RF-Ⅱ复位固定加cage椎间融合治疗腰椎滑脱症的探讨

目的:应用RF-椎弓根系统复位固定、后路全椎板减压加斜向植入单枚螺纹状cage的椎间融合术治疗腰椎滑脱症。方法:对49例腰椎滑脱症病人,采用全椎板减压、RF-脊柱内固定系统复位固定,并以后路单枚椎间融合器后斜向植入技术进行治疗。术后随访观察临床症状和体征,定期摄X线片,并与术前比较。结果:术后随访时间为4～36mo,平均20mo,9例°滑脱和28例°滑脱完全复位,12例°滑脱复位达100%。滑脱椎体均获得骨性融合。37例腰腿疼症状体征消失,11例基本消失,1例无改善,优良率为97.9%。术后无内固定物松动、断裂、椎间融合器下沉等并发症。结论:RF-椎弓根系统和单枚螺纹状cage在治疗腰椎滑脱症中具有协同作用。增强腰椎固定后的稳定性,并能保证可靠的融合,提高了椎间的融合率,是治疗腰椎滑脱症的理想术式。     

RF系统治疗腰椎滑脱症的体会

介绍了RF系统在治疗腰椎滑脱症中的适应证、技术及注意事项。自1993年以来我院共用此法治疗并随访32例，男16例，女16例．年龄27～70岁，Ⅰ°18例，Ⅱ°12例，Ⅲ°2例。L56例，L424例，L32例，其中有神经症状的21例行椎板减压术。术后2周内x线片复查均复位。除1例因螺钉折断二次手术外，25例症状未复发．优良率为78．l％。     

后路内固定辅助复位加360°融合术治疗腰椎滑脱症

【目的】总结应用后路内固定辅助复位加360°融合术治疗腰椎滑脱症的效果。【方法】2001年3月至2002年8月,使用后路切开椎弓根钉固定系统辅助复位加360°椎间融合术治疗成人峡部裂性腰椎滑脱症23例,其中Ⅰ度滑脱7例、Ⅱ度16例,均伴有腰椎不稳症,或不同程度椎管狭窄症和神经症状。【结果】随访3～20个月,平均13个月,滑脱椎体复位率87％,随访8个月以上者15人,14人获骨性融合。临床疗效依侯树勋等制定标准,优13例,良8例,可2例,差0例,优良率91％。【结论】后路内固定辅助复位加360°融合术是治疗有手术指征的成人峡部裂性腰椎滑脱症的极佳方法。     

后路复位椎弓根钉内固定治疗腰椎滑脱症33例疗效分析

目的：探讨腰椎滑脱症的手术治疗方法。方法：2004年12月-2007年6月对33例Ⅱ～Ⅲ度的腰椎滑脱症患者采用腰椎管减压、内固定复位、横突间植骨或横突间植骨加Cage手术进行治疗,比较手术前、后临床症状和X线片滑脱复位程度。结果：术后平均随访12个月,25例症状完全消失,5例症状基本消失,优良率为90．91％,29例解剖复位,解剖复位率达87．88％。结论：后路复位椎弓根钉内固定治疗腰椎滑脱症效果较好,值得临床推广。     

推拉力螺钉加角度螺钉经椎弓根治疗腰椎滑脱

作者应用推位力螺钉加角度螺钉治疗腰椎滑脱症１６例，其中峡部崩裂７例，退行性变５例，创伤性４例，滑脱等级Ⅰ°７例，Ⅱ°６例，Ⅲ°３例。全部病例均伴有腰痛或腰腿痛。术后经３～３２个月（平均１８个月）的随访，除１例矫正过度外，其余均改善滑移等级Ⅰ°以上。腰痛或腰腿痛症状均获明显改善，１２例症状、体征完全消失。Ｘ线片示：椎体间及侧后方植骨隔合满意。全组无马尾及神经根损伤。作者认为本方法具有：结构简单，操作方便；最少的内固定节段；三维空间多重矫正力；内固定牢靠等优点。     

后路椎间融合器结合新型椎弓根钉系统治疗腰椎滑脱症

目的 探讨纯钛多孔涂层后路椎间融合器结合新型椎弓根钉系统对腰椎滑脱症的治疗效果。方法 33例腰椎滑脱症病人．采用后路全椎板切除减压、纯钛多孔涂层后路椎问融合器行椎间融合、新型椎弓根钉系统内固定治疗。结果 33例术后均随访，时间6～36个月，平均18．6个月。本组患者术后无神经损伤和切口感染，动态摄片观察无融合器移位、椎弓根螺钉松脱、断裂等并发症。按Brantigan评价标准评定结果：优2l例、良10例、可2例、差0例。结论 纯钛多孔涂层后路椎间融合器结合新型椎弓根钉系统治疗腰椎滑脱症，具有椎管减压充分、椎体复位好、术后能立即改善疼痛症状、立即稳定椎体、病人可早期下床等优点，是一种治疗腰椎滑脱症较理想的方法。     

腰椎管减压植骨坚强连接(SOCON)复位器治疗腰椎滑脱

[目的]观察应用腰椎管减压、横突间植骨和坚强连接(SOCON)复位器治疗腰椎滑脱合并腰椎管狭窄患者的早期疗效.[方法]对18例腰椎滑脱患者采用腰椎管减压,横突间植骨和SOCON内固定手术.[结果]18例患者中,15例症状完全消失,达83%,14例Ⅰ°滑脱完全复位,3例Ⅱ°滑脱完全复位,解剖复位率达94%.[结论]SOCON复位器治疗腰椎滑脱,效果良好,复位满意.     

椎弓根钉复位固定椎间植骨治疗腰椎滑脱症

目的 观察腰椎管减压、椎弓根钉复位内固定联合植骨融合治疗腰椎滑脱症的早期临床效果.方法 对28例腰椎滑脱症患者,经过严格保守治疗失效后,行腰椎管减压、椎弓根钉复位内固定联合植骨融合,术后通过X线片或MRI检查了解复位和融合情况.结果 28例患者中,12例滑脱完全复位;16例滑脱基本复位,融合率达到96.4%.结论 椎弓根钉复位内固定联合植骨融合治疗腰椎滑脱症早期效果良好,复位满意,固定牢靠,融合率高.     

椎间融合器在腰椎滑脱症中的应用分析

目的评估椎间融合器在腰椎滑脱症患者手术治疗中的应用效果。方法 2009年3月～2010年3月间,对我科收治的40例腰椎滑脱患者应用全椎板减压、椎弓根器械复位固定、椎体间放入PEEK融合器植骨融合。所有病例进行定期随访并观察椎间融合情况。结果 23例置入融合器后达到复位或基本复位,17例通过提拉螺钉进行补充复位。术中硬脊膜撕裂3例,1例裂口较小,术中未予处理;2例裂口较长,术中缝合后以脑棉片覆盖,紧密缝合腰背筋膜及皮肤切口,术后采取去枕头低脚高位,未见脑脊液漏出。术后出现神经根刺激症状2例,予以脱水、营养神经治疗,均恢复满意,未遗留神经症状。结论采用后路腰椎椎体间融合术治疗腰椎滑脱症能发挥撑开复位和融合的双重作用,安全有效。     

腰椎滑脱复位系统加后外侧植骨融合术治疗腰椎滑脱临床研究

目的:通过对15例腰椎滑脱症的治疗,探讨腰椎滑脱复位系统加后外侧植骨融合术在腰椎滑脱症中的治疗作用,阐述滑脱复位的临床意义。方法:均使用腰椎复位系统加后外侧植骨融合术治疗,并进行疗效评定。结果:本组病例治疗后均获得随诊,随诊时间平均16 .4月,随诊X线片显示内固定牢固,螺钉、棒无折断,复位无丢失,无感染,无脊神经根损伤等并发症,植骨融合良好,融合率为10 0 % ,疗效优8例,良5例,可2例。结论:腰椎滑脱复位系统加后外侧植骨融合术治疗腰椎滑脱,能充分完成后路减压,滑脱椎体满意复位,并能保证可靠的融合,是一种较为理想的治疗腰椎滑脱症的术式。     

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.