1、广西医科大学学报JOURNAL OF GUANGXI MEDICAL UNIVERSITY2023 Jan;40(1)尿I-FABP在成人重症肺炎所致ARDS临床诊断和死亡率预测的应用价值*罗煜1,2,陈德和1,肖高雄1,焦秦1,佘名远1(1.巴中市中心医院呼吸与危重症学科,巴中636000;2.川北医学院临床医学院,南充637000)摘要目的:探讨尿肠型脂肪酸结合蛋白(I-FABP)在成人重症肺炎所致急性呼吸窘迫综合征(ARDS)临床诊断和死亡率预测中的应用价值。方法:收集2017年9月至2021年12月我院收治的197例重症肺炎患者作为研究对象,其中97例并发ARDS者纳入ARDS组,10
2、0例无ARDS者进展纳入非ARDS组。另根据28 d院内存活情况将ARDS组患者分为死亡亚组和存活亚组。采用酶联免疫吸附试验测定尿I-FABP水平。结果:ARDS组患者尿I-FABP水平高于非ARDS组(P0.001)。尿I-FABP水平预测重症肺炎患者发生ARDS的受试者工作特征(ROC)曲线下面积(AUC)为0.763(95%CI:0.6970.830)。死亡亚组患者尿I-FABP水平高于存活亚组(P0.001)。尿I-FABP水平升高与基线急性生理和慢性健康状况评分(APACHE)、序贯器官衰竭估计评分(SOFA)及存活者重症监护病房住院时间显著相关(P0.05)。尿I-FABP水平、基
3、线APACHE和SOFA评分是重症肺炎所致ARDS患者28 d院内死亡的独立危险因素(P0.05)。ROC曲线分析结果显示,尿I-FABP水平预测ARDS患者28 d院内死亡的AUC为0.879(95%CI:0.8120.947),联合APACHE或SOFA的AUC值大于二者单独预测的AUC值(P0.05)。结论:重症肺炎所致的ARDS患者尿I-FABP水平普遍升高,I-FABP有望成为ARDS临床诊断以及28 d院内死亡率预测的标志物。关键词肠型脂肪酸结合蛋白;重症肺炎;急性呼吸窘迫综合征;死亡率中图分类号:R562.2文献标志码:A文章编号:1005-930X(2023)01-0133-0
4、7DOI:10.16190/ki.45-1211/r.2023.01.021Application value of urinary I-FABP in the clinical diagnosis and mortality prediction of ARDS caused by severe pneumonia in adultsLuo Yu1,2,Chen Dehe1,Xiao Gaoxiong1,Jiao Qin1,She Mingyuan1.(1.Department of Respiratory and CriticalCare Medicine,Bazhong Central
5、Hospital,Bazhong 636000,China;2.Clinical Medical College of North Sich-uan Medical College,Nanchong 637000,China)AbstractObjective:To investigate the value of urinary intestinal-fatty acid binding protein(I-FABP)in theclinical diagnosis and mortality prediction of acute respiratory distress syndrome
6、(ARDS)caused by severe pneu-monia in adults.Methods:A total of 197 patients with severe pneumonia admitted to our hospital from Septem-ber 2017 to December 2021 were selected as the study subjects.Among them,97 patients complicated with AR-DS were included in the ARDS group,and 100 patients without
7、ARDS progression were included in the non-AR-DS group.In addition,the ARDS patients were divided into death subgroup and survival subgroup according tothe survival in hospital for 28 days.The level of serum I-FABP was determined by enzyme-linked immunosor-bent assay.Results:The level of urinary I-FA
8、BP in ARDS group was higher than that in non-ARDS group(P0.001).The area under receiver operating characteristic(ROC)curve(AUC)of urinary I-FABP level for predict-ing ARDS in severe pneumonia patients was 0.763(95%CI:0.697-0.830).The level of urinary I-FABP in thedeath subgroup was higher than that
9、in the survival subgroup(P0.001).The increase of urinary I-FABP levelwas correlated with the baseline Acute Physiology and Chronic Health Evaluation (APACHE),SequentialOrgan Failure Assessment(SOFA)and the length of stay in intensive care unit of the survivors(P0.05).Uri-nary I-FABP level,baseline A
10、PACHE and SOFAscore were independent risk factors for 28 d in-hospi-*基金项目:四川医学会青年创新课题基金(No.Q20066)通信作者,E-mail:收稿日期:2022-09-29 133广西医科大学学报2023 Jan;40(1)tal death in patients with ARDS caused by severe pneumonia(P0.05).ROC curve analysis showed that theAUC of 28 d in-hospital death in ARDS patients pr
11、edicted by urinary I-FABP level was 0.879(95%CI:0.812-0.947),and the AUC value of urinary I-FABP combined with APACHE or SOFA was greater than that predict-ed by the two alone(P0.05).Conclusion:The level of urinary I-FABP in patients with ARDS caused by severepneumonia generally increases,and I-FABP
12、 is expected to become a reliable marker for the clinical diagnosis ofARDS and the prediction of 28 d in-hospital mortality.Keywordsintestinal-fatty acid binding protein;severe pneumonia;acute respiratry distress syndrme;mortality急性呼吸窘迫综合征(ARDS)是一种急性弥漫性和炎症性肺损伤,通常由肺炎等感染引起,与急性呼吸衰竭、生活质量受限和高死亡率密切相关1-2。早
13、期病原鉴定和临床干预对于降低ARDS患者死亡率和改善预后至关重要3。肠型脂肪酸结合蛋白(I-FABP)是一种在小肠和大肠的成熟肠细胞中表达的胞浆蛋白,参与脂肪酸的摄取和运输4。尿I-FABP的基础水平代表上皮细胞的生理状态,其水平增加可能表明肠上皮细胞受损5-6。由于肠细胞对缺血或缺氧非常敏感,在脓毒症、炎症性肠病以及其他一些重症疾病中,尿I-FABP浓度升高已被证实是疾病再激活、预后不良和临床并发症的可靠生物标志物和预测因子6-8。然而,尿I-FABP对AR-DS患者预后的影响尚不清楚。本研究调查了重症肺炎引起的ARDS患者尿I-FABP水平变化及其与死亡风险的关系,以期为ARDS的准确诊断
14、和精准医疗提供依据。1对象与方法1.1研究对象收集2017年9月至2021年12月我院急诊、重症监护病房(ICU)收治的197例重症肺炎患者。纳入标准:符合美国传染病协会和美国胸科学会制定的重症肺炎相关诊断标准9,满足以下3个或更多标准:动脉氧分压/吸入氧分压比值(PaO2/FiO2)33.25 kPa;呼吸频率30次/min;血尿素氮20mg/dL;非其他原因引起的白细胞减少(白细胞计数0.4109/L)、血小板减少(血小板计数100109/L)、体温过低(36);意识模糊/定向障碍低血压需要积极液体复苏;在充分的液体复苏后接受治疗剂量的加压药治疗;或与CAP诊断一致的多叶浸润的影像学发现。
15、需要ICU管理的严重程度足够的肺炎患者和至少满足一个严重程度标准的患者,如接受机械通气支持或感染性休克并需要血管加压药,也被纳入研究。排除标准:包括怀孕、晚期疾病(任何类型的恶性肿瘤、终末期肝病或肾病)、严重免疫抑制和拒绝知情同意以及住院期间发生肺炎或延迟入住ICU超过48 h。ARDS进展定义为重症肺炎患者入院7 d内发生ARDS:呼吸道症状急性发作、双侧肺浸润、超声心动图排除左房高压、心源性肺水肿、严重低氧血症,PaO2/FiO226.6 kPa。共有197例重症肺炎患者被纳入研究,包括97例ARDS患者(ARDS组,男61例,女36例,年龄1987岁)和100例未进展至ARDS的患者(非
16、ARDS组,男58例,女42例,年龄2194岁)。本研究经医院医学伦理委员会审核批准,且患者签署知情同意书。1.2观察指标登记受试者的一般人口统计学数据、共病率和相关实验室结果。记录每日临床变量,以计算急性生理学和慢性健康评估(APACHE)评分和序贯器官衰竭评估(SOFA)评分。在患者住院期间,根据临床参数和柏林标准(ARDS定义工作组,2012年)10评估ARDS的存在情况。此外,对28 d死亡率进行随访以评估预后。采用盲法进行观察收集资料,以避免潜在的偏差。在ICU入院24 h内采集尿样,离心分离尿上清样本。采用酶联免疫吸附测定试剂盒(北京百普赛斯生物科技股份有限公司)检测尿I-FABP水平。1.3统计学方法采用SPSS 26.0统计软件处理数据。正态分布的连续变量以均数标准差(x s)描述,组间比较采用独立样本t检验;偏态分布资料以中位数(四分位数间距)M(P25P75)表示,组间比较采用Mann-Whitney U检验。分类变量资料以率或者构成比进行描述,组间比较采用卡方检验。采用受试者工作特征曲线(ROC曲线)分析尿I-FABP水平对于重症肺炎所致ARDS的临床诊断价值。相