IRCT20091201002801N5 IRCT 2023-02-09 Mazandaran University of Medical Sciences Comparison of the use of plastic caps with cotton caps in the delivery room to prevent hypothermia in extremely & very premature infants Comparison of the use of plastic caps with cotton caps in the delivery room to prevent hypothermia in extremely & very premature infants 2023-04-21 anticipated 68 Complete https://irct.ir/trial/68485 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Prevention, Other design features: So far, no study has been conducted in the field of covering the head with a plastic cap, especially at a very low gestational age in premature infants of 25 to 32 weeks, Randomization description: Randomization is done just before the delivery of the infant. Randomization is done as parallel two groups (intervention group and control group) and as two block permuted (for each group two blocks of 28-32 weeks and 25-27 weeks) to remove the intervening factor of gestational age. Randomization is created by the list of numbers generated by the computer and placed in sealed envelopes. Right after delivery, the resident is seen in the resuscitation team and the baby is placed in the appropriate group. For multiple births, each child is randomized separately. N/A Hypothermia of newborn. Intervention 1: Intervention group: infants who receive plastic caps. Intervention 2: Control group: infants who receive cotton caps. No - There is not a plan to make this available Justification or reason for not sharing IPD is It will be published later in the form of a controlled clinical trial article.