老年肺癌患者胸腔镜术后心肺并发症预测模型的建立与分析*

目的通过分析老年肺癌患者电视胸腔镜手术(VATS)后心肺并发症的危险因素,建立列线图评价模型,并评价预测术后并发症的准确性。方法选择2015年1月-2018年1月该院胸外科收治的老年肺癌并行VATS术治疗的患者476例作为研究对象,将发生术后心肺并发症的患者166例作为并发症组、310例无心肺并发症的患者作为对照组。单因素分析发生并发症的相关因素,将有统计学意义的指标纳入多因素Logistic回归模型,分析老年肺癌患者VATS术后心肺并发症的危险因素。根据回归分析结果,建立列线图评价模型。利用Hosmer-Lemeshow检验评价模型预测效能。结果 Logistic回归分析显示,年龄(OR=1.337)、血糖(OR=4.647)和手术难度(OR=4.598)是发生术后并发症的危险因素,白蛋白(OR=0.660)是发生术后并发症的保护因素(P0.05)。列线图模型显示,随着年龄、血糖和手术难度地增加、白蛋白指标地降低,列线图模型相应评分也增高,对应的并发症发生风险上升。Hosmer-Lemeshow检验结果显示,列线图模型预测效能为81.93%(P=0.894)。结论基于年龄、血糖、手术难度和白蛋白建立预测老年肺癌患者VATS术后心肺并发症发生风险的列线图模型,具有良好的预测效能,临床价值较高。     

三种常用指标体系在评估乙型肝炎病毒相关慢加急性肝衰竭患者短期预后中的应用比较

目的探讨预后营养指数（PNI）、抗凝血酶Ⅲ（AT-Ⅲ）、中国重症乙型肝炎研究学组-慢加急性肝衰竭评分（COSSH-ACLFs）模型在乙型肝炎病毒（HBV）相关慢加急性肝衰竭（ACLF）患者病情严重程度及短期预后中的价值。 方法回顾性分析2016年1月至2021年9月在南通大学附属南通第三医院诊治的277例HBV相关ACLF患者的临床资料,根据90 d预后情况,将患者分为好转组（108例）和恶化组（169例）。根据患者入院后24 h内血常规、肝肾功能、凝血功能、肝性脑病分级、平均动脉压、血氧饱和度、吸入氧流量,结合患者年龄,计算出PNI、慢性肝衰竭-慢加急性肝衰竭评分、COSSH-ACLFs。采用Logistic回归分析及受试者工作特征（ROC）曲线评估PNI、AT-Ⅲ、COSSH-ACLFs预测HBV相关ACLF患者90 d短期预后的价值。 结果恶化组COSSH-ACLFs明显高于好转组（Z = 11.189,P<0.001）,PNI、AT-Ⅲ水平均明显低于好转组（Z = 6.815、6.000,P均<0.001）。多因素回归分析结果提示PNI[比值比（OR）= 0.886,95%置信区间（CI）（0.815,0.963）,P = 0.004]、AT-Ⅲ [OR = 0.925,95%CI（0.893,0.958）,P<0.001]、COSSH-ACLFs[OR = 11.456,95%CI（5.700,23.023）,P<0.001]为HBV相关ACLF患者90 d预后的独立影响因素。PNI、AT-Ⅲ、COSSH-ACLFs预测HBV相关ACLF患者短期预后的曲线下面积（AUC）分别为0.737、0.720、0.893;三者联合预测模型的预测效能最佳,AUC达到0.926。 结论PNI、AT-Ⅲ、COSSH-ACLFs对预测HBV相关ACLF患者的短期预后具有良好的价值,联合应用预测价值更优。     

pT1-pT2直肠癌患者区域淋巴结转移临床及病理学危险因素分析

目的分析病理分期为pT1．pT2直肠癌患者出现区域淋巴结转移（1ymph node metastasis,LNM）的危险因素。方法对543例直肠癌行直肠癌根治术术后病理分期为pT1．pT2患者资料,用单因素及多因素分析其出现区域LNM的高危因素。结果pT1．pT2患者543例中,76例（14．0％）出现区域LNM,单因素分析提示,肿瘤浸润深度（pT2）、肿瘤形态（非息肉状）、肿瘤低分化（Poor differentiated,PD）、脉管侵犯（Lymphovascular Invasion,LVI）、神经周围侵犯（Perineural Invasion,PNI）（P〈O．01）、瘤床结缔组织形成（中、重度）是术后发现区域LNM的危险因素;Logistic多因素分析提示,LVI、PD、pT2是出现区域LNM的独立危险因素。结论脉管侵犯、肿瘤低分化及肿瘤浸润深度是预测pT1-pT2直肠癌患者出现区域LNM的独立危险因素。     

术前纤维蛋白原与淋巴细胞比值在胃癌神经侵犯预测价值研究

目的 探索术前纤维蛋白原与淋巴细胞比值 (fibrinogen lymphocyte ratio, flR)在胃癌神经侵犯 (perineural invasion,PNI)中的临床意义。方法 收集 2020年 10月～2022年 2月在江苏省肿瘤医院接受手术切除且经病理学检查证实为胃癌并符合入组的患者 360例,同时收集临床病理资料。受试者工作曲线（ROC）确定术前 flR判断胃癌神经侵犯发生的最佳截断值。采用二分类 Logistic回归进行单因素和多因素分析,确定与神经侵犯发生相关的危险因素。结果 神经侵犯阳性患者的 flR水平 (2.37 ±1.31)明显高于神经侵犯阴性组的 flR水平 (1.87 ±0.90),差异有统计学意义 (t=4.184, P<0.05);同时神经侵犯阳性组患者的恶性程度（肿瘤浸润程度,淋巴结转移,TNM分期）更显著,差异有统计学意义 (t=162.110,70.530,142.910,均 P<0.05)。ROC曲线分析,flR曲线下面积为 0.650(95% CI:0.592～0.707),最佳截断值为 1.82,灵敏度和特异度分别为 64.4%,62.4%。Logistic多因素分析显示 flR>1.82 (OR=2.155, 95% CI: 1.086～4.277, P=0.028),肿瘤浸润程度 (OR=6.405,95% CI:2.040～20.107,P=0.001),II期 (OR=7.002,95% CI: 1.614～30.374,P=0.009)和 III期 (OR=10.718,95% CI:1.809～63.498,P=0.009)是胃癌患者发生神经侵犯的独立危险因素。在淋巴结发生转移组中,多因素分析显示, flR>1.82(OR=2.311, 95% CI:1.074～4.974,P=0.032)和肿瘤浸润程度 (OR=12.401,95% CI:4.549～33.806,P<0.001)是患者发生神经侵犯的独立危险因素。结论 术前监测 flR水平对预测胃癌患者发生神经侵犯有一定参考价值。     

腭裂患儿术后并发症发生的危险因素分析及干预措施

目的探讨腭裂患儿术后并发症发生的危险因素及干预措施。方法选取2017年7月至2019年3月我院收治的85例腭裂患儿作为研究对象,收集患儿基本资料、围手术期相关指标及术后并发症发生情况。采用单因素分析和多因素logistic回归分析腭裂患儿术后并发症发生的影响因素,并制定相应的干预措施。结果本组发生术后并发症患儿16例(18.82%)。单因素分析显示,年龄、术前血红蛋白、术前白蛋白、手术次数、单次手术时间、住院时间、术后疼痛及使用抗生素是影响腭裂患儿术后并发症发生的相关因素(P<0.05);多因素logistic回归分析显示,年龄、术前白蛋白、术后疼痛是影响腭裂患儿术后发生并发症的独立危险因素(P<0.05)。结论腭裂患儿术后发生并发症受年龄、术前白蛋白及术后疼痛的影响,需要通过加强术前评估、给予充足营养、提高凝血功能、缓解术后疼痛降低术后并发症发生。     

Risk factors for microvascular and macrovascular complications in men and women with type 2 diabetes.

OBJECTIVE: To evaluate the importance of risk factors for microvascular and macrovascular complications, separated by sex, in type 2 diabetes. DESIGN: Cross-sectional surveys of diabetic patients registered with primary health services in 1995. SETTING: Three community health centres in Stockholm County. SUBJECTS: 407 subjects with type 2 diabetes in 1995. For 78 of these, data were also registered in 1992. MAIN OUTCOME MEASURES: Odds ratio (OR) by logistic regression for risk factors predicting microvascular and macrovascular complications, for age and duration in years. RESULTS: For microvascular complications, the most important factors were in men the duration of diabetes (OR 1.13, p < 0.001) and in women the duration of diabetes (OR 1.08, p < 0.001) and age (OR 1.04, p < 0.05). For macrovascular complications, the most important factors were in men, age (OR 1.09, p < 0.001) and hypertension (OR 4.85, p < 0.001) and in women, age (OR 1.08, p < 0.001) and duration of diabetes (OR 1.08, p < 0.01). CONCLUSIONS: Hypertension is more important among men and the duration of diabetes among women as risk factor for macrovascular complications in type 2 diabetes.     

Risk factors for postoperative nosocomial infections in the department of otorhinolaryngology北大核心CSCD

Objective To analyze the risk factors for postoperative nosocomial infections in the department of otorhinolaryngology, and provide guidance on improving the quality of life for patients. Methods The clinical data of the patients undergoing surgical procedure in the department of otorhinolaryngology form January 2011 to December 2016 were reviewed to identify the potential risk factors of nosocomial infections. Chi-square test and multivariate logistic regression model were used for the analysis. Results A total of 152 (2.25%) cases of nosocomial infection were identified in 6 753 cases of surgical operation. Univariate analysis revealed that sex, age, length of stay, patient referral, class of surgical wounds, length of operation, and complications were related to postoperative nosocomial infections. The patients without nosocomial infection showed higher cure rate than those complicated with nosocomial infection (P<0.05). Multivariate logistic regression analysis identified that male (OR=2.831, 95% CI: 1.758-4.558), older (OR=5.833, 95% CI: 4.491-7.577), patient referral (OR=1.790, 95% CI: 1.008-3.178), higher class of surgical wound contamination (OR=34.866 for Class I, OR=2 120.995 for Class II, and OR=43 917.453 for Class III wounds), and longer length of operation (OR=9.384, 95% CI: 18.168-47.525) were the independent risk factors for postoperative nosocomial infections in the department of otorhinolaryngology. Conclusions Multiple risk factors are associated with postoperative nosocomial infections in the department of otorhinolaryngology. Integrated measures must be taken for prevention and control of nosocomial infections based on the specific conditions of the patient. © 2018, Editorial Department of Chinese Journal of Infection. All rights reserved.     

肌酐/胱抑素C对晚期上皮性卵巢癌术后并发症的预测价值

目的研究肌酐/胱抑素C(CCR)对晚期上皮性卵巢癌(EOC)术后并发症的预测价值。 方法对2017年1月1日至2020年10月30日于济宁医学院附属医院妇科行手术治疗的106例晚期EOC患者进行回顾性队列研究。单因素回归分析确定术后并发症的潜在危险因素。Logistic回归分析确定术后并发症的独立影响因素。受试者工作特征(ROC)曲线确定CCR的最佳临界值。根据临界值将患者分为高CCR组及低CCR组,分析CCR与术后并发症的关系。 结果76例(71.70%)患者发生术后并发症。调整相关混杂因素后,Logistic回归分析结果显示,术中出血量>300 ml(OR＝8.53,95%CI 2.04~35.74)是术后并发症的独立危险因素(P<0.01);而CCR是术后并发症的独立保护因素,CCR每升高1个单位,术后并发症降低40.00%(OR＝0.60,95%CI 0.37~0.97,P<0.05)。术前CCR的最佳截断值为8.165。低CCR组术后总体并发症的发生率(72/91,79.12%)明显高于高CCR组(4/15,26.67%)(χ²＝14.46,P<0.01);低CCR组术后轻度并发症的发生率(62/91,68.13%)明显高于高CCR组(3/15,20.00%)(χ²＝12.58,P<0.01)。 结论术前CCR能有效预测晚期EOC患者术后并发症的发生。     

Assessment of risk factors for early seizures following surgery for meningiomas using logistic regression analysis

This study analysed the influence of clinical factors on early postoperative seizures in patients with meningiomas and constructed a logistic regression equation for assessing risk factors. Clinical data from 222 patients with meningiomas were collected. The odds ratios (ORs) for independent variables were determined: the ORs for preoperative seizure history and movement disorder were > 1, whereas the OR for prophylactic therapy was < 1. A logistic regression analysis was then performed to select potential risk factors for early postoperative seizures. Five variables (preoperative seizure history, movement disorder, tumour location, primary location of initial tumour and prophylactic therapy) were introduced into the regression model. A logistic regression equation was then constructed that had a positive predictive value of 66.65% and a negative predictive value of 84.95%. This suggested that the five variables introduced in the equation were closely associated with early postoperative seizures, with preoperative seizure history and movement disorder as potential risk factors and prophylactic therapy as a protective factor.     

成人心脏直视术后手术部位感染危险因素分析

目的 探讨成人心脏直视术后手术部位感染(SSI)发生的危险因素,为控制SSI的发生提供依据.方法 对本院心脏外科2001年1月至2009年12月间体外循环心脏直视术后发生SSI 54例成年患者临床资料进行分析,按1:3比例配对选取对照组.对2组患者的临床资料中SSI的潜在危险因素进行单因素和多因素条件Logistic回归分析.结果 单因素条件Logistic分析:左心室射血分数(LVEF)<50%(OR=2.134,95%CI:1.095～4.159,P=0.026),心功能NYHA≥Ⅲ级(OR=2.390,95%CI:1.218～4.690,P=0.011),糖尿病(OR=3.275,95%CI:1.391-7.708,P=0.007),慢性阻塞性肺疾病(COPD)(OR=5.408,95%CI:1.248～23.445,P=0.024),体外循环时间>90 min(OR=3.045,95%CI:1.540～6.024,P=0.001),手术时间>4 h(OR=3.281,95%CI:1.610～6.685,P=0.0131),血液制品用量>2 U(OR=1.929,95%CI:1.018～3.675,P=0.044),切口连续缝合(OR=2.344,95%CI:1.221～4.498,P=0.010),二次开胸止血(OR=6.625,95%CI:1.597～27.491,P=0.009),术后高血糖(OR=3.510,95%CI:1.596～7.718,P=0.002),重症监护病房入住>72 h(OR=3.281,95%CI:1.505～7.150,P=0.003)与SSI发生相关.多因素条件Lgistic回归分析显示:手术时间>4 h(OR=3.100,95%CI:1.470～6.537,P=0.003)、切口皮下层连续缝合(OR=2.340,95%CI:1.183～4.692,P=0.015)、术后高血糖(OR=3.272,95%CI:1.427～7.505,P=0.005)是SSI的独立危险因素.结论 手术时间>4 h、切口皮下连续缝合及术后高血糖是心脏直视术后SSI发生的危险因素.     

腹膜透析患者低肌肉组织指数相关影响因素分析

目的:探讨规律腹膜透析(腹透)患者低肌肉组织指数(lean tissue index,LTI)的发生率及相关影响因素.方法:选择2019年10月至2020年5月在上海健康医学院附属嘉定区中心医院接受规律腹透治疗的患者.应用多频生物电阻抗技术测量入选患者的LTI,采集人口统计学资料、生化指标,评估患者的腹膜转运特性及透析...     

Risk factors for adverse outcomes after peritonitis-related technique failure.

BACKGROUND: Peritonitis is the leading cause of technique failure in peritoneal dialysis (PD) patients. Some patients experience recurrent ascites, encapsulating peritoneal sclerosis (EPS), and even death after catheter removal. Little is known, however, about the risk factors for such complications. METHODS: The study subjects were 117 patients that had their PD catheter removed due to peritonitis between January 2000 and June 2006. Biochemical and clinical data were reviewed retrospectively. Serum C-reactive protein (CRP) and blood and effluent white blood cell counts (WBC) were measured at baseline and at 72 hours of peritonitis. Based on adverse outcomes, patients were classified into 4 groups: non-complication (NC; n = 73), recurrent ascites (A; n = 26), EPS (E; n = 10), and death directly related to peritonitis (D; n = 8). RESULTS: Age at PD catheter removal was significantly higher in D group compared to NC group (62.0 +/- 10.6 vs 51.2 +/- 11.5 years, p < 0.05). In addition, mean PD duration was significantly longer in E group compared to NC and A groups (130.5 +/- 48.1 vs 58.8 +/- 42.4 vs 74.8 +/- 47.4 months, p < 0.01). Compared to baseline, effluent WBC was significantly decreased in NC group after 72 hours of peritonitis. In addition, serum CRP level was significantly decreased in NC and A groups, whereas it was significantly increased in D group. Multivariate analyses adjusted for age, PD duration, blood and effluent WBC, serum CRP, and micro-organisms revealed that serum CRP level at 72 hours predicted significantly the development of EPS [odds ratio (OR) 1.15, p < 0.05] and peritonitis-related death (OR 1.18, p < 0.01). In addition, PD duration (per 1 month increase: OR 1.03, p < 0.05) and age at PD catheter removal (per 1 year increase: OR 1.11, p < 0.05) were identified as significant determinants of EPS and peritonitis-related death respectively. Only effluent WBC at 72 hours was significantly associated with the development of ascites (OR 1.27, p < 0.05). CONCLUSION: Older patients with long PD duration and those with persistently elevated serum CRP levels were likely to develop complications after peritonitis-related technique failure. Our study suggests that serial measurement of CRP may be helpful in predicting the development of complications after PD catheter removal.     

视神经鞘直径预测重症脑损伤患者死亡风险的价值

目的:探讨超声测量视神经鞘直径（optic nerve sheath diameter,ONSD）对重症脑损伤患者死亡风险的预测价值。方法:本研究为前瞻性观察研究,分析2020年1月至2020年9月就诊安徽医科大学第二附属医院重症医学科的重症脑损伤患者84例。根据患者最终生存状态将其分为存活组和死亡组,比较两组患者术后...     

Risk factors for microvascular and macrovascular complications in men and women with type 2 diabetes

Objective - To evaluate the importance of risk factors for microvascular and macrovascular complications, separated by sex, in type 2 diabetes. Design - Cross-sectional surveys of diabetic patients registered with primary health services in 1995. Setting - Three community health centres in Stockholm County. Subjects - 407 subjects with type 2 diabetes in 1995. For 78 of these, data were also registered in 1992. Main outcome measures - Odds ratio (OR) by logistic regression for risk factors predicting microvascular and macrovascular complications, for age and duration in years. Results - For microvascular complications, the most important factors were in men the duration of diabetes (OR 1.13, p&lt;0.001) and in women the duration of diabetes (OR 1.08, p&lt;0.001) and age (OR 1.04, p&lt;0.05). For macrovascular complications, the most important factors were in men, age (OR 1.09, p&lt;0.001) and hypertension (OR 4.85, p&lt;0.001) and in women, age (OR 1.08, p&lt;0.001) and duration of diabetes (OR 1.08, p&lt;0.01). Conclusions - Hypertension is more important among men and the duration of diabetes among women as risk factor for macrovascular complications in type 2 diabetes.     

慢性阻塞性肺疾病患者机械通气时间的影响因素

目的 探讨影响慢性阻塞性肺疾病(COPD)患者机械通气(MV)时间的危险因素.方法 回顾性研究128例COPD合并呼吸衰竭患者插管前及通气过程中的临床指标.单凶素分析采用t检验、秩和检验及X2检验.将统计意义的变量导人多元逐步togis～e回归分析.结果 NV>7 d、14 d和21 d的患者比例分别为61%、20%和9%.MV>7 d、14 d和21 d的患者,分别与MV≤7 d、14 d和21 d的患者进行比较,在COPD病史、吸烟指数、肺功能和合并症等方面差异无统计学意义(P<0.05).多因素回归分析显示,APACHEⅡ评分是影响MV>7 d的独立危险因子(OR:2.3;95%CI:1.2～5.7,P=0.02);影响MV>21 d的危险因素是休克(OR:0.7;95%CI:1.0～1.9,P=0.04)和低白蛋白水平(OR:0.4,95%CI:0.2～0.8,P=0.003);机械通气相关性肺炎(VAP)是影响机械通气时间最重要的危险因素(P<0.05).结论 APACHEⅡ评分、血清白蛋白水平、发生休克或VAP是影响COPD患者机械通气时间的主要因素.     

乳腺癌术后引流管留置时间危险因素分析及风险预测模型研究

目的 探究影响乳腺癌患者术后引流管留置时间的危险因素并建立风险预测模型。方法 收集某三级甲等医院2018年5月—2019年4月200例在全麻下实施乳腺癌手术的患者的基本临床资料,采用单因素分析及Logistic 回归分析筛选出影响乳腺癌术后引流管留置的危险因素,建立Logistic回归预测模型,用Hosmer and Lemeshow 检验来对所建立的预测模型的拟合优度进行测验,应用ROC曲线下面积来检验模型的预测效果。结果 多因素Logistic 回归分析结果表明BMI（OR=1.337）、乳腺癌手术方式（OR=4.527）、腋窝淋巴结手术方式（OR=3.483）、负压引流方式（OR=4.518）、基础疾病（OR=6.170）、并发症（OR=2.846）均是影响乳腺癌术后引流管留置的危险因素。Hosmer and Lemeshow 检验提示预测模型拟合度为（χ²=10.539,P=0.229）;ROC 曲线下面积（AUC）为0.842,敏感性为0.815,特异性为0.750,Youden指数最大值为0.565。结论 BMI、乳腺癌手术方式、腋窝淋巴结手术方式、一次性负压引流方式、基础疾病、并发症均为影响患者术后引流管留置时间的独立危险因素。本研究所建立的预测模型价值较高,可为临床做好乳腺癌患者术后引流管留置时间的管理提供参考。     

纤维蛋白原与白蛋白比值对慢阻肺患者急性加重风险的预测价值分析

目的 分析纤维蛋白原与白蛋白比值（FAR）对慢性阻塞性肺疾病（COPD）患者急性加重风险的预测价值。方法 选取2019年11月至2021年11月在我院接受治疗的86例COPD患者作为COPD组,同时选取同期来我院健康体检的40例健康人群作为对照组。根据患者入院前1年急性加重次数将COPD患者分为急性加重风险组（n=36）和无急性加重风险组（n=50）。所有纳入对象入院后均检测血清纤维蛋白原（FIB）、白蛋白（ALB）水平,并计算FAR比值。分析比较各组基本资料、生化指标,采用受试者工作特性曲线（ROC）评估血清FAR比值对COPD患者急性加重风险的预测价值,同时采用多因素Logistic回归分析影响COPD患者急性加重风险的相关因素。结果 COPD组血清FIB、FAR水平均明显高于对照组（P<0.05）,ALB水平明显低于对照组（P<0.05）。急性加重风险组患者血清FIB、FAR水平明显高于无急性加重风险组（P<0.05）,ALB水平明显低于无急性加重风险组（P<0.05）。ROC曲线结果显示,FAR预测COPD患者急性加重风险的曲线下面积为0.806,截断值0.29,敏感度、特异度分别为89.7%、85.3%,FIB曲线下面积为0.658,截断值8.50g/L,敏感度、特异度分别为75.6%、69.9%,ALB曲线下面积为0.689,截断值30.62g/L,敏感度、特异度分别为78.4%、70.2%。多因素logistic回归模型分析结果显示,血清FIB[OR（95%CI）：3.39（1.73~6.42）]、ALB[OR（95%CI）：3.56（1.79~7.06）]、FAR[OR（95%CI）：4.04（1.70~9.59）]均为影响COPD患者出现急性加重风险的相关因素（P<0.05）。结论 FAR比值在COPD患者急性加重风险中升高,是增加COPD患者急性加重风险的相关因素之一,有望作为预测患者出现急性加重风险的有效指标。     

肺癌患者围术期并发症发生的危险因素分析

目的分析肺癌患者围术期并发症发生的高危因素,并探讨其对肺癌手术安全性的预测价值,指导围术期处理。方法回顾性分析胸外科2000年8月～2008年8月接受手术治疗的409例肺癌患者的临床资料,对可能与术后并发症发生相关的因素进行多因素logistic回归分析。结果该组患者手术死亡率为4．16％（17／409）,术后并发症发生率为12．47％（51／409）,主要并发症包括肺部感染、肺不张、心律失常、呼吸衰竭、脓胸、支气管胸膜瘘、胸腔出血等。采用多因素logistic回归分析发现：〉70岁（OR=15．335）、吸烟指数〉400支年（OR=6．108）、合并重要器官基础疾病（OR=7．973）、行全肺切除术（OR=8．165）和一秒率（FEV1．0％）≤60％（OR=1．031）是肺癌患者手术围术期并发症发生的高危因素。结论对肺癌患者术前评估上述相关因素,可初步预测术后并发症发生的概率,为患者顺利渡过围术期和提高手术的安全性提供积极的临床指导。     

SARS合并ARDS患者死亡高危因素分析

目的：了解严重急性呼吸综合征(SARS)合并急性呼吸窘迫综合征(ARDS)患者死亡的高危因素，为制定相应的防治措施作参考，以期降低病死率。方法：以我院中心ICU收治的25例SARS合并ARDS患者为对象，采用回顾性研究方法，用SPSSl0．0统计软件作Logistic回归，筛选和分析死亡的危险因素。结果：筛选出年龄、缺氧持续的时间、血小板减少、高血钠、血肌酐升高5个死亡危险因素，其相对危险度分别为1．203、1．067、111．932、26．667和111．932。结论：应重视并针对死亡的危险因素制订相应的防治措施，降低病死率。     

Morbidity and mortality risk associated with red blood cell and blood-component transfusion in isolated coronary artery bypass grafting

OBJECTIVE: Our objective was to quantify incremental risk associated with transfusion of packed red blood cells and other blood components on morbidity after coronary artery bypass grafting. DESIGN: The study design was an observational cohort study. SETTING: This investigation took place at a large tertiary care referral center. PATIENTS: A total of 11,963 patients who underwent isolated coronary artery bypass from January 1, 1995, through July 1, 2002. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Among the 11,963 patients who underwent isolated coronary artery bypass grafting, 5,814 (48.6%) were transfused. Risk-adjusted probability of developing in-hospital mortality and morbidity as a function of red blood cell and blood-component transfusion was modeled using logistic regression. Transfusion of red blood cells was associated with a risk-adjusted increased risk for every postoperative morbid event: mortality (odds ratio [OR], 1.77; 95% confidence interval [CI], 1.67-1.87; p<.0001), renal failure (OR, 2.06; 95% CI, 1.87-2.27; p<.0001), prolonged ventilatory support (OR, 1.79; 95% CI, 1.72-1.86; p<.0001), serious infection (OR, 1.76; 95% CI, 1.68-1.84; p<.0001), cardiac complications (OR, 1.55; 95% CI, 1.47-1.63; p<.0001), and neurologic events (OR, 1.37; 95% CI, 1.30-1.44; p<.0001). CONCLUSIONS: Perioperative red blood cell transfusion is the single factor most reliably associated with increased risk of postoperative morbid events after isolated coronary artery bypass grafting. Each unit of red cells transfused is associated with incrementally increased risk for adverse outcome.