How long do phthalates from NICU plastic equipment stay in a premature baby'\''s body?

What's actually in it

NICU medical devices, including IV tubing, blood bags, feeding tubes, and ventilator circuits, are commonly made from PVC containing DEHP (di(2-ethylhexyl) phthalate) as a plasticizer. DEHP migrates from these devices into fluids and directly into premature babies' bodies through extended contact during critical care.

DEHP is an anti-androgen and endocrine disruptor. For a premature baby whose reproductive and endocrine systems are still developing outside the womb, DEHP exposure during this window is particularly concerning.

What the research says

A 2026 study on the half-life of DEHP in preterm neonates found that DEHP and its metabolites persist in premature babies significantly longer than in adults. The immature liver enzymes in preterm neonates metabolize DEHP much more slowly, meaning it accumulates during extended NICU stays. The longer the NICU stay and the more plastic medical devices involved, the higher the DEHP body burden.

DEHP-free alternatives exist for most NICU medical devices. Some hospitals have transitioned to DEHP-free IV tubing and storage bags. Parents can ask their NICU about their policy on DEHP-free equipment, particularly for long-stay premature infants.