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[Blood coagulation and fibrinolytic studies in patients with toxemia of pregnancy].

Abstract
In this study, blood coagulation and fibrinolytic parameters were measured in maternal blood and fetal umbilical cord blood in 200 normal pregnant women and in 46 with severe toxemia of pregnancy (Toxemia), and the relationships between fetal growth and concentrations protein C (PC), antithrombin-III (AT-III) and alpha 2-plasmin inhibitor (alpha 2-PI) were studied. 1. Significant increases in fibrin degradation products (FDP) and in plasminogen (Plg), AT-III and PC were found in maternal blood of Toxemia. A significant increase in AT-III and a decrease in alpha 2-PI and PC were observed in cord blood from these patients. 2. The platelet count (Pl) tended to be low in patients with Toxemia complicated by fetal growth retardation (IUGR). 3. Pl and fibrinogen (Fib) tended to be high in Toxemia complicated by normal fetal growth. 4. PC increased from early pregnancy, and a further increase was observed in the puerperium. 5. The PC concentration correlated with the AT-III but not with the alpha 2-PI concentration in maternal blood. 6. PC in cord blood was lower than that in maternal blood, and was correlated with AT-III and alpha 2-PI. 7. In patients with Toxemia, PC was reduced in both maternal and cord blood, and this correlated with AT-III as well as alpha 2-PI in maternal blood. 8. PC was low in Toxemia complicated by hypertension and proteinuria. These results suggest the involvement of FDP, AT-III, PC and Plg in the pathogenesis of Toxemia, and that the Pl, Fib, FDP and alpha 2-PI concentrations are related to fetal growth. Therefore, the PC and AT-III concentrations appeared to be a useful index for the blood coagulation and fibrinolysis in pregnant women and appeared to be important factors in the degree of Toxemia and IUGR.
AuthorsH Okamiya
JournalNihon Sanka Fujinka Gakkai zasshi (Nihon Sanka Fujinka Gakkai Zasshi) Vol. 42 Issue 11 Pg. 1557-64 (Nov 1990) ISSN: 0300-9165 [Print] Japan
PMID2273312 (Publication Type: English Abstract, Journal Article)
Chemical References
  • Protein C
  • alpha-2-Antiplasmin
  • Antithrombin III
Topics
  • Adult
  • Antithrombin III (analysis)
  • Blood Coagulation
  • Female
  • Fetal Growth Retardation (diagnosis)
  • Fibrinolysis
  • Humans
  • Pre-Eclampsia (blood, diagnosis)
  • Pregnancy
  • Pregnancy Complications, Hematologic (blood, diagnosis)
  • Protein C (analysis)
  • alpha-2-Antiplasmin (analysis)

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