Children with Attention-Deficit/Hyperactivity Disorder (ADHD) are typically treated with two types of medications: stimulants and non-stimulants. These medications work in different ways to treat ADHD symptoms, but we do not fully understand the brain mechanisms underlying the medications' effects. This study will use MRI scanning to look at changes in…
This study plans to learn more about a device called the Cefaly and if it is effective for treating migraine attacks. This device is approved by the Food and Drug Administration(FDA) for the prevention of episodic migraines, but clinical data has not yet been collected on its effectiveness in treating migraine attacks.
This study is for patients who have severe migraine headaches that might be a result of a hole in the heart wall called a Patent Foreman Ovale, or PFO. It is known that as many as 40% of patients with migraine headaches also have a PFO. It is not well understood how the two are related, or how having a hole in the heart wall could cause headaches. In this…
This study plans to learn more about a device called the Cefaly and if it is effective for treating migraine attacks. This device is approved by the Food and Drug Administration (FDA) for the prevention of episodic migraines, but clinical data has not yet been collected on its effectiveness in treating migraine attacks. The Cefaly device works by generating…
The purpose of this study is to find out how doctors describe hepatic encephalopathy episodes in patients medical records in the course of their regular practice. The aim of the study is simply to collect information from their medical records about how their episodes of overt hepatic encephalopathy are described. There is nothing that will be required of…
The purpose of this study is to compare the time to onset of an episode of overt HE, in subjects with previously demonstrated overt HE after treatment with rifaximin 550 mg BID and lactulose, or rifaximin 550 mg BID. Subjects will be screened to confirm eligibility into the study. Once confirmed, subjects will begin the treatment phase and will be randomly…
In this study, we are trying to learn more about how stimulant medication produces an improvement in emotional lability (frequent mood changes and excessive emotional reactions) in patients with Attention Deficit Hyperactivity Disorder (ADHD.) Although ADHD is primarily associated with inattention, hyperactivity, and impulsivity, emotional ability plays a…