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1.
常规与非体外循环冠状动脉旁路移植术炎症因子比较   总被引:9,自引:0,他引:9  
目的:比较多支冠状动脉(冠脉)病变行常规体外循环冠状动脉旁路移植术(CABG)和非体外循环冠状动脉旁路移植术(OPCAB)围术期心肌损伤和炎症因子的变化情况。方法:CABG组(A组,13例),OPCAB组(B组,22例)。分别于麻醉诱导后、手术结束后即刻、术后24h和48h进行血样检测,分别测定TNF-α、IL-1β、IL-8和IL-10水平。另外记录围手术期各项临床指标如引流量、输血量、呼吸机使用时间和发热时间等。结果:两组在年龄、冠脉病变程度、心功能和血管旁路移植数目上相似。术后IL-8水平OPCAB组相对稍高,但两组无显著差异。围术期CABG组IL-1、TNF较OPCAB明显为高(P<0.05)。但炎症因子IL-10 OPCAB组却较CABG组明显升高(P<0.05),术后24h达高峰。最后,CABG较OPCAB病人呼吸机使用时间延长且发热时间延长。结论:与CABG组相比,OPCAB组围术期炎症反应和术后并发发症明显降低。  相似文献   

2.
目的比较体外循环冠状动脉旁路移植术(CABG)与非体外循环冠状动脉旁路移植术(OPCAB)治疗冠心病的临床效果。方法选取2010-07—2013-12间收治的需行冠状动脉旁路移植术的60例冠心病患者为研究对象,采用随机双盲法将2组患者分为CABG组(实施体外循环冠状动脉旁路移植术)与OPCAB组(实施非体外循环冠状动脉旁路移植术),每组30例,比较2组患者手术效果。结果 OPCAB组在手术时间、术后ICU治疗时间、机械通气时间、旁路移植支数及治疗费用上均明显优于CABG组(P<0.05),2组比较,差异有统计学意义。2组患者均未发生严重不良反应。结论与CABG相比,OPCAB手术操作时间短,患者术后恢复快,值得临床应用。  相似文献   

3.
目的对比分析体外循环冠状动脉旁路移植术(CABG)和非体外循环冠状动脉旁路移植术(OPCAB)治疗高危冠心病患者的手术效果,并总结其临床经验。方法将欧洲心脏手术风险评估系统(EuroSCORE)≥6分的210例高危冠心病患者,根据采用的术式不同分为两组,CABG组:90例,在体外循环下行CABG;OPCAB组:120例,行OPCAB。比较两组患者的手术死亡率、二次开胸止血、肾功能损害、再血管化指数、移植血管血流量、呼吸机支持时间、胸腔引流量和输血量等。结果两组各死亡1例,分别死于恶性室性心律失常和严重低心排血量综合征,两组在死亡率、冠状动脉内膜剥脱率、心房颤动发生率、脑梗死发生率、二次开胸止血、再血管化指数、移植血管血流量等方面差异无统计学意义(P〉0.05);而OPCAB组患者的肾功能损害(Cr〉100μmol/L)、呼吸机支持时间、胸腔引流量和输血量均少于或低于CABG组(P〈0.05)。结论OPCAB适用于高危冠心病患者,而且在缩短呼吸机支持时间、减少胸腔引流量、输血量和减轻肾功能损害等方面具有一定的优势。  相似文献   

4.
合并慢性肾功能不全患者的冠状动脉旁路移植术   总被引:4,自引:3,他引:1  
目的 探讨冠状动脉粥样硬化性心脏病 (冠心病 )合并慢性肾功能不全患者行冠状动脉旁路移植术(CABG)时手术方式的选择。 方法  15例冠心病合并慢性肾功能不全患者根据施行的术式不同分为两组 ,常规CABG(CCABG)组 :9例患者 ,在体外循环下行 CCABG。OPCAB组 :6例患者 ,行非体外循环冠状动脉旁路移植术(OPCAB)。术后观察两组肾功能情况、心律失常、呼吸和神经系统并发症、移植血管支数、呼吸机辅助时间、术后出血量和输血量等临床指标。 结果 全组无手术死亡 ,CCABG组患者术后早期肾功能较术前差 (P<0 .0 5 ) ;OPCAB组患者术后早期肾功能较术前无明显变化 (P>0 .0 5 ) ,术后并发症比 CCABG组低 ,手术时间、ICU时间和术后呼吸机辅助时间均比 CCABG组短 ,术后出血量和输血量比 CCABG组少 (P<0 .0 5 )。 结论 冠心病术前合并肾功能不全的患者 ,采用 OPCAB术式明显优于 CCABG,经围术期的积极处理 ,大多数患者可渡过肾功能衰竭关。  相似文献   

5.
目的 评价非体外循环下冠状动脉旁路移植术 (OPCAB)与常规体外循环下冠状动脉旁路移植术(CCABG)相比是否具有优越性。 方法 将 170例 2支以上血管病变行冠状动脉旁路移植术 (不包括瓣膜手术或室壁瘤切除等合并手术的病例 )患者分为 OPCAB组和 CCABG组 ,OPCAB组通过胸骨正中切口 ,在非体外循环心脏不停跳下完成冠状动脉旁路移植术 ;CCABG组建立常规体外循环 ,心脏停搏下完成冠状动脉旁路移植术。对两组病例的术前和术后各项指标进行对比分析。 结果 两组患者术前的一般情况无差异 ,OPCAB组与 CCABG组间曾行溶栓或经皮腔内冠状动脉成形术治疗和 3支病变的比例分别为 31.8%比 18.3%和 5 9%比 78% ,移植旁路血管分别为3.6± 0 .8支比 4.3± 1.0支 (P<0 .0 1) ,但所用的血管材料两组间无差异。OPCAB组术后呼吸机辅助时间和外科住院时间较短 ,住院费用较低 (P<0 .0 5 )。但术后并发症如二次开胸止血、伤口感染、心律失常、围术期心肌梗死、肺部并发症等的发生率 OPCAB组为 9.8% ,CCABG组为 14.6 % ;OPCAB组无手术死亡 ,CCABG组死亡 1例 (P>0 .0 5 )。 结论  OPCAB治疗冠心病多支病变的初期结果显示可以减少患者术后辅助呼吸时间和外科住院时间 ,降低住院费用。但目前尚不能替代 CCABG,其近、远期效果仍  相似文献   

6.
目的观察研究冠状动脉旁路移植(CABG)术病人术前、术后生存质量(QoL)。方法分为体外循环手术组(ONCAB)和非体外循环手术(OPCAB)组,于手术前1周内、术后3个月和6个月进行西雅图心绞痛调查表(SAQ)和SF-36量表的测评。结果SAQ各项内容评分,术前以心绞痛稳定状态(AS)得分最低,术后各项目有明显好转;SF-36的生理健康内容(PCS)和心理健康内容(MCS)在术后均有不同程度改善;ONCAB和OPCAB两组之间各纬度得分在术后3.6个月比较差异均无统计学意义。结论冠状动脉旁路移植术后病人生活质量提高。ONCAB和OPCAB组生存质量比较差异无统计学意义。  相似文献   

7.
目的分析体外循环和非体外循环冠状动脉旁路移植术(CCABG和OPCAB)围术期血小板数量和功能的变化情况。方法随机选取接受CCABG和OPCAB的患者各30例,术后常规阿司匹林治疗(100mg,每天1次),分别记录两组术前、术后当天、术后1d、5d和10d的血小板数量及二磷酸腺苷诱导的血小板聚集率(PAG)。描绘走行趋势图,分析术后血小板数量和PAG的变化规律。结果在术后常规阿司匹林治疗的情况下,CCABG组和OPCAB组患者术后早期血小板数量均短暂下降,然后显著上升并超过术前水平(P〈0.01),这种变化在CCABG组更明显。两组的PAG术后均增高(P〈0.05),于术后第10天,OPCAB组基本恢复正常,而CCABG组仍高于术前水平(P〈0.05)。结论无论是否应用体外循环,CABG术后均有血小板数量的增加和功能的提高,体外循环组的变化更明显。  相似文献   

8.
目的对比分析体外循环冠状动脉旁路移植术(CABG)和非体外循环冠状动脉旁路移植术(OPCAB)在治疗根据欧洲心脏手术风险评估系统(EuroSCORE)划分的高风险冠状动脉粥样硬化性心脏病(冠心病)患者的手术获益,并总结其临床经验。方法 2007年6月至2013年7月安徽医科大学附属省立医院心脏外科共收治经冠状动脉造影检查确诊的211例冠心病患者,在初次择期手术的冠心病患者中,将同期伴有瓣膜、左心室或主要血管手术的患者剔除。其中52例患者行CABG,男39例、女13例,年龄(61.5±6.5)岁,159例患者行OPCAB,男104例、女55例,年龄(63.9±7.2)岁。根据EuroSCORE计算每例患者的手术死亡率的预测风险(PROM)分值,PROM≥6的患者进入高风险组。比较OPCAB和CABG患者的手术死亡率、手术时间、术后胸腔引流量与输血量、血管吻合的支数、住重症监护室(ICU)时间、呼吸机辅助时间、术后肾功能不全发生率以及高风险组的30 d心血管事件(心律失常、心源性休克)、术后心绞痛、卒中的发生率。结果 OPCAB组和CABG组患者的左主干病变相似,其中OPCAB组血管吻合的支数(2.75±0.82)支,CABG组血管吻合的支数(2.83±0.58)支,两组差异无统计学意义(P〉0.05)。OPCAB组与CABG组在手术时间[(3.92±0.79)h vs.(6.83±1.53)h]、胸腔引流量[(983.14±802.39)ml vs.(1 620.40±879.32)ml]、输血量[(1 289.30±668.08)ml vs.(2 325.30±491.98)ml]、住ICU时间[(3.90±1.33)d vs.(5.08±1.78)d]、呼吸机辅助时间[(9.63±3.32)h vs.(13.76±3.79)h]差异均有统计学意义(P〈0.05),OPCAB组30 d死亡率与CABG组差异无统计学意义(1.26%vs.3.85%,P〉0.05)。高风险子组中的患者,30 d卒中发生率CABG相比较OPCAB的比值比(OR)为5.7(95%CI 1.28~25.09,P〈0.05),30 d心血管事件和术后心绞痛的发生率两组相似。结论 OPCAB与CABG在生存率和血管吻合数方面差异无统计学意义。而相对于CABG,OPCAB在手术时间、胸腔引流量与输血量及住ICU时间、呼吸机辅助时间上都具有优势。在基于EuroSCORE评分的高危患者中,OPCAB相对于CABG更有利于短期卒中预防。  相似文献   

9.
目的 比较使用非体外循环心脏不停跳冠状动脉旁路移植术(OPCAB)、微创小切口直视下心脏不停跳冠状动脉旁路移植术(MIDCAB)和机器人辅助冠状动脉旁路移植术(RA-CAB)3种不同方式行左前降支(LAD)血运重建的围手术期效果.方法 2009年2月至2012年5月,接受单纯LAD血运重建患者102例,其中OPCAB组31例,MIDCAB组45例,RA-CAB组26例.MIDCAB手术方式为左胸小切口心脏不停跳冠状动脉旁路移植术,RA-CAB手术方式为da Vinci机器人辅助左乳内动脉(LI-MA)获取,左胸小切口心脏不停跳冠状动脉旁路移植术.结果 3组患者在术中旁路血管流量、搏动指数和围手术期死亡、心肌梗死、脑血管意外、再次血运重建、严重心脑血管不良事件(MACCE事件)、肾功能衰竭、再次开胸止血、新发心房颤动、纵隔感染以及术后并发症率上均无显著差异.相比OPCAB,MIDCAB和RA-CAB能显著减少输血率(4.4%对32.3%,P<0.05;7.7%对32.3%,P<0.05),其中RA-CAB更能显著缩短术后住院天数[(8.8±3.2)天对(12.4±7.7)天,P<0.05)].MIDCAB与RACAB两组之间围手术期结果差异无统计学意义.结论 MIDCAB和RA-CAB治疗左前降支血管病变安全、有效、可行,围手术期效果满意,比OPCAB能显著减少血制品的使用,RA-CAB更能大大缩短术后住院天数,具有创伤更小、恢复更快的优势.  相似文献   

10.
目的:比较肾脏病膳食改良试验(MDRD)和Cock—croft—Gault(cG)方程以及国内的两个校正MDRD方程对慢性肾脏病(CKD)患者预测肾小球滤过率(GFR)的适用性。方法:选择2006年--2008年646例非透析CKD患者,用简化MDRD和CG公式以及两个国内校正公式(MDRD1、MDRD2)计算估测GFR(eGFR),并进行相关性、偏离度、精密度的比较,以及比较不同CKD分期估测GFR的准确性、偏差中位数。结果:(1)MDRD1方程不论在精密度、偏离度、绝对偏差方面都明显优于其他的方程。(2)MDRD1方程的30%和50%准确率上明显高于其他方程(P〈0.05)。(3)CG明显低估了GFR,MI)RD和MDRD2在Ⅳ期低估了GFR,在Ⅱ、Ⅲ期高估了GFR,MDRD1在Ⅲ期高估了GFR。结论:经过校正的MDRD1方程明显优于CG、简化MDRD、MDRD2方程。  相似文献   

11.
不同公式估算慢性肾脏病患者肾小球滤过率的结果评价   总被引:1,自引:0,他引:1  
目的探讨不同估算公式估算慢性肾脏病(CKD)患者肾小球滤过率(GFR)在肾功能评价中的价值。方法选择CKD患者239例,所有患者同步检测99锝-二乙烯三胺五乙酸(^99mTc-DTPA)、GFR、血肌酐(SCr)等。将^99mTc-DTPA测定的GFR作为参照,并用肾脏病膳食改良试验(MDRD)公式、Cockcroft-Gault公式、简化MDRD公式及慢性肾脏病流行病合作研究(cKD-EPI)公式计算估测GFR,比较不同CKD分期中各估算公式估算的GFR的准确性。结果各估算公式估算的GFR值均高于^99mTc-DTPA,MDRD公式偏离程度最大;各估算公式估算的GFR值与^99mTc-DTPA检查的GFR结果有相关性,CKD-EPI公式相关性最高。结论CKD-EPI公式估算肾功能更接近^99mTc-DTPA的结果,但仍需进一步校正。  相似文献   

12.
目的探讨慢性。肾脏病流行病学合作研究(CKD-EPI)方程对评估中国人肾小球滤过率(GFR)的适用性。方法选择CKD患者42例,对其以CKD-EPI方程估算GFR(eGFR)与BSA标准化的99mTc-DTPA肾动态显像法测定的GFR(sGFR)进行比较。结果eGFR与sGFR呈正相关(r=0.868,P〈0.01);eGFR的15%、30%及50%符合率分别是23.8%、40.5%和64.3%,eGFR与sGFR平均偏差5.46ml/min。结论CKD-EPI方程可广泛应用于评估CKD患者GFR,但仍然存在偏差,需进行大规模试验并根据CKD不同分期进行适用性研究。  相似文献   

13.
Objective To compare the performance of newly developed Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation and Modification of Diet in Renal Disease (MDRD) equation in patients with peripheral arterial diseases (PAD). Methods A total of 841 patients with PAD were enrolled in this retrospective cohort study. Estimated glomerular filtration rate (eGFR), calculated by MDRD and CKD-EPI equation respectively, was analyzed by Spearman correlation analysis, Bland-Altman method and Kappa test for the evaluation of correlation and consistency. Net re-classification improvement (NRI) was adopted to compare the death risk assessment between these two equations. Results Although the eGFR was 4.33 ml•min-1•(1.73 m2)-1 higher with MDRD equation than with CKD-EPI equation, there were still significant correlation and fine consistency between eGFRMDRD and eGFRCKD-EPI (Kappa:0.749, r=0.991, P<0.05). The CKD-EPI equation re-classified 9 (1.1%) patients upward to higher eGFR category and 143 (17.0%) patients downward to lower eGFR category. Besides, the performance of risk assessment for all-cause death was better with CKD-EPI equation than with MDRD equation (NRI=0.059, P<0.05), which was not the case for cardiovascular death (NRI=0.022, P>0.05). Conclusions There is no solid evidence suggesting that CKD-EPI equation performs better than MDRD equation.  相似文献   

14.
A decline in renal function suggests progression of chronic kidney disease. This can be determined by measured GFR (e.g., iothalamate clearance), serum creatinine (SCr)-based GFR estimates, or creatinine clearance. A cohort of 234 patients with autosomal dominant polycystic kidney disease and baseline creatinine clearance>70 ml/min were followed annually for four visits. Iothalamate clearance, SCr, and creatinine clearance were obtained at each visit. Estimated GFR (eGFR) was determined with the Modification of Diet in Renal Disease (MDRD) and Cockcroft-Gault equations. Renal function slopes had a mean residual SD of 10.7% by iothalamate clearance, 8.2% by MDRD equation, 7.7% by Cockcroft-Gault equation, and 14.8% by creatinine clearance. By each method, a decline in renal function (lowest quintile slope) was compared among baseline predictors. Hypertension was associated with a decline in iothalamate clearance (odds ratio [OR] 5.8; 95% confidence interval [CI] 2.3 to 14), eGFR (OR [MDRD] 2.0 [95% CI 1.0 to 4.2] or OR [Cockcroft-Gault] 1.9 [95% CI 0.9 to 3.9]), and creatinine clearance (OR 2.0; 95% CI 1.0 to 4.2). Each doubling of kidney volume at baseline was associated with a decline in iothalamate clearance (OR 2.4; 95% CI 1.5 to 3.7), eGFR (OR 1.7 [95% CI 1.1 to 2.6] or 2.1 [95% CI 1.4 to 3.3]), and creatinine clearance (OR 1.7; 95% CI 1.1 to 2.5). Predictor associations were strongest with measured GFR. Misclassification from changes in non-GFR factors (e.g., creatinine production, tubular secretion) conservatively biased associations with eGFR. Misclassification from method imprecision attenuated associations with creatinine clearance.  相似文献   

15.
目的探讨慢性肾脏病流行病学合作研究(CKD-EPI)方程在中国人CKD的不同分期评估肾小球滤过率(GFR)的适用性。方法选择我院肾内科CKD患者98例。将CKl2vEPI方程估算的GFR值用体表面积(BSA)标准化得出估算GFR(eGFR),与BsA标准化的肾动态显像法(^99Tc-DTPA)检测的GFR(sGFR)用K/DOOI指南推荐的方法进行比较。结果相关性分析得出eGFR与sGFR呈正相关(r=0.847,P〈0.01);eGFR的15%、30%及50%符合率分别是31.6N、59.2%和85.7%,eGFR估计值与sGFR平均偏差2.56ml/min。CKD各期偏差均无统计学意义,在CKD2~5期,偏差较小;CKD1期,偏差略大,偏差值为(13.22±22.41),但偏差无统计学意义(P〉0.05)。结论CKD-EPI方程可广泛应用于我国CKD各期患者评估GFR,具有较小的偏差,较高的准确性。CKD-EPI方程在评估较高的GFR时,可能存在矫枉过正,高估GFR。  相似文献   

16.

Objectives

Estimations of glomerular filtration rate (eGFR) are based on analyses of creatinine and cystatin C, respectively. Coronavirus disease 2019 (COVID-19) patients in the intensive care unit (ICU) often have acute kidney injury (AKI) and are at increased risk of drug-induced kidney injury. The aim of this study was to compare creatinine-based eGFR equations to cystatin C-based eGFR in ICU patients with COVID-19.

Methods

After informed consent, we included 370 adult ICU patients with COVID-19. Creatinine and cystatin C were analyzed at admission to the ICU as part of the routine care. Creatinine-based eGFR (ml/min) was calculated using the following equations, developed in chronological order; the Cockcroft–Gault (C-G), Modified Diet in Renal Disease (MDRD)1999, MDRD 2006, Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI), and Lund–Malmö revised (LMR) equations, which were compared with eGFR calculated using the cystatin C-based Caucasian Asian Pediatric Adult (CAPA) equation.

Results

The median eGFR when determined by C-G was 99 ml/min and interquartile range (IQR: 67 ml/min). Corresponding estimations for MDRD1999 were 90 ml/min (IQR: 54); MDRD2006: 85 ml/min (IQR: 51); CKD-EPI: 91 ml/min (IQR: 47); and for LMR 83 ml/min (IQR: 41). eGFR was calculated using cystatin C and the CAPA equation value was 70 ml/min (IQR: 38). All differences between creatinine-based eGFR versus cystatin C-based eGFR were significant (p < .00001).

Conclusions

Estimation of GFR based on various analyses of creatinine are higher when compared with a cystatin C-based equation. The C-G equation had the worst performance and should not be used in combination with modern creatinine analysis methods for determination of drug dosage in COVID-19 patients.  相似文献   

17.
目的 探讨术前因素对非体外循环冠状动脉旁路移植术(off-pump coronary artery bypass grafting,OPCAB)后心房颤动(postoperative atrial fibrillation,POAF)发生率的影响.方法 回顾性分析我科2010年1月~2011年12月237例首次接受OPCAB的临床资料,对POAF的术前影响因素进行单因素和logistic回归分析.结果 POAF发生率16.9%(40/237).logistic回归分析显示年龄(OR=1.068,95%CI:1.019 ~1.118,P=0.006)、BMI(OR=1.138,95% CI:1.010 ~1.281,P=0.034)、舒张压(OR=1.056,95% CI:1.020 ~1.094,P=0.002)及左心房前后径(OR=1.089,95% CI:1.002~1.184,P=0.046)是OPCAB后POAF的术前危险因素.结论 年龄、BMI、舒张压及左心房前后径是OPCAB后发生POAF的术前危险因素.  相似文献   

18.

Background

Acute kidney injury and chronic kidney failure are serious complications after lung transplantation. Glomerular filtration rate (GFR) is the primary indicator of renal function. Several equations have been proposed to evaluate the estimated GFR (eGFR). We compared three different equations to determine which has the better correlation with the development of acute and chronic renal failure in lung recipients.

Methods

Twenty-two patients with a mean age of 54.4 ± 8.5 years underwent lung transplantation from 2010 to 2015. Thirteen (59%) had pulmonary fibrosis, 7 (32%) emphysema, 1 (4.5%) bronchiectasis, and 1 (4.5%) lymphangioleiomyomatosis. In all patients, eGFR was measured preoperatively using Cockcroft-Gault (CG), Modification of Diet in Renal Disease (MDRD), and Levey's Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations. In 20 patients (90%) eGFR was calculated at 1, 3, and 6 months.

Results

According to CKD-EPI and MDRD, eight patients (36.3%) had preoperative reduction in eGFR, whereas 6 patients (27.2%) had preoperative reduction according to the CG (P = .04). The mean values were higher for the CG (103.2 vs. 102 vs. 94.4). Five patients (22.7%) developed perioperative acute renal failure requesting a dialysis treatment; four of these showed a preoperative eGFR to the highest CG (P = .05). At 1 and 6 months after lung transplantation, the CG, MDRD and CKD-EPI eGFR values were, respectively, 86.6, 84.1 and 76.6 mL/min/1.73m2 and 75.8, 72.7, and 72.3 mL/min/1.73m2. CKD-EPI eGFR values are more predictable than the other equations of AKI.

Conclusions

Preoperative assessment of eGFR using the MDRD and CKD-EPI seems to correlate better than the CG to the prediction of acute renal failure, whereas for the chronic form the three equations seem equivalent.  相似文献   

19.
目的比较不同肾小球滤过率估算公式在老年人肾功能状况评估中的适用性及其与内生肌酐清除率(Ccr)的相关性。方法选择720例老年内科患者,应用Cockcroft-Gault(C-G)公式、肾脏病膳食改良试验(MDRD)7(M7)公式、MDRD(Ma)公式及我国改良MDRD(Me)公式计算估计肾小球滤过率(eGFR)。分析C-G公式与其他公式计算的eGFR值与年龄和Ccr值的相关性。结果Ccr值和C-G公式计算的eGFR值均随年龄增长明显下降,与年龄呈显著负相关;其他公式计算的eGFR值与年龄均无相关性。本组患者的总体Ccr值为(50.32±23.64)ml·min-1·(1.73m2)-1;C-G公式计算的eGFR值为(45.45±18.46)ml·min-1·(1.73m2)-1,与Ccr值最为接近;其他公式的测定值均显著高于Cer值。在总体和CKD3~4期患者,C-G公式计算的eGFR值与Ccr值的相关性均高于其他公式。结论C-G公式计算的eGFR值与年龄和Ccr值的相关性最好,C-G公式可代替Ccr评估老年人的肾功能状况。  相似文献   

20.
BACKGROUND: Detection of renal dysfunction is important in critically ill patients, and in daily practice, serum creatinine is used most often. Other tools allowing the evaluation of renal function are the Cockcroft-Gault and MDRD (Modification of Diet in Renal Disease) equations. These parameters may, however, not be optimal for critically ill patients. The present study evaluated the value of a single serum creatinine measurement, within normal limits, and three commonly used prediction equations for assessment of glomerular function (Cockcroft-Gault, MDRD and the simplified MDRD formula), compared with creatinine clearance (Ccr) measured on a 1 h urine collection in an intensive care unit (ICU) population. METHODS: This was a prospective observational study. A total of 28 adult patients with a serum creatinine <1.5 mg/dl, within the first week of ICU admission, were included in the study. Renal function was assessed with serum creatinine, timed 1 h urinary Ccr, and the Cockcroft-Gault, MDRD and simplified MDRD equations. RESULTS: Serum creatinine was in the normal range in all patients. Despite this, measured urinary Ccr was <80 ml/min/1.73 m2 in 13 patients (46.4%), and <60 ml/min/1.73 m2 in seven patients (25%). Urinary creatinine levels were low, especially in patients with low Ccr, suggesting a depressed production of creatinine caused by pronounced muscle loss. Regression analysis and Bland-Altman plots revealed that neither the Cockcroft-Gault formula nor the MDRD equations were specific enough for assessment of renal function. CONCLUSIONS: In recently admitted critically ill patients with normal serum creatinine, serum creatinine had a low sensitivity for detection of renal dysfunction. Furthermore, the Cockcroft-Gault and MDRD equations were not adequate in assessing renal function.  相似文献   

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