1.Analysis of Surgical Treatment Outcomes in 709 Cases of Infective Endocarditis
Chaoji ZHANG ; Zining WU ; Xingrong LIU ; Guotao MA ; Shangdong XU ; Jianzhou LIU ; Sheng YANG ; Yanxue ZHAO ; Xinpei LIU ; Xiaocui WANG ; Xiaojun MA ; Ligang FANG ; Chunhua YU ; Huaiwu HE ; Qi MIAO ; Jun ZHENG
Medical Journal of Peking Union Medical College Hospital 2025;17(1):197-203
To review the clinical characteristics, short-term outcomes, and risk factors of patients with infective endocarditis(IE) who underwent surgical treatment at a single center, and to summarize treatment experience. Consecutive patients diagnosed with IE who underwent cardiac surgery at the Department of Cardiac Surgery, Peking Union Medical College Hospital between May 2012 and June 2024 were enrolled. Statistical analyses were performed on their baseline characteristics, comorbidities, IE predisposing factors, surgical indications, pathogen distribution, surgical strategies, short-term outcomes, and associated risk factors. A total of 709 IE patients meeting the inclusion and exclusion criteria were included. IE involved left-sided valves in 85.3% of cases. The median age was 48(35, 58) years, and 68.0% were male. Prosthetic valve endocarditis accounted for 8.7%. Patients with left-sided IE had a higher prevalence of comorbidities. Streptococcus was the causative pathogen in 43.2% of patients, while right-sided IE was more frequently associated with Significant differences in pathogen distribution were observed between patients with left-sided and right-sided IE. Heart failure was identified as an independent risk factor for both perioperative mortality and adverse outcomes in surgically treated patients. Through strict timing of surgical intervention and optimized perioperative management, surgical treatment may effectively reduce mortality and improve prognosis in patients with IE.
2.Research and exploration on the construction path of multi-campus smart hospital
Yanting ZHAO ; Yake LU ; Linpeng YANG ; Xinpei YUE ; Min ZHAO ; Shuoguo WANG ; Huixin HAN ; Xinkui LIU
Modern Hospital 2024;24(3):420-423
The construction of smart hospital is an important part of modern hospital management system,and it is also the key way to build the new system of high-quality hospital development.In terms of building smart hospitals,multi-campus hos-pitals face more difficulties and challenges than single campus hospitals,such as the lack of top-level design,the difficulty of in-tegrated management,the uneven development of hospitals and the widespread phenomenon of information islands.This study summarizes and analyzes the difficulties encountered in the construction and application of smart hospitals in multi-hospital areas.Guided by problems,it puts forward countermeasures and suggestions for the construction of refined and high-quality smart hospi-tals in multi-campus hospitals,including strengthening overall and forward-looking awareness,integrating management according to hospital conditions,characteristic development under demand guidance,establishing a data integration center for smart hospi-tals,scientific planning of talent reserve and discipline layout,etc.
3.Establishment and evaluation of two common pressure ulcer rat models
Yi LIU ; Xiaolei LI ; Xinpei LIANG ; Na WANG ; Shan MA ; Xinping ZHANG ; Rufu JIA ; Su ZHANG ; Xian LI
Chinese Journal of Comparative Medicine 2024;34(3):93-101
Objective A comparison of two method of establishing pressure ulcer rat models to determine which is the most suitable for experimental use.Methods 18 male SD rats were randomly divided into control(n=6),model A(n=6)and model B(n=6)groups.In the control group,iodophor treatment was given after hair removal at the simulated modeling site.In model group A,longitudinal compression was performed by simple deep-tissue foreign body implantation.In model group B,transverse compression was performed via the magnet compression method.The times required to complete the process and for each stage of pressure ulcer model establishment in each group were recorded.The general condition of the rats was observed,and the modeling rate,mortality rate,and infection rate were compared.Results By naked eye,we observed that the model A and model B groups gradually developed redness and swelling,ulceration,bleeding,exudation,and necrosis.Comparison of the whole time to produce pressure uler between model A and model B groups:the difference between the two groups was statitically significant(P<0.05).Comparison of the time to produce pressure injury between Model A and Model B:The difference between the two groups at stage Ⅰ was not statistically significant(P>0.05);the difference between the two groups at stage Ⅱ was statistically significant(P<0 05);the difference between the two groups at stage Ⅲ was statistically significant(P<0 05);the difference between the two groups at stage Ⅳ was statistically significant(P<0 05).The mental and sports scores of the rats in the control group were significantly different from those in the model A and model B groups(P<0.05).The general state of rats in the model group A was significantly different from that in the model B group,and coat color was dimer and activity decreased in the model group A.The modelling rate of rats in both model A and model B groups was 100%.The mortality and infection rates of the model group A were higher than those of the model group B,which were 33.34%and 16.70%,respectively.Conclusions Successful preparation of a four-stage model of pressure ulers in both modalities.The two method have both commonalities and distinct characteristics.The magnet compression method required less time,the rats were generally in good condition,and the mortality and infection rates were low;thus it is suitable for short-term intervention research.The simple deep-tissue foreign body implantation method took longer,required rats to have a certain level of tolerance,had high infection and mortality rates,and is more suitable for use for long-term observations of pressure ulcers.
4.A prospective single-arm study of the efficacy and safety of lobaplatin-based HIPEC combined with optimal support in the treatment of abdominal metastatic cancer
Zhui KE ; Jie GAO ; Jingyi LU ; Xinpei LUO ; Xuemin HE ; Zhuqing LIU ; Min YUAN ; Xianling GUO ; Qing XU
China Oncology 2024;34(12):1115-1122
Background and purpose:Lobaplatin,as a traditional chemotherapeutic drug,is widely used in the treatment of malignant tumor.In recent years,its application in the field of hyperthermic intraperitoneal chemotherapy(HIPEC)has garnered increasing attention.This study evaluated the efficacy and safety of lobaplatin-based HIPEC in advanced abdominal metastatic cancer.Methods:This study collected data of patients with advanced cancers and malignant ascites who treated in the Cancer Center of Shanghai Tenth People's Hospital,Tongji University School of Medicine,from January 2019 to January 2023.We excluded patients who did not meet the inclusion criteria.Short-term efficacy was assessed by changes in ascitic fluid volume,and long-term survival was analyzed using the Kaplan-Meier method.The correlation between CA12-5 levels before and after treatment was evaluated using Pearson correlation analysis.Baseline characteristics and treatment outcomes were described using descriptive statistics,and the changes in CA12-5 levels before and after treatment were compared using significance tests(P<0.01).Data entry and statistical analyses were conducted using SPSS version 26.0,and survival curves and efficacy plots were generated with GraphPad Prism(10.4.0 version).The study was approved by the Ethics Committee of Shanghai Tenth People's Hospital(Ethics approval number:SHSY-IEC-5.0/24K134/P01).This prospective single-arm study strictly adhered to the guideline of Consolidated Standards of Reporting Trials(CONSORT)checklist.Results:A total of 21 patients were enrolled in this study.The median age of the patients was 61 years(ranging from 31 to 71 years).Among the 21 patients,5(23.8%)achieved complete remission(CR),5(23.8%)achieved partial remission(PR),8(38.1%)had stable disease(SD),and 3(14.3%)experienced disease progression(PD).The overall response rate(ORR)was 47.6%,and the disease control rate(DCR)was 85.7%.Survival analysis revealed a median progression-free survival(PFS)of 12.33 months and a median overall survival(OS)of 16.37 months.Analysis of tumor markers showed a significant negative correlation between efficacy and CA12-5 levels(P<0.01).Adverse reactions primarily included myelosuppression,hepatic and renal impairment,and nausea and vomiting,with most adverse events being mild to moderate.Conclusion:Lobaplatin-based HIPEC is effective in the treatment of advanced gastrointestinal malignancies with malignant ascites,providing survival benefits and demonstrating good safety.CA12-5 may serve as a valuable predictor of poor prognosis.
5.A prospective single-arm study of the efficacy and safety of lobaplatin-based HIPEC combined with optimal support in the treatment of abdominal metastatic cancer
Zhui KE ; Jie GAO ; Jingyi LU ; Xinpei LUO ; Xuemin HE ; Zhuqing LIU ; Min YUAN ; Xianling GUO ; Qing XU
China Oncology 2024;34(12):1115-1122
Background and purpose:Lobaplatin,as a traditional chemotherapeutic drug,is widely used in the treatment of malignant tumor.In recent years,its application in the field of hyperthermic intraperitoneal chemotherapy(HIPEC)has garnered increasing attention.This study evaluated the efficacy and safety of lobaplatin-based HIPEC in advanced abdominal metastatic cancer.Methods:This study collected data of patients with advanced cancers and malignant ascites who treated in the Cancer Center of Shanghai Tenth People's Hospital,Tongji University School of Medicine,from January 2019 to January 2023.We excluded patients who did not meet the inclusion criteria.Short-term efficacy was assessed by changes in ascitic fluid volume,and long-term survival was analyzed using the Kaplan-Meier method.The correlation between CA12-5 levels before and after treatment was evaluated using Pearson correlation analysis.Baseline characteristics and treatment outcomes were described using descriptive statistics,and the changes in CA12-5 levels before and after treatment were compared using significance tests(P<0.01).Data entry and statistical analyses were conducted using SPSS version 26.0,and survival curves and efficacy plots were generated with GraphPad Prism(10.4.0 version).The study was approved by the Ethics Committee of Shanghai Tenth People's Hospital(Ethics approval number:SHSY-IEC-5.0/24K134/P01).This prospective single-arm study strictly adhered to the guideline of Consolidated Standards of Reporting Trials(CONSORT)checklist.Results:A total of 21 patients were enrolled in this study.The median age of the patients was 61 years(ranging from 31 to 71 years).Among the 21 patients,5(23.8%)achieved complete remission(CR),5(23.8%)achieved partial remission(PR),8(38.1%)had stable disease(SD),and 3(14.3%)experienced disease progression(PD).The overall response rate(ORR)was 47.6%,and the disease control rate(DCR)was 85.7%.Survival analysis revealed a median progression-free survival(PFS)of 12.33 months and a median overall survival(OS)of 16.37 months.Analysis of tumor markers showed a significant negative correlation between efficacy and CA12-5 levels(P<0.01).Adverse reactions primarily included myelosuppression,hepatic and renal impairment,and nausea and vomiting,with most adverse events being mild to moderate.Conclusion:Lobaplatin-based HIPEC is effective in the treatment of advanced gastrointestinal malignancies with malignant ascites,providing survival benefits and demonstrating good safety.CA12-5 may serve as a valuable predictor of poor prognosis.
6.Progress of immunotherapy strategies for uveal melanoma
Xinpei JI ; Mingyan HUANG ; Qiuyan LIU
Cancer Research and Clinic 2023;35(8):629-633
Uveal melanoma (UM) is the most common intraocular malignancy in adults. Recently, great progresses have been made in the diagnosis, treatment and prognosis of UM, however, nearly 50% of patients still develop liver metastases, which severely affects on the survival of UM patients. Whether UM patients will benefit from the immune checkpoint blockade similarly as the cutaneous melanoma (CM)? Whether the specific gene mutations targeting UM could improve the anti-tumor efficacy? Whether chimeric antigen receptor T cell or T cell receptor T cell immunotherapy is effective to UM patients with liver metastases? How about the combinational therapies in UM and the clinical effects? This review summarizes the anti-tumor research and novel treatment options of UM, analyzes the current achievements and problems.
7.Detection method of early heart valve diseases based on heart sound features.
Chengfa SUN ; Xinpei WANG ; Changchun LIU
Journal of Biomedical Engineering 2023;40(6):1160-1167
Heart valve disease (HVD) is one of the common cardiovascular diseases. Heart sound is an important physiological signal for diagnosing HVDs. This paper proposed a model based on combination of basic component features and envelope autocorrelation features to detect early HVDs. Initially, heart sound signals lasting 5 minutes were denoised by empirical mode decomposition (EMD) algorithm and segmented. Then the basic component features and envelope autocorrelation features of heart sound segments were extracted to construct heart sound feature set. Then the max-relevance and min-redundancy (MRMR) algorithm was utilized to select the optimal mixed feature subset. Finally, decision tree, support vector machine (SVM) and k-nearest neighbor (KNN) classifiers were trained to detect the early HVDs from the normal heart sounds and obtained the best accuracy of 99.9% in clinical database. Normal valve, abnormal semilunar valve and abnormal atrioventricular valve heart sounds were classified and the best accuracy was 99.8%. Moreover, normal valve, single-valve abnormal and multi-valve abnormal heart sounds were classified and the best accuracy was 98.2%. In public database, this method also obtained the good overall accuracy. The result demonstrated this proposed method had important value for the clinical diagnosis of early HVDs.
Humans
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Heart Sounds
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Heart Valve Diseases/diagnosis*
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Algorithms
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Support Vector Machine
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Signal Processing, Computer-Assisted
8.Study of the protective effects of lower body negative pressure strategy and thigh cuff strategy on cerebral blood flow during simulated push pull maneuver
Changyang XING ; Yuan GAO ; Xinpei WANG ; Yunnan LIU ; Jiaxin ZHANG ; Chen WANG ; Xing ZHANG ; Jia LI ; Ting CHANG ; Shu ZHANG ; Yong LIU ; Lijun YUAN ; Feng GAO
Chinese Journal of Aerospace Medicine 2021;32(1):1-6
Objective:To compare the protective effects of cerebral blood flow during simulated push pull maneuver (PPM) between lower body negative pressure (LBNP) strategy and thigh cuff (TC) strategy.Methods:It was a repeated cross-over design study. Fifteen healthy young male subjects were recruited. All subjects underwent the control bout (simulated PPM without any intervention), PPM with LBNP bout, and PPM with TC bout. Such position changes as "upright to head down tilt to upright" were performed by tilting table to simulate PPM. The control bout underwent normal PPM. LBNP of -40 mmHg (1 mmHg=0.133 kP) was applied prior to and during -G z stress and released at the subsequent transition to +G z stress in LBNP bout. TC of +200 mmHg was applied at bilateral upper thighs prior to and during simulated PPM. Beat-to-beat cerebral and systemic hemodynamics of the subjects were continuously recorded. Results:During the rapid -G z to +G z transition, the mean cerebral blood flow velocity (CBFVm) was decreased by 0.7-17.3 cm/s [ΔCBFVm=(-7.5±4.5) cm/s], and the mean arterial pressure at the level of middle cerebral artery(MAP MCA) was decreased by 42-76 mmHg [ΔMAP MCA=(-61.0±10.0) mmHg] in control bout. However, the change of CBFVm was -2.4-10.2 cm/s in LBNP bout, whose average value was increased (3.3±4.1) cm/s rather than decreased. The drop of MAP MCA was 23-50 mmHg [ΔMAP MCA=(-41.0±11.0) mmHg], which was significantly reduced than that in control bout ( P<0.05). The change of CBFVm in TC bout was -7.9-1.4 cm/s [ΔCBFVm=(-3.0±4.2) cm/s], and the decrease of ΔMAP MCA was 37-59 mmHg [ΔMAP MCA=(-47.0±13.0) mmHg], both of which were significantly smaller than that in control bout ( P<0.05). There was significant difference in ΔCBFVm between LBNP and TC bouts ( P<0.05), while no significant difference was found in ΔMAP MCA. Conclusions:Both the LBNP and TC strategies can protect the cerebral blood flow during simulated PPM. LBNP strategy showed better improvement of CBFVm than TC. Both strategies demonstrated protective effect by increasing diastolic cerebral blood flow.
9.Study of the protective effects of lower body negative pressure strategy and thigh cuff strategy on cerebral blood flow during simulated push pull maneuver
Changyang XING ; Yuan GAO ; Xinpei WANG ; Yunnan LIU ; Jiaxin ZHANG ; Chen WANG ; Xing ZHANG ; Jia LI ; Ting CHANG ; Shu ZHANG ; Yong LIU ; Lijun YUAN ; Feng GAO
Chinese Journal of Aerospace Medicine 2021;32(1):1-6
Objective:To compare the protective effects of cerebral blood flow during simulated push pull maneuver (PPM) between lower body negative pressure (LBNP) strategy and thigh cuff (TC) strategy.Methods:It was a repeated cross-over design study. Fifteen healthy young male subjects were recruited. All subjects underwent the control bout (simulated PPM without any intervention), PPM with LBNP bout, and PPM with TC bout. Such position changes as "upright to head down tilt to upright" were performed by tilting table to simulate PPM. The control bout underwent normal PPM. LBNP of -40 mmHg (1 mmHg=0.133 kP) was applied prior to and during -G z stress and released at the subsequent transition to +G z stress in LBNP bout. TC of +200 mmHg was applied at bilateral upper thighs prior to and during simulated PPM. Beat-to-beat cerebral and systemic hemodynamics of the subjects were continuously recorded. Results:During the rapid -G z to +G z transition, the mean cerebral blood flow velocity (CBFVm) was decreased by 0.7-17.3 cm/s [ΔCBFVm=(-7.5±4.5) cm/s], and the mean arterial pressure at the level of middle cerebral artery(MAP MCA) was decreased by 42-76 mmHg [ΔMAP MCA=(-61.0±10.0) mmHg] in control bout. However, the change of CBFVm was -2.4-10.2 cm/s in LBNP bout, whose average value was increased (3.3±4.1) cm/s rather than decreased. The drop of MAP MCA was 23-50 mmHg [ΔMAP MCA=(-41.0±11.0) mmHg], which was significantly reduced than that in control bout ( P<0.05). The change of CBFVm in TC bout was -7.9-1.4 cm/s [ΔCBFVm=(-3.0±4.2) cm/s], and the decrease of ΔMAP MCA was 37-59 mmHg [ΔMAP MCA=(-47.0±13.0) mmHg], both of which were significantly smaller than that in control bout ( P<0.05). There was significant difference in ΔCBFVm between LBNP and TC bouts ( P<0.05), while no significant difference was found in ΔMAP MCA. Conclusions:Both the LBNP and TC strategies can protect the cerebral blood flow during simulated PPM. LBNP strategy showed better improvement of CBFVm than TC. Both strategies demonstrated protective effect by increasing diastolic cerebral blood flow.
10.MiR-494 alleviates hepatic ischemia-reperfusion injury in rats by activating PI3K/AKT signaling pathway
Xinpei CHEN ; Song SU ; Pengcheng ZHOU ; De LUO ; Xiangdong LIU ; Anding LIU ; Bo LI
Organ Transplantation 2019;10(3):295-
Objective To investigate the effect and related mechanism of microRNA (miR)-494 on the hepatic ischemia-reperfusion injury (HIRI). Methods Twenty-four male SD rats were randomly divided into four groups (n=6 in each group). In the sham operation group, abdominal surgery without hepatic ischemia-reperfusion was performed. In the HIRI group, partial liver ischemia was performed for 60 min, followed by 6 h perfusion. In the HIRI+agomir-miR-494 group, intraperitoneal injection of agomir-miR-494 (20 μL) was daily given within preoperative 7 d. In HIRI+agomir-NC group, an equivalent quantity of agomir-NC was daily injected intraperitoneally within preoperative 7 d. The expression level of miR-494 messenger RNA(mRNA) in the liver tissues in each group was detected by reverse transcription polymerase chain reaction (RT-PCR). The expression levels of liver injury and oxidative stress related indexes were measured by relevant kits. The histopathological changes of the liver in each group were observed. The quantity of apoptotic cells and cytoplasmic histone-related DNA fragments in the liver tissues of rats was detected by relevant kits. The expression levels of the proteins related to the phosphatidylinositol-3-kinase(PI3K)/protein kinase(AKT) signaling pathway were measured by Western blot. Results The expression level of miR-494 mRNA in the rat liver tissues in the HIRI+agomir-miR-494 group was significantly higher than that in the HIRI+agomir-NC group (

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