Morbidly Adherent Placenta, Diagnosis and Proper Management
Study Details
Study Description
Brief Summary
The main idea of this study is to establish the diagnostic criteria for cases of morbidly adherent placenta (MAP) using different ultrasonographic modalities and compare this with intra-operative findings and postoperative histopathological assessment
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
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Detailed Description
This study is a clinical trial that will include all patients fulfilling the eligibility criteria and presented to the emergency unit of the department of Obstetrics and Gynecology in Sohag University hospital (Egyptian tertiary referral hospital) between February 2022 and February 2023. The attending physician will explain the nature of the study and all patients will be asked to sign an informed consent. A senior physician will evaluate the patient to confirm the diagnosis of placenta previa and degree of invasion in query accreta patients by using transabdominal and transvaginal US (Voluson,p8). 2D gray scale ultrasound, color and power doppler ultrasound will be performed firstly followed by 3D ultrasound.
All data will be saved in closed excel sheet and patients will be operated by a different surgical team, intraoperative staging of degree of placental invasion will be done according to clinical grading system by Collins et al., 2015 [5] in addition to histopathological evaluation when available, such as in cases of hysterectomy and cases with anterior placenta who were treated by excision of part of anterior uterine wall suitable for histopathological evaluation.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| MAP patients All pregnancies complicated with any degree of Placenta previa anterior, posterior or centralis undergoing pre-labor CS at gestational age (36+0 to 40+0) |
Diagnostic Test: Two dimensional ultrasonography power and color doppler
transabdominal and transvaginal two-dimensional power Doppler ultrasound volumes of the placental bed were obtained according to a predefined protocol with the participant in a semi-recumbent position and a full bladder using a RAB4-8-D 3D/4D curved array abdominal transducer (4-8.5 MHz) on a Voluson E8. Predetermined machine settings were used. To allow for differences in attenuation of the power Doppler signal resulting from variation in placental site and maternal adiposity.
Intraoperative staging of degree of placental invasion will be done according to clinical grading system by Collins et al., 2015.
Specimens obtained from patients who underwent hysterectomy or resection of segment of anterior uterine wall in cases with anterior placenta previa will be immersed in formalin 10% concentration and will be sent for histopathological evaluation that will be done by the same pathologist.
Other Names:
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Outcome Measures
Primary Outcome Measures
- Acurray of ultrasonographic features for diagnosis of different degrees of MAP [All pregnancies complicated by any degree of placenta previa undergoing pre-labor CS at gestational age (36+0 to 40+0) weeks]
The sensitivity and specificity of the ultrasonographic findings of MAP according to the final intraoperative diagnosis and available histopathological data
Secondary Outcome Measures
- The validity of ultrasonographic findings of MAP for selecting the appropriate surgical intervention [All pregnancies complicated by any degree of placenta previa undergoing pre-labor CS at gestational age (36+0 to 40+0) weeks]
- Evaluating the accuracy of this criteria in all types of placenta previa [All pregnancies complicated by any degree of placenta previa undergoing pre-labor CS at gestational age (36+0 to 40+0) weeks]
- Studying all factors that may affect the accuracy of this criteria such as number of previous CS, qualifications of the previous CS, presence or absence of antepartum hemorrhage. [All pregnancies complicated by any degree of placenta previa undergoing pre-labor CS at gestational age (36+0 to 40+0) weeks]
Eligibility Criteria
Criteria
Inclusion Criteria:
- o All pregnancies complicated with any degree of Placenta previa anterior, posterior or centralis undergoing pre-labor CS at gestational age (36+0 to 40+0), patients will be divided into subgroups according to number of previous CS, presence or absence of antepartum hemorrhage and qualifications of operative theatre in previous deliveries (public or private sector).
Exclusion Criteria:
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Women with history of medical co-morbidities such as chronic hypertension, Diabetes mellitus, renal diseases, autoimmune diseases, history of organ transplantation and immunosuppressive therapy, hematological diseases, history of thrombotic events, cardiopulmonary diseases, liver diseases Acute and chronic inflammatory diseases.
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Pregnancy induced medical disorders like: Gestational hypertension, preeclampsia, Gestational diabetes, Gestational thrombocytopenia and proteinuria.
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Fetal anomalies.
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Emergency CS if the patient is in labor.
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Sohag University, Medical school | Sohag | Egypt | 82524 |
Sponsors and Collaborators
- Sohag University
Investigators
None specified.Study Documents (Full-Text)
None provided.More Information
Publications
- Collins SL, Stevenson GN, Al-Khan A, Illsley NP, Impey L, Pappas L, Zamudio S. Three-Dimensional Power Doppler Ultrasonography for Diagnosing Abnormally Invasive Placenta and Quantifying the Risk. Obstet Gynecol. 2015 Sep;126(3):645-653. doi: 10.1097/AOG.0000000000000962.
- Collins SL, Stevenson GN, Noble JA, Impey L, Welsh AW. Influence of power Doppler gain setting on Virtual Organ Computer-aided AnaLysis indices in vivo: can use of the individual sub-noise gain level optimize information? Ultrasound Obstet Gynecol. 2012 Jul;40(1):75-80. doi: 10.1002/uog.10122.
- Gielchinsky Y, Rojansky N, Fasouliotis SJ, Ezra Y. Placenta accreta--summary of 10 years: a survey of 310 cases. Placenta. 2002 Feb-Mar;23(2-3):210-4.
- Hecht JL, Baergen R, Ernst LM, Katzman PJ, Jacques SM, Jauniaux E, Khong TY, Metlay LA, Poder L, Qureshi F, Rabban JT 3rd, Roberts DJ, Shainker S, Heller DS. Classification and reporting guidelines for the pathology diagnosis of placenta accreta spectrum (PAS) disorders: recommendations from an expert panel. Mod Pathol. 2020 Dec;33(12):2382-2396. doi: 10.1038/s41379-020-0569-1. Epub 2020 May 15. Review.
- Jauniaux E, Collins SL, Jurkovic D, Burton GJ. Accreta placentation: a systematic review of prenatal ultrasound imaging and grading of villous invasiveness. Am J Obstet Gynecol. 2016 Dec;215(6):712-721. doi: 10.1016/j.ajog.2016.07.044. Epub 2016 Jul 26. Review.
- Palacios Jaraquemada JM, Bruno CH. Magnetic resonance imaging in 300 cases of placenta accreta: surgical correlation of new findings. Acta Obstet Gynecol Scand. 2005 Aug;84(8):716-24.
- Publications Committee, Society for Maternal-Fetal Medicine, Belfort MA. Placenta accreta. Am J Obstet Gynecol. 2010 Nov;203(5):430-9. doi: 10.1016/j.ajog.2010.09.013. Review.
- Soh-Med-22-01-35