Objective To explore the clinical efficacy of different anticoagulation regimens during catheter-directed thrombectomy（CDT） in deep venous thrombosis（DVT） of the lower extremities. Methods A total of 35 DVT patients admitted to the Department of Vascular Surgery of the First Affiliated Hospital of Bengbu Medical College Hospital from March 2021 to February 2022 were selected. They were randomly divided into a low molecular weight heparin + small dose unfractionated heparin pulse group（observation group, 18 cases） and a low molecular weight heparin application group merely（control group, 17 cases） by a random number table method. Thrombolysis effect was assessed by dynamic examination of plasma D-dimer. After treatment completed, the curative effect was analyzed by measuring the difference in the circumference of the lower limbs before and after the operation and the venous patency score. Results The plasma D-dimer in the observation group and control group increased during the thrombolysis process（day 3） were（78.26±11.57） and（66.06±12.31） mg/L（t=3.020, P=0.005）. The circumference of 15 cm below the knee joint were（1.43±0.34） and（2.48±0.63） cm（t=6.185, P＜0.001）; the lower extremity venous patency score was 5.34±0.90 and 7.29±1.19（t=5.235, P＜0.001）; the dosage of urokinase were（302.22±20.45）×10~4 and（381.17±27.59）×10~4 units（t=9.656, P＜0.001）. The comparison of the above two groups of data was statistically significant. Conclusion The efficacy of low molecular weight heparin combined with small dose unfractionated heparin pulse anticoagulation of CDT in DVT is excellent and safe. It should be popularized and applied in clinical treatment of lower extremity DVT.

目的 探讨急性Stanford B型主动脉夹层患者入院时炎性指标及D-二聚体水平与术后1年内发生不良事件之间的关系.方法 回顾性分析2017年1月至2021年6月蚌埠医学院第一附属医院收治的51例急性Stanford B型主动脉夹层患者资料.收集患者的一般资料及实验室检查指标,根据术后不良事件发生情况分为不良事件组和非事件组,比较并分析影响患者术后1年内发生不良事件的危险因素.结果 13例患者术后1年内发生不良事件.不良事件组和非事件组临床资料比较发现,C反应蛋白(C-reactive protein,CRP)和D-二聚体的差异有统计学意义(CRP:P=0.037;D-二聚体:P=0.009).绘制受试者操作特征曲线发现,CRP的最佳截止值为4.845 mg/L,敏感性92.3％,特异性44.7％;D-二聚体的最佳截止值为1.980 mg/L,敏感性84.6％,特异性65.8％.Kaplan-Meier曲线发现,CRP和D-二聚体高值组患者术后1年内出现不良反应事件时间较早且例数也较多.多因素logistic回归分析发现,入院时患者CRP＞4.845 mg/L、D-二聚体＞1.980 mg/L是术后1年内发生不良事件的独立预测因子.结论 入院时CRP和D-二聚体水平与急性Stanford B型主动脉夹层患者术后1年内发生不良事件相关.CRP＞4.845 mg/L、D-二聚体＞1.980mg/L能更好预测术后1年内不良事件的发生.

Objective:To investigate the expression and clinical significance of Apolipoprotein B (ApoB), sex hormone binding globulin (SHBG) and tissue inhibitors of metalloproteinase 1 (TIMP-1) in serum of patients with primary inferior vena cava diaphragm type Budd-Chiari syndrome (BCS) in northern Anhui.Methods:Sixteen patients diagnosed with primary inferior vena cava septal BCS in northern Anhui were selected as the experimental group and eight healthy adults were selected as the control group. The contents of ApoB, SHBG and TIMP-1 in serum of the two groups were detected by enzyme-linked immunosorbent assay (ELISA). Receiver operating characteristic (ROC) curve was used to evaluate the diagnostic efficiency of differential protein in BCS. qPCR was used to detect the expression abundance of the three protein genes in human umbilical vein endothelial cells (HUVEC).Results:ELISA results showed that the expression levels of serum ApoB and SHBG were not statistically significant between the two groups (t=0.93, 1.12, P=0.36, 0.27), and the expression level of serum TIMP-1 in the experimental group was lower than that in the control group (t=2.31, P<0.05). ROC curve analysis showed that the area under curve (AUC) of TIMP-1 was 0.75. qPCR indicated that ApoB and SHBG were lowly expressed in HUVEC, while TIMP-1 expression was high.Conclusion:TIMP-1 may be correlated with primary septal BCS of inferior vena cava in northern Anhui, and can be used as a potential serum biomarker for further study.

胸腹主动脉瘤是一种复杂和危险性较高的血管外科疾病，其病变范围广、累及内脏多个分支动脉，并发症高，预后差，一直是治疗的难点。随着腔内修复技术的快速发展，胸腹主动脉瘤的腔内修复治疗以其创伤小、恢复快等优点，已成为一种主要和安全的治疗方式。本视频展现了一例49岁胸腹主动脉瘤男性患者，在3D打印技术辅助下，体外开窗施行腔内修复治疗的过程：术前对于主动脉病变的形态、分支动脉的位置等信息进行评估，运用CTA和DSA图像融合技术进行三维重建，根据测量数据和3D打印模型制定体外开窗方案，在融合图像指引下精确定位，输送和释放支架。手术重建了受累及的内脏动脉，保证靶器官的血液供应，达到了较好手术预期。

目的:分析下肢深静脉血栓(DVT)导管接触性溶栓术后患者生活质量的现状及影响因素.方法:分析2021-01～2022-06本院收治的55例下肢DVT患者的一般资料.患者行导管接触性溶栓治疗,评估出院时和术后3个月的生活质量水平(SF-36评分).根据患者术后SF-36评分,将患者分为高生活质量组(n=31)和低生活质量组(n=24).比较患者的一般资料、术后Villalta评分、术后纤维原蛋白水平.多因素logistic回归分析下肢DVT患者导管接触性溶栓术后生活质量的影响因素,经受试者工作特征曲线(ROC)评估模型诊断效能.结果:与出院时比较,患者术后3个月SF-36量表各维度评分和总分均较高(P＜0.05);单因素分析和多因素Logistic回归分析结果显示,合并髂静脉压迫综合征(P=0.009,OR=7.360)、术后纤维原蛋白水平(P=0.013,OR=7.348)、术后Villalta评分(P=0.005,OR=1.490)是下肢DVT患者导管接触性溶栓术后生活质量的独立影响因素.ROC曲线分析结果表明,上述三种指标联合检测的AUC值最高,为0.937,灵敏度、特异度分别为95.80％、83.33％.结论:下肢DVT患者导管接触性溶栓术后不同时间点的生活质量水平有所不同.其中合并髂静脉压迫综合征、术后纤维原蛋白水平、术后Villalta评分是影响下肢DVT患者导管接触性溶栓术后生活质量的独立影响因素.

目的:探讨人文素养培训对住院医师岗位胜任能力的影响.方法:将2019年1月至2020年1月期间在本院进行轮转并接受培训的70名住院医师作为研究对象.随机分为对照组(n=35)和试验组(n=35),分别给予常规培训和人文素养培训,并比较两组受试者的岗位胜任能力评分和满意度.结果:试验组住院医师各项岗位胜任能力评分、对培训方法及内容的满意度均显著高于对照组(P＜0.05).结论:人文素养能够提升住院医师的岗位胜任能力.

Objective:This study aimed to investigate the incidence of post-thrombotic syndrome (PTS) in patients with acute deep venous thrombosis of the lower extremity with iliac vein lesions treated by catheter-directed thrombolysis combined with stent implantation.Methods:A cross-sectional study was conducted. Clinical data of 61 patients with acute deep venous thrombosis of the lower extremities with iliac vein lesions treated by transcatheter thrombolysis combined with stent in Lixin People's Hospital and the First Affiliated Hospital of Bengbu Medical College were included in this study. Of the 61 patients, 20 were males and 41 were females, aged 24-75 (55.7±11.7) years, including four cases with hypertension and five cases with diabetes mellitus. The incidence and severity of PTS were assessed by using the Venous Clinical Severity Score (VCSS) and Villalta scale at 6, 12, and 24 months after operation, and the incidence of restenosis of iliac vein stent was re-examined simultaneously.Results:The operation was successfully performed in all patients, and 68 stents were implanted in 61 patients. All patients were followed up for more than 2 years (24.5-30.2 months). No postoperative death, pulmonary embolism, severe bleeding, and other adverse events occurred during follow-up for 24 months. During discharge follow-up, six patients had minor bleeding, and 16 patients had PTS. The Villalta score showed that the incidence of PTS was 6.56% (4/61, four mild cases), 14.75% (9/61, eight mild cases and one moderate case), and 26.23% (16/61, 14 mild cases and two moderate cases), and the VCSS was 3.64±1.21, 4.62±1.36, and 5.62±1.75, respectively. VCSS and PTS were significantly different at 6, 12, and 24 months ( F= 66.36, χ2=18.17, respectively; all P values <0.001). The iliac vein stenosis occurred in two patients with moderate PTS, and the patency rate of iliac vein stent was 96.72% (59/61) within 2 years. Conclusion:Catheter thrombolysis combined with stent therapy for acute deep venous thrombosis of the lower extremities in patients with iliac vein disease has a low incidence of PTS in the near and medium term within 2 years. However, the severity has progressed with the extension of observation time, which requires continuous attention.

目的 探讨下肢深静脉血栓发生肺栓塞的危险因素,构建Nomogram预测模型.方法 选取淮南东方医院集团总院在2018年1月至2022年6月收治的90例下肢深静脉血栓并发肺栓塞患者(病例组),90例下肢深静脉血栓未并发肺栓塞患者(对照组)进行分析.对患者基本资料、基础疾病、血液指标等进行分析;对差异有统计学意义的连续性变量进行受试者工作特征(ROC)曲线分析和多因素Logistic回归模型分析;将筛选出的独立危险因素建立Nomogram模型,并对此模型进行性能评价.结果 病例组患者年龄、体重指数(BMI)、吸烟、心脏病、慢性阻塞性肺疾病、静脉血栓病史占比及D-二聚体、同型半胱氨酸水平与对照组比较,差异有统计学意义(P<0.05).ROC曲线分析结果显示,年龄、BMI、D-二聚体、同型半胱氨酸的曲线下面积(95%CI)分别为0.772(0.703～0.831)、0.724(0.652～0.787)、0.873(0.815～0.918)、0.858(0.798～0.905).年龄>61岁、BMI>23.80 kg/m2、慢性阻塞性肺疾病、D-二聚体>5.94 mg/mL、同型半胱氨酸>18.85 μmol/L是下肢深静脉血栓并发肺栓塞的独立危险因素(P<0.05).决策曲线分析结果显示,风险阈值>0.02时,此模型所提供的临床净收益较高.结论 年龄>61岁、BMI>23.80 kg/m2、慢性阻塞性肺疾病、D-二聚体>5.94 mg/mL、同型半胱氨酸>18.85 μmol/L是下肢深静脉血栓并发肺栓塞的独立危险因素,该研究依据此独立危险因素建立的Nomogram模型预测性能良好.

目的:探讨TSP联合workshop模式在血管外科护理临床教学中应用价值.方法:将2019年11月至2021年3月在我院血管外科实习的60名护生按照随机数字表法分为观察组、对照组,每组30名.所有学生接受的带教时间均为1个月.对照组采用传统带教模式,观察组采用TSP联合workshop带教模式.比较2组护生带教前后的自我效能感、支持性沟通、关怀行为评价、考核成绩及满意度评分.结果:带教1个月后,观察组、对照组护生的自我效能感、支持性沟通、关怀行为评分均明显高于带教前(P＜0.05).带教1个月后,观察组护生的自我效能感、支持性沟通、关怀行为评分均明显高于对照组护生(P＜0.05).观察组护生的专科理论成绩、专科操作技能成绩得分均明显高于对照组护生(P＜0.05).观察组护生对教学方式、课程内容、学习方式、学习效果的满意度评分及满意度总分均明显高于对照组护生(P＜0.05).结论:在TSP联合workshop教学模式下,护生能够主动学习,医学理论及技能水平得到提升,有助于对学生语言表达、人际沟通能力及自我效能感的培养.

Objective:This study aims to evaluate the efficacy and safety of hybrid surgery in Stanford type B aortic dissection (TBAD) involving arch.Methods:A prospective descriptive design was adopted. Patients with TBAD involving arch who were diagnosed in the Department of Vascular Surgery of the First Affiliated Hospital of Bengbu Medical College from January 2020 to September 2021 were included. The patients comprised 16 males and 5 females, with average age of 32－81 (59.7±12.9) years. All patients were treated with a new hybrid surgery designed in combination with surgical bypass and thoracic endovascular aortic repair. The observation targets were operation time, intraoperative bleeding, patency of intraoperative blood vessels, type Ⅰ internal leakage, postoperative bed time, hospitalization expense, postoperative hospitalization time, postoperative complications, and death. The patients were followed up for stent displacement, reintervention, in-stent thrombosis, in-stent restenosis, graft infection, various types of internal leakage, patency of bypass vessels, and patency of true lumen.Results:All patients were operated successfully, and no type Ⅰ internal leakage occurred during the operation. The operation time was (156.5±19.7) min, the amount of intraoperative bleeding was (70.2±25.6) mL, and the postoperative bed rest time was (4.3±1.7) d. Eleven patients underwent bypass surgery with artificial blood vessels. The postoperative hospital stay was (9.6±3.1) d, and the hospital cost was (166±38) thousand yuan. The 10 other cases used autologous great saphenous vein, the postoperative hospital stay was (14.1±6.3) d, and the hospitalization cost (excluding 2 cases of left carotid artery stent implantation) was (130±12) thousand yuan. Except for lacunar cerebral infarction in only one patient after the operation, the other patients did not have complications such as visceral ischemia, lower limb ischemia, acute cardiac insufficiency, stroke, pulmonary embolism, cerebral infarction, pulmonary infection, and acute renal injury. The postoperative follow-up time of 21 patients was 6－12 (10.9±2.4) months. All patients had no stent deviation, no internal leakage, excellent morphology of aorta in stent segment, and smooth blood flow in true lumen and vascular bypass. No re-intervention, stent thrombosis, stent restenosis, and graft infection occurred.Conclusion:In the short- and medium-term efficacy observation, hybrid surgery is safe and effective for treatment of Stanford B thoracic aortic dissection involving the arch.

前瞻性分析蚌埠医学院第一附属医院收治的108例非血栓性髂静脉压迫综合征患者的多平面静脉造影资料，测量其下腔静脉（IVC）直径、左髂总静脉（LCIV）开口0、20、40、60、80 mm处髂静脉直径、IVC与LCIV所成角度、LCIV长度。最终解除压迫后LCIV直径为（15.6±1.9）mm，髂外静脉（LEIV）为（11.2±1.8）mm，IVC为（19.6±3.2）mm，LCIV长度为（61.3±11.0）mm，IVC与LCIV夹角为36.4°±15.8°。本研究显示下腔静脉与髂总静脉、髂外静脉变化存在一致性；髂总静脉长度与髂外静脉直径、下腔静脉与髂静脉所成角度呈负相关。

Objective:To identify the influencing factors of pathological progression in patients with Budd-Chiari syndrome (BCS) after endovascular treatment.Methods:Clinical data of 55 patients with BCS admitted the First Affiliated Hospital of Bengbu Medical College from January 2014 to December 2020 were retrospectively analyzed. Among them, 24 patients were male and 31 female, aged (48±11) years on average. The informed consents of all patients were obtained and the local ethical committee approval was received. After the first endovascular treatment, 31 patients were diagnosed with simple diaphragm type BCS, 18 cases with short-segment lesion type BCS and 6 cases with long-segment lesion type BCS. All enrolled patients received multiple endovascular treatments for consecutive 3 years or longer. The pathological progression of lesion was observed. The effects on the changes of lesions by age upon first admission, sex, frequency of surgeries, average patency time, type of lesion upon first admission and duration of taking anticoagulants were evaluated by multivariate Logistic regression analysis.Results:55 patients received 288 times of endovascular treatment which was balloon dilatation. The success rate of surgery was 100%. The vascular recanalization rate was 100%. The median time of the first patency was 9 months, 8 months for the second patency, 8 months for the third patency and 8 months for the last patency. During the treating period, the lesion type changed in 22 patients. Among them, simple diaphragm type progressed to short-segment lesion type in 13 cases, short-segment lesion type evolved to long-segment lesion type in 5, short-segment lesion type complicated with thrombosis in 3, and long-segment lesion type progressed to mixed lesion type in 1. Multivariate Logistic regression analysis demonstrated that the time of use of anticoagulants was an independent factor affecting the progression of BCS (OR=0.124, 95%CI: 0.032-0.479, P=0.002).Conclusions:Patients with BCS have the tendency of progression after endovascular treatment. Thrombosis is a critical factor for disease progression. Regular use of anticoagulants might retard the progression of lesions.

目的 探究Mini-CEX与DOPS联合的形成性评价体系在地方高等院校本科生临床实践教学中的应用.方法 选择2018年12月—2020年12月于本院临床实习的160名临床医学专业本科学生为研究对象,随机数表法分为传统教学组与形成性评价教学组(FA教学组)两组,每组各80名.传统教学组采用固定周期的科室讲座、教学查房、病例讨论的常规传统实践教学方式;FA教学组采用迷你临床演练评估(Mini-CEX)与操作技能直接观察评估(DOPS)联合的形成性评价体系教学方式.临床实践教学结束后,对比分析两组学生相关测评成绩及满意度情况.结果 临床实习前FA教学组与传统教学组在理论测评、技能操作、病历书写3个方面成绩未见明显差异(P>0.05),临床实习结束后FA教学组在理论测评、技能操作、病历书写3个方面成绩均明显优于传统教学组(P<0.01),且较自身临床实习前成绩得以明显提升(P<0.01);临床实习结束后,FA教学组于Mini-CEX评估表及DOPS评估表各项目成绩均明显优于临床实习开始前(P<0.05);临床实习结束后FA教学组的教师、护士、患者满意度评分均明显高于传统教学组(P<0.01);针对整个临床实习过程,FA教学组对临床实习教学模式满意度高于传统教学组(P<0.05).结论 Mini-CEX与DOPS联合的形成性评价体系应用于临床医学专业本科生的临床实践教学过程中将有效提升临床实践教学质量,促进学生综合实力发展进步,提高学生对教学模式的满意度.

Objective:This paper discusses the application value of CT venography (CTV) in the preoperative diagnosis of Budd-Chiari syndrome (BCS).Methods:A total of 136 patients with BCS, 78 males and 58 females aged 24-82, were included in a retrospective study conducted in the First People's Hospital of Bengbu and the First Affiliated Hospital of Bengbu Medical College from May 2017 to November 2021. The patients were examined with CTV and digital subtraction angiography (DSA), and the three-dimensional structures of the inferior vena cava, hepatic vein, and collateral vessels were reconstructed and analyzed. The following items were observed: (1) The CTV imaging findings of the patients; (2) Differences between CTV and DSA in assessing and diagnosing obstructed vessels, BCS complicated with thrombus, and liver cancer.Results:(1) The CTV imaging findings were as follows: liver cirrhosis, splenomegaly, ascites, and significantly enlarged caudate lobe; in the early stage of enhancement, the caudate lobe and the central part of the left hepatic lobe was rapidly enhanced, and the liver parenchyma showed patchy heterogeneous enhancement (central fan-like enhancement), the density of delayed enhancement tended to be uniform, and the formation of collateral circulation is visible.(2) There were no significant differences between CTV and DSA in the diagnosis of segmatic hepatic vein occlusion, membranous hepatic vein occlusion, extensive hepatic vein occlusion, segmatic inferior vena cava occlusion, membranous inferior vena cava occlusion, membranous perforated inferior vena cava occlusion, hepatic vein occlusion and inferior vena cava occlusion ( χ2= 0.13，0.00，0.00，0.44，0.13，0.25，0.80; all P values >0.05). The proportion of liver cancer diagnosed with CTV was higher than that with DSA (5 vs. 0), and the difference was statistically significant ( χ2=4.00, P=0.046). There was no significant difference in the diagnosis of BCS complicated with thrombosis between CTV and DSA. Conclusions:CTV technology can accurately display the vascular lesions of patients with BCS. Its accuracy is comparable to that of DSA but is higher in the diagnosis of combined liver cancer. Hence, CTV can facilitate the preoperative diagnosis of BCS and the formulation of clinical treatment options.

In anisotropic media, the standard perfectly matched layer (PML) technique suffers irrevocable instability in terminating the unbounded problem domains. It remains an open question whether a stable PML-like absorbing boundary condition exists. For wave scattering in a layered orthotropic medium, this question is affirmatively answered for the first time in this paper. In each orthotropic medium, the permittivity tensor uniquely determines a change of coordinates that transforms the governing anisotropic Helmholtz equation into an isotropic Helmholtz equation in the new coordinate system. This leads us to propose a novel Sommerfeld radiation condition (SRC) to rigorously characterize outgoing waves in the layered orthotropic medium. Naturally, the SRC motivates a regionalized PML (RPML) to truncate the scattering problem, in the sense that a standard PML is set up in the new coordinate system in each orthotropic region. It is revealed that the RPML is unconditionally stable compared with the unstable uniaxial PML. A high-accuracy boundary integral equation (BIE) method is developed to solve the resulting boundary value problem. Numerical experiments are carried out to validate the stability of the RPML and the accuracy of the BIE method, showing exponentially decaying truncation errors as the RPML parameters increase.

回顾性分析32例主动脉分叉覆膜支架腔内重建治疗TASCⅡD型主髂动脉闭塞症患者的近中期疗效。治疗技术成功率为100％，术后并发症率为6.25％，均无围手术期死亡，5例发生了支架内再闭塞（15.6％）。全因死亡率为0，12个月和24个月的一期通畅率分别为87.5％、84.38％，二期通畅率均为100％。本研究显示主动脉分叉覆膜支架腔内重建技术治疗 TASCⅡD型主髂动脉闭塞性疾病是安全、有效的，并可获得满意的近中期通畅率。

Objective:To explore the factors that affect the short-term efficacy of catheter-directed thrombolysis (CDT) in the treatment of lower extremity deep venous thrombosis (DVT).Methods:A retrospective case-control study was conducted to analyze the clinical data of 129 patients with lower limb DVT treated by CDT in the First Affiliated Hospital of Bengbu Medical College from November 2017 to March 2021. The patients included 56 males and 73 females aged 43.3±6.1 years old. The patients were divided into two groups according to the therapeutic effect of CDT, namely, the recanalization group (thrombolysis rate ≥50%, n=57) and non-recanalization group (thrombolysis rate <50%, n=72). The clinical data of the two groups were analyzed by univariate analysis, and the indexes with statistically significant difference were analyzed by multivariate logistic regression analysis. Results:Univariate analysis showed significant differences in age, disease course, malignant tumor, platelet, fibrinogen, and iliac vein balloon predilatation before CDT between the two groups. The results of multivariate logistic regression analysis showed that age (odds ratio[ OR]=3.261,95% confidence interval [ CI]=1.361-7.815), disease course >14 d ( OR=6.755, 95% CI=1.826-24.985), fibrinogen ( OR=1.459, 95% CI=1.055-2.018), and iliac vein balloon predilatation before CDT ( OR=5.666, 95% CI=1.325-24.235) affect the therapeutic effect of CDT. Conclusion:Age, disease course, fibrinogen, and iliac vein balloon dilatation before CDT are independent factors that affect the short-term efficacy of CDT as DVT treatment.

目的 通过开展对客观结构化临床考试(objective structured clinical examination,OSCE)在住院医师规范化培训年度考核中应用的研究,指导今后OSCE的试题设置,使试题更规范、合理.方法 选取参加2020年蚌埠医学院第一附属医院住院医师规范化培训年度考核的内科专业学员2018级62人、2019级64人的考核成绩为研究对象,分别分析OSCE设置的信度、效度、难度、区分度,并比较2个年级学员各站考试分数,讨论OSCE试题设置的合理程度及培训时间对成绩的影响.结果 OSCE设置的信度选择评价者信度进行分析,结果良好;效度使用内容效度进行评价,效度较高;OSCE试题对于2018级学员的难度在0.55～0.78、总难度为0.72,对于2019级学员的难度在0.49 ～0.79、总难度为0.67,2个年级的单站难度、总体难度基本达到适宜标准;OSCE试题对于2018级学员的区分度为0.18,对于2019级学员的区分度为0.19,稍嫌不足;比较2个年级学员各站考试分数,2018级学员有5站(共6站)成绩高于2019级学员,差异有统计学意义(P＜0.001).结论 本次OSCE考站设置较为合理,可以客观反映学员的培训水平及临床实践能力,考核区分度有上升空间,培训时间与成绩呈正相关.

Objective:This study aimed to compare the short-term efficacy of open surgery (OSR) and endovascular surgery (EVAR) for abdominal aortic aneurysm.Methods:A retrospective analysis was conducted on 118 patients who underwent surgery in the Department of Vascular Surgery of the First Affiliated Hospital of Bengbu Medical College due to abdominal aortic aneurysm from January 2008 to December 2020. The patients comprised 102 males and 16 females aged 70.5±9.6 years. According to different surgical-treatment methods, 23 cases were divided into the OSR group, and 95 cases were divided into the EVAR group. The outcome measures were as follows. (1) The baseline data of age, gender, bad living habits, complications, tumor diameter, and complex tumor neck morphology were compared between the two groups. (2) The operation time, intraoperative bleeding, fasting time, postoperative bed time, hospital stay, postoperative complications, and death were compared between the two groups. (3) Computed tomography angiography was rechecked, and the presence of reintervention, stent thrombosis, stent restenosis, graft infection, and various types of internal leakage was noted.Results:No significant difference in baseline data was observed between the OSR and EVAR groups (all P values>0.05). The operation was performed in all patients successfully. The operative time, intraoperative blood loss, water fasting time, postoperative bed time, and hospital stay in the EVAR group were all shorter than those in the OSR group: (141.15±22.97) min vs. (242.79±29.41) min, (34.32±16.08) mL vs. (443.93±109.58) mL, (14.26±3.34) h vs. (52.25±12.05) h, (4.07±0.63) d vs. (6.48±0.83) d, (21.88±1.78) d vs. (24.44±2.44) d, respectively. The differences were statistically significant( t=17.919, 17.881, 14.978, 15.532, and 4.745; all P values<0.05). No significant differences were observed in the incidence of perioperative complications and mortality between the two groups (all P values>0.05). All patients were followed up for 1 year. No serious complications were observed, except for two cases of slight type-Ⅱ internal leakage in the EVAR group. Conclusions:Open surgery and endovascular surgery for abdominal aortic aneurysm achieve good short-term treatment results. Compared with open surgery, endovascular repair has shorter operation time, less intraoperative bleeding, shorter fasting, shorter bed rest and hospital stay, and faster postoperative recovery.

新时代人才竞争日益激烈,培养具备综合素质的医学人才至关重要.一名高素质的医生,不仅需要具备过硬的专业技能、强大的知识体系、丰富的临床实践经验,还要具备人文情怀,尤其是团队合作能力等综合素质.因此在临床实践教学中,培养本科医学生团队精神与合作能力是一项重要内容.同时,随着时代的发展,社会对医疗技术水平的要求也越来越高,一项医疗工作的圆满完成需要医疗团队的密切配合,如何在教学实践中将医学生打造成专业技术水平高、团队合作能力强的综合性人才,已然成为临床实践教学的核心问题.