Helpful, trusted answers from doctors: Dr. Miller on right thalamic lacunar infarct: A lacunar infarct is a small area of brain cells that have died. This may be asymptomatic or not depending on where it is and the size of it.
Lacunar stroke happens when blood flow to one of the small arterial vessels deep within the brain becomes blocked. It’s a type of ischemic stroke and accounts for about one-fifth of all strokes.
Lacunar stroke or lacunar infarct (LACI) is the most common type of ischaemic stroke, and results from the occlusion of small penetrating arteries that provide blood to the brain's deep structures. Patients who present with symptoms of a lacunar stroke, but who have not yet had diagnostic imaging performed, may be described as suffering from lacunar stroke syndrome (LACS).
A lacunar stroke involves only a small area of the brain, but it can cause significant disability. Lacunar strokes account for about 20 percent of all strokes in the United States. Symptoms. The symptoms of lacunar stroke vary depending on the part of the brain that is deprived of its blood supply.
An individual is said to have Lacunar Stroke Syndrome or LACS if he or she is experiencing its symptoms but has not undergone the diagnostic imaging procedures. Lacunar Infarcts involving the thalamus are known as Thalamic Lacunar Infarcts while those affecting the pons are called Pontine Lacunar Infarcts.
casemed.case.edu/clerkships/neurology/Web Neurorad/LacunarInfarction Thalamus.htm
Note the acute ischemic stroke seen in the diffusion-weighted image in the region of the right thalamus, which accounts for the patient's current symptoms. GP = Globus Pallidus. Lacunar strokes (also known as small vessel disease) are caused by occlusion of the deep perforating blood vessels.
Lacunar strokes are a common occurrence in patients with vascular risk factors and can lead to a wide range of cognitive and sensorimotor sequelae. Cognitive deficits following lacunar strokes may be more prevalent than sensorimotor symptoms, and are characterized by impaired verbal fluency ...
The overwhelming majority of pure sensory lacunar strokes affects a brain area called the thalamus, an area that is heavily involved in processing the senses from all over the body. Sensations affected by a pure sensory stroke include touch, pain, temperature, pressure, vision, hearing, and taste.
The thalamus is a busy place in the human brain, and a stroke there can have a wide range of effects. Jeremy Schmahmann, professor of neurology at Harvard Medical School, director of the ataxia unit and member of the cognitive behavioral neurology unit at Massachusetts General Hospital, shared more about this type of stroke.
Lacunar stroke syndrome (LACS) is a description of the clinical syndrome that results from a lacunar infarct. Each of the five classical lacunar syndromes has a relatively distinct symptom complex. Symptoms may occur suddenly, progressively, or...