Objective:To analyze the diagnostic value of bedside capsule endoscopy in patients with acute or severe gastrointestinal bleeding.Methods:Clinical data from patients who underwent bedside capsule endoscopy due to acute or severe suspected gastrointestinal bleeding in Nanfang Hospital, Southern Medical University from June 2018 to September 2021 were analyzed retrospectively. The efficacy of capsule endoscopy in detecting upper gastrointestinal tract and small intestinal bleeding was evaluated.Results:A total of 74 patients underwent bedside capsule endoscopy for suspected acute or severe gastrointestinal bleeding. Five patients were excluded due to failure of examination due to retention of capsule endoscope in the gastric lumen, and 69 were included in the study, of whom 54 patients with a definitive diagnosis of gastrointestinal hemorrhage. The positive detection rate of the capsule endoscopy was 83.33% (45/54), including 17 cases of ulcer, 5 cases of erosion, 5 cases of vascular malformation, 4 protrusion mass, 4 diverticulum, 5 obscure gastrointestinal bleeding, 1 stenosis , 1 active mucosal blood exudation, 1 gastric retention, 1 mucosal swelling, and 1 mucosal wrinkle change. The sensitivity and specificity of capsule endoscopy in the diagnosis of upper gastrointestinal bleeding were 92.31% (12/13) and 75.00% (3/4) respectively. The sensitivity and specificity of capsule endoscopy for diagnosing small intestinal bleeding were 80.49% (33/41) and 90.91% (10/11) respectively.Conclusion:Bedside capsule endoscopy demonstrates high sensitivity and specificity in the diagnosis of gastrointestinal bleeding, showing potential advantages in bedside applications for acute and severe gastrointestinal bleeding.

Objective:To analyze the diagnostic value of bedside capsule endoscopy in patients with acute or severe gastrointestinal bleeding.Methods:Clinical data from patients who underwent bedside capsule endoscopy due to acute or severe suspected gastrointestinal bleeding in Nanfang Hospital, Southern Medical University from June 2018 to September 2021 were analyzed retrospectively. The efficacy of capsule endoscopy in detecting upper gastrointestinal tract and small intestinal bleeding was evaluated.Results:A total of 74 patients underwent bedside capsule endoscopy for suspected acute or severe gastrointestinal bleeding. Five patients were excluded due to failure of examination due to retention of capsule endoscope in the gastric lumen, and 69 were included in the study, of whom 54 patients with a definitive diagnosis of gastrointestinal hemorrhage. The positive detection rate of the capsule endoscopy was 83.33% (45/54), including 17 cases of ulcer, 5 cases of erosion, 5 cases of vascular malformation, 4 protrusion mass, 4 diverticulum, 5 obscure gastrointestinal bleeding, 1 stenosis , 1 active mucosal blood exudation, 1 gastric retention, 1 mucosal swelling, and 1 mucosal wrinkle change. The sensitivity and specificity of capsule endoscopy in the diagnosis of upper gastrointestinal bleeding were 92.31% (12/13) and 75.00% (3/4) respectively. The sensitivity and specificity of capsule endoscopy for diagnosing small intestinal bleeding were 80.49% (33/41) and 90.91% (10/11) respectively.Conclusion:Bedside capsule endoscopy demonstrates high sensitivity and specificity in the diagnosis of gastrointestinal bleeding, showing potential advantages in bedside applications for acute and severe gastrointestinal bleeding.

Objective To study the correlation between single nucleotide polymorphisms at loci rs4535211,rs75885714,and rs7653834 of phosphatidylinositol-specific phospholipase 2 (PLCL2) gene and large artery atherosclerotic (LAA) ischemic stroke.Methods A total of 105 patients with newly diagnosed LAA ischemic stroke admitted to the Second Affiliated Hospital of Xinjiang Medical University from July 2021 to July 2022 were selected as the observation group,and 103 patients with gender and age matching phys-ical examination in this hospital during the same period were selected as the control group. The clinical data and serum inflammatory markers were collected and compared between the two groups.Genotypes of PLCL2 gene rs4535211,rs75885714 and rs7653834 loci in the two groups were detected,and genotype and allele fre-quencies were calculated.Results The levels of C-reactive protein (CRP),interleukin-6 (IL-6),neutrophil to lymphocyte ratio (NLR),monocyte to high-density lipoprotein-cholesterol ratio (MHR),platelet to lympho-cyte ratio (PLR) and D-dimer in the observation group were higher than those in the control group.The level of high density lipoprotein-cholesterol (HDL-C) was lower than that of the control group (P<0.05). rs7653834 locus was C/C,C/T,T/T genotypes,and the difference between the two groups was statistically significant (P<0.05).The levels of C/C,T/C and T/T genotypes NLR and PLR at rs7653834 locus were sta-tistically significant between the two groups (P<0.05).The analysis results of co-dominant model,dominant model and overdominant model showed that there was statistical significance in rs7653834 locus genotype be-tween the two groups (P<0.05).Conclusion There may be a potential association between rs7653834 locus polymorphism of PLCL2 gene and LAA type ischemic stroke.

Objective:The incidence of occupational burnout among emergency department healthcare workers is high,and their occupational health deserves attention.Establishing a comprehensive occupational health system in medical institutions is crucial.This study aims to understand the current status of occupational burnout among emergency department healthcare workers,analyze its influencing factors,and provide references for preventing burnout in this population. Methods:A cross-sectional survey was conducted using convenience sampling through the Questionnaire Star platform from December 2022 to January 2023 among emergency department healthcare workers.The Maslach Burnout Inventory-General Survey(MBI-GS)scale was used to assess the level of occupational burnout,and univariate analysis and binary Logistic regression analysis were employed to explore the influencing factors of burnout. Results:A total of 1 173 valid questionnaires were collected,with 946(80.65％)respondents experiencing occupational burnout.The proportions of mild-to-moderate and severe burnout were 73.57％and 7.08％,respectively.The scores for the three dimensions of burnout among emergency department healthcare workers were as follows:emotional exhaustion(EE)2.33±0.31;depersonalization(DP)1.88±0.28;low personal accomplishment(LPA)3.20±0.39.The overall score was 2.46±0.22.Factors associated with occupational burnout included being an only child(OR=1.362,95％CI-0.707 to-0.058),the average number of night shifts per month(OR=1.167,95％CI 0.091 to 0.272),and personal experience of workplace violence(OR=1.094,95％CI 0.027 to 0.195)(all P＜0.05). Conclusion:The incidence of occupational burnout is high among emergency department healthcare workers.Effective measures should be taken by management to promptly intervene,reduce burnout,and ensure the smooth functioning of emergency medical services.

Objective:To investigate epidemiological and clinical characteristics of botulism, and the adverse events among those received botulinum antitoxin treatment.Methods:Patients with discharge diagnosis as botulism in the Second Affiliated Hospital of Xinjiang Medical University were enrolled between 2017 and 2021. The epidemiological and clinical characteristics were evaluated. Infection and mechanical ventilation as in-hospital outcomes according to baseline characteristics were analyzed. Patients with and without the interested outcomes were compared. The adverse outcomes among those received botulinum antitoxin treatment were investigated. Those with and without the adverse outcomes were also compared.Results:Sixty-seven cases of botulism were enrolled, and most cases got sick between January and March (32/67, 47.8%); among them 62 cases were Han ethnicity (92.5%); prevalence was highest in Aksu region (15/67, 22.4%); commonly seen symptoms and signs included fatigue (58/67, 86.6%), dysphagia (48/67, 71.6%), dizziness (42/67, 62.7%), ptosis (42/67, 62.7%), blurred vision (41/67, 61.2%), and limb weakness (35/67, 52.2%). Compared with patients without in-hospital infection ( n=52), patients with in-hospital infection ( n=15) were more likely to have severe botulism (0/52 vs 5/15, χ 2=19.79, P<0.001), diplopia (16/52, 30.8% vs 11/15, χ 2=8.77, P=0.003), dysarthria (17/52, 32.7% vs 11/15, χ 2=7.91, P=0.005), consciousness disorder (1/52, 1.9% vs 4/15, χ 2=10.32, P=0.008). Compared with patients without mechanical ventilation (62/67, 92.5%), patients with mechanical ventilation (5/67, 7.5%) were more likely to have severe botulism (5/5 vs 0/62, χ 2=41.17, P<0.001), and consciousness disorder (4/5 vs 1/62, 1.6%, χ 2=29.58, P<0.001). Among 67 cases of botulism, 19 cases (28.4%) had adverse events after receiving antitoxin treatment, with an average of 6.5 days from the antitoxin treatment beginning to the adverse event onset; among the 19 cases, 18 cases (94.7%) had rash. Age, sex, and severity did not differ between the groups with ( n=19) and without adverse events ( n=48) after receiving antitoxin treatment. Conclusions:Fatigue, dysphagia, dizziness, ptosis were the most frequent symptoms and signs in the botulism in Xinjiang Uygur Autonomous Region, China. Infection was a commonly seen complication of botulism, and proactive prevention and close monitoring were needed. Adverse events after receiving antitoxin were prevalent, and might not be associated with age, sex, and severity of botulism.

Objective:To investigate the expression levels of serum miR-126 and miR-9 in patients with wet age-related macular degeneration (wAMD) and their relationship with vascular endothelial growth factor (VEGF) and central macular thickness (CMT).Methods:A total of 73 wAMD patients(observation group) admitted to the ophthalmology department of Taizhou Municipal Hospital from May 2020 to May 2021 and 60 healthy subjects (control group) who underwent physical examination during the same period were selected. Real-time quantitative polymerase chain reaction (qRT-PCR) was used to detect the expression levels of miR-126 and miR-9 in serum of the two groups. Serum angiogenesis regulatory factors [VEGF, tissue inhibitor of melalloproteinuses-1 (TIMP-1), endostatin (ES), platelet-derived growth factor (PDGF)] were detected by enzyme-linked immunosorbent assay (ELISA), and CMT and intraocular pressure (IOP) were measured. Pearson correlation analysis was performed to determine the correlation between miR-126 and miR-9 and serum angiogenesis regulatory factor levels, CMT and IOP. The diagnostic value of miR-126 and miR-9 in wAMD was analyzed by receiver operating characteristic (ROC) curve.Results:The relative expression level of serum miR-126 in observation group was significantly lower than that in control group ( P<0.05) , while the relative expression level of serum miR-9 was significantly higher than that in control group ( P<0.05). The levels of serum VEGF and PDGF in observation group were significantly higher than those in control group (all P<0.05), while the levels of serum TIMP-1 and ES were significantly lower than those in control group (all P<0.05). CMT and IOP in observation group were significantly higher than those in control group (all P<0.05). The expression level of serum miR-126 in observation group was negatively correlated with serum VEGF, PDGF, CMT and IOP ( r=-0.275, -0.523, -0.302, -0.542, all P<0.05), and was positively correlated with TIMP-1 and ES ( r=0.460, 0.263, all P<0.05). Serum miR-9 expression level was positively correlated with serum VEGF, PDGF, CMT and IOP ( r=0.434, 0.438, 0.396, 0.307, all P<0.05), and was negatively correlated with TIMP-1 and ES ( r=-0.256, -0.310, all P<0.05). The area under curve (AUC) values of serum miR-126 and miR-9 in diagnosing wAMD were 0.713 and 0.847 respectively. Conclusions:The expression level of serum miR-126 is significantly decreased while the expression level of miR-9 is significantly increased in patients with wAMD. miR-126 is negatively correlated with VEGF and CMT, and miR-9 is positively correlated with VEGF and CMT, which may aggravate the disease by promoting the inflammatory response. The detection of expression levels of serum miR-126 and miR-9 is helpful to provide the reference basis for early diagnosis of wAMD and early prevention and treatment.

Objective:To evaluate the clinical value of 18F-FDG PET/CT findings in patients with T1-2 lung adenocarcinoma spread through air spaces (STAS). Methods:From June 2018 to June 2020, a total of 80 patients (36 males, 44 females; age: 19-84 (59.9±11.8) years) with surgically and pathologically confirmed T1-2 lung adenocarcinomas in Jiangmen Central Hospital were enrolled retrospectively. All patients underwent 18F-FDG PET/CT examination preoperatively and were divided into STAS positive and negative groups according to the histopathological diagnosis. Independent-sample t test, Mann-Whitney U test, χ2 test and Fisher exact test were used to analyze differences of gender, age, tumor biomarker, SUV max, SUV mean, features showed on high resolution CT (HRCT; including diameter, lesion location, morphology, density, lobulated sharp, spiculated sign, vacuole sign, air bronchgram sign, pleural traction and para-emphysema), and pathologic findings (micropapillary pattern, lymphvascular inversion, pleural inversion and lymph node metastasis) between the two groups, and then multivariate logistic regression was performed. The ROC curve was employed to evaluate the predictive value of parameters for STAS of T1-2 lung adenocarcinomas. Results:Among the 80 patients with T1-2 lung adenocarcinomas, 12 (15.0%) were STAS positive and 68 (85.0%) were STAS negative. Significant differences were shown in SUV max, SUV mean, micropapillary pattern, lymphvascular inversion and lymph node metastasis between the two groups ( z values: -2.60, -2.17; χ2 values: 29.56, 9.28, 17.40, P<0.001 or P<0.05). SUV max (odds ratio ( OR): 1.348 (95% CI: 1.071-1.695), P=0.011), micropapillary pattern ( OR=47.444 (95% CI: 4.592-490.214), P=0.001) and lymph node metastasis ( OR=8.201 (95% CI: 1.129-59.576), P=0.038) were independent risk factors for STAS positive in multivariation logistic regression analysis. The optimum cut-off value for SUV max was 3.85 in the ROC analysis with the AUC of 0.737 (95% CI: 0.614-0.859), the sensitivity of 11/12, the specificity of 55.9%(38/68) and the accuracy of 61.2%(49/80). The AUC of the SUV max combined with micropapillary pattern and lymph node metastasis was 0.945 (95% CI: 0.892-0.999) with the sensitivity of 11/12, the specificity of 88.2%(60/68) and the accuracy of 88.7%(71/80). Conclusions:The PET/CT characteristics may be useful in differentiating STAS status among patients with T1-2 lung adenocarcinoma. SUV max >3.85, pathological papillary pattern and lymph node metastasis are independent risk factors to predict STAS.

Objective:To investigate the factors associated with delay in anticoagulant therapy in patients with cerebral venous sinus thrombosis (CVST) and its effect on outcome.Methods:Patients with CVST admitted to Changhai Hospital, Naval Medical University from January 2010 to August 2021 were retrospectively enrolled. Patients were divided into early anticoagulation group and late anticoagulation group by the median time interval from first symptom to initiation of anticoagulation. The modified Rankin Scale was used for outcome assessment at 90 d after onset. 0-2 scores were defined as good outcome and 3-6 were defined as poor outcome. Demographic and clinical data were compared for the early versus late anticoagulation group and for the good versus poor outcome groups. Multivariable logistic regression was used to identify independent influencing factors of delay in anticoagulation and the correlation of delay in anticoagulation with poor outcome. Results:A total of 131 patients were included, their age was 40.07±15.11 years old, and 68 (51.91%) were male. Of these, 65 patients (49.62%) were in the early anticoagulation group and 14 (10.69%) were in the poor outcome group. Compared with the late anticoagulation group, the early anticoagulation group had a significantly higher proportion of patients with seizures and brain parenchymal damage as well as higher D-dimer levels on admission, while the proportion of patients with visual impairment/papilloedema was significantly lower (all P<0.05). Compared with the good outcome group, the poor outcome group had significantly higher proportions of patients with seizures, dyskinesia, impaired consciousness, low Glasgow Coma Scale score, and brain parenchymal damage as well as higher D-dimer, total cholesterol and low density lipoprotein cholesterol levels, sites of thrombus involvement were more common in the superior sagittal and straight sinuses, and significantly lower proportions of patients with headache and lower albumin levels on admission (all P<0.05). Multivariate logistic regression analysis showed that visual impairment/papilloedema (odds ratio [ OR] 0.119, 95% confidence interval [ CI] 0.030-0.473; P=0.002) and brain parenchymal damage ( OR 1.341, 95% CI 1.042-1.727; P=0.023) were independently associated with a delay in anticoagulation treatment, and a delay in anticoagulation treatment ( OR 6.102, 95% CI 1.185-30.504; P=0.030) and D-dimer level on admission ( OR 1.299, 95% CI 1.141-1.480; P<0.001) were the independent predictors of poor outcome in patients with CVST. Conclusions:Visual impairment/papilloedema and absence of brain parenchymal damage on cranial imaging are the independent risk factors for delay in anticoagulation in patients with CVST. The delay in anticoagulation is strongly associated with the poor outcome in patients with CVST.

Background: Cardiopulmonary resuscitation (CPR) strategies in COVID-19 patients differ from those in patients suffering from cardiogenic cardiac arrest. During CPR, both healthcare and non-healthcare workers who provide resuscitation are at risk of infection. The Working Group for Expert Consensus on Prevention and Cardiopulmonary Resuscitation for Cardiac Arrest in COVID-19 has developed this Chinese Expert Consensus to guide clinical practice of CPR in COVID-19 patients. Main recommendations: 1) A medical team should be assigned to evaluate severe and critical COVID-19 for early monitoring of cardiac-arrest warning signs. 2) Psychological counseling and treatment are highly recommended, since sympathetic and vagal abnormalities induced by psychological stress from the COVID-19 pandemic can induce cardiac arrest. 3) Healthcare workers should wear personal protective equipment (PPE). 4) Mouth-to-mouth ventilation should be avoided on patients suspected of having or diagnosed with COVID-19. 5) Hands-only chest compression and mechanical chest compression are recommended. 6) Tracheal-intubation procedures should be optimized and tracheal-intubation strategies should be implemented early. 7) CPR should be provided for 20-30 min. 8) Various factors should be taken into consideration such as the interests of patients and family members, ethics, transmission risks, and laws and regulations governing infectious disease control. Changes in management: The following changes or modifications to CPR strategy in COVID-19 patients are proposed: 1) Healthcare workers should wear PPE. 2) Hands-only chest compression and mechanical chest compression can be implemented to reduce or avoid the spread of viruses by aerosols. 3) Both the benefits to patients and the risk of infection should be considered. 4) Hhealthcare workers should be fully aware of and trained in CPR strategies and procedures specifically for patients with COVID-19.

Objective:To explore the effects of acute paraquat poisoning on cognitive function of patients through neuropsychologic test.Methods:In June 2019, 36 patients with acute paraquat poisoning in the emergency department of a provincial hospital in Hebei Province were selected as the case group. 36 healthy individuals were selected as control group. The cognitive function and depressive state were assessed by mini mental state scale, auditory word learning test, digit span test, connection test, Boston Naming Test and geriatric depression scale.Results:The results of Mini-Mental State examination showed that the total score of the case group was lower than that of the control group, the difference was statistically significant ( P<0.05) . The results of the Auditory Vocabulary Learning test showed that the scores of delayed recall, clue recall, corrective ability and semantic learning strategies of the case group were significantly lower than those in the control group ( P<0.05) . There was no significant difference in the scores of immediate memory between the two groups ( P>0.05) . The scores of Digit Span test and Boston Naming test in the control group were higher than those in the case group, the Trail Making test time in the control group was shorter than that in the case group, and the differences were statistically significant ( P<0.05) . Conclusion:Acute paraquat poisoning can impair human cognitive ability to a certain extent.