RUDN Journal of MedicineRUDN Journal of Medicine2313-02452313-0261Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)3425Research ArticleClinical features of early pregnancy and magnesium content of the blood serum and erythrocytes in women with undifferentiated connective tissue dysplasiaNikiphorovaN VState Budgetary Educational Institution of Higher Professional Education; the Ministry of Health and Social Development of the Russian Federationnikiforova_doc@mail.ruKerimkulovaN VState Budgetary Educational Institution of Higher Professional Education; the Ministry of Health and Social Development of the Russian Federationkernadezda@gmail.comIvanovo State Medical Academy15052013S5343807092016Copyright © 2013,2013A prospective study found that early pregnancy in women with undifferentiated connective tissue dysplasia is characterized by a higher frequency of complications. А significantly lower magnesium content in erythrocytes of pregnant women with dysplasia was determined. The decrease of magnesium in red blood cells in women with dysplasia less than 1.65 mmol/L can be used as a predictor of the risk of retrohorial hematoma.early pregnancycomplicationsmagnesiumundifferentiated connective tissue dysplasiaранние сроки беременностимагнийнедифференцированная дисплазия соединительной ткани