Clinical outcome of urgent coronary artery bypass grafting

Urgent coronary artery bypass grafting (CABG) has a higher mortality rate than elective CABG. The purpose of this study was to evaluate the clinical outcome of urgent CABG. From July 1992 to May 2005, 104 patients underwent urgent CABG. All patients required an urgent surgical revascularization within 24 hr of diagnostic coronary angiography. In-hospital mortality after urgent CABG was 17.3% (18/104). We compared preoperative characteristics and postoperative clinical outcomes between the survival group (n=86) and the mortality group (n=18). The mean age was 61.7 yr (range, 35-83). The most common cause of mortality was low cardiac output. The independent preoperative risk factors of mortality included advanced age (>70 yr) (OR=3.998, p=0.046), preoperative shock status (OR=6.542, p=0.011), and low ejection fraction (<40%) (OR=4.492, p=0.034). Other risk factors of mortality included prolonged cardiopulmonary bypass time, prolonged ventilator use, and extended intensive care unit stay. The 10-yr actuarial survival rate was 61%. Although the operative mortality rate was high after urgent CABG, a favorable long-term clinical outcome can be expected if the patients survive.     

术前他汀类药物治疗对冠状动脉旁路移植术后胸骨切口感染事件和主要心脑血管不良事件发生的影响

目的探讨冠状动脉旁路移植术(CABG)术前应用他汀类药物干预对患者术后胸骨切口感染事件发生率和主要心脑血管不良事件发生情况的影响。 方法选择2019年1月至12月于首都医科大学附属北京安贞医院心外科住院并行CABG治疗的患者880例。503例(57.2%)患者在CABG术前接受过他汀类药物治疗，将这些患者设为试验组；其余377例患者术前未应用他汀类药物，设为对照组。比较试验组和对照组患者的胸骨切口感染事件和主要心脑血管不良事件发生情况，再进行相应的风险因素分析。数据比较采用χ²检验、单因素方差分析和多元逻辑回归分析。 结果试验组患者CABG术后胸骨切口感染事件的发生率、主要心脑血管不良事件的发生率分别为2.0%、27.6%，与对照组(5.6%、35.0%)比较，差异均有统计学意义(χ²＝0.869、0.298，P＝0.005、0.022)。同时多元逻辑回归结果显示患者CABG术前应用他汀类药物治疗与术后胸骨切口感染事件显著下降具有独立相关性(OR 0.34，95%CI 0.16～0.74，P＝0.006)。此外，术前应用他汀类药物干预也与CABG术后主要心脑血管不良事件的发生率降低独立有关(OR 0.60，95% CI 0.44～0.81，P＝0.001)。 结论术前应用他汀类药物治疗能够降低患者CABG术后胸骨切口感染事件和主要心脑血管不良事件的发生。     

血嗜酸性粒细胞计数与冠状动脉旁路移植手术后肺炎风险（英文）

目的:研究血嗜酸性粒细胞计数与冠状动脉旁路移植手术患者术后肺炎风险的关系。方法:收集2008年~2017年在我院进行冠状动脉旁路移植手术的613例患者资料进行分析,比较不同血嗜酸性粒细胞计数患者术后肺炎发生率及住院死亡率,采用多因素回归分析明确患者术后肺炎的危险因素。结果:研究共纳入582例患者,其中220例患者血嗜酸性粒细胞比例2%(低血嗜酸性粒细胞组),362例患者血嗜酸性粒细胞比例≥2%(高血嗜酸性粒细胞组)。低血嗜酸性粒细胞组术后肺炎发生率(14.1%,31/220)明显高于高血嗜酸性粒细胞组(6.4%,23/362,P=0.002),而2组患者住院死亡率无明显差异。多因素回归分析结果显示低血嗜酸性粒细胞计数(OR=3.521,95%CI:1.213~10.223,P=0.021)、鼻胃管(OR=6.490,95%CI:2.757~15.280,P0.001)和机械通气时间≥24 h(OR=3.496,95%CI:1.156~10.178,P=0.035)为术后发生肺炎的独立危险因素。结论:低血嗜酸性粒细胞计数患者冠状动脉旁路移植手术后发生肺炎的风险升高。     

术前低白蛋白血症与后路腰椎融合术后不良结局发生率的相关性

目的 探讨术前低白蛋白血症与后路腰椎融合术（posterior lumbar interbody fusion,PLIF）后不良结局发生率的相关性。 方法 选取珠江医院2017年1月~2019年12月接受后路腰椎融合术治疗的腰椎退行性疾病患者1372例,男597例,女775例,平均年龄（58.11±12.56）岁,根据术前血清白蛋白（albumin,ALB）水平,分为低白蛋白组（ALB<35 g/L,n=91）和正常白蛋白组（ALB≥35 g/L,n=1281）,比较两组患者术后3个月内发生的不良结局（术后转ICU监护、术后特定并发症、再次入院、切口感染、愈合不良等）,通过logistic多元回归分析模型及混杂因素调整来评估术前血清白蛋白水平与术后不良结局之间的关系及术前低白蛋白血症与术后不良结局发生率的相关性。 结果 术前白蛋白水平与术后不良结局的发生密切相关（OR＝0.94;95% CI：0.90~0.98;P<0.05）,术前低白蛋白组患者发生术后不良结局的风险是术前正常白蛋白组的2.15倍（OR＝2.15;95% CI：1.21~3.79;P<0.05）。 结论 术前低白蛋白血症患者会显著增加PLIF术后不良结局的发生率,术前血清白蛋白水平可作为预测PLIF术后不良结局发生的重要参考指标。     

脊柱术后发生手术部位感染独立危险因素的Meta分析

文题释义：手术部位感染：术后30 d内(或者置入内固定装置1年内)发生的浅表、深部或者器官的感染。浅部感染指术后30 d内发生感染，感染只涉及切口皮肤或皮下组织。深部感染指若无植入物留在原位，感染发生在术后30 d内；若植入物在原位，感染发生在1年内，并且感染可能与手术有关，深部感染涉及深部软组织。当感染涉及解剖的任何部分(如器官或空间)而非手术操作的切口感染即为器官感染。 背景：脊柱术后手术部位感染的危险因素多样且复杂，目前国内外对于脊柱术后手术部位感染相关危险因素的研究仍然存在较大的争议。 目的：系统评价脊柱术后手术部位感染的独立危险因素，为手术部位感染的防治提供理论依据。 方法：检索2004年1月至2019年6月中外数据库，按照拟定的文献纳入与排除标准获得有关脊柱术后手术部位感染独立危险因素的病例-对照研究和队列研究，提取有效数据，分别采用固定效应模型和随机效应模型计算各独立危险因素(高血压、糖尿病、肥胖、吸烟、手术史)的合并OR值和95%CI进行Meta分析，比较其结果的一致性，分析合并结果的可靠性。 结果与结论：①共纳入19篇文献，共包括脊柱术后发生手术部位感染的病例1 008例，对照组7 527例；②各独立危险因素合并OR值(95%CI)由高到低依次为：糖尿病(OR=3.24，95%CI：2.09-5.02)、肥胖(OR=2.99，95%CI：1.77-5.05)、手术史(OR=2.12，95%CI：1.79-2.50)、高血压(OR=1.90，95%CI：1.34-2.69)、吸烟(OR=1.85，95%CI：1.39-2.48)；③提示糖尿病、高血压、肥胖、吸烟、手术史均为脊柱术后发生手术部位感染的独立危险因素，各独立危险因素与脊柱术后发生手术部位感染的概率均呈正相关。 ORCID: 0000-0002-4963-6988(覃作恒) 中国组织工程研究杂志出版内容重点：人工关节；骨植入物；脊柱；骨折；内固定；数字化骨科；组织工程     

普外科术后继发脑梗死的多因素Logistic回归分析

目的 探讨普外科术后并发脑梗死的高危因素,为早期识别及干预提供依据。方法 收集2013年1月~2017年12月我院普外科术后发生脑梗死患者及同期其它手术患者共2835例的临床资料,通过多因素Logistic回归分析确定普外科术后并发脑梗死的独立危险因素。结果 多因素回归分析显示,年龄（OR=2.001,95%CI:1.117~3.472）、手术类型（OR=2.199,95%CI:1.203~4.425）及术中低灌注（OR=2.421,95%CI:1.387~4.974）是普外科术后继发脑梗死的独立因素（P＜0.05）。结论 年龄≥65岁、恶性肿瘤手术及术中低灌注是普外科术后脑梗死形成的可能原因,早期识别高危患者及对相关高危因素进行干预,对预防普外科围手术期脑梗死的发生意义重大。     

全膝关节置换治疗类风湿性膝关节炎的早期急性并发症

文题释义：全膝关节置换：是通过手术将人工关节假体置入患者膝关节部位,以替代原有的病损关节,达到缓解疼痛、恢复下肢力线及改善患者生活质量的目的,对治疗类风湿性膝关节炎、膝关节退行性病变等膝关节疾病具有显著疗效。 类风湿性关节炎：是一种病因未明的慢性、以炎性滑膜炎为主的系统性疾病。其特征是手、足小关节的多关节、对称性、侵袭性关节炎症,经常伴有关节外器官受累及血清类风湿因子阳性,可以导致关节畸形及功能丧失。晚期累及膝关节的类风湿性关节炎可行全膝关节置换术可显著改善患者生活质量。 背景：类风湿性关节炎患者行全膝关节置换的数量不断增加,但是目前尚无研究报道类风湿性关节炎患者行全膝关节置换后早期并发症的发生情况及相关危险因素。 目的：探讨类风湿性关节炎患者行初次全膝关节置换后早期急性并发症的发生情况及危险因素。 方法：回顾性分析2013年9月至2019年5月于青岛大学附属医院因类风湿性关节炎行初次全膝关节置换的300例患者(337膝)的资料,其中男62例,女238例,平均(65.61±8.40)岁。所有患者对治疗方案均知情同意,且得到医院伦理委员会批准。收集并记录患者基本信息、并存疾病、术前检查、手术信息、住院其他信息及随访资料,分析患者并发症发生的相关危险因素,并利用受试者工作特征曲线计算相关资料对类风湿性关节炎患者术后30 d内并发症的预测价值。 结果与结论：①共9例患者在术后30 d内出现急性并发症,发生率为3.33%;②多因素Logistic回归分析结果显示,并发症组患者手术时间、年龄、病程和术前合并脑血管疾病是类风湿性关节炎患者全膝关节置换后30 d内并发症发生的独立危险因素;③并发症组患者手术时间大于无并发症组(OR=1.023,95%CI：1.001-1.045,P=0.037),年龄大于无并发症组(OR=1.163,95%CI：1.025-1.319,P=0.019),病程大于无并发症组(OR=1.110,95%CI：1.031-1.195,P=0.006),术前合并脑血管疾病比例大于无并发症组(OR=31.736,95%CI：4.053-248.517,P=0.001);④受试者工作特征曲线表明,年龄、病程及手术时间预测类风湿性关节炎患者全膝关节置换后30 d内并发症的曲线下面积分别为0.693,0.865,0.685。 ORCID: 0000-0003-2279-2742(沈瑞) 中国组织工程研究杂志出版内容重点：人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程     

Impact of preoperative mild renal dysfunction on short term outcome in isolated Coronary Artery Bypass (CABG) patients

Background and Aim:

It is well known that dialysis dependent renal failure increases the likelihood of poor outcome following cardiac surgery. But the results of CABG in patients with mild renal dysfunction are not clearly established. The aim of the study is to analyze the risk of preoperative mild renal dysfunction on outcome after isolated coronary surgery.

Materials and Methods:

We reviewed prospectively collected data between June 2006-Nov 2006 in 488 patients who underwent isolated CABG. We separated the data into two groups. Control group having normal renal function and study group having mild renal dysfunction (serum creatinine 1.4 mg-2.2 mg%). Among 488 patients, 412 patients were in control group and 76 patients were in the study group.

Results:

Analysis of data showed significant postoperative complications in the mild renal dysfunction group, like increased operative mortality (7.5% vs 1.6%), increased requirement of postoperative renal replacement therapy (10% vs 1.2%), increased incidence of new onset atrial fibrillation (20% vs 4.2%) and prolonged duration of ICU stay. Multivariate analysis adjusting for known risk factors confirmed preoperative mild renal dysfunction (S.creat.1.4-2.2 mg/dl) is an independent risk factor for postoperative morbidity and mortality. (Adj. OR: 4.47; 95% CI: 1.41-14.16; P=0.010).

Conclusion:

Mild renal dysfunction is an important independent predictor of outcome in terms of in-hospital mortality and morbidity in patients undergoing CABG.     

AMI患者PCI术后再发的危险因素分析

目的:探讨急性心肌梗死(Acute myocardial infarction,AMI)患者经皮冠状动脉介入治疗(Percutaneous Coronary Intervention,PCI)术后再发的危险因素,并分析其观察要点.方法:选择2018年1月至2019年3月在我院接受PCI治疗的185例AMI患者进行研究....     

Polymorphisms of TNF microsatellite marker a and HLA-DR-DQ in diabetes mellitus-a study in 609 Swedish subjects

We explored the importance of the genetic markers microsatellite TNFa, HLA-DR3-DQ2, and DR4-DQ8 in diabetes mellitus. The studied groups comprised autoimmune type 1 (n = 63), nonautoimmune type 1 (n = 35), latent autoimmune diabetes in adults (LADA; n = 54), and nonautoimmune type 2 (n = 340) and these patients were compared to 117 healthy controls. HLA genotyping was done with polymerase chain reaction and sequence-specific oligonucleotides. TNFa microsatellites were determined with polymerase chain reaction and fragment size determination. Univariate analysis of these genetic risk factors demonstrated that homozygosity for TNFa2/2 was a significant risk factor for autoimmune type 1 diabetes (odds ratio (OR) = 5.82; 95% confidence interval (95%CI) 1.97-17.2), for autoimmune negative type 1 diabetes (OR = 4.63; 95%CI 1.32-16.2), and for LADA (OR = 3.90; 95%CI 1.21-12.5). Moreover, heterozygosity for HLA-DR3-DQ2/DR4-DQ8 was an important risk factor for autoimmune type 1 diabetes (OR = 16.4; 95%CI 3.60-75) as was DR4-DQ8/x (OR = 2.52; 95%CI 1.27-4.98). Heterozygosity for HLA-DR3-DQ2/DR4-DQ8 was a risk factor also for LADA (OR = 10.0; 95%CI 2.05-48.9). Neither HLA-DR3-DQ2 nor DR4-DQ8 were risk factors for nonautoimmune type 1 or type 2 diabetes. We concluded that heterozygosity for DR3-DQ2/DR4-DQ8 and to some extent homozygosity for TNFa2/2 were risk factors for autoimmune diabetes irrespective of the clinical classification.     

Risk Factors for the Development of Extended-Spectrum Beta-Lactamase-Producing Bacteria in Nonhospitalized Patients

Although the risk factors for acquiring infection by extended-spectrum beta-lactamase (ESBL)-producing bacteria have been investigated in hospitalized patients, such risk factors have not been defined in the community setting. In this study, clinical data from a total of 311 nonhospitalized patients with community-acquired urinary tract infection (128 with ESBL-positive strains and 183 with ESBL-negative strains) were obtained. According to a multivariate analysis, the following were identified as independent risk factors: previous hospitalization in the past 3 months (OR=8.95, 95%CI, 3.77–21.25), antibiotic treatment in the past 3 months (OR=3.23, 95%CI, 1.76–5.91), age over 60 years (OR=2.65, 95%CI, 1.45–4.83), diabetes (OR=2.57, 95%CI, 1.20–5.51), male gender (OR=2.47, 95%CI, 1.22–5.01), Klebsiella pneumoniae infection (OR=2.31, 95%CI, 1.17–4.54), previous use of third-generation cephalosporins (P=0.014, OR=15.8, 95%CI, 1.7–143), previous use of second-generation cephalosporins (P<0.0001, OR=10.1, 95%CI, 4.2–24), previous use of quinolones (P=0.001, OR=4.1, 95%CI, 1.8–9.0), and previous use of penicillin (P=0.003, OR=4.0, 95%CI, 1.6–9.0).     

Transposition of autologous cultivated bone marrow cells promotes prevention and treatment of immunodependent complications in cardiosurgical patients

Coronary artery bypass grafting (CABG) has been made in two groups of patients with chronic heart failure (CHF) with further estimation of the rate of postoperative organic dysfunctions and pyoseptic complications. In group 1 (n = 50) CABG was combined with intracoronary or intramyocardial injection of autologous precultivated for 7-8 days mononuclear cells of the bone marrow (1 x 10(9) cells). In group 2 (n = 479) the intraoperative injection of the above cells was not made. It was found that autologous cultivated mononuclear bone marrow cells prevent organic dysfunction and reduce frequency of infectious-septic complications especially in patients with preoperative focuses of chronic infections.     

不同亚型急性脑梗死出血转化的发生及相关危险因素分析

目的　研究不同亚型急性脑梗死出血转化的发生率及相关危险因素。 方法　选择南方医科大学南方医院及中山市人民医院神经内科自2008年1月至2011年12月收治的连续入院的急性脑梗死患者977例,按是否发生出血转化分为出血转化组（HT）142例及非出血转化组（NHT）835例,登记所有患者的基线资料并统计各病例的TOAST分型,分析不同亚型的急性脑梗死患者出血转化的发生率,采用Logistic回归分析脑出血转化的危险因素。 结果　大动脉粥样硬化性、心源性脑梗死、小动脉闭塞型脑梗死出血转化的发生率分别为12.8%、31.1%、6.6%;多因素Logistic回归分析显示出血转化的主要危险因素分别为大面积脑梗死（OR=10.498,95% CI6.520～17.131,P=0.000）、心房纤颤（OR=1.718,95% CI 　1.217～2.941,P=0.005）、糖尿病（OR=1.817,95%CI 1.135～2.903,P=0.012）及抗凝（OR=7.748,95% CI 　2.416～25.847,P=0.000）治疗。高血压、高低密度脂蛋白胆固醇以及抗血小板聚集治疗不是HT的独立危险因素。 结论　不同亚型脑梗死HT发生率不同,心源性脑梗死是脑出血转化的主要原因,大面积脑梗死、心房纤颤、糖尿病及抗凝治疗是HT的独立危险因素。     

A novel risk score to predict diagnosis with coronavirus disease 2019 (COVID-19) in suspected patients: A retrospective,multicenter, and observational study

The aim of the study was to explore a novel risk score to predict diagnosis with COVID-19 among all suspected patients at admission. This was a retrospective, multicenter, and observational study. The clinical data of all suspected patients were analyzed. Independent risk factors were identified via multivariate logistic regression analysis. Finally, 336 confirmed COVID-19 patients and 139 control patients were included. We found nine independent risk factors for diagnosis with COVID-19 at admission to hospital: epidemiological exposure histories (OR:13.32; 95%CI, 6.39-27.75), weakness/fatigue (OR:4.51, 95%CI, 1.70-11.96), heart rate less than 100 beat/minutes (OR:3.80, 95%CI, 2.00-7.22), bilateral pneumonia (OR:3.60, 95%CI, 1.83-7.10), neutrophil count less than equal to 6.3 × 10⁹/L (OR: 6.77, 95%CI, 2.52-18.19), eosinophil count less than equal to 0.02 × 10⁹/L (OR:3.14, 95%CI, 1.58-6.22), glucose more than equal to 6 mmol/L (OR:2.43, 95%CI, 1.04-5.66), D-dimer ≥ 0.5 mg/L (OR:3.49, 95%CI, 1.22-9.96), and C-reactive protein less than 5 mg/L (OR:3.83, 95%CI, 1.86-7.92). As for the performance of this risk score, a cut-off value of 20 (specificity: 0.866; sensitivity: 0.813) was identified to predict COVID-19 according to reciever operator characteristic curve and the area under the curve was 0.921 (95%CI: 0.896-0.945; P < .01). We designed a novel risk score which might have a promising predictive capacity for diagnosis with COVID-19 among suspected patients.     

老年髋部骨折围术期肺部感染危险因素分析

背景：目前对于老年骨折治疗后肺部感染的研究少有报道,对于老年特殊部位,如髋部骨折后围术期肺部感染的并发症也无少见相关报道。 目的：探讨老年髋部患者骨折患者围术期合并肺部感染的危险因素。 方法：回顾性分析46例老年髋部骨折围术期合并肺部感染的病例资料,并随机选择同时期同一区域住院的未合并肺部感染的老年髋部骨折患者46例作为对照,比较两组患者围术期各临床指标的差异性,合并肺部感染的危险因素行Logistic回归多因素分析。 结果与结论：单因素相关分析筛选出14个可能的围术期合并肺部感染相关因素,包括：慢性阻塞性肺病、吸烟、糖尿病、心脏疾病、机械通气、术中出血量、输注红细胞、手术时间、术前低体质量指数(体质量指数< 18.5 kg/m²)、血清白蛋白< 35 g/L、电解质紊乱、入住ICU及住院时间;Logistic多因素回归分析显示：慢性阻塞性肺病(OR=23.317;95%CI：2.702-60.312;P=0.000)、入住ICU(OR= 7.890;95%CI：2.624-76.012;P=0.008)、机械通气 (OR=35.210;95%CI：8.464-131.203;P=0.017)、手术时间(OR=12.122;95%CI：5.154-99.098;P=0.012)为老年髋部骨折患者围术期肺部感染的独立危险因素。说明老年髋部骨折患者存在慢性阻塞性肺病、入住ICU及机械通气等因素时应警惕发生肺部感染的可能。中国组织工程研究杂志出版内容重点：人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程全文链接：     

Mediastinitis due to Gram-negative bacteria is associated with increased mortality

The aim of this study was to describe the features of a large cohort of patients with postoperative mediastinitis, with particular regard to Gram-negative bacteria (GNB), and assess their outcome. This bicentric retrospective cohort included all patients who were hospitalized in the Intensive Care Unit with mediastinitis after cardiac surgery during a 9-year period. Three hundred and nine patients developed a mediastinitis with a mean age of 65 years and a mean standard Euroscore of six points. Ninety-one patients (29.4%) developed a GNB mediastinitis (GNBm). Of the 364 pathogens involved, 103 GNB were identified. GNBm were more frequently polymicrobial (44% versus 3.2%; p <0.001). Being female was the sole independent risk factor of GNBm in multivariate analysis. Initial antimicrobial therapy was significantly more frequently inappropriate with GNBm compared with other microorganisms (24.6% versus 1.9%; p <0.001). Independent risk factors for inappropriateness of initial antimicrobial treatment were GNBm (OR = 8.58, 95%CI 2.53–29.02, p 0.0006), and polymicrobial mediastinitis (OR = 4.52, 95%CI 1.68–12.12, p 0.0028). GNBm were associated with more drainage failure, secondary infection, need for prolonged mechanical ventilation and/or use of vasopressors. Thirty-day hospital mortality was significantly higher with GNBm (31.9 % versus 17.0%; p 0.004). GNBm was identified as an independent risk factor of hospital mortality (OR = 2.31, 95%CI 1.16–4.61, p 0.0179).     

Long term results of ST-segment elevation myocardial infarction versus non-ST-segment elevation myocardial infarction after off-pump coronary artery bypass grafting: propensity score matching analysis

There is no consensus as to which acute myocardial infarction subtype poses a greater risk after coronary artery bypass grafting (CABG). We compared the early and the long term results of off-pump coronary artery bypass grafting (OPCAB) between patients with STEMI (group I, n = 83), and NSTEMI (group II, n = 237). Group I had higher EuroSCORE, prevalence of emergency surgery, preoperative intra-aortic balloon pump use, preoperative emergency percutaneous transluminal coronary angioplasty, and preoperative thrombolytic use than group II. There were no significant differences in 30-day mortality and major adverse cardiac and cerebrovascular event (MACCE) between groups. Overall 8-yr survival was 93% and 87% in groups I and II, respectively. Freedom from MACCE after 8 yr was 92% and 93% in groups I and II, respectively. After propensity score matching analysis, there were no significant differences in preoperative parameters, postoperative in-hospital outcomes, and long-term clinical outcomes. Surgical results of OPCAB in patients with acute myocardial infarction show good results in terms of long-term survival and freedom from MACCE, with no significant differences in clinical outcomes between STEMI and NSTEMI groups.     

The value of preoperative systemic immune-inflammation index in predicting vascular invasion of hepatocellular carcinoma: a meta-analysis

Vascular invasion and systemic immune-inflammation index (SII) are risk factors for the prognosis of patients with hepatocellular carcinoma. At present, the correlation between the two is not clear. This meta-analysis explored the relationship between preoperative SII and vascular invasion in patients with hepatocellular carcinoma. According to the search formula, the Pubmed, Embase, Cochrane, Web of Science, and CNKI databases were searched for the relevant research until March 2020. After the quality evaluation of the included literature, the odds ratio (OR) and its corresponding 95% confidence interval (CI) were used as the effect measure. Stata 15. 0 software was used for statistical analysis. The meta-analysis eventually included seven retrospective cohort studies of 3583 patients with hepatocellular carcinoma. The results showed that the choice of SII cut-off value affects SII''s efficiency in predicting the risk of vascular invasion. In the cohort of studies with appropriate SII cut-off value, the high SII preoperative group had a higher risk of vascular invasion (OR=2.62; 95%CI: 2.07-3.32; P=0.000) and microvascular invasion (OR=1.82; 95%CI: 1.01-3.25; P=0.045) than the low SII group. The tumor diameter (OR=2.88; 95%CI: 1.73-4. 80; P=0.000) of the high SII group was larger than that of the low SII group. There was no publication bias in this study (Begg''s test, P=0.368). As a routine, cheap, and easily available index, SII can provide a certain reference value for clinicians to evaluate vascular invasion before operation.     

农村自杀者心理解剖条件Logistic回归分析

目的：应用心理解剖的方法探讨农村自杀的危险因素。方法：选择2000年～2001年辽宁省大连金州和庄河地区自杀死亡者66例，并按1：1选取对照组进行问卷调查。结果：本次研究的结果有3个因素作为自杀的重要危险因素保留在最后的方程中，分别为社会支持总分(OR=0．66，95％CI=0．48～0．91)、汉密顿抑郁总分(OR=1．18，95％CI=1．03～1．35)、神经症(OR=2594．59，95％CI=6．29～1069550)。结论：自杀并不是单一因素作用的结果，预防自杀要对多个因素共同干预。