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Hidden-mortality risk among patients deemed“low-risk”following high-risk operations

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Hepatobiliary Surgery and Nutrition 2022年第2期11卷 311-313页

作者： yongliang sun Wenquan Niu Zhiying Yang Department of Hepatobiliary Surgery China-Japan Friendship HospitalBeijingChina Institute of Clinical Medical Sciences China-Japan Friendship HospitalBeijingChina

In the surgical field,growing attention has been paid to the identification of patients with a particularly high predisposition to postoperative morbidity and mortality following high-risk *** hepatopancreatic operation is one of the most complex surgical procedures,and it places a heavy burden on individuals and public health *** latest statistics reveal that an estimated 40.5%of patients undergoing hepatopancreatic operation have experienced at least 1 postoperative complication,and about 1.3%of these patients died within 30 days(1).Given the high burden associated with high-risk operations,research efforts have shifted toward the identification and management of patients at the highest risk of morbidity and mortality,but have overlooked the hidden risk among patients labeled“low risk”by multiple prognostic tools(2,3).Whether such hidden risks merit special consideration or can be overlooked is currently an open question and the subject of ongoing debate.

关键词： patients mortality operations

Neoplastic polyps in gallbladder: a retrospective study to determine risk factors and treatment strategy for gallbladder polyps

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Hepatobiliary Surgery and Nutrition 2019年第3期8卷 219-227页

作者： yongliang sun Zhiying Yang Xu Lan Haidong Tan Department of General Surgery China-Japan Friendship HospitalBeijing 100029China Department of Comprehensive Internal Medicine Xiyuan HospitalChina Academy of Chinese Medical SciencesBeijing 100091China

Background:Preoperative differentiation of malignant and premalignant gallbladder polyps(GBPs)from benign lesions is a key imperative to guide treatment *** aimed to characterize the various types of GBPs and sought to identify the risk factors for neoplastic *** findings may help optimize treatment ***:Retrospective analysis of 686 patients with post-cholecystectomy pathologically-proven GBPs between January 2003 and December *** patients were classified into non-neoplastic polyp group,benign neoplastic polyp group,and adenoma canceration *** features,ultrasound findings,and results of laboratory investigations and histopathological examination were reviewed and compared between the ***:Out of 686 patients,542(79.0%)had non-neoplastic polyps,134(19.5%)had neoplastic polyps,and 10(1.5%)had adenoma *** mean age was 46.06±12.12 years;383(55.8%)patients were *** median(25th percentile,75th percentile)time between diagnosis and surgery in the cholesterol polyp group[24(3.5,60)months]was significantly longer than that in adenoma[12(2,60)months]and adenoma canceration[5(0.475,12)months]*** mean diameter was 1.14±0.61 cm(range,0.5–8.4 cm).Three hundred twelve(45.5%)patients had solitary polyps and intralesional blood flow was observed in 41(6.0%)*** univariate analysis,age>49.5 years,polyp size>1.15 cm,solitary polyp,intralesional blood flow,absence of symptoms,and lack of cholecystitis showed a significant association with *** multivariate analysis,polyp size(>1.15 cm),intralesional blood flow,and lack of cholecystitis were independent predictors of ***:Polyp size>1.15 cm,intralesional blood flow,and lack of cholecystitis were predictors of neoplastic *** transformation of adenoma may occur over a relatively short time.

关键词： Gallbladder polyp(GBP) adenoma cholesterol malignancy predictive factors

Climate change and sandy land development in Qinghai Lake Watershed,China

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Frontiers of Environmental Science & Engineering 2008年第3期2卷 340-348页

作者： yongliang sun Xiaoyan LI Lianyou LIU Heye XU Dengshan ZHANG State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal UniversityBeijing 100875China Institute of Land Resources College of Resources Science and TechnologyBeijing Normal UniversityBeijing 100875China

The Qinghai Lake Watershed,containing the largest saline lake in northwest of China,has suffered from severe sandy land development in recent *** paper analyzcs its daily precipitation,temperature,and wind from 1958 to 2001,and the spatial and temporal distributions of sandy land through the interpretation of remote sensing images covering four years(1977,1987,2000,and 2004).Results showed that since the middle of the 1960s,the daily precipitation(P)of 020 mm increased significantly(S<0.05)in their annual total amounts and *** maximum daily precipitation also increased *** the maximum dry spell and the total dry spell of more than ten days had a significant upward *** the beginning of the 1960s,all the extremely high,extremely low and mean temperatures increased signifi-cantly(S<0.01),at a rate of 0.1℃/10a,0.2℃/10a,and 0.2℃/10a,*** days with extremely high temperature had a significant upward trend,while the days with extremely low temperature had a significant downward *** Qinghai Lake was significantly shrinking(S<0.01)and provided abundant sediments for Aeolian *** NNW wind prevailed in the watershed,and the largest scale wind was from the west and concentrated on the dry *** a result,the sandy land was mainly born on the east bank of Qinghai *** total sandy land area in the watershed had grown from 587.4 km^(2),660.7 km,697.6 km^(2) to.805.8 km^(2),accordingly,its area percentage growing from 2.0%,2.2%,2.4% to 2.7%,respectively.

关键词： climate change sandy land Qinghai Lake Watershed

Characteristics of stemflow for sand-fixed shrubs in Mu Us sandy land, Northwest China

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Chinese Science Bulletin 2008年第14期53卷 2207-2214页

作者： YANG ZhiPeng LI XiaoYan LIU LianYou WU JianJun HASI Eerdun sun yongliang State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal University Beijing 100875 China Institute of Land Resources College of Resources Science and Technology Beijing Normal University Beijing 100875 China Academy of Disaster Reduction and Emergency Management Ministry of Affairs & Ministry of Education Beijing Normal University Beijing 100875 China

Little work has been done on stemflow for desert shrubs in China. This study measured stemflow in two shrubs of Salix psammophila C. Wang et Chang Y. Yang and Artemisia sphaerocephala Krasch in Mu Us sandy land and established a relationship between stemflow and canopy characteristics, rainfall amount and intensity. During the experimental period, the amount of stemflow for S. psammophila and A. sphaerocephala accounted for 7.6% and 2.7% of the gross rainfall respectively. Statistical analysis showed that there was a significant positive linear correlation between rainfall and stemflow for the two shrubs; while the relationship between stemflow percentage and rainfall suggested that there existed a rainfall depth threshold of 3―5 mm for S. psammophila and 5―7 mm for A. sphaerocephala. Stemflow percentage positively increased with rainfall depth increasing before the rainfall depth threshold values had been reached but showed stability after the threshold. A stepwise regression analysis suggested that the shrubs with more branches, larger crown volume and smaller branch angle inclination tended to collect more volumes of stemflow. Moreover, stemflow amount and percentage increased with the maximum rain intensity increasing in 10 minutes (I10) and the stemflow percentage tended to increase quickly with I10 when it was less than 3.0 mm h-1 for S. psammophila and 2.0 mm h-1 for A. sphaero- cephala, and then showed stable trend with increasing of I10.

关键词：中国北方沙地干流灌木

Development and application of the new BPM system data processing program at Hefei light source

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Nuclear Science and Techniques 2012年第5期23卷 261-266页

作者： MA Tianji YANG yongliang sun Baogen ZOU Junying LU Ping ZHOU Zeran XU Hongliang NSRL School of Nuclear Science and Technology University of Science and Technology of China Hefei 230029 China

A data processing program has been applied for the new beam position monitor (BPM) system of the storage ring at Hefei Light Source (HLS). The new BPM system in the upgrade project will be equipped with Libera Brilliance BPM processors to replace the old Bergoz MX-BPM processors. The embedded Linux system on Libera has completed some important work, including instrument status check,data acquisition, position calculation, EPICS IOC data release,and so on. A new EPICS record type has been developed to recalculate the beam position with log-ratio method. The property of the new position data was analyzed in the time and frequency domain. The results show that the rms value of beam position measurement resolution can be up to submicron. Preliminary studies have been carried out on the measurement of the tune and the beam lifetime with this new BPM system.

关键词：数据处理程序 PM系统合肥光源嵌入式Linux系统 EPICS 应用开发位置数据

Effect of soil crust on evaporation and dew deposition in Mu Us sandy land,China

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Frontiers of Environmental Science & Engineering 2008年第4期2卷 480-486页

作者： yongliang sun Xiaoyan LI Heye XU Zhipeng YANG Jia TANG Xiaoying ZHANG Institute of Land Resources College of Resources Science and TechnologyBeijing Normal UniversityBeijing 100875China

The development of soil crust on sandy land may affect the surface hydrological *** paper investigates the process of evaporation and dew deposition influenced by different soil surface types which were dominated by sand,primitive biotic crust,and advanced biotic crust,respectively,in the south fringe of Mu Us sandy land in Northwest China from July to September of *** experimental results indicate that the advanced biotic crust could increase evaporation and dew deposition compared to the primitive biotic crust and bare sand although the differences between them were not *** average evaporation from advanced biotic crust,primitive biotic crust and sand was 6.8,6.6,and 6.5 mm/d,respectively,and water content is around 16.2%in the condition of initially identical *** average dew amount on advanced biotic crust was 0.116 mm/d with extreme 0.05 and 0.24 mm/*** average values on primitive biotic crust and sand were 0.105 and 0.101 mm/d,respectively,with extreme 0.04 and 0.21 mm/d for both ***,the dew deposition on advanced biotic crust seemed stable and might rest for a longer time than that on primitive biotic crust and *** results suggest that the advanced biotic crust possibly facilitates evaporation and dew ***,the development of biotic crust may potentially enhance the hydrological circulation in the upper sand layer in sandy land.

关键词： soil crust evaporation dew deposition sandy land

Laparoscopic versus open surgery in treating patients with gallbladder cancer: a systematic review and meta-analysis

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Hepatobiliary Surgery and Nutrition 2024年第3期13卷 444-459,I0012-I0014页

作者： Duo Li Li Xu Xiangling Deng yongliang sun Zihuan Zhang Tianxiao Wang Ruili Wei Yingjixing Luo Wenquan Niu Zhiying Yang Graduate School Peking Union Medical College and Chinese Academy of Medical SciencesBeijingChina Department of General Surgery China-Japan Friendship HospitalBeijingChina Graduate School Beijing University of Chinese MedicineBeijingChina Department of Pediatrics China-Japan Friendship HospitalBeijingChina Graduate School Peking University Health Science CenterBeijingChina Graduate School Capital Medical UniversityBeijingChina Center for Evidence-Based Medicine Capital Institute of PediatricsBeijingChina

Background:Concerns over the security of laparoscopic radical operation for gallbladder cancer(GBC)*** systematic review and meta-analysis attempted to compare the safety and efficacy of laparoscopic surgery(LS)versus open surgery(OS)in the treatment of ***:The PubMed,EMBASE,and Web of Science were searched from inception to July 18,*** search,quality assessment,and data extraction were completed independently and in ***-size estimates expressed as weighted mean difference(WMD)or odds ratio(OR)with 95%confidence interval(CI)were derived under the random-effects ***:A total of 27 independent studies including 2,868 participants were *** was noted for intraoperative blood loss(WMD:−117.194,95%CI:−170.188 to 64.201,P<0.001),harvested lymph nodes(WMD:−1.023,95%CI:−1.776 to−0.269,P=0.008),postoperative hospital stay(WMD:−3.555,95%CI:−4.509 to−2.601,P<0.001),postoperative morbidity(OR:0.596,95%CI:0.407 to 0.871,P=0.008),overall survival rate at 2-year(OR:1.524,95%CI:1.143 to 2.031,P=0.004),T2 survival at 1-year(OR:1.799,95%CI:1.777 to 2.749,P<0.01)and 2-year(OR:2.026,95%CI:1.392 to 2.949,P<0.001),as well as T3 survival at 1-year(OR:2.669,95%CI:1.564 to 4.555,P<0.001)and 2-year(OR:2.300,95%CI:1.308 to 4.046,P=0.004).Subgroup analyses revealed that ethnicity,incidental GBC,sample size,and follow-up period were possible sources of *** was a low probability of publication bias for all outcomes except postoperative ***:Our findings indicated that LS statistically had better 2-year survival rates,less intraoperative bleeding,shorter hospitalization times,and lower rates of complications than ***,the superiority and even the safety of LS still remain an open question due to the impact of incidental GBC,unaccounted heterogeneity,publication bias,lymph node dissection,and port-site metastasis.

关键词： Systematic review and meta-analysis gallbladder cancer(GBC) laparoscopic surgery(LS) open surgery survival

Reducing the Rate of Unplanned Extubation of Venous Access in Perioperative Patients

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Journal of Clinical and Nursing Research 2022年第6期6卷 105-116页

作者： Guimei Zhang Shujie Liu yongliang sun Lijun Jiang Anesthesiology Department The Third People’s Hospital of ShenzhenShenzhen 518112Guangdong ProvinceChina Central Operating Room 2 Harbin Medical University Cancer HospitalHarbin 150081Heilongjiang ProvinceChina

Objective:To investigate the application effect of quality control circle activities in reducing the rate of unplanned extubation of venous access in perioperative ***:The quality control circle method was used to analyze the causes,identify the actual causes of unplanned out-of-control,take corresponding measures,formulate corresponding countermeasures,implement standardized management,and carry out continuous ***:Following the implementation of quality control circle activities,the rate of unplanned extubation of venous access in perioperative patients decreased from 27.35%before improvement to 3.42%after ***:The use of quality control circle activities in the safety management of venous access in perioperative patients is conducive to reducing the rate of unplanned extubation of venous access in perioperative patients.

关键词： Quality control circle Unplanned extubation

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改性橡胶木力学性能试验研究

建筑结构 2021年第9期51卷 109-113页

作者：孙永良同济大学建筑设计研究院(集团)有限公司上海200092

经过物理和高压化学处理后,改性橡胶木具有良好的防火和耐腐蚀性能。为促进改性橡胶木在结构工程中的应用,对其进行力学性能试验,研究其在不同加载条件下的破坏模式、材料性能、强度和刚度,并与市面上常见的天然木材和胶合木材的试验结... 详细信息

经过物理和高压化学处理后,改性橡胶木具有良好的防火和耐腐蚀性能。为促进改性橡胶木在结构工程中的应用,对其进行力学性能试验,研究其在不同加载条件下的破坏模式、材料性能、强度和刚度,并与市面上常见的天然木材和胶合木材的试验结果进行对比。试验结果表明,改性橡胶木具有良好的力学性能,可与天然木材相媲美,为改性橡胶木在木结构工程中的应用提供基础依据。

关键词：改性木橡胶木力学性能破坏模式木结构