Low Implanted Second Trimester Placenta and Placenta Previa

The Prediction of Risk Factors of Progression of Low Implanted Placenta at 18- 24 Weeks to Placenta Previa at Term

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT03431116

Enrollment

Registered

2018-02-13

Start date

2016-10-01

Completion date

2017-04-30

Last updated

2018-02-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Placenta Previa

Brief summary

Placenta Previa is defined as a placenta implanted in the lower segment of the uterus, presenting ahead of the leading pole of the fetus (over or near the internal os). The prevalence of placenta previa has been estimated to be approximately 0.5% of all pregnancies, and this increase correlates to the elevated cesarean section rate . In Egypt, the prevalence of placenta previa is around 1.3% in Sohag Governorate and 1.5% in Aswan region according to. Although various studies have tried to address risk factors associated with Placenta Previa development, the etiology of placenta previa still remains obscure. Several risk actors have been identified as strong contributors to placenta previa development. It is also a significant contributor to severe postpartum hemorrhage.Risk factors include; history of previous cesarean section, advanced maternal age, history of previous abortions, high parity and substance abuse during pregnancy (cigarette smoking), placental size (multiple pregnancy), endometrial damage (previous dilatation and curettage), uterine scars and pathology (previous myomectomy or endometritis), placental pathology (marginal cord insertions and succenturiate lobes), previous placental Previa, and curiously.

Interventions

RADIATIONultrasound

to detect the placental site

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

FEMALE

Age

20 Years to 45 Years

Healthy volunteers

Yes

Inclusion criteria

1. Pregnant women between 18-24 weeks. 2. Diagnosed to have low implanted placenta by ultrasound

Exclusion criteria

1. Patient refused to follow-up in our setting. 2. Patient refused to perform Trans-vaginal ultrasound in the second trimester of gestation.

Design outcomes

Primary

Measure	Time frame
The distance between lower edge of the placenta and internal os by ultrasound (millimeter)	12 weeks

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026