A brainstem stroke syndrome falls under the broader category of
stroke syndromes, or specific symptoms caused by vascular injury to an area of brain (for example, the
lacunar syndromes). As the
brainstem
The brainstem (or brain stem) is the posterior stalk-like part of the brain that connects the cerebrum with the spinal cord. In the human brain the brainstem is composed of the midbrain, the pons, and the medulla oblongata. The midbrain is conti ...
contains numerous
cranial nuclei and
white matter
White matter refers to areas of the central nervous system that are mainly made up of myelinated axons, also called Nerve tract, tracts. Long thought to be passive tissue, white matter affects learning and brain functions, modulating the distr ...
tracts, a
stroke
Stroke is a medical condition in which poor cerebral circulation, blood flow to a part of the brain causes cell death. There are two main types of stroke: brain ischemia, ischemic, due to lack of blood flow, and intracranial hemorrhage, hemor ...
in this area can have a number of unique symptoms depending on the particular blood vessel that was injured and the group of cranial nerves and tracts that are no longer perfused. Symptoms of a brainstem stroke frequently include sudden
vertigo
Vertigo is a condition in which a person has the sensation that they are moving, or that objects around them are moving, when they are not. Often it feels like a spinning or swaying movement. It may be associated with nausea, vomiting, perspira ...
and
ataxia
Ataxia (from Greek α- negative prefix+ -τάξις rder= "lack of order") is a neurological sign consisting of lack of voluntary coordination of muscle movements that can include gait abnormality, speech changes, and abnormalities in e ...
, with or without weakness. Brainstem stroke can also cause
diplopia
Diplopia is the simultaneous perception of two images of a single object that may be displaced in relation to each other. Also called double vision, it is a loss of visual focus under regular conditions, and is often voluntary. However, when occ ...
, slurred speech and decreased level of consciousness. A more serious outcome is
locked-in syndrome
Locked-in syndrome (LIS), also known as pseudocoma, is a condition in which a patient is aware but cannot move or communicate verbally due to complete paralysis of nearly all voluntary muscles in their body except for vertical eye movements and ...
.
Syndromes
* The midbrain syndromes (Significant overlap between these three syndromes)
**
Superior alternating hemiplegia or
Weber's syndrome
**
Paramedian midbrain syndrome or
Benedikt's syndrome
**
Claude's syndrome
*
Medial pontine syndrome or
Middle alternating hemiplegia or
Foville's syndrome
*
Lateral pontine syndrome or
Marie-Foix syndrome
*
Medial medullary syndrome or
Inferior alternating hemiplegia
*
Lateral medullary syndrome or
Wallenberg syndrome
History
A history of locked in syndromes.
Jean-Dominique Bauby
Parisian journalist
Jean-Dominique Bauby had a
stroke
Stroke is a medical condition in which poor cerebral circulation, blood flow to a part of the brain causes cell death. There are two main types of stroke: brain ischemia, ischemic, due to lack of blood flow, and intracranial hemorrhage, hemor ...
in December 1995, and, when he awoke 20 days later, he found his body was almost completely paralyzed; he could control only his left eyelid. By blinking this eye, he slowly dictated one alphabetic character at a time and, in so doing, was able over a great deal of time to write his memoir, ''
The Diving Bell and the Butterfly''. Three days after it was published in March 1997, Bauby died of
pneumonia
Pneumonia is an Inflammation, inflammatory condition of the lung primarily affecting the small air sacs known as Pulmonary alveolus, alveoli. Symptoms typically include some combination of Cough#Classification, productive or dry cough, ches ...
.
The 2007 film ''
The Diving Bell and the Butterfly'' is a screen adaptation of Bauby's memoir. Jean-Dominique was instrumental in forming the ''Association du Locked-In Syndrome'' (ALIS) in
France
France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
.
See also
*
Alternating hemiplegia
*
Posterior cerebral artery syndrome
Posterior cerebral artery syndrome is a condition whereby the blood supply from the posterior cerebral artery (PCA) is restricted, leading to a reduction of the function of the portions of the brain supplied by that vessel: the occipital lobe, th ...
*
Middle cerebral artery syndrome
*
Anterior cerebral artery syndrome
References
External links
{{Lesions of spinal cord, brainstem, and cortex
Types of stroke
Syndromes affecting the nervous system