Research in developmental disabilities · 2023
Magnetic resonance imaging brain yield in developmental delay: A developing country perspective.
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Rajvanshi Nikhil, Chacham Swathi, Ks Aswanth, Semwal Pooja, Nandolia Khanak K, Rohilla Jitendra, Saini Lokesh, Saxena Sudhir, Basu Sriparna
Аннотация
BACKGROUND: Developmental delay (DD) is an important neuro-morbidity in children affecting the quality of life. MRI plays a crucial role by delineating the underlying structural, metabolic, and genetic abnormalities.
AIM: To determine the yield of MRI brain in delineating the various underlying abnormalities and etiological factors in children with DD and to correlate these findings with the clinical presentation.
METHODS: This cross-sectional study enrolled 50 children with the developmental delay between 6 months to 6 years of age.
OUTCOMES AND RESULTS: The mean age was 31.32 ± 20.56 months. The sensitivity of MRI was 72%. 81.3% of the children with microcephaly had abnormal MRI. The most common underlying etiology was hypoxic-ischemic encephalopathy (42%), followed by congenital/developmental defects and metabolic diseases (10% each). The most commonly involved region of the cerebral cortex was the occipital lobe (44%) because of the high occurrence of coexisting hypoglycemic brain injury, which is extremely common in developing countries and rare in developed countries, with 80% of them having visual abnormalities. Frontal lobe involvement was significantly more in children with abnormal motor findings and behavioral changes. Cortical grey matter abnormalities were significantly more in children with seizures.
CONCLUSION AND IMPLICATIONS: It is to be emphasized that children with developmental delays should be evaluated with MRI whenever possible. Apart from hypoxic-ischemic encephalopathy, other etiologies should also be looked for.
AIM: To determine the yield of MRI brain in delineating the various underlying abnormalities and etiological factors in children with DD and to correlate these findings with the clinical presentation.
METHODS: This cross-sectional study enrolled 50 children with the developmental delay between 6 months to 6 years of age.
OUTCOMES AND RESULTS: The mean age was 31.32 ± 20.56 months. The sensitivity of MRI was 72%. 81.3% of the children with microcephaly had abnormal MRI. The most common underlying etiology was hypoxic-ischemic encephalopathy (42%), followed by congenital/developmental defects and metabolic diseases (10% each). The most commonly involved region of the cerebral cortex was the occipital lobe (44%) because of the high occurrence of coexisting hypoglycemic brain injury, which is extremely common in developing countries and rare in developed countries, with 80% of them having visual abnormalities. Frontal lobe involvement was significantly more in children with abnormal motor findings and behavioral changes. Cortical grey matter abnormalities were significantly more in children with seizures.
CONCLUSION AND IMPLICATIONS: It is to be emphasized that children with developmental delays should be evaluated with MRI whenever possible. Apart from hypoxic-ischemic encephalopathy, other etiologies should also be looked for.