Prediction of Platelet Function Using Viscoelastic Test (ROTEM® Sigma) in Obstetric Anesthesia. (NCT07616349) | Clinical Trial Compass
RecruitingNot Applicable
Prediction of Platelet Function Using Viscoelastic Test (ROTEM® Sigma) in Obstetric Anesthesia.
Spain85 participantsStarted 2026-05-01
Plain-language summary
This prospective observational, non-interventional, single-center study aims to evaluate whether the viscoelastic parameter PLTEM, derived from ROTEM® sigma testing (EXTEM-A5 minus FIBTEM-A5), can accurately estimate platelet count in obstetric patients with thrombocytopenia and/or severe postpartum hemorrhage.
The study will include pregnant women older than 18 years managed during labor and delivery at the Hospital General Universitario Gregorio Marañón, Madrid (Spain).
The primary objective is to validate the clinical usefulness of PLTEM as a rapid point-of-care tool to support clinical decision-making regarding neuraxial anesthesia and transfusion management in obstetric emergencies.
Who can participate
Age range
18 Years
Sex
FEMALE
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria:
* Parturients with a suspicion or confirmed thrombocytopenia before delivery (platelet count \< 120x10\^9/L),
* Parturients with severe postpartum haemorrhage (blood loss \>1500 mL) with a suspicion of thrombocytopenia.
Exclusion criteria:
* parturient age under 18 years;
* refusal to participate
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
To evaluate the correlation between PLTEM value and platelet count on hemogram
Timeframe: At admission to the labour ward in case of thrombocytopenia inferior to 120,000 /mm^3 platelets in the third trimester of pregnancy, or at diagnosis of a severe Post-Partum Hemorrhage > 1,500 mL, until 24 hours after delivery or cesarean delivery.