睾丸性无精子症中医证型间睾丸病理类型、IgG、IgM的比较研究

目的 通过对睾丸性无精子症肾虚证组、血瘀证组患者睾丸病理类型、IgG、IgM、的比较研究，为辨证论治睾丸性无精子症提供理论依据。方法 31例睾丸性无精子症患者的睾丸组织，其中。肾虚证者16例，血瘀证者15例。正常对照组睾丸5例。进行病理检查，睾丸病变程度行Makler评分，利用免疫组织化学ABC法检测睾丸组织中IgG、IgM沉积情况，并对上述结果行统计学处理。结果两组患者的病理类型都以生精阻滞为主，但血瘀证组患者的睾丸病变更为严重而复杂。31例患者中22例有IgG沉积，11例有IgM沉积，两组间比较无显著性差异，免疫复合物的沉积与睾丸病变程度无关。结论血瘀证患者睾丸组织病变更为严重。自身免疫在肾虚证、血瘀证患者中普遍存在，但免疫因素在睾丸性无精症的发病机制中不占主导地位，自身免疫与证型无关。     

补骨脂素对良性增生前列腺细胞增殖的影响

目的:观察补骨脂素对良性前列腺增生的抑制效果,探讨其作用机制.方法:将20只SD大鼠随机均分为两组,去势7 d后皮下注射丙酸睾酮5 mg/kg,同时实验组灌胃给予补骨脂素40 mg/kg,对照组给予等量蒸馏水,30 d后处死,称取前列腺湿重、计算前列腺指数,免疫组化法检测增殖细胞核抗原(PCNA)指数,光镜观察前列腺组织病理学改变.结果:实验组大鼠前列腺湿重、前列腺指数和PCNA指数均显著低于对照组(P<0.05).结论:补骨脂素能显著抑制模型大鼠的良性前列腺增生,其机制可能是通过降低前列腺细胞增殖而实现的.     

Early surgical intervention alleviates sensory symptoms following acute traumatic central cord syndrome

Purpose

To investigate the impact of early versus delayed surgery on sensory abnormalities in acute traumatic central cord syndrome (ATCCS).

Methods

Pressure pain threshold (PPT), temporal summation (TS), conditioned pain modulation (CPM) and pain assessments were performed in 72 ATCCS patients (early vs. delayed surgical treatment: 32 vs. 40) and 72 healthy subjects in this ambispective cohort study. These examinations, along with mechanical detection threshold (MDT) and disabilities of arm, shoulder and hand (DASH), were assessed at 2 years postoperatively.

Results

Preoperatively, more delayed surgical patients had neuropathic pain below level compared with early surgical patients (P < 0.05). Both early and delayed surgical patients showed reduced PPT in common painful areas and increased TS, while reduced CPM only existed in the latter (P < 0.05). Reduced PPT in all tested areas, along with abnormalities in TS and CPM, was observed in patients with durations over 3 months. Both incidences and intensities of pain and pain sensitivities in common painful areas were reduced in both treatment groups postoperatively, but only early surgical treatment improved the CPM and TS. Follow-up analysis demonstrated a higher MDT and lower PPT in hand, greater TS, greater DASH, lower pain intensities and higher incidence of dissatisfaction involving sensory symptoms in delayed surgical patients than in early surgical patients (P < 0.05).

Conclusions

Central hypersensitivity may be involved in the persistence of sensory symptoms in ATCCS, and this augmented central processing may commence in the early stage. Early surgical treatment may reverse dysfunction of endogenous pain modulation, thus reducing the risk of central sensitization and alleviating sensory symptoms.

     

甲状腺机能亢进症围手术期的处理

为探讨甲状腺机能亢进症的手术治疗效果，对１０３８例甲状腺机能亢进症病人的围手术期处理情况进行了分析。结果：术后无１例发生甲状腺危象。术后２年以上者９８０例，均获随访（１００％），随访时间为２～１５年，治愈率为９９．１％；复发９例，占０．９％。     

Posterior lumbar interbody fusion versus posterolateral fusion in spondylolisthesis: a prospective controlled study in the Han nationality

In this prospective study, our aim was to compare the clinical outcome of posterior lumbar interbody fusion (PLIF) and posterolateral fusion (PLF) in spondylolisthesis. A total of 138 patients with spondylolisthesis were randomly assigned to two groups: those operated on with pedicle screw fixation and posterior lumbar interbody fusion by autografting (PLIF), and those operated on with pedicle screw fixation and posterolateral fusion by autografting (PLF). The patients were followed-up for four years. Clinical evaluation was carried out using the Oswestry disability index (ODI) and pain index (VAS). Radiography was performed preoperatively and postoperatively to assess the fusion. Both surgical procedures were effective, but the PLF group showed more complications related to hardware biomechanics. There was no significant statistical difference in clinical and functional outcome in the two groups. The PLIF group presented a better fusion rate than the PLF group.     

Clinical and radiographic reports following cervical arthroplasty: a 24-month follow-up

We reviewed patients with cervical disc prosthesis replacement for single-level cervical disc disease to evaluate its clinical effect and maintenance of cervical spine motion. Fifteen patients underwent Bryan artificial cervical disc replacement and were followed-up for at least 24 months. No neurological or vascular complications were observed during or after operation. JOA, VAS, and NDI scores showed statistical significant improvement in our follow-up. The procedure achieved an 87% (13/15) satisfactory rate at 24-month evaluations according to Odom's criteria. The range of motion (ROM) of the cervical spine, treated segment, adjacent segment, and functional spinal unit (FSU) decreased at early follow-up, but they recovered to the preoperative level at 12- and 24-month follow-up. Also, preoperative lordosis of the cervical spine and FSU were not only maintained but also even improved during the 24-month follow-up. No obvious degeneration of adjacent discs were found at MRI. There were no cases of prosthesis subsidence or extrusion. The cervical disc prosthesis showed a good clinical outcome; it also restored ROM of the cervical spine and reestablished cervical curvature in our 24-month follow-up. But to be sure of its long term effect, a longer follow-up is needed.     

重视急性肾损伤的临床研究

急性肾损伤(AKI)发病率和死亡率在世界范围内逐年增加。2012年改善全球肾脏病预后组织(KDIGO)指南明确了新的AKI定义与分期。AKI的新定义给基础研究和常规临床实践带来了巨大的变化,提高了AKI诊断的灵敏度,降低了漏诊率,提高了预测危重患者死亡的能力,临床实用性更强。在此基础上,中国开展了几个大型的、多中心AKI流行病学调查,初步阐明了中国AKI流行病学现状和危险因素。在急性肾损伤的治疗方面,更加强调肾脏的保护与支持,越来越认识到早期干预、液体管理、营养支持以及肾脏替代治疗(RRT)时机的综合管理对AKI预后影响的重要性。     

Fusion versus Bryan Cervical Disc in two-level cervical disc disease: a prospective,randomised study

In this prospective study, our aim was to compare the functional results and radiographic outcomes of fusion and Bryan Cervical Disc replacement in the treatment of two-level cervical disc disease. A total of 65 patients with two-level cervical disc disease were randomly assigned to two groups, those operated on with Bryan Cervical Disc replacement (31) and those operated on with anterior cervical fusion with an iliac crest autograft and plate (34). Clinical evaluation was carried out using the visual analogue scale (VAS), the Short Form 36 (SF-36) and the neck disability index (NDI) during a two year follow-up. Radiological evaluation sought evidence of range of motion, stability and subsidence of the prosthesis. Substantial reduction in NDI scores occurred in both groups, with greater percent improvement in the Bryan group (P = 0.023). The arm pain VAS score improvement was substantial in both groups. Bryan artificial cervical disc replacement seems reliable and safe in the treatment of patients with two-level cervical disc disease.     

头颈部CTA判断大脑中动脉区脑梗死患者供血动脉狭窄的价值

目的探讨头颈部计算机断层扫描血管成像（CTA）在判断大脑中动脉（MCA）区脑梗死患者血管狭窄程度以及与脑梗死程度的相关I生。方法对68例MCA区脑梗死患者进行头颈部CTA检查,分析受累血管狭窄程度及其与脑梗死程度的关系。结果68例中,颈内动脉（ICA）和MCA均正常者5例,单纯ICA狭窄共16例,其中轻度狭窄2例,中度狭窄4例,重度狭窄5例,闭塞5例;单纯MCA狭窄共41例,其中轻度狭窄6例,中度狭窄12例,重度狭窄18例,MCA闭塞5例;MCA合并ICA狭窄6例。ICA或MCA狭窄程度与脑梗死类型有关,狭窄程度越严重,梗死程度越严重（r=0.832,0．938,P〈0．05）。结论头颈部CTA在判断血管狭窄的同时,可预测患者脑梗死的程度,对脑梗死的临床诊断和治疗方案的选择具有重要的指导价值。     

大骨节病儿童手部X线征与年龄的关系

本文分析了2800例4～13岁大骨节病儿童掌指骨X线病变与年龄的关系,结果表明手部掌指骨干骺端X线征随年龄增加而趋于下降,骨端、骨骺、腕骨X线征的类型与检出率则随年龄而呈上升趋势,反映出大骨节病关节病变的范围有随年龄增长而扩大和增重的趋势。