Objective of the study. To identify and analyse clinical and laboratory featuresin immunocompetent patients with thrombotic complications in acute cytomegalovirusinfection. Development of the algorithm of prognosis and early diagnosis of thromboticcomplications in order to reduce the risk of severe course of the disease and lethal outcome.Materials and Methods. The study included 100 immunocompetent adult patientsundergoing inpatient observation and treatment with laboratory-proven acute cytomegalovirus infection. All patients had a detailed clinical and epidemiological history for thepossible presence of modifiable and/or non-modifiable prothrombotic risk factors; a multifaceted laboratory and instrumental examination was performed.Results. Out of one hundred patients with acute cytomegalovirus infection selectedin the study, thrombotic diseases were observed in 7 % of cases (in 7 patients). The mean ageof the patients was 41 (38; 42) years. Patients were hospitalised on average on 12 (10; 14) daysfrom the onset of the disease. The main complaints on admission were: prolonged feverup to 38 °С and marked general weakness. The patients had elevated ALT and ASTin 88 % and 80 % of cases, respectively. The presence of reactive lymphocytes was registeredin 57 % of cases. Enlargement of liver and spleen was observed in 67 % and 70 % of cases,respectively. Compared to patients with uncomplicated course of acute cytomegalovirusinfection, statistically significant laboratory differences were observed in SRB (p < 0.001)and D-dimers (p < 0.05) in patients who had thrombotic complications. All patients whohad genetic material (DNA) to CMV in the blood had positive tests for rr65 antigenemia.The polymorphism of factor V gene G1691A (FVLeiden) was detected in only one patient,who was a carrier of heterozygous GA allele.Conclusion. Acute cytomegalovirus infection in immunocompetent patients includesa symptom complex consisting of a typical clinical picture (prolonged febrile intoxication,hepatosplenomegaly, elevated hepatic transaminases, CRP and D-dimer levels) and obligatorylaboratory detection of the virus (positive PCR and/or Ag pp65 tests for CMV). Cytomegalovirus is an independent and reliable prothrombotic risk factor, with thromboticcomplications occurring in 7 % of cases. Patients with risk factors for thrombotic complications with verified acute cytomegalovirus infection are recommended to be prescribedanticoagulant therapy at prophylactic doses. Also, patients with a proven case of thromboticprocess on the background of acute cytomegalovirus infection are recommended a courseof etiotropic antiviral therapy.Key words: Cytomegalovirus (CMV). Acute cytomegalovirus infection (ACMV).Immunocompetent patient. Thrombotic complications (ТС). Clinical features.
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