1.Construction of whole-process management system for smart pharmacy based on the integration of traceability codes and drug batch numbers
Ziyang ZHANG ; Danyan SHAO ; Junjuan FAN ; Jian’an BAO ; Jingjing MA
China Pharmacy 2026;37(5):565-570
OBJECTIVE To construct a whole-process management system for the smart pharmacy based on the integration of drug batch numbers and traceability codes, aiming to solve the problems of low upload rates and traceability difficulties of drug traceability codes in the central pharmacy, and to enhance its level of refined management and medication safety. METHODS Following the FOCUS-PDCA framework(find,organize,clarify,understand,select-plan,do,check,act), a drug batch number and traceability code management system was established by optimizing batch number management processes, introducing “pre-scan registration” technology, and establishing a dynamic “code pool” mechanism. Based on medical insurance upload data and operational performance indicators in our hospital from June to August 2025, the differences in management efficacy before and after the implementation of the system were compared and analyzed. RESULTS The drug batch number and traceability code management system was successfully established, achieving “one-object, one-code” whole-process association with batch numbers for inpatient drugs, especially split drugs. After the application of this system, the upload rate of inpatient drug traceability codes reached 100%, significantly higher than the average upload rate of inpatient drugs in other tertiary hospitals in our city (with the highest rate being only 23.22%, P <0.001). The inventory stocktaking error rate dropped from 0.9% to 0.3% (a decrease of 66.7%); the number of daily dispensing errors decreased from 1.43 to 0.37; the dispensing time (14.75 min) for temporary medical orders recovered to the routine level (14.42 min) prior to the system implementation. CONCLUSIONS By adopting the “pre-scan registration-code pool management-closed-loop traceability” model, this system enables traceability for individual drug products in their smallest packaging units, improves the upload rate of traceability codes, significantly reduces the medication dispensing error rate, and does not increase the time cost for temporary medical order dispensing, thereby balancing efficiency with closed-loop traceability.
2.Summary of 16-Year Observation of Reflux Esophagitis-Like Symptoms in A Natural Village in A High-Incidence Area of Esophageal Cancer
Junqing LIU ; Lingling LEI ; Yaru FU ; Xin SONG ; Jingjing WANG ; Xueke ZHAO ; Min LIU ; Zongmin FAN ; Fangzhou DAI ; Xuena HAN ; Zhuo YANG ; Kan ZHONG ; Sai YANG ; Qiang ZHANG ; Qide BAO ; Lidong WANG
Cancer Research on Prevention and Treatment 2025;52(6):461-465
Objective To investigate the screening results and factors affecting abnormal detection rates among high-risk groups of esophageal cancer and to explore effective intervention measures. Methods We investigated and collected the information on gender, education level, age, marital status, symptoms of reflux esophagitis (heartburn, acid reflux, belching, hiccup, foreign body sensation in the pharynx, and difficulty swallowing), consumption of pickled vegetables, salt use, and esophageal cancer incidence of villagers in a natural village in Wenfeng District, Anyang City, Henan Province. Changes in reflux esophagitis symptoms in the high-incidence area of esophageal cancer before and after 16 years were observed, and the relationship of such changes with esophageal cancer was analyzed. Results In 2008, 711 cases were epidemiologically investigated, including
3.Relationship between three indicators and prognosis of elderly patients with ischemic stroke due to carotid artery stenosis
Zhiyue ZHANG ; Jingjing LI ; Sujie WANG ; Qiushuang FAN ; Yuling YANG
Chinese Journal of Geriatric Heart Brain and Vessel Diseases 2025;27(5):627-631
Objective To investigate the relationship between platelet to lymphocyte ratio(PLR)and low-density lipoprotein cholesterol(LDL-C)/high-density lipoprotein cholesterol(HDL-C)ratio with the degree of carotid artery stenosis,neurological deficits,and prognosis in elderly pa-tients with ischemic stroke and carotid artery stenosis.Methods A total of 186 elderly patients diagnosed with ischemic stroke and carotid artery stenosis admitted in our hospital from June 2021 to June 2024 were enrolled in this study.The PLR and LDL-C/HDL-C ratio were collected,and then with median split,they were divided into high and low PLR groups(both 93 cases),and high and low LDL-C/HDL-C groups(both 93 cases).General clinical data were compared between the two pairs of groups.Multivariate logistic regression analysis was used to identify the factors influencing the severity of carotid artery stenosis,neurological deficits,and prognosis.Kendall's Tau-b correlation analysis was employed to assess the relationship of PLR and LDL-C/HDL-C with the degree of carotid artery stenosis and prognosis.Pearson correlation analysis was conduc-ted to evaluate the association of PLR and LDL-C/HDL-C with neurological deficits.Results Sta-tistically differences were observed in the degree of carotid artery stenosis and prognosis between the high and low PLR groups(P<0.01).The NIHSS score was significantly higher in the high PLR group(P<0.01).Similar differences were noted between the high and low LDL-C/HDL-C groups in terms of degree of carotid artery stenosis and prognosis(P<0.01).The NIHSS score was obviously higher in the high LDL-C/HDL-C group(P<0.01).Multivariate logistic regression analysis showed that PLR and LDL-C/HDL-C were risk factors for the degree of carotid artery stenosis,neurological deficits and prognosis in elderly patients with carotid artery stenosis after ischemic stroke(OR=3.842,95%CI:2.551-5.328,P=0.000;OR=3.604,95%CI:2.402-5.407,P=0.000;OR=2.956,95%CI:1.955-4.471,P=0.000;OR=3.463,95%CI:2.506-4.785,P=0.000;OR=2.878,95%CI:1.991-4.160,P=0.000;OR=3.785,95%CI:2.483-5.768,P=0.000).Kendall's Tau-b correlation analysis showed that PLR and LDL-C/HDL-C were positively correlated with the degree of carotid artery stenosis and the prognosis in these eld-erly patients(P<0.05).Pearson correlation analysis indicated that PLR and LDL-C/HDL-C were positively correlated with the NIHSS score in the patients(P<0.05).Conclusion For the elderly ischemic stroke patients with carotid artery stenosis,PLR and LDL-C/HDL-C are related to the prognosis,and can be used to help assess the severities of carotid artery stenosis and neurological deficits.
4.Guideline for the prevention of intraoperative acquired pressure injury in paraplegic patients with spinal cord injury (version 2025)
Aijun XU ; Shuixia LI ; Bo CHEN ; Mengyuan YE ; Lejiao LANG ; Ning NING ; Lin ZHANG ; Changqing LIU ; Zhonglan CHEN ; Weihu MA ; Weishi LI ; Xiaoning WANG ; Dongmei BIAN ; Jiancheng ZENG ; Xin WANG ; Yuan GAO ; Yaping CHEN ; Jiali CHEN ; Yun HAN ; Xiuting LI ; Yang ZHOU ; Xiaojing SU ; Qiong ZHANG ; Tianwen HUANG ; Ping ZHANG ; Hua LIN ; Xingling XIAO ; Ruifeng XU ; Fanghui DONG ; Bing HAN ; Luo FAN ; Yanling PEI ; Suyun LI ; Xiaoju TAN ; Rongchen GUO ; Yefang ZOU ; Xiaoyun HAN ; Junqin DING ; Yi WANG ; Shuhua DENG ; Jinli GUO ; Yinhua LIANG ; Yuan CEN ; Xiaoqin LIU ; Junru CHEN ; Haiyang YU ; Lunlan LI ; Ying REN ; Yunxia LI ; Jianli LU ; Ying YING ; Lan WEI ; Yin WANG ; Qinhong XU ; Yanqin ZHANG ; Yang LYU ; Shijun ZHANG ; Sui WENJIE ; Sanlian HU ; Shuhong YANG ; Guoqing LI ; Jingjing AN ; Baorong HE ; Leling FENG
Chinese Journal of Trauma 2025;41(6):530-541
Paraplegia caused by spinal cord injury is a serious neurological complication, for which surgery is currently the main treatment method. Due to different surgical approaches, patients are usually expected to maintain a passive prone position for a long time or switch between the supine and prone positions. Affected by multiple factors such as neurogenic sensory disorders, pathological changes in muscle tone and operative duration, the risk of intraoperative acquired pressure injury (IAPI) is significantly increased. Current clinical prevention strategies for IAPI in these patients predominantly focus on localized pressure relief during positioning, lacking systematic, standardized comprehensive prevention protocols or evidence-based guidelines. To address it, Department of Nursing, Orthopedics Branch, China International Exchange and Promotive Association for Medical and Health Care, Spinal Trauma Professional Committee, Orthopedics Branch, Chinese Medical Doctor Association, Nursing Group of Spine and Spinal Cord Professional Committee of Chinese Association of Rehabilitation Medicine organized experts in relevant fields to formulate Guideline for the prevention of intraoperative acquired pressure injury in paraplegic patients with spinal cord injury ( version 2025), based on evidence-based medical evidence and latest research results and clinical practice at home and abroad. Eleven recommendations were put forward from the aspects of preoperative risk assessment, intraoperative prevention strategies, postoperative handover and monitoring, and supportive mechanisms for IAPI prevention, aiming to standardize the prevention measures and management strategies of IAPI in paraplegic patients with spinal cord injury and accelerate the recovery of patients and improve the therapeutic effect.
5.Expert consensus on intraoperative repositioning for patients with spine fracture and dislocation (version 2025)
Dongmei BIAN ; Ke SUN ; Ningbo CHEN ; Caixia BAI ; Miao WANG ; Yafeng QIAO ; Fei WANG ; Hong WANG ; Feng TIAN ; Mei YAN ; Meng BAI ; Linjuan ZHANG ; Liyan ZHAO ; Yaqing CUI ; Xue JIANG ; Leling FENG ; Ning NING ; Junqin DING ; Lan WEI ; Yonghua ZHAI ; Yu ZENG ; Zengmei ZHANG ; Jiqun HE ; Fenggui BIE ; Hong CHEN ; Zengyan WANG ; Li LI ; Li ZHANG ; Yaying ZHOU ; Bing SHAO ; Ying WANG ; Caixia XIE ; Yanfeng YAO ; Jingjing AN ; Wen SHI ; Xiongtao LIU ; Xiaoyan AN ; Ning NAN ; Lan LI ; Xiaohui GOU ; Qiaomei LI ; Xiuting WU ; Yuqin ZHANG ; Jing LIU ; Fusen XIANG ; Xu XU ; Na MEI ; Jiao ZHOU ; Shan FAN ; Qian WANG ; Shuixia LI
Chinese Journal of Trauma 2025;41(2):138-147
Spine fracture and dislocation are common traumatic spinal conditions that often require surgical intervention due to compromised spinal stability. Surgical approaches include anterior, posterior, and combined anterior-posterior spinal procedures. According to the specific surgical requirements, patients may be placed in the prone position or repositioned between prone and supine positions during surgery. Intraoperative repositioning has become an essential step in patient positioning. However, during repositioning, patients with spinal fracture and dislocation are at increased risk for complications such as hemodynamic instability, nerve injury, and pressure injuries to the skin and soft tissue. Notably, due to the instability of the spinal cord, even minor manipulations can further exacerbate the damage, potentially leading to severe outcomes like paraplegia. Although the current clinical guidelines provide instructive recommendations for standard position, there remains no specific protocols for intraoperative repositioning in patients with spine fracture and dislocation. With a concern for the lack of clinical studies on positioning techniques, risk prevention, and operational norms for special patients, no applicable guidelines or standards are available. A consensus was required to provide clinical reference, meet the requirements of surgical treatment, and minimize the safety risks of patients caused by improper placement of positions. Professional Committee of Operating Room Nursing of Shaanxi Nursing Association organized experts in nursing management and operating room nursing from major hospitals across China to formulate Expert consensus on intraoperative repositioning for patients with spinal fracture and dislocation ( version 2025). The consensus provides 11 recommendations covering pre-repositioning preparation, intraoperative maneuvers, and post-repositioning observation, aiming to provide references for clinical standardization of the intraoperative repositioning process and protection of patients′ safety.
6.Reliability and validity of the repeatable battery for assessment of neuropsychological status scale in maintenance hemodialysis patients
Xiaoqi WANG ; Conghui LIU ; Feng SHAO ; Jingjing ZHOU ; Fan YANG ; Zhongxin LI
Journal of Capital Medical University 2025;46(5):877-884
Objective To evaluate the reliability and validity of the Chinese version of the Repeatable Battery for the Assessment of Neuropsychological Status(RBANS)in patients with maintenance hemodialysis(MHD).Methods The general information and medical history of 84 MHD patients were collected,and the Mini-Mental State Exam(MMSE),Montreal Cognitive Assessment Scale(MoCA),and RBANS were conducted.The reliability of the scale was assessed by Cronbach α and split-half reliability.The structure and convergent validity of the scale were assessed by confirmatory factor analysis,and the RBANS scores'correlation to MoCA and MMSE scores was analyzed by Spearman correlation analysis.The predictive value of the RBANS total score on cognitive impairment(CI)was analyzed by receiver operating characteristic(ROC)curve.Results The Cronbach's alpha coefficient of the RBANS total scale was 0.896,split-half reliability was 0.911,and reliability for the five dimensions of the RBANS ranged from 0.618 to 0.791.Confirmatory factor analysis indicated that the overall fit of the five-dimensional model of the RBANS scale was acceptable(χ2/df=1.587,root mean square error of approximation=0.084,comparative fit index=0.967,incremental fit index=0.968,Tucker-Lewis index=0.947,goodness of fit index=0.891).The average variance extracted(AVE)for the five dimensions of the RBANS ranged from 0.525 to 0.863,while the composite reliability(CR)ranged from 0.733 to 0.926,indicating good convergent validity of the scale.Furthermore,Spearman correlation analysis revealed that the total RBANS score was negatively correlated to the age of MHD patients and positively correlated to years of education,as well as the total scores of MMSE and MoCA(all P<0.01).The ROC curve analysis indicated that the area under the curve(AUC)for the total RBANS score in predicting CI was 0.891(P<0.01),suggesting a high predictive value.Conclusion The Chinese version of RBANS has good reliability and validity in MHD patients,and can be used as a measure of cognitive function in MHD patients.
7.Prospective Study of Disease Occurrence Spectrum in Asymptomatic Residents in Areas with High Incidence of Esophageal Cancer: 16-year Observation of 711 Cases in Natural Population
Qide BAO ; Fangzhou DAI ; Xueke ZHAO ; Jingjing WANG ; Xin SONG ; Zongmin FAN ; Yanfang ZHANG ; Zhuo YANG ; Junfang GUO ; Kan ZHONG ; Qiang ZHANG ; Junqing LIU ; Min LIU ; Lidong WANG
Cancer Research on Prevention and Treatment 2025;52(8):656-660
Objective To understand the disease spectrum of a natural village in an area with high incidence of esophageal cancer to provide a reference for precise prevention and control. Methods From 2008 to 2024, 711 asymptomatic people over the age of 35 years in a natural village with high incidence of esophageal cancer in China were surveyed, and 171 of them were subjected to gastroscopy, biopsy, and pathological examination. All participants were followed up for a long time, and their disease history was recorded. Results A total of 16 years of follow-up were performed, and 703 people were effectively followed up. In 2008, 171 people underwent gastroscopy, and 160 people had biopsy and pathological results in endoscopic screening. By 2024, 76 people had been diagnosed with malignant tumors of 12 different types, and among these people, 45 had esophageal cancer. Conclusion Esophageal cancer remains a significant cause of morbidity and mortality from malignant tumors in this region. Biopsy and pathological examination should be strengthened during gastroscopy, and follow-ups and regular check-ups should be given high importance to reduce the incidence and mortality rates of esophageal cancer.
8.Hyssopus cuspidatus extract inhibited OVA-sensitized allergic asthma through PI3K/JNK/P38 signaling pathway and lipid homeostasis regulation.
Yali ZHANG ; Huiming PENG ; Jingjing LI ; Pan LV ; Mengru ZHANG ; Xu WANG ; Siyu WANG ; Siying ZHU ; Jiankang LU ; Xuepeng FAN ; Jinbo FANG
Chinese Herbal Medicines 2025;17(3):539-547
OBJECTIVE:
To investigate the effect and mechanism of Hyssopus cuspidatus Boriss. extract (HCE) in ovalbumin (OVA)-induced allergic asthma.
METHODS:
Components identification of HCE was conducted using ultra performance liquid chromatography-quadrupole-time of flight-mass spectrometry. Mice were sensitized with OVA to establish asthmatic model, and dexamethasone was used as positive control. Respiratory reactivity, white cells counting in bronchoalveolar lavage fluid and peripheral blood, cytokine level measurement in serum and lung tissue, and histologic examination were performed to evaluate the therapeutic effect of HCE on asthma. Network pharmacology approach was used for mechanism prediction. Western blotting and untargeted lipidomics method were applied for mechanism validation.
RESULTS:
Fifty-two compounds were identified in HCE, predominantly terpenoids and flavonoids. HCE markedly reduced airway resistance, the eosinophil infiltration in lung tissues, and the levels of immunoglobulin E, interleukin-4, interleukin-5, and interleukin-13. Network pharmacology analysis suggested phosphatidylinositol 3-kinases (PI3K), c-Jun N-terminal kinase (JNK), and p38 Mitogen-activated protein kinase (p38 MAPK) may be key proteins of HCE in the treatment of allergic asthma. Western blot results indicated that the levels of phosphorylated PI3K, JNK, and P38 were downregulated in HCE-treated group. Moreover, HCE significantly upregulated the levels of ceramide and sphingomyelin and downregulated the level of phosphatidylcholine.
CONCLUSION
HCE inhibited allergic asthma via PI3K/JNK/P38 signaling pathway and lipid homeostasis regulation.
9.Effect of miR-34a-5p on hippocampal neuron apoptosis in rats with temporal lobe epilepsy and its mechanism
Jiarui LI ; Zhenlin YANG ; Fan GAO ; Jingjing GUO ; Jinzi LI
Journal of Jilin University(Medicine Edition) 2025;51(4):939-947
Objective:To discuss the effect of microRNA-34a-5p(miR-34a-5p)on the neuron apoptosis in hippocampus tissue of the rats with temporal lobe epilepsy,and to clarify its mechanism.Methods:Fifty-two male SD rats were randomly divided into control group,model group,miR-34a-5p inhibitor group,and inhibitor negative control group,and there were 13 rats in each group.The PONEMAH 6.X experimental animal telemetry platform was used to record the electroencephalogram(EEG)of the rats in various groups;real-time fluorescence quantitative PCR(RT-qPCR)was used to detect the expression levels of miR-34a-5p in hippocampus tissue of the rats in various groups;HE staining was used to observe the morphology of hippocampus tissue of the rats in various groups;TUNEL method was used to detect the apoptotic rates of neurons in hippocampus tissue of the rats in various groups;immunohistochemistry method was used to determine the positive expression rates of CDK6,p-Rb,and E2F1 proteins in hippocampus tissue of the rats in various group;Western blotting method was used to detect the expression levels of cyclin-dependent protein kinase 6(CDK6),phosphorylated retinoblastoma protein(p-Rb),and E2F transcription factor 1(E2F1)proteins in hippocampus tissue of the rats in various groups.Results:No abnormalities were observed in the rats in control group;the rats in model group,miR-34a-5p inhibitor group,and inhibitor negative control group exhibited varying degrees of drooling,trembling,bloody tears,staring,chewing tremors,followed by nodding and blinking,and finally forelimb convulsions,standing upright,and falling.Compared with control group,the total duration of epileptic seizures of the rats in model group was significantly prolonged(P<0.01);compared with model group,the total duration of epileptic seizures of the rats in miR-34a-5p inhibitor group was shortened(P<0.01);compared with miR-34a-5p inhibitor group,the total duration of epileptic seizures of the rats in inhibitor negative control group was prolonged(P<0.01).The RT-qPCR results showed that compared with control group,the expression level of miR-34a-5p in hippocampus tissue of the rats in model group was increased(P<0.01);compared with model group,the expression level of miR-34a-5p in hippocampus tissue of the rats in miR-34a-5p inhibitor group was increased(P<0.05);compared with miR-34a-5p inhibitor group,the expression level of miR-34a-5p in hippocampus tissue of the rats in inhibitor negative control group was increased(P<0.01).The HE staining results showed that compared with control group,the cell arrangement in model group was disordered;compared with model group,the cell arrangement in miR-34a-5p inhibitor group was orderly;compared with miR-34a-5p inhibitor group,the cell morphology in inhibitor negative control group was irregular.The TUNEL staining results showed that compared with control group,the apoptotic rate of neurons in CA1 region of hippocampus tissue of the rats in model group was increased(P<0.01);compared with model group,the apoptotic rate of neurons in CA1 region of hippocampus tissue of the rats in miR-34a-5p inhibitor group was decreased(P<0.05);compared with miR-34a-5p inhibitor group,the apoptotic rate of neurons in CA1 region of hippocampus tissue of the rats in inhibitor negative control group was increased(P<0.05).The immunohistochemistry results showed that compared with control group,the positive expression rates of CDK6,p-Rb and E2F1 proteins in hippocampus tissue of the rats model group were increased(P<0.05 or P<0.01);compared with model group,the positive expression rates of CDK6,p-Rb and E2F1 proteins in hippocampus tissue of the rats in miR-34a-5p inhibitor group were decreased(P<0.05);compared with miR-34a-5p inhibitor group,the positive expression rates of CDK6,p-Rb and E2F1 proteins in hippocampus tissue of the rats in inhibitor negative group were increased(P<0.05 or P<0.01).The Western blotting results showed that compared with control group,the expression levels of CDK6,p-Rb,and E2F1 proteins in hippocampus tissue of the rats in model group were increased(P<0.01);compared with model group,the expression levels of CDK6,p-Rb,and E2F1 proteins in hippocampus tissue of the rats in miR-34a-5p inhibitor group were decreased(P<0.05 or P<0.01);compared with miR-34a-5p antagomir group,the expression levels of CDK6,p-Rb,and E2F1 proteins in hippocampus tissue of the rats in inhibitor negative control group were increased(P<0.05 or P<0.01).Conclusion:The expression of miR-34a-5p is upregulated in the hippocampal tissue of temporal lobe epilepsy rats,and hippocampal neuron apoptosis is increased.Inhibition of miR-34a-5p expression can reduce the hippocampal neuron apoptotic rate,and its mechanism may be related to the regulation of CDK6,p-Rb,and E2F1 protein expressions in the hippocampus tissue by miR-34a-5p.
10.Predicting mortality risk in severe ards patients using indirect calorimetry-based oxygen consumption and carbon dioxide production rates
Ke GUAN ; Huihuang ZOU ; Yuna HU ; Ling YE ; Yanwei CHENG ; Jingjing NIU ; Cunzhen WANG ; Ke QIN ; Tingyuan ZHANG ; Bin YANG ; Yuhan SUN ; Wenliang ZHU ; Qingbo FAN ; Zhisong GUO ; Yongchun CHEN ; Wenjie WANG
Chinese Journal of Emergency Medicine 2025;34(3):396-403
Objective:To investigate the relationship between oxygen consumption (VO 2), carbon dioxide production (VCO 2), and Oxygen Consumption/lactate (VO 2/Lac) with risk of death in patients with severe ARDS. Methods:A retrospective cohort study method was used, and the study subjects were hospitalized for >5 days adult patients with severe ARDS in the central intensive care unit of Henan Provincial People's Hospital from 1 March 2020 to 30 June 2023. The following patients were excluded: IC test was not completed on the 4th day of ICU admission, IC test results were unreliable, mechanical ventilation duration had exceeded 48 h at the time of ICU transfer or admission, palliative care patients and pregnant and parturient women. Using indirect calorimetry to determine VO 2 and VCO 2 values on the 4th day of admission, reviewing medical records to obtain general condition, disease information, blood gas analysis (including lactate value), diagnostic and therapeutic measures, and following up deaths by telephone and time of death. The primary outcome measure was death at 90 days, and the secondary outcome measure was death at 28 days, length of stay in ICU, total length of stay, and total hospitalization cost. Cox regression analysis and linear regression analysis were used to investigate the relationship between VO 2, VCO 2, VO 2/Lac and primary and secondary outcome indexes. Results:A total of 216 patients were enrolled, 78 patients (36.1%) died and 138 patients (63.9%) survived at 90 days. After correction for confounders, the results of multifactorial Cox regression analysis suggested that compared with the Q4 group, HR (95% CI) for 90-day risk of death in the VO 2 Q1 and Q2 groups was 3.21 (1.38, 7.49) and 3.24 (1.42, 7.38), and HR (95% CI) for 90-day risk of death in the VCO 2 Q1, Q2 and Q3 groups was 5.88 (2.33, 14.84), 4.26 (1. 60, 11.34) and 3.54 (1.34, 9.35), respectively, and the HR (95% CI) for 90-day risk of death in the VO 2/Lac Q1, Q2 and Q3 groups were 8.72 (3.01, 25.25), 8.43 (2.91, 24.47) and 4.04 (1.34, 12.17) respectively. P-trends were all <0.05, indicating that VO 2, VCO 2 and VO 2/Lac were linearly and negatively associated with the risk of 90-day mortality. In addition, VO 2, VCO 2, and VO 2/Lac were negatively associated with 28-day risk of death and higher VO 2/Lac was negatively associated with length of ICU stay. Conclusions:VO 2, VCO 2 and VO 2/Lac were negatively associated with 90-day mortality risk and 28-day mortality risk in patients with severe ARDS and may be independent risk factors predicting mortality risk of such patients.

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