28 research outputs found
Insuficiencia venosa cerebroespinal crónica y esclerosis múltiple: revisión y actualización del tema
The aetiology of multiple sclerosis remains unknown at the present time, although
the most likely explanation is that it has an autoimmune inflammatory origin.
During the history of this disease a vascular pathophysiology was once proposed,
and it has recently re-emerged as a result of the work by Paolo Zamboni with the
name of 'chronic cerebrospinal venous insufficiency'. Following this hypothesis,
Zamboni puts forward a curative treatment for multiple sclerosis by means of
endovascular treatment of the internal jugular vein and the azygos vein. However,
several teams have attempted to replicate his findings without success. In this
review, we offer a chronological description of the studies carried out by
Zamboni and the later attempts to replicate his work. Our main conclusion is
that, given the results we currently have available, we should be cautious and,
for the time being, it would be advisable not to recommend the systematic use of
this treatment for our patients
Utilidad de las secuencias potenciadas en susceptibilidad paramagnética (SWI) para diferenciar crisis somestésicas de accidentes isquémicos transitorios en un paciente con angiopatía amiloide cerebral
Background. Cerebral amyloid angiopathy (CAA) is
characterized by the deposit of β-amyloid on the walls
of small and medium-sized arteries of the cerebral cortex
and leptomeninges causing cerebral bleeding. Clinical
presentations may include transient neurological
events for which differential diagnosis can be difficult.
Case report. We report a subject with a medical history
of recent stroke who presented somesthetic seizures
mimicking transient ischemic attacks owing to CAA
microbleeding. Antiplatelet treatment was reduced and
after lamotrigine was commenced the episodes disappeared.
Susceptibility-weighted magnetic resonance
imaging was very helpful for diagnosis (SWI-MRI).
Conclusions. CAA microbleeding can be manifested in
the form of seizures mimicking focal transient sensitive
neurological deficits that can be erroneously attributed
to cerebral ischemia. The present case report suggests
that, despite the presence of a past medical history of
strokes, neurologists should consider CAA microbleeding
as a possible cause of pseudo-transient ischemic
attacks. High-resolution neuroimaging including SWIMRI
imaging can be helpful in identifying cortical microbleedings.
In this way, the start or increase of antiplatelet
treatment can be avoided, and the risk of potentially
fatal complications minimize
Monitorización con vídeo-EEG y ECG simultáneo para el diagnóstico diferencial de trastornos de conciencia transitorios. A propósito de un caso
We present the case of a 36 year-old woman, with history of transient
consciousness disorders with vegetative state, interpreted as epileptic crises
and treated with valproate for two years. After nine asymptomatic years, they
reappeared associated with migraine, vomiting and some generalized convulsions.
Electroencephalogram and cerebral magnetic resonance turned out normal, and
treatment with zonisamide was started, without beneficial results. Later
cardiological studies objectified a blockage of the left branch that coincided
with dizziness. The study was completed with Video-EGG monitoring, where there
was an episode that showed temporary right epileptiform activity, with a
diagnosis established of focal epilepsy of unknown cause. At present, she remains
asymptomatic with oxycarbazepine
Gray Matter Changes in Parkinson's and Alzheimer's Disease and Relation to Cognition
Purpose of Review We summarize structural (s)MRI findings of gray matter (GM) atrophy related to cognitive impairment in Alzheimer's disease (AD) and Parkinson's disease (PD) in light of new analytical approaches and recent longitudinal studies results. Recent Findings The hippocampus-to-cortex ratio seems to be the best sMRI biomarker to discriminate between various AD subtypes, following the spatial distribution of tau pathology, and predict rate of cognitive decline. PD is clinically far more variable than AD, with heterogeneous underlying brain pathology. Novel multivariate approaches have been used to describe patterns of early subcortical and cortical changes that relate to more malignant courses of PD. New emerging analytical approaches that combine structural MRI data with clinical and other biomarker outcomes hold promise for detecting specific GM changes in the early stages of PD and preclinical AD that may predict mild cognitive impairment and dementia conversion
Utilidad de las secuencias potenciadas en susceptibilidad paramagnética (SWI) para diferenciar crisis somestésicas de accidentes isquémicos transitorios en un paciente con angiopatía amiloide cerebral
Background. Cerebral amyloid angiopathy (CAA) is
characterized by the deposit of β-amyloid on the walls
of small and medium-sized arteries of the cerebral cortex
and leptomeninges causing cerebral bleeding. Clinical
presentations may include transient neurological
events for which differential diagnosis can be difficult.
Case report. We report a subject with a medical history
of recent stroke who presented somesthetic seizures
mimicking transient ischemic attacks owing to CAA
microbleeding. Antiplatelet treatment was reduced and
after lamotrigine was commenced the episodes disappeared.
Susceptibility-weighted magnetic resonance
imaging was very helpful for diagnosis (SWI-MRI).
Conclusions. CAA microbleeding can be manifested in
the form of seizures mimicking focal transient sensitive
neurological deficits that can be erroneously attributed
to cerebral ischemia. The present case report suggests
that, despite the presence of a past medical history of
strokes, neurologists should consider CAA microbleeding
as a possible cause of pseudo-transient ischemic
attacks. High-resolution neuroimaging including SWIMRI
imaging can be helpful in identifying cortical microbleedings.
In this way, the start or increase of antiplatelet
treatment can be avoided, and the risk of potentially
fatal complications minimize
ACTUALIZACIÓN EN LA ENFERMEDAD DE PARKINSON
La enfermedad de Parkinson es un trastorno neurodegenerativo complejo y de presentación heterogénea. Aunque aún no se dispone de ningún fármaco que enlentezca la progresión de la enfermedad, existe un arsenal terapéutico extenso y eficaz para el control sintomático en cada una de sus fases, por lo que es importante realizar un diagnóstico preciso así como un correcto manejo de fármacos que garantice un estado óptimo en los paciente que la sufren, lo que resultará en una mejora en su calidad de vida. Además, dado que es el trastorno neurodegenerativo más frecuente tras la enfermedad de Alzheimer y que su factor de riesgo principal es la edad, la enfermedad de Parkinson supone, cada vez más, un reto de salud pública en nuestras sociedades occidentales progresivamente envejecidas. Esta revisión pretende actualizar los aspectos clínicos y diagnósticos fundamentales de la enfermedad de Parkinson así como las principales estrategias terapéuticas disponibles