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Purpose@#The mean platelet volume (MPV) is regarded as a marker for thrombosis, atherosclerosis, and inflammation in various vascular diseases. However, it still remains unclear whether plasma MPV is associated with cerebral white matter hyperintensities (WMH) and cerebral microvascular pathology in the elderly population. @*Materials and Methods@#We examined whether MPV level is associated with the presence of cerebral WMH on brain magnetic resonance imaging from 870 non-stroke outpatient subjects. The subjects were divided into three groups according to the consecutive level of MPV (low T1, middle T2, and high T3 MPV tertile groups). To determine the association of MPV levels with the WMH, logistic regression and receiver operating characteristic curve analyses were conducted. @*Results@#Subjects with higher MPV level were older and more likely to have hypertension, diabetes mellitus, and low renal function. Cerebral WMH were more prevalent in subjects with higher MPV level. After adjusting for confounding factors, moderate to severe cerebral WMH were significantly associated with high MPV tertile level. This association remained significant after adjusting for other cerebral vascular pathologies. T2 [odds ratio (OR): 1.49, 95% confidence interval (CI): 1.03–2.15] and T3 MPV tertile groups (OR: 1.51, 95%CI: 1.04–2.20) had more cerebral WMH lesions compared to T1 MPV tertile group. In addition, the subjects with higher Fazekas scores showed higher MPV level (p=0.020). @*Conclusion@#We found that high MPV level is independently associated with cerebral WMH. This result suggests that platelet activation plays a role in the development of cerebral WMH.
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Background@#and PurposeEpilepsy increases the risk of death in affected individuals of any age. We aimed to determine the mortality caused by epilepsy and its time trends in Korea. @*Methods@#We obtained population and cause of death data between 1993 and 2019 from Statistics Korea. We identified death caused by epilepsy or status epilepticus. We calculated the crude mortality rate (CMR), age-specific mortality rate, age-standardized mortality rate (ASMR, corresponding to epilepsy-related deaths per 100,000 persons in the general population), and the proportional mortality (PM, corresponding to the proportion of epilepsy-related deaths among all-cause deaths). @*Results@#In 2019, 471 deaths were caused by epilepsy (CMR=0.92), accounting for 0.16% of all deaths in that year. The age-specific mortality rate increased with age, up to 7.01% among individuals aged 80 years and older, while the PM was the highest (3.80%) among individuals aged 5–14 years, which decreased with age. Between 1993 and 2019, the CMR, ASMR, and PM peaked in 2002, and the CMR then rebounded after the trough in this trend in 2011 while the ASMR continued to decrease, and the PM became relatively stable from 2011. Starting in 2005, the age-specific mortality rate for epilepsy had an increasing tendency over time among those aged 75 years or older, and a decreasing tendency in the younger age groups. @*Conclusions@#A declining tendency of mortality from epilepsy was found in the overall population of Korea over recent decades. However, epilepsy is a notable cause of death in children, and epilepsy-related mortality is increasing in the elderly population.
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BACKGROUND@#A protocol for using human endometrium derived induced pluripotent stem cells (iPSCs) to derive hematopoietic and erythroid lineages will be elaborated, through a two-phase culture system. @*METHODS@#Discarded endometrial tissues were obtained from women receiving hysterectomy in their 4th to 5th decade due to benign uterine conditions. pCE-Sox2, Oct4, Klf4, L-Myc and Lin28 episomal vectors were used to electrotransfect the endometrial stromal cells. The first 8 days involves commitment to hematopoietic stem cells through embryoid body with robust expansion on murine bone marrow stromal cells. The second phase involves feeder free conditions with hydrocortisone, stem cell factor, interleukin-3, and recombinant EPO. After 22 days of feeder free culture, the expression profiles of CD235a+ , CD34+ , CD43+ and CD 71+ were analyzed by flow cytometry and Wright-Giemsa staining for differential counting. The oxygen carrying capacity of cultured RBCs was measured using a hemoxanalyser. @*RESULTS@#As a result of inducing these cells via co-culture with murine stromal fibroblasts, all endometrium derived iPSCs were differentiated into erythroblasts with a stable yield of approximately 80% for polychromatic and orthochromatic normoblasts. The protocol for complete induction of erythroid lineage cells starting from human endometrial tissue via iPS cells has been optimized. @*CONCLUSION@#Successful directed erythroid differentiation has occurred from human endometrium-derived iPS cells. A comprehensive process of actually deriving iPS cells using discarded surgical hysterectomy specimens to the erythroid fate has significance in that the scope of using human iPSC cell lines for tissue regeneration could be expanded in the future.
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Increasing importance of vaccination during coronavirus disease 2019 (COVID-19) pandemic, several vaccines were developed. Messenger RNA (mRNA) vaccines including BNT162b2 (Pfizer, New York, NY, USA; BioNTech, Mainz, Germany), mRNA-1273 (Moderna, Cambridge, MA, USA) have been disclosed side effects such as thrombocytopenia, myocarditis and headache in general. In addition, adverse effects due to autoimmune responses induced by spike glycoproteins of mRNA vaccines are rarely reported such as the Guillain-Barre syndrome, autoimmune encephalitis and so on. Herein, we report a rare case of encephalitis with new-onset refractory status epilepticus after BNT162b2 mRNA COVID-19 vaccination improved with immune therapy.
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Purpose@#The aim of this study was to explore the causes and effects of burnout experienced by insurance review nurses working in hospitals. @*Methods@#Data were collected from April to May, 2021, using focus group interviews. The study enrolled 19 insurance review nurses with at least one year of experience. Data were analyzed using the content analysis method. @*Results@#Causes of burnout were divided into three categories: eight subcategories (feeling of insufficient competence in an insurance review, closed mind in a limited working space, incompetency from other departments, harsh words and deeds that exclude me, insurance cuts controlling my work performance, cloudy mind chased by the billing date, ineffective hospital information systems, and question with no answer) and 23 causes. The impact of burnout was divided into three categories: six subcategories (experiencing mental and physical symptoms, projecting one’s feelings into family or neglecting them, withdrawing myself, wearing a mask, decreased work performance, and desiring to leave one’s work), and 14 concepts. @*Conclusion@#This study provides basic data for strategy development to prevent and solve burnout problems among insurance review nurses. It is important to develop programs and policies to solve the burnout problem of insurance review nurses in the future.
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The lateral septum (LS) is a forebrain structure that has been implicated in a wide range of behavioral and physiological responses to stress. However, the specific populations of neurons in the LS that mediate stress responses remain incompletely understood. Here, we show that neurons in the dorsal lateral septum (LSd) that express the somatostatin gene (hereafter, LSd Sst neurons) are activated by diverse stressors. Retrograde tracing from LSd Sst neurons revealed that these neurons are directly innervated by neurons in the locus coeruleus (LC), the primary source of norepinephrine well-known to mediate diverse stress-related functions in the brain. Consistently, we found that norepinephrine increased excitatory synaptic transmission onto LSd Sst neurons, suggesting the functional connectivity between LSd Sst neurons and LC noradrenergic neurons. However, optogenetic stimulation of LSd Sst neurons did not affect stress-related behaviors or autonomic functions, likely owing to the functional heterogeneity within this population. Together, our findings show that LSd Sst neurons are activated by diverse stressors and suggest that norepinephrine released from the LC may modulate the activity of LSd Sst neurons under stressful circumstances.
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Seizure is an uncommon complication of coronavirus disease 2019 (COVID-19). The frequency and characteristics of new-onset seizures in hospitalized patients with COVID-19 were investigated. Of a total of 1,487 patients with confirmed COVID-19, six (0.4%) developed new-onset seizures. All six had severe or critical COVID-19 requiring intensive care and mechanical ventilation or high-flow oxygen therapy. Among COVID-19 patients admitted to the intensive care unit (n = 169), the incidence of new-onset seizures was 3.6%. Underlying structural lesions (acute infarction and remote hemorrhage), hypoxia, sepsis, and metabolic derangements were associated with the development of seizures. Of the six patients, three patients died, and, at the time of discharge, one patient had a severe disability, while the remaining two were well recovered.
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Purpose@#The aims of this study were to assess the status of physical activity (PA) and to identify the association with physiological indicators, hand grip strength, stress, and health-related quality of life (HRQoL) among cancer survivors. @*Methods@#Data of 999 Korean cancer survivors aged 19 and older were extracted from the Korea National Health and Nutrition Examination Survey (VII, 2016-2018; VIII-1, 2019). Complex samples analysis was performed using the SPSS/WIN 26.0 program. @*Results@#The percentage of recommended levels of aerobic PA, walking, and muscle strength training was 43.8%, 19.3%, and 21.6%, respectively. Compared to the PA group, the non-aerobic PA group had a higher ratio in abnormal systolic blood pressure and triglyceride level; the non-walking group had a higher ratio in abnormal diastolic blood pressure, and normal total cholesterol and abnormal high sensitive C-reactive protein (hs-CRP) levels; and the non-muscle strength training group had a higher hs-CRP level. The non-aerobic PA or non-muscle strength training group had low hand grip strength. The non-walking group perceived high stress, and all non-PA subgroups showed low HRQoL. @*Conclusion@#This study provides useful results for predicting PA types that can be utilized to improve physiological function, stress, and HRQoL for cancer survivors, thus providing empirical evidence for developing PA intervention.
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Purpose@#To report a case of preseptal cellulitis after strabismus surgery in a patient with no previous history of ocular surgery.Case summary: A 33-year-old male visited the ophthalmology clinic with a 4-day history of left eye pain and lid swelling after strabismus surgery. He was a healthy patient with a history of polio resulting in left hemiparalysis and difficulty walking. He was followed up with left medial rectus and lateral rectus muscle resection surgery for secondary sensory esotropia. His best corrected visual acuity was 0.6 in his left eye and physical examination revealed pain, eyelid edema, chemosis, and purulent discharge from the left conjunctival fornix. Computed tomography scanning with contrast enhancement revealed diffuse preseptal periorbital soft tissue swelling and enhanced fat stranding suggesting left preseptal cellulitis. The patient was hospitalized with intravenous broad spectrum antibiotics. Left eye swelling was improved and purulent discharge had decreased after 3 days; he was discharged after a 5-day course of intravenous antibiotic treatment. Oral antibiotics were administrated for 1 week. The patient had no recurrent symptoms during the 3-month follow-up. @*Conclusions@#Although rare, preseptal cellulitis after strabismus surgery must be promptly recognized to prevent secondary complications related to infection.
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Background@#and Purpose To investigate the incidence and characteristics of neurological manifestations associated with coronavirus disease 2019 (COVID-19). @*Methods@#We reviewed the medical records of the consecutive patients with COVID-19 who were admitted to the central infectious diseases hospital designated for the treatment of COVID-19 in South Korea between March 2020 and September 2020. Newly developed neurological manifestations associated with COVID-19 were investigated. The frequency and clinical features of the neurological manifestations were analyzed according to disease severity, which was classified according to World Health Organization interim guidance. @*Results@#Of the 306 symptomatic patients, 186 (60.8%) developed at least one neurological manifestation during hospitalization. The most common neurological symptom was headache (n=102, 33.3%), followed by myalgia (n=96, 31.4%) and anosmia/ageusia (n=54, 17.6%). Acute stroke (all ischemic stroke) occurred in three (1.0%) patients, and new-onset seizures occurred in two (0.7%). Neurological manifestation was a presenting symptom of COVID-19 in 72 (23.5%) patients, and was the only symptom of COVID-19 in 12 (3.9%). Stroke, seizure, and impaired consciousness were significantly associated with severe to critical COVID-19, whereas headache and anosmia/ageusia were frequently found in patients with mild to moderate disease. @*Conclusions@#Neurological manifestations were commonly observed in patients with COVID-19. During the current pandemic, when patients present with new-onset neurological symptoms, COVID-19 may be considered as part of the differential diagnosis. Attention to severe neurological complications is needed, especially in patients with severe or critical COVID-19.
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Purpose@#To report a case of preseptal cellulitis after strabismus surgery in a patient with no previous history of ocular surgery.Case summary: A 33-year-old male visited the ophthalmology clinic with a 4-day history of left eye pain and lid swelling after strabismus surgery. He was a healthy patient with a history of polio resulting in left hemiparalysis and difficulty walking. He was followed up with left medial rectus and lateral rectus muscle resection surgery for secondary sensory esotropia. His best corrected visual acuity was 0.6 in his left eye and physical examination revealed pain, eyelid edema, chemosis, and purulent discharge from the left conjunctival fornix. Computed tomography scanning with contrast enhancement revealed diffuse preseptal periorbital soft tissue swelling and enhanced fat stranding suggesting left preseptal cellulitis. The patient was hospitalized with intravenous broad spectrum antibiotics. Left eye swelling was improved and purulent discharge had decreased after 3 days; he was discharged after a 5-day course of intravenous antibiotic treatment. Oral antibiotics were administrated for 1 week. The patient had no recurrent symptoms during the 3-month follow-up. @*Conclusions@#Although rare, preseptal cellulitis after strabismus surgery must be promptly recognized to prevent secondary complications related to infection.
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Background@#and Purpose To investigate the incidence and characteristics of neurological manifestations associated with coronavirus disease 2019 (COVID-19). @*Methods@#We reviewed the medical records of the consecutive patients with COVID-19 who were admitted to the central infectious diseases hospital designated for the treatment of COVID-19 in South Korea between March 2020 and September 2020. Newly developed neurological manifestations associated with COVID-19 were investigated. The frequency and clinical features of the neurological manifestations were analyzed according to disease severity, which was classified according to World Health Organization interim guidance. @*Results@#Of the 306 symptomatic patients, 186 (60.8%) developed at least one neurological manifestation during hospitalization. The most common neurological symptom was headache (n=102, 33.3%), followed by myalgia (n=96, 31.4%) and anosmia/ageusia (n=54, 17.6%). Acute stroke (all ischemic stroke) occurred in three (1.0%) patients, and new-onset seizures occurred in two (0.7%). Neurological manifestation was a presenting symptom of COVID-19 in 72 (23.5%) patients, and was the only symptom of COVID-19 in 12 (3.9%). Stroke, seizure, and impaired consciousness were significantly associated with severe to critical COVID-19, whereas headache and anosmia/ageusia were frequently found in patients with mild to moderate disease. @*Conclusions@#Neurological manifestations were commonly observed in patients with COVID-19. During the current pandemic, when patients present with new-onset neurological symptoms, COVID-19 may be considered as part of the differential diagnosis. Attention to severe neurological complications is needed, especially in patients with severe or critical COVID-19.
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Venous thromboembolism (VTE), which includes pulmonary embolism and deep vein thrombosis, is a condition characterized by abnormal blood clot formation in the pulmonary arteries and the deep venous vasculature. It is often serious and sometimes even fatal if not promptly and appropriately treated. Moreover, the later consequences of VTE may result in reduced quality of life. The treatment of VTE depends on various factors, including the type, cause, and patient comorbidities. Furthermore, bleeding may occur as a side effect of VTE treatment. Thus, it is necessary to carefully weigh the benefits versus the risks of VTE treatment and to actively monitor patients undergoing treatment. Asian populations are known to have lower VTE incidences than Western populations, but recent studies have shown an increase in the incidence of VTE in Asia. A variety of treatment options are currently available owing to the introduction of direct oral anticoagulants.The current VTE treatment recommendation is based on evidence from previous studies, but it should be applied with careful consideration of the racial, genetic, and social characteristics in the Korean population.
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Background@#Status epilepticus is a severe neurologic emergency comprising significant morbidity and mortality. This study investigated the epidemiologic features of status epilepticus in Korea from 2010 to 2019. @*Methods@#We used the Healthcare Bigdata Hub of the Korea National Health Insurance Database to identify records with principal diagnostic codes for status epilepticus (G41) using the 10th revision of the International Statistical Classification of Diseases and Related Health Problems from January 2010 to December 2019. This database only included patients with health insurance and not those with medical aid. The annual number of patients, costs, and regional differences were evaluated. The patients hospitalized under the principal diagnostic code for status epilepticus were considered as incident cases. @*Results@#The total number of patients with a diagnosis of status epilepticus increased annually from 3,110 in 2010 to 5,840 in 2019 at a compound annual growth rate of 7.3%. The incidence of status epilepticus per 100,000 population increased steadily from 2.21 in 2010 to 5.33 in 2019. Health care expenditures showed continued growth at a faster rate of 18.4%. When categorized by age groups, the growth rate was markedly higher in age groups >60 years. @*Conclusions@#In Korea, the incidence and cost of status epilepticus have increased from 2010 to 2019. Considering a possible underestimation of the incidence owing to data characteristics, the real incidence of status epilepticus may be higher. This trend in the incidence of status epilepticus can be mostly attributed to the increase of status epilepticus in the older population.
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Purpose@#To evaluate the effect of orthokeratology lenses on axial length elongation and associated factors in eyes treated withorthokeratology lenses for 2-3 years. @*Methods@#Thirty-four eyes of 20 patients treated with orthokeratology lenses for more than 22 months were enrolled into the orthokeratology(OK) group. Uncorrected distant visual acuity, spherical equivalent, axial length, and high-order aberrations of theanterior cornea at baseline and during the follow-up period were analyzed retrospectively. Spectacle-wearing patients matchedwith the OK group patients by sex, age, refractive error and follow-up period were selected as a control group. To adjust for follow-upperiod differences, the 24-month conversion axial length changes were calculated and compared between the two groups. @*Results@#The 24-month conversion mean axial length change showed significant differences (0.50 ± 0.23 mm in the OK groupversus 1.00 ± 0.28 mm in the control group; p< 0.001). For the OK group, the age at starting OK lens (r = -0.572, p= 0.001)showed statistically significant correlation with axial elongation. The anterior corneal spherical aberrations (SA) and coma with 6mm pupil at last follow-up (SA: r = 0.543, p= 0.001; coma: r = 0.420, p= 0.017) and the total SA and total coma changes (ㅿSA:r = 0.518, p= 0.002; ㅿcoma: r = 0.420, p= 0.017) also showed a statistically significant correlation. The initial age and axiallength, the anterior corneal SA and ㅿSA values were identified as factors significantly correlated with axial length elongation bymultiple regression analysis. @*Conclusions@#The OK lens effectively suppressed axial length elongation during a 2-3 years treatment period. However, whenthe age of starting OK lens was younger and the anterior corneal spherical aberration during the follow-up period was larger, therisk of axial elongation was higher.
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Background@#The objective of this study was to examine the association between the nutritional status and the risk of metabolic syndrome according to the frequency of eating with others in elderly men and women. @*Methods@#This study included 4,562 subjects (≥65 years) from the 2013-2017 Korean National Health and Nutrition Examination Survey. Survey logistic regression analyses were conducted to examine the association between the frequency of eating with others per day (0, 1-2, 3 times/day) and nutrient intake and metabolic syndrome, adjusted for the related confounding variables. @*Results@#In elderly men, eating with others was significantly associated with a higher intake of vitamin C, phosphorus, and iron. Additionally, elderly men who ate with others 0 time/day had an adjusted odds ratio of 3.08 (95% confidence interval, 1.43-6.62) for overall nutrient intake insufficiency as compared to elderly men who ate with others 3 times/day. In elderly women, eating with others was significantly associated with a higher intake of energy. However, no association was found between the frequency of eating with others and risk of metabolic syndrome in either sex. @*Conclusions@#Our study findings suggest that frequently eating with others may improve the nutritional status in both elderly men and women.
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BACKGROUND@#Severe and life-threatening drug eruptions include drug reaction with eosinophilia and systemic symptoms (DRESS), Stevens-Johnson syndrome (SJS), and toxic epidermal necrolysis (TEN). One class of medications that has been highly associated with such drug eruptions is antiepileptic drugs (AEDs). We attempt to investigate drug eruptions associated with AEDs as a class, as well as with individual AEDs, in Korea.@*METHODS@#We used the Korea Institute of Drug Safety and Risk Management - Korea Adverse Event Reporting System (KIDS-KAERS) database, a nationwide database of adverse events reports, between January 2008 and December 2017 to investigate the reporting count of all drug eruptions and calculated the ratio of DRESS/SJS/TEN reports for each AED.@*RESULTS@#Among a total of 2,942 reports, most were of rash/urticaria (2,702, 91.8%), followed by those of DRESS (109, 3.7%), SJS (106, 3.6%), and TEN (25, 0.85%). The common causative AEDs were lamotrigine (699, 23.8%), valproic acid (677, 23%), carbamazepine (512, 17.4%), oxcarbazepine (320, 10.9%), levetiracetam (181, 6.2%), and phenytoin (158, 5.4%). In limited to severe drug eruptions (DRESS, SJS, and TEN; total 241 reports), the causative AEDs were carbamazepine (117, 48.8%), lamotrigine (57, 23.8%), valproic acid (20, 8.3%), phenytoin (15, 6.3%), and oxcarbazepine (10, 4.2%). When comparing aromatic AED with non-aromatic AED, aromatic AEDs were more likely to be associated with severe drug eruption (aromatic AEDs: 204/1,793 versus non-aromatic AEDs: 37/1,149; OR, 3.86; 95% CI, 2.7–5.5). Death was reported in 7 cases; DRESS was the most commonly reported adverse event (n = 5), and lamotrigine was the most common causative AED (n = 5).@*CONCLUSION@#Although most cutaneous drug eruptions in this study were rash or urticaria, approximately 8% of reports were of severe or life-threatening adverse drug reactions, such as SJS, TEN, or DRESS. When hypersensitivity skin reactions occurred, aromatic AEDs were associated with 4 fold the risk of SJS/TEN/DRESS compared with non-aromatic AEDs. Our findings further emphasize that high risk AEDs should be prescribed under careful monitoring, and early detection and prompt interventions are needed to prevent severe complications.
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BACKGROUND@#Severe and life-threatening drug eruptions include drug reaction with eosinophilia and systemic symptoms (DRESS), Stevens-Johnson syndrome (SJS), and toxic epidermal necrolysis (TEN). One class of medications that has been highly associated with such drug eruptions is antiepileptic drugs (AEDs). We attempt to investigate drug eruptions associated with AEDs as a class, as well as with individual AEDs, in Korea.@*METHODS@#We used the Korea Institute of Drug Safety and Risk Management - Korea Adverse Event Reporting System (KIDS-KAERS) database, a nationwide database of adverse events reports, between January 2008 and December 2017 to investigate the reporting count of all drug eruptions and calculated the ratio of DRESS/SJS/TEN reports for each AED.@*RESULTS@#Among a total of 2,942 reports, most were of rash/urticaria (2,702, 91.8%), followed by those of DRESS (109, 3.7%), SJS (106, 3.6%), and TEN (25, 0.85%). The common causative AEDs were lamotrigine (699, 23.8%), valproic acid (677, 23%), carbamazepine (512, 17.4%), oxcarbazepine (320, 10.9%), levetiracetam (181, 6.2%), and phenytoin (158, 5.4%). In limited to severe drug eruptions (DRESS, SJS, and TEN; total 241 reports), the causative AEDs were carbamazepine (117, 48.8%), lamotrigine (57, 23.8%), valproic acid (20, 8.3%), phenytoin (15, 6.3%), and oxcarbazepine (10, 4.2%). When comparing aromatic AED with non-aromatic AED, aromatic AEDs were more likely to be associated with severe drug eruption (aromatic AEDs: 204/1,793 versus non-aromatic AEDs: 37/1,149; OR, 3.86; 95% CI, 2.7–5.5). Death was reported in 7 cases; DRESS was the most commonly reported adverse event (n = 5), and lamotrigine was the most common causative AED (n = 5).@*CONCLUSION@#Although most cutaneous drug eruptions in this study were rash or urticaria, approximately 8% of reports were of severe or life-threatening adverse drug reactions, such as SJS, TEN, or DRESS. When hypersensitivity skin reactions occurred, aromatic AEDs were associated with 4 fold the risk of SJS/TEN/DRESS compared with non-aromatic AEDs. Our findings further emphasize that high risk AEDs should be prescribed under careful monitoring, and early detection and prompt interventions are needed to prevent severe complications.
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Background@#The objective of this study was to examine the association between the nutritional status and the risk of metabolic syndrome according to the frequency of eating with others in elderly men and women. @*Methods@#This study included 4,562 subjects (≥65 years) from the 2013-2017 Korean National Health and Nutrition Examination Survey. Survey logistic regression analyses were conducted to examine the association between the frequency of eating with others per day (0, 1-2, 3 times/day) and nutrient intake and metabolic syndrome, adjusted for the related confounding variables. @*Results@#In elderly men, eating with others was significantly associated with a higher intake of vitamin C, phosphorus, and iron. Additionally, elderly men who ate with others 0 time/day had an adjusted odds ratio of 3.08 (95% confidence interval, 1.43-6.62) for overall nutrient intake insufficiency as compared to elderly men who ate with others 3 times/day. In elderly women, eating with others was significantly associated with a higher intake of energy. However, no association was found between the frequency of eating with others and risk of metabolic syndrome in either sex. @*Conclusions@#Our study findings suggest that frequently eating with others may improve the nutritional status in both elderly men and women.