Characteristics and outcomes of large artery occlusion-related stroke due to intracranial atherostenosis: An experience from a single center in Saudi Arabia.

BACKGROUND: Literature on the frequency, response to treatment, and outcomes of acute ischemic stroke (AIS) due to intracranial atherostenosis (ICAS)-related intracranial large artery occlusion (ILAO) from Saudi Arabia is scarce. The aim of this study was to identify the percentage, describe the characteristics, and observe the treatment response in patients with AIS attributed to ICAS-related ILAO. MATERIALS AND METHODS: This cross-sectional study included all adult patients from 2017-2021 who fulfilled the inclusion criteria for the diagnosis of ICAS-related AIS. Patients were dichotomized based on ILAO. Mortality and functional outcomes (FOCs) based on 90 days' dependence level were compared between the two groups. The association between ILAO and other variables was assessed using the Chi-squared test, odds ratios (OR), and 95% confidence interval (CI). RESULTS: ILAO was found in 38.7% of patients with ICAS-related AIS. Men comprised three-fourths of the cohort and were more frequent in the ILAO group. Smoking was associated with increased (P = 0.04) likelihood of ILAO. Patients with ILAO had more severe strokes (P ≤ 0.001) than patients without. Middle cerebral artery was the most common occluded vessel (52%). Functional dependence (P = 0.003, OR = 2.87, CI = 1.42-5.77), malignant transformation (P = 0.001, OR = 8.0, CI = 1.82-35.9), and mortality (P ≤ 0.001, OR = 7.67, CI = 2.40-24.5) were significantly higher among ILAO group. Patients with ILAO with unfavorable FOC were older than those who achieved better FOC (P ≤ 0.001). Thrombolysis (P = 0.02, OR = 2.50, CI = 1.15-5.41) and mechanical thrombectomy (MT) improved FOC in patients with ILAO (P = 0.04, OR = 2.33, CI = 1.10-4.92). CONCLUSION: ILAO is common in patients with ICAS-related AIS. Timely hyperacute stroke treatment can help improve the FOC of otherwise disabling stroke due to ILAO. Raising awareness of the community about stroke is needed, so that a higher number of patients can arrive at hospital within the golden hours. Further data from the region are required to recognize the efficacy of MT in ICAS-related ILAO.

Association between glycated hemoglobin and functional outcomes in patients with intracranial large artery atherosclerotic disease-related acute ischemic stroke: identifying the magic number.

Objective: This study aimed to investigate the effect of the glycated hemoglobin A1c (HbA1c) level on the functional outcome (FOC) in patients with intracranial large artery atherosclerotic disease (ICLAD)-related acute ischemic stroke (AIS). Methods: This retrospective study enrolled patients with ICLAD-related AIS who were admitted to King Fahd University Hospital between January 2017 and September 2021. Patients were divided into two groups based on the optimal cutoff HbA1c level determined using receiver operating characteristic curve analysis-those with HbA1c ≤6.9% and those with HbA1c >6.9%. Demographic and other clinical characteristics were compared between the two groups using chi-square tests. The association between HbA1c and 90-day FOC was assessed using the chi-square test and odds ratios (ORs). Multivariate analysis was performed to adjust for confounding factors. Results: A total of 140 patients were included in the analysis. A significant association was observed between the HbA1c level and FOC. Compared to patients with HbA1c ≤6.9%, patients with HbA1c >6.9% were more likely to have an unfavorable FOC [p = <0.001, OR = 2.05, 95% confidence interval (CI) = 1.33-3.14]. The association between HbA1c >6.9% and unfavorable FOC was sustained even after adjusting for confounding factors (p = 0.008) and atherosclerosis risk factors (p = 0.01). HbA1c >6.9% was also associated with higher ORs for in-hospital complications (p = 0.06, OR = 1.34, 95% CI = 1.02-1.77) and mortality (p = 0.07, OR = 1.42, 95% CI = 1.06-1.92) although these associations did not attain significant p-values. Conclusion: HbA1c >6.9% was significantly associated with unfavorable FOC in ICLAD-related AIS. However, further studies with larger sample sizes are required to verify whether HbA1c is an independent predictor of poor FOC. Nevertheless, targeting HbA1c <7% should be the goal of physicians when managing patients at high risk of ICLAD.

Prevalence and Clinico-Radiologic Spectrum of Intracranial Atherosclerotic Disease-Related Stroke: An Observation from a Single Center in Saudi Arabia.

BACKGROUND: Intracranial atherosclerotic disease (ICAD) is an important etiologic subtype of acute ischemic stroke (AIS). However, little direct evidence is available regarding ICAD-related stroke in Saudi Arabia (SA). This study aimed to identify the prevalence and describe the clinico-radiological spectrum of ICAD-related AIS in a SA cohort. METHODS: This was a hospital-based retrospective study enrolling patients with ICAD-related AIS between 2017 and 2020. The electronic charts were reviewed. The mechanisms of stroke were identified as artery-to-artery embolization (AAE), in situ thrombotic occlusion, hypoperfusion, or perforator branch occlusion. Pearson's χ 2 test was performed to calculate the P values to establish the statistical significance of factors that could correlate with the mechanisms of stroke and functional outcome. RESULTS: ICAD was found in 133 of AIS comprising 26% of total. Data from all patients were reviewed. Left ICA (25%) was the most frequently affected vessel. Territorial pattern (63.9%) was the most common infarct pattern, and AAE (44.3%) was the most common underlying mechanism. Perforator branch occlusion was more prevalent in women than in men. Malignant and hemorrhagic transformation ( P =0.00) were more prevalent in the AAE group. Left-sided vascular involvement was statistically associated with unfavorable outcomes than the right ( P =0.019). CONCLUSIONS: The prevalence of ICAD in our cohort from Western Asia did not differ from that in Southern Asia. ICA involvement was observed more frequently than previously reported. Further research from SA is required to better understand ICAD-related strokes in this region.

The efficacy of new neuronal growth factor in the healing of the sciatic nerves in rabbits.

Background and Objective: Regeneration of nervous tissue is unpredictable and an ideal growth factor to influence the healing of the injured nerves is not available. A recent study in rats had shown that a new neuronal growth factor (NNGF) was effective in the early healing of the sciatic nerves. The aim of this experimental study is to test the efficacy of NNGF in the healing of iatrogenic division of the sciatic nerves in a larger animal (rabbits). Methods: White New Zealand 20 male rabbits of 6 months of age were divided into two groups. Intramuscular ketamine and xylazine were used to anesthetize the animals. The sciatic nerves were divided using scalpel blade 15 and 10/0 Vicryl was used to repair the divided neural tissue. In the study group, 10 mg/kg body weight of NNGF was instilled on the top of the divided nerves and the wound was closed. At 4 weeks, the operated limbs were observed for any trophic skin changes. Nerve conduction studies were carried out using train-of-four-Watch SX, Organon (Ireland) Ltd., and Ireland. The rabbits were put to death humanely and the sciatic nerves were removed and delivered to the pathologist in 2% formalin. The pathologists were blinded about the two groups. Results: Electromyographic study done at 4 weeks showed in the untreated group; the mean twitches 1-T4 was 0.45 ± 0.31% and in the treated group, the average was 77.912 ± 5% (P > 0.001). Microscopic anatomy in the treated group revealed prominent healing by regeneration was evidenced by showing growth of its proximal segments into an empty endoneurial tube which was not seen in the control group. In the control group, the nerves showed no histological element of healing by regeneration. Conclusions: NNGF proves that in a larger animal at 4 weeks profoundly influenced early regeneration of experimentally created divisions of myelinated nerve tissue.

Résumé Contexte et objectif: La régénération des tissus nerveux est imprévisible et un facteur de croissance idéal pour influencer la guérison des nerfs blessés n'est pas disponible. Une étude récente chez le rat a montré qu'un nouveau facteur de croissance neuronal (NNGF) était efficace dans la guérison précoce des nerfs sciatiques. L'objectif de cette étude expérimentale est de tester l'efficacité du NNGF dans la guérison de la division iatrogène des nerfs sciatiques chez un animal plus grand (lapin). Méthodes: White New Zealand 20 lapins mâles de 6 mois ont été divisés en deux groupes. La kétamine intramusculaire et la xylazine ont été utilisées pour anesthésier les animaux. Les nerfs sciatiques ont été divisés en utilisant la lame scalpel 15 et 10/0 vicryl ont été utilisés pour réparer le tissu neural divisé. Dans le groupe d'étude, 10 mg / kg de poids corporel du NNGF ont été inculqués sur le dessus des nerfs divisés et la plaie a été fermée. À 4 semaines, les membres opérés ont été observés pour tout changement de peau trophique. Des études de conduction nerveuse ont été menées à l'aide de SX Train-of-Nat-Watch, Organon (Ireland) Ltd. et Ireland. Les lapins ont été mis à mort avec humanité et les nerfs sciatiques ont été retirés et livrés au pathologiste dans 2% de formol. Les pathologistes ont été aveuglés sur les deux groupes. Résultats: électromyographique L'étude réalisée à 4 semaines a montré dans le groupe non traité; Les contractions moyennes 1 à T4 étaient de 0,45 ± 0,31% et dans le groupe traité, la moyenne était de 77,912 ± 5% (p> 0,001). L'anatomie microscopique dans le groupe traité a révélé une guérison importante par régénération a été mise en évidence en montrant la croissance de ses segments proximaux dans un tube endoneurial vide qui n'a pas été observé dans le groupe témoin. Dans le groupe témoin, les nerfs n'ont montré aucun élément histologique de guérison par régénération. Conclusions: NNGF prouve que chez un animal plus grand à 4 semaines, a profondément influencé la régénération précoce des divisions créées expérimentalement du tissu nerveux myélinisé. Mots-clés: Facteurs de croissance, régénération nerveuse, nerfs sciatiques.

Integration of Transcriptome and Exome Genotyping Identifies Significant Variants with Autism Spectrum Disorder.

Autism is a complex disease with genetic predisposition factors. Real factors for treatment and early diagnosis are yet to be defined. This study integrated transcriptome and exome genotyping for identifying functional variants associated with autism spectrum disorder and their impact on gene expression to find significant variations. More than 1800 patients were screened, and 70 (47 male/23 female) with an average age of 7.56 ± 3.68 years fulfilled the DSM-5 criteria for autism. Analysis revealed 682 SNPs of 589 genes significantly (p < 0.001) associated with autism among the putative functional exonic variants (n = 243,345) studied. Olfactory receptor genes on chromosome 6 were significant after Bonferroni correction (α = 0.05/243345 = 2.05 × 10-7) with a high degree of linkage disequilibrium on 6p22.1 (p = 6.71 × 10-9). The differentially expressed gene analysis of autistic patients compared to controls in whole RNA sequencing identified significantly upregulated (foldchange ≥0.8 and p-value ≤ 0.05; n = 125) and downregulated (foldchange ≤-0.8 and p-value ≤ 0.05; n = 117) genes. The integration of significantly up- and downregulated genes and genes of significant SNPs identified regulatory variants (rs6657480, rs3130780, and rs1940475) associated with the up- (ITGB3BP) and downregulation (DDR1 and MMP8) of genes in autism spectrum disorder in people of Arab ancestries. The significant variants could be a biomarker of interest for identifying early autism among Arabs and helping to characterize the genes involved in the susceptibility mechanisms for autistic subjects.

Body mass index and its association with various features of migraine: A cross-sectional study from Saudi Arabia.

Introduction: Migraine is a highly prevalent condition, and prevalence of obesity is also increasing. Results of studies addressing association of body mass index (BMI) with migraine and its features are conflicting. In this cross-sectional study, we aim to assess association between BMI and various migraine features. Methods: This study was conducted in the Headache Clinic of King Fahd Hospital of University, Al Khobar, Saudi Arabia. Interviews were conducted by three consultant neurologists. Migraine was defined according to the International Headache Society and BMI was calculated as weight (kilograms)/height (m2). Results: Of total of 121 patients, 79% were female. Almost 87.6% of patients were taking prophylactic medications. Majority of patients had attack for more than 24 h (60.3%), pulsating character (81%), moderate-to-severe intensity (92.6%), associated with nausea and/or vomiting (75.2%), and photophobia/phonophobia (91.7%). About 29.8% of patients were normal weight, 28.1% were overweight, and 39.7% were obese and morbidly obese. There was insignificant association between various categories of BMI and features of migraine, that is, unilateral location (P = 0.385), pulsating character (P = 0.571), moderate-to-severe intensity (P = 0.187), nausea and/or vomiting (P = 0.582), and photophobia and/or phonophobia (P = 0.444). Conclusion: In our study, we did not find an association between BMI and various features of migraine.

RésuméIntroduction: La migraine est une maladie très répandue, et la prévalence de l'obésité est également en augmentation. Résultats des études portant sur l'association de l'indice de masse corporelle (IMC) avec la migraine et ses caractéristiques sont contradictoires. Dans cette étude transversale, nous visons à évaluer l'association entre IMC et diverses caractéristiques de la migraine. Méthodes: Cette étude a été menée à la Headache Clinic de l'hôpital King Fahd de l'Université, Al Khobar, Arabie Saoudite. Les entretiens ont été menés par trois neurologues consultants. La migraine a été définie selon l'International La Headache Society et l'IMC ont été calculés en poids (kilogrammes)/taille (m2). Résultats: Sur un total de 121 patients, 79 % étaient des femmes. Presque 87,6 % des patients prenaient des médicaments prophylactiques. La majorité des patients ont eu une attaque pendant plus de 24h (60,3%), caractère pulsatile (81%), intensité modérée à sévère (92,6 %), associée à des nausées et/ou vomissements (75,2 %) et photophobie/phonophobie (91,7 %). Environ 29,8 % des les patients avaient un poids normal, 28,1 % étaient en surpoids et 39,7 % étaient obèses et obèses morbides. Il y avait une association insignifiante entre diverses catégories d'IMC et caractéristiques de la migraine, c'est-à-dire localisation unilatérale (P = 0,385), caractère pulsatile (P = 0,571), modéré à sévère intensité (P = 0,187), nausées et/ou vomissements (P = 0,582) et photophobie et/ou phonophobie (P = 0,444). Conclusion: Dans notre étude, nous n'ont pas trouvé d'association entre l'IMC et diverses caractéristiques de la migraine. Mots-clés: Indice de masse corporelle, fréquence, migraine, obésité, gravité.

An Observational Study Comparing the Safety and Efficacy of Conventional Anticoagulation Versus New Oral Anticoagulants in the Management of Cerebral Venous Sinus Thrombosis.

Objective: To compare the safety and efficacy of conventional anticoagulants with new oral anticoagulants (NOACs) for management of cerebral venous sinus thrombosis (CVST).Methods: This was a retrospective, prospective cohort study of patients who presented with CVST to a tertiary stroke center in the Middle East from January 2012 to October 2019. Patients with a diagnosis of CVST were identified, and data were analyzed for demographic characteristics. Specific consideration was given to compare the efficacy and safety of different anticoagulation treatments.Results: A total of 36 patients were included in the final analysis, with 15 (41%) men and 21 (59%) women and a male to female ratio of 1:1.4. Most of the patients (n = 22, 61%) were Saudi. Their ages ranged between 15 and 82 years (mean ± SD age of 34.22 ± 13.16 years). Headache was the most common feature, present in 22 (61%) of the patients, followed by unilateral weakness in 15 (41%) and cranial nerve palsies in 11 (30%). The most common etiology was prothrombotic state (both hereditary and acquired thrombophilia: n = 16, 45%). Other etiologies were postpartum state/oral contraceptive pill usage in 7 (19%), infections in 7 (19%), and trauma in 3 (8%). Most of the patients (n = 24, 67%) still received conventional anticoagulation (warfarin/low molecular weight heparin), but 9 (25%) of the patients consented to start NOACs. Efficacy (as measured by clinical improvement plus rate of recanalization of previously thrombosed venous sinuses) showed no statistically significant difference, although it proved to be better tolerated, as none of the patients stopped the treatment due to adverse events and risk of major bleeding was significantly low in the NOAC group. Nine patients in the warfarin group stopped medication, while none in the NOAC group did so (P = .034).Conclusion: NOACs were found to be at least as good as conventional anticoagulation for the management of CVST. However, efficacy was almost similar, a finding that is consistent with most of the published case series and the few recently published prospective studies. Larger prospective and population-based studies are needed to clarify our preliminary results.

Recurrent Facial Palsy Due to High Jugular Bulb Dehiscence.

BACKGROUND: A high mega jugular Bulb is an enlarged and swollen upper portion of the internal jugular vein with a variation of its anatomical position among the population, mostly situated below the hypotympanum. Although most cases of jugular bulb diverticulum are asymptomatic, excessive pressure on the surrounding structures might cause various symptoms, most prominently vertigo, sensorineural hearing loss, or tinnitus. CASE REPORT: A middle-aged male who was referred to the Department of Neurology with a recurrent complaint of left-sided facial weakness associated with headache and vertigo for a period of 24 months. His symptoms were episodic, furthermore exacerbated by visiting high altitude sites. Non-resolving with conventional medical treatment. After thorough investigation, including preoperative and postoperative audiograms, neuroimaging, including computed tomography as well as magnetic resonance angiography, he was diagnosed to have right-sided superior mega jugular bulb as a causative factor. After surgical management, the patient improved significantly. At his regular follow-up in our clinic there were no exacerbations of his symptoms. CONCLUSION: Among patients who present with recurrent non-resolving facial palsy in which no apparent causative factor is identified, high jugular bulb should be suspected and investigated. Comprehensive and detailed medical history is essential for raising the suspicion for the diagnosis. Such as the case presented eliciting high altitudes as the main precipitating factor. The diagnosis is clinically elusive, commonly obscured by other common diagnoses. Surgery is recommended if antihypertensive drugs do not show improvement.

Influence of Sex Difference on Distribution of Risk Factors and Etiologic Subtypes of Acute Ischemic Stroke: Reality of Facts.

BACKGROUND AND PURPOSE: Sex-related differences have been documented in risk factors distribution, etiologic subtypes, diagnostic evaluation, offered management, and outcome of patients with acute ischemic stroke (AIS) from all over the world. Nevertheless, studies from Saudi Arabia are lacking. This study aimed to investigate the influence of sex on distribution of risk factors and etiologic subtype of AIS in patients admitted to our hospital. MATERIALS AND METHODS: Record of patients admitted to King Fahd Hospital of the University between 2010 and 2017 with ischemic stroke (IS) were reviewed. Base line characteristics, risk factors, and etiologic subtypes according to Trial of Org 10172 in Acute Stroke Treatment (TOAST) classification were compared between men and women. RESULTS: Among 453 patients with IS, 300 (66.2%) were men and 153 (33.7%) were women. The mean age of all patients was 61.5 ± 14.5 years. Women were older than men (P = 0.00). Hypertension (P = 0.00), atrial fibrillation (P = 0.00), and past history of stroke (P = 0.03) were more frequent in women compared to men. Fewer carotid Doppler studies (47.1 vs. 68.3%, P = 0.00) and echocardiogram (75.1 vs. 83%, P = 0.01) were done in women as compared to men. Cardioembolic etiologic subtype (26.1 vs. 17.7%) was found more frequently, whereas small vessel occlusive (23.5 vs. 31%) and large artery disease less (10.5 vs. 16.3%) frequently in women. CONCLUSION: Significant sex-related differences were found in risk factors and subtypes of AIS in our cohort of patients. Findings of our study are in general comparable with studies from all over the world.

Stroke literacy in the population of the Eastern Province of Saudi Arabia; immediate steps are essential to bridge the gap.

BACKGROUND AND PURPOSE: Stroke is a medical emergency that demands early recognition for time sensitive acute management. Knowledge about stroke in public has not been found satisfactory in most of the studies worldwide. Studies describing the awareness of public about recognition of stroke and its treatment from Saudi Arabia (SA) are deficient. This study aimed to assess the knowledge of general population living in the Eastern Province of SA about stroke in relation to recognition of warning signs, risk factors and available acute treatment. METHODS: A prospective, cross sectional study was conducted using a structured questionnaire distributed through an electronic web site over a period of six months. The data was analyzed with SPSS version 22.0. RESULTS: Among a total of 1,213 respondents, 62.4% were women. Three fourth identified the affected organ correctly. Psychological stress was the most commonly identified risk factor (73.5%) followed by hypertension (63.8%). More than half of the respondents (58.5%) were not aware of diabetes mellitus as a risk factor for stroke. Speech difficulty was the most commonly identified stroke warning sign (64.4%) followed by focal weakness (62.4%). More than half (59.9%) did not recognize facial asymmetry as stroke warning sign. Nearly three fourth of the participants were unaware of t-PA (73.7%) and nearest available health care center for acute stroke management (74.9%). CONCLUSION: Our survey found the stroke literacy in the population of the Eastern Province of SA as non- satisfactory and highlights the importance of taking immediate measure such as mass media campaign and hospital based activities to improve it.

Impact of depression and fatigue on relapsing remitting multiple sclerosis in Kingdom of Saudi Arabia.

OBJECTIVES: To determine relationship between fatigue, depression with the registration in multiple sclerosis (MS) society activity, and stress with the risk developing a new attack in patients with Relapsing remitting MS (RRMS) in the Kingdom of Saudi Arabia (KSA). METHODS: This was a cohort retrospective study conducted in the KSA between July 2018 and July 2019 which included a total of 465 RRMS patients. Data were collected during interviews using the Beck Depression Inventory (BDI) and Modified Fatigue Impacts Scale (MFIS). Demographic and clinical data were also collected. RESULTS: Of 465 participants, 317 expressed psychological stress before the last attack, 67 of whom developed an attack within 4 weeks, and 250 of whom developed an attack after 4 weeks. Significantly lower BDI scores were associated with registration in MS associations (p=0.003, df = 5). Significantly lower MFIS scores were associated with registration in MS associations (p=0.001, df = 5). CONCLUSION: The majority of RRMS patients have a significant fatigue and depression, and there are significant relationships between registration in the MS society and MFIS and BDI scores where patients who officially registered in MS society have lower score in MFIS and BDI. we recommend regular follow-ups with a psychologist and/or registration with MS societies.

Is non-traditional therapy for multiple sclerosis overwhelming in Saudi Arabia.

OBJECTIVE: To describe the prevalence, knowledge and attitudes about complementary and alternative medicine (CAM) use and the proportion that seek advice from their physician about CAM use. METHODS: This cross-sectional observational study was performed in multiple sclerosis (MS) clinic of King Fahd Hospital of Universityin Alkhobar, Kingdom of Saudi Arabia from January-June 2017. A total of 133 patients have completed the survey. RESULTS: The mean age of patients was 32.3+/-7.6 years and 84 (63.2%) were female. Approximately 83.5% of the patients reported the use of CAM. Among all the reported forms of CAM, vitamins were the most prevalent form, followed by cupping, special prayers and meditation. The majority of patients (62%) obtained knowledge of CAM through social media. A significant number of patients (75.6%) did not disclose the use of CAM to their physician. There was a trend for using CAM more in highly educated, older age, and female patients. The most commonly reported rationale to use CAM was overall improvement in health status. CONCLUSION: The use of CAM among Saudi patients with MS is highly prevalent, without disclosure of its use to physicians. These factors should be taken into account in the doctor-patient consultation to avoid adverse events.

Effects of pulsed low-frequency magnetic field therapy on pain intensity in patients with musculoskeletal chronic low back pain: study protocol for a randomised double-blind placebo-controlled trial.

INTRODUCTION: The aim of the present study is to investigate the effectiveness of pulsed low-frequency magnetic field (PLFMF) on the management of chronic low back pain (CLBP). METHODS AND ANALYSIS: A randomised double-blinded controlled clinical trial will be conducted, involving 200 patients with CLBP. Participants will be randomised in a 1:1 ratio to receive either active PLFMF (experimental arm) or sham treatment (control arm) using a permuted-block design which will be stratified according to three subtypes of musculoskeletal CLBP (nociceptive, peripheral neuropathic or central sanitisation). The intervention consists of three sessions/week for 6 weeks. The primary outcome is the percentage change in Numerical Rating Scale (NRS) pain at week 24 after treatment completion with respect to the baseline. Secondary outcomes include percentage NRS pain during treatment and early after treatment completion, short form 36 quality of life, Roland and Morris Disability Questionnaire; Depression Anxiety Stress Scale 21, Patient Specific Functional Scale, Global perceived effect of condition change, Pittsburgh Sleep Quality Index and Modified Fatigue Impact Scale. Measures will be taken at baseline, 3 and 6 weeks during the intervention and 6, 12 and 24 weeks after completing the intervention. Adverse events between arms will be evaluated. Data will be analysed on an intention-to-treat basis. ETHICS AND DISSEMINATION: The study is funded by Imam Abdulrahman Bin Faisal University (IAU). It has been approved by the institutional review board of IAU (IRB- 2017-03-129). The study will be conducted at King Fahd Hospital of the University and will be monitored by the Hospital monitoring office for research and research ethics. The trial is scheduled to begin in September 2018. Results obtained will be presented in international conferences and will be published in peer-reviewed journals. TRIAL REGISTRATION NUMBER: ACTRN12618000921280, prospectively.

Etiologic and Clinical Features of Cerebral Venous Sinus Thrombosis in Saudi Arabia.

OBJECTIVE: Our study aims to evaluate the etiologic and clinical features of cerebral venous sinus thrombosis (CVST) in Saudi Arabia, and secondarily whether gender plays a role in CVST. MATERIALS AND METHODS: Data were collected retrospectively from the stroke registry during the period from January 2008 to April 2018, and the patients with the diagnosis of CVST were identified, and data were analyzed for any gender-specific differences in clinical presentation and etiology of cerebral venous thrombosis. RESULTS: There were 15 females while 11 males with a female:male ratio of 1.4:1. The mean age was 29.4± standard deviation 8.9 with the age range of 15-49. Headache was the most common and usually the first presenting symptoms present in 65% followed by hemiparesis and cranial nerve palsies. The first neurological examination was normal in 9/26 (34.6%) of the patients, while the common abnormality was cranial nerve palsies. Infections and trauma played an important part in risk factor analysis of our patient after the pregnancy- and hormone-related conditions. Some significant differences between the clinical presentation and risk factors among males and females were noted as age at presentation was higher in females while trauma and infections were common in male patients, although the involvement of the sinuses and response to treatment did not prove to be statistically significant. CONCLUSION: The results of this study were similar to the available literature with few differences. The relatively higher proportion of males in our study can be explained partly with more cases of traumatic CVST. Some important differences were noted between the risk factors and clinical presentation among genders. Large-scale prospective studies are needed to further clarify these differences.

Nonadherence to Antiepileptic Medications: Still a Major Issue to be Addressed in the Management of Epilepsy.

CONTEXT: Medication nonadherence is a significant barrier in achieving seizure freedom in patients with epilepsy. There is a deficiency of data about the reasons for nonadherence in Saudi population. AIMS: The aim of this study is to prove the existence of nonadherence to antiepileptic drugs (AEDs) in patients with epilepsy and identify the responsible factors. SETTING AND DESIGN: This is a prospective, cross-sectional study carried in the Department of Neurology at King Fahd Hospital of the University affiliated with Imam Abdulrahman Bin Faisal University. SUBJECTS AND METHODS: Patients of all ages diagnosed to have epilepsy as mentioned in their medical record and taking antiepileptic medications were interviewed using a questionnaire. STATISTICAL ANALYSIS USED: Statistical analysis was performed using IBM Statistical Package for the Social Sciences version 21 (IBM Corp., Armonk, NY, USA). Statistical significance was defined as two-tailed with a P ≤ 0.05. RESULTS: Among 152 participants, 52.6% were male and 47.4% were female. Mean age of the patients was 28 ± 14.3 (mean ± standard deviation) years. Of 152 patients, 48.7% were found to be nonadherent to their AED therapy. The most commonly identified factor was forgetfulness. Nonadherence was significantly associated with poor seizure control (P = 0.002). CONCLUSION: Nonadherence to the AED is common among patients with epilepsy and affects seizure control adversely.

Clinical Presentations and Phenotypic Spectrum of Multiple Sclerosis at a University Hospital in Saudi Arabia.

BACKGROUND AND PURPOSE: The objective of this study was to determine the frequencies of different clinical presentations and the phenotypic spectrum of multiple sclerosis (MS). METHODS: This cross-sectional study was performed in the Neurology Department of King Fahd Hospital of University Alkhobar in the Kingdom of Saudi Arabia (KSA). Data of 190 MS patients who fulfilled the McDonald criteria were retrieved from medical records and analyzed. RESULTS: The age at disease onset was 26.27±8.2 years (mean±SD) and disease duration was 6.38±5.10 years. The male-to-female ratio was 1:1.6. Optic neuritis and myelitis were the most-frequent first clinical presentations. Sensory (73.1%), motor (61%), and visual (58.4%) symptoms were the most-frequent established clinical symptoms. Relapsing-remitting multiple sclerosis (RRMS) was present in 75% of the cases. Supratentorial T2-weighted white-matter lesions and deep-gray-matter or juxtacortical lesions were the most-frequent magnetic resonance imaging (MRI) lesions, comprising 28% and 23.7% of all MRI lesions observed in 93.6% and 79.4% of the cases, respectively. The scores on the Expanded Disability Status Scale were within the range of 1.0-5.5 in 82.1% of the patients. There were 145 (76.3%) patients taking interferon ß therapy. CONCLUSIONS: MS presenting in the hospital setting is more common in KSA than reported previously, and the number of diagnosed cases in increasing. It is therefore an emerging and disabling neurological illness in KSA with clinical characteristics not dissimilar to those in other middle eastern countries. A decrease in the frequency of patients with secondary progressive multiple sclerosis (SPMS) indicates either that more new cases of RRMS are being diagnosed or that adequate treatments of RRMS are preventing the evolution to SPMS. Further larger and population-wide epidemiological and clinical studies with the long-term follow-up of MS patients are required to better assess the clinical spectrum of MS in KSA.

Relationship Between Glycated Haemoglobin and Carotid Atherosclerotic Disease Among Patients with Acute Ischaemic Stroke.

OBJECTIVES: This study aimed to determine the relationship between glycaemic control and carotid atherosclerotic disease among patients with acute ischaemic stroke (AIS). METHODS: This retrospective cross-sectional study took place in the Neurology Department of King Fahad Hospital of University, Khobar, Saudi Arabia, from April to October 2017. Data were collected from the medical records of 244 patients with a diagnosis of AIS confirmed by computed tomography. Doppler ultrasounds of the carotid artery were performed to determine the presence of increased carotid intima media thickness (CIMT) and plaques. RESULTS: Significantly higher mean glycated haemoglobin (HbA1c) levels were noted in cases with high CIMT values (P = 0.002), but not in cases with carotid plaques (P = 0.360). In addition, there was a significant association between diabetes mellitus (DM) and high CIMT (P = 0.045), but not with carotid plaques (P = 0.075). Finally, while dyslipidaemia and age were independently correlated with high CIMT values (P = 0.034 and <0.001, respectively) and carotid plaques (P <0.001 each), no independent relationships were noted in terms of gender and other risk factors like DM, hypertension and smoking (P >0.050 each). CONCLUSION: High HbA1c levels were associated with high CIMT values, but not with carotid plaques. Therefore, HbA1c levels may be useful as an indirect marker of the initial stages of carotid artery atherosclerosis.

New onset epilepsy in the elderly: clinical, radiological and electroencephalographic features and treatment responses.

OBJECTIVE: To evaluate new onset epilepsy characteristics, etiology, radiological and electroencephalographic features and to document treatment response in the elderly. METHODS: This was a retrospective study carried out in King Fahd Medical City, Riyadh, Kingdom of Saudi Arabia, from 2010 to 2013. Medical records were searched to recruit patients. Hundred and nineteen patients were enrolled who fulfill the inclusion criteria. Clinical data with respect to seizure semiology, etiology, electroencephalographic findings, radiological findings, co-morbidities, and anti-epileptic drug (AED) therapy were assessed. RESULTS: Cerebrovascular disease was the most common etiology, followed by occult cerebrovascular disease (oCVD). Focal onset seizures were the most common clinical presentation in this group of cohort. Electroencephalogram (EEG) showed generalized slowing in majority of patients (45.5%), with 21.8% interictal epileptiform activity. Patients required lower doses of AEDs to control seizures, gain better seizure control. Common co-morbidities were hypertension and diabetes mellitus. CONCLUSION: Patients presenting with LOE, should have search for any other cerebrovascular risk factors. Further research is needed to determine the prevalence of oCVD in LOE, and to investigate whether addressing cerebrovascular risk factors in this cohort of patients can reduce the incidence of stroke.