To assess the extent of atherothrombosis and the use of the ankle-brachial index (ABI) in populations from the Middle East, we conducted a multicenter study similar to AGATHA (a Global Atherothrombosis Assessment), AGATHA-ME, which included 1341 patients from 18 centers from 5 countries (United Arab Emirates, Kuwait, Qatar, Bahrain, and Oman). Patients were assigned to 2 groups: the with-disease and at-risk groups. Abnormal ABI (< or =0.9) was seen in 31.5% of at-risk patients and 28.2% of with-disease patients. Patients with peripheral arterial disease had the highest frequency of abnormal ABI (77.6%), with 97.8 negative predictive value. The AGATHA-ME study confirms that atherothrombosis disease often occurs at more than 1 site. The ABI is related to the risk factor profile and to the site and extent of atherothrombosis. Gender and diabetes mellitus are associated with the worst parameters.
RationaleEpilepsy is one of the most prevalent neurologic conditions. It is estimated to affect 70 million people worldwide. Epilepsy is an important cause of disability and mortality. It is associated with social stigma and significant economic costs. Although epilepsy is a disease with a worldwide distribution, its prevalence varies between different countries. Very little is known about the epidemiology of epilepsy in Qatar. Qatar's population is a mixture of native citizens and immigrants. We aim at describing the features of epilepsy in Qatar as such information is virtually lacking from the current literature.MethodsA database was created in 2014 to summarize information retrospectively collected on patients with epilepsy seen through the national health system (HMC) adult neurology clinic. For each subject, in addition to the typical demographic variables, we identified the age at onset, seizure types, epilepsy syndrome, etiology, treatment and outcome. Brain imaging and EEG results were also tabulated. All these variables were analyzed using the statistical package for social science (IBM-SPSS, version 20).ResultsOf 504 patients included in the database, 467 with sufficient information were analyzed. Sixty percent were men. The mean age at the last clinic visit was 35. Native Qataris represented 38.5%, Asian subjects 33%, and Middle Eastern/North African (MENA) origin accounted for 25% of the studied population. Generalized tonic-clonic seizures were the most common seizure type, noted in 89% of subjects. Epilepsy was classified as focal in 65.5% of the cases, and generalized in 23%. EEGs were abnormal in 55.5 %, showing epileptiform discharges in 49% of subjects. Imaging studies revealed epileptogenic pathologies in 40% of reports. Common causes of epilepsy were: vascular (11%), hippocampal sclerosis (8%), infectious (6%) and trauma (6%). Sixty six percent of patients were receiving a single antiepileptic drug, and 53% were seizure free at the last follow-up. Overall, the most commonly prescribed drug was Leviteracetam (41%) followed by Valproic Acid (25%) and Carbamazepine (22%). On current therapy, 54% of patients were seizure-free, 41% had a partial response and five percent were refractory. When the patients were divided by geographical background, some differences were noted. Remote infections caused the epilepsy in 15% of Asian patients (with neurocysticercosis accounting for 10%), but only in 1% of Qatari and 3% of MENA subjects (with no reported neurocysticercosis) (p
Background. Extrapontine myelinolysis (EPM) has been well described in the presence of rapid correction of hyponatremia. It is seldom reported with adrenal insufficiency. We report a unique case where a patient developed EPM as a result of adrenal insufficiency where the brain MRI revealed symmetrical lesion in the basal ganglia with pallidal sparing. Case Report. A 30-year-old gentleman with panhypopituitarism developed adrenal crisis, hyponatremia, and hyponatremic encephalopathy. Seven days after the rapid correction of hyponatremia, he developed parkinsonism and neuropsychiatric symptoms. MRI showed extrapontine myelinolysis without central pontine myelinolysis. Conclusion. Extrapontine myelinolysis without central pontine myelinolysis is rare and should raise a concern of associated adrenal insufficiency in the right clinical setting. Rapid correction of hyponatremia particularly in steroid-deficient states should be avoided as it can predispose to extrapontine myelinolysis. Magnetic resonance imaging is very helpful in supporting the diagnosis of EPM.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.