At Hope for HIE, we follow the latest research to share how science is moving the needle on preventing and improving outcomes in hypoxic ischemic encephalopathy (HIE). Recent studies highlight important progress in obstetrical care — from better ways to read fetal heart rate patterns during labor, to tools that help doctors make safer, more consistent decisions in the delivery room.
At the same time, global data shows that while rates of HIE are holding steady or declining in many regions, outcomes are improving thanks to advances in care. Together, these findings offer hope: prevention is possible, survival is improving, and more babies are being identified and supported earlier.
A new study in the American Journal of Obstetrics & Gynecology looked at how a baby’s heart rate pattern changes during labor and whether this information can help doctors know which babies are most at risk for brain injury.
What they wanted to know
The researchers asked if looking at heart rate changes over the entire course of labor — rather than just short snapshots — could better identify babies who may develop serious oxygen problems at birth and later qualify for therapeutic hypothermia (cooling treatment).
What they found
Babies who developed metabolic acidemia (a sign of severe oxygen deprivation) and went on to need cooling had distinct heart rate changes during labor compared with babies who did not. This study showed that “tracking the story” of heart rate patterns over time, instead of only looking at individual moments, could help catch babies in trouble earlier.
What this means
If validated in larger studies, this approach could give doctors a better way to act earlier and reduce the chance of brain injury. For families, this means more hope that babies showing distress during labor can be recognized sooner and helped more quickly.
A study in AJOG Global Reports looked at a structured tool called CAESARE that helps doctors interpret fetal heart rate patterns during labor.
What they wanted to know
They wanted to know if using this tool could help doctors decide more consistently when to step in during labor — such as when to deliver a baby by cesarean — and when it is safe to continue.
What they found
In earlier work, the CAESARE tool was linked to a 10% reduction in cesarean deliveries for non-reassuring fetal heart rate patterns, without increasing risk to babies. This study further supported its role in guiding safe intrapartum management, making decisions more consistent and evidence-based.
What this means
A tool like CAESARE could make care safer for both moms and babies. It helps avoid unnecessary surgeries while also making sure babies who are truly in distress get timely intervention — both of which can lower risks that can lead to HIE.
A Frontiers in Public Health study analyzed global data from 1990 to 2021 to see how many babies are developing HIE (called “neonatal encephalopathy” in the study), how many survive, and how outcomes differ between high-income countries (HICs) and low- and middle-income countries (LMICs).
What they wanted to know
The researchers wanted to find out if improvements in obstetric and newborn care — such as better monitoring during labor and wider use of therapeutic hypothermia — are reducing the number of babies with HIE and improving survival, and how progress looks across different parts of the world.
What they found
What this means
This study is good news overall: globally, fewer babies are developing HIE and more are surviving with better outcomes. The rise in prevalence is actually a hopeful sign that babies are being identified more accurately and living longer, not that HIE itself is increasing. The challenge ahead is closing the gap so families everywhere have access to the same life-saving care.
For families in the HIE community, these findings bring both hope and urgency:
At Hope for HIE, we celebrate these advances and continue to advocate for equitable access to high-quality obstetric and neonatal care for all families, worldwide.
👉 Stay connected with Hope for HIE to learn more about the latest research, resources, and support for families and professionals working together to improve outcomes.
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