Document Detail


Evidence of cerebral hypoperfusion in scleroderma patients.
MedLine Citation:
PMID:  11136880     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: To investigate regional cerebral blood flow by (99m)Tc-hexamethylpropylenamineoxime (HMPAO) single photon emission computed tomography (SPECT) in a series of 40 patients (mean age 58.5+/-11.5 yr) affected by systemic sclerosis (SSc) in comparison with age-matched healthy controls. METHODS: Subjects affected by concomitant severe pathologies that might interfere with the interpretation of the SPECT results were excluded. SPECT findings were correlated with the severity of peripheral microvascular involvement, as assessed by nailfold videocapillaroscopy (NVC). Whenever possible, patients underwent magnetic resonance imaging (MRI) of the brain. RESULTS: Twenty-one SSc patients (52%) showed hypoperfusion in two or more regions of interest (ROIs) at the SPECT analysis. MRI was available in 14 of these patients, and was shown to be altered in eight of them (57%). One patient with both abnormal SPECT and abnormal MRI was affected by mild cognitive impairment. Transcranial Doppler sonography was normal in all but one of these patients with hypoperfusion. Nineteen patients exhibited a normal brain SPECT scan, but the MRI was shown to be altered in 3/12 of them (25%). No significant differences were found between the group of SSc patients showing hypoperfusion and those showing a normal SPECT scan regarding age, the duration of disease, the presence of vascular risk factors or damage of other organs typically involved in the disease, and the severity of peripheral microvascular involvement (NVC). CONCLUSIONS: Focal or diffuse cerebral hypoperfusion was found in more than half of the neurologically asymptomatic SSc patients studied, paralleling the incidence of altered brain MRI. The hypoperfusion was not linked to ageing and possibly reflects the cerebral location of the microangiopathic process characterizing the disease.
Authors:
M Cutolo; F Nobili; A Sulli; C Pizzorni; M Briata; F Faelli; P Vitali; G Mariani; F Copello; B Seriolo; C Barone; G Rodriguez
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Rheumatology (Oxford, England)     Volume:  39     ISSN:  1462-0324     ISO Abbreviation:  Rheumatology (Oxford)     Publication Date:  2000 Dec 
Date Detail:
Created Date:  2001-01-22     Completed Date:  2001-02-01     Revised Date:  2007-09-06    
Medline Journal Info:
Nlm Unique ID:  100883501     Medline TA:  Rheumatology (Oxford)     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  1366-73     Citation Subset:  AIM; IM    
Affiliation:
Division of Rheumatology, Department of Internal Medicine, University of Genova, Genova, Italy.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Brain / pathology,  radionuclide imaging
Case-Control Studies
Cerebrovascular Circulation*
Cognition Disorders / etiology
Female
Humans
Magnetic Resonance Imaging
Male
Middle Aged
Radiopharmaceuticals / diagnostic use
Risk Factors
Scleroderma, Systemic / physiopathology*,  radionuclide imaging
Technetium Tc 99m Exametazime / diagnostic use
Tomography, Emission-Computed, Single-Photon
Chemical
Reg. No./Substance:
0/Radiopharmaceuticals; 100504-35-6/Technetium Tc 99m Exametazime

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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