Vasowatch: Predicting postpartum hemorrhage with maternal heart data
Official title: VIBRANT: Postpartum Hemorrhage Risk Prediction using Maternal Heart Rate
Funded at Vasowatch LLC · NIH-11316152 · Data updated 2026-11-12
A new monitoring system uses heart-rate data to predict postpartum hemorrhage hours before delivery, helping care teams act sooner.
Quick facts
| Grant type | Sbir 2 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Vasowatch LLC NIH-funded |
| Lab location | 1 site (Philadelphia, United States) |
| Project start | May 1, 2022 |
| Project end | August 31, 2027 |
| Funding year | 2026 |
| Award (this year) | $1,249,147 |
| NIH project number | 2R44HL164191-02A1 |
| Project ID | NIH-11316152 on NIH RePORTER |
Who could benefit from this research
✓Could help
Pregnant individuals approaching delivery who would benefit from enhanced risk monitoring for postpartum hemorrhage.
✕Less likely to help
Patients not at risk of PPH or those delivering without using the monitoring system may not directly benefit.
What this research studies
This project aims to bring a continuous, low-burden monitoring tool into obstetric care to identify women at risk of heavy bleeding after birth. It builds on prior work showing the tool can flag high-risk cases 2–8 hours before delivery with high sensitivity and specificity. The team will further evaluate the system’s real-time decision support and its ability to support clinical planning and timely interventions for mothers and babies. The work is conducted at an obstetric setting with the goal of regulatory-readiness and eventual clinical use.
Why it matters
Potential benefit: If successful, it could enable earlier interventions to prevent severe bleeding and related complications.
How similar studies have gone: Previous cohort data showed strong performance in predicting PPH, supporting further validation in broader settings.
Where this research is happening
-
Vasowatch LLC
Philadelphia, United States Active
Researchers
- Principal investigator: Rohan, Christine — Vasowatch LLC
- Study coordinator: Rohan, Christine
Related research
Other NIH-funded projects on the same topics.
-
Wearable tech to track blood loss during childbirth
A wearable device monitors cardiovascular signals to detect postpartum hemorrhage early so clinicians can act quickly to protect mothers.
-
Maternal Postpartum Monitoring with a Wearable Sensor (MOMS)
A wearable system called MOMS will continuously monitor multiple physiological signals in pregnant people to detect postpartum hemorrhage earlier than standard vital signs.
-
AI-powered real-time postpartum hemorrhage risk predictor in clinical care
A real-time AI tool integrated into electronic health records helps identify women at risk for postpartum hemorrhage so clinicians can intervene earlier.
-
Targeting Ubiquitination to Improve Uterotonic Therapies in Postpartum Hemorrhage
A new approach aims to boost uterine contractions during childbirth and after delivery by understanding how a hormone receptor is regulated, potentially reducing postpartum hemorrhage risk.
-
Personalized Postpartum Bleeding Risk Prediction with Machine Learning and Genetic Scores
This grant aims to create a personalized tool that predicts a mother’s risk of postpartum hemorrhage using machine learning and her genetic information.
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OPTIMUM OB-TXA: Timing, route, and dose of tranexamic acid to prevent postpartum bleeding before cord clamping
Aims to find the best time, method, and amount of tranexamic acid given before cord clamping to prevent postpartum hemorrhage in new mothers and protect babies.
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page.