Maternal Fetal Medicine
Mahboobeh Shirazi; Fatemeh Rahimi Sharbaf; Fatemeh Golshahi; Behrokh Sahebdel; Elham Feizabad; Leila Asadi; Afsaneh Alimadad-Tafreshi; Arash Jafariyeh; Akram Valizadeh; tayebeh sedighi; Fatemeh Takaloo; Aazam Taghavi-Zahedkalaei
Articles in Press, Accepted Manuscript, Available Online from 09 December 2023
Abstract
Background & Objective: Clinical use of uterine artery (UtA) Doppler ultrasound imaging requires reference values but despite the common use of UtA Doppler examination during pregnancy, to the best of our knowledge, there is no such range for Iranian pregnant women. Hence, this study aimed to investigate ...
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Background & Objective: Clinical use of uterine artery (UtA) Doppler ultrasound imaging requires reference values but despite the common use of UtA Doppler examination during pregnancy, to the best of our knowledge, there is no such range for Iranian pregnant women. Hence, this study aimed to investigate uterine artery Doppler indices in Iranian normal pregnancies and compare these with the other country values.Materials & Methods: This observational longitudinal study was conducted on 486 low-risk pregnant women. The amount of plausibility index (PI) and resistance index (RI) as well as the presence of diastolic notch were assessed in weeks 11 to 14, 17 to 24, and 27 to 32 through Doppler ultrasound. Results: The bilateral notch for the gestational age of 11 to 14 weeks was detected at about 6%, for the gestational age of 17 to 24 weeks it was about 4.2% and for the gestational age of 27 to 32 weeks it was about 3.6%. Reference intervals for mean uterine artery PI according to gestational ages, show a significant (p<0.001) difference between different percentages. Also, there is a significant relation between the mean uterine arteries PI/RI and the presence or absence of pregnancy complications (IUGR, premature birth, IUFD) among the participants. Conclusion: The results of this research showed that there is a significant relation between PI and pregnancy complications, while this was not detected in RI and diastolic notch. These results are relatively consistent with the findings of researchers in other countries.
Maternal Fetal Medicine
Seddighe Borna; Marjan Ghaemi; Fatemeh Golshahi; Mamak Shariat; Mahboobeh Shirazi; Behrokh Sahebdel
Volume 5, Issue 4 , December 2020, , Pages 159-166
Abstract
Background & objective: Premature preterm rupture of membrane (PPROM) is a cause of preterm birth. This study investigated the effectiveness of Doppler ultrasound in predicting fetal complications and neonatal outcomes of pregnant women with PPROM.Materials & Methods: In this cross-sectional ...
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Background & objective: Premature preterm rupture of membrane (PPROM) is a cause of preterm birth. This study investigated the effectiveness of Doppler ultrasound in predicting fetal complications and neonatal outcomes of pregnant women with PPROM.Materials & Methods: In this cross-sectional study, a total of 23 pregnant women with PPROM were chosen in their 24 to 34 weeks of gestational age. The fetuses’ blood flow indices were evaluated by Doppler ultrasound pulsatility index (PI) in the middle cerebral, main pulmonary, right kidney, and fetal umbilical arteries and descending aorta at admission (because of PPROM) and 24 hours before delivery. Neonatal outcomes were assessed within the first week of birth.Results: The kidney artery PI increased (P < /em>=0.047) and pulmonary artery PI decreased (P < /em>=0.024) at pregnancy termination time. There was a negative correlation between the 5-minute Apgar score and fetal umbilical artery PI at admission (P < /em>=0.003) and pregnancy termination times (P < /em>=0.031). The fetal umbilical artery PI of neonates with abnormal brain ultrasound imaging results significantly decreased at admission (P < /em>=0.002) and pregnancy termination times (P < /em>=0.004).Conclusion: Fetal artery Doppler ultrasound PI may be a valid tool for predicting neonatal outcomes of women with PPROM.
Mahboobeh Shirazi; Soheila Sarmadi; Shirin Niromanesh; Fatemeh Rahimi Sharbaf; Behrokh Sahebdel; Fatemeh Golshahi; Leila Asadi; Maedeh Rahmanzadeh
Volume 4, Issue 1 , March and April 2019, , Pages 12-15
Abstract
Background & Objective: Diagnosing fetal disorders and abnormalities in the early stages of pregnancy can prevent future adverse conditions for the infant and his/her family. This study aimed to evaluate the sensitivity and specificity of the first- and second-trimester screening tests for identifying ...
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Background & Objective: Diagnosing fetal disorders and abnormalities in the early stages of pregnancy can prevent future adverse conditions for the infant and his/her family. This study aimed to evaluate the sensitivity and specificity of the first- and second-trimester screening tests for identifying fetal chromosomal disorders in pregnant women.
Materials & Methods: A total of 960 pregnant women participated in this retrospective cohort study that was performed at Yas Hospital. The participants’ mean age was 31.07±0.17 years. In the present study, all pregnant women, who referred to Yas Hospital for their first- and second-trimester screening tests, were studied from 2015 to 2017.
Results: Most of the participants (43.4%) were primigravida. The sensitivity of the first-trimester screening test was 70%, and its specificity was 80.3%. The sensitivity and specificity of the second-trimester screening test were 45% and 94.5%, respectively.
Conclusion: Despite recent advances in the prenatal field, the accuracy of screening tests may still vary depending on maternal age and other existing characteristics. Consequently, in parents consulting, the possibility of false positives and negatives should be considered in the tests.
