Prevalence and risk factors of preterm birth in Pakistan

Hanif, Asif; Ashraf, Tahira; Pervaiz, Muhammad Khalid; Güler, Nesrin

doi:10.5455/jpma.295022

Cited by 13 publications

(22 citation statements)

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“…Royal college of obstetricians and gynecologists guidelines on placenta previa has also highlighted the fact that a standardized definition of placental edge thickness should be used before this sign can be used in clinical practice. 5 Multiparity is a recognized risk factor for placenta previa and our results match with findings of previous studies done to evaluate risk factors for improper placental localization. 15 , 16 …”

Section: Discussionsupporting

confidence: 91%

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Relationship of placental edge thickness and cervical length to gestational age at delivery in patients with placenta previa

Syed

Liaqat²,

Naseeb³

et al. 2022

Pak J Med Sci

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Background & Objective: Placenta previa and its accompanying fetomaternal complications are increasing day by day because of globally increasing rates of cesarean deliveries, trends of assisted reproductive techniques, and delaying pregnancies to later ages. Placenta previa is an important contributor to iatrogenic and mostly emergent preterm deliveries, which add to increased neonatal morbidity and mortality. The predictors of preterm deliveries can help clinician make necessary preparations for optimal fetomaternal outcome. The aim of the current study was to determine relationship of placental edge thickness and cervical length with gestation at delivery in patients having placenta previa. Methods: It was a descriptive case series study conducted in the department of obstetrics and gynecology, Medical Teaching Institute Lady Reading Hospital Peshawar from January 2020 till January 2021. Seventy five patients fulfilled the inclusion criteria and were included in the study. Already diagnosed cases of placenta previa, with singleton alive pregnancies and gestation of 28 weeks or more were enrolled. Trans vaginal ultrasound was done to determine placental edge thickness and cervical length. Patients data on gestation at delivery were collected from hospital records. Results: A significant negative correlation between the placental edge thickness and gestational age at delivery was seen (r= -0.566, P= 0.001). The correlation between length of cervical canal and gestation at delivery was positive (r= 0.362, P=0.001). Also thick placental edge of > 2cm had significant association with birth before 37 weeks (P=0.023). A short cervix of less than 2.5 cm had also statistically significant association with birth before 37 weeks (P=0.022). Conclusion: There is linear inverse relationship of placental edge thickness with gestation at delivery. The relationship of cervical length with gestation is positive linear. Patients with thick placental edge are more likely to deliver preterm than those having thin placental edge. doi: https://doi.org/10.12669/pjms.38.5.5097 How to cite this:Syed W, Liaqat N, Naseeb G, Khattak SM. Relationship of placental edge thickness and cervical length to gestational age at delivery in patients with placenta previa. Pak J Med Sci. 2022;38(5):---------. doi: https://doi.org/10.12669/pjms.38.5.5097 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Section: Discussionsupporting

confidence: 91%

“…It is a defined risk factor for preterm birth. 4 , 5 Research has proposed that a certain degree of unprovoked placental parting do occur in such cases due to development of lower uterine segment and cervical dilatation ending up in hemorrhage and need for preterm delivery. 6 …”

Section: Introductionmentioning

confidence: 99%

Relationship of placental edge thickness and cervical length to gestational age at delivery in patients with placenta previa

Syed

Liaqat²,

Naseeb³

et al. 2022

Pak J Med Sci

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“…Although these findings corroborate previous studies, previous studies have seldom investigated the risk associated with different factors for different gestational age PTB subgroups. [19][20][21][22][23][24][25][26][27] In this study, mothers with placenta previa had a high risk for delivering infants belonging to all 3 subgroups of preterm birth and had the highest risk for delivering early preterm birth infants (40 times compared to mothers who did not have placenta previa). This can be explained by the abnormal position of the placenta, wherein uterine contraction can lead to heavy bleeding, thus warranting immediate delivery and consequently translating into a higher prevalence of placenta previa in the second trimester (2%-10%) than at term (0.3%-0.5%).…”

Section: Multinomial Multivariate Logistic Regression Comparing Prete...mentioning

confidence: 73%

Prevalence of preterm birth and risk factors associated with it at different gestational ages

Zhang

Zhu

et al. 2022

SMJ

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،25.892-66.589 95% ‫؛‬aOR=41.523( ‫والسلى‬ ‫املشيمة‬ ‫التهاب‬ ،)CI ،32.006-50.099 95% ‫؛‬aOR=40.043( ‫ضغط‬ ‫ارتفاع‬ ‫واضطرابات‬ ،)CI ،8.738-14.021 95% ‫؛‬aOR=11.069( .)CI ،2.930-4.335 95% ‫؛‬HDP( )aOR=3.564( ‫احلمل‬ ‫أثناء‬ ‫الدم‬ ‫في‬ PTB ‫مع‬ ‫كبير‬ ‫بشكل‬ )ICP( ‫الكبد‬ ‫داخل‬ ‫الصفراوي‬ ‫الركود‬ ‫ارتبط‬ ‫خاصة‬ ،)CI ،5.049-6.577 95% ‫؛‬aOR=5.763( ‫ا‬ ً ‫أسبوع‬ 34-36 ‫داء‬ ‫ارتبط‬ .)CI ،8.79-11.47 95% ‫؛‬aOR=10.04( ‫العفوي‬ PTB ‫مع‬ ‫فقط‬ ‫ا‬ ً ‫أسبوع‬ 34-36 ‫في‬ PTB ‫مع‬ ‫كبير‬ ‫بشكل‬ )GDM( ‫احلمل‬ ‫سكري‬ .)CI ،1.054-1.267 95% ‫؛‬aOR=1.156( HDP‫و‬ ‫والسلى،‬ ‫املشيمة‬ ‫التهاب‬ ‫املنزاحة،‬ ‫املشيمة‬ ‫املشيمة،‬ ‫انفصال‬ ‫اخلالصة:‬ ‫متأخر.‬ PTB ‫ب‬ ‫ا‬ ‫تنبؤً‬ ‫أكثر‬ ICP‫و‬ GDM ‫كان‬ ‫املبكر:‬ PTB ‫ـ‬ ‫ل‬ ‫تنبؤيه‬ ‫أكثر‬ ‫كانت‬ Objectives: To investigate the prevalence of preterm birth (PTB) and the risk factors for different gestational age subgroups of preterm birth in China. Methods:We carried out a descriptive cross-sectional study encompassing all singleton live births (24 +0 to 41 +6 weeks) with completed data in 23 provinces in China from 2010 to 2017 during investigation period. We compared both the preterm group (24 +0 to 36 +6 weeks) and preterm subgroups (>32 weeks, 32 +0 to 33 +6 weeks, and 34 +0 t0 36 +6 weeks) with the term group (37 +0 to 41 +6 weeks). We collected information on maternal and fetal characteristics from medical records. Logistic regression was use.

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“…Nonetheless, this holds both similarities and contrast to the findings published by researchers from other parts of the world. 22,23 Global epidemiological surveys have reported lowest prevalence of chronic hypertension in the Scandinavian countries and the highest in the united stated and western Europe. Though it is noteworthy that the western regions of the world are economically affluent and are a part of the developed world, the health scenarios are quite different.…”

Section: Discussionmentioning

confidence: 99%

Fetomaternal Outcomes of Pregnancy among Women suffering from Chronic hypertension

Nayab¹,

Khowaja²,

Memon³

et al. 2022

JAFMDC

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Objective: To observe the association of chronic hypertension in pregnant women on their health and fetal outcome. Methodology: This cross-sectional study was carried out from September 2019 to September 2020 upon a sample of 183 consenting pregnant women (chosen via non-probability – consecutive sampling) aged 20 – 35 years admitted to the study setting via OPD and emergency at Gynae Unit IV, Liaquat University of Medical & Health Sciences, Jamshoro (LUMHS). The data obtained was recorded on structured questionnaire comprising of inquiries pertaining to basic biodata, sociodemographic details, inferences obtained from history, clinical examination, and blood pressure. Data obtained was analyzed using SPSS V. 21.0. Results: The mean age of the women was 24 years ±3 SD. The mean gestational age was 38 weeks (±1 SD). A majority of the participants hailed from an urban background and most presented as booked elective cases (normal delivery more often than cesarean delivery). Chronic hypertension (mean value 134/92) was present among 38.8% of the study participants. Poor maternal and fetal outcome were encountered among patients with chronic hypertension. Conclusion: A heavy burden of chronic hypertension was unearthed by this study which consisted of around 2/5th of whole sample. Adverse maternal outcomes including postpartum hemorrhage, eclampsia & spontaneous abortion and fetal (low birth weight & neonatal deaths complications were strongly associated with chronic hypertension.

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Prevalence and risk factors of preterm birth in Pakistan

Cited by 13 publications

References 0 publications

Relationship of placental edge thickness and cervical length to gestational age at delivery in patients with placenta previa

Relationship of placental edge thickness and cervical length to gestational age at delivery in patients with placenta previa

Prevalence of preterm birth and risk factors associated with it at different gestational ages

Fetomaternal Outcomes of Pregnancy among Women suffering from Chronic hypertension

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