1.Expert Consensus on Blood Flow and Oxygen Delivery Phenotyping and Clinical Management of Septic Shock(2025)
Wei HUANG ; Xinchen WANG ; Wenzhao CHAI ; Keliang CUI ; Bo YAO ; Zhiqun XING ; Cui WANG ; Jingjing LIU ; Shiyi GONG ; Dongkai LI ; Wanhong YIN ; Xiaoting WANG ; Wei DU
Medical Journal of Peking Union Medical College Hospital 2026;17(1):40-58
Sepsis is a life-threatening organ dysfunction caused by a dysregulated host response to infection. Septic shock is the primary cause of mortality in sepsis, with its core pathophysiological mechanism being severe ischemia and hypoxia in critical units—composed of microcirculation and the mitochondria of functional cells—resulting from disruptions in blood flow and oxygen flow following a dysregulated host response. Due to the systemically convergent yet clinically heterogeneous nature of the host response, current understanding and management strategies for hemodynamics remain inconsistent, often leading to inadequate resuscitation or overtreatment. To improve the quality of care, based on a systematic review of the "blood flow-oxygen flow" theory, an expert panel emphasizes reevaluating septic shock from an integrated perspective of blood flow and oxygen flow, and has formulated the
2.Effect of Changji'an Formula (肠激安方) on the miR-29b-3p/TRAF3/NF-κB/MLCK Axis in Colonic Tissues in Diarrhea-predominant Irritable Bowel Syndrome Model Rat with Liver Depression and Spleen Deficiency Syndrome
Yongfu WANG ; Wei KE ; Xiangyu XIE ; Hongmei TANG ; Liuze SI ; Yuna CHAI
Journal of Traditional Chinese Medicine 2026;67(4):439-446
ObjectiveTo explore the potential mechanism of Changji'an Formula (肠激安方) on intestinal permeability for rats with diarrhea-predominant irritable bowel syndrome (IBS-D) of liver depression and spleen deficiency syndrome by the microRNA-29b-3p (miR-29b-3p)/tumor necrosis factor receptor-associated factor 3 (TRAF3)/nuclear factor-κB (NF-κB)/myosin light chain kinase (MLCK) axis. MethodsTwenty-four 1-day-old male Sprague-Dawley (SD) suckling rats were selected, and the IBS-D rat model of liver depression and spleen deficiency syndrome was established via a three-factor method,i.e. maternal separation plus acetic acid stimulation and restraint stress, for 6 consecutive weeks. After successful modeling, the rats were randomly divided into a model group, pinaverium bromide group, low-dose and high-dose Changji'an Formula groups, with 6 rats in each group. Another 6 age-matched non-modeled SD rats were included as the control group. The low-dose and high-dose Changji'an Formula groups were given intragastric administration of Changji'an Formula solution at doses of 16.74 g/(kg·d) and 33.48 g/(kg·d), respectively; the pinaverium bromide group received intragastric administration of pinaverium bromide tablets at 0.018 g/(kg·d); and the control group was given distilled water at 10 ml/(kg·d) via intragastric gavage. The intervention was conducted once daily for 14 consecutive days. After the gavage treatment, the fecal water content of rats in each group was measured. Enzyme-linked immunosorbent assay (ELISA) was used to detect the serum levels of intestinal permeability indicators, including D-lactic acid (D-LA), diamine oxidase (DAO), and lipopolysaccharide (LPS). Quantitative real-time polymerase chain reaction (qRT-PCR) was conducted to determine the mRNA expression levels of miR-29b-3p, TRAF3, tumor necrosis factor-α (TNF-α), p65, p50, and MLCK in colonic tissues. Western Blot analysis was employed to detect the protein expression levels of TRAF3, TNF-α, p65, phosphorylated p65 (p-p65), MLCK, myosin light chain (MLC), phosphorylated MLC (p-MLC), and tight junction proteins including junctional adhesion molecule-A (JAM-A), Occludin, and Claudin-1 in colonic tissues. ResultsCompared with the control group, the model group exhibited significantly increased fecal water content and serum levels of D-LA, DAO, and LPS, along with decreased protein expression levels of JAM-A, Occludin, and Claudin-1 in colonic tissues (P<0.05 or P<0.01). Additionally, in the model group, the mRNA expression levels of miR-29b-3p, TNF-α, p65, p50, and MLCK in colonic tissues were up-regulated, while the mRNA and protein expression levels of TRAF3 were down-regulated; the protein levels of TNF-α and MLCK, as well as the ratios of p-p65/p65 and p-MLC/MLC, significantly elevated (P<0.01). Compared with the model group, all treatment groups showed reduced fecal water content and serum levels of D-LA, DAO, and LPS, along with down-regulated mRNA expression levels of miR-29b-3p, TNF-α, p65, p50, and MLCK, and up-regulated TRAF3 mRNA expression in colonic tissues. Moreover, the pinaverium bromide group and high-dose Changji'an Formula group presented increased protein levels of Occludin, Claudin-1, and TRAF3, as well as decreased protein levels of TNF-α and MLCK, and reduced ratios of p-p65/p65 and p-MLC/MLC in colonic tissues (P<0.05 or P<0.01). Compared with the low-dose Changji'an Formula group, the high-dose group had lower fecal water content and serum levels of DAO and LPS (P<0.01). In comparison with the pinaverium bromide group, the high-dose Changji'an Formula group showed a significant decrease in serum DAO level (P<0.01). ConclusionsChangji'an Formula can reduce intestinal permeability and restore intestinal barrier function in IBS-D rats of liver depression and spleen deficiency syndrome by regulating the miR-29b-3p/TRAF3/NF-κB/MLCK axis.
3.Regulatory Effect of Danhe Granules on Oxidative Stress in Rats with Mixed Hyperlipidemia
Jingke MENG ; Susu LIU ; Pan GAO ; Mingjiao JIA ; Bochao JIA ; Qingzheng XING ; Yulong CHEN ; Wei WANG ; Xinlou CHAI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):112-122
ObjectiveTo investigate the therapeutic mechanism of Danhe granules in treating mixed hyperlipidemia based on network pharmacology, as well as animal and cell experiments. MethodsThe active compounds and targets of Danhe granules were screened using the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) and the Encyclopedia of Traditional Chinese Medicine (ETCM). Related targets for mixed hyperlipidemia were obtained from the GeneCards database. The intersecting targets were subjected to Gene Ontology (GO) functional annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses. A high-fat model was established in human hepatocellular carcinoma cells (HepG2) induced by palmitic acid (PA), followed by intervention with Danhe granules to assess intracellular lipid accumulation and oxidative stress levels. A mixed hyperlipidemia rat model was also established and divided into low-, medium-, and high-dose Danhe granules groups (1.134, 2.268, and 4.536 g·kg-1, respectively), as well as a positive control group treated with pravastatin sodium (4.020 mg·kg-1). After eight weeks of intervention, serum lipid levels, inflammatory factors, oxidative stress indices, and the expression of key hepatic lipid metabolism-related proteins were determined. ResultsNetwork pharmacology identified 93 intersecting targets between Danhe granules and mixed hyperlipidemia, with peroxisome proliferator-activated receptor gamma (PPARG), peroxisome proliferator-activated receptor alpha (PPARA), tumor necrosis factor (TNF), interleukin-6 (IL-6), and IL-1B among the key nodes. The PPAR signaling pathway, AGE/RAGE signaling pathway, lipid metabolism, atherosclerosis and non-alcoholic fatty liver disease (NAFLD) were among the most significantly enriched pathways. Cellular experiments demonstrated that Danhe granules significantly reduced reactive oxygen species (ROS) and malondialdehyde (MDA) levels while increasing catalase (CAT) activity (P<0.05), thereby alleviating intracellular lipid accumulation and triglyceride (TG) content in HepG2. In animal experiments, Danhe granules markedly decreased serum total cholesterol (TC), TG, and low-density lipoprotein cholesterol (LDL-C) levels (P<0.05), reduced hepatic MDA levels, and elevated superoxide dismutase (SOD) and CAT levels. Histological analysis showed alleviation of hepatic steatosis, upregulation of hepatic PPARA and lipoprotein lipase (LPL) expressions, and downregulation of sterol regulatory element-binding protein 1 (SREBP1) expression (P<0.05, P<0.01). ConclusionDanhe granules improve lipid metabolism disorders in mixed hyperlipidemia by reducing MDA levels, enhancing SOD and CAT activities, scavenging excessive ROS, inhibiting oxidative stress, and mitigating liver injury. The underlying mechanism may involve the upregulation of PPARA and LPL and the suppression of SREBP1 expression.
4.Regulatory Effect of Danhe Granules on Oxidative Stress in Rats with Mixed Hyperlipidemia
Jingke MENG ; Susu LIU ; Pan GAO ; Mingjiao JIA ; Bochao JIA ; Qingzheng XING ; Yulong CHEN ; Wei WANG ; Xinlou CHAI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):112-122
ObjectiveTo investigate the therapeutic mechanism of Danhe granules in treating mixed hyperlipidemia based on network pharmacology, as well as animal and cell experiments. MethodsThe active compounds and targets of Danhe granules were screened using the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) and the Encyclopedia of Traditional Chinese Medicine (ETCM). Related targets for mixed hyperlipidemia were obtained from the GeneCards database. The intersecting targets were subjected to Gene Ontology (GO) functional annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses. A high-fat model was established in human hepatocellular carcinoma cells (HepG2) induced by palmitic acid (PA), followed by intervention with Danhe granules to assess intracellular lipid accumulation and oxidative stress levels. A mixed hyperlipidemia rat model was also established and divided into low-, medium-, and high-dose Danhe granules groups (1.134, 2.268, and 4.536 g·kg-1, respectively), as well as a positive control group treated with pravastatin sodium (4.020 mg·kg-1). After eight weeks of intervention, serum lipid levels, inflammatory factors, oxidative stress indices, and the expression of key hepatic lipid metabolism-related proteins were determined. ResultsNetwork pharmacology identified 93 intersecting targets between Danhe granules and mixed hyperlipidemia, with peroxisome proliferator-activated receptor gamma (PPARG), peroxisome proliferator-activated receptor alpha (PPARA), tumor necrosis factor (TNF), interleukin-6 (IL-6), and IL-1B among the key nodes. The PPAR signaling pathway, AGE/RAGE signaling pathway, lipid metabolism, atherosclerosis and non-alcoholic fatty liver disease (NAFLD) were among the most significantly enriched pathways. Cellular experiments demonstrated that Danhe granules significantly reduced reactive oxygen species (ROS) and malondialdehyde (MDA) levels while increasing catalase (CAT) activity (P<0.05), thereby alleviating intracellular lipid accumulation and triglyceride (TG) content in HepG2. In animal experiments, Danhe granules markedly decreased serum total cholesterol (TC), TG, and low-density lipoprotein cholesterol (LDL-C) levels (P<0.05), reduced hepatic MDA levels, and elevated superoxide dismutase (SOD) and CAT levels. Histological analysis showed alleviation of hepatic steatosis, upregulation of hepatic PPARA and lipoprotein lipase (LPL) expressions, and downregulation of sterol regulatory element-binding protein 1 (SREBP1) expression (P<0.05, P<0.01). ConclusionDanhe granules improve lipid metabolism disorders in mixed hyperlipidemia by reducing MDA levels, enhancing SOD and CAT activities, scavenging excessive ROS, inhibiting oxidative stress, and mitigating liver injury. The underlying mechanism may involve the upregulation of PPARA and LPL and the suppression of SREBP1 expression.
5.Mechanisms of action of Helicobacter pylori colonization factors
Mingming ZHAO ; Lizhen DONG ; Zichao JIA ; Chengxue WANG ; Yamin CHAI ; Wei LUO
International Journal of Laboratory Medicine 2025;46(11):1370-1374,1408
Helicobacter pylori(Hp)is a major pathogen that causes peptic ulcer,mucosa-associated tissue lymphoma and gastric cancer.Adhesion colonization is a prerequisite for the pathogenesis of Hp.After infec-tion,Hp first uses urease to neutralize gastric acid,and then it adapts to the environment through motility and chemotactic swimming of flagella.Finally,Hp adheres to gastric epithelial cells through outer membrane pro-teins.Some outer membrane proteins have the biological effect of transporting virulence factors,mediating in-flammation and assisting Hp to produce pathological changes on human body.This paper reviews the mecha-nism of main colonization factors of Hp.
6.Observation on the Clinical Efficacy of Therapy of Resolving Blood Stasis and Tranquilizing Mind for Insomnia with Internal Blockage of Blood Stasis Type
Junjie CHAI ; Junfan WEI ; Yang ZHANG ; Hualu FU ; Sichen LIU ; Zichen OUYANG ; Jingbao HU
Journal of Guangzhou University of Traditional Chinese Medicine 2025;42(2):336-342
Objective To observe the clinical efficacy of therapy of resolving blood stasis and tranquilizing mind in the treatment of insomnia with internal blockage of blood stasis type.Methods A parallel randomized controlled trial was conducted on 88 cases of insomnia patients with internal blockage of blood stasis type who admitted to Bao'an Traditional Chinese Medicine Hospital Affiliated to Guangzhou University of Chinese Medicine from January 2024 to June 2024.The patients were randomly divided into an observation group and a control group,with 44 cases in each group.The observation group was treated with the self-made Huayu Anshen Prescription(modified Xuefu Zhuyu Decoction)orally following the therapy of resolving blood stasis and tranquilizing mind,while the control group was treated with Dexzopiclone Tablets orally.The course of treatment for the two groups covered four weeks.The changes in the scores of traditional Chinese medicine(TCM)syndrome,Pittsburgh Sleep Quality Index(PSQI),Self-Rating Depression Scale(SDS),and Self-Rating Anxiety Scale(SAS)in the two groups before and after treatment were observed,and then the clinical efficacy and medication safety of the patients in the two groups were evaluated.Results(1)After four weeks of treatment,the total effective rate of the observation group was 86.36%(38/44)and that of the control group was 70.45%(31/44),and the intergroup comparison showed that the clinical efficacy of the observation group was significantly superior to that of the control group,the difference being statistically significant(χ2=8.080,P<0.05).(2)After treatment,the scores of TCM syndrome,PSQI,SDS,and SAS of patients in the two groups were all significantly decreased compared with those before treatment(P<0.01),and the decrease in the observation group was significantly superior to that in the control group,the differences all being statistically significant(P<0.05).(3)During the treatment,there were no obvious adverse reactions occurred in the two groups,with higher safety.Conclusion Therapy of resolving blood stasis and tranquilizing mind for treating insomnia with internal blockage of blood stasis type can effectively alleviate patients'clinical symptoms,improve their sleep quality and relieve depression and anxiety,with stronger clinical efficacy and higher safety.
7.Sporopollenin-based material for prevention of postoperative adhesions: a murine study
Wei Beng NG ; Ian Ee En SIM ; Wean Sin CHEOW ; Young Jun CHAI
Annals of Surgical Treatment and Research 2025;108(4):256-269
Purpose:
This study was performed to evaluate the antiadhesive effect and safety of a novel adhesion barrier device (ABD) in comparison to other commercially available anti-adhesion products.
Methods:
A 4-arm, controlled, blinded, experimental, and murine model study design was used. Forty male Sprague Dawley rats were randomly allocated to Interceed, Seprafilm, ABD, and control groups (n = 10/group). Abdominal cavity trauma was induced in all rats. Interceed, Seprafilm, or the ABD were applied to the injury site of each rat according to their respective groups, the control group received no intervention.
Results:
Twenty-one days after the operation, surgical adhesion severity and area scores were significantly reduced in the Interceed, Seprafilm, and ABD groups compared to the control group (P = 0.016, P < 0.001, P < 0.001, respectively), and in the ABD group compared to the Interceed group (P = 0.036). No significant difference was observed between the ABD and Seprafilm groups (P = 0.070). Additionally, in the ABD group, no remnants of the ABD were observed at the injury site, and no hematological abnormalities were present.
Conclusion
The ABD has the potential to improve postsurgical peritoneal adhesions compared to Interceed and has comparable effectiveness compared to Seprafilm. The ABD may be a valuable option to reduce surgical failure. Further studies in human subjects are warranted to determine the clinical application and safety of the ABD for commercialization.
8.Mechanism of Jiming Powder in improving mitophagy for treatment of myocardial infarction based on PINK1-Parkin pathway.
Xin-Yi FAN ; Xiao-Qi WEI ; Wang-Jing CHAI ; Kuo GAO ; Fang-He LI ; Xue YU ; Shu-Zhen GUO
China Journal of Chinese Materia Medica 2025;50(12):3346-3355
In the present study, a mouse model of coronary artery ligation was employed to evaluate the effects of Jiming Powder on mitophagy in the mouse model of myocardial infarction and elucidate its underlying mechanisms. A mouse model of myocardial infarction post heart failure was constructed by ligating the left anterior descending branch of the coronary artery. The therapeutic efficacy of Jiming Powder was assessed from multiple perspectives, including ultrasonographic imaging, hematoxylin-eosin(HE) staining, Masson staining, and serum cardiac enzyme profiling. Dihydroethidium(DHE) staining was employed to evaluate the oxidative stress levels in the hearts of mice from each group. Mitophagy levels were assessed by scanning electron microscopy and immunofluorescence co-localization. Western blot was employed to determine the levels of key proteins involved in mitophagy, including Bcl-2-interacting protein beclin 1(BECN1), sequestosome 1(SQSTM1), microtubule-associated protein 1 light chain 3 beta(LC3B), PTEN-induced putative kinase 1(PINK1), phospho-Parkinson disease protein(p-Parkin), and Parkinson disease protein(Parkin). The results demonstrated that compared with the model group, high and low doses of Jiming Powder significantly reduced the left ventricular internal diameter in systole(LVIDs) and left ventricular internal diameter in diastole(LVIDd) and markedly improved the left ventricular ejection fraction(LVEF) and left ventricular fractional shortening(LVFS), effectively improving the cardiac function in post-myocardial infarction mice. Jiming Powder effectively reduced the levels of myocardial injury markers such as creatine kinase(CK), creatine kinase isoenzyme(CK-MB), and lactate dehydrogenase(LDH), thereby protecting ischemic myocardium. HE staining revealed that Jiming Powder attenuated inflammatory cell infiltration after myocardial infarction. Masson staining indicated that Jiming Powder effectively inhibited ventricular remodeling. Western blot results showed that Jiming Powder activated the PINK1-Parkin pathway, up-regulated the protein level of BECN1, down-regulated the protein level of SQSTM1, and increased the LC3Ⅱ/LC3Ⅰ ratio to promote mitophagy. In conclusion, Jiming Powder exerts therapeutic effects on myocardial infarction by inhibiting ventricular remodeling. The findings pave the way for subsequent pharmacological studies on the active components of Jiming Powder.
Animals
;
Myocardial Infarction/physiopathology*
;
Mitophagy/drug effects*
;
Mice
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Drugs, Chinese Herbal/administration & dosage*
;
Protein Kinases/genetics*
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Male
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Ubiquitin-Protein Ligases/genetics*
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Humans
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Disease Models, Animal
;
Mice, Inbred C57BL
;
Signal Transduction/drug effects*
9.Mechanism of Jiming Powder in inhibiting ferroptosis in treatment of myocardial infarction based on NRF2/HO-1/GPX4 pathway.
Xin-Yi FAN ; Xiao-Qi WEI ; Wang-Jing CHAI ; Fang-He LI ; Kuo GAO ; Xue YU ; Shu-Zhen GUO
China Journal of Chinese Materia Medica 2025;50(11):3108-3116
This study employed a mouse model of coronary artery ligation to assess the effect and mechanism of Jiming Powder on mitochondrial autophagy in mice with myocardial infarction. The mouse model of heart failure post-myocardial infarction was established by ligating the left anterior descending coronary artery. The pharmacological efficacy of Jiming Powder was evaluated through echocardiographic imaging, hematoxylin-eosin(HE) staining, and Masson staining. The levels of malondialdehyde(MDA), Fe~(2+), reduced glutathione(GSH), and superoxide dismutase(SOD) in heart tissues, as well as MDA immunofluorescence of heart tissues, were measured to assess lipid peroxidation and Fe~(2+) levels in the hearts of mice in different groups. Ferroptosis levels in the groups were evaluated using scanning electron microscopy and Prussian blue staining. Western blot analysis was conducted to detect the levels of key ferroptosis-related proteins, including nuclear factor erythroid 2-related factor 2(NRF2), ferritin heavy chain(FTH), glutathione peroxidase 4(GPX4), solute carrier family 7 member 11(SLC7A11), heme oxygenase 1(HO-1), and Kelch-like ECH-associated protein 1(KEAP1). The results showed that compared with the model group, both the high-and low-dose Jiming Powder groups exhibited significantly reduced left ventricular internal diameter in systole(LVIDs) and left ventricular internal diameter in diastole(LVIDd), while the left ventricular ejection fraction(EF) and left ventricular fractional shortening(FS) were significantly improved, effectively enhancing cardiac function in mice post-myocardial infarction. HE staining revealed that Jiming Powder attenuated myocardial inflammatory cell infiltration post-infarction, and Masson staining indicated that Jiming Powder effectively reduced fibrosis in the infarct margin area. Treatment with Jiming Powder reduced the levels of MDA and Fe~(2+), indicators of lipid peroxidation post-myocardial infarction, while increasing GSH and SOD levels, thus protecting ischemic myocardium. Western blot results demonstrated that Jiming Powder reduced KEAP1 protein accumulation, activated the NRF2/HO-1/GPX4 pathway, and up-regulated the protein expression of FTH and SLC7A11, exerting an inhibitory effect on ferroptosis. This study reveals that Jiming Powder exerts a therapeutic effect on myocardial infarction by inhibiting ferroptosis through the NRF2/HO-1/GPX4 pathway, providing a foundation for subsequent research on the pharmacological effects of Jiming Powder.
Animals
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Ferroptosis/drug effects*
;
Myocardial Infarction/physiopathology*
;
NF-E2-Related Factor 2/genetics*
;
Mice
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Drugs, Chinese Herbal/administration & dosage*
;
Male
;
Heme Oxygenase-1/genetics*
;
Phospholipid Hydroperoxide Glutathione Peroxidase/genetics*
;
Humans
;
Mice, Inbred C57BL
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Signal Transduction/drug effects*
;
Disease Models, Animal
10.Application effect of failure modes and effects analysis in reducing the incidence rate of catheter dislodgement in patients in the post-anesthesia care unit
Shijing WEI ; Xinru WANG ; Jiaxing WANG ; Jiaxing CHAI ; Xianchao SU ; Xiongtao SHANG ; Hongliang WU
Journal of Chongqing Medical University 2025;50(10):1442-1447
Objective:To investigate the application effect of medical failure modes and effects analysis(FMEA)in reducing the inci-dence rate of catheter dislodgement in patients in the post-anesthesia care unit(PACU).Methods:A retrospective study was con-ducted among 469 PACU patients in our hospital from January 2023 to June 2024.According to the application time of FMEA,the pa-tients were divided into routine group(234 PACU patients who did not receive FMEA from January to June 2023)and FMEA group(235 PACU patients who received FMEA from July 2023 to June 2024).The two groups were compared in terms of the incidence rate of catheter dislodgement,risk priority number(RPN)coefficients(including professional knowledge,risk awareness,and intervention guidance),the quality of recovery of consciousness(including the time to complete recovery of consciousness and the length of stay in the PACU),and the degree of satisfaction with nursing(including risk management,nursing services,and nursing techniques).Results:The FMEA group had a significantly lower incidence rate of catheter dislodgement than the routine group[0.43%(1/235)vs.2.99%(7/234),the difference was statistically significant(χ2=4.604,P=0.032)].Compared with the routine group,the FMEA group had significantly lower RPN coefficients of risk awareness t=52.518,professional knowledge t=49.641,and intervention guidancet=61.592(P<0.001).Compared with the routine group,the FMEA group had significantly shorter time to complete recovery t=18.087 of consciousness and length of stay in the PACUt=15.710(P<0.001).The FMEA group had a significantly higher degree of satisfaction with nursing than the routine group in terms of risk management t=19.794,nursing services t=10.825,and nursing techniques t=14.555(P<0.001).Conclusion:The application of FMEA manage-ment in PACU patients can reduce the incidence rates of catheter dislodgement and risk events and improve the quality of recovery of consciousness and the degree of satisfaction with nursing,and there-fore,it has important clinical significance.

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