation into the upper extremities, followed by development of progressive signs of spinal cord compression with varying degree of motor and sensory paralysis. We emphasized the importance of an early diagnosis, easily possible with Computed Tomography. The CT findings are similar to intracranial acute epidural hematoma: showing a characteristic hyperdense lenticular collection, typically localized in the dorsolateral spinal epidural space. Computed Tomography appears to be the procedure of choice for preoperative diagnosis and for postoperative control. The surgical indication is absolute.