Resumo

ZAMORA GONZALEZ, Yaneth; URRUTIA FEBLES, Yaima  e  FORRELLAT BARRIOS, Mariela. Thrombosis and its relationship to protein C and S deficiency. Rev Cubana Hematol Inmunol Hemoter [online]. 2020, vol.36, n.4  Epub 01-Dez-2020. ISSN 1561-2996.

Thrombosis is a vascular disorder appearing when a thrombus totally or partially blocks the inside of a blood vessel, be it a vein or an artery. Thrombophilia is a hemostatic alteration leading to thrombosis. However, the presence of thrombophilia does not necessarily imply the appearance of a thrombotic event.

Deficiency in physiological inhibitors such as proteins C and S is a hereditary or acquired risk factor fostering thrombosis. Determination was made of the incidence of deficiency in these coagulation proteins in patients with an adverse obstetric history, thrombotic events and other associated disorders.

A prospective longitudinal study was conducted in the period 2011-2018 of a group of patients referred to the Institute of Hematology and Immunology, who underwent measurement of their plasma levels of proteins C and S. A total 133 patients (52.17%) were found to be deficient in protein C (n=50), protein S (n=66) or both (n=17). The main reasons for the conduct of these studies were an adverse obstetric history and thrombotic events, which coincided with clinical disorders in which some sort of deficiency prevailed. Protein S deficiency was the most common.

Palavras-chave : thrombosis; protein C; protein S; thrombophilia; adverse obstetric history.

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