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Year :2016
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Month :
July-August
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Volume :
5
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Issue :
3
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Page :
-
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The Relationship Between Fetal Crown-Rump Length in the Early First Trimester and Growth Parameters at Birth
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Correspondence Address :
Sheida Shabanian, Mahsa Hajirahimi, Forouzan Ganji, Abolfazl Khoshdel, Mahdokht Hajirahimi, Morteza Sedehi,
Dr. Mahsa Hajirahimi,
Shahid Tabatabaei Hospital, Jundishapour University of
Medical Sciences, Baghmalek, Ahwaz, Iran.
E-mail: dr.hajirahimi@gmail.com
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Introduction: Introduction: Crown–rump length (CRL) has been demonstrated to be an accurate predictor of birth growth and can cause many complications.
Aim: This study was conducted to determine the association between CRL in the first trimester and weight, length and Head circumference (HC) at birth.
Materials and Methods: This was a prospective, cohort study in Hajar Hospital of Shahrekord, southwest Iran from March, 2013 to June, 2014 (within 15 months). Thirty women achieving pregnancy with intrauterine insemination and in vitro fertilization were compared with 60 women getting pregnant naturally. Between the days 59 and 83 after insemination, fetal CRL was examined by ultrasound. Then, the patients were followed up and weight, length and HC at birth were recorded. The data were analyzed by SPSS 22.
Results: There was a direct correlation between CRL and length in the studied infants (0.91, p<0.001). The correlation between CRL and length was derived significant in both the infants born after artificial insemination (AI) and born naturally (0.69 and 0.7 respectively, p<0.001). There was a direct correlation between CRL and HC (0.27, p=0.01) in AI and naturally born groups (0.47 and 0.26 respectively, p<0.05). There also was a significant, direct correlation between CRL and weight (0.69, p=0.001) in both AI and naturally born groups (0.53 and 0.78 respectively).
Conclusion: CRL in the first trimester is significantly correlated with weight, length and HC at birth and can be used in screening. However, this index, as a diagnostic test, cannot exactly predict real length, HC and weight at birth.
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