- Premature infants are at risk for certain brain injuries.
- Infants with these injuries are at increased risk for certain psychiatric disorders in adolescence.
- Findings could lead to better understanding of the causes of psychiatric disorders and possible prevention.
Infants born prematurely are at risk for injuries to the white and gray matter of the brain that affect cortical development and neural connectivity. Certain forms of these injuries can be detected in the neonatal period using ultrasound, according to Columbia University Medical Center researchers.
Researchers who followed a group of premature infants until age 16 found that those with neonatal ultrasound abnormalities were at increased risk for specific psychiatric disorders, namely, attention deficit hyperactivity, tic disorders, obsessive compulsive disorder, and major depression?all of which are thought to arise from dysfunctions of the subcortical-cortical circuits. The findings were published in the July 2011 issue of the Archives of General Psychiatry.
Premature birth is a growing problem in the United States, adding to the significance of the findings. An increased appreciation of the relation between perinatal brain injuries and later psychiatric disorders could lead to earlier diagnosis and intervention by the pediatricians, psychiatrists, and neurologists who care for these children and adolescents. Future research may also explore the relation of perinatal brain injury to psychiatric disorders, such as schizophrenia, that more commonly come to clinical attention in adulthood.
A research group at Columbia University Medical Center/New York State Psychiatric Institute led by Dr. Agnes Whitaker, MD, evaluated more than 400 nondisabled adolescents who had been born prematurely and had had abnormal brain ultrasounds taken at birth. When the researchers administered questionnaires and cognitive tests to the subjects and interviewed their parents, they found a relation between perinatal brain injuries and certain psychiatric disorders at adolescence that could not be explained by other medical or social factors.
Although scientists have speculated for decades that early brain injury can have long-term psychiatric effects, these results provide the first strong empirical evidence of such a relation. “The study,” says Whitaker, a clinical professor of psychiatry in the Department of Psychiatry at Columbia University and research psychiatrist in the Division of Child and Adolescent Psychiatry at New York State Psychiatric Institute, “is a beautiful example of interdisciplinary work. The team included researchers from neonatology, pediatrics, psychiatry, and epidemiology. It couldn’t have been done otherwise.”
The study’s authors are Agnes H. Whitaker (CUMC and NYSPI), Judith F. Feldman (CUMC and NYSPI), John M. Lorenz (CUMC), Fiona McNicholas (University Hospital Dublin), Prudence W. Fisher (CUMC and NYSPI), Sa Shen (CUMC and NYSPI), Jennifer Pinto-Martin (University of Pennsylvania), David Shaffer (CUMC and NYSPI), and Nigel Paneth (Michigan State University).
The study was supported by the NIH, the March of Dimes, and the Ruane Fund.
The authors declare no financial conflict of interest.
Columbia University Medical Center provides international leadership in basic, pre-clinical, and clinical research; in medical and health sciences education; and in patient care. The medical center trains future leaders and includes the dedicated work of many physicians, scientists, public health professionals, dentists, and nurses at the College of Physicians and Surgeons, the Mailman School of Public Health, the College of Dental Medicine, the School of Nursing, the biomedical departments of the Graduate School of Arts and Sciences, and allied research centers and institutions. Established in 1767, Columbia’s College of Physicians and Surgeons was the first institution in the country to grant the M.D. degree and is among the most selective medical schools in the country. Columbia University Medical Center is home to the largest medical research enterprise in New York City and State and one of the largest in the United States. For more information, please visit www.cumc.columbia.edu.
Columbia Psychiatry is ranked among the best departments and psychiatric research facilities in the Nation and has contributed greatly to the understanding of and current treatment for psychiatric disorders. Located at the New York State Psychiatric Institute on the NewYork-Presbyterian Hospital/Columbia University Medical Center campus in the Washington Heights community of Upper Manhattan, the department enjoys a rich and productive collaborative relationship with physicians in various disciplines at Columbia University’s College of Physicians and Surgeons. Columbia Psychiatry is home to distinguished clinicians and researchers noted for their clinical and research advances in the diagnosis and treatment of depression, suicide, schizophrenia, bipolar and anxiety disorders, and childhood psychiatric disorders.