后路减压、内固定与椎间融合器术治疗退变性腰椎滑脱症45例

目的:探讨运用后路腰椎管减压、内固定、植骨融合治疗退变性腰椎滑脱临床疗效。方法:从2006年8月至2012年10月,对45例退变性腰椎滑脱患者施行手术治疗。按Meyerding滑脱分类标准:其中Ⅰ度22例,Ⅱ度6例;L3-4滑脱5例,L4-5滑脱25例,L5-S1滑脱15例。本组45例均采用腰椎后路钉棒内固定及小关节后外侧植骨融合。结果:45例获得随访,术后平均随访15.3个月(10²2个月)。X线片显示:45例完全骨融合。临床效果评价:优32例,良9例,可6例。结论:后路减压、内固定与椎间融合器术治疗退变性腰椎滑脱效果良好,复位稳定。     

GSS椎弓根系统加后路减压融合治疗退变性腰椎滑脱

目的:探讨后路应用通用型脊柱内固定系统(general spine system,GSS)复位固定,减压,椎体间植骨融合治疗退变性腰椎滑脱症临床效果.方法:将102例退变性腰椎滑脱症患者经保守治疗无效后采用GSS椎弓根螺钉系统内固定,后路减压融合手术治疗进行回顾性分析,其中Ⅰ度滑脱83例,Ⅱ度滑脱19例.比较手术前后临...     

后路椎体间植骨融合椎弓根螺钉内固定治疗腰椎滑脱症

目的 观察腰椎管减压、椎弓根螺钉复位内固定和椎体间植骨融合手术治疗退变性及峡部裂性腰椎滑脱症患者的临床疗效.方法 从2004年10月～2009年5月间对54例腰椎滑脱患者行后路腰椎管减压、椎弓根螺钉复位内固定和椎体间植骨融合患者作随访研究.结果 经12～54个月,平均24个月随访,所有患者均获得了骨性融合,椎体滑脱复位率88.2%,腰腿疼痛消失,1例神经根损伤.按侯树勋等评价标准:优94.1%,良2.94%,可2.94% ,总优良率为97.04%.结论 对退变性及峡部裂性腰椎滑脱症患者行后路腰椎管减压、椎弓根螺钉复位内固定和椎体间植骨,具有骨性融合率高,椎间高度恢复和维持满意,手术简单,出血少等优点.     

RF-Ⅱ椎弓根系统复位内固定、椎管减压、椎体间植骨融合治疗腰椎滑脱症

目的：探讨RF-Ⅱ椎弓根系统复位内固定、椎管减压、椎体间植骨融合治疗腰椎滑脱症的疗效。方法：对27例腰椎滑脱症患者采用RF-Ⅱ椎弓根系统进行复位内固定、椎管减压、椎体间植骨融合联合手术治疗，并进行疗效评定。结果：本组优17例，良8例。可2例。本组椎体间植骨均融合良好，复位无丢失，内固定未见松动、断裂。结论：采用RF-Ⅱ椎弓根系统复位内固定、椎管减压、椎体间植骨融合术治疗腰椎滑脱症，植骨融合率高，是一种治疗腰椎滑脱症较为理想的术式。     

GSS内固定治疗腰椎滑脱33例

目的探讨GSS内固定治疗腰椎滑脱的可行性和疗效。方法采用GSS内固定治疗腰椎滑脱33例,其中男21例,女12例;年龄26～67岁,平均43岁。病程11个月～22年。L4滑脱12例,L5滑脱21例。观察GSS内固定治疗腰椎滑脱复位、减压、植骨融合和疼痛恢复情况。结果随访时间6～20个月,平均12个月。术后3～4个月复查X线片,椎体间及横突间植骨融合均达骨性愈合,所有病例下肢疼痛症状均消失。有18例达解剖复位,10例Ⅱ度滑脱复位达90%,5例Ⅲ度滑脱复位达80%。结论GSS内固定对腰椎滑脱复位后提供了早期稳定性,为椎体间的植骨融合提供了力学支持,从而达到更高的植骨融合率。     

RF—Ⅱ型椎弓根螺钉系统治疗腰椎滑脱

目的 观察采用腰椎管减压，椎体间植骨，RF-Ⅱ内固定治疗腰椎滑脱的临床疗效。方法25例腰椎滑脱患者采用腰椎管减压，椎体间植骨，RF-Ⅱ内固定手术进行治疗。术前X线检查按Meyerding滑脱分类标准，Ⅰ度滑脱2例，Ⅱ度滑脱17例，Ⅲ度滑脱5例，Ⅳ度滑脱1例。结果 术后平均随访13个月，比较手术前后临床症状和X线片滑脱复位程度，25例患者中，22例症状完全消失，21例达到解剖复位。结论 应用RF—Ⅱ型椎弓根螺钉系统治疗腰椎滑脱，效果良好，复位满意。     

经后路椎间植骨融合椎弓根钉内固定治疗腰椎滑脱

目的探讨后路减压椎间植骨融合椎弓根钉内固定治疗腰椎滑脱的疗效及适应证。方法回顾分析32例腰椎滑脱患者行后路椎管减压、植骨融合椎弓根钉复位内固定治疗的疗效,观察复位、融合、客观疗效评价及并发症等。结果随访时间3~27个月,X片示全部患者滑脱椎体复位植骨融合良好。结论后路椎管减压植骨融合椎弓根钉复位内固定治疗腰椎滑脱可取得良好复位和固定,植骨融合良好,有利于恢复腰椎的正常解剖结构,减少并发症发生,能取得满意临床疗效。     

椎弓根螺钉固定及椎间加横突间植骨融合治疗退变性腰椎管狭窄症并腰椎滑脱52例

目的探讨通过后路腰椎管减压、椎弓根钉棒系统复位固定、椎间加横突间植骨融合的方法,治疗退变性腰椎管狭窄症并腰椎滑脱的临床疗效。方法对52例退变性腰椎管狭窄症并腰椎滑脱患者进行腰椎管减压,椎弓根钉棒系统复位内固定、椎间加横突间植骨融合进行治疗。结果46例随访10～34个月,优37例,良6例,可2例,差1例,优良率达93.2%。结论腰椎管彻底减压、椎弓根钉棒系统早期牢固固定和植骨部位骨性融合是保证疗效的关键。椎弓根钉棒系统固定及椎间加横突间植骨融合是治疗退变性腰椎管狭窄症并腰椎滑脱的一种理想的治疗方法。     

椎弓根螺钉系统内固定及椎间植骨融合术治疗腰椎滑脱症

目的 观察腰推滑脱症行椎弓根螺钉系统内固定及椎间植骨融合术的疗效.方法 本组采用椎弓根螺钉系统将滑脱椎体提拉复位、椎板减压、椎间植骨融合治疗腰椎滑脱症37例.从滑脱复位结果、融合的成功率,临床疗效以及并发症等方面进行评价.结果 术后随访5～41个月.按侯树勋等的评价标准,优良率94.6%,8例I度滑脱椎体患者和28例Ⅱ度椎体滑脱患者术后全部解剖复位,且全部融合.无滑脱复发.结论 使用椎弓根螺钉内固定系统及椎间植骨融合治疗腰椎滑脱复位率,融合率高,临床疗效满意.是治疗腰椎滑脱症比较理想的手术方式之一.     

退变性腰椎管狭窄症伴Ⅰ度滑脱的手术治疗

目的观察退变性腰椎管狭窄症伴Ⅰ度滑脱经椎弓根钉系统及腰椎管减压融合内固定术的治疗效果。方法回顾分析退变性腰椎管单平面狭窄症伴Ⅰ度滑脱病例56例，患者平均年龄63．4岁，平均病程51个月。病变节段：L4-5，40例，L5-S1 16例。手术方式采用全椎板减压加植骨融合及椎弓根钉内固定，术后功能采用北美脊柱外科协会的腰椎功能障碍指数（Oswestry Disability Index）评定。结果本组35例获得随访，随访时间8个月～4年，平均随访27个月。术后改善率为优26例、良5例、可3例、差1例，优良率为88．6％。随访过程中3个月内植骨融合者29例（包括5例椎间植骨融合者），6个月内植骨融合4例，出现假关节2例，其中1例发生内固定断裂。结论对退变性腰椎管狭窄症伴Ⅰ度滑脱，采用椎管减压植骨融合内固定术，短期内可保证脊柱融合，达到稳定脊柱、解除症状的目的。     

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.