Abstract
Objective The purpose of this study was to determine when dolichocephaly develops in preterm
infants, to establish factors that contribute to its development, and to determine
its association with adverse motor outcomes.
Study Design This study was a retrospective review of data collected from preterm infants born
at < 32 weeks' gestation. The cranial index was measured by a physical therapist (PT)
at three time points during hospitalization. Demographic data, neonatal morbidities,
and motor outcomes at outpatient follow-up were collected.
Results Overall, 54% of infants developed dolichocephaly during hospitalization. The presence
of dolichocephaly was highest in infants between 32 and 34 weeks' postmenstrual age
(PMA) (39%). Birth weight, gestational age, bronchopulmonary dysplasia, gastroesophageal
reflux disease, and severe intraventricular hemorrhage were not associated with dolichocephaly.
Infants with dolichocephaly at 32 to 34 weeks' PMA were more likely to either be receiving
PT services or be referred to PT services by outpatient follow-up (p = 0.05).
Conclusion The presence of dolichocephaly was highest in infants between 32 and 34 weeks' PMA
and was associated with increased need for PT services in early infancy. Findings
support early developmental intervention at < 32 weeks' PMA to prevent and/or treat
cranial molding deformity and improve early motor outcomes.
Keywords
dolichocephaly - preterm infants - developmental outcome - physical therapy - cranial
molding - cranial index - motor outcomes - risk factors