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Women who naturally deliver a singleton will be invited to participate the study. Weekly transabdominal and/or transvaginal ultrasound examinations will be offered until the uterus is completely involuted. The pattern of involution will be analyzed.
Women who naturally deliver a singleton in the Department of Obstetrics and Gynecology, Faculty of Medicine Siriraj Hospital will be invited to participate the study. Weekly transabdominal and/or transvaginal ultrasound examinations will be offered until the uterus is completely involuted. Transabdominal or transvaginal approach will be at the examiner's discretion. Uterine volume will be measured with 3-dimensional sonographic technologies. Ovaries will also be assessed, along with Doppler flow in several vessels in the pelvis. The pattern of involution will be analyzed.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Postpartum women | Women who deliver a singleton vaginally |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Ultrasound examination | Other | Sequential three-dimension sonographic examination for the uterine size after vaginal delivery. The examination will be performed once a week, until the completion of 7 weeks after delivery. |
| Measure | Description | Time Frame |
|---|---|---|
| To create the uterine involution curve after vaginal delivery | 7 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| To assess an alteration in Doppler parameters in arcuate, uterine and ovarian arteries after vaginal delivery | 7 weeks |
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Inclusion Criteria:
Exclusion Criteria:
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Women who deliver a singleton vaginally will be invited to participate the study.
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| Name | Affiliation | Role |
|---|---|---|
| Tuangsit Wataganara, MD | Siriraj Hospital | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Faculty of Medicine Siriraj Hospital | Bangkok | 10700 | Thailand |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 25363015 | Derived | Wataganara T, Phithakwatchara N, Komoltri C, Tantisirin P, Pooliam J, Titapant V. Functional three-dimensional sonographic study of the postpartum uterus. J Matern Fetal Neonatal Med. 2015;28(18):2221-7. doi: 10.3109/14767058.2014.983063. Epub 2014 Nov 27. |
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| ID | Term |
|---|---|
| D049590 | Postpartum Period |
| ID | Term |
|---|---|
| D055703 | Reproductive Physiological Phenomena |
| D012101 | Reproductive and Urinary Physiological Phenomena |
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