26 April 2010

Preemies risk psychiatric problems

Premature babies are at a higher risk for later cognitive, neuromotor, and sensory impairments.


Significant advances in the neonatal intensive care have resulted in increased survival rates of children who are born at less than 26 weeks of gestation, so termed "extremely preterm children". Notably, however, improved survival rates have been accompanied by a higher risk for later cognitive, neuromotor, and sensory impairments in these children.

An 11-year follow-up study of 219 extremely preterm children by Johnson and colleagues sought to determine the prevalence and risk factors for psychiatric disorders in this population. The researchers discovered that almost one quarter of extremely preterm children had a psychiatric disorder at 11 years of age. The most frequent psychiatric conditions were Attention-Deficit/Hyperactivity Disorder (12%), emotional disorders (9%), and Autism Spectrum Disorders (8%). The investigation also reports a threefold overall greater risk of subsequent mental health problems in those children born prematurely. The findings of the British researchers are reported in May 2010 issue of the Journal of the American Academy of Child and Adolescent Psychiatry.

Extremely preterm survivors

This is the first study to systematically investigate the prevalence of psychiatric disorders in a contemporary population of extremely preterm survivors. The data were collected as part of the EPICure Study which followed up extremely preterm children born in the United Kingdom and Ireland at 1 year, 2.5 years, 6-8 years, and 10-11 years. The EPICure study, established in 1995, was intended to determine the chances of survival and subsequent health of survivors.

In the journal article titled "Psychiatric Disorders in Extremely Preterm Children: Longitudinal Finding at Age 11 Years in the EPICure Study," Dr Johnson and colleagues state: "Clinically, the findings suggest that much greater emphasis should be placed on early cognitive and psychological monitoring of extremely preterm children for emerging neuropsychiatric and emotional disorders. Routine cognitive and behavioral screening throughout the preschool period may help to facilitate early psychiatric referral and therefore be beneficial for extremely preterm children and their families."

Commenting on the findings Dr Joan L. Luby states: "New findings from the EPICure study, the largest and longest investigation of psychiatric outcomes in premature infants conducted to date, demonstrate marked increased behavioural risks in this population, thereby shedding some of the brightest and most elucidating light on this area yet available." - (EurekAlert!, April 2010)


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