过敏性紫癜患儿尿系列酶改变对早期肾脏功能的评价

目的：探讨测定小儿过敏性紫癜(HSP)尿系列酶作为评价肾功能早期指标的临床意义。方法：检测HSP患儿肾小球功能及测定尿酶γ-谷氨酰转移酶(GGT)、碱性磷酸酶(ALP)、N-乙酰-β-D氨基葡萄糖苷酶(NAG)、β-半乳糖苷酶(GAL)、GAL/NAG,结合临床分析患儿肾脏受累情况及上述指标的临床价值。结果：尿酶NAG,GGT,ALP,GAL/NAG正常组与患儿组比较差异有显著性。GAL在两组之间差异无显著性。皮肤型与混合型的GGT,ALP,NAG差异无显著性,而皮肤型、混合型与紫癜肾组比较差异均有显著性意义。结论：HSP患儿尿素氮、肌酐在正常范围时,肾小管功能已有损害,尿系列酶可以作为评价早期肾功能损害的指标。     

尿系列酶测定对新生儿硬肿症肾功能的评价

目的　探讨新生儿硬肿症尿系列酶的改变作为评价肾小管功能的指标。方法　检测新生儿硬肿症尿系列酶NAG、GAL、GGT、ALP、LDH活性 ,与正常组进行对照 ,同时检测血BUN ,Bcr作为肾小球功能的指标 ,中、重度硬肿者与尿酶值进行相关性分析。结果　尿酶NAG、GAL、ALP、LDH酶活性在新生儿硬肿症组与对照组比较明显增高 ,有显著差异 (P <0 0 1) ,GGT酶无显著差异 (P >0 0 5 ) ;三种不同程度新生儿硬肿症时尿酶NAG、GAL、ALP、LDH均出现统计学差异 ;肾功能血BUN、Bcr值增高与尿酶间存在正的直线相关关系。结论　尿酶NAG、GAL、ALP、LDH活性不同程度升高 ,表明不同程度新生儿硬肿症肾小管功能受累 ,当肾小球功能受损时 ,其与肾小球功能受损成正比     

尿系列酶检测对新生儿肺炎肾功能的评价

目的　 探讨新生儿肺炎时尿系列酶的改变作为评价肾小管功能的指标。 方法 　检测早产、足月新生儿肺炎尿系列酶NAG、GAL、GGT、ALP、LDH活性 ,与正常组进行对照。同时检测血BUN ,SCr作为肾小球功能的指标 ,GAL/NAG比值动态观察作为肾功能恢复的指标。 结果 　早产儿组尿酶NAG、GAL、GGT、ALP、LDH活性与对照组比较明显增高 ,有显著差异 (P <0 0 0 1) ,足月儿组尿酶NAG、ALP、LDH活性与对照组比较明显增高 ,有显著差异 (P <0 0 0 1)。尿酶GAL/NAG比值恢复期与对照组比较有统计学差异 (P <0 0 5 )。 结论 　尿酶NAG、GAL、GGT、ALP、LDH活性增高可作为新生儿肺炎时肾小管功能受累的指标 ,GAL/NAG比值升高提示新生儿肺炎肾功能的恢复     

新生儿窒息后肾血流变化与尿酶的关系

目的 探讨新生儿窒息后肾动脉血流变化与尿酶的关系.方法 采集71例窒息新生儿及20例正常新生儿的新鲜尿液测定尿酶[N-乙酰-β-D氨基葡萄糖苷酶(NAG)、β-半乳糖苷酶(GAL)、碱性磷酸酶(ALP)、γ-谷氨酰转移酶(GGT)],采集静脉血检测尿素氮(BUN)、肌酐(Cr)及出生后第1、3、7天肾动脉血流参数[收缩期峰值流速(PSFV)、阻力指数(RI)、舒张末血流速度(EDFV)、搏动指数(PI)].结果 窒息新生儿尿中NAG、GAL、ALP、GGT均明显高于正常组(P<0.05),重度窒息组NAG、GAL、ALP、GGT明显高于轻度窒息组(P<0.01).窒息组肾动脉EDFV在日龄第1、3、7天均低于正常组(P<0.05),各日龄组肾动脉RI和PI均高于正常组(P<0.05).EDFV与NAG、GAL、ALP、GGT呈负相关(P<0.01),RI、PI与NAG、GAL、ALP、GGT呈正相关(P<0.01).结论 肾血流检测较尿酶检测省时、方便、影响因素少,且可连续观察,通过肾血流检测可估计尿酶的高低;同样尿酶的高低也可反应肾血流情况,判断有无肾血管痉挛、肾缺血,为早期使用肾血管扩张药物提供依据.     

尿系列酶测定对高胆红素血症新生儿肾小管功能的评价

目的探讨尿系列酶的改变作为评价高胆红素血症(高胆)新生儿肾小管功能的指标.方法检测38例高胆新生儿尿系列酶(NAG、GAL、GGT、ALP、LDH)活性与50例正常对照;其中32例不同程度高胆患儿进行治疗前后尿系列酶对照分析.结果高胆新生儿尿酶NAG、GAL、ALP、LDH活性与对照组比较明显增高,出现显著性差异(P＜0.01);三组不同程度高胆新生儿NAG、ALP、LDH活性比较均出现统计学差异(P＜0.01),治疗后轻、中度黄疸ANG、ALP、LDH活性与治疗前比较明显减低,出现显著性差异(P均＜0.05),重度黄疸NAG、ALP、LDH与治疗前比较无明显差异,P＞0.05;血清总胆红素水平与NAG、ALP、LDH呈正相关关系.结论尿系列酶改变可以反映高胆新生儿时肾小管功能不同程度的受损;轻、中度高胆新生儿肾小管功能受损是可逆的,重度肾损害恢复慢.     

尿系列酶测定对高胆红素血症新生儿肾小管功能的评价

目的 探讨尿系列酶的改变作为评价高胆红素血症(高胆)新生儿肾小管功能的指标。方法 检测38例高胆新生儿尿系列酶(NAG、GAL、GGT、ALP、LDH)活性与50例正常对照;其中32例不同程度高胆患儿进行治疗前后尿系列酶对照分析。结果 高胆新生儿尿酶NAG、GAL、ALP、LDH活性与对照组比较明显增高,出现显著性差异(P<0.01);三组不同程度高胆新生儿NAG、ALP、LDH活性比较均出现统计学差异(P<0.01),治疗后轻、中度黄疸ANG、ALP、LDH活性与治疗前比较明显减低,出现显著性差异(P均<0.05),重度黄疸NAC、ALP、LDH与治疗前比较无明显差异,P>0.05;血清总胆红素水平与NAG、ALP、LDH呈正相关关系。结论 尿系列酶改变可以反映高胆新生儿时肾小管功能不同程度的受损;轻、中度高胆新生儿肾小管功能受损是可逆的,重度肾损害恢复慢。     

紫癜性肾炎患儿免疫球蛋白G亚类水平与早期肾损害的相关性

目的探讨紫癜性肾炎(HSPN)患儿免疫球蛋白G(IgG)亚类与尿酶、尿微量蛋白的相关性,分析其在HSPN发生中的作用及其在诊断中的意义。方法采用酶联免疫吸附法检测28例HSPN患儿及20例正常儿童IgG亚类水平;采用免疫散射速率比浊法测定尿4项微量蛋白;采用碱性苦味酸速率法测定尿系列酶,经多元线性回归法分析相关性。结果28例HSPN患儿IgG1和IgG2明显低于正常对照组(P<0.01),其余变化不明显。HSPN组IgG1与尿微量清蛋白(MA)、碱性磷酸酶(ALP)呈明显负相关性,IgG2与转铁蛋白(TF)、α1-微球蛋白(α1-M)呈明显负相关性,IgG4与MA、IgG、α1-M呈明显负相关性。结论IgG亚类失调尤其是IgG1、IgG2下降参与肾炎的发病,与几种尿酶、尿微量蛋白呈明显负相关性,它可反映疾病严重程度,在临床诊断中具有一定的价值。     

小儿全身炎症反应综合征早期肾损伤敏感指标的研究

目的探讨小儿全身炎症反应综合征(SIRS)早期肾损伤的敏感指标,为早期干预提供理论依据。方法以2000年12月至2001年11月广州市儿童医院儿科病房45例SIRS患儿及30名健康儿童为研究对象,尿β2微球蛋白(β2-MG)、白蛋白(ALB)采用化学发光酶免疫分析法(CLEIA)测定,尿微量IgG、血、尿视黄醇结合蛋白(RBP)采用酶联免疫吸附比色法(ELISA)测定,尿N-α-乙酰基-β-D-氨基葡萄糖苷酶(NAG)采用比色法测定。结果实验组与对照组比较,尿ALB、β2-MG、RBP、NAG、血β2-MG、血RBP明显升高,有显著性差异。结论尿ALB、β2-MG、RBP、NAG、血β2-MG、血RBP为SIRS患儿早期肾损伤的敏感指标,SIRS患儿早期机体反应较轻时已存在早期肾损害并且病变累及肾小球和肾小管。     

小儿肾小球疾病时尿酶测定及其临床意义

检测尿酶N—乙酰—β—D氨基葡萄糖苷酶(NAG)、β—半乳糖苷酶(GAL)、γ—谷氨酰转移酶(GGT)、碱性磷酸酶(ALP)、乳酸脱氢酶(LDH)等尿系列酶的变化，作为评价小儿肾小球疾病时肾小管功能的指标，现报告如下。     

泌尿生殖系统疾病

990805 179例住院患儿尿NAG、y一GT、Cre的检测及其意义/黄沉…//福建医药杂志一1995,20(z)一22一If 为了解儿科住院患儿的肾功能受损情况,本文检测了179例患儿常见病住院患儿的尿NAG、r一GT、Cre,并与30例健康儿童进行对照。结果显示,各疾病组患儿尿NAG、r一GT.均比健康儿童升高。用酶活性与尿肌配比值NAG/Cr(U/g·Cr)、r一GT/Cr(U/g·Cr)表示酶活性时,所有患儿尿NAG均显著高于正常对照组,尿r一GT高于正常组仅见于神经、呼吸、血液系统疾病及急性肠炎组患儿,这表明NAG在反映肾功能受损方面比r一GT敏感。作者认为,患各种疾…     

Increased urinary excretion of renal N-acetyl-beta-glucosaminidase in hypercalciuria

Urinary excretion of N-acetyl-beta-glucosaminidase (NAG), a lysosomal enzyme, was examined in 33 children with hypercalciuria. Urinary NAG excretion in 13 healthy children was 5.84 +/- 9.35 nmole/hr/mg of creatinine (NAG/Cr) (mean +/- SD) compared with 35.61 +/- 42.04 nmole/hr/mg of creatinine in 23 children with renal hypercalciuria, and 28.99 +/- 13.69 nmole/hr/mg of creatinine in ten children with absorptive hypercalciuria. In children with renal hypercalciuria, NAG/Cr excretion was not statistically different between children with either urolithiasis or hematuria without calculi. In six children with renal hypercalciuria, no significant change in NAG/Cr excretion occurred after a mean duration of 25 weeks of hydrochlorothiazide therapy although urinary calcium to creatinine ratios (UCa/Cr) decreased from 0.24 +/- 0.11 to 0.16 +/- 0.11. We conclude that increased urinary calcium excretion produces renal tubular injury and that the renal injury may not be reversed by short-term alterations in urinary calcium excretion.     

尿视黄醇结合蛋白和N-乙酰-β葡萄糖苷酶对早产儿肾功能的评价意义

目的 分析尿视黄醇结合蛋白(RBP)、尿N-乙酰-β葡萄糖苷酶(NAG)对评价早产儿肾功能的临床意义.方法 受选新生儿89例,分为早产儿窒息组(18例)、早产儿非窒息组(25例)和足月儿对照组(46例).观察所选对象生后48h内晨尿的RBP和NAG水平,分别与尿肌酐(Cr)相比(以RBP/Cr和NAG/Cr表示);观察血肌酐和血尿素氮,以及非窒息早产儿在生后0~48h,~96h,~168h的RBP/Cr、NAG/Cr变化情况.结果 早产儿窒息组的尿RBP/Cr水平[(0.951±0.629)g/mol]高于非窒息组[(0.389±0.281)g/mol]和足月儿对照组[(0.119±0.081)g/mol],3组间比较差异有统计学意义(P<0.05);非窒息组高于足月儿对照组(P<0.05).早产儿窒息组和非窒息组的尿NAG/Cr比值均高于足月儿对照组,差异有统计学意义(P<0.05),但前两者比较差异无统计学意义(P>0.05).3组间的血肌酐和尿素氮比较差异无统计学意义(P>0.05).早产儿非窒息组尿RBP/Cr与胎龄和日龄均无线性相关(P>0.05),而NAG/Cr与胎龄呈线性负相关(r=-0.625,P<0.05),与日龄呈正相关(P<0.05).结论 尿RBP/Cr和NAG/Cr比值有助于评估早产儿肾功能,前者对窒息损害较后者敏感,后者受胎龄影响更大.

Abstract：

Objective To investigate the clinical value of urinary retinol binding protein(RBP) and N-acetyl-β-glucosaminidase(NAG) for evaluating renal function in preterm neonate.Methods 89 neonates in our NICU were selected,divided into three groups:the asphyxial preterm group (18 cases),the no-asphxial preterm group (25 cases),and the control group (46 term infants without asphyxia).All objects were detected the urinary RBP,NAG and creatinine(Cr).The levels of RBP/Cr and NAG/Cr and blood urea nitrogen(BUN),Cr were observed within 48h after birth after birth.The fluctuations of urinary RBP/Cr and NAG/Cr in no-asphxial preterm group also were observed in 0~48h,~96h,~168h after birth respectively.Results The urinary RBP/Cr levels in asphyxial preterm group [(0.951±0.629)g/mol] were higher than those in no-asphxial preterm group[(0.389±0.281)g/mol] and the control group[(0.119±0.081)g/mol](P<0.05).The urinary RBP/Cr levels in no-asphxial preterm group were also significantly higher than those in the control group(P<0.05).The levels of urinary NAG/Cr in the asphyxial and no-asphxial preterm groups were both higher than those in the control group(P<0.05),but there was no difference betwteen the former two groups(P>0.05).The levels of serum Cr and BUN were no significant difference in the three groups(P>0.05).The urinary RBP/Cr level had non-linear correlation with either postnatal or gestational age in no-asphyxial preterm group.While the urinary NAG/Cr levels negative correlated with the gestational age(r=-0.625,P<0.05).And the correlation between the urinary NAG/Cr and postnatal age was postive(P<0.05).Conclusion The determination of urinary NAG/Cr and RBP/Cr provides a sensitive and reliable method to evaluate the renal function of neonates,especially in preterm infants.The RBP/Cr is affected by asphyxia more than NAG/Cr,which is rather correlated with gestational age.     

Values for urinary β-microglobulin and N-acetyl-β-D-glucosaminidase in normal healthy infants

Abstract Background : Measuring urinary β₂ microglobin (B2M) and N -acetyl-β-D-glucosaminidase (NAG) excretion is widely used as a valuable clinical tool in assessing renal tubular lesions. However, few data are available on normal values for urinary excretion of B2M and NAG in infancy.
Methods : Urinary B2M and NAG were measured in healthy infants. The logarithmic values of urinary B2M, NAG. B2M/creatinine ratio and NAG/creatinine ratio were distributed almost normally and reference ranges were calculated from the logarithms of the observed values.
Results : The levels of urinary B2M and B2M/creatinine ratio were highest in the 1-month-old group, followed by a decrease during the first 3 months. Urinary B2M excretions in the 3-monfh-old group showed rather lower levels than those of the 12-month-old and 36-month-old groups. Although urinary NAG excretions were almost constant throughout all groups, urinary NAG/creatinine ratio decreased gradually until 3 years of age.
Conclusions : We suggest that these reference ranges are of importance in evaluating tubular damage due to a variety of renal diseases in infancy.     

儿童重度肾积水肾造瘘术后尿蛋白水平与肾功能的关系

目的探讨儿童重度肾积水肾造瘘术后肾盂尿液中分子量大小不等的尿微量白蛋白(mAlb)、α1微球蛋白(α1-MG)、β2微球蛋白(β2-MG)、转铁蛋白(Trf)、免疫球蛋白G(IgG)的改变及其临床意义,分析其与肾功能的关系。方法收集2017年3月至2020年10月由浙江大学医学院附属儿童医院泌尿外科收治的17例单侧重度肾积水行肾造瘘术患者的临床资料。研究对象在同一时间段内接受肾核素扫描评估分肾功能(differential renal function,DRF)及经皮肾穿刺造瘘术,留取肾盂尿液行尿蛋白检测。以DRF<22.1%和DRF≥22.1%将造瘘3个月后的17例患者分为低分肾功能组(n=11)和高分肾功能组(n=6),分析两组患侧肾盂尿液中尿mAlb/Cr、α1-MG/Cr、β2-MG/Cr、Trf/Cr、IgG/Cr、(mAlb+Trf+IgG)/Cr、(α1-MG+β2-MG)/Cr以及造瘘3个月前后患侧肾盂尿液中尿mAlb/Cr、α1-MG/Cr、β2-MG/Cr、Trf/Cr、IgG/Cr、(mAlb+Trf+IgG)/Cr、(α1-MG+β2-MG)/Cr及分肾功能的变化,并分析各蛋白与分肾功能的相关性。结果肾穿刺造瘘,3个月后低分肾功能组(DRF<22.1%)中mAlb/Cr、α1-MG/Cr、(mAlb+Trf+IgG)/Cr、(α1-MG+β2-MG)/Cr明显高于高分肾功能组(DRF≥22.1%),P值分别为0.035、0.005、0.035、0.002。肾盂造瘘3个月后患肾DRF显著改善(P<0.01),患肾尿液中α1-MG/Cr、IgG/Cr、(α1-MG+β2-MG)/Cr明显降低(P值分别为0.025、0.035、0.022),患肾DRF与α1-MG/Cr存在负相关(r=-0.436,P<0.05)。结论儿童重度肾积水肾造瘘术后肾功能损害越严重,肾小球及肾小管损伤越严重。肾盂造瘘能明显改善儿童重度肾积水分肾功能及肾小球基底膜膜孔构型,肾功能恢复主要是肾小管功能恢复。尿α1-MG可以作为评估肾小管功能恢复的敏感指标,患肾肾盂尿液α1-MG的测定是小儿重度肾积水患肾功能评价的一项有临床价值的指标。     

肾病综合征患儿血清抗增殖蛋白水平

目的研究肾病综合征患儿血清抗增殖蛋白(prohibitin,PHB)蛋白水平及其在肾小管间质早期损伤中的意义。方法应用Western blot对36例原发性肾病综合征患儿血清进行PHB蛋白水平检测,同期正常体检儿童30例为对照组。同时检测两组血清肌酐(Scr)、血尿素氮(BUN)、尿微量蛋白系列[白蛋白/肌酐(ALBU/Cr)、N-乙酰β-D-葡萄糖苷酶/肌酐(NAGU/Cr)、免疫球蛋白G/肌酐(IgGU/Cr)、α1微球蛋白/肌酐(α1-MU/Cr)等]。肾小球及肾小管间质损伤评分参照Katafuchi半定量法进行。结果正常对照组儿童血中未检测到PHB蛋白,肾病综合征患儿血PHB蛋白水平不同程度增高(0.203±0.032比0±0,P<0.05)。伴增生性病变肾病综合征患儿血PHB水平明显高于非增生性患儿。血PHB水平与肾小管间质损伤程度以及肾小球损伤程度均呈明显正相关(r=0.868、0.753,P均<0.001);患儿血PHB水平与尿微量蛋白NAG、IgG呈正相关(r=0.586、0.341,P均<0.001)。结论肾脏疾病患儿血PHB表达明显增高,而且血PHB水平与肾小球及肾小管间质损伤程度明显相关...     

Glomerular dysfunction, independent of tubular dysfunction, induced by antineoplastic chemotherapy in children

BACKGROUND: For the purpose of studying renal side-effects induced by antineoplastic agents, the authors examined glomerular injury as well as tubular injury of patients with chemotherapy. METHODS: Thirteen patients underwent a combined total of 64 courses of chemotherapy. Urinary albumin, beta2-microglobulin (beta2-MG), N-acetyl-beta-glucosaminidase (NAG) and urinary protein were measured before and serially after chemotherapy. RESULTS: The values of albumin/creatinine (albumin/cre) ratio and beta2-MG/creatinine (beta2-MG/cre) ratio after chemotherapy were higher than those before chemotherapy (P <0.01). NAG/creatinine (NAG/cre) ratio and creatinine clearance (Ccr) were not different. These were also examined before the next course of chemotherapy and were compared with those of control children. Albumin/cre ratio was significantly different (P <0.01). beta2-MG/cre ratio and NAG/cre were not different. Furthermore, in patients with normal beta2-MG/cre, the albumin/cre ratio was significantly higher than in control children. CONCLUSIONS: These results indicate that antineoplastic agents can not only induce tubular dysfunction but also glomerular dysfunction, which is persistent and independent of tubular dysfunction.     

过敏性紫癜患儿早期肾损害的实验室检查及干预

目的 探讨过敏性紫癜( Henoch-Schonlein purpura,HSP)患儿早期肾损害诊断的实验室指标及早期干预的临床疗效.方法 对143例多次尿常规检查正常的HSP患儿进一步检测尿微量蛋白[免疫球蛋白G(IgG)、微量白蛋白(MA)、转铁蛋白(TRF)、a1-微球蛋白(α1-MG)、β2-微球蛋白(β2-MG)]以及尿酶[N-乙酰-β-D氨基葡萄糖苷酶(NAG),y-谷氨酰转肽酶(y-GT)]的含量.采用对比研究方法,将131例检查异常的HSP患儿随机分成两组(对照组65例、干预组66例).两组均给予甲氰咪胍、氯雷他定、钙剂等综合治疗,干预组66例在综合治疗的基础上加用小剂量肝素微量泵持续定时静脉滴注及甘利欣口服治疗,对照组65例未给予其他治疗.结果 143例尿常规检查正常的HSP患儿中尿微量蛋白和尿酶异常131例(91.61％),干预组治疗2个月、4个月尿微量蛋白、尿酶各项指标均较治j前降低,差异有统计学意义(P＜0.01).对照组治疗2个月仅尿β2-MG、NAG、y-GT 3项指标降低,差异有统计学意义(P＜0.01),治疗4个月尿微量蛋白、尿酶各项指标均较治疗前降低,差异有统计学意义(P＜0.01).干预组治疗2个月、4个月尿微量蛋白、尿酶各项指标均较对照组低,差异有统计学意义(P ＜0.05或P＜0.01).尿IgG、MA、TRF 、NAG恢复较快,干预组治疗4个月时已基本接近正常,而尿α1-MG、β2-MG、γ-GT恢复较慢,干预组治疗4个月时仍有轻重不一的异常.两组治疗4个月时,对照组尿常规异常率高于干预组(36.92％ vs 6.10％),差异有统计学意义(P＜0.05).结论 尿微量蛋白及尿酶7项指标的联合检测是早期诊断HSP肾损害的良好指标.应用肝素钠、甘利欣对其进行早期干预,能有效预防肾损害,延缓疾病进展.对HSP肾损害须强调早期诊断及早期干预.     

Comparison of Urinary Biomarkers for Early Detection of Acute Kidney Injury After Cardiopulmonary Bypass Surgery in Infants and Young Children

Acute kidney injury (AKI) is a potential complication for children with congenital heart disease (CHD) after cardiopulmonary bypass (CPB) surgery. This study was designed to investigate and compare the predictive values of urinary biomarkers for AKI after CPB surgery in infants and young children and to determine the optimal timing of testing and the cutoff value for each biomarker. The study prospectively enrolled 58 CHD children 3 years of age or younger who were undergoing CPB surgery. Urinary neutrophil gelatinase-associated lipocalin (NGAL), interleukin-18 (IL-18), microalbumin (MA), N-acetyl-ß-D-glucosaminidase (NAG), α1-microglobulin (α1-MG), and creatinine (UCr) were measured at baseline and at various time points after surgery. Children who experienced AKI had more complex cardiac surgical procedures as evaluated by Risk Adjustment for Congenital Heart Surgery 1 (RACHS-1), longer CPB and aortic clamping times, and worse clinical outcomes than those who did not. In the AKI group, all five urinary biomarkers increased substantially and peaked at 4 h after surgery. In contrast, in the non-AKI group, they increased slightly or had no significant changes during the first 24 h. All the biomarkers had the best predictive performances at 4 h after surgery. At this time point, NAG had the minimum area under the curve (AUC) (0.747), which was significantly lower than that of the others (AUC, 0.82–0.85; P < 0.05). The optimal cutoff value of each biomarker was 290 ng/mg UCr for NAGL, 1,477 pg/mg UCr for IL-18, 400 mg/g UCr for MA, 225 U/g UCr for NAG, and 290 mg/g UCr for α1-MG. In conclusion, urinary NGAL, IL-18, MA, and α1-MG had similar predictive performances for the early detection of AKI after CPB surgery in infants and young children.     

婴儿先天性心脏病体外循环术后肾损伤分析

目的：探讨婴儿先天性心脏病（简称先心病）体外循环（CPB）术后肾损伤情况。方法：选取我院2009年10月至2010年7月期间CPB下行先心病手术的婴儿40 例，分别于转流前、手术结束时、术后2 h、术后6 h、术后24 h用酶联免疫吸附法（ELISA）检测血清肿瘤坏死因子-α（TNF-α）、白细胞介素-6（IL-6）、半胱氨酸蛋白酶抑制剂C (CysC)和尿N-乙酰-β-D氨基葡萄糖苷酶(NAG)浓度。常规生化方法检测术前及术后血清肌酐（Cr）及尿素氮（BUN）浓度。结果：术前与术后血清Cr及BUN均在正常范围内；血清TNF-α、IL-6和尿NAG浓度在CPB后均有显著性升高（P<0.05）。相关性分析提示血清TNF-α分别与尿NAG、血清CysC呈正相关（r分别为0.195，0.190，均P<0.05），血清IL-6与尿NAG亦呈正相关（r=0.278，P<0.01）；血清CysC和尿NAG检测出肾损伤的阳性率显著高于血清Cr或BUN(均P<0.01)。结论：CPB能引起婴儿急性肾损伤，可能与血清中TNF-α和IL-6的浓度增高相关。血清CysC和尿NAG可作为反映肾功能变化较敏感的指标。