Current Journal of Neurology最新文献

Background: Cognitive dysfunction is one of the problems that patients with neuromyelitis optica spectrum disorder (NMOSD) suffer from. We aimed to assess the association between demographic and clinical features as well as body mass index (BMI) and cognitive function in patients with NMOSD. Methods: A cross-sectional study was performed on 41 patients with definite diagnosis of NMOSD. Serum status of neuromyelitis optica immunoglobulin G (NMO-IgG) was determined using enzyme-linked immunosorbent assay (ELISA) method. Cognitive function was assessed by Minimal Assessment of Cognitive Function in Multiple Sclerosis (MACFIMS) battery which is validated for Persian people before and North American Adult Reading Test (NAART). Results: The mean score of NAART test was higher in participants with normal weight compared with overweight patients (40.47 ± 3.51 vs. 36.00 ± 5.74, P = 0.02). Current age was negatively correlated with Delis-Kaplan Executive Function System (D-KEFS)-Sorting (P = 0.05, r = -0.30). The correlation of duration of disease and cognitive performance was not significant (P > 0.05). Higher physical disability based on Expanded Disability Status Scale (EDSS) was correlated with lower results in Brief Visuospatial Memory Test-Revised (BVMT-R) (P < 0.01, r = -0.50), California Verbal Learning Test-second edition (CVLT-II)-Delayed Recall (P = 0.02, r = -0.35), and Symbol Digit Modalities Test (SDMT) (P = 0.03, r = -0.33) subtests of MACFIMS. Annual relapse rate was indirectly correlated with CVLT-II (P = 0.03, r = -0.34) and CVLT-II-Delayed Recall (P = 0.01, r = -0.38). Male participants obtained better scores in Paced Auditory Serial Addition Test (PASAT) subtest (P = 0.05). NMO-IgG seropositive patients had poorer performance in terms of CVLT-II-Delayed Recall, Controlled Oral Word Association Test (COWAT), and D-KEFS-Descriptive (P < 0.05). Participants with bachelor and master education degrees showed significantly better results compared to those with high school degree (P < 0.05). Conclusion: Investigating the clinical and demographic factors affecting cognitive impairment can increase the awareness of health care providers for early diagnosis of cognitive impairment in patients with NMOSD and increase the quality of health services.

Background: Swallowing is one of the most complex functions of the central nervous system (CNS), which is controlled by different parts of the brain. Oropharyngeal dysphagia (OD) is one of the most common complications after stroke. Despite a variety of behavioral, compensatory, and rehabilitative methods, many stroke patients still suffer from swallowing disorders that adversely affect their quality of life (QOL). The aim of this study was to evaluate the effect of pyridostigmine on patients with post-stroke dysphagia. Methods: A randomized, double-blind, placebo-controlled clinical trial was carried out on 40 patients suffering from post-stroke dysphagia. Patients were assigned randomly into two groups: intervention and control groups (20 in each group). The intervention group was treated with pyridostigmine (60 mg, three times a day, 30 minutes before each meal for three weeks), and the control group received placebo treatment in the same way. All patients (intervention and control) were evaluated according to National Institutes of Health Stroke Scale (NIHSS), modified Rankin Scale (mRS), and Functional Communication Measures (FCM)/American Speech-Language-Hearing Association (ASHA) criteria at baseline and after three weeks of intervention. Values of P < 0.05 were considered statistically significant. Results: In the intervention group, the mean values of NIHSS, mRS, and ASHA/FCM were significantly reduced following three weeks of treatment with pyridostigmine (P = 0.002, P = 0.003, and P < 0.001, respectively), but no significant differences were found in the mean NIHSS, mRS, and ASHA/FCM in the placebo group. Conclusion: Although pyridogestamine is somewhat effective in post-stroke dysphagia, it has not been shown to be more important in preventing aspiration pneumonia and length of hospital stay.

Background: Fatigue is one of the most frequent complaints in patients with motor neuron diseases (MNDs), with a significant impact on the quality of life (QOL). There is lack of enough evidence for current pharmacological or non-pharmacological treatments of fatigue in this population to be applied in clinical setting. Energy conservation strategies are one of the key interventions for fatigue management in chronic diseases. We aimed to investigate the effect of applying these techniques in the fatigue management of patients with MND. Methods: This randomized controlled trial (RCT) study was carried out on 28 patients with MND. Participants were randomly assigned to either the intervention or control group. In addition to routine treatment, patients in the intervention group participated in 3 weekly 1-hour energy conservation programs provided by an experienced occupational therapist. The Fatigue Severity Scale (FSS) score, 36-Item Short Form Survey (SF-36), and Canadian Occupational Performance Measure (COPM) were measured at baseline, immediately after the last intervention session, and one month later. Results: FSS and COPM significantly changed after the course in the intervention group (P < 0.001 and P = 0.001, respectively). Both FSS and COPM improved significantly toward the final assessment only in the intervention group. The SF-36 changes were not significant in each of the groups. Conclusion: According to the findings of the present study, using energy conservation strategies could lead to better mid-term fatigue management and occupational performance improvement, but it did not improve QOL in patients with MND.

Background: Remote ischemic preconditioning (RIPC) has been proposed as a possible potential treatment for ischemic stroke. This study aimed to investigate the frequency of micro-embolic brain infarcts after RIPC in patients with stroke who underwent elective carotid artery stenting (CAS) treatment. Methods: This study was managed at Shiraz University of Medical Sciences in southwest Iran. Patients undergoing CAS were randomly allocated into RIPC and control groups. Patients in the RIPC group received three intermittent cycles of 5-minute arm ischemia followed by reperfusion using manual blood cuff inflation/deflation less than 30 minutes before CAS treatment. Afterward, stenting surgery was conducted. Magnetic resonance imaging (MRI), including diffusion-weighted imaging (DWI) and apparent diffusion coefficient (ADC), was acquired within the first 24 hours after CAS. Results: Seventy-four patients were recruited (79.7% men, age: 72.30 ± 8.57). Both groups of RIPC and control had no significant difference in baseline parameters (P > 0.05). Fifteen patients (40.5%) in the RIPC group and 19 (54.1%) patients in the control group developed restricted lesions in DWI MRI. In DWI+ patients, there were no significant differences according to the number of lesions, lesion surface area, largest lesion diameter, cortical infarcts percent, and ipsilateral and bilateral infarcts between the two groups. Conclusion: Although RIPC is a safe and non-invasive modality before CAS to decrease infarcts, this study did not show the advantage of RIPC in the prevention of infarcts following CAS. It may be because of the small sample size.

Background: The B vitamins can potentially help prevent migraine. This study was designed to examine the effects of supplementation with thiamine (B1), pyridoxine (B6), cobalamin (B12), folic acid (B9), and a combination of these vitamins on women with episodic migraine (EM). Methods: This study was a double-blind, placebo-controlled, randomized, clinical trial conducted on 120 women with EM. The participants were divided into the 6 groups of B1 (n = 20), B6 (n = 20), B12 (n = 20), B9 (n = 20), vitamin B complex (n = 20), and placebo (n = 20). Subjects received 1 capsule daily for 12 weeks. As part of the baseline and post-intervention phases, paper-based headache diaries were used to record the number of abortive drugs consumed and the frequency of headache attacks, and the Migraine Disability Assessment Questionnaire (MIDAS) was used to assess migraine disability. Results: A 16-week study on women with EM revealed that the mean changes in the frequency of headache attacks decreased significantly in all vitamin groups in comparison with the placebo group (P < 0.001). In contrast to the placebo, there was also a significant improvement in the migraine disability score in each vitamin group (P < 0.001). The 12-week supplementation with vitamins B9, B1, B6, B12, and B complex also brought on a significant decrease in the use of abortive drugs compared to the placebo group (P = 0.032). Conclusion: The results of this study showed that B1, B6, B12, and B9, and a combination of these vitamins could be effective as an adjuvant in treatment and prophylaxis of EM. Further large trials with long-term follow-ups will be required to confirm our results.

Background: According to the American Heart Association and American Stroke Association (AHA/ASA) guidelines, in acute stroke, the door-to-computed tomography (CT) scan (DTC) time should be less than 25 minutes, and time to injection of recombinant tissue-type plasminogen activator (r-tPA) [door-to-needle (DTN) time] should be less than 60 minutes. Methods: We had a tendency to prospectively collect the clinical and time information of patients who received r-tPA during one year after the initiation of prehospital notification (PN). Patients were divided into three groups, covering patients transferred by Emergency Medical Service (EMS) with and without PN, and non-EMS. We then contrasted the impact of EMS with PN and EMS use on onset-to-needle time (ONT), and the neurological outcome. Good outcome was determined as Modified Rankin Scale (MRS) ≤ 2 at 3-month follow-up. Results: Among 102 studied patients, 64% were transferred by EMS, of whom 53.9% entered PN. Compared with non-PN groups, EMS with PN group showed significantly shorter DTN and DTC time, as well as ONT. Conclusion: Our study showed that EMS with PN, rather than EMS, significantly improved stroke outcome by shortening of ONT.

Background: Over the past decades, wearable robotic gloves due to their positive features are used by clinicians to improve motor function in the upper extremity. This systematic review aims to evaluate the studies that investigated the therapeutic effects of wearable robotic gloves to improve hand function in stroke patients. Methods: The most related databases including MEDLINE (PubMed), ISI Web of Knowledge, Scopus, IEEE, and Google Scholar were systematically searched and studies were collected up to September 2021. The methodological quality assessment was done using an adapted version of the Downs and Black checklist. Results: Of the 2674 articles searched, 5 studies were recognized as being relevant in this systematic review. The methodological quality of all included studies was between 7 to 10 points of adapted 12-point score of Downs and Black checklist. All studies concluded that the introduced robotic device had a good therapeutic effect on investigated patients' hand function. The studies had limitations in terms of the level of evidence, sample size, stroke patient groups, and therapeutic process. Conclusion: There is no standard approach with definite intervention timing to evaluate the effect of such devices. Therefore, more comprehensive studies are needed to confirm the therapeutic effects of wearable robotic gloves on improving hand function after a stroke.