Encyclopedia Symptoms / / August 12, 2017
microcephaly - a condition in which the size of a man's head is much smaller than that of other people of the same age and sex.Head size is measured as the length around the top of the head.Smaller than normal is determined by standardized graphs.
microcephaly is often because the brain originally is not growing at a normal rate.Skull growth is determined by brain growth.brain growth occurs at a time when the baby is still in utero, in infancy.
conditions that affect the growth of the brain can cause a reduction of the normal head size.These include infections, genetic disorders, and severe malnutrition.
genetic conditions that cause microcephaly:
- Cornelia de Lange syndrome;
- syndrome Cree-du-sha (cri du chat);
- Down's syndrome;
- syndrome Rubinstein-Teybi;
- Seckel syndrome;
- Lemley syndrome Smith-Opitz;
- trisomy 18;
- trisomy 21.
Other problems that can cause microcephaly:
- uncontrolled phenylketonuria (PKU) in the mother;
- methylmercury poisoning;
- congenital rubella;
- congenital toxoplasmosis;
- congenital cytomegalovirus (CMV);
- the use of certain drugs during pregnancy, especially phenytoin and alcohol.
most commonly diagnosed microcephaly immediately at birth or during routine examination of children's good.We recommend contacting your physician if parents consider the size of your baby's head is too small, or, in other words, the brain and the skull is not growing normally.
Most of the time microcephaly can be found during a routine examination.The measurements are part of the baby's head all the good children's check-ups during the first 18 months of life.Examination takes only a few seconds while the measuring tape is around the baby's head.
doctor will have to monitor patients with microcephaly a child for a long time to determine:
- What is the circumference of his head;
- if the baby's head is growing at a slower pace than his body;
- which still have symptoms.
also for parents can be useful to measure growth by the heads of their children.We recommend that parents consult a doctor if they notice that the growth of the baby's head as it seems to slow down considerably.
If the attending physician diagnosed the child has microcephaly, it should be noted in the personal medical records of the child.