Preterm Babies Face Hidden Brain Risks Without Clear Treatment Guidelines

A new systematic review in Pediatric Research highlights the risks of two serious brain conditions in preterm infants: perinatal arterial ischemic stroke (PAIS) and neonatal cerebral sinovenous thrombosis (CSVT). The study analyzed 132 cases of PAIS and 57 cases of CSVT in babies born before 37 weeks, covering research from 2004 to 2025. Both conditions are linked to long-term health problems, yet no country has established official guidelines for their diagnosis or treatment.

The review found that the risk of PAIS and CSVT rises as gestational age drops, making extremely premature babies the most vulnerable. Perforator artery strokes were the most common type of PAIS, while CSVT frequently affected the transverse sinus. Key risk factors for PAIS included twin-to-twin transfusion syndrome, abnormal fetal heart rates, and low blood sugar after birth.

Diffusion-weighted imaging (DWI) proved more effective than standard scans at detecting early brain injury from these conditions. Despite this, diagnosis remains difficult due to subtle symptoms and overlapping risk factors. Left untreated, both PAIS and CSVT can lead to severe complications, such as cerebral palsy, motor and cognitive delays, epilepsy, and even death—particularly in CSVT cases.

Researchers also noted a lack of large-scale studies focused solely on preterm infants. This gap in knowledge makes it harder to develop prevention strategies or treatment protocols. Currently, no national or international clinical guidelines exist for managing these conditions in preterm babies.

The study underscores the urgent need for better diagnostic tools and treatment standards for PAIS and CSVT in preterm infants. Early detection through advanced imaging like DWI could improve outcomes, but challenges remain due to limited research and complex risk factors. Without official guidelines, healthcare providers must rely on fragmented evidence when caring for these vulnerable patients.