1.Application of balloon-occluded retrograde transvenous obliteration in treatment of liver cirrhosis complications
Lixia XIN ; Hongbin ZHU ; Xiao LIU ; Chunqing ZHANG
Journal of Clinical Hepatology 2026;42(2):452-456
Gastric variceal rupture and bleeding and hepatic encephalopathy are common and life-threatening complications in decompensated cirrhosis. As a minimally invasive interventional technique, balloon-occluded retrograde transvenous obliteration (BRTO) has made significant progress in the clinical management of gastric varices and hepatic encephalopathy in recent years. This article systematically reviews the technical principles, indications (e.g., isolated gastric varices and refractory hepatic encephalopathy), clinical efficacy (an acute hemostasis rate of 85% — 95%, a 1-year rebleeding rate of <15%, and an improvement rate of 60% — 80% for hepatic encephalopathy), and safety (including complications such as renal impairment and elevated portal vein pressure) of BRTO. Meanwhile, this article discusses the advantages and disadvantages of BRTO and conventional treatment modalities (e.g., transjugular intrahepatic portosystemic shunt and endoscopic treatment) and reviews the latest technological improvements in recent years, such as coil-assisted retrograde transvenous obliteration and plug-assisted retrograde transvenous obliteration. Future research should focus on the precision of patient selection (e.g., stratification based on hemodynamic parameters), the optimization of embolic materials (e.g., application of new biodegradable embolic agents), and the development of individualized treatment regimens, so as to improve efficacy and reduce the risk of complications.
2.Mechanism Exploration of Doxorubicin and Sepsis Induced Myocardial Injury: Differences and Convergences
Tao ZHANG ; Zihan NAN ; Lixia LIU ; Jiaqi LIU ; Xiukai CHEN ; Xiaoting WANG ; Suwen SU
Medical Journal of Peking Union Medical College Hospital 2026;17(1):23-32
Doxorubicin (DOX)-induced cardiotoxicity and sepsis-induced myocardial injury (SIMI) represent significant clinical challenges in patients undergoing chemotherapy, sharing a common pathological basis of oxidative stress and mitochondrial dysfunction. Ferroptosis, an iron-dependent form of regulated cell death driven by lipid peroxidation, has recently been shown to play a critical role in DOX-induced cardiotoxicity and lipopolysaccharide (LPS)-induced SIMI. This article systematically reviews the mechanisms underlying myocardial injury caused by DOX and sepsis, identifying ferroptosis as a central common pathway. DOX triggers a burst of reactive oxygen species within mitochondria and inhibits glutathione peroxidase 4 (GPX4) activity through redox cycling of its quinone group and high-affinity accumulation in mitochondrial cardiolipin. LPS, by activating pattern recognition receptors and related inflammatory signaling pathways, provokes a cytokine storm and mitochondrial dysfunction. Both can disrupt the core regulatory axis of cysteine-glutathione (GSH)-GPX4, synergistically promoting ferroptosis in cardiomyocytes. Moreover, epigenetic regulation plays a key role in DOX- and LPS-induced cardiomyocyte ferroptosis and may serve as a promising therapeutic target. A deeper understanding of the ferroptosis mechanism and its epigenetic regulatory network in the synergistic injury induced by DOX and sepsis is of great importance for developing novel strategies to mitigate chemotherapy-related cardiotoxicity and improve outcomes in cancer patients with concurrent infections.
3.Explainable Machine Learning Model for Predicting Prognosis in Patients with Malignant Tumors Complicated by Acute Respiratory Failure: Based on the eICU Collaborative Research Database in the United States
Zihan NAN ; Linan HAN ; Suwei LI ; Ziyi ZHU ; Qinqin ZHU ; Yan DUAN ; Xiaoting WANG ; Lixia LIU
Medical Journal of Peking Union Medical College Hospital 2026;17(1):98-108
To develop and validate a model for predicting intensive care unit (ICU) mortality risk in patients with malignant tumors complicated by acute respiratory failure (ARF) based on an explainable machine learning framework. Clinical data of patients with malignant tumors and ARF were extracted from the eICU Collaborative Research Database in the United States, including demographic characteristics, comorbidities, vital signs, laboratory test indicators, and major interventions within the first 24 hours after ICU admission.The study outcome was ICU death.Enrolled patients were randomly divided into a training set and a validation set at a ratio of 7:3.Predictor variables were selected using least absolute shrinkage and selection operator (LASSO) regression.Five machine learning algorithms-extreme gradient boosting (XGBoost), support vector machine (SVM), Logistic regression, multilayer perceptron (MLP), and C5.0 Decision Tree-were employed to construct predictive models.Model performance was evaluated based on the area under the receiver operating characteristic curve (AUC), accuracy, sensitivity, and other metrics.The optimal model was further interpreted using the Shapley additive explanations (SHAP) algorithm. A total of 3196 patients with malignant tumors complicated by ARF were included.The training set comprised 2, 261 patients and the validation set 935 patients; 683 patients died during ICU stay, while 2513 survived.LASSO regression ultimately selected 12 variables closely associated with patient ICU outcomes, including sepsis comorbidity, use of vasoactive drugs, and within the first 24 hours after ICU admission: minimum mean arterial pressure, maximum heart rate, maximum respiratory rate, minimum oxygen saturation, minimum serum bicarbonate, minimum blood urea nitrogen, maximum white blood cell count, maximum mean corpuscular volume, maximum serum potassium, and maximum blood glucose.After model evaluation, the XGBoost model demonstrated the best performance.The AUCs for predicting ICU mortality risk in the training and validation sets were 0.940 and 0.763, respectively; accuracy was 88.3% and 81.2%;sensitivity was 98.5% and 95.9%.Its predictive performance also remained optimal in sensitivity analyses.SHAP analysis indicated that the top five variables contributing to the model's predictions were minimum oxygen saturation, minimum serum bicarbonate, minimum mean arterial pressure, use of vasoactive drugs, and maximum white blood cell count. This study successfully developed a mortality risk prediction model for ICU patients with malignant tumors complicated by ARF based on a large-scale dataset and performed explainability analysis.The model aids clinicians in early identification of high-risk patients and implementing individualized interventions.
4.Bidirectional two-sample Mendelian randomization study on causality between colorectal cancer and sepsis
Huanmei LIU ; Zhijun YU ; Li JIN ; Ting GAO ; Lixia YIN
Chinese Journal of Nosocomiology 2025;35(6):845-849
OBJECTIVE To observe the causal association between colorectal cancer and sepsis by means of bidirec-tional two-sample Mendelian randomization(MR).METHODS The Genome Wide Association Study(GWAS)datasets for colorectal cancer and sepsis were retrieved from the GWAS databases between its establishment and Feb.1,2024.MR was carried out for the colorectal cancer and sepsis interacting as exposure and outcome factors.The single nucleotide polymorhpism(SNPs)that were significantly associated with the exposure factors were screened out by setting P as less than 5.0× 10-8,r2 less than 0.001,the genetic distance 10,000 kb.The SNPs that were remarkably associated with the exposure factors were extracted from the GWAS datasets of the outcome variables,the instrumental variable were finally obtained,the inverse variance weighting(IVW)was taken as the main approach for the causal inference.The level pleiotropy was tested by using MR Egger method and MR-PRESSO,the heterogeneity was tested by IVW method and MR-Egger method,the sensitivity was analyzed by leave-one-out method,and the robustness of the result was tested.RESULTS A total of 30 SNPs were screed out by setting the colorectal cancer as exposure factor and the sepsis as outcome variable(F>10);there was causal as-sociation between the colorectal cancer and the sepsis(OR=28.955,95%CI:1.215 to 690.052,P=0.037).Totally 14 SNPs were screened out by setting the sepsis as exposure factor and the colorectal cancer as treatment variable(F>10),and there was no causal association between the colorectal cancer and the sepsis(OR=0.999,95%CI:0.997 to 1.002,P=0.674).There was no level pleiotropy in the instrumental variables during the two times of MR analysis;there was no heterogeneity in the instrumental variables,and the result of the MR analysis was robust.CONCLUSION There is causal association between the colorectal cancer and the increases of risk of sepsis.But there is no causal association between the sepsis and the increase of risk of colorectal cancer.
5.Bidirectional two-sample Mendelian randomization study on causality between colorectal cancer and sepsis
Huanmei LIU ; Zhijun YU ; Li JIN ; Ting GAO ; Lixia YIN
Chinese Journal of Nosocomiology 2025;35(6):845-849
OBJECTIVE To observe the causal association between colorectal cancer and sepsis by means of bidirec-tional two-sample Mendelian randomization(MR).METHODS The Genome Wide Association Study(GWAS)datasets for colorectal cancer and sepsis were retrieved from the GWAS databases between its establishment and Feb.1,2024.MR was carried out for the colorectal cancer and sepsis interacting as exposure and outcome factors.The single nucleotide polymorhpism(SNPs)that were significantly associated with the exposure factors were screened out by setting P as less than 5.0× 10-8,r2 less than 0.001,the genetic distance 10,000 kb.The SNPs that were remarkably associated with the exposure factors were extracted from the GWAS datasets of the outcome variables,the instrumental variable were finally obtained,the inverse variance weighting(IVW)was taken as the main approach for the causal inference.The level pleiotropy was tested by using MR Egger method and MR-PRESSO,the heterogeneity was tested by IVW method and MR-Egger method,the sensitivity was analyzed by leave-one-out method,and the robustness of the result was tested.RESULTS A total of 30 SNPs were screed out by setting the colorectal cancer as exposure factor and the sepsis as outcome variable(F>10);there was causal as-sociation between the colorectal cancer and the sepsis(OR=28.955,95%CI:1.215 to 690.052,P=0.037).Totally 14 SNPs were screened out by setting the sepsis as exposure factor and the colorectal cancer as treatment variable(F>10),and there was no causal association between the colorectal cancer and the sepsis(OR=0.999,95%CI:0.997 to 1.002,P=0.674).There was no level pleiotropy in the instrumental variables during the two times of MR analysis;there was no heterogeneity in the instrumental variables,and the result of the MR analysis was robust.CONCLUSION There is causal association between the colorectal cancer and the increases of risk of sepsis.But there is no causal association between the sepsis and the increase of risk of colorectal cancer.
6.Effect of prognosis appearance of the combination of microneedle array radiofrequency and CO2 array laser on psychological stress response of patients with facial acne scar
Lifan LIU ; Lixia XIE ; Xiaoxia YANG ; Bailin CHEN ; Yonghong LU ; Qingbiao WA
China Medical Equipment 2025;22(3):83-87
Objective:To explore the effect of prognosis appearance of the combination of microneedle array radiofrequency and CO2 array laser on psychological stress response of patients with facial acne scar.Methods:A total of 100 patients with facial acne scar,who admitted to Chengdu Second People's Hospital from August 2020 to August 2020,were selected,and they were divided into study group and control group,with 50 cases in each group.Study group adopted combined treatment with microneedle array radiofrequency and CO2 array laser,and control group adopted microneedle array radiofrequency to conduct treatment.The curative effect after treatment was compared between two groups.The Vancouver scar scale(VSS)was adopted to score the scar condition of patients,and Hamilton anxiety(HAMA)rating scale,Hamilton depression(HAMD)of rating scale and self-esteem scale(SES)were adopted to evaluate the psychological stress response of patients,and the score of the comprehensive evaluation questionnaire of quality of life(GQOLI-74 score)was adopted to evaluate the difference of quality of life of patients between before and after treatment.Results:After treatment,the overall curative effect of study group was 92.00%,which was better than 72.00%of control group,and the difference was significant(x2=6.775,P<0.05).The VSS scores of study group after received treatment of 2,4 times were significantly lower than those before treatment,and were lower than those of control group,and the differences of those between two groups were significant(t=5.850,9.040,P<0.05),respectively.After treatment,the SES scores of two groups all rose,and the HAMD and HAMA scores of two groups all reduced,and the three scores of study group were all better than those of control group,and the differences of them between two groups were significant(t=3.456,3.909,6.063,P<0.05).Pearson correlation showed that the VSS score was negatively correlated with the SES score(r=-0.249,P<0.05),and was positively correlated with the HAMD score and the HAMA score(r=0.653,0.695,P<0.05),respectively.After treatment,the GQOLI-74 scores of each indicator(material and life,physical function,psychological function,and social function)of two groups rose all,and the GQOLI-74 scores of study group were all better than those of control group,and the differences of them between two groups were significant(t=4.324,7.497,3.870,4.534,P<0.05),respectively.Conclusion:The combination of microneedle array radiofrequency and CO2 array laser has better curative effect in treating facial acne scar,which can effectively promote prognosis appearance,and relieve psychological stress response,and improve the quality of life.
7.Investigation on the current nursing practice status of prone position ventilation in patients with moderate to severe acute respiratory distress syndrome among intensive care unit nurses in Shandong province
Lixia CHANG ; Jicheng ZHANG ; Min DING ; Fengzhi CHEN ; Yan CHEN ; Beibei LIU ; Li CHEN ; Xue BAI
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2025;32(1):67-72
Objective To understand the nursing practice of prone position ventilation for patients with moderate to severe acute respiratory distress syndrome(ARDS)in intensive care unit(ICU)in Shandong province,so as to provide basis for standardizing the nursing practice process of prone position ventilation and carrying out training for hospitals.Methods A self-made questionnaire was used,and convenience sampling was adopted.From September 15th to November 5th,2023,ICU nurses were selected from various hospital levels in Shandong province to investigate the obstructive factors of prone ventilation implementation,the weak links in nursing practice and status,and the occurrence of complications.Results A total of 1 188 questionnaires were collected,of which 991 were valid.92.8%(920/991)of nurses had performed prone position ventilation.The biggest obstacle to the implementation of prone position ventilation was the complexity of patient treatments and multiple devices involved[74.6%(686/920)].Regarding the status of training,90.5%(897/991)of nurses had received training on prone position ventilation and 77.0%(763/991)of nurses felt that training was needed.As for pre-operation assessment,more than 80.0%of nurses evaluated patients'vital signs,airway and secretions and so on,among which the evaluation awareness of analgesia was the worst[81.6%(751/920)].As for the main points of implementation,only 14.0%(129/920)of nurses chose the opposite side of the most important pipeline as the turning direction;48.6%(447/920)of nurses chose the anti-Trendelenburg position;36.3%(334/920)of nurses chose to ventilate≥12 hours.Facial edema[81.7%(752/920)],skin pressure injury[78.9%(726/920)]and eye complication[75.8%(697/920)]were the top 3 most frequent complications.Conclusions ICU nurses'prone position ventilation practices were generally line with the nursing team standard for prone position of adult mechanically ventilated patients and the best evidence recommendation,and needs to be further standardized in aspects of turning direction,position management,ventilation duration,and enteral nutrition management.It is recommended that nursing managers at all levels of hospitals further improve the quality of nursing practice of prone position ventilation according to relevant evidence-based evidence and the actual situation of hospitals.
8.A cross-sectional study of anxiety disorders in adults in Inner Mongolia Autonomous Region
Xin WANG ; Lixia CHEN ; Tingting ZHANG ; Ping LYU ; Dongsheng LYU ; Zhaorui LIU ; Jie YAN ; Ruiqi WANG ; Hua DING ; Yinxia BAI ; Yueqin HUANG ; Xiaojie SUI
Chinese Mental Health Journal 2025;39(5):385-391
Objective:To describe the prevalence of anxiety disorders and its distribution in Inner Mongolia Autonomous Region,and to explore the relevant factors of anxiety disorders.Methods:From June 2019 to Decem-ber 2019,representative multi-stage disproportionate stratified sampling procedure was used to sample in residents aged 18 and over in the Inner Mongolia Autonomous Region.All respondents were face-to-face interviewed by trained interviewers.Composite International Diagnostic Interview-3.0(CIDI-3.0)was used to diagnose anxiety disorders according to the criteria and definition of the Diagnostic and Statistical Manual of Mental Disorders,Fourth Edition(DSM-Ⅳ).Chi-square test and multivariate logistic regression analysis were used for statistical anal-ysis.Results:Totally 12 315 people were interviewed in the survey.The weighted 12-mouth prevalence rate of any anxiety disorder was 4.64%,and the lifetime prevalence rate was 6.25%.The weighted 12-month prevalence rate of anxiety disorders was higher in female than that in male(5.38%vs.3.92%).The rate was higher in rural resi-dents than that in urban residents(5.67%vs.3.95%).The rate was higher in people with chronic diseases than that in people without chronic diseases(6.81%vs.2.29%).Logistic regression analysis showed that unmarried(OR=2.32,95%CI:1.31-4.10),separated/divorced(OR=2.49,95%CI:1.33-4.67),in debt(OR=1.55,95%CI:1.04-2.32),chronic disease(OR=2.22,95%CI:1.39-3.53),family history of anxiety disorders(OR=12.05,95%CI:8.78-16.53),poor sleep(OR=2.64,95%CI:1.97-3.54)were risk factors of occurrence of anxiety disorders,while junior high school(OR=0.65,95%CI:0.44-0.96)was protective factor of anxiety disor-ders.Conclusion:Adults with chronic diseases,poor sleep,unmarried or separated/divorced,family history of anxi-ety disorders,and financial debt are at higher risk groups of anxiety disorder in Inner Mongolia Autonomous Re-gion.
9.A cross-sectional study of mood disorder in Inner Mongolia Autonomous Region
Peifeng YANG ; Ruiqi WANG ; Tingting ZHANG ; Hua DING ; Lixia CHEN ; Zhaorui LIU ; Ping LYU ; Dongsheng LYU ; Jie YAN ; Yinxia BAI ; Yueqin HUANG ; Xiaojie SUI
Chinese Mental Health Journal 2025;39(4):308-314
Objective:To describe the prevalence and distributions of mood disorder in Inner Mongolia Au-tonomous Region,and analyze the related risk factors.Methods:The multistage stratified sampling method with un-equal probability was used to select permanent residents aged 18 years and over in Inner Mongolia Autonomous Re-gion.The Composite International Diagnostic Interview 3.0 was used as a diagnostic tool.Mood disorders were di-agnosed according to the Diagnostic and Statistical Manual of Mental Disorders Fourth Edition(DSM-Ⅳ).Single and multivariate analyses were used to investigate the related factors of mood disorders.Results:Totally,12 315 community residents were interviewed in the survey.The weighted 12-month prevalence and lifetime prevalence of mood disorder were 5.4%and 8.7%,respectively.Weighted 12-month prevalence of depressive disorder was 4.9%,and that of bipolar disorder was 0.3%.Among all subtypes of mood disorder,the 12-month prevalence rate of major depressive disorder(3.1%)was the highest.Multivariate logistic regression analysis showed that female,unmarried,separated or divorced,unemployment,family history,other mental disorders,sleep disorders and chronic diseases(OR=1.56,2.80,2.07,1.42,13.46,7.97,3.23,2.13)were risk factors of mood disorder,while aged 65 years and over(OR=0.44)was protective factor of mood disorders.The lifetime consultation rate in patients with mood disorders was 15.5%,the rate of psychiatric consultation was 3.7%,the rate of medication was 1.8%.Con-clusion:It indicates that female residents and people who are unmarried,separated and divorced,unemployed,with family history,suffering from other mental disorders,suffering from sleep disorders,and suffering from chronic dis-eases may be high risk groups of mood disorders,and the utilization rate of health services is rather low in Inner Mongolia Autonomous Region.
10.Retrospective study on misidentification of bone injuries
Tinghong WANG ; Lirong QIU ; Qi LENG ; Yisi HUANG ; Wei ZHANG ; Lixia ZHANG ; Xiaodong DENG ; Zhenhua DENG ; Yun LIU
Chinese Journal of Forensic Medicine 2025;40(2):142-149
Objective This study aims to investigate controversial cases of forensic clinical re-identification of fractures,exploring the characteristics,causes,and countermeasures related to identification errors in primary bone injuries,complications,and subsequent changes.The goal is to provide identification strategies for similar cases regarding the collection of identification materials,timing,and examination method selection,ultimately establishing a paradigm for such identifications.Methods A total of 103 cases of clinical re-identification of fractures accepted by the West China Forensic Identification Center from 2020 to 2024 were collected,and the data from initial identifications and re-identifications were retrospectively analyzed.Results Male cases accounted for 69.90%of the re-identifications,with disability grade(67.96%)and injury degree(30.10%)being the primary concerns.Individual requests represented a high proportion(92.86%)in the initial assessment of disability levels,while unit or joint requests dominated the re-assessment(92.86%).The agreement rates for disability grade and injury degree were 55.26%and 59.38%,respectively.The reassessment of disability grades primarily involved fractures of limb long bones,spine,and ribs,with 75.53%of opinions resulting in downgraded disability levels.Rib,orbital,and nasal bone fractures were the main focus in injury degree reassessments,with 84.62%of opinions indicating aggravated injuries.The consistency rates for fracture identification in disability grade assessments was 92.21%,while rates for injury degree and sequelae were 65.63%and 48.94%,respectively.Inconsistencies in identifying damage facts—including the presence of fractures,distinguishing between fresh and old fractures,and determining the nature of fractures and sequelae—were primarily noted in rib,orbital,and nasal bone fractures.The utilization rate of CT metadata in initial evaluations(25.00%)was significantly lower than in re-evaluations(95.00%).The identification time for joint mobility dysfunction after fracture in re-identifications was significantly longer than in initial identifications(P=0.0002),and the identification time for cases with agreement was significantly shorter than for cases with disagreement(P=0.036).Conclusion Image data type and identification timing are critical factors that may influence the accuracy and consistency of forensic clinical identification of bone injuries.When necessary,dynamic CT metadata in conjunction with image post-processing technology can be routinely employed to identify fractures of the ribs,orbital bones,or nasal bones,thereby reducing the risk of misidentification.

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