Acute mountain sickness (AMS) occurs commonly in hikers who are rapidly exposed to high altitude environments. Despite the numerous reports of AMS, few studies have reported pallidal lesions associated with altitude sickness. A previously healthy 49-yr-old Korean patient, after ascent to 4,700 m, suffered symptoms consistent with AMS. After returning home, the patient showed changes in personality characterized by abulia, indifference, and indecisiveness. T2 weighted brain magnetic resonance imaging showed high signal lesions involving bilateral globus pallidus. Our case suggests that globus pallidus injury should be included in the differential diagnosis of patients with personality or cognitive change after recovery from AMS.
Altitude ; Altitude Sickness/*complications ; Behavior ; Brain/pathology ; Brain Damage, Chronic/*etiology/pathology ; Environment ; Globus Pallidus/*pathology ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Mountaineering

OBJECTIVETo compare the clinical outcome of transforaminal lumbar interbody fusion (TLIF) and posterior lumbar interbody fusion (PLIF) with pedicle screw fixation on the treatment of spondylolisthesis.

METHODSOne hundred and twenty patients with spondylolisthesis who were managed in our department were retrospectively evaluated. They were categorized into TLIF group and PLIF group according to the surgical methods, with 60 cases in each group. The slippage rate, the height of intervertebral space and intervertebral foramen were measured in each patient before and after operation and were compared between the two groups correspondingly. The interbody fusion rate, JOA score and complications after operation were also determined.

RESULTSAll the 120 patients were followed up for an average of 23 months (range, 16 to 35 months). Interbody bony fusion was achieved in every case and cage excursion or subsidence occurred in not any case. JOA score was rated as good or excellent in 83.3% of the TLIF cases and in 81.7% of the PLIF cases. There were no difference between the two groups (P > 0.05). Postoperative slippage rate was significantly less than preoperative ones in both groups (P < 0.01). No difference in lost of reduction at the final follow-up was found between TLIF and PLIF groups (P > 0.05). Significant increases in the height of intervertebral space and intervertebral foramen after operation were approved in both groups (P < 0.01), but no difference in these increases was confirmed between the two groups (P > 0.05). The lost of the height of intervertebral space and intervertebral foramen at the final follow-up were also similar between the two groups (P > 0.05).

CONCLUSIONSTLIF and PLIF are good methods for the treatment of spondylolisthesis, both leading to satisfactory clinical outcomes. However, TLIF is relatively safer owing to its unilateral approach for interbody fusion.

Adult ; Aged ; Bone Transplantation ; methods ; Female ; Follow-Up Studies ; Humans ; Lumbar Vertebrae ; Male ; Middle Aged ; Retrospective Studies ; Spinal Fusion ; methods ; Spondylolysis ; surgery ; Treatment Outcome

BACKGROUND: Neglect dyslexia is a type of neglect syndrome, in which patients with unilateral hemisphere injury omit or misread the contralateral side of a text or the initial letters of a word. Hangul can be arrayed vertically (vertical reading, VR) as well as horizontally (horizontal reading, HR). Thus, HR and VR can be differentially affected in neglect dyslexia. We conducted an experiment in a 66 year-old woman who suffered from neglect dyslexia after a right cerebral infarction. We compared HR with VR in terms of error frequencies and patterns. METHODS: Stimuli for neglect dyslexia consisted of 227 words. The 227 words were written horizontally or vertically (total 554 words) and were pre-sented in random order. The patient was asked to read the words and the examiner recorded the patient's responses and reaction times. RESULTS: The differences in HR and VR were as follows: 1) the error frequency in HR (59.0%) was higher than the error frequency in VR (20.3%), 2) the most frequent error in HR was syllabic deletion (79.1%) whereas phonemic substitution (89.1%) predominated in VR, 3) the error rate was highest at the first syllabic position in HR whereas no position effect was noted in VR. CONCLUSIONS: Patients with neglect dyslexia make less error in VR than in HR. The neural processing of HR may be different from that of VR. VR may be an alternative reading strategy that may be useful during the recovery stage of neglect dyslexia.
Aged ; Cerebral Infarction ; Dyslexia* ; Female ; Humans ; Reaction Time

INTRODUCTION: Child sexual abuse (CSA) adversely affects a child's growth and well-being. This study aimed to describe the profile of children presenting to a tertiary paediatric emergency department(ED) with CSA. METHODS: Children 0-16 years old presenting to KK Women's and Children's Hospital ED from June 2016 to August 2020 with sexual abuse were retrospectively reviewed. We performed a secondary analysis on girls and stratified them by age <13 and ≥13 years old. RESULTS: There were 790 patients who made 833 visits for CSA. Victims were predominantly girls (747, 94.8%) and perpetrators were predominantly men (763, 96.6%). The abuse first occurred before the age of 13 years in 315 victims (39.9%). For 468 (59.2%), more than one incident occurred before presentation. Compared to girls ≥13 years old, girls <13 years old were more frequently abused by a family member (47.7% versus 8.0%, CONCLUSION The findings highlight common characteristics of CSA cases, and can aid the future identification and protection of vulnerable children. The fact that most children presented after more than one incident suggests the need to more closely monitor and protect potentially at-risk children.
Adolescent ; Child ; Child Abuse ; Child Abuse, Sexual ; Child, Preschool ; Emergency Service, Hospital ; Female ; Humans ; Infant ; Infant, Newborn ; Male ; Parents ; Retrospective Studies

The original version of this article contained wrong information of an author which should be changed.

BACKGROUND AND PURPOSE: Only a few studies have investigated the relationship between different subtypes and disease progression or prognosis in patients with behavioral variant frontotemporal dementia (bvFTD). Since a localized injury often produces more focal signs than a diffuse injury, we hypothesized that the clinical characteristics differ between patients with bvFTD who show diffuse frontal lobe atrophy (D-type) on axial magnetic resonance imaging (MRI) scans versus those with focal or circumscribed frontal lobe atrophy (F-type). METHODS: In total, 94 MRI scans (74 scans from bvFTD and 20 scans from age-matched normal controls) were classified into 35 D- and 39 F-type bvFTD cases based on an axial MRI visual rating scale. We compared baseline clinical characteristics, progression in motor and cognitive symptoms, and survival times between D- and F-types. Survival analyses were performed for 62 of the 74 patients. RESULTS: While D-type performed better on neuropsychological tests than F-type at baseline, D-type had higher baseline scores on the Unified Parkinson's Disease Rating Scale (UPDRS) Part III. Evaluations of motor progression showed that the disease duration with motor symptoms was shorter in D-type than F-type. Moreover, the survival time was shorter in D-type (6.9 years) than F-type (9.4 years). Cox regression analyses revealed that a high UPDRS Part III score at baseline contributed to an increased risk of mortality, regardless of the pattern of atrophy. CONCLUSIONS: The prognosis is worse for D-type than for those with F-type. Shorter survival in D-type may be associated with the earlier appearance of motor symptoms.
Atrophy* ; Disease Progression ; Frontal Lobe ; Frontotemporal Dementia* ; Frontotemporal Lobar Degeneration ; Humans ; Magnetic Resonance Imaging ; Mortality ; Neurobehavioral Manifestations ; Neuropsychological Tests ; Parkinson Disease ; Prognosis*

BACKGROUND AND PURPOSE: Cerebral small vessel disease (CSVD) is the most common cause of vascular dementia and a major contributor to mixed dementia. CSVD is characterized by progressive cerebral white matter changes (WMC) due to chronic low perfusion and loss of autoregulation. In addition to its antiplatelet effect, cilostazol exerts a vasodilating effect and improves endothelial function. This study aims to compare the effects of cilostazol and aspirin on changes in WMC volume in CSVD.METHODS: The comparison study of Cilostazol and aspirin on cHAnges in volume of cerebral smaLL vEssel disease white matter chaNGEs (CHALLENGE) is a double blind, randomized trial involving 19 hospitals across South Korea. Patients with moderate or severe WMC and ≥ 1 lacunar infarction detected on brain magnetic resonance imaging (MRI) are eligible; the projected sample size is 254. Participants are randomly assigned to a cilostazol or aspirin group at a 1:1 ratio. Cilostazol slow release 200 mg or aspirin 100 mg are taken once daily for 2 years. The primary outcome measure is the change in WMC volume on MRI from baseline to 104 weeks. Secondary imaging outcomes include changes in the number of lacunes and cerebral microbleeds, fractional anisotropy and mean diffusivity on diffusion tensor imaging, and brain atrophy. Secondary clinical outcomes include all ischemic strokes, all vascular events, and changes in cognition, motor function, mood, urinary symptoms, and disability.CONCLUSIONS: CHALLENGE will provide evidence to support the selection of long-term antiplatelet therapy in CSVD.TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT01932203
Anisotropy ; Aspirin ; Atrophy ; Brain ; Cerebral Small Vessel Diseases ; Cognition ; Dementia ; Dementia, Vascular ; Diffusion Tensor Imaging ; Homeostasis ; Humans ; Korea ; Magnetic Resonance Imaging ; Outcome Assessment (Health Care) ; Perfusion ; Sample Size ; Stroke ; Stroke, Lacunar ; White Matter

BACKGROUND AND PURPOSE: Visual assessment of medial temporal-lobe atrophy (MTA) has been quick, reliable, and easy to apply in routine clinical practice. However, one of the limitations in visual assessments of MTA is the lack of widely accepted age-adjusted norms and cutoff scores for MTA for a diagnosis of Alzheimer's disease (AD). This study aimed to determine the optimal cutoff score on a T1-weighted axial MTA Visual Rating Scale (VRS) for differentiating patients with AD from cognitively normal elderly people. METHODS: The 3,430 recruited subjects comprising 1,427 with no cognitive impairment (NC) and 2003 AD patients were divided into age ranges of 50–59, 60–69, 70–79, and 80–89 years. Of these, 446 participants (218 in the NC group and 228 in the AD group) were chosen by random sampling for inclusion in this study. Each decade age group included 57 individuals, with the exception of 47 subjects being included in the 80- to 89-year NC group. The scores on the T1-weighted axial MTA VRS were graded by two neurologists. The cutoff values were evaluated from the area under the receiver operating characteristic curve. RESULTS: The optimal axial MTA VRS cutoff score from discriminating AD from NC increased with age: it was ≥as ≥1, ≥2, and ≥3 in subjects aged 50–59, 60–69, 70–79, and 80–89 years, respectively (all p < 0.001). CONCLUSIONS: These results show that the optimal cutoff score on the axial MTA VRS for diagnosing of AD differed according to the decade age group. This information could be of practical usefulness in the clinical setting.
Aged ; Alzheimer Disease* ; Atrophy* ; Cognition Disorders ; Dementia* ; Diagnosis ; Humans ; Korea* ; Pemetrexed ; ROC Curve

Background: and Purpose Recent studies suggested an increased incidence of cerebral venous thrombosis (CVT) during the coronavirus disease 2019 (COVID-19) pandemic. We evaluated the volume of CVT hospitalization and in-hospital mortality during the 1st year of the COVID-19 pandemic compared to the preceding year. Methods: We conducted a cross-sectional retrospective study of 171 stroke centers from 49 countries. We recorded COVID-19 admission volumes, CVT hospitalization, and CVT in-hospital mortality from January 1, 2019, to May 31, 2021. CVT diagnoses were identified by International Classification of Disease-10 (ICD-10) codes or stroke databases. We additionally sought to compare the same metrics in the first 5 months of 2021 compared to the corresponding months in 2019 and 2020 (ClinicalTrials.gov Identifier: NCT04934020). Results: There were 2,313 CVT admissions across the 1-year pre-pandemic (2019) and pandemic year (2020); no differences in CVT volume or CVT mortality were observed. During the first 5 months of 2021, there was an increase in CVT volumes compared to 2019 (27.5%; 95% confidence interval [CI], 24.2 to 32.0; P<0.0001) and 2020 (41.4%; 95% CI, 37.0 to 46.0; P<0.0001). A COVID-19 diagnosis was present in 7.6% (132/1,738) of CVT hospitalizations. CVT was present in 0.04% (103/292,080) of COVID-19 hospitalizations. During the first pandemic year, CVT mortality was higher in patients who were COVID positive compared to COVID negative patients (8/53 [15.0%] vs. 41/910 [4.5%], P=0.004). There was an increase in CVT mortality during the first 5 months of pandemic years 2020 and 2021 compared to the first 5 months of the pre-pandemic year 2019 (2019 vs. 2020: 2.26% vs. 4.74%, P=0.05; 2019 vs. 2021: 2.26% vs. 4.99%, P=0.03). In the first 5 months of 2021, there were 26 cases of vaccine-induced immune thrombotic thrombocytopenia (VITT), resulting in six deaths. Conclusions During the 1st year of the COVID-19 pandemic, CVT hospitalization volume and CVT in-hospital mortality did not change compared to the prior year. COVID-19 diagnosis was associated with higher CVT in-hospital mortality. During the first 5 months of 2021, there was an increase in CVT hospitalization volume and increase in CVT-related mortality, partially attributable to VITT.