血红蛋白电泳在婴儿地中海贫血筛查中的应用价值和临床研究

目的血红蛋白电泳在婴儿地中海贫血筛查中的应用价值和临床研究。方法选取我院从2012年1月到2015年12月儿科做儿童保健的1255例3月龄婴儿做为研究对象。应用全自动电泳分析系统对所有婴儿静脉血行血红蛋白电泳测定。对于测定结果地中海贫血阳性病例实施基因分析。结果 1255例3月龄婴儿静脉血样本中,血红蛋白异常病例共91例,其中疑似α-地中海贫血57例,疑似β-地中海贫血22例,疑似异常血红蛋白12例。基因测定结果提示α-地中海贫血51例,筛查符合率为89.47%;β-地中海贫血19例,筛查符合率为86.36%;9例异常血红蛋白,3例HbE型,2例HbQ型,2例HbD型,Hb New York型、Hb J及Hb G型各1例。α-地中海贫血基因构成中--~(SEA)/αα、-α~(3.7)/αα及-α~(4.2)/αα3种类型占比最多,分别为2.39%、0.56%及0.48%;β-地中海贫血基因构成中βCD41-42/βN、βIVS-Ⅱ-654/βN及βCD17/βN3种类型占比最多,分别为0.64%、0.39%及0.24%。结论临床对婴儿应用血红蛋白电泳测定其静脉血中血红蛋白中各组分的含量,对婴儿中地中海贫血的进行早期筛查与分类确诊,具较高的诊断符合率,值得临床广泛推广应用。     

新生儿血红蛋白对地中海贫血筛查准确性分析

目的探讨新生儿脐带血与出生1～3d外周血血红蛋白组分与表达量对地中海贫血的筛查准确性。方法收集2016年1月至2017年6月在该院出生,并进行珠蛋白基因筛查的新生儿220例,应用毛细管电泳分析脐带血或外周血血红蛋白组分。结果 220例新生儿中脐带血组146例,外周血组74例,两组血红蛋白电泳结果一致。以基因检测结果为确诊标准,α-地中海贫血77例,其中电泳检测出Hb Bart′s条带63例,未检出Hb Bart′s条带均为静止型α-地中海贫血。以Hb Bart′s条带作为电泳筛查α-地中海贫血的标准,其灵敏度为81.81%(63/77),对轻型α-地中海贫血灵敏度达100.00%(61/61),特异度为100.00%(108/108)。基因检出β-地中海贫血34例与健康新生儿108例,两者血红蛋白F(HbF)百分比采用ROC曲线分析。轻型β-地中海贫血的截断值为86.65%,其灵敏度为94.12%(32/34),特异度为84.26%(91/108)。结论新生儿通过Hb Bart′s条带筛查α-地中海贫血,通过HbF筛查β-地中海贫血都有较好的灵敏度和特异度。     

12898例全自动血红蛋白电泳检测结果分析

目的回顾性分析全自动血红蛋白(Hb)电泳检测的结果,并探讨Hb电泳在血红蛋白病筛查中的意义。方法收集2011年1月至2013年12月在该院进行血常规及全自动Hb电泳检测的患者临床资料,记录其平均红细胞体积(MCV)、平均红细胞血红蛋白含量(MCH)及Hb电泳检测结果,对疑似地中海贫血的患者进行地中海贫血基因检测,计算Hb电泳筛查的检出率、基因检测的符合率及各种血红蛋白病的构成比。结果共收集了12 898例患者的临床资料,MCV为(85.32±13.61)fL,MCH为(29.87±6.44)pg,通过全自动Hb电泳仪共检出阳性标本1 315例,其中男568例、女747例,检出率是10.19%,其中疑似α-地中海贫血的患者761例,占5.90%;疑似β-地中海贫血的患者495例,占3.84%;HbJ患者11例,占0.08%;HbK患者15例,占0.12%;HbG患者9例,占0.07%;HbD患者3例,占0.02%;HbE患者21例,占0.16%。α-地中海贫血基因符合率80.55%,β-地中海贫血基因符合率96.77%。结论全自动Hb电泳检测在血红蛋白病的筛查中能发挥重要作用。     

重庆地区育龄人群地中海贫血不同基因型血液学特征的分析

目的:探讨重庆地区育龄人群地中海贫血的血液学筛查及基因型分布特征。方法:29 145例育龄期个体进行血细胞分析及血红蛋白电泳检测,对筛查阳性的患者进一步行地中海贫血基因检测,分析地中海贫血患者基因型的分布及MCV、MCH、Hb A2特征。结果:--SEA/αα(45.10%)、-α3.7/αα(39.31%)和-α4.2/αα(8.46%)为最常见的α地中海贫血基因型,CD17(HBB:c. 52A>T)(31.67%)、CD41-42(HBB:c. 126-129 del TTCT)(26.87%)和IVS-Ⅱ-654(HBB:c. 316-197 C>T)(24.21%)为最常见的β地中海贫血基因型。α地中海贫血基因型中,ααCS/αα有最低的Hb A2水平(2.18±0.23)%,而--SEA/αα有最低的MCV(71.9±8.5)fl和MCH(22.7±3.3)pg水平。βE(HBB:c. 79G>A)基因型MCV(79.8±5.6)fl和MCH(26.3±1.9)pg明显高于其他型,而Hb A(72.2±5.9)%和Hb A2(3.41±0.37)%明显低于...     

新生儿脐血Hb Bart's水平筛查作为α-地中海贫血携带者临床应用评价

入选2014年1~6月本院出生的新生儿3096例为研究对象,采集新生儿脐血标本,采取高效液相色谱法进行血红蛋白分析和分子技术分别进行Hb Bart's定量和α-地中海贫血基因分析。结果在3096份新生儿脐血标本中,检出Hb-Bart's阳性样品276份,阳性率为8.91%;检出异常Hb 8例,异常Hb病发病率为0.26%。在阳性样品276份中检出270份有不同程度的α-珠蛋白基因缺失,因此Hb-Bart's定量检测发对α-地中海贫血诊断准确率为97.8%,假阳性率为2.2%。对剩余的2820份样本进行基因检验,其中共检出78份阳性样本,因此α-地中海贫血基因携带率为11.24%。Hb-Bart's定量检测能够有效筛查基因型--SEA/αα、--SEA/--SEA、ααCS/αα和--SEA/-α3.7地中海贫血,但对-α/αα基因型的静止型地中海贫血的漏检率则相对较高,存在误诊和漏诊的可能性。结论新生儿脐血Hb Bart's水平筛查经济、快速,操作简便,能够对不同类型的α-地中海贫血做出早期的诊断,但对静止型地中海贫血有漏诊和误诊的可能性,应引起临床重视。     

顺德地区儿童地中海贫血状况调查及基因型分析

目的探讨顺德地区儿童贫血状况及地中海贫血基因分型。方法选取我院2017年1月～2018年1月收治的疑似贫血儿童1502例,采用血红蛋白电泳方法进行初步筛选,然后使用跨越断裂点PCR(Gap-PCR)法和反向点杂交(RDB)技术确定地中海贫血基因型。结果 1502例疑似贫血患儿,使用血红蛋白电泳法共检出阳性贫血患儿1064例,阳性率为70.83%;进一步,采用基因诊断方法 422例确诊为地中海贫血,检出地中海贫血率为28.10%;422例地中海贫血基因型分别为:a-型地中海贫血225例,携带率为14.98%,缺失型a地贫基因型:-SEA/αα182例,-α3.7/αα31例,-α4.2/αα12例,携带率分别为:12.12%,2.06%,0.80%;非缺失型a地贫基因:αCSα/αα6例,αQSα/αα7例,αWSα/αα5例,携带率分别:0.40%,0.47%,0.33%;H突变11例,携带率为0.73%;β地中海贫血基因168例,携带率为11.19%:β41～42/βN71例,β654/βN38例,β-28/βN15例,β-17/βN25例,β-43/βN4例,βE/βN2例,β71～72/βN8例,β27～28/βN3例,βIVS-I-1/βN1例,β41～42/β171例,携带率分别为:4.73%,2.53%,1.00%,1.66%,0.27%,0.13%,0.53%,0.20%,0.07%,0.07%。结论顺德地区儿童地中海贫血基因基因类型复杂,且主要突变类型为--SEA/αα、β41-42/βN,本研究为临床地中海贫血诊断提供了依据。     

应用HPLC方法筛查广州市育龄期夫妇的异常血红蛋白病

目的:应用高效液相色谱技术(HPLC)检测广州市育龄期夫妇异常血红蛋白病的发生情况。方法:对2008年10月至2016年2月参加广州市出生缺陷干预工程和免费孕前健康体检的育龄期夫妇筛查,应用HPLC检测各种异常血红蛋白,应用Gap-PCR检测法和反向斑点杂交法(RDB)检测常见α、β地中海贫血基因型。结果:HPLC检测样本为11712份,发现134例共8种异常血红蛋白,分别为Hb E 102例(17例合并α地中海贫血),Hb Q-Thailand 20例(18例合并-α~(4.2)/αα,1例合并-α~(4.2)/αα和CD17/N,1例合并-α~(4.2)/αα和βE/N),Hb D-Iran 4例(2例合并-α~(3.7)/αα,1例合并CD41-42/N),Hb G-Honolulu 3例(1例合并-α~(3.7)/αα),Hb J-Bangkok 2例(均合并--~(SEA)/αα),Hb Koln 1例(合并--~(SEA)/αα),Hb Osu-Christiansborg 1例(合并--~(SEA)/αα),Hb Hasharon 1例(合并-α~(3.7)/αα)。异常血红蛋白病的检出率为1.14%(134/11712)。结论:广州地区血红蛋白病的发生率较高,共检出8种异常血红蛋白。应用HPLC技术对育龄期夫妇进行异常血红蛋白病的筛查,可做到早发现,早预防,对优生优育和提高人口素质具有重要意义。     

中国福建省龙岩地区地中海贫血基因突变类型的分析

目的:了解中国福建省龙岩地区α、β地中海贫血的基因突变类型及其分布特征,为本地区地中海贫血产前咨询和产前诊断提供依据,减少出生缺陷。方法:采用平均红细胞体积(MCV)、平均红细胞血红蛋白含量(MCH)和血红蛋白电泳进行筛查,阳性者采用跨越断裂点PCR(gap-PCR)技术和DNA反向点杂交芯片技术(reverse dot blot,RDB)进行基因分型检测。结果:7823例血常规阳性受检者中,经血红蛋白电泳筛查初筛阳性2826例,阳性率为36.12%;对其中2710例进行了α、β地中海贫血基因诊断,1905例被确诊为地中海贫血,检出携带率为24.35%。在1905例中α-地中海贫血1225例,携带率为15.66%,基因型主要是—~(SEA)/αα、-α~(3.7)/αα、-α~(3.7)/—~(SEA)、-α~(4.2)/αα,携带率分别为12.91%、1.28%、0.51%、0.74%;β-地中海贫血632例,其携带率为8.08%,基因型主要为654M/N、41-42M/N、17M/N、-28M/N、27-28M/N,携带率分别为3.66%、2.22%、0.78%、0.66%、0.45%;α-地中海贫血复合β-地中海贫血检出48例,携带率为0.61%。结论:中国福建省龙岩地区α、β地中海贫血基因主要突变类型分别为—~(SEA)/αα、654M/N,其在本地区携带率较高,为福建省的地中海贫血高发区,应加强对本地区育龄人群的地中海贫血的筛查和产前的基因诊断工作,以避免重型地中海贫血患儿出生     

Hb、MCV、MCH在腾冲汉族地贫筛查中的临床应用价值

目的探讨血液学参数血红蛋白浓度(Hb)、平均红细胞体积(MCV)、红细胞平均血红蛋白含量(MCH)在腾冲市汉族人群缺失型α-地中海贫血和常见突变型β-地中海贫血筛查中的临床应用价值,研究临床初筛方案。方法随机选择2017年12月在腾冲市人民医院检验科进行常规体检的500例汉族受试者进行血常规检测,通过基因诊断确诊为常见的缺失型α-地中海贫血和突变型β-地中海贫血,比较Hb、MCV、MCH单项及联合检测对地中海贫血筛查的灵敏度和特异度,探讨其临床应用价值,制定适合当地人群的临床筛查截断值。结果腾冲市汉族中最常见的α-和β-地中海贫血分别为-α3.7/αα和异常血红蛋白E(HbE),血液学参数MCH、MCV分别为筛查-α3.7/αα及HbE筛查最具价值的指标。结论血液学参数Hb、MCV、MCH对腾冲市汉族人群上述2种常见地中海贫血的筛查有临床应用价值。     

深圳地区12960例地中海贫血筛查受检者的地中海贫血基因型分析

目的 探讨深圳地区地中海贫血基因型特征,及其罕见基因型碱基突变位点.方法 选择2014年5月至2015年10月于广东省深圳市第二人民医院拟行地中海贫血筛查的12 960例受检者为研究对象.研究对象纳入标准:①红细胞平均体积(MCV)＜80 fl的门诊及住院患者;②于本院行产前筛查的孕妇.排除标准:①不愿意参加本试验者;②已被确诊为其他血液系统疾病者.受试者先进行血常规MCV、血红蛋白(Hb)电泳和红细胞脆性检测的地中海贫血筛查试验,对筛查试验阳性(红细胞脆性＜70％)的患者,采用跨越断裂点PCR及反向斑点杂交(RDB)技术进行地中海贫血基因常见缺失型和点突变的基因型检测.对常见基因型检测不能确诊的患者,采用巢式PCR和PCR-直接测序(SBT)技术进行罕见基因型分析.本研究遵循的程序符合深圳市第二人民医院制定的伦理学标准,得到该委员会批准,并征得受试对象本人的知情同意,与之签署临床研究知情同意书.结果 12 960例受检者中,地中海贫血筛查试验阳性患者为2 194例,通过常见基因型检测,确诊1 019例为地中海贫血,检出率为46.4％.537例α地中海贫血患者中,以东南亚缺失型(--SEA/αα)比例最高,占66.1％(355/537),其次为α地中海贫血2(-α 3.7/αα)占15.6％(84/537),而基因型(αCS α/αCSα、αQS α/αQS α、αWS α/αWSα)和4种HbH病基因型(-α3.7/αQS ααQS、--SEA /αCS αCS、--SEA/αQS αQS、--SEA/αWS αWS)较为少见.α地中海贫血罕见基因型检出率为0.1％(3/2 194),包括2例HKαα/--SEA及1例HKαα/αα.在456例β地中海贫血患者中,β41-42(-TCTT)/β和β654(C＞T) /βA基因型检出率最高,分别为33.8％(154/456)和30.3％(138/456).在26例β复合α地中海贫血患者中,以β复合α地中海贫血1(--SEA/αα)基因型检出率最高(34.6％,9/26).β地中海贫血罕见基因型检出率为0.2％(4/2 194),包括2例β37G＞A),突变点为413 G＞A或405 G＞A,1例β88-93(-AGTG),突变点为557处出现杂合峰,1例β-88(C＞T),突变点为-88 C＞T.结论 深圳地区地中海贫血基因型有独特的分布特征,巢式PCR技术有助于发现HKαα/--SEA及HKαα/αα基因型.采用PCR-SBT技术能鉴定罕见地中海贫血基因型并发现新突变点.本研究结果为在深圳地区开展遗传咨询和产前诊断提供了参考数据.     

Determination of creatine kinase isoenzyme MB activity in serum using immunological inhibition of creatine kinase M subunit activity. Activity kinetics and diagnostic significance in myocardial infarction.

This is a new method for the determination of creatine kinase isoenzyme MB activity in serum. The method uses direct activity measurement of creatine kinase B subunit activity after blocking of CK-M subunit activity by inhibiting antibodies. The test takes no longer than 15 min. The method yields an intra-serial C.V. of 2.0-12.9%, and a C.V. from day to day of 5.5%. The detection limit is 3.4 U/l creatine kinase MB. In the 95 cases with proven myocardial infarction several types of creatine kinase MB activity kinetics could be determined. The percentage of creatine kinase MB of peak CK-total is 6-25%, with a mean of 11.1%. The amount of creatine kinase MB with respect to total CK activity after reinfarction is higher than the amount after initial infarction.     

俯卧位通气对高海拔地区肺复张治疗无效急性呼吸窘迫综合征患者氧合的影响

目的 探讨俯卧位通气对高海拔地区肺复张术(RM)治疗无效急性呼吸窘迫综合征(ARDS)患者的治疗作用.方法 从海拔2260m的地区医院筛选RM治疗无效的41例ARDS患者[平均氧合指数( PaO2/FiO2)较RM前升高＜20％视为RM无效],依不同病因分为肺内源性ARDS组(ARDSp组)和肺外源性ARDS组(ARDSexp组),每组再按信封法随机分为俯卧位组和仰卧位组,即ARDSp俯卧位组(11例)、ARDSp仰卧位组(9例)、ARDSexp俯卧位组(10例)、ARDSexp仰卧位组(11例).在通气前及通气1、2、3、4h监测动脉血氧分压( PaO2)、PaO2/FiO2、静态顺应性(Cst)、气道阻力(Raw)的变化.结果 通气lh时,ARDSexp俯卧位组PaO2/FiO2( mm Hg,l mm Hg=0.133 kPa)即较通气前显著升高(157.4±40.6比129.3±48.7,P＜0.05),并随通气时间延长呈持续增高趋势,4h达峰值(219.1 ±41.1);且ARDSexp俯卧位组通气3h内PaO2/FiO2较其他3组显著增高,另3组间则差异无统计学意义.ARDSp俯卧位组、ARDSexp俯卧位组通气4h时PaO2/FiO2均较相应仰卧位组显著增高(208.8±39.7比127.4±47.1,219.1±41.1比124.9±50.8,均P＜0.05).4组通气前后Cst无显著改变,各组间差异也无统计学意义.ARDSp俯卧位组通气4h时Raw(cmH2O·L-1·s-1)较通气前显著降低(6.8±1.7比10.7±1.8,P＜0.05),且明显低于其他3组;其他3组各时间点Raw组内及组间比较差异均无统计学意义.结论 俯卧位通气作为ARDS机械通气重要策略之一,可以改善RM无效高原ARDS患者的氧合,为抢救患者赢得宝贵的时间.     

Digital imaging among medical facilities

The Department of Veterans Affairs (VA) in the USA operates a network of 172 medical centres which all utilize a hospital information system (HIS) which has been developed and is currently maintained by the VA. During the past several years, an image management and communication module has been developed, installed and clinically utilized at the Washington DC and Maryland VA Medical Centres. This image management and communication system, referred to as the decentralized hospital computer program (DHCP) imaging system, is fully integrated with a commercial picture archiving and communication system (PACS). The system is utilized to capture, archive, and display all images generated within the hospital including radiology, nuclear medicine, pathology, endoscopy, bronchoscopy, and dermatology, intraoperative photographs, ECG data, and a limited number of paper documents. The ultimate goal of the project is to have all patient text and image data available at any clinical workstation to any authorized user anywhere within the network of medical centres. Clinical requirements for an imaging workstation include ease of use, rapid and reliable access to the complete set of patient information, and images which are of acceptable quality to meet the requirements of the user and the subspecialty. Patient confidentiality and data security must be safeguarded at all times. Integration of the images with the remainder of the patient's database was found to be critical to the success of the project. The experience at the Washington and Maryland facilities suggests that an imaging system that is successfully integrated with a hospital information system can provide substantial clinical and economic benefits both within and among medical centres. Clinical acceptance and utilization of the system has been excellent, particularly in diagnostic radiology where DHCP Imaging has been interfaced to a commercial PAC system. Based upon this initial experience, the VA has begun to deploy the system throughout its large network of medical centres.     

Myocardial elastography at both high temporal and spatial resolution for the detection of infarcts

Myocardial elastography is a novel method for noninvasively assessing regional myocardial function, with the advantages of high spatial and temporal resolution and high signal-to-noise ratio (SNR). In this paper, in-vivo experiments were performed in anesthetized normal and infarcted mice (one day after left anterior descending coronary artery [LAD] ligation) using a high-resolution (30 MHz) ultrasound system (Vevo 770, VisualSonics Inc., Toronto, ON, Canada). Radiofrequency (RF) signals of the left ventricle (LV) in longitudinal (long-axis) view and the associated electrocardiogram (ECG) were simultaneously acquired. Using a retrospective ECG gating technique, 2-D full field-of-view RF frames were acquired at an extremely high frame rate (8 kHz) that resulted in high-quality incremental displacement and strain estimation of the myocardium. The incremental results were further accumulated to obtain the cumulative displacements and strains. Two-dimensional and M-mode displacement images and strain images (elastograms), as well as displacement and strain profiles as a function of time, were compared between normal and infarcted mice. Incremental results clearly depicted cardiac events including LV contraction, LV relaxation and isovolumetric phases in both normal and infarcted mice, and also evidently indicated reduced motion and deformation in the infarcted myocardium. The elastograms indicated that the infarcted regions underwent thinning during systole rather than thickening, as in the normal case. The cumulative elastograms were found to have higher elastographic SNR (SNR(e)) than the incremental elastograms (e.g., 10.6 vs. 4.7 in a normal myocardium, and 6.0 vs. 2.4 in an infarcted myocardium). Finally, preliminary statistical results from nine normal (m = 9) and seven infarcted (n = 7) mice indicated the capability of the cumulative strain in differentiating infracted from normal myocardia. In conclusion, myocardial elastography could provide regional strain information at simultaneously high temporal (>/=0.125 ms) and spatial ( approximately 55 microm) resolution as well as high precision ( approximately 0.05 microm displacement). This technique was thus capable of accurately characterizing normal myocardial function throughout an entire cardiac cycle, at the same high resolution, and detecting and localizing myocardial infarction in vivo.     

Clinical Pharmacokinetics of Morphine

Morphine, the most widely used mu-opioid analgesic for acute and chronic pain, is the standard against which new analgesics are measured. A thorough understanding of the pharmacokinetics of morphine is required in order to safely and effectively use this analgesic in a wide variety of patients with different levels of organ function. A MEDLINE search was conducted to identify literature published between 1966 and January 2002 relevant to the pharmacokinetics of morphine. These publications were reviewed and the literature summarized regarding unique and clinically important elements of morphine disposition relative to its parenteral administration (including intravenous, intramuscular, subcutaneous, epidural and intrathecal administration), absorption profile (immediate release, controlled release, and sublingual/buccal, and rectal administration), distribution, and its metabolism/ excretion. Special populations, including infants, elderly, and those with renal/liver failure, have a unique morphine pharmacokinetic profile that must be taken into account in order to maximize analgesic efficacy and reduce the risk of adverse events.     

手转胎头术失败的原因与分娩结局临床分析

目的 探讨手转胎头术失败的原因与分娩结局.方法 选择2008年1月至2010年12月于我院住院分娩的持续性枕横位、枕后位产妇198例,根据行手转胎头术后结果分为成功组126例、失败组72例.比较两组分娩结局,对比分析失败原因.结果 失败组胎儿体质量≥3500 g的发生率[76.4％(55/72)]明显高于成功组[31.7％(40/126)],差异有统计学意义(x2=30.177,P=0.001)、失败组宫缩乏力发生率[58.3％(42/72)]高于成功组[38.1％ (48/126)],差异有统计学意义(x2=7.569,P=0.006)、失败组骨盆临界或轻度狭窄发生率[38.9％ (28/72)]高于成功组[23.8％(30/126)],差异有统计学意义(x2 =5.030,P=0.002)、失败组手转胎头时机不当(宫口开大＜6 cm、胎头位于坐骨棘上及宫口开大8～10 cm、胎头位于坐骨棘下≥2 cm)发生率[61.1％(44/72)]高于成功组[38.9％(49/126)],差异有统计学意义(x2=9.084,P=0.003).失败组母儿并发症(产后出血、产褥病率、胎儿窘迫、新生儿窒息)发生率高于成功组(x2 =9.586,P=0.002、x2=9.334,P=0.002、x2=5.910,P=0.015、x2=5.240,P=0.022)、失败组剖宫产发生率[72.2％(52/72)]明显高于成功组[34.1 ％(43/126),x2=26.641,P=0.001)].结论 手转胎头术能使难产变顺产,降低剖宫产率,减少母儿并发症,但须积极预防、处理导致手转胎头术失败的原因,对矫正失败后继续矫正及试产应慎重.     

Evidence-Based Pain Management and Palliative Care in Issue Four for 2009 of The Cochrane Library

ABSTRACT

The Cochrane Library of Systematic Reviews is published quarterly. Issue 4 for 2009 contains 4027 complete reviews, 1906 protocols for reviews in production, and 11447 one-page summaries of systematic reviews published in the general medical literature. In addition, there are citations of 600,000 randomized controlled trials, and 12,200 cited papers in the Cochrane methodology register. The health technology assessment database contains over 7500 citations. This edition of the Library contains 90 new reviews, of which 19 have potential relevance for practitioners in pain and palliative medicine.     

Wie zuverlässig sind Angaben zu nichtentzündlichen ausgedehnten Schmerzen?

ZusammenfassungFragestellung Es wurde geprüft, wie sich der Differenziertheitsgrad zweier Schmerzmessmethoden auf Angaben zur Ausgedehntheit klinischer Schmerzen auswirkt. Zugleich wurde der Referenzzeitraum variiert, über den die Patienten berichten sollten.Methode Erfasst wurde der Einfluss zu Lasten der Befragungsdifferenziertheit durch den Vergleich zweier Körperschema-Bildvorlagen. Drei Referenzzeiträume (Schmerz aktuell, letzte Woche, letztes halbes Jahr) wurden vorgegeben.Ergebnisse Patienten mit ausgedehnten Schmerzen gaben bei differenzierter Befragung um so mehr Schmerzen an, je weiter die Schmerzen zurück lagen und je größer der Berichtszeitraum war. Patienten mit gelenknahen Schmerzen gaben bei hoch differenzierter Befragung weniger ausgedehnte Schmerzen in der Vergangenheit an als bei globaler Einschätzung. Patienten mit Rückenschmerzen berichteten bei differenzierter Befragung zum aktuellen Schmerz über weniger ausgedehnte Schmerzen als bei globaler Befragung.Schlussfolgerung Die Angaben zur Schmerzausdehnung variieren vor allem bei Patienten mit ausgedehnten Schmerzen in Abhängigkeit von der Differenziertheit der Befragung. In diesen Fällen ist die Wahrscheinlichkeit erhöht, dass sich die Beschwerdesymptomatik zumindest teilweise erst in der Reaktion auf die situativen Befragungsbedingungen konstituiert und daher nicht auf andere Befragungsbedingungen generalisiert werden kann.