Platelet satellitism in infectious disease?

Vidranski, Valentina and Laškaj, Renata and Sikirić, Dubravka and Škerk, Višnja (2015) Platelet satellitism in infectious disease? Biochemia Medica, 25 (2). pp. 285-294. ISSN 1330-0962

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BACKGROUND: Platelet satellitism is a phenomenon of unknown etiology of aggregating platelets around polymorphonuclear neutrophils and other blood cells which causes pseudothrombocytopenia, visible by microscopic examination of blood smears. It has been observed so far in about a hundred cases in the world. ----- CASE SUBJECT AND METHODS: Our case involves a 73-year-old female patient with a urinary infection. Biochemical serum analysis (CRP, glucose, AST, ALT, ALP, GGT, bilirubin, sodium, potassium, chloride, urea, creatinine) and blood cell count were performed with standard methods on autoanalyzers. Serum protein fractions were examined by electrophoresis and urinalysis with standard methods on autoanalyzer together with microscopic examination of urine sediment. Erythrocyte sedimentation rate, blood culture and urine culture tests were performed with standard methods. ----- RESULTS: Due to typical pathological values for bacterial urinary infection, the patient was admitted to the hospital. Blood smear examination revealed phenomenon, which has persisted for three weeks after the disease has been cured. Blood smears with EDTA as an anticoagulant had platelet satellitism whereas the phenomenon was not observed in tubes with different anticoagulants (Na, Li-heparin) and capillary blood. ----- DISCUSSION: We hypothesize that satellitism was induced by some immunological mechanism through formation of antibodies which have mediated platelets binding to neutrophil membranes and vice versa. Unfortunately we were unable to determine the putative trigger for this phenomenon. To our knowledge this is the second case of platelet satellitism ever described in Croatia.

Item Type: Article
MeSH: Aged ; Blood Platelets/metabolism ; Blood Platelets/pathology ; Croatia ; Female ; Humans ; Neutrophils/metabolism ; Neutrophils/pathology ; Platelet Aggregation ; Urinary Tract Infections/blood ; Urinary Tract Infections/drug therapy ; Urinary Tract Infections/pathology
Departments: Katedra za farmakologiju
Depositing User: Marijan Šember
Status: Published
Vidranski, ValentinaUNSPECIFIED
Sikirić, DubravkaUNSPECIFIED
Date: 5 June 2015
Date Deposited: 08 Dec 2015 14:03
Last Modified: 24 Jul 2020 07:08
Subjects: /
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