Oculomotor nerve palsy limits the specific direction eyeball movement, and represents diplopia, mydriasis, and ptosis. The vascular-associated etiologies of oculomotor nerve palsy are the microvascular ischemia due to hypertension or diabetes, or compression of the nerve by the aneurysm. For the aneurysm, if not treated properly, it may result in mortality or severe neurological impairment. Thorough history taking, physical examinations, and proper imaging modality are needed to make an accurate diagnosis. A 76-year-old female with decreased mentality and anisocoria presented at our emergency department. An 83-year-old female presented with right ptosis and lateral-side deviated of the right eyeball. No definite lesion was noted on the initial non-contrast brain computed tomography (CT) and magnetic resonance imaging diffusion. An aneurysm was detected on CT angiography taken several hours later in the former patient. For the latter patient, a giant aneurysm was detected on magnetic resonance angiography that had been performed at another hospital 4 days earlier. These two patients underwent transfemoral cerebral angiography with coiling. They were discharged with no neurological sequelae.
Aged ; Aged, 80 and over ; Aneurysm ; Angiography ; Anisocoria ; Brain ; Carotid Artery, Internal ; Cerebral Angiography ; Diagnosis ; Diffusion ; Diplopia ; Emergency Service, Hospital ; Female ; Humans ; Hypertension ; Ischemia ; Magnetic Resonance Angiography ; Magnetic Resonance Imaging ; Mortality ; Mydriasis ; Oculomotor Nerve Diseases ; Oculomotor Nerve ; Physical Examination

OBJECTIVETo investigate the current status of the application of H-magnetic resonance spectroscopy (H-MRS) in neonates with hypoxic-ischemic encephalopathy (HIE), and to describe the trend of research in the field.

METHODSPubMed, EMBASE, and Web of Science were searched for English articles published up to January 10, 2018, with the combination of key words and MeSH terms. The articles were screened according to inclusion and exclusion criteria. Excel 2016, Bicomb 2.0, and VOSviewer1.6.6 were used to analyze the key words, to perform a cluster analysis of hot words, and to plot the knowledge map.

RESULTSA total of 66 articles were included, and 27 high-frequency key words were extracted. The results showed that H-MRS was mainly used in four directions of the clinical practice and scientific research on HIE. In clinical practice, H-MRS attracted wide attention as a clinical examination for HIE and a tool for prognostic evaluation; in scientific research, H-MRS was used in animal experiments and studies associated with mild hypothermia therapy.

CONCLUSIONSAs an auxiliary means of magnetic resonance imaging, H-MRS plays an important role in investigating the pathogenesis of neonatal HIE, improving existing therapies, and evaluating the prognosis of neonates with HIE.

Female ; Humans ; Hypoxia-Ischemia, Brain ; diagnosis ; diagnostic imaging ; Infant, Newborn ; Infant, Newborn, Diseases ; diagnosis ; diagnostic imaging ; Magnetic Resonance Imaging ; methods ; Male

A 68-year-old man presented with a three-week history of rapidly progressive dementia, gait ataxia and myoclonus. Subsequent electroencephalography showed periodic sharp wave complexes, and cerebrospinal fluid assay revealed the presence of a 14-3-3 protein. A probable diagnosis of sporadic Creutzfeldt-Jakob disease was made, which was further supported by magnetic resonance (MR) imaging of the brain showing asymmetric signal abnormality in the cerebral cortices and basal ganglia. The aetiology, clinical features, diagnostic criteria, various MR imaging patterns and radiologic differential diagnosis of sporadic Creutzfeldt-Jakob disease are discussed in this article.
Aged ; Brain ; pathology ; Cerebral Cortex ; Cerebrospinal Fluid ; metabolism ; Creutzfeldt-Jakob Syndrome ; diagnostic imaging ; Dementia ; physiopathology ; Diagnosis, Differential ; Diffusion Magnetic Resonance Imaging ; Electroencephalography ; Humans ; Hypoxia-Ischemia, Brain ; diagnostic imaging ; Male ; Prion Diseases ; physiopathology

A previously healthy, 3-year-old boy presented to the emergency department with an afebrile focal motor seizure. He was found crying and having a seizure 30 minutes earlier. During this seizure, he was jerking his head and right extremities. Subsequent magnetic resonance imaging showed acute infarction in the bilateral frontal lobes, chiefly in the left. After hospitalization, conventional angiography demonstrated bilateral stenosis of the distal internal carotid arteries with development of lenticulostriate collaterals, which confirmed the diagnosis of moyamoya disease. It is vital to recognize focal motor seizures and situations related to hyperventilation in children with a seizure, which imply a structural lesion and a provoked cerebral ischemia in preexisting moyamoya disease, respectively.
Angiography ; Brain Ischemia ; Carotid Artery, Internal ; Child ; Child, Preschool ; Constriction, Pathologic ; Crying ; Diagnosis ; Emergencies ; Emergency Service, Hospital ; Extremities ; Frontal Lobe ; Head ; Hospitalization ; Humans ; Hyperventilation ; Infarction ; Ischemia ; Magnetic Resonance Imaging ; Male ; Moyamoya Disease ; Seizures ; Stroke ; Vasoconstriction

BACKGROUND: Neuroimaging can play a crucial role in discovering potential abnormalities to cause secondary headache. There has been a progress in the fields of headache diagnosis and neuroimaging in the past two decades. We sought to investigate neuroimaging findings according to headache disorders, age, sex, and imaging modalities in first-visit headache patients. METHODS: We used data of consecutive first-visit headache patients from 9 university and 2 general referral hospitals. The International Classification of Headache Disorders, third edition, beta version was used in headache diagnosis. We finally enrolled 1,080 patients undertook neuroimaging in this study. RESULTS: Among 1,080 patients (mean age: 47.7±14.3, female: 60.8%), proportions of headache diagnosis were as follows: primary headaches, n=926 (85.7%); secondary headaches, n=110 (10.2%); and cranial neuropathies and other headaches, n=43 (4.1%). Of them, 591 patients (54.7%) received magnetic resonance imaging (MRI). Neuroimaging abnormalities were found in 232 patients (21.5%), and their proportions were higher in older age groups and male sex. Chronic cerebral ischemia was the most common finding (n=88, 8.1%), whereas 76 patients (7.0%) were found to have clinically significant abnormalities such as primary brain tumor, cancer metastasis, and headache-relevant cerebrovascular disease. Patients underwent MRI were four times more likely to have neuroimaging abnormalities than those underwent computed tomography (33.3% vs. 7.2%, p <0.001). CONCLUSIONS: In this study, the findings of neuroimaging differed according to headache disorders, age, sex, and imaging modalities. MRI can be a preferable neuroimaging modality to identify potential causes of headache.
Brain Ischemia ; Brain Neoplasms ; Cerebrovascular Disorders ; Classification ; Cranial Nerve Diseases ; Diagnosis ; Female ; Headache Disorders ; Headache ; Humans ; Magnetic Resonance Imaging ; Male ; Neoplasm Metastasis ; Neuroimaging ; Referral and Consultation

Despite advancements in treating ruptured cerebral aneurysms, an aneurysmal subarachnoid hemorrhage (aSAH) is still a grave cerebrovascular disease associated with a high rate of morbidity and mortality. Based on the literature published to date, worldwide academic and governmental committees have developed clinical practice guidelines (CPGs) to propose standards for disease management in order to achieve the best treatment outcomes for aSAHs. In 2013, the Korean Society of Cerebrovascular Surgeons issued a Korean version of the CPGs for aSAHs. The group researched all articles and major foreign CPGs published in English until December 2015 using several search engines. Based on these articles, levels of evidence and grades of recommendations were determined by our society as well as by other related Quality Control Committees from neurointervention, neurology and rehabilitation medicine. The Korean version of the CPGs for aSAHs includes risk factors, diagnosis, initial management, medical and surgical management to prevent rebleeding, management of delayed cerebral ischemia and vasospasm, treatment of hydrocephalus, treatment of medical complications and early rehabilitation. The CPGs are not the absolute standard but are the present reference as the evidence is still incomplete, each environment of clinical practice is different, and there is a high probability of variation in the current recommendations. The CPGs will be useful in the fields of clinical practice and research.
Aneurysm ; Brain Ischemia ; Cerebrovascular Disorders ; Diagnosis ; Disease Management ; Hydrocephalus ; Intracranial Aneurysm ; Mortality ; Neurology ; Quality Control ; Rehabilitation ; Risk Factors ; Search Engine ; Subarachnoid Hemorrhage ; Surgeons

OBJECTIVE: Diagnosing acute cerebral infarction is crucial in determining prognosis of stroke patients. Although many serologic tests for prompt diagnosis are available, the clinical application of serologic tests is currently limited. We investigated whether S100β, matrix metalloproteinase-9 (MMP-9), D-dimer, and heat shock protein 70 (HSP70) can be used as biomarkers for acute cerebral infarction.METHODS: Focal cerebral ischemia was induced using the modified intraluminal filament technique. Mice were randomly assigned to 30-minute occlusion (n=10), 60-minute occlusion (n=10), or sham (n=5) groups. Four hours later, neurological deficits were evaluated and blood samples were obtained. Infarction volumes were calculated and plasma S100β, MMP-9, D-dimer, and HSP70 levels were measured using enzyme-linked immunosorbent assay.RESULTS: The average infarction volume was 12.32±2.31 mm³ and 46.9±7.43 mm³ in the 30- and 60-minute groups, respectively. The mean neurological score in the two ischemic groups was 1.6±0.55 and 3.2±0.70, respectively. S100β, MMP-9, and HSP70 expressions significantly increased after 4 hours of ischemia (p=0.001). Furthermore, S100β and MMP-9 expressions correlated with infarction volumes (p < 0.001) and neurological deficits (p < 0.001). There was no significant difference in D-dimer expression between groups (p=0.843). The area under the receiver operating characteristic curve (AUC) showed high sensitivity and specificity for MMP-9, HSP70 (AUC=1), and S100β (AUC=0.98).CONCLUSION: S100β, MMP-9, and HSP70 can complement current diagnostic tools to assess cerebral infarction, suggesting their use as potential biomarkers for acute cerebral infarction.
Animals ; Biomarkers ; Brain Ischemia ; Cerebral Infarction ; Complement System Proteins ; Diagnosis ; Enzyme-Linked Immunosorbent Assay ; Heat-Shock Proteins ; Hot Temperature ; HSP70 Heat-Shock Proteins ; Humans ; Infarction ; Ischemia ; Matrix Metalloproteinase 9 ; Mice ; Plasma ; Prognosis ; ROC Curve ; Sensitivity and Specificity ; Serologic Tests ; Stroke

Under the theoretical guidance of "combination of disease and syndrome， correspondence between syndrome and prescription， and dynamic space-time"， 11 135 acute ischemic stroke patients were collected from hospital information system(HIS) of many 3A grade hospitals of traditional Chinese medicine. Complex network analysis was adopted to obtain the core syndrome elements in different periods of acute ischemic stroke patients， and it was found that the core syndrome elements were blood stasis syndrome， phlegm， endogenous wind， Yin deficiency， Qi deficiency， heat， hyperactivity of liver Yang， liver， and kidney of patients in hospital for the first day， and during 8-14 d in hospitalization， the core syndrome elements were blood stasis， phlegm， Yin deficiency， Qi deficiency， endogenous wind， hyperactivity of liver Yang， liver， and kidney. The data with "improved" and "cured" treatment outcomes were adopted for complex network analysis and correlation analysis to identify the Chinese and Western medicine group modules in patients with different disease conditions in different phases after hospitalization. It was found that the Chinese and Western medicine modules within 14 d after hospitalization mainly included "blood-activating and stasis-dissolving module "consisted by "anti-platelet drug + circulation-improving medicine(or anticoagulant drug and anti-fibrinogen drug， et al) + blood-activating and stasis-dissolving drugs"， as well as "stasis-dissolving and phlegm-reducing module" consisted by "anti-platelet drugs + circulation-improving medicine(or anticoagulant drug and anti-fibrinogen drug， et al) + phlegm refreshing drug". The core Chinese and Western medicine modules in patients with urgent and general conditions within 7 d after hospitalization mainly used "blood-activating and stasis-dissolving module" and "stasis-dissolving and phlegm-reducing module". Three or more Chinese medicine and Western medicines module with more than 1% utilization rate was not found in the patients with critical disease condition in admission. The urgent， general and critically ill patients in admission mainly used "blood-activating and stasis-dissolving module" in 8-14 d. From the real world medical big data research， it was found that the combined use of Chinese and Western medicines were consistent with "combination of disease and syndrome， correspondence between syndrome and prescription， and dynamic space-time" theory， and multiple multidimensional dynamic Chinese medicine and Western medicine group modules of "patient-syndrome-drug-time-effective" at the acute ischemic stroke stage were dug out， forming the method of Chinese and Western medicine combination research based on electrical medical big data.
Brain Ischemia ; diagnosis ; therapy ; Humans ; Medicine, Chinese Traditional ; Stroke ; diagnosis ; therapy ; Syndrome ; Yin Deficiency

OBJECTIVE: To describe CT and clinical findings of pulmonary artery intimal sarcoma (PAIS) compared with those of pulmonary thromboembolism (PTE), to investigate MRI and positron emission tomography (PET)-CT findings of PAIS, and to evaluate the effect of delayed diagnosis of PAIS on survival outcomes. MATERIALS AND METHODS: Twenty-six patients with PAIS were retrospectively identified and matched for sex, with patients with PTE at a ratio of 1:2. CT and clinical findings of the two groups were compared using Student's t test or chi-square test. The effect of delayed diagnosis on survival was investigated using Kaplan-Meier analysis. RESULTS: The most common tumor pattern in PAIS was tumoral impaction. Heterogeneous attenuation, wall eclipse signs, intratumoral vessels, acute interphase angles, single location, presence of lung ischemia, and central location were significantly more common in PAIS than in PTE (all p < 0.01). Levels of D-dimers and brain natriuretic peptide were lower in PAIS than in PTE (p < 0.05). In three patients of PAIS, long inversion time sequence MRI showed intermingled dark signal intensity foci suggestive of intermingled thrombi. All nine patients who had undergone PET-CT displayed hypermetabolism. Diagnosis was delayed in 42.3% of the PAIS patients and those patients had a significantly shorter overall survival than patients whose diagnosis was not delayed (p < 0.05). CONCLUSION: The characteristic CT and clinical findings of PAIS may help achieve early diagnosis of PAIS and make better survival outcomes of patients. MRI and PET-CT can be used as second-line imaging modalities and could help distinguish PAIS from PTE and to plan clinical management.
Delayed Diagnosis ; Diagnosis ; Early Diagnosis ; Humans ; Interphase ; Ischemia ; Kaplan-Meier Estimate ; Lung ; Magnetic Resonance Imaging ; Natriuretic Peptide, Brain ; Positron-Emission Tomography ; Pulmonary Artery* ; Pulmonary Embolism ; Retrospective Studies ; Sarcoma* ; Thromboembolism*

BACKGROUND AND OBJECTIVES: Sudden sensorineural hearing loss (S-SNHL) occurs abruptly, developing rapidly within 3 days. The criteria for the diagnosis of S-SNHL are idiopathic hearing loss of at least 30 dB over at least three serial test frequencies. This study estimated whether S-SNHL increases the risk of stroke using Korean National Health Insurance Service National Sample Cohort (NHIS-NSC 2002-2013) data. SUBJECTS AND METHOD: Among NHIS-NSC 2002-2013, we excluded the patients diagnosed as S-SNHL or stroke in 2002. The patients who were diagnosed and treated as S-SNHL (n=2510) and the comparison group (n=12550) extracted using propensity score matching were enrolled. During an 11-year follow-up period until December 2013, the incidence of stroke among two groups was analyzed and the result was adjusted for the impact of comorbidities such as hypertension, diabetes, and chronic kidney disease with Cox proportional hazard regression. RESULTS: According to our data, 10.8% of S-SNHL patients (among 2510) and 7.8% of the comparison group (among 12550) had strokes. Stroke incidence was reported higher in patients with history of S-SNHL compared to the comparison group [hazard (HR), 1.15; 95% confidence interval (CI), 1.01-1.32] followed by patients with hypertension (HR, 2.51; 95% CI, 2.22-2.84), diabetes mellitus (HR, 1.62; 95% CI, 1.43-1.85). In terms of the type of strokes, S-SNHL increased the risk of ischemic stroke (HR, 1.18; 95% CI, 1.02-1.37). CONCLUSION: S-SNHL appeared to be associated with an increased risk of developing stroke after adjusting for other risk factors.
Brain Ischemia ; Cohort Studies ; Comorbidity ; Diabetes Mellitus ; Diagnosis ; Follow-Up Studies ; Hearing Loss ; Hearing Loss, Sensorineural* ; Hearing Loss, Sudden ; Humans ; Hypertension ; Incidence ; Intracranial Hemorrhages ; Methods ; National Health Programs ; Propensity Score ; Renal Insufficiency, Chronic ; Risk Factors ; Stroke*