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Isolated unilateral hypoglossal nerve palsy (IUHNP) is rare because of its complex course and close adjacent structures. Prostate cancer is a very rare cause of hypoglossal nerve palsy and reported scarcely. We herein report the first case of metastatic prostate cancer presented with IUHNP in Korea, which shows good clinico-radiological correlation.
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Objective@#To compare the outcomes of digital breast tomosynthesis (DBT) screening combined with ultrasound (US) with those of digital mammography (DM) combined with US in women with dense breasts. @*Materials and Methods@#A retrospective database search identified consecutive asymptomatic women with dense breasts who underwent breast cancer screening with DBT or DM and whole-breast US simultaneously between June 2016 and July 2019. Women who underwent DBT + US (DBT cohort) and DM + US (DM cohort) were matched using 1:2 ratio according to mammographic density, age, menopausal status, hormone replacement therapy, and a family history of breast cancer. The cancer detection rate (CDR) per 1000 screening examinations, abnormal interpretation rate (AIR), sensitivity, and specificity were compared. @*Results@#A total of 863 women in the DBT cohort were matched with 1726 women in the DM cohort (median age, 53 years; interquartile range, 40–78 years) and 26 breast cancers (9 in the DBT cohort and 17 in the DM cohort) were identified. The DBT and DM cohorts showed comparable CDR (10.4 [9 of 863; 95% confidence interval {CI}: 4.8–19.7] vs. 9.8 [17 of 1726;95% CI: 5.7–15.7] per 1000 examinations, respectively; P = 0.889). DBT cohort showed a higher AIR than the DM cohort (31.6% [273 of 863; 95% CI: 28.5%–34.9%] vs. 22.4% [387 of 1726; 95% CI: 20.5%–24.5%]; P < 0.001). The sensitivity for both cohorts was 100%. In women with negative findings on DBT or DM, supplemental US yielded similar CDRs in both DBT and DM cohorts (4.0 vs. 3.3 per 1000 examinations, respectively; P = 0.803) and higher AIR in the DBT cohort (24.8% [188 of 758; 95% CI: 21.8%–28.0%] vs. 16.9% [257 of 1516; 95% CI: 15.1%–18.9%; P < 0.001). @*Conclusion@#DBT screening combined with US showed comparable CDR but lower specificity than DM screening combined with US in women with dense breasts.
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Objective@#The Risk-Rescue Rating Scale (RRRS) is generally implemented to predict the lethality of suicide attempts, whereas the Acute Physiology and Chronic Health Evaluation II (APACHE-II) scoring system is applied as an accurate measure of the severity of patient condition of patients admitted to intensive care units (ICUs). Using the RRRS and APACHE-II scores, in this study, we aimed to investigate the factors related to ICU admissions of deliberate self-poisoning (DSP) patients admitted to emergency departments (EDs). @*Methods@#The epidemiologic and psychologic factors, electronic medical records, and laboratory tests of DSP patients were prospectively collected and analyzed. We divided the patients into two groups, an ICU admission group and a nonICU admission group. @*Results@#This study included 387 patients, 333 (86.0%) of which were in the non-ICU group and 54 (14.0%) in the ICU admission group. Multivariate logistic analysis was conducted to independently associate the ICU admissions with RRRS (odds ratio [OR], 1.40; 95% confidence interval [CI], 1.27-1.55; P<0.01), APACHE-II scores (OR, 1.11; 95% CI, 1.03- 1.21; P=0.01), and amylase values (OR, 1.01; 95% CI, 1.00-1.01; P=0.02). A receiver operating characteristics (ROC) curve analysis of the decision for admission to the ICU yielded the following scores for RRRS and APACHE II—cutoff values of 39.5 and 8.5, sensitivity of 96% and 66.0%, specificity of 74.0% and 75.1%, and area under the ROC curve (AUC) values of 0.95 and 0.74, respectively (P<0.01). @*Conclusion@#The RRRS and APACHE-II scores could be used to determine ICU admissions in DSP patients admitted to the ED.
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The cellular homeostasis of proteins (proteostasis) and RNA metabolism (ribostasis) are essential for maintaining both the structure and function of the brain. However, aging, cellular stress conditions, and genetic contributions cause disturbances in proteostasis and ribostasis that lead to protein misfolding, insoluble aggregate deposition, and abnormal ribonucleoprotein granule dynamics. In addition to neurons being primarily postmitotic, nondividing cells, they are more susceptible to the persistent accumulation of abnormal aggregates. Indeed, defects associated with the failure to maintain proteostasis and ribostasis are common pathogenic components of age-related neurodegenerative diseases, including Alzheimer’s disease, Parkinson’s disease, and amyotrophic lateral sclerosis. Furthermore, the neuronal deposition of misfolded and aggregated proteins can cause both increased toxicity and impaired physiological function, which lead to neuronal dysfunction and cell death. There is recent evidence that irreversible liquid–liquid phase separation (LLPS) is responsible for the pathogenic aggregate formation of disease-related proteins, including tau, α-synuclein, and RNA-binding proteins, including transactive response DNA-binding protein 43, fused in sarcoma, and heterogeneous nuclear ribonucleoprotein A1. Investigations of LLPS and its control therefore suggest that chaperone/disaggregase, which reverse protein aggregation, are valuable therapeutic targets for effective treatments for neurological diseases. Here we review and discuss recent studies to highlight the importance of understanding the common cell death mechanisms of proteostasis and ribostasis in neurodegenerative diseases.
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Background@#Guselkumab is a monoclonal antibody that selectively blocks the p19 subunit of interleukin-23. It has shown good efficacy and safety profile in several clinical trials of plaque psoriasis. However, studies on the efficacy of guselkumab in patients treated with other biologics are lacking. @*Objective@#We aimed to investigate the efficacy and safety profile of guselkumab in patients with moderate-to-severe plaque psoriasis. We also compared the efficacy of guselkumab between biologic-naïve (Bio-Naïve) and biologicexperienced (Bio-Ex) patients. @*Methods@#This multicenter, retrospective study included 72 patients treated with guselkumab. The patients’ clinical characteristics and psoriasis area and severity index (PASI) scores were recorded at each visit. The PASI90 and PASI100 responses and mean PASI scores were compared between the Bio-Naïve and Bio-Ex groups. @*Results@#Fifty-five Bio-Naïve patients and 17 Bio-Ex patients were included in the study. At week 20, there were no significant differences in the PASI90 (64.2% vs. 53.8%) and PASI100 (28.3% vs. 15.4%) responses between the groups. However, at weeks 36 and 44, the PASI90 response (week 36: 89.2% vs. 36.4% and week 44: 97.8% vs. 63.6%) and the PASI100 response (week 36: 64.9% vs. 18.2% and week 44: 68.9% vs. 27.3%) were significantly higher in the Bio-Naïve group (p＜0.05). There were no differences in PASI90 and PASI100 responses between the groups in terms of other clinical characteristics and comorbidities at week 20. @*Conclusion@#The efficacy of guselkumab remained consistent among patients in whom other biologics had failed. However, the efficacy was slightly lower in the Bio-Ex group than in the Bio-Naïve group.
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Desmoplastic Spitz nevus is a rare variant of Spitz nevus characterized by predominantly spindle-shaped or epithelioid nevus cells within the fibrotic stroma that can be confused with fibrous lesions. A 43-year-old woman presented with a 1-cm-sized dome-shaped papule on the dorsum of her left foot. The lesion showed histopathological features of a desmoplastic Spitz nevus with structures that resemble adenoma. Immunohistochemical staining was positive for S-100 protein, Melan-A, and SOX-10. Herein, we report this case because desmoplastic Spitz nevus is rare and can lead to confusion regarding the diagnosis of adnexal neoplasms.
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Background@#Mesenchymal stem cells (MSCs) have been investigated as therapeutic agents for inflammatory bowel disease (IBD). Stimulation of MSCs with pro-inflammatory cytokines is an approach to enhance their immunomodulatory effects. However, further investigation is required to support their application in immune-mediated disorders and companion animals. @*Objectives@#This study aimed to assess the therapeutic effect of tumor necrosis factor (TNF)-α-stimulated feline adipose tissue-derived MSCs (fAT-MSCs) in a dextran sulfate sodium (DSS)-induced colitis mouse model. @*Methods@#Colitis mice was made by drinking water with 3% DSS and fAT-MSCs were injected intraperitoneally. Colons were collected on day 10. The severity of the disease was evaluated and compared. Raw 264.7 cells were cultured with the conditioned medium to determine the mechanism, using quantitative real-time polymerase chain reaction and enzyme-linked immunosorbent assay. @*Results@#TNF-α-stimulated fAT-MSCs more improved severity of DSS-induced colitis in disease activity, colon length, histologic score, and inflammatory cytokine. In sectionized colon tissues, the group comprising TNF-α-stimulated fAT-MSCs had higher proportion of CD11b + CD206 + macrophages than in the other groups. In vitro, TNF-α-stimulation increased cyclooxygenase-2 (COX-2) expression and prostaglandin E2 (PGE2 ) secretion from fAT-MSCs. The conditioned medium from TNF-α-stimulated fAT-MSCs enhanced the expression of interleukin-10 and arginase-1 in LPS-activated Raw 264.7 cells. @*Conclusions@#These results represent that TNF-α-stimulated fat-mscs ameliorate the inflamed colon more effectively. Furthermore, we demonstrated that the effectiveness was interlinked with the COX-2/PGE2 pathway.
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Background@#Though antenatal magnesium sulfate (MgSO4 ) is widely used for fetal neuroprotection, suspicions about the long-term neuroprotection of antenatal MgSO4 have been raised. @*Methods@#We investigated short- and long-term outcomes of antenatal MgSO4 use for 468 infants weighing < 1,500 g with a gestational age of 24–31 weeks. @*Results@#Short-term morbidities and the risk of developmental delay, hearing loss, and cerebral palsy at a corrected age of 18–24 months and 3 years of age did not decrease in the MgSO4 group (infants who were exposed to MgSO4 for any purpose) or neuroprotection group (infants who were exposed to MgSO4 for fetal neuroprotection) compared with the control group (infants who were not exposed to MgSO4 ). The z-scores of weight, height, and head circumference did not increase in the MgSO4 group or neuroprotection group compared with the control group. @*Conclusion@#Antenatal MgSO4 including MgSO4 for neuroprotection did not have beneficial effects on long-term neurodevelopmental and growth outcomes.
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Background@#Data on the status of long-term follow-up (LTFU) care for childhood cancer survivors (CCSs) in Korea is lacking. This study was conducted to evaluate the current status of LTFU care for CCSs and relevant physicians’ perspectives. @*Methods@#A nationwide online survey of pediatric hematologists/oncologists in the Republic of Korea was undertaken. @*Results@#Overall, 47 of the 74 board-certified Korean pediatric hematologists/oncologists currently providing pediatric hematology/oncology care participated in the survey (response rate = 63.5%). Forty-five of the 47 respondents provided LTFU care for CCSs five years after the completion of primary cancer treatment. However, some of the 45 respondents provided LTFU care only for CCS with late complications or CCSs who requested LTFU care. Twenty of the 45 respondents oversaw LTFU care for adult CCSs, although pediatric hematologists/ oncologists experienced more difficulties managing adult CCSs. Many pediatric hematologists/oncologists did not perform the necessary screening test, although CCSs had risk factors for late complications, mostly because of insurance coverage issues and the lack of Korean LTFU guidelines. Regarding a desirable LTFU care system for CCSs in Korea, 27 of the 46 respondents (58.7%) answered that it is desirable to establish a multidisciplinary CCSs care system in which pediatric hematologists/oncologists and adult physicians cooperate. @*Conclusion@#The LTFU care system for CCS is underdeveloped in the Republic of Korea. It is urgent to establish an LTFU care system to meet the growing needs of Korean CCSs, which should include Korean CCSs care guidelines, provider education plans, the establishment of multidisciplinary care systems, and a supportive national healthcare policy.
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Purpose@#Detection of multifocal, multicentric, and contralateral breast cancers in patients affects surgical management. Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) can identify additional foci that were initially undetected by conventional imaging. However, its use is limited owing to low specificity and high false-positive rate. Multiparametric MRI (DCE-MRI + diffusion-weighted [DW] MRI) can increase the specificity. We aimed to describe the protocols of our prospective, multicenter, observational cohort studies designed to compare the diagnostic performance of DCE-MRI and multiparametric MRI for the diagnosis of multifocal, multicentric cancer and contralateral breast cancer in patients with newly diagnosed breast cancer. @*Methods@#Two studies comparing the performance of DCE-MRI and multiparametric MRI for the diagnosis of multifocal, multicentric cancer (NCT04656639) and contralateral breast cancer (NCT05307757) will be conducted. For trial NCT04656639, 580 females with invasive breast cancer candidates for breast conservation surgery whose DCE-MRI showed additional suspicious lesions (breast imaging reporting and data system [BI-RADS] category ≥ 4) on DCE-MRI in the ipsilateral breast will be enrolled. For trial NCT05307757, 1098 females with invasive breast cancer whose DCE-MRI showed contralateral lesions (BI-RADS category ≥ 3 or higher on DCE-MRI) will be enrolled. Participants will undergo 3.0-T DCE-MRI and DWMRI. The diagnostic performance of DCE-MRI and multiparametric MRI will be compared.The receiver operating characteristic curve, sensitivity, specificity, positive predictive value, and characteristics of the detected cancers will be analyzed. The primary outcome is the difference in the receiver operating characteristic curve between DCE-MRI and multiparametric MRI interpretation. Enrollment completion is expected in 2024, and study results are expected to be presented in 2026.Discussion: This prospective, multicenter study will compare the performance of DCE-MRI versus multiparametric MRI for the preoperative evaluation of multifocal, multicentric, and contralateral breast cancer and is currently in the patient enrollment phase.
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Objective@#To explore the commonalities and differences between primary school students and teachers in beliefs of myopia prevention and control, in order to provide a theoretical basis for the education programs of myopia prevention and control.@*Methods@#Convenient sampling method was used to select 14 students and 16 teachers from grades 3 and 4 in two elementary schools in Hangzhou for one to one in depth interviews, and the results were coded and analyzed by using Nvivo 11.0 software.@*Results@#There were commonalities in the perceived severity, benefits and barriers of myopia prevention and control beliefs among students and teachers, and the common keywords had been mentioned for 114 times, the commonalities of perceived severity, benefits and barriers were more obvious among them; there were differences in the specific attributions of perceived susceptibility, severity and barriers among students and teachers，the difference keywords had been mentioned for 63 times, the differences of perceived susceptibility, severity and barriers were more obvious among them.@*Conclusion@#There were commonalities in the perceived susceptibility, severity, benefits and barriers of myopia prevention and control beliefs between students and teachers; there were differences in the aspects of perceived susceptibility, severity and barriers between students and teachers. Adverse health outcomes of myopia and associated prevention knowledge should be enhanced among students. schools should carry out health education activities to improve the ability of teachers and students to prevent and control myopia; the government should implement the "double reduction" policy and improve the safety insurance system for outdoor activities.
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Objective:To explore the application and effect of peri-operative recovery-quality-directed teaching reform for clinical internship training of anesthesiology.Methods:A total of 60 interns of five-year program anesthesiology from the Department of Anesthesiology of Chongqing Medical University were recruited for this teaching reform and randomly allocated to teaching reform group ( n=30) and control group ( n=30). Students in control group received conventional training for internship of clinical anesthesiology and follow-up, while students in teaching reform group received additional recovery-quality-directed clinical rounds per teaching week and patients discussed in those rounds were followed up until 30 days after operation. At the end of internship, teaching satisfaction, graduation test scores and patients' satisfaction were compared. SPSS 21.0 was used for t test. Results:Compared with those students in control group, interns in teaching reform group had significantly higher scores on teaching satisfaction [(9.1±1.3) vs. (6.7±1.9), P<0.05], graduation test scores [(80.0±5.0) vs. (67.0±6.0), P<0.05] and patients' satisfaction [(92.0±6.0) vs. (83.0±11.0), P<0.05]. Conclusion:Recovery-quality-directed peri-operative teaching reform can enhance the professional identity and sense of responsibility of anesthesiology students, improve their teaching satisfaction and theoretical knowledge level, and improve the satisfaction of related patients with anesthesia services.
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The strategy of enhanced recovery after surgery (ERAS) runs through the whole perioperative period, which requires to reduce the traumatic stress and psychological stress caused by disease, surgery and anesthesia, reduce postoperative complications, accelerate the early postoperative rehabilitation and improve the long-term prognosis. The recovery period of anesthesia is a special period with high incidence of multiple complications, and its severity may endanger the lives of patients. It is a great challenge for the medical staff in the post anesthesia recovery room to quickly and safely recover the patients from the anesthesia state to the physiological state close to the pre anesthesia state, so as to reduce the complications in the post anesthesia recovery room, shorten the residence time, and achieve safe and comfortable recovery. Therefore, this article reviews the clinical progress of ERAS strategy in postanesthesia care unit.
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Objective:To evaluate the teaching effect of organ system based learning model on undergraduate clinical practice teaching of anesthesiology.Methods:Thirty-five undergraduates of Batch 2013 who practiced in the Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University (round 2) were enrolled as the control group; another 27 undergraduates of Batch 2014 were enrolled as the experimental group. The examination before entering the department evaluated the basic knowledge levels of the two groups. The control group was given the traditional practice teaching mode, while the experimental group was given the practice teaching mode based on organ system. The teaching effect of the organ system based learning model on the practice of department of anesthesiology was evaluated by the examination after the practice and questionnaire survey on students. SPSS 19.0 was used for data statistics and t test was conducted for analysis. Results:There was no significant difference in gender, age and admission education performance between the two groups ( P=0.168, 0.592, 0.750). In the quality and analysis scores of the medical records, the review defense scores, and the theoretical scores, the average scores of the experiment group were all higher than those in the control group ( P=0.021, <0.001, <0.001) at the end of the practice; there was no significant difference in operational exam between the two groups ( P=0.106). The results of questionnaire survey showed that the average scores of the experiment group in the satisfaction of learning mode, teaching efficiency, education and teaching level and teaching information were all higher than those in the control group ( P<0.001, <0.001, <0.001, <0.001); there was no significant difference between the two groups in students' learning efficiency and inspiration ( P=0.778, 0.104). Conclusion:The organ system based learning model in undergraduate clinical practice teaching of anesthesiology has significantly improved the education quality, the theoretical achievement and comprehensive ability of interns.
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Background@#Prurigo nodularis (PN) is a chronic pruritic skin disorder with a large number of hyperkeratotic nodules. The precise mechanisms of its pathogenesis remain unknown. PN has been linked to atopic dermatitis (AD), but its association remains unclear. @*Objective@#We aimed to investigate the clinical, histological, and immunohistochemical characteristics of patients with PN and PN underlying AD (PN-AD). @*Methods@#Eight patients were recruited for PN, PN-AD, and eight normal subjects, respectively. Skin tissues were obtained from patients and healthy subjects for histological and immunohistochemical analyses. @*Results@#Histological examination showed increased epidermal thickness and dermal inflammatory cell counts in the PN-AD and PN groups compared to normal subjects. Immunohistochemical analyses revealed that the expression of interleukin (IL)-4, IL-13, IL-18, IL-31, IL-33, interferon (IFN)-γ, stromal-derived factor (SDF) 1-α and thymic stromal lymphopoietin (TSLP) was increased in the tissues of PN-AD and PN groups, in which the staining intensities of IL-4, IL-13, SDF1-α and TSLP in the PN-AD group were higher than those in the PN group, but the differences were not statistically significant. Conversely, the staining intensities of IL-18, IL-33 and IFN-γ were significantly higher in the PN group than those in the PN-AD group. @*Conclusion@#The pathogenesis of PN may differ from that of PN-AD, in which IL-18, IL-33 and IFN-γ may be associated, implying that epidermal injury is the initial cause of IL-18 and IL-33 induction, which then increases IFN-γ, resulting in the inflammatory process of PN.
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Background@#Plastic waste generates pollutants in the process of incineration or landfilling, and accumulates in water or marine organisms, causing adverse effects on the environment and the human body. Recently, various eco-friendly oral hygiene products (Eco-OHPs) such as bamboo toothbrushes and biodegradable plastic toothbrushes have been developed. Therefore, this study aimed to investigate the current level of awareness and purchasing status of eco-OHPs among adults who are interested in eco-friendly products. @*Methods@#This study included adults aged ＞19 years who regularly visited eco-friendly shops and online sites; the online survey links were distributed during their visits to eco-friendly Internet cafés and companies. Of the 22 questions, seven assessed the participants’ general characteristics, three assessed the general oral hygiene care products used, six assessed the level of awareness of Eco-OHPs, and six assessed the purchasing status of Eco-OHPs. Frequency analysis, chi-square test, and regression analysis were performed using SPSS software. @*Results@#Among the respondents, 108 (51.4%) were aware of Eco-OHPs, and 79 (37.6%) had experience purchasing Eco-OHPs. The most common reason for not purchasing was the lack of information about related brands or products (74, 56.5%). The most common platform used in obtaining information was the Internet (general: 31.5%, eco-friendly: 46.3%), such as Social Network Service, Internet cafes, and blogs. The experience in purchasing Eco-OHPs was affected by whether the respondents recognized the possibility of contributing to environmental preservation, availability of vendors, product safety, and the number of eco-friendly products purchased. @*Conclusion@#In order to expand the use of Eco-OHPs, various efforts such as promotion of eco-friendly characteristics, determination of related vendors, reliable analysis of product safety, and expansion of product experience opportunities are required.
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Purpose@#Reversible aggravation of myelopathy symptoms was observed after the intake of taurine-rich foods in patients with venous congestive myelopathy (VCM) caused by a spinal arteriovenous shunt (SAVS), and the taurine-challenge test was applied to demonstrate an association between taurine and VCM. @*Materials and Methods@#The current study reviewed any aggravation history of myelopathy symptoms, including walking difficulty, after consuming taurine-rich foods among 133 consecutive patients with a SAVS from a prospective institutional database from June 2013 to February 2021. The type of taurine-rich foods, demographic data, arteriovenous shunt level, and follow-up periods were obtained. For the controlled taurine challenge test, Bacchus® (Dong-A Pharmaceutical, Seoul, Korea), a taurine-rich drink, was given to patients who fulfilled test criteria of recovered VCM (pain-sensory-motor-sphincter scale ≥2, improvement of spinal cord signal intensity on magnetic resonance imaging, and follow-up >6 months after SAVS treatment) to confirm the disappearance of such aggravation. @*Results@#Ten patients had an aggravation history related to food. Webfoot octopus, small octopus, squid, crab, scallop, and taurine-rich energy drink (Bacchus®) were related to such aggravation in patients with VCM. Aggravation appeared about 30 minutes after food intake followed by expressions such as ‘I could not walk and collapsed to the ground’ and usually lasted for about 3 hours, followed by a slow recovery after taking rest. Four patients who met the test criteria underwent the taurine challenge with Bacchus® and revealed no further symptom aggravation, suggesting that taurine did not affect patients after recovery from VCM. @*Conclusion@#The association between taurine-rich food and reversible symptom aggravation can appear in patients with VCM and disappear after VCM treatment. Aggravation of venous hypertension in the spinal cord is suggested as a mechanism but further elucidation is needed.
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Background@#Risankizumab is a humanized immunoglobulin G1 monoclonal antibody that selectively binds to the p19 subunit of interleukin-23. Risankizumab has demonstrated rapid and excellent therapeutic effects in several clinical trials. Although a growing number of studies have reported data on the real-world efficacy and safety of risankizumab for the treatment of psoriasis, no such study has been conducted in Korea. @*Objective@#We evaluated the real-world efficacy and safety of risankizumab for the treatment of moderate-to-severe plaque psoriasis in Korean patients. @*Methods@#This was a retrospective single-center study. A total of 33 patients treated with risankizumab, for at least 16 weeks, were enrolled. Based on electronic medical records, the clinical characteristics, psoriasis area and severity index (PASI) score, body surface area, and adverse events were investigated. @*Results@#The mean PASI score was significantly reduced at 4 weeks of risankizumab treatment (3.27±2.15) and gradually reduced at week 16 (1.06±0.97) and week 52 (0.24±0.63) (p＜0.05). At week 16, all patients achieved a PASI 75 response, and 66.7% and 27.3% of patients achieved PASI 90 and PASI 100 responses, respectively. Obese patients (body mass index, BMI≥25 kg/m2 ) showed a lower PASI 90 response than non-obese patients (BMI＜25 kg/m2 ) at week 16. Older patients (age≥65 years) showed significantly higher PASI scores than younger patients (age＜65 years) at week 16. Mild to moderate adverse events were reported in four patients; however, no patient discontinued treatment. @*Conclusion@#Risankizumab was very effective in a real-world clinical practice with a favorable safety profile in Korean patients with moderate-to-severe psoriasis.
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Sarcoidosis is a systemic granulomatous disorder of unknown etiology characterized by granuloma formation. Due to the limited incidence of sarcoidosis in pediatric patients, little is known about the clinical course of this disease. A combination of clinical, radiologic, and pathologic examination is necessary to exclude other differential diagnoses (i.e., infection and granulomatous inflammatory disorder) and establish a diagnosis of sarcoidosis. Here, we report a case of histologically confirmed sarcoidosis initially misdiagnosed as hepatosplenic abscesses in an 11-year-old male. Treatment with corticosteroids improved his symptoms and resolved his skin and hepatosplenic lesions. A three-year follow-up was uneventful. This study emphasizes the importance of considering sarcoidosis in children presenting with findings of multi-organ involvement in the presence of histologic evidence of granuloma.
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The hypoglossal canal (HC) is an unusual location of the posterior fossa dural arteriovenous fistula (AVF), which usually occurs in the transverse or sigmoid sinus. Herein, we report a case of HC dural AVF successfully treated with transvenous coil embolization using detachable coils in a 68-year-old woman who presented with headache and left pulsatile tinnitus for 2 months. Brain magnetic resonance imaging (MRI) and cerebral angiography revealed left HC dural AVF. The pulsatile bruit disappeared immediately after the procedure. Follow-up MRI showed complete disappearance of the fistula. Precise localization of the fistula through careful consideration of the anatomy and transvenous coil embolization using a detachable coil can facilitate the treatment for HC dural AVF.