Prime number variant of concealed trigeminy

A 53-year-old man with myocardial infarction was found to have frequent premature ventricular beats. The predominant pattern was classical concealed trigeminy; i.e., the number of conducted sinus beats, S, between extrasystoles satisfied the equation S = 3n + 2, where "n" is zero or any positive integer. Two other transient patterns also occurred. The first one was characterized by exceptional values of S, which satisfied the equation S = 3n + 3. In the second transient pattern, all values of S fitted the classical equation, but there were singularly absent values; i.e., the "n" in the equation was exclusively an odd number, giving rise to only prime numbers of interectopic conducted sinus beats. It is proposed in this last form that there are two sites of fixed block proximal to a variable distal block in a re-entry loop responsible for the ventricular extrasystoles.     

The combined use of high-performance liquid chromatography and radioimmunoassay for the bioanalysis of nicomorphine and its metabolites

Methods have been developed for the determination of nicomorphine using reversed-phase HPLC with UV detection; for the simultaneous assay of morphine and mononicotinoylmorphine by a coupled normal-phase HPLC-radioimmunoassay method; and for conjugates of morphine and mononicotinoylmorphine by radioimmunoassay. The methods have been evaluated and applied to a pharmacokinetic study of nicomorphine administered intramuscularly.     

Three-year outcomes from the CRADLE study in de novo pediatric kidney transplant recipients receiving everolimus with reduced tacrolimus and early steroid withdrawal

CRADLE was a 36-month multicenter study in pediatric (≥1 to <18 years) kidney transplant recipients randomized at 4 to 6 weeks posttransplant to receive everolimus + reduced-exposure tacrolimus (EVR + rTAC; n = 52) with corticosteroid withdrawal at 6-month posttransplant or continue mycophenolate mofetil + standard-exposure TAC (MMF + sTAC; n = 54) with corticosteroids. The incidence of composite efficacy failure (biopsy-proven acute rejection [BPAR], graft loss, or death) at month 36 was 9.8% vs 9.6% (difference: 0.2%; 80% confidence interval: −7.3 to 7.7) for EVR + rTAC and MMF + sTAC, respectively, which was driven by BPARs. Graft loss was low (2.1% vs 3.8%) with no deaths. Mean estimated glomerular filtration rate at month 36 was comparable between groups (68.1 vs 67.3 mL/min/1.73 m²). Mean changes (z-score) in height (0.72 vs 0.39; P = .158) and weight (0.61 vs 0.82; P = .453) from randomization to month 36 were comparable, whereas growth in prepubertal patients on EVR + rTAC was better (P = .050) vs MMF + sTAC. The overall incidence of adverse events (AEs) and serious AEs was comparable between groups. Rejection was the leading AE for study drug discontinuation in the EVR + rTAC group. In conclusion, though AE-related study drug discontinuation was higher, an EVR + rTAC regimen represents an alternative treatment option that enables withdrawal of steroids as well as reduction of CNIs for pediatric kidney transplant recipients. ClinicalTrials.gov: NCT01544491.     

The burden of cutaneous disease in solid organ transplant recipients of color

Organ transplant recipients (OTRs) are at increased risk of cutaneous malignancy. Skin disorders in OTRs of color (OTRoC) have rarely been systematically assessed. We aimed to ascertain the burden of skin disease encountered in OTRoC by prospectively collecting data from OTRs attending 2 posttransplant skin surveillance clinics: 1 in London, UK and 1 in Philadelphia, USA. Retrospective review of all dermatological diagnoses was performed. Data from 1766 OTRs were analyzed: 1024 (58%) white, 376 (21%) black, 261 (15%) Asian, 57 (3%) Middle Eastern/Mediterranean (ME/M), and 48 (2.7%) Hispanic; and 1128 (64%) male. Viral infections affected 45.1% of OTRs, and were more common in white and ME/M patients (P < .001). Fungal infections affected 28.1% and were more common in ME/M patients (P < .001). Inflammatory skin disease affected 24.5%, and was most common in black patients (P < .001). In addition, 26.4% of patients developed skin cancer. There was an increased risk of skin cancer in white vs nonwhite OTRs (HR 4.4, 95% CI 3.5-5.7, P < .001): keratinocyte cancers were more common in white OTRs (P < .001) and Kaposi sarcoma was more common in black OTRs (P < .001). These data support the need for programs that promote targeted dermatology surveillance for all OTRs, regardless of race/ethnicity or country of origin.     

基于政策工具的我国三医联动政策量化分析

目的:对我国发布的27份三医联动政策文件的政策工具进行分析,探究我国三医联动政策体系的着重点与缺失点,为健全我国三医联动政策体系提供参考。方法;以我国2014—2019年发布的27份三医联动政策文件为研究对象,以政策工具为视角对纳入分析的政策文件进行摘录和编码,采用内容分析法和定量分析法对各项政策工具进行统计分析,并确定其运用情况。结果:260个政策编号中,需求型,供给型和环境型政策工具分别占6.9%、24.6%和68.5%;医疗、医保和医药政策工具分别占54.2%、24.6%和21.2%。由此可以看出,我国三医联动改革对环境现状的依赖程度较大,需求与供给政策相对不足,而医疗则是三医联动改革的核心关键点。结论:应适当增加需求型和供给型政策工具,着重解决医疗方面的重难点问题,促使医疗、医保、医药三个利益主体达成合力,形成“三医既联又动”的协同发展机制。     

精乌口服液的质量标准研究

目的:完善精乌口服液的质量标准。方法:采用薄层色谱法对精乌口服液中的制何首乌和黄精(制)进行定性鉴别,并采用高效液相色谱法对其中2,3,5,4’—四羟基二苯乙烯—2—O—β—D—葡萄糖苷含量进行测定。结果:精乌口服液中制何首乌和黄精(制)供试品薄层色谱中,在与对照品色谱相应的位置上,显相同颜色的斑点;2,3,5,4’—四羟基二苯乙烯—2—O—β—D—葡萄糖苷进样量在0·0562μg~0·6744μg范围内与峰面积积分值线性关系良好(r=0·9996),平均加样回收率为100·1%(RSD=1·89%)。结论:本方法回收率高、重现性好、简便、快速、准确,可用于本品的质量控制。     

3～6岁儿童角色采择与分享行为的关系

目的:研究3~6岁幼儿角色采择能力的发展与分享行为的关系。方法:随机选取临汾市和烟台市的两家幼儿园3~6岁的幼儿,每个年龄段30人,共120名幼儿,通过情景故事法和实验法来测量幼儿的角色采择能力与分享行为的关系。结果:(1)3~6岁的儿童角色采择能力的发展总体上存在显著的年龄差异(m=1.9-3.4),随年龄的增长呈上升趋势,5岁是幼儿角色采择能力发展的关键期;(2)儿童分享行为随年龄增长呈上升趋势(m=0.1-1.9);(3)3~6岁儿童的角色采择能力与分享行为有显著相关,5岁左右的幼儿的相关更显著(t=7.887,8.141,P0.001)。结论:3~6岁幼儿的角色采择能力与分享行为呈显著正相关,5岁左右幼儿的相关更显著。