Clinical characteristics of multiple sclerosis in Lebanon.

The epidemiologic, clinical, radiological and laboratory characterization of multiple sclerosis (MS) is very well documented in Caucasian and Japanese populations, but very little is known about MS in the Arab world. Such knowledge is becoming of paramount importance, with the recent advances in therapies, MRI techniques and other diagnostic procedures. We report a cohort of Lebanese MS patients, including details of their clinical and laboratory characteristics. The medical records of 202 patients fulfilling the Mc Donald's diagnostic criteria, and followed in our tertiary care center were reviewed. This cohort is highly representative of the disease in Lebanon where the number of MS patients is estimated to be between 1200 and 1700. The peak age of onset of MS in our cohort was in the third decade with 62.4% of patients developing their first symptoms between 20 and 39 years. The female/male ratio was 1.8/1.0. A positive family history for MS was present in 5% of patients. The most frequent presenting symptoms were brainstem-cerebellar (46.2%) followed by sensory (42.5%), motor (33.9%) and visual (29.6%). Of the total number of patients, 85.1% had relapsing remitting MS at onset, and 7.9% primary progressive MS. Benign MS defined as EDSS<=2.0 after 10 years from onset was present in 20% of patients. The mean time from onset to secondary progressive MS was around 9 years. Visual, brainstem, and somatosensory evoked potentials were abnormal in 65.6%, 27.8%, and 50.7% of patients tested respectively. Cerebrospinal fluid showed pleocytosis in 32.6%, increased IgG synthesis in 45.2%, positive oligoclonal bands in 40%, and elevated protein in 34% of patients tested. Although some of the clinical characteristics of our MS population were different compared to western series, the natural history of the disease was similar.

The prevalence of hypertension and its association with other cardiovascular disease risk factors in a representative sample of the Lebanese population.

Hypertension is a well-known major risk factor for cardiovascular diseases. This study has been designed to assess the prevalence of hypertension, its co-occurrence with other cardiovascular risk factors and its association with cardiovascular diseases in a representative sample of Lebanese population. A pretested questionnaire was administered to 2125 adults aged equal or above 30 years old from all regions in Lebanon and proportionate with the respective population density. Data revealed that 23.1% of the respondents admitted being hypertensive, with no statistically significant difference between male and female patients. Prevalence of hypertension increased with age (P < 0.01) and hypertension tended to occur more in the less educated and the unemployed (P < 0.01). Only 45.7% of hypertensive patients followed a low fat diet while 14.7% exercised daily. The prevalence of hypertension increased significantly with an increase in body mass index particularly in female patients. Among the hypertensive respondents, 23.9% were diabetic, 38.1% were hyperlipidaemic and 9.1% were both diabetic and hyperlipidaemic. Co-occurrence of hypertension with diabetes, hyperlipidaemia or both was more common in female patients compared to male patients. In addition, stroke, myocardial infarction (MI) and atherothrombosis occurred in hypertensive respondents at rates of 2.4, 4.3 and 9.5%, respectively. Hypertensive female patients reported more stroke and atherothrombotic episodes compared to male patients, whereas hypertensive male patients had more MIs. Based on these results it is very important to address the issue of lifestyle modification for the prevention and treatment of hypertension and awareness campaigns should stress the fact that cardiovascular diseases are not only restricted to men.