血清淀粉酶和脂肪酶联合检测在急性胰腺炎诊断中的应用

目的：分析血清淀粉酶（AMY）和脂肪酶（LPS）检测方式在急性胰腺炎诊断中的价值。方法选取2010年5月至2012年5月收治的急性胰腺炎患者50例,同时选取健康受检者50例作为对照组,行AMY与LPS检测,分析AMY和LPS检测的结果,以及不同检测方式用于诊断的灵敏度、准确度、特异度。结果 AMY 与 LPS 水平由高到低为：重度急性胰腺炎（SAP）组、轻度急性胰腺炎（MAP）组、对照组;检测准确度、特异度以及灵敏度的比较：AMY、LPS联合检测与单测AMY、LPS比较各诊断效能指标均明显更高,差异有统计学意义（P＜0．05）;且LPS与AMY检测相比,以上各诊断指标值均更高,差异有统计学意义（P＜0．05）。结论 AMY联合LPS检测方式在诊断急性胰腺炎中,具有显著的应用价值,值得积极推广。     

血清淀粉酶和脂肪酶测定在急性胰腺炎诊断中的价值

目的分析血清淀粉酶与脂肪酶检测在急性胰腺炎诊断中的价值,为临床治疗提供诊断信息。方法选取2015年1月至2016年1月在利川市人民医院治疗的62例急性胰腺炎患者作为研究对象,所有患者均进行了血清淀粉酶、脂肪酶检测,统计检测结果的阳性率以及血清淀粉酶与脂肪酶对急性胰腺炎的诊断性能。结果脂肪酶检测阳性率为80.65%(50/62),血清淀粉酶检测阳性率为67.74%(42/62)。两种指标联合检测阳性率为95.16%(59/62),明显高于两项指标单独检测,差异有统计学意义(P0.05)。脂肪酶检测灵敏度为91.8%,特异度为96.5%;血清淀粉酶检测灵敏度为92.1%,特异度为89.6%。两项指标联合检测灵敏度和特异度分别为95.6%、98.7%,灵敏度明显高于两项指标单独检测,差异有统计学意义(P0.05)。结论血清淀粉酶与脂肪酶联合检测提高了诊断的灵敏度,值得推广使用。     

血清淀粉酶和脂肪酶联合检测在急性胰腺炎诊断中的应用

目的分析血清淀粉酶(AMY)和脂肪酶(LPS)检测方式在急性胰腺炎诊断中的价值。方法选取2012年1月至2014年2月收治的100例急性胰腺炎患者和100例健康体检者行AMY与LPS检测,分析检测结果及其灵敏度、准确度、特异度。结果重度急性胰腺炎组与轻度急性胰腺炎组患者的AMY、LPS水平高于对照组,差异有统计学意义(P0.05);重度急性胰腺炎组AMY、LPS水平比轻度急性胰腺炎组高,差异有统计学意义(P0.05);AMY、LPS联合检测的准确度、特异度、灵敏度高于两者单独检测结果。结论 AMY联合LPS检测可以为急性胰腺炎提供重要的诊断依据。     

血清淀粉酶和脂肪酶联合测定在急性胰腺炎诊断中的意义

目的探讨血清淀粉酶(AMY)和脂肪酶(LPS)测定在急性胰腺炎诊断中的价值。方法对51例急性胰腺炎患者、418例其他原因所致急腹症患者和78例健康对照组人员进行血清淀粉酶和脂肪酶测定。结果 51例急性胰腺炎患者中,AMY和LPS升高的敏感性分别为86.3%和92.2%。418例非急性胰腺炎的急腹症患者中,AMY、LPS升高和二者均升高的特异性分别为90.4%、91.7%和100%。结论联合测定血清AMY和LPS可提高急性胰腺炎诊断的敏感性和特异性,对急性胰腺炎的快速诊断具有重要意义。     

血清淀粉酶和脂肪酶联合测定在急性胰腺炎诊断中的意义

目的 探讨血清淀粉酶（AMY）和脂肪酶（LIP）测定在急性胰腺炎诊断中的价值。方法 对54例急性胰腺炎患者、58例胆结石患者、47例肾结石患者和50例健康对照组人员进行血清淀粉酶（AMY）和脂肪酶（LIP）测定。结果 54例急性胰腺炎中血清淀粉酶和脂肪酶升高的敏感性分别为87．0％和92．6％；联合测定AMY和LIP单项指标阳性率为98．1％；105例非急性胰腺炎患者中，AMY阳性的有12例，LIP阳性的有10例，AMY和LIP的特异性分别为88．6％和90．5％，AMY和LIP同时阴性的特异性为100％。结论 联合测定血清AMY和LIP可提高急性胰腺炎诊断的敏感性和特异性，对急性胰腺炎具有重要的诊断意义。     

血清淀粉酶和脂肪酶联合检测在小儿胰腺炎诊断中的应用

目的探讨血清淀粉酶（AMY）和脂肪酶（LPS）联合测定在小儿急性胰腺炎（CAP）诊断中的价值。方法同时测定36例CAP患儿患病不同时间（2～4h、4～8h、16～24h、2～4d、6～8d）的血清、尿AMY和LPS,并以50例其他疾病的患儿作为对照。结果AMY及LPS的阳性率随着发病时间的延长有逐步升高的趋势。在2—4h时AMY、LPS联合检测,阳性率可增至27．8％（10／36）。4～8h时LPS阳性率明显高于AMY;2—4d后,AMY阳性率明显低落,而LPS的阳性率尚保持较高水平。LPS对CAP的诊断特异性明显高于AMY。结论血清AMY和LPS联合测定可为小儿胰腺炎提供重要的诊断依据。     

血清淀粉酶和脂肪酶联合检测在小儿胰腺炎诊断中的应用

目的探讨血清淀粉酶(AMY)和脂肪酶(LPS)联合测定在小儿急性胰腺炎(CAP)诊断中的价值。方法同时测定36例CAP患儿患病不同时间(2~4 h、4~8 h、16~24 h、2~4 d、6~8 d)的血清、尿AMY和LPS,并以50例其他疾病的患儿作为对照。结果AMY及LPS的阳性率随着发病时间的延长有逐步升高的趋势。在2~4 h时AMY、LPS联合检测,阳性率可增至27.8%(10/36)。4~8 h时LPS阳性率明显高于AMY;2~4 d后,AMY阳性率明显低落,而LPS的阳性率尚保持较高水平。LPS对CAP的诊断特异性明显高于AMY。结论血清AMY和LPS联合测定可为小儿胰腺炎提供重要的诊断依据。     

血清淀粉酶和脂肪酶联合测定在急性胰腺炎诊断中的意义

目的：探讨联合检测血清淀粉酶（AMY）和脂肪酶（LPS）在急性胰腺炎诊断中的意义。方法分别检测65例急性胰腺炎患者（AP组）、67例其它急腹症患者（非AP组）和60名健康对照组血清AMY和LPS水平。结果在诊断AP过程中,AMY的敏感性72.3%,LPS敏感性86.1%,AMY和LPS联合检测的敏感性96.9%;相对AMY单独检测诊断和LPS单独检测诊断,AMY和LPS联合检测诊断AP的敏感性明显升高（χ^2=15.127,P=0.000;χ^2=4.866,P=0.027）。结论联合检测血清AMY与LPS,可以明显提高AP的诊断敏感性。     

淀粉酶与脂肪酶联合检测在急性胰腺炎中的诊断价值

目的探讨血清淀粉酶(SAMY)、尿淀粉酶(UAMY)和脂肪酶(LIPA)联合检测在急性胰腺炎(AP)诊断中的价值。方法测定118例AP患者于发病不同阶段(2～8h、8～24h、24～48h、48～72h、3～7d、7～10d)的SAMY、UAMY和LIPA。结果 SAMY、UAMY和LIPA的检测结果及阳性率随着发病时间的延长有逐步升高的趋势,尤其是UAMY和LIPA,二者呈平行改变。2～8h时,三者单独检测,阳性率均较低,而三者联合检测阳性率可增至43.2%;72h后SAMY明显降低,造成SAMY检测阳性率降低,而UAMY和LIPA检测阳性率达80%以上,三者联合检测阳性率可达90%以上,且SAMY和LIPA联合检测阳性率可达83.1%。结论 SAMY、UAMY和LIPA联合检测可为AP的诊断提供重要依据。     

血清脂肪酶和淀粉酶对急性胰腺炎诊断价值的比较研究

本文比较了血清脂肪酶和淀粉酶对急性胰腺炎的诊断价值。30例临床确诊的急性胰隙炎患者,在疾病早期,血中两种酶浓度存在密切的平行关系,r=0.5911,P<0.01。动物实验表明,血清脂肪酶和淀粉酶一样,同样具有早期诊断的价值。     

血清脂肪酶测定对急性胰腺炎的诊断价值

目的探讨血清脂肪酶(LPS)在急性腹痛时对急性胰腺炎(AP)的鉴别诊断价值。方法将598例急性腹痛患者分为AP组192例和非AP(NAP,包括胆结石30例、肠梗阻15例、急性胆囊炎10例、腹部外伤9例、胰腺恶性肿瘤6例、不明原因腹痛299例、糖尿病6例、上消化道疾病11例、肺部疾病9例、急性肾功能衰竭11例)组406例,同时测定血清LPS和淀粉酶(AMY)。绘制受试者工作特征(ROC)曲线,计算LPS和AMY诊断AP的敏感性、特异性、阳性预测值、阴性预测值。结果 AP组血清AMY和LPS水平明显高于NAP组(P<0.01)。LPS和AMY均以正常参考范围上限的3倍(180、300 U/L)为临界值时,其灵敏度、特异性、阳性预测值和阴性预测值分别为87.5%、62.5%,89.4%、95.3%,80.0%、86.3%和94.7%、88.2%;血清LPS和AMY诊断AP的ROC曲线下面积分别为0.959和0.921,二者测定结果之间呈正相关(r=0.90)。结论血清LPS对AP的诊断性能优于AMY,对AP的诊断具有重要的临床意义。     

Serum amylase, pancreatic amylase and lipase concentrations in epileptic children treated with carbamazepine monotherapy

BACKGROUND: Serum total amylase and lipase activities have been determined in epileptic patients treated with polytherapy using enzyme-inducing anticonvulsant drugs; however, to our knowledge, serum total amylase, pancreatic amylase and lipase activities have not previously been determined in patients receiving carbamazepine monotherapy. The purpose of this study was to investigate by a prospective, self-controlled method, whether early treatment with carbamazepine monotherapy may alter serum total amylase, pancreatic amylase and lipase concentrations of epileptic children. METHODS: Serum total amylase, pancreatic amylase and lipase activities have been determined in 18 epileptic children before and at 6 and 12 months of treatment with carbamazepine monotherapy. Serum gamma-glutamyltransferase activities were also determined. RESULTS: Serum total amylase concentrations were significantly increased at 6 months of treatment (p=0.034), and serum nonpancreatic amylase concentrations were significantly increased at 6 (p=0.016) and 12 months of treatment (p=0.039), whereas serum pancreatic amylase and lipase concentrations did not significantly change at 6 or 12 months of treatment with carbamazepine monotherapy. Furthermore, serum gamma-glutamyltransferase concentrations were significantly increased at 6 (p=0.000) and 12 months of treatment (p=0.000) with carbamazepine monotherapy. There was no significant correlation between serum nonpancreatic amylase concentrations and serum gamma-glutamyltransferase or carbamazepine concentrations at 6 and 12 months of treatment with carbamazepine monotherapy. CONCLUSIONS: These findings indicate that nonpancreatic amylase concentrations may be increased in patients treated with carbamazepine monotherapy. Therefore, measurement of serum pancreatic amylase and lipase concentrations is suggested in epileptic patients receiving carbamazepine monotherapy with symptoms suggesting pancreatic dysfunction, so that unnecessary discontinuing of treatment with carbamazepine should be avoided.     

胰型淀粉酶、脂肪酶在急性胰腺炎中的临床应用

目的为了评价急性胰腺炎中胰型淀粉酶（P—AMY）的临床应用价值,对总淀粉酶（α-AMY）、P—AMY、脂肪酶（lipase,LPS）进行方法学评价。方法选择急性胰腺炎患者126例、其他疾病患者对照组105例、健康对照组95例,用日立7600全自动生化分析仪测定α-AMY、P—AMY、LPS。本实验室临界值定为α-AMY216 U／L、P—AMY 115U／L、LPS 200U／L。结果α-AMY、P-AMY、LPS灵敏度分别为73．1％、88．5％、92．3％,特异性分别为70．5％、81．9％、82．9％,ROC工作曲线下α-AMY、P-AMY、LPS灵敏度分别为65．4％、88．5％、88．5％,特异性分别为86．7％、80．9％、89．5％,α-AMY和P—AMY之间差异有统计学意义（P=0．045）,P-AMY和LPS之间差异无统计学意义（P=0．613）。结论P-AMY检测比α-AMY更敏感、更特异性地反映急性胰腺炎。LPS也同样在急性胰腺炎中具有高灵敏度和特异性,临床上应同时检测P-AMY和LPS作为诊断急性胰腺炎的指标,具有更重要意义。     

急性胰腺炎的实验诊断研究进展

急性胰腺炎是临床上常见的急腹症之一，适时治疗的成功依赖于早期快速的确诊，实验室检查对早期诊断急性胰腺炎有重要作用。本文对实验室常规检测的淀粉酶、脂肪酶、胰蛋白酶原、羧肽酶等，从方法学发展到临床应用作一综述。     

A review of biomarker utilization in the diagnosis and management of acute pancreatitis reveals amylase ordering is favored in patients requiring laparoscopic cholecystectomy

BackgroundDespite widespread recommendations to favor lipase over amylase in the diagnosis and management of acute pancreatitis, many routine hospital laboratories still offer amylase testing. This study sought to evaluate and compare ordering patterns of amylase and lipase in patients with acute pancreatitis.MethodsWe analyzed 438 patients with acute pancreatitis admitted to our hospital. Data collection included pancreatitis etiology and management as well as biochemical profiles of amylase and lipase. We compared serial ordering patterns, degree of biomarker elevation, and normalization kinetics.ResultsAll patients had at least one lipase ordered during their admission, and only 51 patients (12%) had at least one amylase ordered. On average, lipase was elevated 5 times higher above its respective upper reference limit than amylase at admission. Pancreatitis etiology was skewed toward gallstones in the amylase group as compared to the lipase only group (69% vs. 43%), and surgical patients (laparoscopic cholecystectomy) were more likely to have amylase ordered and/or trended.ConclusionsAmylase measurement was not necessary in the diagnosis and management of 88% of patients with acute pancreatitis. Of patients for whom amylase was ordered, it was common for these patients to be those referred to surgical procedures, possibly because amylase normalization may be documented faster than that of lipase.     

Lipase and pancreatic amylase versus total amylase as biomarkers of pancreatitis: an analytical investigation

OBJECTIVE: To evaluate the biomarkers of pancreatitis Colorimetric Lipase, Total Amylase and Pancreatic Amylase (immunoinhibition) assays on the Roche COBAS INTEGRA 700. RESULTS: Pancreatic and Total Amylase assays and Colorimetric Lipase showed excellent imprecision of 1.6 to 2.3% and linearity (slope = 0.94-0.99, y-intercepts-1 to +3 U/L, r = 0.999) over the range of 17 to 900, 35 to 880, and 21 to 150 U/L, respectively. There was an excellent correlation between Pancreatic and Total Amylase: Pancreatic Amylase = 0.99 (+/- 0.02) x Total Amylase-36(+/- 8) (n = 106, r = 0.97, p < 1 x 10(-5), y intercept p < 1 x 10(-5)). Colorimetric Lipase showed some correlation to Total and Pancreatic Amylase results: Colorimetric Lipase = 1.54 (+/- 0.16) x Total Amylase-81(+/- 37) (n = 100, r = 0.70, p < 1 x 10(-6), y intercept p = 0.03), and Colorimetric Lipase = 1.78 (+/- 0.15) x Pancreatic Amylase-50(+/- 29) (n = 99, r = 0.78, p < 1 x 10(-6), y intercept p = 0.09). CONCLUSION: We recommend running the more specific Pancreatic Amylase as biomarker of pancreatitis on the Roche COBAS INTEGRA.     

生化检测指标在急性胰腺炎诊断中的临床意义

目的 探讨血淀粉酶(S-Amy)、尿淀粉酶(U-Amy)、胰脂肪酶(LPS)、胰蛋白酶原激活肽(TAP)和C反应蛋白(CRP)等5项生化指标在急性胰腺炎(AP)早期诊断和病情评估中的应用价值.方法 将265例急腹症患者分为AP组和非AP组,其中AP组根据病情严重程度分为轻症AP(MAP)和重症AP(SAP),同时选取3...     

Serum amylase and acute pancreatitis

Report by John Butler, Consultant
Checked by Damian Bates, Specialist Registrar     

诊断急性胰腺炎的生化检测指标评析

目的通过检测血淀粉酶（S-Amy）、胰脂肪酶（LPS）、C反应蛋白（CRP）及尿淀粉酶（U—Amy）、尿胰蛋白酶原激活肽（TAP）5项生化指标,探讨急性胰腺炎（AP）早期诊断及病情评估的有效指标。方法将541例急腹症患者分为AP组和非AP组,其中AP组分为轻症AP（MAP）和重症AP（SAP）,同时选取80例健康体检者作为正常对照组,于患者人院后6h内采集静脉血并留取新鲜尿液,对各组5项生化指标进行检测和分析。S-Amy,U—Amy、LPS采用速率法,TAP、CRP采用EusA法。结果S-Amy、U—Amy和TAP水平在AP组最高,非AP组次之,正常对照组最低,各组之间差异均具有统计学意义（P〈0．01）。AP组LPS水平较非AP组及正常对照组显著增高（P〈0．01）。AP组与非AP组CRP水平均较正常对照组增高（P〈0．01）,但AP组CRP水平与非AP组比较无显著差异。SAP组U—Amy、TAP及CRP水平显著高于MAP组（P〈0．01）,而S-Amy、LPS水平在这两组间无显著差异（P〉0．05）。LPS用于AP早期诊断的敏感度为92．1％、特异度为91．6oA,显著高于S—Amy、U—Amy、TAP及CRP。结论血、尿淀粉酶、LPS指标对于AP的早期诊断具有重要意义,TAP和CRP有助于评估病变的严重程度、观察疗效及评估预后。