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Hemoglobin loss method calculates blood loss during pancreaticoduodenectomy and predicts bleeding-related risk factors

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World Journal of Gastrointestinal Surgery 2024年第2期16卷 419-428页

作者： Chao Yu Yi-Min Lin guo-zhe xian Department of Hepatobiliary Surgery Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinan 250021Shandong ProvinceChina

BACKGROUND The common clinical method to evaluate blood loss during pancreaticoduoden-ectomy(PD)is visual inspection,but most scholars believe that this method is extremely subjective and ***,there is no accurate,objective me-thod to evaluate the amount of blood loss in PD *** retrospectively analyzed the clinical data of 341 patients who underwent PD in Shandong Provincial Hospital from March 2017 to February *** to different surgical methods,they were divided into an open PD(OPD)group and a laparoscopic PD(LPD)*** differences and correlations between the in-traoperative estimation of blood loss(IEBL)obtained by visual inspection and the intraoperative calculation of blood loss(ICBL)obtained using the Hb loss method were ***,IEBL and perioperative calculation of blood loss(PCBL)were compared between the two groups,and single-factor regression analysis was *** There was no statistically significant difference in the preoperative general patient information between the two groups(P>0.05).PD had an ICBL of 743.2(393.0,1173.1)mL and an IEBL of 100.0(50.0,300.0)mL(P200μmol/L(95%CI:7.09-644.26;P=0.045)were independent risk factors for *** ICBLs of the LPD group and OPD group were 767.7(435.4,1249.0)mL and 663.8(347.7,1138.2)mL,respectively(P>0.05).The IEBL of the LPD group 200.0(50.0,200.0)mL was slightly greater than that of the OPD group 100.0(50.0,300.0)mL(P>0.05).PCBL was greater in the LPD group than the OPD group[1061.6(612.3,1632.3)mL vs 806.1(375.9,1347.6)mL](P<0.05).CONCLUSION The ICBL in patients who underwent PD was greater than

关键词： Pancreaticoduodenectomy Hemoglobin loss Calculated blood loss Estimated blood loss

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Roles of sphincter of Oddi motility and serum vasoactive intestinal peptide,gastrin and cholecystokinin octapeptide

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World Journal of Gastroenterology 2014年第16期20卷 4730-4736页

作者： zhen-Hai Zhang Cheng-Kun Qin Shuo-Dong Wu Jian Xu xian-Ping Cui Zhi-Yi Wang guo-zhe xian Department of Hepatobiliary Surgery Shandong Provincial Hospital Affiliated to Shangdong University Departments of Minimally Invasive Surgery and the Second General Surgery Shengjing Hospital of China Medical University

AIM: To investigate roles of sphincter of Oddi (SO) motility played in pigment gallbladder stone formation in model of guinea pigs.

关键词： Pigment gallstone Sphincter of Oddi Manometry Myoelectric activity Guinea pig Vasoactive intestinal peptide Gastrin Cholecystokinin octapeptide

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Severe acute cholangitis after endoscopic sphincterotomy induced by barium examination:A case report

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World Journal of Gastroenterology 2012年第39期18卷 5658-5660页

作者： zhen-Hai Zhang Ya-Guang Wu Cheng-Kun Qin Zhong-Xue Su Jian Xu guo-zhe xian Shuo-Dong Wu Department of Hepatobiliary Surgery Shandong Provincial Hospital Affiliated to Shangdong University Jinan 250021 Shandong Province China the Sec- ond Department of General Surgery the Second Affiliated Hos- pital of China Medical University Shenyang 110004 Liaoning Province China

Endoscopic sphincterotomy (EST) is considered as a possible etiological factor for severe cholangitis. We herein report a case of severe cholangitis after endo-scopic sphincterotomy induced by barium examination. An adult male patient presented with epigastric pain was diagnosed as having choledocholithiasis by ultra-sonography. EST was performed and the stone was completely cleaned. Barium examination was done 3 d after EST and severe cholangitis appeared 4 h later. The patient was recovered after treated with tienam for 4 d. Barium examination may induce severe cholangitis in patients after EST, although rare, barium examination should be chosen cautiously. Cautions should be also used when EST is performed in patients younger than 50 years to avoid the damage to the sphincter of Oddi.

关键词： Endoscopic sphincterotomy Severe cholan-gitis Barium examination Sphincter of Oddi

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Effects of sphincter of Oddi motility on the formation of cholesterol gallstones

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World Journal of Gastroenterology 2016年第24期22卷 5540-5547页

作者： Zhong-Hou Rong Hong-Yuan Chen Xin-Xing Wang Zhi-Yi Wang guo-zhe xian Bang-zhen Ma Cheng-Kun Qin zhen-Hai Zhang Department of Hepatobiliary Surgery Provincial Hospital Affiliated to Shangdong University

AIM: To investigate the mechanisms and effects of sphincter of Oddi(SO) motility on cholesterol gallbladder stone formation in guinea ***: Thirty-four adult male Hartley guinea pigs were divided randomly into two groups, the control group(n = 10) and the cholesterol gallstone group(n = 24), which was sequentially divided into four subgroups with six guinea pigs each according to time of sacrifice. The guinea pigs in the cholesterol gallstone group were fed a cholesterol lithogenic diet and sacrificed after 3, 6, 9, and 12 wk. SO manometry and recording of myoelectric activity were obtained by a multifunctional physiograph at each stage. Cholecystokinin-A receptor(CCKAR) expression levels in SO smooth muscle were detected by quantitative real-time PCR(q RT-PCR) and serum vasoactive intestinal peptide(VIP), gastrin, and cholecystokinin octapeptide(CCK-8) were detected by enzyme-linked immunosorbent assay at each stage in the process of cholesterol gallstone ***: The gallstone formation rate was 0%, 0%, 16.7%, and 83.3% in the 3, 6, 9, and 12 wk groups, respectively. The frequency of myoelectric activity in the 9 wk group, the amplitude of myoelectric activity in the 9 and 12 wk groups, and the amplitude and the frequency of SO in the 9 wk group were all significantly decreased compared to the control group. The SO basal pressure and common bile duct pressure increased markedly in the 12 wk group, and the CCKAR expression levels increased in the 6 and 12 wk groups compared to the control group. Serum VIP was elevated significantly in the 9 and 12 wk groups and gastrin decreased significantly in the 3 and 9 wk groups. There was no difference in serum CCK-8 between the ***: A cholesterol gallstone-causing diet can induce SO dysfunction. The increasing tension of the SO along with its decreasing activity may play an important role in cholesterol gallstone formation. Expression changes of CCKAR in SO smooth muscle and serum VIP and CCK-

关键词： Cholesterol gallstone Sphincter of Oddi Manometry Myoelectric activity Cholecystokinin-A receptor

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Rock fracture mechanism of buffer blasting with cushion layer at the borehole bottom

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 325-334页

作者： Xinguang Zhu Chenxi Ding zhe Sui Hong Su Xu guo School of Civil and Resources Engineering University of Science and Technology BeijingBeijing 100083China Key Laboratory for Mechanics in Fluid Solid Coupling Systems Institute of MechanicsChinese Academy of SciencesBeijing 100190China School of Mechanics and Civil Engineering China University of Mining and Technology(Beijing)Beijing 100083China School of Chemical and Blasting Engineering Anhui University of Science and TechnologyHuainan 232001China

This study primarily investigates the rock fracture mechanism of bottom cushion layer blasting and explores the effects of the bottom cushion layer on rock *** involves analyses of the evolution patterns of blasting stress,characteristics of crack distribution,and rock fracture features in the ***,blasting model experiments were carried out using the dynamic caustics principle to investigate the influence of bottom cushion layers and initiation methods on the integrity of the bottom rock *** experimental results indicate that the combined use of bottom cushion layers and inverse initiation effectively protects the integrity of the bottom rock ***,the process of stress wave propagation and dynamic crack propagation in rocks was simulated using the continuum-discontinuum element method(CDEM)and the Landau explosion source model,with varying thicknesses of bottom cushion *** numerical simulation results indicate that with increasing cushion thickness,the absorption of energy generated by the explosion becomes more pronounced,resulting in fewer cracks in the bottom rock *** illustrates the positive role of the cushion layer in protecting the integrity of the bottom rock mass.

关键词： bottom cushion layer blasting crack propagation continuum-discontinuum element method dynamic stress intensity factor

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用于去除废水中重金属的核桃壳吸附剂制备方法研究进展

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应用化工 2021年第11期50卷 3140-3145页

作者：郭先哲刘卓状陈武长江大学化学与环境工程学院湖北荆州434023 长江大学中石油HSE重点实验室湖北荆州434023

针对核桃壳(WNS)转化为高效吸附剂的资源化利用问题,对近年来国内外以核桃壳为原料制备吸附剂的相关研究进行了归纳和总结。结果表明,从核桃壳转化成核桃壳吸附剂主要方法有:预处理后直接作吸附剂,改性后作吸附剂,制备成活性炭吸附剂。... 详细信息

针对核桃壳(WNS)转化为高效吸附剂的资源化利用问题,对近年来国内外以核桃壳为原料制备吸附剂的相关研究进行了归纳和总结。结果表明,从核桃壳转化成核桃壳吸附剂主要方法有:预处理后直接作吸附剂,改性后作吸附剂,制备成活性炭吸附剂。其中无机酸性或碱性预处理比有机溶剂更具环保优势;对核桃壳的酰基化、氨基化、接枝共聚、负载纳米零价铁、非热等离子体作用等改性方法,都可以提高吸附剂对重金属离子的吸附能力,使改性核桃壳(MWNS)的吸附性能高于传统吸附剂,但相比之下,酰基化改性、非热等离子体改性更具快速、有效、环保等优势。此外将WNS制备为活性炭也是一种有效的改性方法,制备的活性炭吸附效果相当甚至优于传统的活性炭吸附剂,值得进一步研究。建议今后对核桃壳绿色环保、低成本制备吸附剂的工艺、核桃壳改性方法工业规模放大试验及对实际废水中金属离子的选择性及竞争性吸附问题开展研究,以实现核桃壳生物质废料最高效的资源化利用。

关键词：核桃壳改性吸附剂吸附重金属离子

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