The Egyptian Journal of Neurology, Psychiatry and Neurosurgery

This review summarises and discusses recent findings concerning the pathophysiology, clinical presentation, diagnosis, treatment, and outcome of SARS-CoV-2-associated Guillain-Barre syndrome (SC2-GBS). By the end of December 2020, at least 220 patients with SC2-GBS have been published in 95 papers. SC2-GBS is most likely secondary due to an immune reaction against SARS-CoV-2 since the virus has not been found in the CSF of any SC2-GBS patient so far reported. SC2-GBS occurs in each age group and does not differ from non-SC2-GBS regarding clinical presentation and treatment, but the outcome of SC2-GBS is worse compared to non-CS2-GBS patients, and the prevalence/incidence of GBS most likely increased since the outbreak of the pandemic. Early diagnosis of SC2-GBS is warranted to apply appropriate treatment in due time and to improve the overall outcome from the infection.

Hepatocyte growth factor (HGF) has an obvious pathological role in atherosclerosis and plaque instability leading to an acute ischemic stroke; however, its beneficial role in stroke recovery is still restricted to experimental studies. The aim of the current study was to investigate the association between HGF and carotid atherosclerosis and evaluate its value as a prognostic marker of ischemic stroke and its role in stroke recovery. This case–control study was done on 100 patients with first time anterior circulation ischemic stroke, subjected to clinical and laboratory evaluation of atherosclerosis risk factors. Brain imaging, cardiac work-up and ultrasonographic assessment of carotid atherosclerosis (using intimal medial thickness and plaque score) were all done. Clinical evaluation of initial stroke severity, using National Institutes of Health Stroke Scale (NIHSS), and stroke outcome after 3 m, using Modified Rankin Scale (MRS), was performed. Measurement of HGF serum concentration was done to all stroke patients within 24 h of stroke onset and compared to results of 100 matched healthy subjects aged more than 50 years. HGF was significantly higher in stroke patients than healthy controls and in atherothrombotic than cardioembolic stroke group and its level was significantly correlated with atherosclerosis risk factors, degree of carotid atherosclerosis and better stroke outcome; however, it was not significantly correlated with initial stroke severity. HGF is strongly associated with carotid atherosclerosis and other atherosclerosis risk factors and subsequent atherothrombotic stroke. Also, it can be used as a good prognostic marker in atherothrombotic stroke suggesting its role in stroke recovery but more studies are needed to explore this beneficial role as well as its therapeutic potentials in ischemic stroke patients.

Covert cerebral small vessel disease (cCSVD) is associated with many age-related morbidities with little available data regarding the pathophysiology and role of genetics in it. This study aims to investigate the genetic load in a sample of Egyptian patients with cCSVD. Thirty patients with cCSVD were recruited and underwent cognitive, gait, sphincter assessment, magnetic resonance imaging (MRI) brain, and blood sampling for whole exome sequencing. The mean age for the patients was 65.93 ± 8.8 with male patients representing 63.33% of the studied sample. The major risk factor was hypertension followed by diabetes mellitus, dyslipidaemia, and smoking. The main presenting symptom was cognitive impairment, found in 60% of the patients and the mean duration of symptoms was 2.1 ± 1.12 years. Two out of thirty patients were positive for a known pathogenic gene (NOTCH3 and COL4A1) despite the absence of family history in one representing 6.7% of the entire studied sample. Meanwhile, three patients had variant genes not previously linked to cCSVD. Whole exome sequencing and genetic studying of patients with cCSVD is of utmost importance as the genetic load is underestimated in the Egyptian population.

Traditionally, non-invasive and invasive techniques were used for the treatment of cervicogenic headache (CH). Greater occipital nerve block is the most frequent peripheral nerve block invasive technique used for the management of cervicogenic headache. The purpose of this prospective, double-blinded study was to compare the efficacy of two different techniques: multifidus cervicis plane block and greater occipital nerve block in the treatment of refractory cervicogenic headache by using ultrasound. Sixty patients with cervicogenic headache were recruited and diagnosed according to the ICHD-III beta version. The patients were divided into two groups, one group was for greater occipital nerve block and the other group was for multifidus cervicis plane block with ultrasound-guided. Visual analog scale (VAS) was 2.09% in the multifidus cervicis plane block (MCPB) group and was 2.22% in the greater occipital nerve block (GONB) group with a median reduction of − 4.33 and − 3.048, respectively, at 2-week visits with a statistically significant difference better in the MCPB group (P < 0.001). At 4 weeks visits, VAS scale was better in the MCPB group than in the GONB group (3.79 and 4.44, respectively) with a median reduction in VAS scale (− 3.27 and − 3.095, respectively) and statistically significant differences between both groups (P = 0.020). Both the ultrasound-guided multifidus cervicis plane block and greater occipital nerve block are effective as intervention techniques in the treatment of refractory cervicogenic headache. These techniques are simple, safe, more reliable with less side effects, and often reduce the requirements of analgesic drugs.

The coronavirus pandemic (COVID-19) has disrupted the routine neurosurgical education and practice worldwide and so more in developing countries. Continuing the neurosurgical training while maintaining the well-being of our residents should be the primary concern of leaders of training programs. The aim of this cross-sectional study was the evaluation of the impact of COVID-19 on neurosurgical residency programs and neurosurgical practice in five tertiary medical centers in our country. We also aimed at detecting the shortcomings in training programs and provide solutions. An online questionnaire-based survey was prepared and sent to 73 neurosurgery residents in 5 tertiary centers in 4 governorates by social networks. The questions focused on the evaluation of clinical and surgical activities before and after the pandemic. Safety precautions, education, and residents’ mental health were also evaluated. Fifty residents responded to our survey. We identified a significant reduction in surgical cases, inpatient services, and working hours per week during the pandemic comparing to the pre-pandemic era. We also identified a significant increase in research hours and changes in educational methods from in-person methods to virtual ones. Seventy-four percent reported that personal protective equipment was not adequate for their duties. Sixty-eight percent experienced burnout symptoms. Unavailability of personal protective equipment, negative concerns regarding the surgical career, and financial strains significantly affected the mental health of residents. The survey highlighted the negative impact of COVID-19 on neurosurgical practice and education. Being in a developing country, this negative effect was amplified due to financial reasons and weak infrastructure. Inadequate personal protective equipment increased the risk of infection and work-related stress among neurosurgery residents. We lacked telemedicine services in our country. Online education gained more visibility and awareness.

The early hours after an acute stroke are crucial; early accurate prediction of outcome in stroke patients can help health system providers and families to choose appropriate lines of management and plan for the future. The aim of this work is to assess the role of hemorheological parameters (such as blood viscosity, hematocrit, platelet aggregation, and leukocyte count), protein C, protein S, antithrombin III, and serum albumin as predictors of stroke outcome. Thirty subjects, 20 patients with acute ischemic stroke within 24 h from the onset and 10 normal subjects, were included in this case control study. Clinical, functional, and radiological evaluation was done for the patients, and all patients and control were subjected to routine laboratory tests and assessment of blood viscosity, hematocrit level, platelet aggregation, protein C, protein S, and antithrombin III. Platelet aggregation was significantly higher and serum albumin was significantly lower in stroke patients compared to control (p value = 0.000 and 0.039) respectively. On comparing between patient with good and poor outcome, good outcome was associated with increased serum albumin level at admission (p value = 0.03) respectively. A significant negative correlation was found between total leukocyte count, hematocrit value, and stroke outcome (p value = 0.015 and 0.013) respectively. Only albumin was found to be a significant predictor for outcome by linear regression analysis. Serum albumin, hematocrit level, and total leukocyte count at the time of presentation of ischemic stroke are useful markers for stroke outcome.

Papillary tumor of the pineal region is an unusual, recently described entity with potential for misinterpretation as either an ependymoma or choroid plexus papilloma. With few reported cases, there is little data regarding the biologic behavior, natural course and optimal treatment for these patients. Further accumulation of reports will assist with defining this entity and may provide further insight into management of such patients. This patient was a 24-year-old male with new onset seizures and a decreased level of consciousness. MRI scan showed a large heterogeneously enhancing solid-cystic mass in the pineal region extending to the third ventricle. Papillary tumor of the pineal region is a neuroepithelial tumor with distinct morphological and immunohistochemical features that can be utilized to help differentiate it from other primary and metastatic tumors occurring within this region. Although there is currently no clear consensus, the potential for disease progression and CSF dissemination supports early aggressive therapy in these patients.