An interventional study of Temporary Uterine-Angle Clamping in Maternal Blood Loss During Cesarean Delivery, sponsored by Baskent University. Completed at 1 site in Turkey (Türkiye). Open to female participants. Per ClinicalTrials.gov, last updated 2026-10-08.
Sponsored by Baskent University · Not applicable, Interventional, and Prevention
This randomized controlled study evaluated whether temporary clamping of the lateral angles of the uterine incision during a standardized 60-second delayed umbilical cord-clamping period reduces maternal blood loss in women undergoing planned term cesarean delivery. Participants were randomized in a 1:1 ratio to uterine-angle clamping or control. Both groups underwent 60-second delayed cord clamping. Maternal blood loss was assessed using calculated estimated blood loss based on preoperative and 24-hour postoperative hematocrit values.
Baskent University is the lead sponsor of 209 studies on the registry; 35 are open to participants now.
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Exclusion Criteria:
Immediately after fetal delivery and while the placenta remained in situ, both lateral angles of the uterine incision were temporarily clamped with ovarian clamps. The umbilical cord was clamped and cut 60 seconds after birth. The clamps were removed when closure of the uterine incision was initiated after placental delivery.
Procedure: Temporary Uterine-Angle Clamping
Participants underwent 60-second delayed umbilical cord clamping without application of clamps to the uterine incision angles. All other aspects of the surgical technique were identical to those used in the intervention group.
Temporary mechanical clamping of both lateral angles of the low transverse uterine incision during the 60-second delayed cord-clamping interval.
Calculated Estimated Blood Loss (cEBL)
Maternal blood loss calculated using the Stafford method from estimated maternal pregnancy blood volume and the proportional change between preoperative and 24-hour postoperative hematocrit.
Time frame: within 24 hours after cesarean delivery
Change in Hemoglobin Concentration
Difference between preoperative and 24-hour postoperative hemoglobin concentration.
Time frame: Baseline ( preoperative)and 24 hours after cesarean delivery
Change in Hematocrit
Difference between preoperative and 24-hour postoperative hematocrit.
Time frame: Baseline ( preoperative ) and 24 hours after cesarean delivery
Calculated Estimated Blood Loss of at Least 500 mL
Proportion of participants with calculated estimated blood loss of at least 500 mL.
Time frame: 24 hours after cesarean delivery
Calculated Estimated Blood Loss of at Least 1000 mL
Proportion of participants with calculated estimated blood loss of at least 1000 mL.
Time frame: 24 hours after cesarean delivery
Blood Transfusion Requirement
Requirement for maternal blood transfusion.
Time frame: From cesarean delivery until hospital discharge, up to 7 days postpartum
Operation Duration
from cesarean delivery through 24 hours postpartum
Time frame: During cesarean delivery
Umbilical Artery pH
Umbilical artery pH measured after delivery.
Time frame: At delivery
Neonatal Intensive Care Unit Admission
Admission of the neonate to the neonatal intensive care unit.
Time frame: from birth until hospital discharge, up to 7 days after birth
Length of Hospital Stay
Maternal length of hospital stay in days.
Time frame: From cesarean delivery until hospital discharge, up to 7 days postpartum
Plan to share: No
No publications or documents are linked to this record.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is completed, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.
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