Neuroclínica Huehuetenango

29/09/2025

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21/08/2025

Ejercicio, memoria, depresión, neuroplasticidad.

Accumulating evidence supports that physical exercise (EX) is the most effective nonpharmacological strategy to improve brain health. EX prevents cognitive d...

11/08/2025

Trombolisis en Infarto Cerebral.

30/07/2025

Temblor Esencial.

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What is the mechanism of essential tremor. Well, of course it is cerebello-thalamo-cortical dysfunction.

17/06/2025

Efecto Placebo. Somatización.

03/06/2025

Crisis Epilépticas.

16/05/2025

Vértigo Central por Insuficiencia VertebroBasilar.

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Vertebrobasilar Insufficiency

Drop attacks caused by posterior circulation insufficiency result from transient ischemia to the corticospinal tracts or the paramedian reticular formation. They are rarely an isolated manifestation of vertebrobasilar insufficiency, because most patients have a history of TIAs that include the more common signs and symptoms of
1. vertigo,
2. ,
3. ,
4. ,
5. hemisensory loss.
A drop attack is the ominous precursor of severe neurological deficits due to progressive thrombosis of the basilar artery and may precede permanent ischemic damage only by hours. Aside from and focal stenosis in the posterior circulation, vertebrobasilar insufficiency can also be caused by the subclavian steal syndrome

This cerebral angiogram showed marked stenosis of the basilar artery (arrow).