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Published on: April 23, 2021
Microembolic signals in systemic lupus erythematosus and other cerebral small vessel diseases
José Fidel Baizabal-Carvallo1, Yves Samson
1Urgences Cerebrovasculaires, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique des Hôpitaux de Paris et Université Pierre et Marie Curie Paris Universitas, 47-83, Boulevard de l'Hôpital, 75651, Paris Cedex, France. baizabaljf@hotmail.com
Abstract:
Microembolic signals (MES) are detected by transcranial Doppler (TCD), and are mainly observed in cardiac and large-artery diseases; however they might also be observed in conditions affecting small vessels of the brain. We aimed to review the current medical literature related to MES assessed by TCD in patients with cerebral small vessel disease. We conducted a systematic review in PubMed and selected the articles with information on this topic. Systemic lupus erythematosus (SLE) is the disease with more articles; pooled data showed a frequency of MES of 14.9%. MES were more frequent in SLE patients with antiphospholipid antibodies and ischemic stroke. MES have also been described in other diseases such as primary antiphospholipid syndrome, Sneddon's syndrome, and Behçet's disease. Further studies assessing the significance of MES in the pathogenesis of neurological manifestations of these disorders is warranted.
Insights
Microembolic signals (MES), detected by transcranial Doppler (TCD), are linked to small vessel brain diseases. Systemic lupus erythematosus (SLE) showed a 14.9% MES frequency, particularly with antiphospholipid antibodies and stroke.
Area of Science:
- Neurology
- Vascular Medicine
- Rheumatology
Background:
- Microembolic signals (MES) are typically associated with cardiac and large artery diseases.
- However, MES can also indicate conditions affecting the brain's small vessels.
Purpose of the Study:
- To systematically review the medical literature on MES detected by transcranial Doppler (TCD) in patients with cerebral small vessel disease.
- To explore the prevalence and associations of MES in specific small vessel diseases.
Main Methods:
- Systematic literature review using PubMed.
- Selection of articles focusing on MES assessment by TCD in cerebral small vessel disease.
Main Results:
- Systemic lupus erythematosus (SLE) had the most reported articles, with a pooled MES frequency of 14.9%.
- MES were more prevalent in SLE patients with antiphospholipid antibodies and those who experienced ischemic stroke.
- MES have also been observed in primary antiphospholipid syndrome, Sneddon's syndrome, and Behçet's disease.
Conclusions:
- MES detected by TCD are relevant in cerebral small vessel diseases, notably SLE.
- Further research is needed to understand the role of MES in the neurological manifestations of these disorders.
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