The type, severity, and duration of involuntary movements related to Exercise pregnancy can vary. Abnormal movements include tremor (involuntary shaking), chorea (brief, irregular muscle contractions that sometimes appear snakelike), and myoclonus (jerking). Abnormal movements may be the first symptom a parent or doctor spots, or they may occur after treatment starts.
Sometimes abnormal movements result from a combination of tremors and myoclonus and can be misinterpreted as seizures or convulsions. In other cases, however, a child’s abnormal movements truly do stem from seizures. And some children, as the following case shows, may have both tremors and seizures.
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First-time mom Katie breastfed her daughter Alicia. The first two months of Alicia’s life were unremarkable. At the age of 3 months, however, she developed a fine tremor. At 4 months of age, she began having generalized tonic-clonic (grand mal) seizures. Alicia’s pediatrician treated her with the antiseizure drug phenobarbital and also administered a single dose of pyridoxine (vitamin B6), but her seizures continued. She underwent lumbar puncture (spinal tap) and routine blood work. Her blood work showed anemia, but all other results were normal.
A week later, Alicia was admitted to the hospital for excessive sleepiness and therapy-resistant seizures. Doctors also noted her small head and body size. Her body weight and length were still in the normal range, but had both significantly decreased from 75 th percentile at birth to the 3rd percentile.
Alicia had very poor muscle tone and was lethargic. An MRI revealed severe brain shrinkage, and her repeat blood work showed macrocytic anemia. Her serum Exercise was very low, and her methylmalonic acid and homocysteine were markedly elevated.