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Hypotonia is a state of low muscle tone [1] (the amount of tension or resistance to stretch in a muscle), often involving reduced muscle strength. Hypotonia is not a specific medical disorder, but a potential manifestation of many different diseases and disorders that affect motor nerve control by the brain or muscle strength.
Mild to severe intellectual or developmental disability is present in the majority of patients. [7] Epilepsy is present in the majority of cases, with approximately 80-98% of patients affected by seizures. [8] Truncal hypotonia and clumsy or ataxic gait are typical. [5] Behavioral and sleep problems are also common.
The symptoms of CDD include early infantile onset refractory epilepsy; hypotonia; developmental, intellectual, and motor disabilities, with little or no speech; and cortical visual impairment. [1] Patients usually present first with seizures within the first months of life, followed by infantile spasms which progress to epileptic seizures that ...
The weakness is indicated as hypotonia, or lack of muscle tone, which can make an infant seem unstable. [1] [5] Eventually, most patients develop joint contractures or fixed joint deformities. [6] Children may be slow with their motor skills; such as rolling over, sitting up or walking, or may not even reach these milestones of life. Some of ...
The disorder may be accompanied by autism, [1] mild intellectual disability, delayed motor, cognitive, and social development, hypotonia (low muscle tone), and speech impairments. Children with Sotos syndrome tend to be large at birth and are often taller, heavier, and have relatively large skulls ( macrocephaly ) than is normal for their age.
Although neurological disorders do not occur, temporary symptoms of benign and familial macrocephaly include: developmental delay, epilepsy, and mild hypotonia. [ 10 ] Neurodevelopment is assessed for all cases and suspected cases of macrocephaly to determine whether and what treatments may be needed, and whether any other syndrome/s may be ...
Mild to moderate intellectual disability and mild to severe developmental delay are often associated with Kabuki syndrome. [3] [4] [6] Infants and young children often experience difficulties relating to hypotonia, feeding issues/failure to thrive, infections, surgical repair of heart and palate defects and developmental delays. [citation needed]
Multiple congenital anomalies-hypotonia-seizures syndrome is a rare multi-systemic genetic disorder which is characterized by developmental delay, seizures, hypotonia and heart, urinary, and gastrointestinal abnormalities.