Utility of Various Activation Procedures in Provoking Ictal and Interictal Patterns, during Routine Electroencephalogram (rEEG) Recording.

BACKGROUND: Activation procedures (APs) are adopted during routine electroencephalography (rEEG) to provoke interictal epileptiform abnormalities (EAs). This study aimed to observe interictal and ictal (EAs) of different EEG patterns, provoked by various APs. METHODOLOGY: This cross-sectional study was performed in the neurology department of King Fahd hospital of university, Saudi Arabia. The EEGs and medical records of patients who presented for EEG recordings were screened initially, then 146 EEGs provoked EAs due to utilization of APs, were included for analysis. RESULTS: Among all EEGs with provoked EAs, Non-rapid eye movement sleep (NREM) provoked EAs in 93 (63.7%) patients with following patterns, focal spike wave discharges (FSWDs) 45 (P= 0.01), focal spike wave discharges with bilateral synchrony (FSWDBS) 27 (P=0.03) and generalized spike wave discharges (GSWDs) 46 (P=0.01). Intermittent photic stimulation (IPS) most significantly provoked FSWDs in 07 patient (P =0.01) and GSWDs in 30 patients (P=<0.001) 7 patients (P = 0.01) and GSWDs in 30 patients (P < 0.001). Hyperventilation (HV) was associated with a higher occurrence of GSWDs in 37 patients (P =0.01). Female sex 7 (P = 0.02), provoked GSWDs 3 (P = 0.03), NREM sleep 8 (P = 0.04), prolonged EEG record 3 (P = 0.02), clinical events during recording 5 (P ≤ 0.01), diagnosis of genetic 05 (P = 0.03), and immune-mediated epilepsies 2 (P = 0.001) were associated with the provocation of ictal EAs; however, in multiple logistic regression analysis, no statistically significant association of these variables (P ≥ 0.05 each) was noted. CONCLUSION: The provocation of EAs in rEEG with different APs varies according to circumstances, including seizure types, epilepsy etiology, and the type of AP applied. These clinical and procedural parameters affect the diagnostic yield of rEEG and need careful consideration during rEEG recordings. APs adopted during rEEG recording can induce FSWDs, FSWDBS, and GSWDs in the form of either interictal or ictal EAs in various etiologies of epilepsy. Ictal EAs may appear in the form of GSWDs, during NREM sleep, in prolonged EEG records; however, their independent association needs to be evaluated in larger sample studies. Further, prospective cohort studies with adequate sample sizes are warranted.

Résumé Contexte:Des procédures d'activation (AP) sont adoptées lors d'une électroencéphalographie de routine (rEEG) pour provoquer des anomalies épileptiformes (EA) intercritiques. Cette étude visait à observer les inter-critiques et critiques (EA) de différents modèles EEG, provoqués par divers PA.Méthodes:Cette étude transversale a été réalisée dans le département de neurologie de l'hôpital universitaire King Fahd de Khobar, en Arabie Saoudite. Les EEG et les dossiers médicaux des patients qui se sont présentés pour des enregistrements EEG ont été initialement examinés, puis 146 EEG avec des EA provoqués lors de l'utilisation des AP ont été inclus pour analyse.Résultats:Parmi tous les EEG avec des AE provoqués, le sommeil à mouvements oculaires non rapides (NREM) a provoqué des EA chez 93 (63,7 %) patients avec les schémas suivants : décharges d'ondes de pointe focales (FSWD) 45 ( P = 0,01), onde de pointe focale avec bilatéral synchronisation (FSWBS) 27 ( P = 0,03) et décharges d'ondes de pointe généralisées (GSWD) 46 ( P = 0,01). La stimulation photique intermittente (IPS) a provoqué de manière plus significative des FSWD chez 07 patients ( P = 0,01) et des GSWD chez 30 patients ( P = < 0,001) 7 patients ( P = 0,01) et des GSWD chez 30 patients ( P < 0,001). L'hyperventilation (HV) était associée à une fréquence plus élevée de GSWD chez 37 patients ( P = 0,01). Sexe féminin 07 ( P = 0,02), GSWD provoqués 03 ( P = 0,03), sommeil NREM 08 ( P = 0,04), enregistrement EEG prolongé 03 ( P = 0,02), événements cliniques lors de l'enregistrement 05 ( P = < 0,01), diagnostic des épilepsies génétiques 05 ( P = 0,03) et des épilepsies à médiation immunitaire 02 ( P = 0,001) étaient associées à la provocation d'EA critiques, cependant, dans l'analyse de régression logistique multiple, aucune association statistiquement significative de ces variables ( P = > 0,05 chacune) était noté.Conclusion:La provocation d'EA dans l'EEGr avec différents AP varie en fonction des circonstances, notamment des types de crises, de l'étiologie de l'épilepsie et du type d'AP appliqué. Ces paramètres cliniques et procéduraux affectent le rendement diagnostique du rEEG et doivent être soigneusement pris en compte lors des enregistrements rEEG. Les AP adoptés lors de l'enregistrement rEEG peuvent induire des FSWD, des FSWBS et des GSWD sous la forme d'EA inter-critiques ou critiques dans diverses étiologies de l'épilepsie. Les EA critiques peuvent apparaître sous forme de GSWD, pendant le sommeil NREM, dans les enregistrements EEG prolongés; cependant, leur association indépendante doit être évaluée dans des études sur un échantillon plus large. De plus, des études de cohortes prospectives avec des échantillons de taille adéquate sont justifiées.

The Relative Impact of Clinical and Investigational Factors to Predict the Outcome in Stroke Patients.

OBJECTIVE: As stroke is still considered a significant cause of mortality and morbidity, it is crucial to find the factors affecting the outcome in these patients. We aimed to interpret the various clinical and investigational parameters and establish their association with the outcome in stroke patients. MATERIALS AND METHODS: This is a retrospective, cross-sectional study, conducted in the Department of Neurology between June 2019 to November 2021. The study involved the review and analysis of medical records pertaining to 264 patients, admitted with the diagnosis of stroke. Various clinical, radiological, and electroencephalographic (EEG) patterns in stroke patients were analyzed and their association with outcome was established. The association between the studied variables was performed by the logistic regression (LR) and presented as odds ratio (OR) and 95% confidence interval (CI). RESULTS: The study sample consisted of 264 patients. Males comprised 165 (62.5%) with the mean participant age of 57.17 ± 18.7 3 years (range: 18-94). Patients younger than 50 years had a better likelihood of a good outcome in comparison to patients older than 50. The admission location was the most significant factor in predicting the outcome ( P = 0.00) in favor of inpatient department and outpatient department (OPD), in contrast to patients admitted directly to intensive care unit (ICU). Normal EEG was associated with good outcome ( P = 0.04; OR, 3.3; CI, 1.01-10.88) even after adjustment of the confounders, whereas patients having marked EEG slowing had a poor outcome ( P = 0.05; OR, 2.4; CI, 0.65-8.79). Among the clinical parameters, hemiparesis ( P = 0.03), trauma ( P = 0.01), generalized tonic-clonic seizures (GTC) ( P = 0.00), and National Institutes of Health Stroke Scale of more than 4 were more likely associated with a poor outcome as well as the presence of intracranial hemorrhage (ICH) or infarction in the cortical and cortical/subcortical locations were associated with poor outcomes. After adjustment of confounders, the factors found to have prognostic significance in favor of good outcomes were inpatients or OPD referrals and normal EEG while direct admission to ICU, marked slowing on EEG, and presence of ICH were found to be associated with poor outcome. CONCLUSION: Certain patterns are predictive of good or worse outcomes in stroke patients. Early identification of these factors can lead to early intervention, which in turn might help in a better outcome. The results of the study, therefore, have some prognostic significance.

Résumé Objectif:Étant donné que l'AVC est toujours considéré comme une cause importante de mortalité et de morbidité, il est crucial de trouver les facteurs qui influent sur le résultat dansces patients. Notre objectif était d'interpréter les différents paramètres cliniques et expérimentaux et d'établir leur association avec le résultat de l'AVC patient. Matériaux et méthodes: Il s'agit d'une étude transversale rétrospective, réalisée au Département de neurologie à partir de juin 2019 à novembre 2021 et comprenait l'examen et l'analyse des dossiers médicaux de 264 patients admis avec un diagnostic d'AVC. Divers profils cliniques, radiologiques et électroencéphalographiques (EEG) chez les patients victimes d'un AVC ont été analysés et leur association avec les résultats a été créé. L'association entre les variables étudiées a été réalisée par régression logistique (LR) et présentée sous forme de rapport de cotes (RC) et intervalle de confiance (IC) à 95 %.Résultats:L'échantillon de l'étude comprenait 264 patients. Les hommes représentaient 165 (62,5 %) avec le participant moyen âge de 57,17 ± 18,7 3 ans (intervalle : 18­94). Les patients de moins de 50 ans avaient une meilleure probabilité d'obtenir un bon résultat par rapport aux patients Le lieu d'admission était le facteur le plus important dans la prédiction du résultat (P = 0,00) en faveur du service d'hospitalisation et le service ambulatoire (OPD), contrairement aux patients admis directement à l'unité de soins intensifs (USI). Un EEG normal était associé à un bon résultat (P = 0,04; RC, 3,3; IC, 1,01-10,88) même après ajustement des facteurs de confusion, alors que les patients ayant marqué un ralentissement de l'EEG avaient un faible plus de 50 ans. résultat (P = 0,05; RC, 2,4; IC, 0,65-8,79). Parmi les paramètres cliniques, hémiparésie (P = 0,03), traumatisme (P = 0,01), tonico-clonique généralisé les convulsions (GTC) (P = 0,00) et l'échelle des accidents vasculaires cérébraux des National Institutes of Health de plus de 4 étaient plus susceptibles d'être associés à un mauvais résultat comme ainsi que la présence d'hémorragie intracrânienne (ICH) ou d'infarctus dans les emplacements corticaux et corticaux/sous-corticaux étaient associés à une Résultats. Après ajustement des facteurs de confusion, les facteurs ayant une signification pronostique en faveur de bons résultats étaient les patients hospitalisés ou l'OPD les renvois et l'EEG normal pendant l'admission directe à l'USI, le ralentissement marqué de l'EEG et la présence de PCI se sont avérés être associés à une mauvaise résultat.Conclusion:Certains modèles sont prédictifs de résultats bons ou pires chez les patients victimes d'un AVC. L'identification précoce de ces facteurs peut conduire à une intervention précoce, ce qui pourrait à son tour aider à obtenir de meilleurs résultats. Les résultats de l'étude ont donc une certaine signification pronostique.

Characteristics of Stroke-related Seizures and their Predictive Factors: A Tertiary Care Center Experience.

BACKGROUND AND PURPOSE: Various risk factors have been described in the literature that increase the risk of seizures associated with stroke. This study was aimed to determine the occurrence rate of poststroke seizures (PSSs) and the associated risk factors in Arab population. MATERIALS AND METHODS: Study included all stroke patients aged >18 years with a minimum follow-up of 24 months following stroke to identify seizure occurrence. Patient's hospital records for all admissions and clinic visits were reviewed. Seizures were classified into early PSS if they occur within 1 week of stroke, and late PSS if they occur after 1 week of stroke. RESULTS: Out of 594 patients, 380 were males. Seizure occurrence was higher in anterior circulation infarctions (94.8%, P < 0.05), cortical location (80.5%, P < 0.05), large artery atherosclerosis (63.8%, P < 0.05), lower activated partial thromboplastin time (APTT) (P = 0.0007), patients with ischemic heart disease (IHD) (P = 0.01), and those who underwent craniotomy (P = 0.001). Nonhigh-density lipoprotein cholesterol was inversely related to PSS (P = 0.01). Higher stroke severity (89%) and confusion (67%) at the time of presentation were independently related to PSS. CONCLUSIONS: Eighty-two (13.8%) patients had PSS. Greater stroke severity at presentation with altered sensorium was independent risk factors for the development of PSS. Patients with underlying IHD, lower APTT, and undergoing neurosurgical intervention require vigilant monitoring for PSS.

Résumé Ontexte et objectif:Divers facteurs de risque ont été décrits dans la littérature qui augmentent le risque de convulsions associées à un AVC. Cette étude visait à déterminer le taux d'occurrence des crises post-AVC (PSS) et les facteurs de risque associés dans la population arabe.Matériels et Méthodes:L'étude a inclus tous les patients victimes d'AVC âgés de plus de 18 ans avec un suivi minimum de 24 mois après l'AVC pour identifier la survenue d'une crise. Les dossiers hospitaliers des patients pour toutes les admissions et visites à la clinique ont été examinés. Les saisies ont été classées en premiers PSS s'ils surviennent dans la semaine suivant l'AVC, et PSS tardif s'ils surviennent après 1 semaine de l'AVC.Résultats:Sur 594 patients, 380 étaient des hommes. Crise d'épilepsie la fréquence était plus élevée dans les infarctus de la circulation antérieure (94,8 %, P < 0,05), la localisation corticale (80,5 %, P < 0,05), l'athérosclérose des grandes artères (63,8 %, P < 0,05), un temps de thromboplastine partielle activé (APTT) inférieur (P = 0,0007), les patients atteints de cardiopathie ischémique (IHD) (P = 0,01) et ceux ayant subi une craniotomie (P = 0,001). Le cholestérol des lipoprotéines non de haute densité était inversement lié au PSS (P = 0,01). Course supérieure la gravité (89 %) et la confusion (67 %) au moment de la présentation étaient indépendamment liées au PSS.Conclusions:Quatre-vingt-deux (13,8 %) patients avait PSS. Une plus grande gravité de l'AVC lors de la présentation avec un sensorium altéré était un facteur de risque indépendant pour le développement du PSS. Les patients avec une IHD sous-jacente, un APTT inférieur et une intervention neurochirurgicale nécessitent une surveillance vigilante du PSS.

Demographic Characteristics and Functional Outcome in Posterior Circulation Strokes.

INTRODUCTION: The constantly increasing incidence of stroke in Saudi Arabia substantiates an urgent need to elucidate underlying risk factors and etiologies. In terms of improving outcomes, the predictors of functional outcomes need to be identified as well. As posterior circulation strokes (PCS) have not been studied in detail, the current study aimed to identify the risk factors, etiology, and predictors of outcome in PCS. METHODS: This retrospective study included the data for 138 patients with PCS. Demographics, risk factors, clinical signs/symptoms, etiology, and outcome at discharge and 3-month follow-up were recorded. Factors associated with outcomes were identified, and the difference was ascertained using Chi-square, odds ratios, and 95% confidence intervals. RESULTS: The mean participant age was 58 ± 14.8 years with 73% being males. The mean arrival time was 26.5 ± 31.6 h; with a mean National Institute of Health Stroke scale (NIHSS) score of 7.2 ± 5.6. Motor deficit and dysarthria were the most common presentations. Twenty percent of patients received intravenous recombinant tissue plasminogen activator, whereas endovascular thrombectomy was performed in 9 (6.5%). Follow-up outcome at 3 months was available in 113 (81.8%). Male sex, baseline modified Rankin scale of <2, low baseline NIHSS, and stable or improvement in baseline NIHSS during 24 h of admission were documented as predictors of a good outcome, whereas history of atrial fibrillation and prior stroke, high NIHSS at admission and worsening of symptoms during 24 h of admission, as well as bilateral body involvement were associated with poor outcome. CONCLUSION: The functional outcomes and the predictors of functional outcomes did not differ from the previously published literature; however, significant differences were observed in the risk factors and etiological profile in our population. These differences are of potential interest to the researchers and clinicians, as they carry important therapeutic and prognostic implications and need to be verified through large prospective studies.

Résumé Introduction:L'incidence constamment croissante des accidents vasculaires cérébraux en Arabie Saoudite justifie la nécessité urgente d'élucider les facteurs de risque sous-jacents et les étiologies. En termes d'amélioration des résultats, les prédicteurs des résultats fonctionnels doivent également être identifiés. Comme circulation postérieure Les accidents vasculaires cérébraux (PCS) n'ont pas été étudiés en détail, l'étude actuelle visait à identifier les facteurs de risque, l'étiologie et les prédicteurs de l'issue du PCS.Méthodes:Cette étude rétrospective incluait les données de 138 patients atteints de PCS. Données démographiques, facteurs de risque, signes/symptômes cliniques, étiologie, et les résultats à la sortie et au suivi à 3 mois ont été enregistrés. Les facteurs associés aux résultats ont été identifiés et la différence a été déterminé à l'aide du chi carré, des rapports de cotes et des intervalles de confiance à 95 %.Résultats:L'âge moyen des participants était de 58 ± 14,8 ans avec 73 % étant des hommes. L'heure moyenne d'arrivée était de 26,5 ± 31,6 heures; avec un score moyen sur l'échelle NIHSS (National Institute of Health Stroke Scale) de 7,2 ± 5,6. Moteur le déficit et la dysarthrie étaient les présentations les plus courantes. Vingt pour cent des patients ont reçu du plasminogène tissulaire recombinant par voie intraveineuse activateur, alors qu'une thrombectomie endovasculaire a été réalisée dans 9 cas (6,5 %). Le résultat du suivi à 3 mois était disponible chez 113 (81,8 %). Mâle sexe, échelle de Rankin modifiée de base <2, NIHSS de base faible et stabilité ou amélioration du NIHSS de base au cours des 24 heures suivant l'admission. documentés comme prédicteurs d'un bon résultat, alors que des antécédents de fibrillation auriculaire et d'accident vasculaire cérébral antérieur, un NIHSS élevé à l'admission et une aggravation des symptômes au cours des 24 heures suivant l'admission, ainsi qu'une atteinte corporelle bilatérale étaient associés à de mauvais résultats.Conclusion:le fonctionnel les résultats et les prédicteurs des résultats fonctionnels ne différaient pas de la littérature publiée précédemment; cependant, une différence significative ont été observés dans les facteurs de risque et le profil étiologique dans notre population. Ces différences sont potentiellement intéressantes pour les chercheurs et cliniciens, car ils comportent d'importantes implications thérapeutiques et pronostiques et doivent être vérifiés par de vastes études prospectives.

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.

Outcomes and predictors of seizure recurrence in post-stroke epilepsy, a retrospective hospital-based study.

BACKGROUND: The occurrence of seizures following a stroke is a well-recognized complication associated with a significant increase in morbidity and mortality. Despite the numerous studies examining outcomes and risk factors related to post-stroke seizures (PSS), there remains a lack of clarity regarding the clinical characteristics, treatment, and PSS recurrence (PSSR) rates in patients experiencing their initial episode of PSS. PURPOSE: This study aimed to determine the risk factors for developing recurrent seizures after first PSS and their effects on functional outcomes and mortality. METHODS: All patients underwent an electroencephalography (EEG) and were monitored for a minimum of 24 months following the first PSS. The primary endpoint was the recurrence of seizures. Predictive factors for PSSR were determined by using the Cox-proportional hazards model, and the cumulative latency of recurrence at 90, 180, 360, and 720 days was estimated using Kaplan-Meier analysis. RESULTS: Seizure recurred in 36.8% (39/106). Significant association of PSSR was noted with female gender, use of older anti-seizure medications (ASMs) (p<0.001), EEG findings as focal slow wave activity (p<0.001), Ictal epileptiform abnormalities (p=0.015), status epilepticus (p=0.015), and with severe disability (p=0.008). However, multivariate cox-proportional hazards model showed significant association of female gender (HR=3.28; 95% CI: 1.42-7.58; p=0.006). Hazard ratio (HR) was increased with older ASMs use, focal aware seizure types, Ictal EAs, and periodic discharges on EEG; though, statistically significant. CONCLUSION: Factors such as the type of ASMs, EEG findings, and seizure type were significantly linked to PSSR. Female gender was the only independent predictor established. Additionally, significant functional decline was reported with recurrence.

Clinical Implications of Various Electroencephalographic Patterns in Post-Stroke Seizures. The Utility of Routine Electroencephalogram.

Objective: Post-stroke seizures (PSS) are one of the major stroke-related complications. Early therapeutic interventions are critical therefore using electroencephalography (EEG) as a predictive tool for future recurrence may be helpful. We aimed to assess frequencies of different EEG patterns in patients with PSS and their association with seizure recurrence and functional outcomes. Methods: All patients admitted with PSS were included and underwent interictal EEG recording during their admission and monitored for seizure recurrence for 24 months. Results: PSS was reported in 106 patients. Generalized slow wave activity (GSWA) was the most frequent EEG pattern observed (n = 62, 58.5%), followed by Focal sharp wave discharges (FSWDs) (n = 57, 55.8%), focal slow wave activity (FSWA) (n = 56, 52.8%), periodic discharges (PDs) (n = 13, 12.3%), and ictal epileptiform abnormalities (n = 6, 5.7%). FSWA and ictal EAs were positively associated with seizure recurrence (p < .001 and p = .015 respectively) and it remained significant even after adjusting for age, sex, stroke severity, stroke subtype, or use of anti-seizure medications (ASMs). Other positive associations were status epilepticus (SE) (p = .015), and use of older ASM (p < .001). FSWA and GSWA in EEG were positively associated with severe functional disability (p = .055, p = .015 respectively). Other associations were; Diabetes Mellitus (p = .034), Chronic Kidney Disease (p = .002), use of older ASMs (p = .037), presence of late PSS (p = .021), and those with Ischemic stroke (p = .010). Conclusions: Recognition and documentation of PSS-related EEG characteristics are important, as certain EEG patterns may help to identify the patients who are at risk of developing recurrence or worse functional outcomes.

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.

Important Factors to Expect the Outcome After Intracerebral Hemorrhage: An Observational Study From a University Hospital in Saudi Arabia.

BACKGROUND: Intracerebral hemorrhage (ICH) has worse clinical outcomes than other stroke types. The risk factors contributing to ICH outcomes are not entirely understood, and published literature from Saudi Arabia on ICH outcomes is limited. Our goal was to study the specific clinical and imaging determinants of ICH outcomes. METHODS: We retrospectively retrieved all patients with spontaneous ICH (SICH) from a prospective King Fahd Hospital University registry between 2017 and 2019. The clinical characteristics of ICH events and data on clinical outcomes (6 to 12 mo) were recorded. Groups of patients with a favorable modified Rankin Scale of 0 to 2 and nonfavorable outcomes of a modified Rankin Scale of 3 to 6 were investigated. The relationship between the clinical characteristics of the SICH event and its outcomes was assessed using linear and logistic regression analyses. RESULTS: A total of 148 patients with a mean age of 60.3 years (±15.2) and a median follow-up of 9 months were included. Unfavorable outcomes were reported in 98 patients (66.2%). The ICH event variables associated with unfavorable outcomes were impaired renal function, Glasgow Coma Score <8, hematoma volume, hematoma expansion, and intraventricular extension (IVE). CONCLUSIONS: Our study demonstrated important clinical and radiologic features in patients with ICH that may affect their clinical long-term functional outcomes. A larger multicenter study is required to validate our results and evaluate the methods to improve health care in patients with SICH.

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.

Estimated prevalence study of attention-deficit/hyperactivity disorder among eastern province children in the Kingdom of Saudi Arabia.

Background: Studying mental disorders in children is significantly important due to the huge suffering of educational and psychosocial impairments in adult life. Attention-deficit/hyperactivity disorder (ADHD) is considered the most common mental disorder in children, especially in early school-aged children. It manifests in about 8%-12% of children in the world. In Saudi Arabia, it affects 4%-12% of children. Objective: The study aimed to count the number of undiagnosed ADHD cases and the associated risk factors in Eastern Province in Kingdom of Saudi Arabia (KSA). Methods: A cross-sectional study was performed among girls' and boys' children aged 6-10 years old in Eastern Province in KSA with a random selection of parents. Sample size is equal to 1658. The assessment was done by an online questionnaire filled it by parents using Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition diagnostic criteria and Connor's scale of ADHD excluding any developmental or mental disorder at the beginning of the questionnaire. Results: After excluding the participants who were diagnosed with behavioral and growth developmental disorder, the remaining 1430 have been screened for ADHD based on Connor's scale. 185 of a child out of 1430 were suggested to have ADHD, of which 10 out of them show the signs of ADHD, 76 of them have moderately severe ADHD, and 99 out of them have atypical or severe ADHD based on Connor's scale of ADHD. The study shows that there is a significant relationship between the positive screening of ADHD and gender males (71.35%), females (28.64%), family history (20.5%), nervous system diseases (4.32%), brain damage from trauma (9.72%), smoking habit of the mother (8.64%), smoking during pregnancy (3.78%), mother exposure to second-hand smoking (42.16%), child exposure to a toxic substance like lead during the early life (1.62%), and the preterm labor (15.13%). However, the study shows there is no significant relationship between the positive screening of ADHD with age, drinking alcohol, and central nervous system infection. Conclusion: The prevalence of undiagnosed ADHD is slightly high. Also, it has many causes of ADHD including gender, smoking, parental psychiatric disorders, and obstetric and pregnancy problems.

Résumé Background: L'étude des troubles mentaux chez les enfants est d'une importance considérable en raison des souffrances liées aux difficultés scolaires et psychosociales qui perdurent à l'âge adulte. Le trouble du déficit de l'attention avec hyperactivité (TDAH) est considéré comme le trouble mental le plus courant chez les enfants, notamment chez les enfants d'âge scolaire précoce. Il se manifeste chez environ 8% à 12% des enfants dans le monde. En Arabie saoudite, il touche entre 4% et 12% des enfants. Objective: L'étude visait à dénombrer le nombre de cas de TDAH non diagnostiqués et les facteurs de risque associés dans la province orientale du Royaume d'Arabie saoudite (KSA). Methods: Une étude transversale a été réalisée auprès d'enfants de filles et de garçons âgés de 6 à 10 ans dans la province orientale de l'Arabie saoudite, en utilisant une sélection aléatoire des parents. La taille de l'échantillon est égale à 1658. L'évaluation a été réalisée à l'aide d'un questionnaire en ligne rempli par les parents, en utilisant les critères diagnostiques du Manuel diagnostique et statistique des troubles mentaux, cinquième édition, ainsi que l'échelle de Connor pour le TDAH, en excluant tout trouble du développement ou trouble mental au début du questionnaire. Résultats: Après exclusion des participants ayant été diagnostiqués avec un trouble du comportement et du développement, les 1430 restants ont été dépistés pour le TDAH à l'aide de l'échelle de Connor. Parmi ces enfants, 185 ont été suggérés d'avoir un TDAH, dont 10 présentent des signes de TDAH, 76 présentent un TDAH modérément sévère et 99 présentent un TDAH atypique ou sévère selon l'échelle de Connor. L'étude révèle qu'il existe une relation significative entre le dépistage positif du TDAH et le genre masculin (71,35 %), féminin (28,64 %), les antécédents familiaux (20,5 %), les maladies du système nerveux (4,32 %), les lésions cérébrales suite à un traumatisme (9,72 %), la consommation de tabac par la mère (8,64 %), la consommation de tabac pendant la grossesse (3,78 %), l'exposition de la mère à la fumée secondaire (42,16 %), l'exposition de l'enfant à une substance toxique comme le plomb pendant la petite enfance (1,62 %) et le travail prématuré (15,13 %). Cependant, l'étude montre qu'il n'existe aucune relation significative entre le dépistage positif du TDAH et l'âge, la consommation d'alcool et les infections du système nerveux central. Conclusion: La prévalence du TDAH non diagnostiqué est légèrement élevée. De plus, il existe de nombreuses causes du TDAH, dont le genre, le tabagisme, les troubles psychiatriques des parents, ainsi que les problèmes obstétriques et durant la grossesse. Mots-clés: Attention, trouble du déficit de l'attention/hyperactivité, Province orientale, hyperactivité, Royaume d'Arabie saoudite.

Therapeutic Dilemma of Wake-up Stroke: Clinical and Brain Imaging Characteristics and Reperfusion as a Treatment Option.

Objective: Wake-up stroke (WUS) comprises a significant proportion of ischemic strokes. However, due to unclear onset, these patients are often not considered for reperfusion therapy. The objective of this study was to investigate the clinical and imaging differences between WUS patients and those with clear-onset stroke, documenting any sex, age, or risk factor predilection for WUS.Methods: This prospective observational cohort study used an ongoing stroke registry to identify patients with acute ischemic stroke admitted to a hospital in Saudi Arabia within 5 days of symptom onset from April 2018 to March 2020. Patients were classified into 2 groups: WUS and clear-onset stroke.Results: Among 645 patients, 448 met the criteria for acute ischemic stroke and were included in the study. WUS was identified in 112 (25%) patients. There were no differences in sex or median age between the 2 groups. Diabetes mellitus, hypertension, and dyslipidemia were higher in the WUS group, while atrial fibrillation, history of stroke and epilepsy were higher in the clear-onset stroke group. Bihemispheric stroke was higher in the clear-onset stroke group than in the WUS group (6.0% vs 2.7%).Conclusions: Only minor dissimilarities between clinical and radiologic features of WUS and clear-onset stroke were found. Circadian patterns of stroke onset were observed in both groups. Stroke was more likely to occur during waking than during sleep, and a diurnal pattern of common occurrence during the morning was documented. Recognition of the acceptable timeframe for acute reperfusion therapy in unwitnessed strokes is crucial so that thrombolytic treatment can be started for these patients.

Driving Habits Among Patients With Epilepsy in a Tertiary Care Hospital in Saudi Arabia.

Objective: Patients with epilepsy are instructed to avoid high-risk situations such as certain occupations and driving to prevent harm to themselves and others. There is considerable variation in standards to decide if a patient with epilepsy is fit to drive among various countries worldwide, and these patients often continue to drive despite being advised not to. The objective of this study was to determine if patients with epilepsy and uncontrolled epilepsy are driving, the awareness of epilepsy patients regarding driving, and whether physicians are advising the patients to stop driving.Methods: A clinic-based study was conducted in Saudi Arabia from June 2018 through January 2019 with structured interviews of consecutively recruited male patients with established epilepsy diagnosis. Demographic factors, employment status, control of seizures, and awareness of driving restrictions were documented.Results: The response rate was 80.6%. Of the 121 participants (mean age of 35.97 years), 110 (90.9%) were driving, and 39% of those patients were married. Also, 76.9% of participants were employed. Of the participants, 48.8% had 1 seizure in the last 6 months, and 88% of those patients were driving; 51.2% had not had a seizure in the last 6 months, and 93% of those patients were driving. Additionally, 17.4% reported a seizure attack while driving. Only 38% of respondents were aware they should stop driving, whereas 62% were unaware of driving restrictions.Conclusions: There is a definite need to establish a driving policy for patients with epilepsy and to optimize the standards of care of epilepsy patients in Saudi Arabia to ensure minimization of harm to both patients and the public.

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.

The Emerging Role of Telestroke in the Middle East and North Africa Region in the Era of COVID-19.

Stroke is the second most common cause of death worldwide. It is a medical emergency demanding immediate recognition to provide time-sensitive acute management. The coronavirus disease 2019 (COVID-19) pandemic has challenged acute stroke care, and alternate models of treatment are needed. Telestroke is well proven as a valid tool for acute stroke assessment and has been utilized successfully to manage patients remotely in many parts of the world, though it is underutilized in the Middle East and North Africa region. Given the challenges associated with the COVID-19 pandemic, such as risk of physician exposure to infection, implementation of a telestroke system is critical to provide consultant stroke physician coverage. This article provides a proposed model for coordinated telestroke. Implementation of telestroke in the Middle East and North Africa region and other underdeveloped areas will optimize stroke management, especially during the COVID-19 era.

Clinical Correlates of Electroencephalographic Patterns in Critically Ill Patients.

OBJECTIVE: The objective of this study was to determine the frequency and clinical correlates of different electroencephalographic patterns and their association with clinical outcomes in critically ill patients. SUBJECTS AND METHODS: This retrospective cross-sectional study was performed in the Neurology Department of King Fahd Hospital of the University, Kingdom of Saudi Arabia and involved a review and analysis of medical records pertaining to 179 intensive care unit patients who underwent electroencephalography (EEG) in the June to November 2018 period. RESULTS: Among the different etiologies, presence of spike and wave or sharp wave (SWs) was associated with encephalitis (P = .01) and large artery stroke (P = .01), whereas markedly attenuated EEG activity (p = .04) and burst suppression (P = .01) were associated with large artery stroke and hypoxic ischemic encephalopathy (HIE), respectively. Generalized theta activity (P = .01) was significantly found in patients of septic encephalopathy, while generalized delta activity (P = .02) and asymmetrical background (P = .04) were significantly associated with traumatic brain injury. Presence of periodic discharges in EEG was significantly associated with more adverse clinical outcomes (P = .001), whereas rhythmic delta activity (RDA) (P = .03), persistent focal slow wave activity (P = .01), and asymmetric background (P = .002) were found in patients who were discharged from hospital with sequelae of current illness. CONCLUSION: Certain EEG patterns are associated with particular underlying etiologies like SWs for encephalitis, markedly attenuated EEG activity and burst suppression with large artery stroke and HIE, respectively. Whereas few EEG patterns, including periodic discharges, RDA, persistent focal slow wave activity have some prognostic value in critically ill patients. However, they cannot be used as markers for prognostic assessment of patients without considering other clinical and diagnostic variables. Further larger prospective studies with continuous EEG monitoring with control of confounding factors are needed.

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.

Timing to start anticoagulants after acute ischemic stroke with non-valvular atrial fibrillation.

OBJECTIVE: To identify timing for initiation of anticoagulation therapy in acute ischemic stroke (AIS) with non-valvular AF as regards safety and efficacy by detecting the rate of intracranial haemorrhage (ICH) and recurrent ischemic symptoms (RIS) during follow-up. METHODS: This is a prospective observational cohort study conducted at King Fahd Hospital of the University including 120 patients with AIS/TIAs from July 2016 till July 2018. We compared patients who received anticoagulants 1-6 days (Group I (45.83%), 7-14 days, Group II (35%), and > 14 days after the ischemic event (Group III (19.17%). Follow-up was at least 3 months and included identifying ICH or RIS. RESULT: ICH has occurred in 26.67% (n = 32) patients with a highly statistically significant association with time of treatment (P-value = .01) being higher in group I (n = 17) compared to only 1 case in group III. Subgroup analyses on the ICH patients (n = 32) has revealed statistical significant association with higher NIHSS score (P = .001). Also, the type of anticoagulants used between three groups pointed to an association existence (p = .02), however, the direction of this association cannot be determined. There was no statistical significant association between RIS (occurred in 4.16% (n = 5) with time of treatment (P = .754). Functional outcome at 3-6 months measured by mRS did not differ between 3 groups (worst mRS in group I). CONCLUSION: Early initiation of anticoagulation after stroke, especially in cases of large infarction, is associated with significant risk of ICH. This risk is highest with warfarin and lowest with DOAC.

Risk factors and subtypes of ischemic stroke in young patients: an observational study from a teaching hospital in Saudi Arabia.

Young adults are a key part of any society and the psychosocial and economic burden of any chronic or devastating disease in this particular group has significant consequences and impacts negatively on the development of the society as a whole. Although stroke in this age group is relatively rare, its consequences, in terms of lifelong dependence and disability, are substantial. Therefore, it is important to address this issue. In this retrospective epidemiological study, we analyzed the medical records of young patients (aged 18- 45 years) with a diagnosis of stroke during the study period (January 2014 - February 2018). The study population numbered 85 patients, and a male predominance was observed (67:18). Hypertension was the commonest risk factor, present in 43 (50.6%), followed by dyslipidemia and diabetes mellitus, present in 37 (43.5%) and 30 (35.3%) respectively. Lacunar infarction (LI) was the commonest type of stroke, observed in 30.6%, followed by cardioembolic stroke (20%). Of the other determined causes, Sickle cell disease was the most frequent etiology. Undetermined causes were less frequent in our study (15.6%) and the presence of multiple etiologies was the main reason for classifying patients in this group. Sickle cell disease was more common than arterial dissection in our study. In our cohort of patients, stroke risk factors and classification of stroke etiologies according to the Trial of Org 10172 in Acute Stroke (TOAST) criteria were found to be in accordance with the current literature. Slight discrepancies were observed in gender distribution and etiologies compared with other studies from Saudi Arabia and international studies, and these need to be examined further through prospective studies.