准分子激光原位角膜磨镶术治疗近视并发症

目的　分析准分子激光原位角膜磨镶术 (LASIK)治疗近视的并发症 ,探讨其发生的原因、预防和处理措施。方法　 72 3例 ( 1390只眼 )近视患者 ( - 1 5 0～ - 2 2 0 0D)行LASIK术后随访 12个月 ,观察其术中、术后并发症。结果　术中角膜瓣形成不全 5只眼 ( 0 36 % ) ,角膜瓣过薄 4只眼( 0 2 9% ) ,角膜瓣游离 6只眼 ( 0 4 3% ) ,角膜瓣层间异物残留 12只眼 ( 0 86 % ) ,屈光回退 >1 0D者 2 0只眼 ( 1 4 4 % ) ,激素性高眼压 16只眼 ( 1 15 % ) ,眩光和夜驶困难 2 4只眼( 1 73% )。结论　LASIK治疗近视安全、有效 ,但仍存在一定的并发症 ,必须引起重视 ,提高手术技巧和完善手术设计有助于进一步减少手术并发症的发生和提高手术的预测性和准确性     

准分子激光原位角膜磨镶术治疗超高度近视的疗效分析

目的 :探讨准分子激光原位角膜磨镶术 (LASIK)矫治超高度近视 (- 10D以上近视 )的准确性和预测性。方法 :通过对 5 6例 (共 10 5眼 )术前屈光度 (等值球镜 ) - 10 0 0～ 2 6 0 0DS ,平均 13 4± 3 9DS近视患者采用LASIK治疗 ,随访一年。结果 :术后 1个月时裸眼视力达到术前矫正视力的为 81眼 ,占总眼数的 77 1% ;术后 6个月裸眼视力高于或等于术前的为 96只眼 ,占总眼数的 91 4 % ;其中高于术前的为 2 6眼 ,占总眼数的 2 4 8% ;而裸眼视力下降 1行以上的 6眼 ,占 5 8% ;其中 3例为不规则散光 ,2例角膜瓣制作不全 ,1例为角膜瓣层间脂类物残留 ,裸眼视力下降 2行以上的为 3眼 ,占总眼数的 2 9%。结论 :LASIK手术治疗高度近视具有较好的安全性及预测性 ,但手术操作及手术适应症的选择仍需谨慎从之。     

LASIK治疗近视的并发症临床分析

目的分析准分子激光角膜原位磨镶术(LASIK)治疗近视的并发症及处理.探讨其发生原因及预防措施.方法 2 035例(3 984只眼)近视患者(-1.50～-27.00D),术后随访1、7d 1、3、6、12、24个月,观察及分析其并发症.结果术中角膜瓣游离2只眼(0.05%);角膜瓣小、游离并偏位1只眼(0.025%);角膜瓣形成不全5只眼(0.12%);角膜层间异物16只眼(0.40%);明显偏中心1只眼(0.025%).术后角膜瓣融解1只眼(0.025%);角膜瓣移位、皱折10只眼(0.25%);角膜瓣下感染16只眼(0.40%);角膜瓣下上皮植入4只眼(0.10%);屈光过矫3只眼(0.075%);屈光欠矫26只眼(0.65%);眼底病变4只眼(0.10%). 结论 LASIK治疗近视安全、有效,但存在一定的并发症,应引起重枧,手术技巧的提高、手术设计的完善和手术设备的改进以及有效及时处理各种并发症是保证手术成功的关键.     

准分子激光上皮瓣下角膜磨镶术和准分子激光原位角膜磨镶术治疗近视疗效观察

目的评价准分子激光上皮瓣下角膜磨镶术（LASEK）和准分子激光原位角膜磨镶术（LASIK）对近视散光的治疗效果。方法采用美国VISXSTARs4型准分子激光系统对296例（538只眼）近视散光患者进行治疗,其中LASEK组近视度数在-1．0D～-10．0D,共119只眼;LASIK组近视度数在-1．0D～-16．0D,共419只眼;二组患者散光度数均在-0．5D～-5．0D。结果术后视力：二组患者均随访1年以上,LASEK组视力均≥0．5,其中92．18％的患者≥0．8;LASIK组视力均≥0．5,其中91．87％的患者≥0．8。结论LASEK和LASIK治疗近视散光安奎有效。     

小光斑飞点扫描式准分子激光LASIK治疗近视眼的疗效

目的　探讨小光斑飞点扫描式准分子激光LASIK治疗近视的临床效果。方法　将 892例 (172 4只眼 )按屈光度分为A组 (<- 6 0 0D) 5 4 8例 (10 5 3只眼 ) ,B组 (- 6 2 5～ - 10 0 0D) 2 85例 (5 6 2只眼 ) ,C组(>- 10 2 5D) 5 9例 (10 9只眼 ) 3组 ,采用德国SCHWIND小光斑飞点扫描式准分子激光仪进行LASIK治疗。随访 3～ 12个月 ,观察术后视力、屈光度和并发症等情况。结果　A ,B ,C 3组的术后裸眼视力≥ 1 0者 ,术后 1天分别为89 6 % (94 3/ 10 5 3) ,78 3% (4 4 0 / 5 6 2 )和 37 6 % (4 1/ 10 9) ;术后 3个月时分别为 95 4 % (10 0 5 / 10 5 3) ,88 1%(4 95 / 5 6 2 )和 4 8 6 % (5 3/ 10 9)。A组视力恢复最好 (P <0 0 1)。术后屈光度在± 1 0 0D以内者 ,术后 1天时分别为91 2 % (96 0 / 10 5 3) ,90 0 % (5 0 6 / 5 6 2 ) ,86 2 % (94 / 10 9) ;3个月为 92 5 % (974 / 10 5 3) ,91 3% (5 13/ 5 6 2 ) ,89 0 %(97/ 10 9)。 3组的屈光度恢复情况相当 (P >0 0 5 )。主要的并发症有 :偏中心切削 3只眼 (均出现在C组 ) ,角膜瓣形成不全 3只眼 ,瓣位置偏离 5只眼 ,角膜上皮植入 5只眼 ,眩光 15只眼。结论　小光斑飞点扫描式准分子激光机型在LASIK手术中起着重要的作用 ,而良好的角膜板层刀和丰富的     

小光斑飞点扫描准分子激光治疗近视的疗效观察

目的 :了解小光斑飞点扫描准分子激光联合红外线制导眼球主动跟踪系统行近视 L ASIK治疗的效果及安全性。方法 :使用 WAVEL IGHT公司 AL L EGRETTO鹰视准分子激光系统及法国 MORIA- 2角膜板层刀对 16 30例 (3174眼 )近视患者行L ASIK治疗。结果 :术前屈光度 - 0 .75～ - 9.0 0 DS[(- 4 .0 9± 1.35 ) DS]2 96 2眼 ,术后 6个月裸眼视力 (UCVA) 98.8%达 0 .8以上 ,92 .4 %达 1.0以上 ,术前屈光度 - 9.2 5～ - 19.75 DS[(- 9.4 5± 3.6 6 ) DS]共 2 12眼 ,术后 6个月裸眼视力 75 .9%达 0 .8以上 ,5 2 .8%达 1.0以上。实际矫正度在预期矫正度± 0 .5 D范围内占 90 .7% ,± 1.0 0 D范围内占 97.4 %。术后出现屈光回退 33眼 (1.0 4 % )。主要并发症 :术中角膜上皮部分松脱 7眼 ,术后角膜瓣翻转移位 1眼 ,术后角膜上皮植入 5眼。未发现偏心切削、中央岛及不规则散光现象。结论 :小光斑飞点扫描准分子激光系统联合红外线制导眼球自动跟踪治疗近视安全、可靠 ,精确度高 ,可预测性强 ,值得推广应用。     

准分子激光治疗近视散光的疗效观察

目的 :评价准分子激光角膜切削术 (PRK)及准分子激光原位角膜磨镶术 (LASIK)对近视散光的治疗效果。方法 :采用美国SCAN - 195型准分子激光系统对 74例 (138只眼 )近视散光的患者进行治疗 ,PRK组近视度数在 - 1 0 0～ - 5 0 0D ,散光度数在 - 0 5 0～ - 3 0 0D之间的患者 ,共 6 1只眼 ;LASIK组为近视度数大于 - 5 0 0D伴散光者或散光度数大于 - 3 0 0D的患者 ,共 77只眼。结果 :术后视力 :所有病例均随访 1a以上 ,PRK组视力均≥ 0 5 ,其中 91 98%的患者≥ 0 8;LASIK组视力均≥0 5 ,其中 90 12 %的患者≥ 0 8。结论 :PRK和LASIK治疗近视散光是安全、有效并且可行     

Q值引导的SBK与薄瓣LASIK治疗近视及散光的疗效比较

目的 探讨前弹力层下切削(SBK)与薄瓣准分子激光原位角膜磨镶术(LASIK)治疗近视及散光的安全性、预测性和有效性. 方法 收集接受SBK手术46例(91眼)为SBK组,球镜(-5.16 ± 1.37)D(-1.5~ -9 D),柱镜(-0.72 ± 0.45)D(0~ -2.5 D);接受薄瓣LASIK手术46例(92眼)为薄瓣LASIK组,球镜(-5.60 ± 1.59)D (-1.5~ -10 D),柱镜(-1.38 ± 0.68)D(0~ -4.5 D).采用OU P-ONE角膜板层刀和M2110刀头,比较2组角膜瓣厚度、术后裸眼视力、屈光度及并发症. 结果 2组患者左眼角膜瓣厚度均明显小于右眼;薄瓣组患者的左、右眼和双眼角膜瓣厚度均明显大于SBK组(P<0.01),且变异较大.SBK组、薄瓣组术后3月内裸眼视力均明显优于术前裸眼视力,2组术后不同时期祼眼视力达到或超过术前最佳矫正视力的比例均无显著差异.SBK组、薄瓣组术后干眼症状发生率分别为21.7% 及23.9%. 结论 SBK及薄瓣LASIK矫正近视及散光安全有效,Q值引导下依据患者角膜形态、厚度及散光方向个性化选择术式可以提高手术的预测性.     

小光斑飞点扫描准分子激光治疗近视的临床观察

目的:评价小光斑飞点扫描准分子激光系统用于LASIK手术治疗近视的疗效。方法:采用鹰视ALLEGRTTOWAVEFRONT准分子激光扫描仪及法国MORIACB角膜切削刀为2 0 2例、396眼行准分子激光治疗。屈光度为- 0 .75D～- 14 .5 0D。随访术后超过3个月的患者。观察分析视力及屈光度的变化。结果:术后第1天裸眼视力在0 .5、0 .8、1.0以上者分别为98.9% (392眼)、90 .4 % (35 8眼)、75 % (2 97眼)。术后第1、3月裸眼视力>1.0的分别为88.1% (349眼)、91.9% (36 4眼)。无严重术后并发症发生。结论:小光斑飞点扫描准分子激光系统行LASIK手术治疗近视的临床效果较好,大大减少了手术并发症的发生率     

准分子激光原位角膜磨镶术后屈光的动态研究

目的　探讨准分子激光原位角膜磨镶术 (laserinsitiukeratomileusis ,LASIK)后屈光度数回退的原因。方法　将 2 0 1例 (386眼 )近视患者 (- 1 .2 5～ - 2 0 .0 0D)按屈光度数分为A组 2 1 8眼 (- 1 .2 5～ - 6 .0 0D)和B组 1 6 8眼 (- 6 .2 5～ - 2 0 .0 0D)行LASIK ,记录术前、术后视力、屈光度数、角膜厚度和角膜激光切削区直径 ,并进行统计学分析。结果　(1 )A组 :正常术眼 :术后屈光度数 <- 1 .0 0D 1 95眼 (89.4 5 % ) ,术前平均角膜厚度 (5 4 9.5± 31 .5 ) μm ,术中平均激光切削直径为 (4 .96± 0 .35 )mm ;回退术眼 :术后屈光度数≥ - 1 .0 0D 2 3眼 (1 0 .5 5 % ) ,术前平均角膜厚度 (5 4 7.5± 37.0 ) μm ,与正常术眼比较差异无显著意义 (P >0 .0 1 ) ;(2 )B组 :正常术眼 1 0 5眼 (6 2 .5 % ) ,术前平均角膜厚度为 (5 6 0 .9± 30 .9) μm ,术中平均激光切削直径为 (4 .5 1± 0 .2 8)mm ,术后回退术眼 77眼 (4 5 .83% ) ,术前平均角膜厚度为 (5 38.0± 31 .0 ) μm ,与A组比较差异有非常显著意义 (P <0 .0 1 ) ;术后平均屈光度数为 - 1 .99± 1 .0 1D。结论　LASIK可有效治疗 - 6 .0 0～ -1 5 .0 0D的近视。术中激光切削直径小者和高度近视术前角膜厚度薄者术后易出现屈光度数回退     

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.     

Development on Adjustable Calibration Marker for Shock Wave Focus

Shock wave lithotripsy （SWL） is a treatment of choice for upper urinary stones. However, this procedure is inappropriate for obese patients because the focus is often unable to reach the target owing to the limited focal distance in shock wave source. Although treating such patients in a blast path may increase the application length of shock wave source, it＇s difficult to find this path on the lithotripter monitor. For this reason, we invented an adjustable calibration marker in order to set an effective focus in the shock wave hath.     

Study on the TCM Pathogenesis of Angiopathic Complications of Type II Diabetes

Excess production of reactive oxygen species(ROS)of mitochondrion mediated by hyperglycemia is the common pathogenesis of angiopathic complications of diabetes.TCM holds that the damp from the dysfunction of spleen.kidney and liver is the causative factor of complications of diabetes.This is similar to the mechanism of Ros resulting in angiopathic complications of diabetes.When the angiopathic complications of type II diabetes mellitus(T2DM)are difierentiated as caused by turbid damp in TCM can be explained as ROS.Since the obstruction of pathogenic damp in channels and collaterals is said to be the main pathogenesis,the treating principle should be dissolving the damp to remove the obstruction.     

Leptin, Ghrelin and TNF-α before and after Hypo-caloric Traditional Chinese Diet and Auricular Acupuncture

INTRODUCTION Obesity is a complex emergent problem, which can be possibly solved not only by the diet but also by the life style and promotion of a constant physical exercise. 1, 2 No doubt careful attentions must be given to the nutritional condition of obese people, the dietary habits, the somatic build (i.e. distribution of fat mass) and the organic functions linked to formation of the fat mass. All the parameters should be constantly monitored before, during and after a diet treatment. 3, 4, 5     

Relationship between Dysglycemia and Carotid Atherosclerosis in Tibetan Population

People with dysglycemia are at high risk for atherosclerotic diseases. This study aims at investigating the atherosclerotic vascular damage in dysglycemia and its metabolic origin in Tibetan population.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

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.     

CLINICAL SIGNIFICANCE OF SERUM CYTOKINES IL-1β,sIL-2R,IL-6,TNF-α,AND IFN-v IN ACUTE CORONARY SYNDROME

Objectives To explore serum cytokines levels (including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v) and their significance in patients with acute coronary syndrome (ACS) and the subsequent follow-ups, with attempt to estimate the role of various serum inflammatory markers in the diagnosis and assessment of ACS.Methods The study population include 40 patients with acute myocardial infarction (AMI), 40 patients with unstable angina pectoris (UAP), and 40 controls. Among the 80 patients, 60 patients attended a follow up 4 months later. Serum inflammatory markers including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v were measured by enzyme linked immunosorbent assay.Results Serum IL- 1 β, sIL-2R, IL-6, TNF-α were significantly higher in AMI group or UAP group compared to the control group and became significantly lower 4 months later in the follow-up patients. Serum levels of IFN-v shows no significant difference between AMI group or UAP group and controls, also showing no significant change when measured in follow up patients. There was no correlation between serum creatine kinase-MB isoenzyme levels and serum inflammatory markers either in UAP or AMI group. Furthermore, when divided into two subgroups using Wagner's QRS scoring system in the AMI group, there is no difference of each serum inflammatory marker between ≤ 6 scores group and ＞ 6 scores group.Conclusion Serum levels of certain inflammatory markers may have some diagnostic value for ACS, and can be a useful marker reflecting disease stability.