1.circHERC4_041 Inhibits the Fibrotic Phenotype of Cardiac Fibroblasts by Encoding Protein
Yuan GAO ; Chuan-Meng ZHOU ; Hua-Yan WU ; Ya WANG ; Ru-Shi WU ; Pei-Ying GUAN ; Jun-Tao FANG ; Jin-Dong XU ; Yu-Peng LIU ; Zhi-Qin HU ; Zhi-Xin SHAN
Chinese Journal of Biochemistry and Molecular Biology 2025;41(3):393-403
A mounting body of research suggests that circRNAs significantly contribute to the develop-ment of myocardial fibrosis.The microarray results of human circular RNA expression profile indicated that circHERC4_041 expression increased in the myocardium of patients with heart failure,RT-qPCR a-nalysis confirmed that the myocardial expression level of circHERC4_041 in individuals with heart failure were considerably elevated compared to that in healthy organ donors.Fluorescence in situ hybridization(FISH)confirmed that circHERC4_041 was abundant in the cytoplasm of human cardiomyocyte AC16.Overexpression of circHERC4_041 in mouse myocardial fibroblasts(mCFs)mediated by adenovirus in-hibited the expression of fibrosis-related proteins in mCFs.Experiments involving cell proliferation,wound healing,and Transwell assays demonstrated that overexpression of circHERC4_041 suppressed the growth and mobility of mCFs(P<0.001).Sequence analysis results suggested that circHERC4_041 con-tains potential ribosome entry sequence(IRES)and open reading frame(ORF).Western blot confirmed that circHERC4_041 could translate the 516 amino acid HERC4-516aa protein,which was mainly located in the cytoplasm of the cell.Cell functional experiments confirmed that circHERC4_041 inhibited the fi-brotic phenotype of mCFs by specifically translating HERC4-516aa(P<0.05).The specific interaction between HERC4-516aa and transglutaminase 2(TGM2)was confirmed by IP-MS screening and Co-IP i-dentification.Further results found that the degradation of TGM2 was promoted through proteasome path-way.The overexpression of TGM2 in mCFs facilitated by adenoviral vectors could counteract the suppres-sive effects of HERC4-516aa on the fibrotic phenotype of mCFs.Therefore,this study confirmed that the HERC4-516aa protein translated by circHERC4_041 can specifically bind to TGM2 to inhibit the fibrotic phenotype of myocardial fibroblasts.
2.Carvedilol to prevent hepatic decompensation of cirrhosis in patients with clinically significant portal hypertension stratified by new non-invasive model (CHESS2306)
Chuan LIU ; Hong YOU ; Qing-Lei ZENG ; Yu Jun WONG ; Bingqiong WANG ; Ivica GRGUREVIC ; Chenghai LIU ; Hyung Joon YIM ; Wei GOU ; Bingtian DONG ; Shenghong JU ; Yanan GUO ; Qian YU ; Masashi HIROOKA ; Hirayuki ENOMOTO ; Amr Shaaban HANAFY ; Zhujun CAO ; Xiemin DONG ; Jing LV ; Tae Hyung KIM ; Yohei KOIZUMI ; Yoichi HIASA ; Takashi NISHIMURA ; Hiroko IIJIMA ; Chuanjun XU ; Erhei DAI ; Xiaoling LAN ; Changxiang LAI ; Shirong LIU ; Fang WANG ; Ying GUO ; Jiaojian LV ; Liting ZHANG ; Yuqing WANG ; Qing XIE ; Chuxiao SHAO ; Zhensheng LIU ; Federico RAVAIOLI ; Antonio COLECCHIA ; Jie LI ; Gao-Jun TENG ; Xiaolong QI
Clinical and Molecular Hepatology 2025;31(1):105-118
Background:
s/Aims: Non-invasive models stratifying clinically significant portal hypertension (CSPH) are limited. Herein, we developed a new non-invasive model for predicting CSPH in patients with compensated cirrhosis and investigated whether carvedilol can prevent hepatic decompensation in patients with high-risk CSPH stratified using the new model.
Methods:
Non-invasive risk factors of CSPH were identified via systematic review and meta-analysis of studies involving patients with hepatic venous pressure gradient (HVPG). A new non-invasive model was validated for various performance aspects in three cohorts, i.e., a multicenter HVPG cohort, a follow-up cohort, and a carvediloltreating cohort.
Results:
In the meta-analysis with six studies (n=819), liver stiffness measurement and platelet count were identified as independent risk factors for CSPH and were used to develop the new “CSPH risk” model. In the HVPG cohort (n=151), the new model accurately predicted CSPH with cutoff values of 0 and –0.68 for ruling in and out CSPH, respectively. In the follow-up cohort (n=1,102), the cumulative incidences of decompensation events significantly differed using the cutoff values of <–0.68 (low-risk), –0.68 to 0 (medium-risk), and >0 (high-risk). In the carvediloltreated cohort, patients with high-risk CSPH treated with carvedilol (n=81) had lower rates of decompensation events than non-selective beta-blockers untreated patients with high-risk CSPH (n=613 before propensity score matching [PSM], n=162 after PSM).
Conclusions
Treatment with carvedilol significantly reduces the risk of hepatic decompensation in patients with high-risk CSPH stratified by the new model.
3.Carvedilol to prevent hepatic decompensation of cirrhosis in patients with clinically significant portal hypertension stratified by new non-invasive model (CHESS2306)
Chuan LIU ; Hong YOU ; Qing-Lei ZENG ; Yu Jun WONG ; Bingqiong WANG ; Ivica GRGUREVIC ; Chenghai LIU ; Hyung Joon YIM ; Wei GOU ; Bingtian DONG ; Shenghong JU ; Yanan GUO ; Qian YU ; Masashi HIROOKA ; Hirayuki ENOMOTO ; Amr Shaaban HANAFY ; Zhujun CAO ; Xiemin DONG ; Jing LV ; Tae Hyung KIM ; Yohei KOIZUMI ; Yoichi HIASA ; Takashi NISHIMURA ; Hiroko IIJIMA ; Chuanjun XU ; Erhei DAI ; Xiaoling LAN ; Changxiang LAI ; Shirong LIU ; Fang WANG ; Ying GUO ; Jiaojian LV ; Liting ZHANG ; Yuqing WANG ; Qing XIE ; Chuxiao SHAO ; Zhensheng LIU ; Federico RAVAIOLI ; Antonio COLECCHIA ; Jie LI ; Gao-Jun TENG ; Xiaolong QI
Clinical and Molecular Hepatology 2025;31(1):105-118
Background:
s/Aims: Non-invasive models stratifying clinically significant portal hypertension (CSPH) are limited. Herein, we developed a new non-invasive model for predicting CSPH in patients with compensated cirrhosis and investigated whether carvedilol can prevent hepatic decompensation in patients with high-risk CSPH stratified using the new model.
Methods:
Non-invasive risk factors of CSPH were identified via systematic review and meta-analysis of studies involving patients with hepatic venous pressure gradient (HVPG). A new non-invasive model was validated for various performance aspects in three cohorts, i.e., a multicenter HVPG cohort, a follow-up cohort, and a carvediloltreating cohort.
Results:
In the meta-analysis with six studies (n=819), liver stiffness measurement and platelet count were identified as independent risk factors for CSPH and were used to develop the new “CSPH risk” model. In the HVPG cohort (n=151), the new model accurately predicted CSPH with cutoff values of 0 and –0.68 for ruling in and out CSPH, respectively. In the follow-up cohort (n=1,102), the cumulative incidences of decompensation events significantly differed using the cutoff values of <–0.68 (low-risk), –0.68 to 0 (medium-risk), and >0 (high-risk). In the carvediloltreated cohort, patients with high-risk CSPH treated with carvedilol (n=81) had lower rates of decompensation events than non-selective beta-blockers untreated patients with high-risk CSPH (n=613 before propensity score matching [PSM], n=162 after PSM).
Conclusions
Treatment with carvedilol significantly reduces the risk of hepatic decompensation in patients with high-risk CSPH stratified by the new model.
4.Research Progress on Mechanism of NAD+ Metabolic Remodeling in Occurrence and Development of Glioblastoma Multiforme
Jiajia CHE ; Jinyuan DU ; Junhao BAO ; Xiting PAN ; Chengwen WANG ; Chuan XU ; Ying SHI
Cancer Research on Prevention and Treatment 2025;52(10):861-868
Gliomas, especially high-grade gliomas such as glioblastoma multiforme (GBM), are primary malignant tumors of the central nervous system, characterized by high proliferative capacity, invasiveness, and therapeutic resistance. The development of GBM relies heavily on continuous metabolic reprogramming to adapt to the unique intracranial microenvironment, with nicotinamide adenine dinucleotide (NAD+) metabolic remodeling playing a pivotal role. Dysregulation of NAD+ and its associated metabolic pathways sustains increased intracellular NAD+ levels, which drive the malignant proliferation and invasive potential of GBM, correlating with worsened patient prognosis. This review systematically summarizes the current research landscape of NAD+ metabolic remodeling in GBM, elucidates the mechanisms by which NAD+ contributes to GBM pathogenesis and progression, and explores the clinical potential of NAD+-targeted diagnostic and therapeutic strategies to provide novel insights and directions for the clinical management of GBM.
5.Carvedilol to prevent hepatic decompensation of cirrhosis in patients with clinically significant portal hypertension stratified by new non-invasive model (CHESS2306)
Chuan LIU ; Hong YOU ; Qing-Lei ZENG ; Yu Jun WONG ; Bingqiong WANG ; Ivica GRGUREVIC ; Chenghai LIU ; Hyung Joon YIM ; Wei GOU ; Bingtian DONG ; Shenghong JU ; Yanan GUO ; Qian YU ; Masashi HIROOKA ; Hirayuki ENOMOTO ; Amr Shaaban HANAFY ; Zhujun CAO ; Xiemin DONG ; Jing LV ; Tae Hyung KIM ; Yohei KOIZUMI ; Yoichi HIASA ; Takashi NISHIMURA ; Hiroko IIJIMA ; Chuanjun XU ; Erhei DAI ; Xiaoling LAN ; Changxiang LAI ; Shirong LIU ; Fang WANG ; Ying GUO ; Jiaojian LV ; Liting ZHANG ; Yuqing WANG ; Qing XIE ; Chuxiao SHAO ; Zhensheng LIU ; Federico RAVAIOLI ; Antonio COLECCHIA ; Jie LI ; Gao-Jun TENG ; Xiaolong QI
Clinical and Molecular Hepatology 2025;31(1):105-118
Background:
s/Aims: Non-invasive models stratifying clinically significant portal hypertension (CSPH) are limited. Herein, we developed a new non-invasive model for predicting CSPH in patients with compensated cirrhosis and investigated whether carvedilol can prevent hepatic decompensation in patients with high-risk CSPH stratified using the new model.
Methods:
Non-invasive risk factors of CSPH were identified via systematic review and meta-analysis of studies involving patients with hepatic venous pressure gradient (HVPG). A new non-invasive model was validated for various performance aspects in three cohorts, i.e., a multicenter HVPG cohort, a follow-up cohort, and a carvediloltreating cohort.
Results:
In the meta-analysis with six studies (n=819), liver stiffness measurement and platelet count were identified as independent risk factors for CSPH and were used to develop the new “CSPH risk” model. In the HVPG cohort (n=151), the new model accurately predicted CSPH with cutoff values of 0 and –0.68 for ruling in and out CSPH, respectively. In the follow-up cohort (n=1,102), the cumulative incidences of decompensation events significantly differed using the cutoff values of <–0.68 (low-risk), –0.68 to 0 (medium-risk), and >0 (high-risk). In the carvediloltreated cohort, patients with high-risk CSPH treated with carvedilol (n=81) had lower rates of decompensation events than non-selective beta-blockers untreated patients with high-risk CSPH (n=613 before propensity score matching [PSM], n=162 after PSM).
Conclusions
Treatment with carvedilol significantly reduces the risk of hepatic decompensation in patients with high-risk CSPH stratified by the new model.
6.Application effect of anticipatory risk intervention combined with health education under LEARNS mode in elderly patients with chronic heart failure
Yan-chuan WANG ; Yan XU ; Yuan-yuan SHU ; Ying ZENG ; Chang-lin YANG ; Ji-dong LIU
Chinese Journal of cardiovascular Rehabilitation Medicine 2025;34(1):36-41
Objective:This study aims to explore the application effect of anticipatory risk intervention combined with health education under LEARNS mode in elderly patients with chronic heart failure(CHF).Methods:This randomized controlled enrolled 126 elderly CHF patients admitted in Panzhihua Central Hospital between January 2022 and February 2023.They were divided into control group(n=63)and intervention group(n=63).All patients received routine nursing care,patients in control group received additional health education under LEARNS mode,compared to those in intervention group receiving additional anticipatory risk intervention based on control group,both groups were intervened for 2 months.Physiological indexes,negative emotion,quality of life,sleep quality,disease perception&control and self-efficacy,as well as incidence of adverse events,were compared between two groups.Results:Compared with patients in control group after intervention,those in intervention group had signif-icant lower systolic blood pressure(SBP)[(119.84±8.60)mmHg vs.(129.49±9.24)mmHg],diastolic blood pressure(DBP)[(81.59±5.08)mmHg vs.(88.51±6.36)mmHg],N terminal pro brain natriuretic peptide(NT-proBNP)[(2604.46±204.80)ng/L vs.(3024.87±212.27)ng/L],scores of Self-Rating Anxiety Scale(SAS)[(55.90±2.43)points vs.(60.11±2.62)points],Self-Rating Depression Scale(SDS)[(57.03±2.56)points vs.(61.54±2.66)points],Minnesota Living with Heart Failure Questionnaire(MLHFQ)[(52.05±6.32)points vs.(60.46±7.10)points]and Pittsburgh Sleep Quality Index(PSQI)[(9.00±1.65)points vs.(11.05±1.96)points],and significant higher left ventricular ejection fraction(LVEF)[(51.83±7.28)%vs.(47.57±5.98)%],scores of Control Attitude Scale-Revised(CAS-R)[(35.59±2.97)points vs.(30.60±3.52)points]and Gen-eral Self-Efficacy Scale(GSES)[(36.98±4.21)points vs.(30.52±4.14)points](P<0.001 all).Incidence of adverse events in intervention group was significantly lower than that of control group(3.17%vs.12.70%,P=0.048).Conclusion:Anticipatory risk intervention combined with health education under the LEARNS model could effectively improve the physiological indexes,quality of life and sleep,enhance disease perception and self-effica-cy,and reduce negative emotion and incidence of adverse events in elderly CHF patients.
7.Expression and Clinical Significance of Urinary CXCL10 and CXCL16 in Patients with Idiopathic Membranous Nephropathy
Chuan-lei ZHANG ; Liu-chuan GAO ; Ying-ying XU
Progress in Modern Biomedicine 2025;25(16):2689-2697
Objective:To investigate the expression and clinical significance of urinary C-X-C motif chemokine ligand 10(CXCL10)and C-X-C motif chemokine ligand 16(CXCL16)in patients with idiopathic membranous nephropathy(IMN).Methods:A total of 131 patients with IMN(IMN group)who were treated in Zhejiang Provincial Corps Hospital of the Chinese People's Armed Police Force from December 2020 to June 2022 were prospectively selected,131 healthy volunteers(control group)who underwent physical examination during the same period were selected.Patients with IMN were divided into stage Ⅰ group(25 cases),stage Ⅱ group(68 cases),stage Ⅲ group(22 cases)and stage Ⅳ group(16 cases)according to pathological staging,patients were divided into non-remission group(33 cases)and remission group(98 cases)based on the therapeutic efficacy after a 2-year follow-up.Urinary CXCL10 and CXCL16 levels were measured by enzyme-linked immunosorbent assay.Clinical data of patients with IMN were collected,The relationship between urinary CXCL10,CXCL16 levels and pathological staging in patients with IMN was analysied by Spearman/pearson correlation.Multivariate logistic regression analysis influencing factors on non-remission treatment in patients with IMN,and receiver operating characteristic(ROC)curves were used to assess the predictive value Of urinary CXCL10,CXCL16 levels for non-remission treatment in patients with IMN.Results:Urinary CXCL10 and CXCL16 levels in the IMN group were significantly higher than those in the control group(P<0.05).Urinary CXCL10 and CXCL16 levels were the highest in stage Ⅳ group,urinary CXCL10 and CXCL16 levels in stage Ⅲ group were higher than those in stage Ⅱ group and stage Ⅰ group,and urinary CXCL10 and CXCL16 levels in stage Ⅱ group were higher than those in stage Ⅰ group(P<0.05).Urinary CXCL10 and CXCL16 levels in patients with IMN were positively correlated with pathological staging,urinary CXCL10 were positively correlated with CXCL16(P<0.05).Urinary CXCL10 and CXCL16 in non-remission group were higher than those in the remission group(P<0.05).pathological staging Ⅲ~Ⅳ,elevated 24 h urine protein level,and elevated urinary CXCL10 and CXCL16 levels were independent risk factors for non-remission treatment in patients with IMN(P<0.05).The areas under the curve(AUC)of urinary CXCL10 and CXCL16 levels for predicting non-remission treatment in patients with IMN alone and in combination were 0.783,0.785,and 0.875,respectively,the combined detection had the highest predictive efficacy(P<0.05).Conclusion:Urinary CXCL10 and CXCL16 levels are elevated in patients with IMN,it is closely related to the pathological staging of patients and the therapeutic efficacy,the combined detection of urinary CXCL10 and CXCL16 has a high value in predicting the therapeutic efficacy in patients with IMN.
8.Incidence rates and high-risk factors of different typies of patient-ventilator asynchrony under assisted mechanical ventilation
Qimin CHEN ; Jiaoyangzi LIU ; Jia YUAN ; Dehua HE ; Ming LIU ; Caixue PAN ; Ying LIU ; Yan TANG ; Xu LIU ; Xianjun CHEN ; Chuan XIAO ; Shuwen LI ; Wei LI ; Daixiu GAO ; Feng SHEN
The Journal of Practical Medicine 2025;41(10):1509-1516
Objective To investigate the incidence and types of patient-ventilator asynchrony(PVA)in mechanically ventilated patients within the intensive care unit(ICU),and to identify associated high-risk factors,thereby providing a basis for reducing PVA,enhancing mechanical ventilation efficiency,and refining ventilation strategies.Methods A prospective observational study was conducted among patients admitted to the general ICU of the Affiliated Hospital of Guizhou Medical University from October to December 2024 who were receiving mechanical ventilation.Inclusion criteria were as follows:age ≥18 years and mechanical ventilation duration ≥12 hours.Exclusion criteria included complete controlled mechanical ventilation,palliative care or do-not-resuscitate status,and lack of informed consent.Senior respiratory therapists performed daily bedside observations of ventilator waveforms for 10~15 minutes between 08:00 and 12:00.PVA was diagnosed based on pressure-time and flow-time waveforms,with the types of PVA being recorded.Demographic and clinical data,including age,sex,body mass index(BMI),primary diagnosis,comorbidities,APACHEⅡ score at ICU admission,blood gas analysis,ventila-tion mode and parameters,analgesia and sedation status,duration of mechanical ventilation,and length of ICU stay,were collected.The incidence and types of PVA during the observation period were analyzed.Univariate and multivariate logistic regression analyses were performed to identify high-risk factors for PVA.Clinical outcomes were compared between patients with and without PVA.Results A total of 105 patients and 453 episodes of assisted mechanical ventilation waveforms were analyzed.Among these,60.95%(64/105)experienced at least one episode of PVA.Of the 453 ventilation waveforms assessed,35.76%(162/453)demonstrated PVA.The types of PVA,ranked by incidence,were as follows:cycling mismatch(12.58%,57/453),double triggering(11.92%,54/453),ineffective triggering(9.49%,43/453),flow starvation(5.30%,24/453),and exhalation flow limitation(1.77%,8/453).The incidence of PVA varied significantly across different ventilation modes:45.7%in volume-assist/control ventilation(V-A/C),38.1%in pressure-assist/control ventilation(P-A/C),42.9%in synchronized intermittent mandatory ventilation(SIMV),and 16.7%in pressure support ventilation(PSV)(P<0.001).Multi-variate logistic regression analysis revealed that the mechanical ventilation mode[reference:PSV;V-A/C:OR=4.687,95%CI:2.140~10.263,P<0.001;P-A/C:OR=2.922,95%CI:1.489~5.734,P=0.002;SIMV:OR=4.682,95%CI:1.758~12.466,P=0.002]and actual respiratory rate(OR=1.07,95%CI:1.016~1.127,P=0.011)were significant high-risk factors for PVA.Patients with PVA had a significantly longer duration of mechanical ventilation[8.21(5.35,13.91)days vs.3.00(1.96,5.71)days,P<0.001]compared to those without PVA.Conclusions PVA is commonly observed in ICU patients receiving assisted invasive mechanical ventilation,with cycling mismatch,double triggering,and ineffective triggering being the most prevalent types.The incidence of PVA tends to be lower when using the PSV mode.Clinically,real-time monitoring of patient-ventilator synchrony via ventilator waveforms,along with the optimization of ventilator modes and parameters,should be employed to minimize the occurrence of PVA and enhance the efficiency of mechanical ventilation.
9.Clinical features and prognosis of acute B lymphoblastic leukemia children carrying a TCF3: : PBX1 fusion gene
Lulu HUANG ; Yunyan HE ; Yang LI ; Danna LIN ; Ning LIAO ; Yayun LING ; Lyuhong XU ; Xinyu LI ; Huirong MAI ; Ying WANG ; Wuqing WAN ; Ying LIU ; Yanlai TANG ; Xiaoli ZHANG ; Chuan TIAN ; Xiaofeng LI ; Qiwen CHEN ; Xingjiang LONG ; Liuhua LIAO ; Qiaoru LI ; Jianling CAI ; Zijun ZHEN ; Zhiguang LI ; Keyan YANG ; Qinlong ZHENG ; Lihua YANG
Chinese Journal of Applied Clinical Pediatrics 2025;40(7):497-502
Objective:To analyze the clinical features and prognosis of acute B lymphoblastic leukemia (B-ALL) children carrying a TCF3: : PBX1 fusion gene and to evaluate the prognostic value of this gene.Methods:Retrospective cohort study.A total of 2 164 B-ALL children aged 0-18 years diagnosed and treated at 19 pediatric centers from October 2016 to June 2022 were enrolled.They were divided into the positive group and the negative group according to whether they carried a TCF3: : PBX1 fusion gene.The clinical characteristics, treatment response, adverse reactions, and prognosis of the 2 groups of patients were analyzed.The rank sum and Kruskal-Wallis tests were used to compare two and more than two groups of numerical variables, respectively.Fisher′s exact test was used to compare categorical variables.Results:Among the 2 164 patients, 116 (5.4%) were TCF3: : PBX1 positive, of which 70 patients were female, accounting for 60.3%.There were 840 female patients in the TCF3: : PBX1-negative group, accounting for 41.0%.There was a significant difference in the ratio of females between the TCF3: : PBX1-positive and TCF3: : PBX1-negative groups ( P<0.001).No significant difference was observed in age of onset between the two groups( P>0.05).The proportion of bone marrow naive cells [54.00 (14.00, 76.50)% vs.29.00 (3.00, 68.00)%], white blood cell counts [25.30 (10.46, 60.94)×10 9/L vs.9.03 (4.38, 30.73)×10 9/L] and hemoglobin counts [82.00(63.00, 101.00) g/L vs.74.00(60.00, 90.00) g/L] in the TCF3: : PBX1-positive group were significantly higher than those in the negative group at the onset (all P<0.05).In terms of treatment response, the proportion of peripheral blood naive cells on Day 8 in the TCF3: : PBX1-positive group was significantly higher than that in the negative group [2.00 (0, 9.00)% vs.0 (0, 2.00)%, P<0.001].The proportion of minimal residual disease <0.1% on Day 15 in the TCF3: : PBX1-positive group was significantly higher than that in the negative group ( P=0.038).There were no significant differences in cumulative recurrence rate, treatment-related mortality (TRM), and overall survival (OS) between the TCF3: : PBX1-positive group and TCF3: : PBX1-negative group (all P>0.05).The cumulative recurrence risk of TCF3: : PBX1-positive patients was 9.646 times higher than that of ETV6: : RUNX1-positive patients with better prognosis( HR=9.646, 95% CI: 1.026-90.700, P=0.047).There were no significant differences in TRM and OS between TCF3: : PBX1-positive and ETV6: : RUNX1-positive patients (all P>0.05).A significant enrichment of PAX5 mutations was detected in TCF3: : PBX1-positive patients.Among the 7 high-risk TCF3: : PBX1-positive patients in a single center, 4 patients had PAX5 mutations, and this proportion was significantly higher than that in other patients ( P<0.001). Conclusions:B-ALL children carrying a TCF3: : PBX1 fusion gene have a high remission rate and good long-term prognosis after intensive chemotherapy.It is suggesting that TCF3: : PBX1-positive B-ALL patients should be rated at intermediate risk to receive intensive chemotherapy.
10.Incidence rates and high-risk factors of different typies of patient-ventilator asynchrony under assisted mechanical ventilation
Qimin CHEN ; Jiaoyangzi LIU ; Jia YUAN ; Dehua HE ; Ming LIU ; Caixue PAN ; Ying LIU ; Yan TANG ; Xu LIU ; Xianjun CHEN ; Chuan XIAO ; Shuwen LI ; Wei LI ; Daixiu GAO ; Feng SHEN
The Journal of Practical Medicine 2025;41(10):1509-1516
Objective To investigate the incidence and types of patient-ventilator asynchrony(PVA)in mechanically ventilated patients within the intensive care unit(ICU),and to identify associated high-risk factors,thereby providing a basis for reducing PVA,enhancing mechanical ventilation efficiency,and refining ventilation strategies.Methods A prospective observational study was conducted among patients admitted to the general ICU of the Affiliated Hospital of Guizhou Medical University from October to December 2024 who were receiving mechanical ventilation.Inclusion criteria were as follows:age ≥18 years and mechanical ventilation duration ≥12 hours.Exclusion criteria included complete controlled mechanical ventilation,palliative care or do-not-resuscitate status,and lack of informed consent.Senior respiratory therapists performed daily bedside observations of ventilator waveforms for 10~15 minutes between 08:00 and 12:00.PVA was diagnosed based on pressure-time and flow-time waveforms,with the types of PVA being recorded.Demographic and clinical data,including age,sex,body mass index(BMI),primary diagnosis,comorbidities,APACHEⅡ score at ICU admission,blood gas analysis,ventila-tion mode and parameters,analgesia and sedation status,duration of mechanical ventilation,and length of ICU stay,were collected.The incidence and types of PVA during the observation period were analyzed.Univariate and multivariate logistic regression analyses were performed to identify high-risk factors for PVA.Clinical outcomes were compared between patients with and without PVA.Results A total of 105 patients and 453 episodes of assisted mechanical ventilation waveforms were analyzed.Among these,60.95%(64/105)experienced at least one episode of PVA.Of the 453 ventilation waveforms assessed,35.76%(162/453)demonstrated PVA.The types of PVA,ranked by incidence,were as follows:cycling mismatch(12.58%,57/453),double triggering(11.92%,54/453),ineffective triggering(9.49%,43/453),flow starvation(5.30%,24/453),and exhalation flow limitation(1.77%,8/453).The incidence of PVA varied significantly across different ventilation modes:45.7%in volume-assist/control ventilation(V-A/C),38.1%in pressure-assist/control ventilation(P-A/C),42.9%in synchronized intermittent mandatory ventilation(SIMV),and 16.7%in pressure support ventilation(PSV)(P<0.001).Multi-variate logistic regression analysis revealed that the mechanical ventilation mode[reference:PSV;V-A/C:OR=4.687,95%CI:2.140~10.263,P<0.001;P-A/C:OR=2.922,95%CI:1.489~5.734,P=0.002;SIMV:OR=4.682,95%CI:1.758~12.466,P=0.002]and actual respiratory rate(OR=1.07,95%CI:1.016~1.127,P=0.011)were significant high-risk factors for PVA.Patients with PVA had a significantly longer duration of mechanical ventilation[8.21(5.35,13.91)days vs.3.00(1.96,5.71)days,P<0.001]compared to those without PVA.Conclusions PVA is commonly observed in ICU patients receiving assisted invasive mechanical ventilation,with cycling mismatch,double triggering,and ineffective triggering being the most prevalent types.The incidence of PVA tends to be lower when using the PSV mode.Clinically,real-time monitoring of patient-ventilator synchrony via ventilator waveforms,along with the optimization of ventilator modes and parameters,should be employed to minimize the occurrence of PVA and enhance the efficiency of mechanical ventilation.

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