有训练者和无训练者的心功能和无氧阈的关系

本文观察了10名游泳运动员和10名实验室工作人员在递增负荷运动中心功能的变化及其与无氧阈的关系.结果为:(1)游泳队员的无氧阈值明显高于无训练的实验室工作人员;(2)运动中每搏量稳定时的强度与无氧阈强度是密切相关的;(3)运动至无氧阈强度以后,心输出量的增加主要靠心率的增加来维持;(4)无训练者在运动一开始就动用心力储备,增加心率和每搏量,而游泳队员则在运动至40W以后才开始增加心率和每搏量.这些结果表明,无氧阈与心功能具有很密切的关系,可用它来反映心功能的好坏.     

Dual origin of the left circumflex coronary artery: A case report

We describe a patient with two separate vessels having different origins supplying the circumflex coronary artery distribution. This represents a previously undescribed coronary artery anomaly.     

Model Features of a Cardiac lontophoretic Drug Delivery Implant

Pharmaceutical Research -     

潘南金在急性心肌梗死治疗中的作用

目的探讨潘南金在急性心肌梗死(AMI)治疗中改善恶性心律失常及心功能的作用。方法将患者随机分为潘南金组及对照组各40例,在AMI常规治疗基础上,潘南金组予潘南金注射液40mL加入5%葡萄糖注射液500mL中静脉点滴,1次/d;同时加服片剂2片/次,3次/d。对照组则予极化液静点,1次/d。2组均在CCU监护1周后转入普通病房,共治疗3～4周。结果恶性心律失常发生率潘南金组为25%,对照组为65%,2组比较P<0.01。出院时心功能NYHA分级改善2级以上者,潘南金组为58%,对照组为45%,2组比较P<0.05。结论对AMI患者尽早应用潘南金治疗,可明显降低恶性心律失常发生率和改善心功能,且不良反应少,可列为常规用药。     

adaptive fourier threshold filtering: A method to reduce noise and incoherent artifacts in high resolution cardiac images

We introduce an image processing method which reduces white noise and random artifacts in sets of high resolution, time resolved images. At each pixel, the processing consists of: (1) the isolation of a time intensity curve (TIC), (2) Fourier transformation of each TIC, (3) application of a threshold to remove low intensity coefficients, (4) inverse transformation to generate noise reduced TICS which are recombined to form images with improved signal-to-noise ratio (SNR). Noise filtering by Fourier thresholding is demonstrated on a set of cardiac images, resulting in a reduction of the noise energy by approximately 90%.     

黄芪注射液治疗充血性心力衰竭的临床观察

目的 :观察黄芪注射液对充血性心力衰竭 (CHF)的治疗效果。方法 :将 12 7例心衰病人随机分为 2组。对照组 5 5例 ,给予传统治疗心衰药物洋地黄、利尿剂及休息、低盐饮食、吸氧等治疗 ;治疗组 72例 ,在对照组病人用药的基础上加黄芪注射液 40ml ,静脉滴注 ,每日 1次 ,2组均连续用药 15天。结果 :总有效率治疗组 91 7%,对照组 6 7 3%,治疗组效果明显优于对照组 (P <0 0 1) ,且 2组自身对照 ,治疗后好转程度 ,治疗组优于对照组 ,左室射血分数 (LVEF)明显好于对照组。结论 :在常规治疗CHF的同时加用黄芪注射液可显著提高疗效。     

眼科手术表面与球后麻醉比较的临床研究

目的：评价表面麻醉(表麻)下行内眼手术的安全性及可行性。方法：随机抽取表麻下内眼手术300眼与球后麻醉下内眼手术288眼，对两组术中、术后并发症进行对比。结果：表麻下与球后麻醉下内眼手术效果，术中、术后并发症的发生率无显著性差异，但表麻可以最大限度减少因麻醉带来的术中、术后并发症，使内眼手术更加安全快捷。结论：表麻下行内眼手术是可行的、安全的。     

Transplantation and the problems afterward including coronary vasculopathy

The clinical success of cardiac transplantation requires clinical cardiologists to become familiar with care of the post-transplant patient. This review emphasizes five major post-transplant problems: (1) infection/immunosuppression, (2) metabolic problems, (3) post-transplant hypertension, (4) exercise intolerance, and (5) graft coronary disease. The evolution of these problems after transplantation is emphasized, so that clinical cardiologists and internists sharing the management of these patients can develop a context in which to work.     

胃上部癌的经腹外科治疗

目的 提高胃上部癌外科治疗水平。方法 对94例胃上部癌采用了经腹正中切口或合并切除剑突及左第7～9肋弓软骨入路，行近端胃或全胃切除术。结果 全组病例发生吻合口瘘1例，食管断端癌残留3例和肺部感染8例，无肋软骨炎及胸膜损伤所致血气胸发生。结论 胃上部癌经腹入路暴露良好，创伤小，痛苦少，适用于食管无浸润或浸润小于1cm的胃上部癌的患者。