Macroscopic Deciduosis in Pregnancy is Finally a Common Entity

The purpose of this study is to determine the prevalence of macroscopic deciduosis found randomly in Cesarean sections and the secondary objective to determine the association with any obstetrical complications or adverse effects.

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Key information

Conditions

Deciduitis; Complicating Pregnancy Female Urogenital Diseases and Pregnancy Complications Neoplasms Pregnancy Complications Urogenital Diseases

Age range

18 year–50 year

Sex eligibility

Female

Study type

Observational

Primary location

Hôpital NOVO

Cergy-Pontoise, 95300, France

About this study

Ectopic decidua or deciduosis is defined as the extrauterine location of decidual tissue and can occur in the cervix, vagina and various abdominal organs like the ovary omentum, appendix, peritoneum, the pelvic lymph nodes. Other rare sites with deciduosis include the kidneys , the lungs and even the skin . Decidualization is a physiologic process during pregnancy, under the influence of ovarian and placental steroid secretion, with total involution in the four to six week post partum period.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

All cesarean section

Exclusion criteria

Patients refusing to participate

Treatment and study plan

Macroscopic deciduosis

Other

Deciduosis is a benign lesion during pregnancy that is not correlated with obstetrical complications. Our study has shown that this physiological phenomenon is more frequent that originally thought, being present in 10% of the Cesarean sections, and is associated with abdominal pain during pregnancy.

Primary outcomes

All cases of cesarean section.

Time frame: During cesarean section.

The purpose of this study is to measure the number of participants who developed macroscopic decidosis in caesareans.

Sponsors and collaborators

Lead sponsor

Hôpital NOVO

Other

Registry information

Acronym: Deciduose

Important dates

Study start: 2011
Primary completion: 2014
Study completion: 2014
First posted: Nov 30, 2017
Registry last updated: Jun 9, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed