What are the characteristics of neonatal convulsion?

This is an important problem of perinatal medicine, often prompting severe, more for physical damage to the brain, commonly found in hypoxic-ischemic encephalopathy, birth trauma, intracranial hemorrhage, brain development, central nervous system infections, congenital metabolic disorders. Very few primary, leaving sequelae, high fatality rate, its incidence approximately 1.4% per cent of live births, birth within 10 days, incidence of seizures of more than 0.2%~0.8%, birth weight in newborns is less than 1500g, its incidence is 25.5%.

Neonatal seizure is different from older children, which features not typical of the big attack, and behave as amorphous and ever-changing variety of abnormal movements, various forms may alternate, attack time length, because the symptom complex, clinically, sometimes illegible. At present, by which clinical manifestations can be divided into five types:

(1) tiny attack: more other type common, to head facial performance mainly, no limb ankylosing or array generalized tonic-clonic, attack Shi movement phenomenon minor, convulsions weak and limited, can performance for respiratory suspended, and eye deflection, and eyelid TIC, and mouth lip fibrillation, and sucking swallowing, and pupil bulk large, and sometimes with exception of cry laugh, or only plant neural symptoms, sometimes is with limb of stepping car, and across step, and swimming, action.

(2) more focal sexual (walk sexual) array generalized tonic-clonic sexual convulsion: this convulsion is walk sexual of, no fixed order, attack in the array generalized tonic-clonic sexual movement quickly to from this a limb transfer to another a limb, or from this side go to another side, long time of Council focal sexual array generalized tonic-clonic movement in other parts began Qian only limited to a limb or with side of Shang lower limb.

(3) focal of generalized tonic-clonic convulsion: such seizures beginning on one side of a limb or side face, and can be extended to the side\'s other sites, no disturbance of consciousness in General, attacks can be found near the Central sulcus in limitations high peak amplitude waves on one side, and may extend to the same side near or on the side of the hemisphere. Sometimes not identified minor limitation of attack, such as the limbs on one side or a (toe) minor fibrillation or ankylosing, strange movements of the limbs, such as a pendulum-like motion of the upper limbs, pedal-like actions of the lower extremities.

(4) of ankylosing convulsion: represented as body stretched and stiff, with respiratory pause, eyes squint up, a small number of systemic onset ankylosing. To see in preterm infants, often prompting organic brain damage.

(5) of myoclonus convulsion: this model clinically rare, often prompting diffuse cerebral damage, characterized by upper limb and (or) simultaneous rapid traction of lower limb movement, electroencephalogram often no special form of exception.