No drop in IQ seen after bypass for child hea...(se have sometimes suffered adverse neuro...),Health

In the current study, researchers compared 41 pediatric heart patients who underwent CPB to a control group receiving non-heart-related surgery without CPB. Neurological and developmental testing were performed two weeks before and six months after surgery in both groups. When controlling for the effects of hospitalization and anxiety, the researchers found no significant difference between the two groups in I.Q. scores and tests of memory, motor skills or attention. Neither of the surgical groups showed a decline in neuropsychological scores after surgery.

Regarding the implications of the study, Quartermain said, "It is often challenging for the cardiologist to determine the optimal time to refer a child without symptoms to the operating room for repair of an underlying congenital heart defect. It is now clear that the potential neurodevelopmental sequelae of cardiopulmonary bypass in this group of school-aged patients should not be a major factor in this important decision."

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