The effect of a major earthquake experienced during the first trimester of pregnancy on the risk of preterm birth

2018 ◽  
Vol 59 (1) ◽  
pp. 82-88 ◽  
Author(s):  
Georgina Hawkins ◽  
Joanna Gullam ◽  
Laura Belluscio
2012 ◽  
Vol 56 (9) ◽  
pp. 4800-4805 ◽  
Author(s):  
Catherine A. Koss ◽  
Dana C. Baras ◽  
Sandra D. Lane ◽  
Richard Aubry ◽  
Michele Marcus ◽  
...  

ABSTRACTTo assess whether treatment with metronidazole during pregnancy is associated with preterm birth, low birth weight, or major congenital anomalies, we conducted chart reviews and an analysis of electronic data from a cohort of women delivering at an urban New York State hospital. Of 2,829 singleton/mother pairs, 922 (32.6%) mothers were treated with metronidazole for clinical indications, 348 (12.3%) during the first trimester of pregnancy and 553 (19.5%) in the second or third trimester. There were 333 (11.8%) preterm births, 262 (9.3%) infants of low birth weight, and 52 infants (1.8%) with congenital anomalies. In multivariable analysis, no association was found between metronidazole treatment and preterm birth (odds ratio [OR], 1.02 [95% confidence interval [CI], 0.80 to 1.32]), low birth weight (OR, 1.05 [95% CI, 0.77 to 1.43]), or treatment in the first trimester and congenital anomalies (OR, 0.86 [0.30 to 2.45]). We found no association between metronidazole treatment during the first or later trimesters of pregnancy and preterm birth, low birth weight, or congenital anomalies.


Nutrients ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 3042 ◽  
Author(s):  
Isabelle Monier ◽  
Amandine Baptiste ◽  
Vassilis Tsatsaris ◽  
Marie-Victoire Senat ◽  
Jacques Jani ◽  
...  

Maternal 25-hydroxyvitamin D (25-OHD) deficiency during pregnancy may increase the risk of preterm and small-for-gestational age (SGA) birth, but studies report conflicting results. We used a multicenter prospective cohort of 2813 pregnant women assessed for 25-OHD levels in the first trimester of pregnancy to investigate the association between maternal 25-OHD concentrations and risks of preterm birth (<37 weeks) and SGA (birthweight <10th percentile). Odds ratios were adjusted (aOR) for potential cofounders overall and among women with light and dark skin separately, based on the Fitzpatrick scale. 25-OHD concentrations were <20 ng/mL for 45.1% of the cohort. A total of 6.7% of women had a preterm birth. The aOR for preterm birth associated with the 1st quartile of 25-OHD concentrations compared to the 4th quartile was 1.53 (95% confidence interval (CI): 0.97–2.43). In stratified analyses, an association was observed for women with darker skin (aOR = 2.89 (95% CI: 1.02–8.18)), and no association with lighter skin. A total of 11.9% of births were SGA and there was no association overall or by skin color. Our results do not provide support for an association between maternal first trimester 25-OHD deficiency and risk of preterm or SGA birth overall; the association with preterm birth risk among women with darker skin requires further investigation.


World Science ◽  
2019 ◽  
Vol 2 (9(49)) ◽  
pp. 4-8
Author(s):  
V. V. Lazurenko ◽  
I. B. Borzenko ◽  
D. Yu. Tertyshnik

The purpose of the study is to evaluate the effect of placental dysfunction caused by gestational endotheliopathy on the course of labor and the condition of the newborn. The first group consisted of 70 patients with placental dysfunction with gestational endotheliopathy confirmed by laboratory-instrumental findings in the first trimester of pregnancy. The control group included 30 pregnant women with physiological gestational course. PD secondary to GE leads to preterm birth, fetal distress, increases the percentage of caesarean section, contributes to the delay of fetal growth and birth weight, poor infant status and perinatal complications.


2017 ◽  
Vol 56 (1) ◽  
pp. 23-26 ◽  
Author(s):  
Masako Matsui ◽  
Yuichiro Takahashi ◽  
Shigenori Iwagaki ◽  
Rika Chiaki ◽  
Kazuhiko Asai ◽  
...  

2013 ◽  
Vol 12 (2) ◽  
pp. 164-171
Author(s):  
Nishat Un Nahar ◽  
Zeba Un Naher ◽  
Md. Ashanul Habib ◽  
Forhadul Hoque Mollah

Introduction: Maternal thyroid dysfunction during pregnancy has been associated with a number of adverse outcomes, like preterm birth, placental abruption, foetal death and impaired neurological development in the child. Simultaneously the presence of antibody to thyroid peroxidase results miscarriage, preterm birth and maternal post partum thyroid disease. Post partum thyroiditis is closely associated with the presence of antibodies to thyroid peroxidase (TPO). Indeed if a pregnant woman is positive for TPO antibodies early in pregnancy, her chances of developing post partum thyroiditis is 30-52%. Objective: To find out the level of TPO-Ab and thyroid status in first trimester of pregnancy. Method: The cross sectional study was designed in Department of Biochemistry, BSMMU, Dhaka. Following inclusion and exclusion criteria 200 sample was selected by purposive and convenient sampling. The study parameters were- thyroid peroxidase antibody (TPO-Ab); serum thyroid stimulating hormone (TSH); serum free thyroxin (FT4). Results: 43 (21.5%) pregnant women of first trimester was found to be TPO-Ab positive, among these 43 subjects 16 (8.0%) had raised TSH i.e. >2.5 mIU/L and 27 had TSH level <2.5 mIU/L. Low serum FT4 was in 9 (4.5%) subjects. The study revealed that, there was a significant positive correlation between positive TPO-Ab (>12 IU/mL) and serum TSH level of study subjects and there was negative correlation between serum TSH (>2.5 mIU/L) and serum FT4 in study subjects. Conclusion: TPO-Ab positivity in first trimester of pregnancy and TPOAb positivity was associated with higher TSH and low FT4 level. Bangladesh Journal of Medical Science Vol. 12 No. 02 April’13 Page 164-170 DOI: http://dx.doi.org/10.3329/bjms.v12i2.14945


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