Patient's question:
Parents are first cousins, which means they are close relatives. They previously had a child with cerebral palsy and now wish to have another child, but they are afraid of the genetic risks associated with inbreeding between generations.Doctor's answer:
Analysis of the condition: Generally speaking, cerebral palsy in children is basically unrelated to chromosomal abnormalities. Cerebral palsy refers to a non-progressive brain injury syndrome caused by various reasons from before birth to within one month after birth. The main manifestations are central motor disorders and abnormal posture, often accompanied by multiple impairments such as intelligence, visual and auditory functions, eating, swallowing, speech, behavior, and more. Common causes of this condition include: premature infants, full-term but immature infants; congenital abnormalities; cerebral ischemia and hypoxia; brain injury to the infant during delivery, neonatal cranial brain injury or brain infection, or cerebrovascular accidents; neonatal kernicterus; exposure to teratogenic factors; long-term smoking by the pregnant woman; fetal alcohol syndrome caused by alcohol consumption during pregnancy; and drug abuse, among others. In summary, cerebral palsy in children is basically unrelated to chromosomal abnormalities. However, due to the history of consanguineous marriage, the situation is relatively complex.Advice: Due to the history of consanguineous marriage in the patient's family, it is recommended to undergo relevant genetic testing before pregnancy. If the test results are normal, attention should be paid to the following factors:
1. Pregnant woman:
(1) Actively undergo prenatal examinations;
(2) Abstain from harmful habits;
(3) Prevent viral infections, avoiding contact with cats, dogs, etc.;
(4) Avoid exposure to harmful or toxic substances.
2. During fetal birth: Fetal asphyxia and intracranial hemorrhage caused by delivery are important reasons for cerebral palsy in children, so it is necessary to prevent premature birth and difficult labor.
3. After fetal birth: Strengthen nursing care, provide reasonable feeding, and prevent intracranial infections and brain trauma.
4. If fetal abnormalities are detected in the early stages of pregnancy, pregnancy should be terminated as soon as possible.
Doctor's inquiry: