Insufficient vitamin D supplement use during pregnancy and early childhood: a risk factor for positional skull deformation.

Vitamin D insufficiency during pregnancy is associated with disturbed skeletal homeostasis during infancy. Our aim was to investigate the influence of adherence to recommendations for vitamin D supplement intake of 10 μg per day (400 IU) during pregnancy (mother) and in the first months of life (child) on the occurrence of positional skull deformation of the child at the age of 2 to 4 months. In an observational case-control study, two hundred seventy-five 2- to 4-month-old cases with positional skull deformation were compared with 548 matched controls.

Response to pediatric physical therapy in infants with positional preference and skull deformation.

Background: Pediatric physical therapy seems to reduce skull deformation in infants with positional preference. However, not all infants show improvement.

Objective: The study objective was to determine which infant and parent characteristics were related to responses to pediatric physical therapy in infants who were 2 to 4 months old and had positional preference, skull deformation, or both.

Helmet therapy in infants with positional skull deformation: randomised controlled trial.

Objective: To determine the effectiveness of helmet therapy for positional skull deformation compared with the natural course of the condition in infants aged 5-6 months.

Design: Pragmatic, single blinded, randomised controlled trial (HEADS, HElmet therapy Assessment in Deformed Skulls) nested in a prospective cohort study.

Setting: 29 paediatric physiotherapy practices; helmet therapy was administered at four specialised centres.

Parents' decision for helmet therapy in infants with skull deformation.

Purpose: Helmet therapy is regularly prescribed in infants with positional skull deformation. Evidence on the effectiveness is lacking, which complicates decision making. This study aims to assess the relation between parents' decision for treatment of skull deformation in their infant and their level of anxiety, decisional conflict, expectations of treatment effect, perceived severity of deformation and perceived side effects.

HElmet therapy Assessment in infants with Deformed Skulls (HEADS): protocol for a randomised controlled trial.

Background: In The Netherlands, helmet therapy is a commonly used treatment in infants with skull deformation (deformational plagiocephaly or deformational brachycephaly). However, evidence of the effectiveness of this treatment remains lacking. The HEADS study (HElmet therapy Assessment in Deformed Skulls) aims to determine the effects and costs of helmet therapy compared to no helmet therapy in infants with moderate to severe skull deformation.