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Postural orthostatic tachycardia syndrome (POTS) is a condition characterized by an abnormally large increase in heart rate upon sitting up or standing. [1] POTS is a disorder of the autonomic nervous system that can lead to a variety of symptoms, [10] including lightheadedness, brain fog, blurred vision, weakness, fatigue, headaches, heart palpitations, exercise intolerance, nausea ...
Most parents report that the onset of autism features appear within the first or second year of life. [ 11 ] [ 12 ] This course of development is fairly gradual, in that parents typically report concerns in development over the first two years of life and diagnosis can be made around 3–4 years of age. [ 9 ]
[4] [1] Patients with JS may meet some or all criteria for diagnosis with autism spectrum disorder due to many shared developmental symptoms. [3] Initial clinical findings may include macrocephaly, hypotonia, epilepsy, ophthalmologic abnormalities, and dysmorphic facial features.
Associated symptoms can include but are not limited to palpitations, near-syncope and syncope, heat intolerance, and difficulty managing blood pressure and heart rate. [63] One study published in 2013 showed that patients with EDS were more likely to also be diagnosed with postural orthostatic tachycardia syndrome, more commonly known as POTS. [63]
The average lifespan after the onset of symptoms in patients with MSA is 6–10 years. [4] Approximately 60% of patients require a wheelchair within five years of onset of the motor symptoms, and few patients survive beyond 12 years. [4] The disease progresses without remission at a variable rate.
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.
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The most striking sign of Timothy syndrome type 1 is the co-occurrence of both syndactyly (about 0.03% of births) and long QT syndrome (1% per year) in a single patient. . Other common symptoms include cardiac arrhythmia (94%), heart malformations (59%), and autism or an autism spectrum disorder (80% who survive long enough for evaluati