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A neonatal seizure is a seizure in a baby younger than age 4-weeks that is identifiable by an electrical recording of the brain. [1] It is an occurrence of abnormal, paroxysmal, and persistent ictal rhythm with an amplitude of 2 microvolts in the electroencephalogram,. [2]
Neonatal encephalopathy (NE), previously known as neonatal hypoxic-ischemic encephalopathy (neonatal HIE or NHIE), is defined as a encephalopathy syndrome with signs and symptoms of abnormal neurological function, in the first few days of life in an infant born after 35 weeks of gestation.
Benign familial neonatal seizures (BFNS), also referred to as benign familial neonatal epilepsy (BFNE), is a rare autosomal dominant inherited form of seizures. This condition manifests in newborns as brief and frequent episodes of tonic-clonic seizures with asymptomatic periods in between. [ 2 ]
Eclampsia is a disorder of pregnancy characterized by seizures in the setting of pre-eclampsia. [17] Most women have premonitory signs/symptoms in the hours before the initial seizure. Typically the woman develops hypertension before the onset of a convulsion (seizure). [18] Other signs and symptoms include: [19]
Sometimes the convulsion can be caused by genetic defects or brain tumors. [1] Convulsions can also occur when the blood sugar is too low or there is a deficiency of vitamin B6 (pyridoxine). The pathophysiology of convulsion remains ambiguous. [5] Convulsions are often caused by epileptic seizures, febrile seizures, non-epileptic seizures, or ...
Focal seizures affect a specific area of the brain, not both sides. [13] It may turn into a generalized seizure if the seizure spreads through the brain. [3] [13] [8] Consciousness may or may not be impaired. [3] [5] The signs and symptoms of these seizures depends on the location of the brain that is affected. Focal seizures usually consist of ...
In general, none of the signs of pre-eclampsia are specific, and even convulsions in pregnancy are more likely to have causes other than eclampsia in modern practice. [23] Diagnosis depends on finding a coincidence of several pre-eclamptic features, the final proof being their regression within the days and weeks after delivery. [13]
Signs and symptoms are also applied to physiological states outside the context of disease, as for example when referring to the signs and symptoms of pregnancy, or the symptoms of dehydration. Sometimes a disease may be present without showing any signs or symptoms when it is known as being asymptomatic. [13]