Amplatzer封堵器治疗动脉导管未闭效果评价

目的 :评价 Amplatzer封堵器治疗动脉导管未闭 ( PDA)的疗效。方法 :6例患者经静脉使用 6 F输送鞘管置入 Amplatzer封堵器。术后 2 4 h和 6个月行超声心动图检查。结果 :PDA平均最小直径为 4 .4± 1.6 mm( 3～8m m) ,6例封堵均获成功。造影示无残余分流 5例 ,微量残余分流 1例 ,2 4 h超声心动图检查残余分流消失。无并发症发生。结论 :应用 Am platzer封堵器经导管封堵动脉导管未闭安全简便、疗效可靠 ,是治疗动脉导管未闭的理想方法     

超声心动图对蘑菇伞封堵器治疗动脉导管未闭的随访

目的　探讨超声心动图在随访蘑菇伞封堵器治疗动脉导管未闭 (PDA)中的作用。　方法　选择经蘑菇伞封堵器治疗后的 PDA患者 2 4例 ,应用超声心动图进行封堵疗效观察及心脏功能变化随访 ,平均随访 10个月。　结果　 2 DE:在位封堵器呈“工”字形 ,在主、肺动脉侧应无占位作用。本组未见封堵器占位效应。CDFI:可见中央性分流和 /或边缘性分流。本组有 1例封堵后边缘性残余分流宽度为 3mm ,未予更换封堵器而出现术后溶血 ;1例边缘性残余分流宽度为 2 .5 m m ,术后 2 0个月仍有残余分流 ;1例术后有少量残余分流 ,10天后分流消失。封堵术后 10个月随访肺动脉压、左房室内径均显著下降。　结论　超声心动图对 PDA封堵治疗术后残余分流观察、血流动力学评价有较好的应用价值     

国产改良Amplatzer封堵伞经导管治疗动脉导管未闭

目的 :应用国产Amplatzer封堵器经导管治疗动脉导管未闭 (PDA)患儿并对其进行评价。方法 :经股静脉递送封堵器 ,术后选择性降主动脉造影及心脏B超评价其结果。结果 :12例PDA最窄处直径为 3.0～ 8.0mm ,8例PDA封堵后即刻杂音消失 ,主动脉弓降部部造影显示无残余分流 ,3例 2d后杂音消失 ,心脏超声示心脏大小恢复正常 ;1例因导管较粗 ,压差较大 ,封堵后仍有少量渗透性残余分流 ,但复查心脏超声显示心脏较前明显减小。 3月后复查超声残余分流消失。结论 :应用国产Aamplatzer封堵伞经导管治疗中 ,大型动脉导管未闭是安全有效的介入方法 ,疗效满意     

应用Amplatzer封堵器治疗动脉导管未闭疗效观察

目的　应用Amplatzer封堵器治疗动脉导管未闭 (patentductusarteriosus ,PDA)并评价其临床疗效。 方法　 7例患者 ,女 2例 ,男 5例 ,年龄 2 .5～ 5 6岁 ,体重 10 .0～ 73 .5kg ,均经超声心动图确诊。术中行右心导管测压后 ,进行主动脉弓降部造影 ,以确定PDA的位置、形状及最窄直径。选择大于所测PDA最窄直径 3～ 6mm的封堵器 ,于透视下经输送鞘管将其封堵于PDA处。 10分钟后重复造影 ,若封堵器形状、位置满意 ,无或仅有微～少量残余分流时 ,可释放封堵器。术后 1周 ,1～ 6个月行超声心动图、心血管摄片检查 ,观察残余分流情况、封堵器位置及心脏大小的变化。结果　主动脉弓降部造影显示PDA均呈管型 ,PDA最窄直径平均为 5 .5± 3 .1mm ( 3 .0～ 11.8mm )。均有肺动脉高压 ,其中轻度 6例 ,重度 1例。 7例封堵器均放置成功。造影示 6例即刻完全封堵 ,1例有微量残余分流 ,此患者术后 18小时发生急性溶血 ,经内科保守治疗治愈 ,术后 1个月彩色多普勒超声心动图示残余分流消失 ,随访 6个月 7例患者心脏均有不同程度缩小。结论　应用Amplatzer封堵器治疗PDA是一种方法简便 ,成功率高 ,近期疗效可靠的介入方法     

国产封堵器对动脉导管未闭合并肺动脉重度高压试封堵治疗

目的:用国产封堵器对动脉导管未闭(PDA)合并肺动脉高压(PH)试封堵疗效.方法:选用国产PDA蘑菇伞封堵器对11例患者进行试封堵治疗,于术后1d、1个月内、3个月复查胸片、心电、超声.结果:7例术后未见残余分流.4例术后可见残余分流,其中2例24h后复查超声分流消;1例第5天复查超声分流消失;另1例于1个月后复查超声残余分流消失.所有患者均未发生溶血等严重并发症.结论:动脉导管未闭合并肺动脉高压的患者,采用本方法安全有效.     

Amplatzer封堵器治疗动脉导管未闭的即刻及短期疗效观察

目的　应用Amplatzer封堵器治疗先天性动脉导管未闭 (PDA)并评价其即刻及短期疗效。方法　 5例患者 ,男 2例 ,女 3例 ,年龄 6-2 7(18.40± 7.2 3 )岁 ,经临床、X线、超声心动图初诊为PDA ,并经术中造影证实 ,测量PDA最窄处内径 ,选择适当型号的输送鞘及封堵器 ,封堵缺损处。术后即刻杂音听诊及 2 4小时后超声心动图复查以评价疗效。结果　造影测量PDA最窄直径为 4-7(5 .2 0± 1.16)mm ,选择封堵器直径为 8-18(12 .80± 3 .2 5 )mm。手术全部获得成功。 4例杂音当场完全消失 ,术后 2 4小时及 1月复查超声心动图亦未见分流 ;1例存留不足 2级的收缩期杂音 ,术后超声心动图见微量残存分流 ,1月后复查残存分流消失。结论　Amplatzer封堵器治疗动脉导管未闭安全、有效、创伤小 ,可避免开胸治疗     

应用Amplatzer封堵器治疗动脉导管未闭的疗效评价

目的评价Amplatzer封堵器经导管治疗动脉导管未闭的疗效.方法经7F导管置入Amplatzer封堵器,术后行侧位降主动脉造影、超声心动图检查有无残余分流.结果6例全部一次封堵成功,无任何并发症发生.术后10 min行侧位降主动脉造影示2例有少量残余分流.术后1 d行超声心动图检查无残余分流,随访3～22个月无再通或残余分流.结论应用Amplatzer封堵器经导管治疗动脉导管未闭是一种安全有效的介入方法,操作简便,成功率高,疗效可靠.     

Amplatzer法封堵治疗房间隔缺损及动脉导管未闭--附56例临床观察

目的探讨应用Amplatzer法封堵治疗房间隔缺损及动脉导管未闭的临床疗效及价值。方法回顾性分析我院收治的56例患者的临床资料。结果56例患者，其中房间隔缺损11例，动脉导管未闭45例，年龄5个月至70岁，均在X线透视、造影及经胸超声心动图监视下经导管置入Amplatzer封堵器治疗。术后48小时、1个月，3个月及6个月行经胸超声及X线胸片检查随访，全组56例封堵器置入均获成功，技术成功率100％。术后即刻经胸超声及造影显示38例(67．9％)无残余分流，18例(32．1％)存在微～少量残余分流。48小时后心脏超声显示分流完全消失53例(94．6％)，微量残余分流3例(5．4％)。术后随访6个月，所有病例无残余分流及封堵器脱落。但有1例PDA封堵后8小时并发溶血，经过内科治疗无效，术后48小时外科手术取出封堵器并进行缝合治疗。结论Amplatzer法是治疗房间隔缺损和动脉导管未闭的一种操作简单、技术成功率高、疗效可靠易行的介入方法。     

蘑菇伞封堵器封堵动脉导管未闭的即刻及短期疗效观察

目的　探讨经皮经股静脉途径蘑菇伞封堵器封堵治疗动脉导管未闭 (PDA)的即刻及短期疗效。　方法　 4 6例单纯 PDA患者 (男性 2 0例 ,女性 2 6例 ,年龄 10 .3± 10 .6岁 ,体重 2 4 .1± 14 .7kg,X线主动脉造影测量PDA最窄处的直径 6 .0± 2 .1mm ,长度 7.6± 1.6 mm。采用蘑菇伞动脉导管封堵器经皮经股静脉封堵治疗 PDA,应用 X线造影术观察即刻疗效 ,并以超声心动图观察短期疗效、随访半年。　结果　 4 6例患者封堵治疗的成功率为 95 .7% ,其中 1例发生急性溶血予手术取出封堵器 ,1例因选用最大封堵器未能完全封堵 PDA而予收回封堵器。即刻及 6个月内随访未发生封堵器脱落及其他严重并发症 ;术后即刻、30 m in、1天、1个月、6个月分流完全阻断率为 5 6 .8% ,86 .4 % ,88.6 % ,95 .5 %和 97.7%。最终所选择的封堵器尺寸 (D2 )与 X线造影测量的 PDA最小直径 (D1 )之间呈线性相关关系 :D2 =1.6 D1 - 0 .1(r=0 .96 ,SE=1.0 4 )。　结论　蘑菇伞动脉导管封堵器治疗 PDA痛苦少、安全性高、短期疗效好 ,长期疗效尚需多中心大规模临床验证。     

国产封堵器介入治疗动脉导管未闭32例临床观察

目的:国产蘑菇伞型封堵器介入治疗动脉导管未闭(PDA)的临床观察及其疗效分析.方法:32例PDA患者于主动脉弓降部造影,测量动脉导管大小,在透视下经传送装置将国产蘑菇伞型封堵器置入动脉导管内,使之在动脉导管最窄处固定,即刻造影,术后行超声心动图(UCG)检查.结果:全组技术成功率100%;主动脉弓造影即刻无分流26例;5例存在微量或少量残余分流,经UCG复查,其中4例术后48h分流消失,1例术后3个月分流消失;封堵后即刻肺动脉平均压由封堵前(40.0±15.3)mmHg下降至(33.0±14.1)mmHg(P＜0.05);术后3个月左、右心室舒张末期容积均较术前缩小(92.0±29.4)ml vs(110.0±30.2)ml,(54.0±11.3)ml vs(63.0±15.0)ml,P＜0.05.结论:应用国产蘑菇伞型封堵器治疗动脉导管未闭操作方法简便,治疗范围广,成功率高,不失为很有前途的代替进口封堵器的介入性治疗方法.     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

Objective：To investigate the gene expression of osteoprotegerin（OPG） and osteoclast differentiation factor（ODF） in the bone tissue of patients with hip fracture due to osteoporosis. Methods：OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers（over 50 years old） with hip fracture（Observer Group） and 30 cases of hip facture sufferers with no osteoporosis（Control group） were analyzed with the Semi-Quantitative RT-PCR method. Results：The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion：Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.     

The clinicopathological and immuohistochemical analysis of solid-pseudopapillary tumor of the pancreas： report of 9 cases

Objective：To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas（SPTP）. Methods：Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin（HE） staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results：Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin（9/9 cases）, AAT（9/9 cases）, NSE（9/9 cases）, ACT（7/9 cases）, CK20（2/9 cases）, CgA（1/9 cases）, S-100（3/gcases）, PR（4/gcases）, Syn（3/9 cases） and CD56（5/9cases）, negative in CEA and ER. Conclusion：SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.     

Dynamic Changes in Serum Estradiol and Progesterone levels in Patients of Premenstrual Syndrome with Adverse Flow of Liver-qi

Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P.     

Real-time Three-dimensional Echocardiography in Assessment of Left Ventricular and Right Ventricular Volumes

Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.     

SCREENING FOR A 21-CHROMOSOME ABNORMALITY IN PREIMPLANTED EMBRYOS OF ELDERLY WOMEN

Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.