Factors affecting the accuracy of ultrasonographical fetal weight estimation in twin pregnancies

Objective. To determine the factors affecting the accuracy of ultrasonographic weight estimation in twins

Perinatal mortality and morbidity in twin pregnancies: the relation between chorionicity and gestational age at birth

To investigate perinatal mortality and morbidity rates of twin pregnancies and to determine the underlying factors responsible for the increase in these rates

Hereditary Thrombophilia, Anti-Beta2 Glycoprotein 1 IgM, and Anti-Annexin V Antibodies in Recurrent Pregnancy Loss

PROBLEM: We investigated the beta2-glycoprotein I and anti-annexin V antibodies as anti-phospholipid-cofactor antibodies; and factor V G1691A Leiden, prothrombin G20210A, and methylenetetrahydrofolate reductase (MTHFR) C677T mutations as hereditary thrombophilia in recurrent pregnancy losses (RPL). METHOD OF STUDY: Study group consisted of 84 women with recurrent pregnancy loss and control group consisted of 84 women having at least one live birth. RESULTS: Methylenetetrahydrofolate reductase C677T homozygous mutation was detected in 28.5% of the study group and in 14.2% of the controls, and the difference was highly significant (P < 0.001). Heterozygous mutation of this gene was found in 64.3% of the study population and in 38.1% of the controls, and difference in heterozygous mutation frequency was also significant (P < 0.001). Both homozygous and heterozygous mutations of PT G20210A and factor V G1691A were not different between the groups. There was no significant difference in anti-annexin V levels and anti-beta2-gp 1 levels of the groups. CONCLUSION: We concluded that both homozygous and heterozygous mutations of MTHFR C677T were related with RPL in Caucasian women