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    20 January 2021, Volume 16 Issue 01
    Construction and Quality Control of Stroke Care System
    YANG Qiao-Ling, LEI Zhi-Hao, CAI Jing-Jing,YE Shi-Sheng, REN Li-Jie
    2021, 16(01):  1-5.  DOI: 10.3969/j.issn.1673-5765.2021.01.001
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    Architecture Design of Wise Medicine Applied in Mobile Stroke Emergency System based on 5G Network Technology
    ZHENG Bo, DU Xiao, WANG Jian, XIA Bing
    2021, 16(01):  7-14.  DOI: 10.3969/j.issn.1673-5765.2021.01.002
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    Stroke is the leading cause of death and disability. Stroke treatment is highly timedependent. Rapid recanalization of occluded vessels is the key of treatment of acute ischemic stroke. 5G smart mobile stroke emergency system (5G+SMSES) plays critical roles in multifaceted aspects: rapid acquisition of important data through physical terminal, real-time and reliable data transmission through network transmission, intelligent and comprehensive data application through systematic application, and centralized data display through large screens. 5G+SMSES has five functional areas: mobile emergency rescue subsystem, stroke care quality control subsystem, stroke emergency sharing cloud subsystem, stroke-specialized disease database subsystem and stroke care command center subsystem. 5G+SMSES broke the traditional "series" mode of prehospital rescue and inhospital diagnosis and treatment, and facilitated the establishment of a new high-efficient stroke rescue mode of "admission on board" and "no waiting for stroke emergency".

    Application of Telemedicine in Stroke Care System
    SU Ying, CAI Jing-Jing, LEI Zhi-Hao, REN Li-Jie
    2021, 16(01):  15-20.  DOI: 10.3969/j.issn.1673-5765.2021.01.003
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    In the past 20 years, the application of telemedicine in stroke care is still growing, and now it has gradually matured. A series of telestroke projects have been successively launched and some practical guidelines have been published in the foreign countries. However, although the development of telestroke in China is relatively backward, it plays a critical role during the coronavirus disease 2019 (COVID-19) pandemic and it shows a promising prospect. With the gradual establishment of stroke care system in China in recent years, the application of telemedicine in stroke care system became a new model to improve stroke care efficiency, at the same time telemedicine also plays an important role in other aspects such as public awareness education and stroke rehabilitation. Nevertheless, the current telemedicine still face many challenges such as related policy, technology and promotion, which are to be solved to optimize stroke care system and make it play a more important role.

    Progress of Prehospital Stroke Care System
    WANG Yong, LIU Yang, LIU Ren-Yu, ZHAO Jing
    2021, 16(01):  21-26.  DOI: 10.3969/j.issn.1673-5765.2021.01.004
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    This review focused on the recent progress of prehospital stroke care system, which involved prehospital stroke patient self-identification and medical staff stroke identification, onscene rescue, emergency delivery and prehospital-to-inhospital connection etc. In addition, we introduced the prospects of prehospital stroke care system development in China, and made some suggestions including the support from the government, medical resources integration, the latest technology application in stroke care system, to provide a reference for the related studies and development of pre-hospital stroke care system in China.

    Association between Temperature and Stroke Severity in Patients with Small Artery Occlusion Ischemic Stroke
    QIN Yi-Ren, GUO Xiao-Ning, JIANG Jian-Hua, WANG Da-Peng, ZHANG Quan-Quan, LIU Mei-Rong, DIAO Shan-Shan LI Tan, ZHAO Hong-Ru, FANG Qi,
    2021, 16(01):  27-32.  DOI: 10.3969/j.issn.1673-5765.2021.01.005
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    Objective To investigate the association of the ambient temperature and stroke severity in patients with small artery occlusion (SAO) ischemic stroke. Methods The clinical data of SAO ischemic stroke patients who were admitted to Department of Neurology, the First Affiliated Hospital of Soochow University between January 2018 and December 2018 were retrospectively analyzed. The average temperatures on the day of admission were also recorded. The potential risk factors for stroke severity at different temperature mode (cold and warm) in these patients were analyzed. Results A total of 361 patients were included, with 179 cases in warm temperature and 182 cases in cold temperature, 239 cases with minor stroke (NIHSS≤3) and 122 cases with non-minor stroke (NIHSS>3). The cold temperature was an independent risk factor for stroke severity in SAO subtype (OR 3.08, 95%CI 1.52-6.24, P =0.002). The heterogeneity test indicated there were interactions between different risk factors of diabetes mellitus (adjusted OR 3.65, 95%CI 1.14-11.67, P =0.029) and high-risk hyperlipidaemia (adjusted OR 0.24, 95%CI 0.08-0.68, P =0.008) and temperature. The independent risk factors for stroke severity in SAO subtype at different temperature mode were also different. Conclusions Cold temperature was associated with stroke severity in patients with SAO stroke, and the risk factors for stroke severity in SAO subtype at different temperature mode were also different. So the special intervention measures should be made in such patients according to the ambient temperature.

    Association between Red Blood Cell Distribution Width and Visual Impairment in Patients with Idiopathic Intracranial Hypertension
    TIAN Yu, GUAN Ling, CHEN Jie, GONG Xi-Ping, DONG Ke-Hui, MO Da-Peng, WANG Yi-Long
    2021, 16(01):  34-38.  DOI: 10.3969/j.issn.1673-5765.2021.01.006
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    Objective To explore the association of red blood cell distribution width (RDW) and venous sinus stenosis with visual impairment in patients with idiopathic intracranial hypertension (IIH). Methods Data of patients with IIH at Department of Neurology of Beijing Tiantan Hospital, Capital Medical University from September 2011 to September 2018 were retrospectively analyzed. According to having visual impairment or not on admission, all the patients were divided into visual impairment group and no visual impairment group. The RDW level and venous sinus stenosis between the two groups were compared. The patients were divided into high RDW group and low RDW group based on median RDW, the visual loss was compared between the two groups. Results A total of 58 patients were included, with 41 cases in visual impairment group and 17 cases in no visual impairment group, 29 cases in high RDW group and 29 cases in low RDW group. Patients with impaired vision had higher blood RDW than those without impaired vision [43.60 (41.35-51.00) fL vs 40.90 (39.05-43.20) fL, P =0.008]. The proportion of having impaired vision in high RDW group was higher than that in low RDW group [25 (86.3%) vs 16 (55.2%), P =0.009]. Conclusions The level of RDW in IIH patients with visual impairment was higher than that in IIH patients without visual impairment.

    The Value of High Resolution Vessel Wall Magnetic Resonance Imaging in the Etiological Diagnosis of Ischemic Stroke
    LI Wen-Jun, LIU Cui-Cui, LIU Jun-Yan
    2021, 16(01):  39-44.  DOI: 10.3969/j.issn.1673-5765.2021.01.007
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    Objective To evaluate the value of high resolution vessel wall MRI in the etiological diagnosis of ischemic stroke. Methods The clinical and imaging data of patients with acute ischemic stroke who were admitted to our hospital within 2 weeks of onset from May 2014 to May 2019 and had completed HRMRI scan of culprit vessel or the parent artery of culprit vessel during hospitalization were retrospectively analyzed. The etiological diagnosis was made before and after HR-MRI scan in all the patients, according to the CISS criteria. The value of HR-MRI in the etiological diagnosis of ischemic stroke was analyzed. Results A total of 139 patients were included. The etiological diagnosis profile before HR-MRI scan: 89 cases with large artery atherosclerosis (LAA) subtype, 45 cases with penetrating artery disease (PAD) subtype, 3 cases with other etiology (OE) subtype and 2 cases with undetermined etiology (UE) subtype. The etiological diagnosis profile after HR-MRI scan: 108 cases with LAA subtype, 27 cases with PAD subtype, and 4 cases with OE subtype. Though HR-MRI scan, 18 cases with the initial diagnosis of PAD subtype and 1 case with the initial diagnosis of OE subtype were finally diagnosed with LAA subtype, and 2 cases with the initial diagnosis of UE subtype were finally diagnosed with OE subtype, so the final diagnosis of 21 cases (15.11%) was modified through HR-MRI. Conclusions HR-MRI can clearly show the structure of intracranial vessel wall, which is helpful for clinicians to make accurate diagnosis and treatment for stroke patients.

    The Effect of Inhibitory Repetitive Transcranial Magnetic Stimulation Combined with Mirror Neuron Training System on Chronic Global Aphasia Poststroke
    ZHU Hui-Min, ZHANG Xin-Yan, CHENG Xin-Xin, RAO Jiang,ZHANG Yu, LIU Li
    2021, 16(01):  45-50.  DOI: 10.3969/j.issn.1673-5765.2021.01.008
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    Objective To explore the clinical effect of inhibitory repetitive transcranial magnetic stimulation (rTMS) combined with mirror neuron training system (MNTS) on chronic global aphasia poststroke. Methods 30 patients with chronic global aphasia poststroke at Department of Rehabilitation Medicine of the Affiliated Nanjing Brain Hospital of Nanjing Medical University between January 2018 and January 2020 were prospectively enrolled in this study, and all the patients were randomly divided into control group, MNTS group and combined treatment group, with 10 cases in each group. The control group was only given conventional speech rehabilitation training, the MNTS group was given mirror neuron system training on the basis of the control group, and the combined treatment group was given rTMS stimulation of 1 Hz in the right Broca homologous region on the basis of the MNTS group, with once a day for a week. The 3 groups were evaluated using the western aphasia battery (WAB) and Boston diagnostic aphasia examination (BDAE) before and 3 weeks after treatment. Results There was no statistical difference in the baseline general information and WAB and BDAE scores among the 3 groups before treatment. After treatment, the spontaneous speech (P =0.007), repetition (P =0.027), information content (P =0.009), aphasia quotient of WAB (P =0.041) and BDAE (P =0.012) in combined treatment group were all higher than that in control group, and the spontaneous speech in combined treatment group was better than that in MNTS group (P =0.033). Conclusions Inhibitory rTMS combined with MNTS can significantly improve the language function of patients with chronic global aphasia poststroke.

    Quality Evaluation of Clinical Practice Guidelines for Management of Acute Ischemic Stroke-Associated Pneumonia: A Study Based on AGREE II
    ZHOU Lu, LIU Gao, HE Yi-Xian, CAI En-Li
    2021, 16(01):  51-57.  DOI: 10.3969/j.issn.1673-5765.2021.01.009
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    Objective To evaluate the quality of acute ischemic stroke-associated pneumonia (AISAP) related guidelines, and provide a reference for developing the clinical guidelines for AISAP scientifically and systematically in China. Methods According to the inclusion and exclusion criteria, the domestic and international AISAP related guidelines searched in the database and websites were included in this study. All the guidelines were evaluated for the quality according to the Appraisal of Guidelines for Research and Evaluation Ⅱ (AGREE Ⅱ), and the similarities and differences among the recommendations of the guidelines were analyzed. Results A total of 8 guidelines were included, with 3 Chinese and 5 international ones. The total scores of the six dimensions (scope and purpose, participants in the development of guidelines, rigor, clarity and readability, applicability, and editorial independence) for all the guidelines were 100%, 39.58%, 60.18%, 36.46%, 41.67%, 56.25%, respectively. The Kappa values of the two evaluators for the 8 guidelines were both equal to 0.75 (both P <0.05), with excellent consistency. The class of recommendations of two guidelines was class A — Guidelines for the early management of patients with acute ischemic stroke and Management of patients with stroke: identification and management of dysphagia , with the best quality; the class of five guidelines was class B, and the class of one Chinese guideline was class C, with the worst quality. None of the included guidelines specially developed the best practice recommendations for AISAP management. Conclusions The overall quality of the foreign guidelines was relatively high, and the domestic guidelines were inferior to the foreign ones in many aspects such as the rigor and editorial independence. The biggest problem for the 8 guidelines was that they all did not consider the wishes of the patients. The current domestic and international guidelines mainly focused on stroke or swallowing, with no guideline specially for AISAP.

    The Diagnosis Value of Event-Related Potentials for Cognitive Impairment after Aneurysmal Subarachnoid Hemorrhage
    YAN Jing, LI Zhao-Xia, LIU Li-Juan, ZHANG Lei, PAN Hua, ZHAO Xing-Quan
    2021, 16(01):  58-63.  DOI: 10.3969/j.issn.1673-5765.2021.01.010
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    Objective To evaluate the diagnosis value of event-related potentials N200 and P300 for early cognitive impairment in patients with aneurysmal subarachnoid hemorrhage (aSAH). Methods The aSAH inpatients at Beijing Tiantan Hospital, Capital Medical University between October 2013 and December 2014 were consecutively enrolled in this study, with sex/age-matched healthy subjects as control. All aSAH patients were divided into cognitive impairment group and no cognitive impairment group, according to the cognitive assessment results. MMSE and MoCA were used to evaluate cognitive function and the latency of frontal midline (Fz), central midline (Cz) and parietal midline (Pz) event-related potential N200 and P300 were measured in all subjects. The latency of N200 and P300 among the three groups were compared. The sensitivity and specificity of the diagnosis of N200 and P300 for cognitive impairment of aSAH inpatients were analyzed. In addition, univariate and multivariate analysis were used to identify the independent risk factors for early cognitive impairment in aSAH patients. Results A total of 62 aSAH inpatients were included, with 45 cases (72.6%) in cognitive impairment group, 17 cases (27.4%) in no cognitive impairment group and 30 controls. The P300 latency of Cz, Pz and Fz, N200 latency of Cz and Pz in aSAH patients with or without cognitive impairment were all longer than that in control group, the N200 latency of Fz in aSAH patients with cognitive impairment was longer than that in control group (all P <0.05). The latency of Cz, Pz and Fz P300 and N200 in patients with cognitive impairment were all longer than that in aSAH patients without cognitive impairment (all P <0.05). When the cut-off value range of N200 latency were 257.0-261.0 ms, the corresponding diagnosis sensitivity and specificity range were 67.1%-79.4% and 74.2%-81.5%, respectively. When the cut-off value range of P300 latency were 347.0-349.5 ms, the corresponding diagnosis sensitivity and specificity range were 88.1%-94.0% and 78.9%-82.1%, respectively. Multivariate analysis showed that the lower education degree (OR 1.19, 95%CI 1.02-2.15, P =0.037) and Hunt-Hess grade 3 (OR 1.65, 95%CI 1.05-1.92, P =0.013) were independent risk factors for early cognitive impairment in aSAH patients. Conclusions The event-related potential P300 and N200 can be used as a useful and objective diagnosis tool for detecting early cognitive impairment in aSAH patients.

    Clinical Characteristics of Coronavirus Disease 2019 Patients with a History of Stroke
    ZHANG Hui-Fen, ZHA Lu-Lu, WANG Dong-Ya, CHEN Rui, ZHU Le-Ying, HU Cai-Xia
    2021, 16(01):  64-68.  DOI: 10.3969/j.issn.1673-5765.2021.01.011
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    Objective To describe the clinical characteristics of the coronavirus disease 2019 (COVID-19) patients with a history of stroke, to improve clinical treatment efficacy. Methods The COVID-19 patients with a history of stroke from Wuhan Huoshenshan Hospital were included in this retrospective study. All patients were divided into common type group and severe type group, according to the clinical classification criteria of diagnosis and treatment of COVID-19 (revised version 5). The medical history, clinical manifestation, complications and laboratory examination of two groups were analyzed. Results A total of eligible 60 patients were included, with 31 cases in common type group and 29 cases in severe type group. In terms of clinical outcomes, 54 cases were cured, 3 cases were transferred for further treatment, and 3 cases died. Compared to the common patients, the severe patients were more prone to develop respiratory failure (20.7% vs 3.2%, P =0.049), acute myocardial injury (17.2% vs 0, P =0.022) and other complications. In terms of laboratory examination, the levels of D dimer, lactate dehydrogenase and CRP in severe patients were higher than that in common patients, and the above differences were all statistically significant. Increased neutrophil count (OR 1.799, 95%CI 1.208-2.678, P =0.004) and reduced lymphocyte count (OR 0.038, 95%CI 0.004-0.359, P =0.004) were independent risk factors for severe pneumonia. Conclusions COVID-19 patients with a history of stroke had more underlying diseases. Increased neutrophil count and decreased lymphocyte count are independent risk factors for severe pneumonia.

    Acute Intermittent Porphyria with Cerebral Infarction as the First Presentation: A Case Report
    GAO Pan,CHEN Xiao-Wu, LI Fang-Ming, WANG Lin-Lin, ZHANG Hong-Ya
    2021, 16(01):  69-72.  DOI: 10.3969/j.issn.1673-5765.2021.01.012
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    Rare Stroke Mimics in Nervous System
    YIN Wei-Bing, YANG Jing
    2021, 16(01):  73-76.  DOI: 10.3969/j.issn.1673-5765.2021.01.013
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    Intravenous Thrombolysis for Acute Cerebral Embolism in Dilated Cardiomyopathy: A Case Report
    QU Yang,WEI Xiang-Yang, WANG Xiao-Li, WANG Yi
    2021, 16(01):  77-80.  DOI: 10.3969/j.issn.1673-5765.2021.01.014
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    Progress of N6-Methyladenosine Modification in Cardiovascular and Cerebrovascular Diseases
    YE Wei-Zhen,LIU Xiang-Rong
    2021, 16(01):  81-86.  DOI: 10.3969/j.issn.1673-5765.2021.01.015
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    N6-methyladenosine (m6A) is the most abundant epigenetic modification of RNA. In addition to the characteristics and function of m6A modification and related regulatory proteins m6A methyltransferases, m6A demethylases and m6A binding proteins, this article mainly reviewed the recent research progress and roles of m6A modification in the risk factors of cardiovascular and cerebrovascular diseases such as hypertension and diabetes.

    Advances in Application of Territorial Arterial Spin Labeling in Ischemic Cerebrovascular Disease
    XING Zhang-Li, XUE Yun-Jing
    2021, 16(01):  87-91.  DOI: 10.3969/j.issn.1673-5765.2021.01.016
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    Territorial ASL (t-ASL) is a novel magnetic resonance perfusion technique, different from 3D-ASL, it can label the artery of interest to show the specific perfusion area and further evaluate the state of cerebral blood flow. In the clinical management of ischemic cerebrovascular disease, t-ASL can be applied in several aspects such as culprit artery identification, collateral circulation assessment, perioperative management and etc. Thus this article reviewed the advances in the application of t-ASL in the above aspects.

    The Role of Neuroinflammation in Early Brain Injury after Aneurysmal Subarachnoid Hemorrhage
    LIAO Yi-Fei,ZHANG Hui, ZOU Liang-Yu
    2021, 16(01):  92-96.  DOI: 10.3969/j.issn.1673-5765.2021.01.017
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    Early brain injury (EBI) is one of the important factors affecting the prognosis of patients with aneurysmal subarachnoid hemorrhage (aSAH). At present, the mechanism of EBI after aSAH is not clear, and neuroinflammation may be the main driving factor. Its mechanism includes that red blood cell degradation products and activated microglia induce neuroinflammation and promote neuronal apoptosis; neuroinflammation activates astrocytes to destroy the blood-brain barrier, leading to brain edema, and recruits peripheral neutrophils to adhere to the intracranial microvasculature, causing microvascular dysfunction, and leading to insufficient cerebral cortex perfusion. The novel drugs targeted at neuroinflammation to prevent EBI may be a new direction for the current treatment of aSAH.

    Analysis on Effectiveness of Online Teaching for Cerebrovascular Disease Residents during the Coronavirus Disease 2019 Pandemic
    YUAN Xue-Jiao, REN Yi
    2021, 16(01):  97-100.  DOI: 10.3969/j.issn.1673-5765.2021.01.018
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    Objective To evaluate the effectiveness of online training of coronavirus disease 2019 (COVID-19) control for cerebrovascular disease (CVD) residents, summarize the online teaching processes during the pandemic, and offer reference for normalized online teaching. Methods Online training was conducted for all CVD residents in our hospital during the pandemic, with the training contents including the following aspects: clinical skills, clinical knowledge, COVID-19 prevention and control, diagnosis and treatment, patients visit and treatment workflow. The effectiveness of online training was evaluated by comparing the test scores before and after the training. Results A total of 189 residents were trained through online courses and evaluated. The evaluation results showed that the total score and the scores of the above aspects after the training were all higher than that before the training (all P <0.001). The generalized equation model analysis result showed the total score after the training was 9.14 (95%CI 7.22-11.06) points higher than that before the training (P <0.001), after adjusting for education, degree and etc. Conclusions The online courses for CVD residents contributed to improving response to the COVID-19. The educators should balance the benefits and shortcomings of online courses to guarantee the quality of medical teaching.