血清降钙素原定量检测在血流感染患者中的临床应用价值研究

目的探讨血清降钙素原(PCT)定量检测在血流感染患者中的临床应用价值。方法采用回顾性研究对该院220例老年住院患者同时送检的血培养和PCT检测结果进行分析。比较血清PCT水平与血培养结果的关系及其在革兰阴性细菌、革兰阳性细菌和假丝酵母菌之间的差异。结果血培养阳性率为20.45%,在血培养阳性标本中PCT阳性率为64.44%;在血培养阴性标本中PCT阴性率为44.00%。血培养阳性患者PCT中位数为(8.00±17.39)μg/L,血培养阴性患者PCT为(4.46±11.05)μg/L,差异有统计学意义(P=0.007)。革兰阴性菌组PCT为(11.25±23.37)μg/L,假丝酵母菌组PCT为(11.21±13.59)μg/L,均高于革兰阳性菌组PCT水平(5.42±14.81)μg/L,差异有统计学意义(P=0.011)。结论定量检测PCT可辅助快速排除和诊断血流感染,与血培养联合检测可提高诊断和鉴别诊断的准确性。     

血培养和血清降钙素原检测对血流感染者早期诊治的临床价值

目的探讨血培养和血清降钙素原(PCT)联合检测对血流感染患者早期诊治的临床价值。方法对625例患者血标本用酶联荧光分析法(ELFA)测定血清PCT,同时进行血培养,并对23例血培养阳性的重症患者血清PCT进行多次检测和结果分析。结果血培养结果为阴性的患者(阴性组)PCT阳性率为41.01%(0.05~2.58μg/L),血培养结果为阳性的患者(阳性组)PCT阳性率为80.77%(0.05~200.00μg/L)。阳性组PCT阳性率高于阴性组,差异有统计学意义(χ2=65.12,P0.01)。假丝酵母菌、多种细菌、革兰阴性杆菌和革兰阳性球菌感染患者的PCT阳性率分别为100.00%、100.00%、92.11%和56.81%。对23例血培养阳性的重症患者进行了多次PCT检测,治疗过程中PCT水平逐渐降低者预后较好,PCT10μg/L且持续维持高水平者,其预后较差。结论同时进行血培养和PCT检测对血流感染患者的早期诊治有着重要的临床价值。     

血清降钙素原检测在呼吸道感染患者临床诊断中的应用

目的探讨血清降钙素原(procalcitonin,PCT)在呼吸道感染患者临床诊断中的应用价值。方法对2013年6月—2015年6月解放军白求恩国际和平医院收治的呼吸道感染414例的血清PCT检测结果结合痰培养及9项呼吸道病原体Ig M抗体联合检测结果进行分析。结果 414例呼吸道感染中PCT检测阳性132例(31.88%)。痰培养阳性225例(54.35%),其中单纯细菌阳性160例(单纯革兰阳性菌11例,单纯革兰阴性菌96例,2种及以上细菌阳性53例),单纯假丝酵母菌阳性44例,假丝酵母菌合并细菌阳性21例。痰培养无病菌生长的189例9项呼吸道病原体Ig M抗体检测阳性66例(34.92%),全阴性123例(65.08%)。痰培养及9项呼吸道病原体Ig M抗体联合检测不同结果间PCT中位数及其阳性率比较差异均有统计学意义(P0.05)。痰培养无病菌生长且9项呼吸道病原体Ig M检测全阴性与痰培养单纯革兰阴性菌阳性、2种及以上细菌阳性、假丝酵母菌合并细菌阳性PCT中位数及其阳性率比较差异均有统计学意义(P0.05)。痰培养无病菌生长而9项呼吸道病原体Ig M抗体检测阳性与痰培养单纯革兰阴性菌阳性、2种及以上细菌阳性的PCT中位数及其阳性率比较差异亦均有统计学意义(P0.05)。414例呼吸道感染中PCT阳性患者病死率(15.15%)明显高于PCT阴性患者病死率(3.55%),差异具有统计学意义(P0.05)。结论血清PCT检测联合痰培养及9项呼吸道病原体Ig M抗体检测对诊断和鉴别诊断呼吸道感染具有重要的参考价值。血清PCT检测可作为快速排除和诊断细菌性呼吸道感染的重要手段。     

血清降钙素原和C反应蛋白在血流感染中的诊断价值

目的探讨血清降钙素原(PCT)和C反应蛋白(CRP)水平对血流感染患者的临床诊断价值。方法对我院2012年4月至2015年3月期间住院患者的血培养及血清PCT和CRP水平进行回顾性研究分析。采用MannWhitney U检验分别比较血培养结果与PCT及CRP水平的关系,并绘制ROC曲线比较PCT及CRP对血流感染的诊断价值。结果血培养阳性组和阴性组的PCT水平分别为3.26(0.83-12.00)μg/L,0.31(0.21-0.43)μg/L(P0.000)。血培养阳性组和阴性组的CRP水平为77.52(24.92-129.58)mg/L,31.84(11.79-45.05)mg/L(P0.004)。PCT和CRP对血流感染的最佳临界值分别为0.72μg/L和57.08mg/L,ROC曲线下面积分别为0.91和0.75。血培养革兰阴性细菌组与阳性细菌组PCT水平差异有统计学意义,而CRP水平差异无统计学意义。结论CRP和PCT均可作为血流感染的早期快速诊断指标,且PCT诊断血流感染的特异性及敏感性均高于CRP。PCT对革兰阴性细菌血流感染患者的诊断价值较阳性细菌血流感染诊断价值高。     

血清降钙素原水平在血流感染中的临床价值

目的探讨血清降钙素原(PCT)水平在血流感染患者中的临床价值。方法回顾性分析我院568例同时送检PCT检测和血培养的结果,其中有效研究对象538例;比较PCT水平与血培养结果的关系,同时比较PCT在革兰阴性菌、革兰阳性菌及真菌之间的差异;选取多次行PCT检测的血培养阳性患者,并依据3周内转归分为好转组、迁延组及死亡组,比较不同转归患者PCT差异。各组间PCT差异比较采用秩和检验;预后分析中采用Fisher’s精确概率法。结果血培养阳性患者PCT值[3.39(0.69~6.52)μg/L]明显高于血培养阴性患者[0.31(0.09~1.48)μg/L],差异有统计学意义(P0.05);G-菌、G+菌及真菌感染患者PCT分别为4.39(1.80~10.85)μg/L、1.98(0.42~4.05)μg/L及0.62(0.39~3.98)μg/L,差异有统计学意义(P0.05);根据受试者工作特征曲线(ROC),PCT临界值设定为3.315μg/L时,区分G-菌与真菌血流感染的灵敏度为67.9%,特异度为75.0%;设定为4.1μg/L时,PCT区分G+菌与G-菌血流感染的灵敏度为57.7%,特异度为76.5%;46例多次PCT检测血培养阳性患者中,PCT呈下降趋势时患者预后较好。结论血清PCT水平的检测有助于快速排除和诊断血流感染,同时有助于区分G-菌、G+菌及真菌所致的感染;动态监测PCT变化趋势有助于患者预后的判断。     

血清降钙素原作为菌血症预示因子临床价值的研究

目的探讨血清降钙素原(PCT)与菌血症之间的关系,评价血清PCT在预测血培养确证的菌血症方面的诊断价值。方法采用回顾性研究,以同时进行血培养及PCT检测的1 690例患者为研究对象,对其结果进行分析。研究对象分为3组,即血培养阳性组(129例)、血培养阴性组(1 463例)和血培养污染组(98例),比较3组之间PCT浓度的差异,并将血培养阳性组分为革兰阴性菌组、革兰阳性菌组和假丝酵母菌组,从而进一步比较PCT浓度在阳性组内的差异。结果血培养阳性组PCT浓度高于血培养阴性组和血培养污染组[中位数(四分位数)分别为2.62(0.37~12.80)、0.17(0.07~0.62)和0.20(0.09~0.72)ng/mL,P0.000 1]。革兰阴性菌组、假丝酵母菌组和革兰阳性菌组PCT阳性率分别为74.5%、37.5%和66.7%,PCT浓度[中位数(四分位数)]分别为6.24(0.43~16.09)、0.47(0.22~3.18)和1.09(0.24~4.05)ng/mL,革兰阴性菌组PCT浓度明显高于革兰阳性菌组和假丝酵母菌组(P0.05)。结论除临床其他指标外,PCT作为一种可靠的检测指标,可用于排除血培养的污染和非感染性疾病情况,为菌血症提供早期的预示信息,从而改善和提高菌血症诊断的准确性,避免非必需的抗菌药物治疗,对临床诊疗具有很大的临床意义。     

不同感染性指标在血流感染早期诊断中的应用价值

目的探讨降钙素原(PCT)、C反应蛋白(CRP)、白细胞(WBC)计数、中性粒细胞(NEU)绝对数、NEU比率在早期辅助诊断血流感染(BSI)中的临床应用价值。方法回顾性分析2013年1月-2015年5月安徽医科大学第一附属医院的住院患者中送检血培养并同时检测PCT、CRP和血常规的患者1 835例。按血培养结果将患者分为血培养阳性组和血培养阴性组,比较两组中PCT、CRP、WBC、NEU和NEU比率的水平变化,并绘制受试者工作特征(ROC)曲线评价各指标的诊断价值。结果血培养阳性患者189例,革兰阴性菌109株(57.7%),革兰阳性菌60株(31.7%),念珠菌20株(10.6%)。血培养阳性组PCT、CRP、WBC、NEU和NUE比率的中位数分别为6.04 ng/mL、90.00 mg/L、10.00×10~9/L、8.22×10~9/L、0.857 1;血培养阴性组PCT、CRP、WBC、NEU和NUE比率的中位数分别为0.31 ng/mL、38.52 mg/L、8.96×10~9/L、6.33×10~9/L、0.769 8。血培养阳性组的各项结果均明显高于血培养阴性组(P0.05)。革兰阴性细菌组患者血清PCT 9.12(1.57~32.38)ng/mL明显高于革兰阳性细菌组2.62(1.00~12.90)ng/mL(P0.05)和念珠菌组1.40(0.67~12.88)ng/mL(P0.05),且肠杆菌科细菌患者的PCT值11.45(2.20~37.58)ng/mL明显高于不发酵糖革兰阴性杆菌1.93(0.70~13.37)ng/mL(P0.05)。细菌组的CRP 92.17(45.11~151.08)mg/L明显高于念珠菌组56.65(23.32~101.05)mg/L(P0.05),且革兰阳性细菌组CRP 93.93(46.67,147.86)mg/L高于念珠菌组(P0.05)。以血培养阳性为阳性标准绘制ROC曲线,PCT、CRP、WBC、NEU和NUE比率的AUC分别为0.793、0.662、0.555、0.591和0.665(P0.05),对BSI均有一定诊断价值,其中PCT、CRP和NUE比率的诊断价值最大。结论 PCT、CRP可作为BSI的辅助诊断指标,PCT水平对BSI的早期诊断价值更高。早期检测PCT和CRP可以及时帮助BSI患者判断病原菌类型,及早治疗改善预后。     

降钙素原、C反应蛋白和白细胞介素-6在血液病患者血流细菌感染中的诊断意义

目的:探讨降钙素原(PCT)、C反应蛋白(CRP)和白细胞介素-6(IL-6)对血液病患者血流细菌感染的临床诊断意义,为血液病患者感染的用药提供依据。方法:选取2014年01月02日至2018年01月27日期间的3631例次送检血培养标本为研究对象,同时检测PCT、CRP和IL-6水平(IL-6送检1587例次),根据检验结果将样本分为血培养阳性组208例和血培养阴性组3423例;血培养阳性组又分为革兰阳性菌感染组34例次与革兰阴性菌感染组174例次。分别对比血培养阳性组与血培养阴性组、革兰阳性组与革兰阴性组的PCT、CRP、IL-6水平,并对例次较多的AML、ALL和NHL患者比较了血培养阳性与阴性组的PCT,CRR和IL-6水平,采用R语言3. 4. 4进行分析。结果:血培养阳性组和阴性组的PCT中位数水平分别为0. 41(0. 04-103. 34)μg/L和0. 20(0. 02-200)μg/L(P 0. 001),CRP中位数水平分别为9. 49(0. 1-370) mg/dl和5. 42(0-370) mg/dl(P 0. 001),IL-6水平中位数分别为186. 1(2. 0-5000) pg/ml和52. 65(1. 5-5000) pg/ml(P 0. 001)。革兰阳性组和革兰阴性组的PCT水平中位数分别为0. 20(0. 05-93. 83)μg/L和中位数0. 58(0. 04-103. 34)μg/L(P=0. 006),CRP水平中位数分别为9. 19(0. 1-35. 3) mg/dl和9. 49(0. 1-370) mg/dl(P=0. 300),IL-6水平中位数分别为83. 01(5. 61-1500) pg/ml和208(2. 0-5000) pg/ml(P=0. 357)。AML、ALL、NHL患者中除ALL的CRP水平之外,其余指标均有统计学差异。结论:血液病患者血流感染者PCT、CRP和IL-6较非血流感染者均显著上升,可作为早期诊断指标;革兰阳性感染者与革兰阴性感染者中PCT水平亦有显著性差异,可作为重要的辅助标准。     

降钙素原及C-反应蛋白在细菌性血流感染诊断中的应用价值

目的探讨降钙素原(PCT)和C-反应蛋白(CRP)在细菌性血流感染监测中的临床意义,为血流感染的早期诊断提供依据。方法回顾性分析北京市昌平区医院重症监护病房(ICU)进行血培养的187例患者的临床资料,根据血培养结果分为阳性组(29例)和阴性组(158例),血培养采血当日测定PCT、CRP,并对两组数据进行比较;血培养阳性组分为革兰阳性菌组(9例)与革兰阴性菌组(20例),并对两亚组患者的PCT、CRP水平进行比较。结果血培养阳性组PCT水平(中位数5.80ng/mL)明显高于阴性组(中位数0.45ng/mL),差异有统计学意义(P0.01);阳性组CRP水平(中位数59.63mg/L)亦明显高于阴性组(中位数28.66mg/L),差异有统计学意义(P0.01)。PCT的ROC曲线下面积(AUC)为0.818(95%CI:0.731~0.905),而CRP的AUC为0.664(95%CI:0.554~0.773)。革兰阳性菌组PCT水平(中位数2.45ng/mL)与革兰阴性菌组(中位数7.90ng/mL)差异无统计学意义(P0.05);革兰阳性菌组CRP水平(中位数59.63mg/L)与革兰阴性菌组(中位数53.88mg/L)差异亦无统计学意义(P0.05)。结论 PCT和CRP在细菌性血流感染早期诊断中具有参考价值,而PCT较CRP有更高的准确性,故血流感染早期检测PCT能及时、有效地指导临床合理应用抗生素,从而降低病死率。     

血培养革兰阳性与阴性菌感染血清降钙素原水平比较

目的探讨患者血清降钙素原（PC T ）水平对区分血培养阳性及革兰阳性（G＋）菌和革兰阴性（G-）菌所致感染的临床应用价值。方法通过对患者血标本细菌培养阳性的标本进行革兰染色及同时检测患者血清PC T水平,比较PC T浓度在革兰阴性细菌及阳性细菌之间的差异,并对其进行敏感性和特异性分析。结果血培养阴性患者PCT为（1．02±0．65）ng/mL ,血培养阳性患者PCT为（8．55±3．62）ng/mL ;G -菌感染组血清PCT含量为（10．78±4．83） ng/mL ;G＋菌感染组血清PCT含量为（4．22±3．16） ng/mL ,两者比较差异有统计学意义（P＜0．05）。结论血清PC T水平测定可作为快速排除和诊断血流感染的辅助检测指标,同时有助于迅速区分G＋菌及G-菌所致的血流感染。     

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.     

Dissociable correlates of two classes of retrieval processing in prefrontal cortex

Although substantial evidence suggests that the prefrontal cortex (PFC) implements processes that are critical for accurate episodic memory judgments, the specific roles of different PFC subregions remain unclear. Here, we used event-related functional magnetic resonance imaging to distinguish between prefrontal activity related to operations that (1) influence processing of retrieval cues based on current task demands, or (2) are involved in monitoring the outputs of retrieval. Fourteen participants studied auditory words spoken by a male or female speaker and completed memory tests in which the stimuli were unstudied foil words and studied words spoken by either the same speaker at study, or the alternate speaker. On "general" test trials, participants were to determine whether each word was studied, regardless of the voice of the speaker, whereas on "specific" test trials, participants were to additionally distinguish between studied words that were spoken in the same voice or a different voice at study. Thus, on specific test trials, participants were explicitly required to attend to voice information in order to evaluate each test item. Anterior (right BA 10), dorsolateral prefrontal (right BA 46), and inferior frontal (bilateral BA 47/12) regions were more active during specific than during general trials. Activation in anterior and dorsolateral PFC was enhanced during specific test trials even in response to unstudied items, suggesting that activation in these regions was related to the differential processing of retrieval cues in the two tasks. In contrast, differences between specific and general test trials in inferior frontal regions (bilateral BA 47/12) were seen only for studied items, suggesting a role for these regions in post-retrieval monitoring processes. Results from this study are consistent with the idea that different PFC subregions implement distinct, but complementary processes that collectively support accurate episodic memory judgments.     

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.     

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.