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Coagulation and vascular abnormalities in Crow-Fukase syndrome
1Department of Neurology, Utano National Hospital, Kyoto, Japan.
Muscle & Nerve
|April 1, 1997
Summary
Crow-Fukase syndrome (CFS) involves vascular and coagulation issues, with increased thrombin-antithrombin complexes (TAT) and narrowed blood vessels in nerves. Treatment with prednisolone, interferon, and antithrombin drugs helped refractory cases.
Area of Science:
- Neurology
- Hematology
- Pathophysiology
Background:
- Crow-Fukase syndrome (CFS), also known as POEMS syndrome, is a rare multisystem disorder.
- The exact pathophysiology of CFS, particularly the role of vascular and coagulation abnormalities, remains incompletely understood.
Purpose of the Study:
- To investigate the coagulation and vascular abnormalities in patients with Crow-Fukase syndrome.
- To elucidate the underlying pathophysiology of CFS.
Main Methods:
- Studied 4 patients with CFS, analyzing serum markers and performing nerve immunohistochemistry.
- Measured fibrinogen, fibrinopeptide A, and thrombin-antithrombin complexes (TAT).
- Examined endoneurial blood vessels for endothelial abnormalities, TAT presence, inflammatory infiltrates, and blood-nerve barrier integrity.
Main Results:
- Elevated levels of fibrinogen, fibrinopeptide A, and TAT were observed during the active phase of CFS.
- Immunohistochemistry revealed TAT in the endothelium of small nerve vessels and surrounding inflammatory cell infiltrates.
- Evidence of blood-nerve barrier opening and significant narrowing or closure of endoneurial blood vessels with thickened basement membranes was found.
Conclusions:
- Endothelial cell abnormalities and chronic intravascular coagulation are likely key contributors to CFS pathogenesis.
- These vascular changes may occur alongside an unidentified demyelinating factor.
- Combined treatment with prednisolone, human leukocyte interferon, and an antithrombin drug showed efficacy in refractory CFS cases.