Analyzing the surface passivity effect of germanium oxynitride:a comprehensive approach through first principles simulation and interface state density

High-purity germanium(HPGe)detectors,which are used for direct dark matter detection,have the advantages of a low threshold and excellent energy resolution.The surface passivation of HPGe has become crucial for achieving an extremely low energy threshold.In this study,first-principles simulations,passivation film preparation,and metal oxide semiconductor(MOS)capacitor characterization were combined to study surface passivation.Theoretical calculations of the energy band structure of the -H,-OH,and -NH_(2) passivation groups on the surface of Ge were performed,and the interface state density and potential with five different passivation groups with N/O atomic ratios were accurately analyzed to obtain a stable surface state.Based on the theoretical calculation results,the surface passivation layers of the Ge_(2)ON_(2) film were prepared via magnetron sputtering in accordance with the optimum atomic ratio structure.The microstructure,C-V,and I-V electrical properties of the layers,and the passivation effect of the Al/Ge_(2)ON_(2)/Ge MOS were characterized to test the interface state density.The mean interface state density obtained by the Terman method was 8.4×10^(11) cm^(-2) eV^(-1).The processing of germanium oxynitrogen passivation films is expected to be used in direct dark matter detection of the HPGe detector surface passivation technology to reduce the detector leakage currents.

负压封闭引流联合保留臀上动脉浅支的臀大肌肌皮瓣修复骶尾部IV期压疮的临床效果

目的:探讨负压封闭引流联合保留臀上动脉浅支的臀大肌旋转肌皮瓣修复骶尾部压疮的临床效果。方法:选取2019年6月—2023年10月温州医科大学附属第一医院收治的12例骶尾部压疮患者,其中男7例,女5例,年龄31~86岁。入院后I期予行负压封闭引流术,4~7 d后行保留臀上动脉浅支的臀大肌肌皮瓣修复创面。观察术后皮瓣成活情况、并发症发生情况,随访观察皮瓣外形、压疮复发情况。结果:本组12例患者,均因长期卧床致骶尾部受压出现IV期压疮,压疮病因:截瘫患者5例,各种原因所致的长期卧床患者7例,其中脑梗死后遗症患者2例,帕金森病患者3例,老年痴呆症患者1例,股骨颈骨折患者1例。病程2周至8年,清创后创面面积为5.0 cm×5.0 cm~10.0 cm×12.0 cm。12例患者术后皮瓣均完全成活,无皮瓣坏死、静脉淤血、创缘开裂等发生。术后随访2~6个月,皮瓣外形较佳、骶尾部软组织饱满、压疮无复发。结论:保留臀上动脉浅支的臀大肌旋转肌皮瓣血运可靠,设计、操作简单,皮瓣可修复面积大,切取不需要离断臀上动脉浅支,供瓣区一般能直接缝合,修复骶尾部压疮效果较佳。

75 GHz germanium waveguide photodetector with 64 Gbps data rates utilizing an inductive-gain-peaking technique

High-performance germanium(Ge)waveguide photodetectors are designed and fabricated utilizing the inductivegain-peaking technique.With the appropriate integrated inductors,the 3-dB bandwidth of photodetectors is significantly improved owing to the inductive-gain-peaking effect without any compromises to the dark current and optical responsivity.Measured 3-dB bandwidth up to 75 GHz is realized and clear open eye diagrams at 64 Gbps are observed.In this work,the relationship between the frequency response and large signal transmission characteristics on the integrated inductors of Ge waveguide photodetectors is investigated,which indicates the high-speed performance of photodetectors using the inductive-gainpeaking technique.

IV型车载储氢瓶聚合物内衬材料的氢气渗透性分析

详细总结论述了气体在高分子聚合物材料中的渗透机理,并简要介绍了有关IV型储氢瓶聚合物内衬氢气渗透性的测试方法以及国内外测试标准。基于此,进一步探讨了测试温度、测试压力以及聚合物材料性能对IV型储氢瓶内衬材料氢气渗透性的影响,并展望了未来的发展方向。

基于MIMIC-IV构建及评估脓毒症患者近期和远期死亡风险预测模型

目的:鉴于脓毒症的高发病率和高病死率,早期识别高风险患者并及时干预至关重要,而现有死亡风险预测模型在操作、适用性和预测长期预后等方面均存在不足。本研究旨在探讨脓毒症患者死亡的危险因素,构建近期和远期死亡风险预测模型。方法:从美国重症监护医学信息数据库IV(Medical Information Mart for Intensive Care-IV,MIMIC-IV)中选取符合脓毒症3.0诊断标准的人群,按7?3的比例随机分为建模组和验证组,分析患者的基线资料。采用单因素Cox回归分析和全子集回归确定脓毒症患者死亡的危险因素并筛选出构建预测模型的变量。分别用时间依赖性曲线下面积(area under the curve,AUC)、校准曲线和决策曲线评估模型的区分度、校准度和临床实用性。结果:共纳入14240例脓毒症患者,28 d和1年病死率分别为21.45%(3054例)和36.50%(5198例)。高龄、女性、高感染相关器官衰竭评分(sepsis-related organ failure assessment,SOFA)、高简明急性生理学评分(simplified acute physiology score II,SAPS II)、心率快、呼吸频率快、脓毒症休克、充血性心力衰竭、慢性阻塞性肺疾病、肝脏疾病、肾脏疾病、糖尿病、恶性肿瘤、高白细胞计数(white blood cell count,WBC)、长凝血酶原时间(prothrombin time,PT)、高血肌酐(serum creatinine,SCr)水平均为脓毒症死亡的危险因素(均P<0.05)。由PT、呼吸频率、体温、合并恶性肿瘤、合并肝脏疾病、脓毒症休克、SAPS II及年龄8个变量构建的模型,其28 d和1年生存的AUC分别为0.717(95%CI 0.710~0.724)和0.716(95%CI 0.707~0.725)。校准曲线和决策曲线表明该模型具有良好的校准度及较好的临床应用价值。结论:基于MIMIC-IV建立的脓毒症患者近期和远期死亡风险预测模型有较好的识别能力,对患者预后风险评估及干预治疗具有一定的临床参考意义。

基于IVE模型重型柴油车尾气排放时空特征分析

该研究基于国际机动车排放(IVE)模型结合GPS轨迹点密度和道路长度的方法,建立了昆明市主城区重型柴油车大气污染物和温室气体的高分辨率网格化排放清单,量化了重型柴油车的行驶特征,确定了车辆的VSP bin分布特征、环境变量和车辆技术特征,改进了污染物空间分配方法。结果表明,昆明市主城区的CO_(2)、NOx和PM日排放总量分别为373.481、2.43和0.193 t。驾驶模式工况主要向VSP bin12趋近,其后逐渐降低;污染物的排放因子随车速变化而有规律的变化。从时间分布来看,污染物的小时排放模式均呈现出双峰趋势,表明交通拥堵和通勤高峰时段是污染物排放的主要时段;将轨迹点密度和网格道路长度作为污染物空间分配的权重因子,能够更真实地反映污染物排放强度的分布模式。

基于STM32F373的光伏组件IV特性测试系统

为准确方便测量光伏组件的IV特性曲线,设计一款基于STM32F373的光伏组件IV特性测试系统,可测量开路电压、短路电流、IV曲线、PV曲线等。该系统由电流控制单元、信号采集单元、软件处理单元、通信单元、上位机显示单元等组成,采用电子负载电路,以STM32F373单片机DAC输出来调节恒流的电流,同时采集光伏电池的输出电压,对采集到的数据进行卡尔曼滤波和曲线拟合,将电压、电流、功率生成IV、PV曲线显示在TFT彩屏上。该系统还可将数据远程传输到PC端进行数据分析与曲线观察。结果表明,该系统采集曲线准确且速度快,性能良好,采集一次IV曲线的时间仅需1 s,测量的电压电流误差小于1%。该系统体积小便于携带且内部带有锂电池,可充电,可在室外使用。

珍珠蚌肉二肽基肽酶-IV抑制肽的制备与分离

目的:以珍珠蚌肉为原料制备对二肽基肽酶(dipeptidyl peptidase,DPP)-IV具有抑制作用的生物活性肽。方法:利用两步酶解法并优化珍珠蚌肉酶解条件,筛选体外DPP-IV抑制活性较高组分进行超滤膜浓缩,Superdex^(TM) peptide 10/300 GL凝胶柱层析与反相高效液相色谱(reverse phase-high performance liquid chromatography,RP-HPLC)技术分离纯化出酶解液中的DPP-IV抑制肽,最终通过液相色谱-串联质谱鉴定其氨基酸序列。结果:中性蛋白酶与碱性蛋白酶对珍珠蚌肉均有良好降解效果,经3 kDa超滤膜浓缩后,酶解产物的DPP-IV抑制率可达67.4%。通过凝胶过滤柱和RP-HPLC进一步分离纯化出6个活性较高的肽段,序列分别为FNAPAM、FIPNY、IYNPPTPF、LAMPYP、FFVVMP和LAGMP。进一步,以分子对接的方式分析6个肽段与DPP-IV的相互作用关系。结论:本研究利用珍珠蚌肉制备DPP-IV抑制肽,可为以水产加工副产物为原料制备功能性食品提供理论参考。

参苓白术散联合桂枝茯苓丸、达格列净治疗2型糖尿病肾病IV期的蛋白尿的随机对照研究

目的:观察参苓白术散联合桂枝茯苓丸、达格列净治疗2型糖尿病肾病IV期患者蛋白尿的临床疗效。方法:收集于2021年9月~2022年9月潍坊市益都中心医院就诊的诊断为2型糖尿病肾病IV期患者60例。采用随机、对照的临床研究设计分为治疗组和对照组,观察患者症状评分、实验室指标、疾病疗效等指标变化。结果:本研究最终纳入统计分析的治疗组29例、对照组28例。治疗后,治疗组的中医证候、蛋白尿、肾小球滤过率(eGFR)、糖化血红蛋白(HbA1c)、D-二聚体、尿NGAL、低密度脂蛋白疗效优于对照组(P 0.05)。对照组经治后,尿NGAL较治疗前明显下降(P < 0.05),其余指标与治疗前均无差异(P < 0.05)。两组均未见不良反应。结论:参苓白术散联合桂枝茯苓丸、达格列净治疗可减轻DKD IV期患者临床症状,降低蛋白尿、NGAL、糖化血红蛋白、D-二聚体、低密度脂蛋白,保护肾小管及肾小球、改善机体高凝状态及血糖,延缓肾功能下降,提高临床疗效。

18例不可切除IV期胸腺鳞癌的临床特征及预后分析

目的:探讨不可切除IV期胸腺鳞癌的临床特征、治疗方式和预后。方法:收集2018年1月1日至2022年12月31日期间就诊于青岛大学附属医院的18例不可切除IV期胸腺鳞癌患者的临床资料和治疗资料,并随访至2024年2月29日。结果:18例患者中男性12例,女性6例,中位发病年龄60岁;TNM分期IVA期9例,IVB期9例;单纯化疗8例,单纯放疗1例,序贯放化疗4例,同步放化疗2例,化疗联合免疫疗法3例。18例患者总进展率66.7%,中位PFS 27 (19~36)个月。IVA期和IVB期进展率分别为33.3%和100.0% (p = 0.009),中位PFS分别为50 (21~79)和21 (5~37)个月(p = 0.008)。单纯化疗,放化疗和化疗联合免疫疗法进展率分别为75.0%,66.7%,和33.3% (p = 0.793),中位PFS分别为24 (16~32),50 (27~73),和10 (4~16)个月(p = 0.057)。结论:不可切除IV期胸腺鳞癌主要采用以化疗为主的综合治疗,总体预后差,IVA期较IVB期好,化疗联合放疗或免疫疗法较单纯化疗好,建议对非广泛转移阶段的患者行精准治疗。

Impact of strain relaxation on the growth rate of heteroepitaxial germanium tin binary alloy

The growth of high-quality germanium tin(Ge_(1–y)Sn_(y))binary alloys on a Si substrate using chemical vapor deposition(CVD)techniques holds immense potential for advancing electronics and optoelectronics applications,including the development of efficient and low-cost mid-infrared detectors and light sources.However,achieving precise control over the Sn concentration and strain relaxation of the Ge_(1–y)Sn_(y)epilayer,which directly influence its optical and electrical properties,remain a significant challenge.In this research,the effect of strain relaxation on the growth rate of Ge_(1–y)Sn_(y)epilayers,with Sn concentration>11at.%,is investigated.It is successfully demonstrated that the growth rate slows down by~55%due to strain relaxation after passing its critical thickness,which suggests a reduction in the incorporation of Ge into Ge_(1–y)Sn_(y)growing layers.Despite the increase in Sn concentration as a result of the decrease in the growth rate,it has been found that the Sn incorporation rate into Ge_(1–y)Sn_(y)growing layers has also decreased due to strain relaxation.Such valuable insights could offer a foundation for the development of innovative growth techniques aimed at achieving high-quality Ge_(1–y)Sn_(y)epilayers with tuned Sn concentration and strain relaxation.

Artificial neural network-based method for discriminating Compton scattering events in high-purity germaniumγ-ray spectrometer

To detect radioactive substances with low activity levels,an anticoincidence detector and a high-purity germanium(HPGe)detector are typically used simultaneously to suppress Compton scattering background,thereby resulting in an extremely low detection limit and improving the measurement accuracy.However,the complex and expensive hardware required does not facilitate the application or promotion of this method.Thus,a method is proposed in this study to discriminate the digital waveform of pulse signals output using an HPGe detector,whereby Compton scattering background is suppressed and a low minimum detectable activity(MDA)is achieved without using an expensive and complex anticoincidence detector and device.The electric-field-strength and energy-deposition distributions of the detector are simulated to determine the relationship between pulse shape and energy-deposition location,as well as the characteristics of energy-deposition distributions for fulland partial-energy deposition events.This relationship is used to develop a pulse-shape-discrimination algorithm based on an artificial neural network for pulse-feature identification.To accurately determine the relationship between the deposited energy of gamma(γ)rays in the detector and the deposition location,we extract four shape parameters from the pulse signals output by the detector.Machine learning is used to input the four shape parameters into the detector.Subsequently,the pulse signals are identified and classified to discriminate between partial-and full-energy deposition events.Some partial-energy deposition events are removed to suppress Compton scattering.The proposed method effectively decreases the MDA of an HPGeγ-energy dispersive spectrometer.Test results show that the Compton suppression factors for energy spectra obtained from measurements on ^(152)Eu,^(137)Cs,and ^(60)Co radioactive sources are 1.13(344 keV),1.11(662 keV),and 1.08(1332 keV),respectively,and that the corresponding MDAs are 1.4%,5.3%,and 21.6%lower,respectively.

Anti-inflammatory and DNA Repair Effects of Astragaloside IV on PC12 Cells Damaged by Lipopolysaccharide

Objective This study aimed to establish a neural cell injury model in vitro by stimulating PC12 cells with lipopolysaccharide(LPS)and to examine the effects of astragaloside IV on key targets using high-throughput sequence technology and bioinformatics analyses.Methods PC12 cells in the logarithmic growth phase were treated with LPS at final concentrations of 0.25,0.5,0.75,1,and 1.25 mg/mL for 24 h.Cell morphology was evaluated,and cell survival rates were calculated.A neurocyte inflammatory model was established with LPS treatment,which reached a 50%cell survival rate.PC12 cells were treated with 0.01,0.1,1,10,or 100µmol/L astragaloside IV for 24 h.The concentration of astragaloside IV that did not affect the cell survival rate was selected as the treatment group for subsequent experiments.NOS activity was detected by colorimetry;the expression levels of ERCC2,XRCC4,XRCC2,TNF-α,IL-1β,TLR4,NOS and COX-2 mRNA and protein were detected by RT-qPCR and Western blotting.The differentially expressed genes(DEGs)between the groups were screened using a second-generation sequence(fold change>2,P<0.05)with the following KEGG enrichment analysis,RT-qPCR and Western blotting were used to detect the mRNA and protein expression of DEGs related to the IL-17 pathway in different groups of PC12 cells.Results The viability of PC12 cells was not altered by treatment with 0.01,0.1,or 1µmol/L astragaloside IV for 24 h(P>0.05).However,after treatment with 0.5,0.75,1,or 1.25 mg/mL LPS for 24 h,the viability steadily decreased(P<0.01).The mRNA and protein expression levels of ERCC2,XRCC4,XRCC2,TNF-α,IL-1β,TLR4,NOS,and COX-2 were significantly increased after PC12 cells were treated with 1 mg/mL LPS for 24 h(P<0.01);however,these changes were reversed when PC12 cells were pretreated with 0.01,0.1,or 1µmol/L astragaloside IV in PC12 cells and then treated with 1 mg/mL LPS for 24 h(P<0.05).Second-generation sequencing revealed that 1026 genes were upregulated,while 1287 genes were downregulated.The DEGs were associated with autophagy,TNF-α,interleukin-17,MAPK,P53,Toll-like receptor,and NOD-like receptor signaling pathways.Furthermore,PC12 cells treated with a 1 mg/mL LPS for 24 h exhibited increased mRNA and protein expression of CCL2,CCL11,CCL7,MMP3,and MMP10,which are associated with the IL-17 pathway.RT-qPCR and Western blotting analyses confirmed that the DEGs listed above corresponded to the sequence assay results.Conclusion LPS can damage PC12 cells and cause inflammatory reactions in nerve cells and DNA damage.astragaloside IV plays an anti-inflammatory and DNA damage protective role and inhibits the IL-17 signaling pathway to exert a neuroprotective effect in vitro.

基于IOE-IV耦合模型的地质灾害易发性评价——以陕西省城固县为例

地质灾害易发性评价是地质灾害排查、风险性调查评价及预警预报工作的基础,其成果可以作为建设工程是否进行地质灾害危险性评估工作的依据。因此,进行区域地质灾害易发性评价研究显得尤为重要。本文以城固县为研究区,以气象水文类、地形地貌类、基础地质类、植被覆盖类共4类12种诱发因素为评价指标。分别采用K-means算法、FCM算法、层次聚类算法、DBSCAN密度算法对区内126处地质灾害样本数据进行分析提纯,剔除13处样本噪声点。利用提纯后的113处样本点建立IOE-IV耦合模型,并对城固县地质灾害易发性进行分区评价,评价结果表明:(1)地质灾害极高—高易发区、中易发区、极低—低易发区的占比分别为92.04%、4.42%与3.54%,预测结果较合理准确;(2)地质灾害发育主要受高程、水系的控制,在高程412~500 m、距水系小于500 m范围内主要为极高—高易发区,地质灾害呈线状发育。研究成果可以为地质灾害易发性评价样本优化、模型选择提供一定的理论依据。

Sensitivity investigation of 100-MeV proton irradiation to SiGe HBT single event effect

The single event effect(SEE) sensitivity of silicon–germanium heterojunction bipolar transistor(Si Ge HBT) irradiated by 100-Me V proton is investigated. The simulation results indicate that the most sensitive position of the Si Ge HBT device is the emitter center, where the protons pass through the larger collector-substrate(CS) junction. Furthermore, in this work the experimental studies are also carried out by using 100-Me V proton. In order to consider the influence of temperature on SEE, both simulation and experiment are conducted at a temperature of 93 K. At a cryogenic temperature, the carrier mobility increases, which leads to higher transient current peaks, but the duration of the current decreases significantly.Notably, at the same proton flux, there is only one single event transient(SET) that occurs at 93 K. Thus, the radiation hard ability of the device increases at cryogenic temperatures. The simulation results are found to be qualitatively consistent with the experimental results of 100-Me V protons. To further evaluate the tolerance of the device, the influence of proton on Si Ge HBT after gamma-ray(^(60)Coγ) irradiation is investigated. As a result, as the cumulative dose increases, the introduction of traps results in a significant reduction in both the peak value and duration of the transient currents.

智能IV诊断在分析光伏低效子阵中的应用

由于光伏子阵的非线性行为和其对运行环境的依赖性,传统的保护装置可能无法诊断光伏系统低效子阵问题。为此,业内进行了大量研究来克服这一问题的出现。然而,大多数方法不仅耗时较久,还存在较大的电量损失。同时,由于需要大量数据集,还存在数据过度拟合问题,导致准确率有所欠缺。在本研究中,通过应用华为AI BOOST智能IV诊断3.0,无论是实验评估还是实际应用,相比传统的诊断方法,均取得了较为明显的效果。

基于MIMIC-IV数据库中发生血流感染的危重疾病患者相关数据构建革兰阴性菌血流感染风险预测模型

目的 基于重症医学信息数据库(MIMIC-IV)中发生血流感染的危重疾病患者相关数据构建预测危重疾病患者革兰阴性菌血流感染发生风险预测模型,以期为预测危重疾病患者发生革兰阴性菌血流感染风险提供新的方法。方法 收集MIMIC-IV中2 503例发生血流感染的危重疾病患者的临床资料及实验室检查指标[血常规(红细胞、白细胞、血小板等)、血生化(钾离子、钙离子、氯离子、碳酸氢根、阴离子间隙和尿素氮等)、凝血功能指标(INR、PT、PTT)]数据。将所有危重疾病患者以7∶3的比例分为训练集(1 752例)和验证集(751例)。在训练集中使用LASSO回归初步筛选出危重疾病患者发生革兰阴性菌血流感染的影响因素,并将筛选出来的影响因素行多因素Logistic回归分析,建立危重疾病患者革兰阴性菌血流感染风险预测模型(列线图模型)。在训练集和验证集中通过受试者工作特征曲线(ROC)、校准曲线和决策曲线(DCA)分别对列线图模型的区分度、一致性、临床适用性进行评价。结果 年龄、患有肿瘤、肝胆系统疾病、嗜酒史、钾离子、钙离子、碳酸氢根、阴离子间隙和尿素氮为危重疾病患者发生革兰阴性菌血流感染风险的影响因素,基于以上影响因素采用Logistic回归分析,构建列线图模型。训练集和验证集中,列线图模型预测危重疾病患者发生革兰阴性菌血流感染的ROC下面积分别为0.711(95%CI 0.667~0.756)、0.705(95%CI 0.678~0.733);校准曲线表明列线图模型预测革兰阴性菌血流感染发生的结果与实际结果之间具有良好的一致性(P=0.764);DCA显示列线图模型具有良好的临床适用性。结论 成功构建了预测危重疾病患者发生革兰阴性菌血流感染风险的列线图模型,该模型预测性能较好,能有效识别血流感染高风险危重疾病患者。

基于UPLC-Q-Exactive MS技术的宣白承气汤加味治疗流感病毒与肺炎链球菌共感染小鼠肺炎代谢组学研究

目的基于超高效液相-四级杆-轨道阱高分辨质谱联用(Ultrahigh-performance liquid chromatography-quadrupole exactive mass spectrometry, UPLC-Q-Exactive MS)技术探究宣白承气汤加味对流感病毒/肺炎链球菌(Influenza virus/Streptococcus pneumoniae,Ⅳ/Spn)共感染小鼠肺脏组织中内源性代谢产物的影响,旨在阐明宣白承气汤加味治疗共感染小鼠肺炎的作用机制。方法将36只小鼠随机分为3组,即正常组、模型组和宣白承气汤加味组,每组12只。除正常组外,其余两组小鼠在造模成功6 h后开始灌胃给药,1次/d,连续1周。给药结束后,取小鼠肺脏组织,利用UPLC-Q-Exactive MS技术进行非靶向代谢组学研究,结合主成分分析(Principal component analysis, PCA)和正交偏最小二乘判别分析法(Orthogonal partial least-squares discrimination analysis, OPLS-DA)分析并筛选潜在的代谢产物,并基于R语言对已鉴定的差异性代谢产物进行通路分析。结果在正负离子模式下,共筛选和鉴定出36个潜在的代谢产物,与正常组相比,模型组有27个代谢产物含量显著上升,有9个代谢产物含量显著下降。宣白承气汤加味干预后,36个代谢产物的含量均呈现明显的回调趋势,主要影响亚油酸代谢、烟酸和烟酰胺代谢、核黄素代谢等通路。结论宣白承气汤加味对Ⅳ/Spn共感染小鼠肺炎的治疗作用可能与其调节体内代谢产物失调,恢复体内正常生命活动有关。

自动痔套扎术结合小“v”切口在治疗IV期混合痔中的效果观察

观察自动痔套扎术结合小“V”切口在治疗IV期混合痔中的效果,为临床治疗提供依据。方法 从在我院进行混合痔疮疾病治疗的病人中挑选六十人当作本次研究的对象,并且将所有的病人按照平均随机分组的原则划分为两个小组,并且为每个小组的病人提供不同的治疗和护理服务,并且对两组病人的的临床治疗效果以及术后并发症情况进行对比分析。结果 观察组内病人的疾病治疗效果相对于对照组内病人的情况较好,并且术后综合评分相对于对照组病人的表现更为优秀。结论 自动痔套扎术结合小“V”切口治疗IV期混合痔疾病具有良好的实践作用,能够从根本上提高疾病治疗的效果,控制手术过程中的出血量,预防各类并发症情况的发生,适合在临床中加以大范围运用。

血管弯钳闭合撬拨术与传统手术治疗儿童GartlandIV型肱骨髁上骨折的比较研究

探讨分析在进行儿童Gartland IV型肱骨髁上骨折患者的临床治疗时,选择血管弯钳闭合撬拨术进行治疗的效果分析及临床可应用价值。方法 抽取本院中2022年6月至2023年8月间接收的80例儿童Gartland IV型肱骨髁上骨折患者当作探究对象,按照医治方法对其分组,分为常规手术组、血管弯钳闭合撬拨术组,单组中各包含40例患者。在治疗完成后,对两组患者的治疗优良率进行评价,分析组间差异。结果 常规手术组优良率37(92.50%),血管弯钳闭合撬拨术组优良率39(97.50%),两组数据对比无明显差异(P>0.05)。经临床研究显示,常规手术组儿童的不良反应发生率相较于血管弯钳闭合撬拨术组来说明显更低,数据经分析差异显著(P<0.05)。结论 儿童Gartland IV型肱骨髁上骨折的病情状况相对来说较为复杂,同时由于儿童的骨骼发育还处于较为稚嫩的阶段,在进行治疗时常规手术产生的风险较大,容易引发儿童。治疗过程中出现各种不良反应,研究人员通过本次实验,证实了针对儿童进行实际治疗时选择血管弯钳闭合撬拨术能够获得相对较为良好的治疗效果,具有积极的可推广价值职责,进行进一步的应用。