The nuclear stethoscope: A simple device for generation of left ventricular volume curves

Initial evaluation has begun of a system for displaying left ventricular time-activity curves, relating the intraventricular content of radioactivity with the cardiac cycle as determined by the patient's electrocardiogram. Major problems include proper positioning of the detector, correction for background radioactivity outside the ventricle and calibration of the device to permit conversion of measurement of radioactivity to measurement of ventricular volumes.     

基于Wagner分级的认知行为干预对糖尿病患者足部状况与自我效能的影响

目的探讨基于Wagner分级的认知行为干预对糖尿病患者足部状况及自我效能的影响。方法选取我院2018年1—12月收治的糖尿病患者50例,将其随机等分为对照组与观察组,对照组采用常规护理,观察组采用基于Wagner分级的认知行为干预,比较两组患者足部状况TCSS评分及自我效能水平。结果观察组神经症状、神经反射、感觉试验评分及总分均显著低于对照组(P<0.05),自我效能GSES评分显著高于对照组(P<0.05)。结论基于Wagner分级的认知行为干预在糖尿病患者中的应用,能改善其足部状况,提高其自我效能,值得临床推广应用。     

我国13种按蚊的系统发育数值分析

对我国13种按蚊的13个特征进行系统发育数值分析,画出魏格纳树状图和聚类分析树状图作比较,前者优于后者。从魏格纳树状图中可清楚显示2个亚属群;我国不同地域的大劣按蚊和多斑按蚊存在差异和复合种问题;按蚊属的发源地与扩散和蚊科的区系演变规律相一致。     

Comparing the Meggitt‐Wagner and the University of Texas wound classification systems for diabetic foot ulcers: inter‐observer analyses

Accurate classification of diabetic foot ulcers is essential for inter‐clinician communication, assessment of healing tendency and determination of treatment options. The aim of this study was to assess the inter‐observer agreement (IOA) of the most commonly used classification systems for diabetic foot ulcers; the Meggitt‐Wagner (MW) and the University of Texas (UT) systems. In this study, 95 clinicians judged digital photographs of diabetic foot ulcers in various stages of healing. Wound depth was classified along the grades of the MW and the UT systems. IOA of the MW and UT systems was only moderate among the clinicians. This moderate agreement demonstrates that the MW and the UT systems appear not to be useful as single instrument and should always be used in combination with additional clinical information to avoid erroneous interpretations.     

Ventral-striatal/nucleus-accumbens sensitivity to prediction errors during classification learning

A prominent theory in neuroscience suggests reward learning is driven by the discrepancy between a subject's expectation of an outcome and the actual outcome itself. Furthermore, it is postulated that midbrain dopamine neurons relay this mismatch to target regions including the ventral striatum. Using functional MRI (fMRI), we tested striatal responses to prediction errors for probabilistic classification learning with purely cognitive feedback. We used a version of the Rescorla-Wagner model to generate prediction errors for each subject and then entered these in a parametric analysis of fMRI activity. Activation in ventral striatum/nucleus-accumbens (Nacc) increased parametrically with prediction error for negative feedback. This result extends recent neuroimaging findings in reward learning by showing that learning with cognitive feedback also depends on the same circuitry and dopaminergic signaling mechanisms.     

MEBT/MEBO与重组牛碱性成纤维细胞生长因子治疗糖尿病足的疗效对比分析

目的 对比分析皮肤再生医疗技术(MEBT/MEBO)与重组牛碱性成纤维细胞生长因子治疗糖尿病足的临床疗效.方法 选取2018年2月至2019年12月右江民族医学院附属医院烧伤整形与创面修复外科收治的60例Wagner 2～4级糖尿病足患者作为研究对象,采用随机数表法将其随机分为MEBT/MEBO组和贝复新组,每组30例...     

糖尿病足89例临床资料分析

目的研究糖尿病足患者的诱因、治疗方法、治疗周期，提高治疗效果，降低糖尿病足的致残率、死亡率及危害。方法选择糖尿病足患者89例，采集患者的详细临床资料，根据患者的病情给予相关检查及治疗，治疗结束后进行回顾性分析。结果89例患者，因烧烫伤导致者26例，鞋子不适者21例，锐器刺伤者18例，脚气感染不愈合所致者15例，其他9例。治疗时间最短4周，最长16周。痊愈71例，截肢11例，死亡2例，转院5例。结论糖尿病足治疗周期长，费用昂贵，致残率高，严重影响患者的生存质量和寿命，危害严重。应该引起社会的高度重视，并给予积极的预防和治疗。