肾动脉狭窄支架植入术的临床疗效观察

目的探讨肾动脉狭窄支架植入术的临床疗效.方法1997年1月～2004年12月,我院行支架介入治疗肾动脉狭窄27例.对27例术前、术后及随访期内血压、肾功能以及生活质量进行评估,并与同期单纯药物治疗肾动脉狭窄27例进行比较.结果介入组27例植入支架40枚,手术成功24例(88.9%,24/27),失败3例(11.1%,3/27),手术并发症5例(18.5%,5/27).术后在血压下降(包括收缩压舒张压)肌酐下降,肾小球滤过率增加方面,介入组获益率明显优于药物组,两组比较差异均有显著性,术后随访6个月～8年6个月,中位数为1年9个月,介入组有19例能比较健康的生活和工作,药物组仅12例能维持生活和工作.结论支架介入治疗较单纯药物治疗肾动脉狭窄疗效显著.     

Association analysis of genes in the renin‐angiotensin system with subclinical cardiovascular disease in families with Type 2 diabetes mellitus: The Diabetes Heart Study

Aims Cardiovascular disease (CVD) is a major complication of Type 2 diabetes mellitus. The renin‐angiotensin system (RAS) and nitric oxide production are both important regulators of vascular function and blood pressure. Genes encoding proteins involved in these pathways are candidates for a contribution to CVD in diabetic patients. We have investigated variants of the angiotensinogen (AGT), angiotensin converting enzyme (ACE), angiotensin type 1 receptor (AT1R) and endothelial nitric oxide synthase (NOS3) genes for association with subclinical measures of CVD in families with Type 2 diabetes mellitus (T2DM). Methods Atherosclerosis was measured by carotid intima‐media thickness and calcification of the carotid and coronary arteries in 620 European Americans and 117 African Americans in the Diabetes Heart Study. Because of the role of these systems in blood pressure regulation, blood pressure was also investigated. Results Compelling evidence of association was not detected with any of the SNPs with any outcome measures after adjustments for covariates despite sufficient power to detect relatively small differences in traits for specific genotype combinations. Conclusions Genetic variation of the RAS and NOS3 genes do not appear to strongly influence subclinical cardiovascular disease or blood pressure in this diabetic population.     

Leiomyosarcoma of the renal vein: Arterial encasement on contrast-enhanced dynamic computed tomography

We report a case of leiomyosarcoma of the renal vein, which is a rare tumor with no more than 30 cases found in the published English language literature. This case demonstrates encasement of the renal artery by the tumor mass, a previously unreported manifestation. The present study could be useful in considering this rare tumor in the differential diagnosis of renal hilar tumors.     

外伤性股动脉栓塞继发肾功能衰竭32例的综合治疗

目的 探讨外伤性股动脉栓塞后继发急性肾功能衰竭的临床综合治疗。方法 对32例外伤性股动脉栓塞术后继发急性肾功能衰竭病例均进行急诊手术切开取栓、血管吻合术，术后均予以综合治疗。结果住院时间7天-3个月，平均41d。最终截肢6例，死亡2例，24例修复成功。结论 术前准确判断预后，正确选择手术方式、术中筋膜减张性切开、术后及时清除坏死组织、术后利尿合剂应用和及时必要的血透是影响外伤性股动脉栓塞保肢术后急性肾功能衰竭预后的重要因素。     

64层螺旋CT诊断先天性冠状动脉起源异常的价值

目的：探讨64层螺旋CT冠状动脉造影诊断冠状动脉起源异常的临床价值。材料和方法：回顾性总结2005年12月至2006年12月间1800例64层螺旋CT冠脉造影的结果，统计冠状动脉起源异常的发生率。结果：1800例检查者中发现冠脉起源异常51例，发病率2．8％。包括右冠状动脉变异11例（21．6％）、左冠状动脉变异8例（15．7％）、左右冠均发生变异1例（2％）、单支冠状动脉1例（2％）、分支变异28例（54．9％）。结论：64层螺旋CT是诊断冠状动脉起源异常的安全有效方法，对临床治疗有重要的意义。     

Does multi-vessel off-pump coronary artery bypass grafting reduce post operative morbidity compared to on-pump CABG?

Background Cardiopulmonary bypass (CPB) may contribute to the complications and it is assumed that eliminating cardiopulmonary bypass has the potential of reducing post operative morbidity after coronary artery bypass grafting (CABG). The study was carried out to compare mortality and morbidity in the off-pump and on-pump CABG groups. Methods We prospectively analysed 200 patients undergoing CABG. Group A consists of 100 patients underwent multi-vessel off-pump CABG and group B consists of 100 patients underwent CABG with CPB. The incidence of complications (mortality, re-exploration for bleeding, myocardial infarction, atrial fibrillation, neurological events, new onset renal failure (s. creatinine>1.6 mg/dL) pulmonary complications, length of ICU stay and hospital stay were recorded, analysed and compared. Results OPCAB patients received 2.73±0.61 grafts/patient and on-pump CABG patients received 3.39±0.75 grafts/patient (p value<0.00001). There was no significant statistical difference in mortality, incidence of stroke between OPCAB and CABG with CPB patients. Length of ICU stay was 32.84±4.22 vs 44.85±7.18 hrs (p value<0.00001) and hospital stay was 6.52±0.69 vs 7.94±0.92 days (p value<0.00001) between group A and group B respectively. Incidence of atrial fibrillation was less in OPCAB group 7% vs 12% although it was statistically not significant (p value 0.33). It was observed in our study that there was no significant deference in worsening of existing renal failure between on-pump CABG and OPCAB 6% vs 2% (P value 0.28). Blood utilization was significantly less in OPCAB group (p value<0.001). Conclusion There was no statistically significant difference in terms of mortality, incidence of stroke and new onset renal failure in both groups. But there was lesser incidence of post operative atrial fibrillation, worsening of existing renal failure in off-pump group though statistically not significant. There was significant reduction in blood utilization, length of ICU and hospital stay in OPCAB group.     

头皮针对脑缺血模型大鼠血浆内皮素-1的影响

目的 :研究头皮针对脑缺血模型大鼠内皮素 - 1 ( ET- 1 )的影响 ,并与电针组比较。方法 :Wistar大鼠 5 0只 ,随机分正常、假手术、模型、电针、头皮针五组 ,每组 1 0只 ,后四组均于造模后 72小时、1 0天、1 5天取血测 ET- 1 ,并与手术后 6小时测定值进行比较 ;前三组不治疗 ,后两组造模后分别用电针与头皮针治疗。观察治疗前后 ET- 1测定值。结果 :神经功能评分 ,术后 1 0天与 1 5天 ,治疗组与模型组有显著性差异 ( P<0 .0 5～ 0 .0 1 ) ,电针组与头皮针组 ET- 1测定值无明显差异。对ET- 1的影响 ,术后 72小时及 1 0天时 ,治疗组 ET- 1明显低于模型组 ( P<0 .0 5 ) ,头皮针组明显低于电针组 ( P<0 .0 5 )。结论 :头皮针可在脑缺血早期就明显降低血浆 ET- 1含量 ,这可能是头皮针减轻脑缺血损伤并促进肢体功能恢复的机制之一。     

Recognition of potential morbidity after use of the radial artery as a conduit for coronary artery revascularization

The use of the radial artery as an alternative vascular conduit for coronary bypass surgery has become increasingly popular. The plastic surgery experience with radial forearm flaps has shown that sacrifice of the radial artery is not always a benign maneuver. The potential morbidity after using this conduit donor site in terms of hand dysfunction or wound healing problems can be significant, and frequently must ultimately be addressed as part of the role of the reconstructive surgeon. Case examples of skin necrosis, subsequent forearm wound infection and hypertrophic scarring after radial artery harvest are presented to introduce this as a real concern and to allow a review of the entire spectrum of potential problems in this regard. Any selection process where the radial artery may be chosen as the coronary revascularization conduit must anticipate these known donor site complications.     

脑创伤致迟发性脑梗死临床分析

目的探讨脑创伤后迟发脑梗死的发生机制,临床诊断及救治措施。方法对32例经影像学证实为颅脑创伤后迟发脑梗死患者的临床资料进行回顾分析。结果出院时按GOS标准评价:恢复良好12例、中残5例、重残4例、植物生存3例,死亡8例,其中非手术治疗20例,存活14例,死亡6例,死亡率30%;手术治疗12例,存活10例,死亡2例,死亡率17%。结论及时诊断与合理有效的治疗是提高脑创伤后迟发性脑梗死的治愈率及提高患者生存质量的关键。