Syndromes Of Vertebrobasilar System Flashcards
What arteries are occluded in Wallenberg syndrome
Vertebral arteries, PICA, superior lateral medullary artery, middle lateral medullary artery,inferior lateral medullary artery
What part of brain stem is supplied by basilar artery vs vertebral artery?
Basilar artery = midbrain and pons
Vertebral artery = medulla
What nerve is affected in weber syndrome
Ipsilateral CN 3
What is affected in benedikt syndrome
Red nucleus/tegmentum of midbrain
Muscle changes in wallenberg syndrome
No weakness
Symptoms of benedikt syndrome
Ipsilateral CN 3 palsy with mydriasis, contralateral hypesthesia due to damage of medial lemniscus, contralateral hyperkinesis due to damage of red nucleus.
What part of the brain is spared in locked in syndrome
Reticular activating system
What part of the brain is affected in locked in syndrome
Ventral pons
Symptoms of basilar artery occlusion
Internuclear ophthalmoplegia, conjugate horizontal gaze palsy, ocular bobbing
What artery is involved in medial medullary syndrome
Vertebral artery or anterior spinal artery
What CN is affected in millard gubler syndrome
Ipsilateral CN6 and CN7
What artery is affected in benedikt syndrome
Basilar or posterior cerebral artery
Symptoms of millard-gubler syndrome
Contralateral hemiplegia, analgesia, contralateral hypoesthesia, ipsilateral CN 6 and 7 palsy
What artery is involved in locked in syndrome
Basilar artery
Signs and symptoms of wallenberg
Ipsilateral horners, decrease in pain and temperature of face, ataxia.
Contralateral decrease in pain and temperature of body.
Dysphasia, dysarthria, vertigo, hiccups, nystagmus.
Raymond-foville syndrome
Millard-gubler syndrome with extension to medial lemniscus with gaze palsy to side of lesion
What artery is affected in weber syndrome
PCA or posterior choroidal artery
Symptoms of medial medullary syndrome
Ipsilateral hypoglossal palsy, contralateral hemiplegia, contralateral sensory loss and loss of proprioception and position
Symptoms of weber syndrome
Ipsilateral CN 3 palsy, Contralateral hemiplegia, contralateral Parkinson’s, contralateral dystaxia
What parts of the brain stem are affected in each brainstem syndrome
- Weber syndrome - midbrain
- Millard-gubler syndrome - pons
- Middle medullary syndrome - medulla
CN of midbrain, pons, medulla
Midbrain = 1,2,3,4 Pons = 5,6,7,8 Medulla = 9,10,11,12
Syndromes of paramedian brain stem
- Weber syndrome
- Millard gubler syndrome
- Medial medullary syndrome
What artery is affected in millard gubler syndrome
Basilar artery
What CN is affected in Medial medullary syndrome
CN 12
Which CN is affected in Benedikt syndrome
CN 3
