简介:AbstractBackground:Super-responders (SRs) to cardiac resynchronization therapy (CRT) regain near-normal or normal cardiac function. The extent of cardiac synchrony of SRs and whether continuous biventricular (BIV) pacing is needed remain unknown. The aim of this study was to evaluate the cardiac electrical and mechanical synchrony of SRs.Methods:We retrospectively analyzed CRT recipients between 2008 and 2016 in 2 centers to identify SRs, whose left ventricular (LV) ejection fraction was increased to ≥50% at follow-up. Cardiac synchrony was evaluated in intrinsic and BIV-paced rhythms. Electrical synchrony was estimated by QRS duration and LV mechanical synchrony by single-photon emission computed tomography myocardial perfusion imaging.Results:Seventeen SRs were included with LV ejection fraction increased from 33.0 ± 4.6% to 59.3 ± 6.3%. The intrinsic QRS duration after super-response was 148.8 ± 30.0 ms, significantly shorter than baseline (174.8 ± 11.9 ms, P = 0.004, t = -3.379) but longer than BIV-paced level (135.5 ± 16.7 ms, P = 0.042, t = 2.211). Intrinsic LV mechanical synchrony significantly improved after super-response (phase standard deviation [PSD], 51.1 ± 16.5° vs. 19.8 ± 8.1°, P < 0.001, t= 5.726; phase histogram bandwidth (PHB), 171.7 ± 64.2° vs. 60.5 ± 22.9°, P < 0.001, t= 5.376) but was inferior to BIV-paced synchrony (PSD, 19.8 ± 8.1° vs. 15.2 ± 6.4°, P = 0.005, t = 3.414; PHB, 60.5 ± 22.9° vs. 46.0 ± 16.3°, P = 0.009, t = 3.136).Conclusions:SRs had significant improvements in cardiac electrical and LV mechanical synchrony. Since intrinsic synchrony of SRs was still inferior to BIV-paced rhythm, continued BIV pacing is needed to maintain longstanding and synchronized contraction.
简介:<正>自从利特和银赫的KTR精彩对话在《纯韩时尚》推出后,这个版块一直受到广大LS们的喜爱。现在除了KTR,我们还将刊载希大主持的YoungStreet。希望通过这个哥哥们的真实对话版块,能让大家了解到更多关于哥哥们的消息。注解:Girl’sDay,是韩国DreamTeaEntertainment推出的五人女子组合,成员们各具特色,以擅长舞蹈而闻名。赫:泰民跟利特差了十岁。特:跟银赫不也差了七岁吗?赫:啥?特:和银赫也差了七岁。赫:嗯,是啊,差了七岁,怎么了?(特DJ把赫DJ的麦克关掉)特:我们来介绍下一个留言……(赫DJ把麦克打开)赫:啊!为什么总是关掉我的麦克啊?赫:这(关麦)是利特的权限吗?
简介:ThesurvivalprobabilityofsuperheavynucleiproducedincoldfusionreactionsisstudiedbyusingthestandardFermigasleveldensityformulaandanalyzedwithfissionandneutronevaporationcharacteristicspredictedindifferenttheoreticalmodels.Theleveldensityformulausedinthislettersuppressestheratioofneutronemissionwidthtofissionwidth,Гn/Гf.ThedependenceofГn/Гfonthesaddlepointleveldensityparameterandexcitationenergyisalsoinvestigated.
简介:Theset-valuedoptimizationproblemwithconstraintsisconsideredinthesenseofsuperefficiencyinlocallyconvexlineartopologicalspaces.Undertheassumptionofic-cone-convexlikeness,byapplyingtheseperationtheorem,Kuhn-Tucker's,Lagrange'sandsaddlepointsoptimalityconditions,thenecessaryconditionsareobtainedfortheset-valuedoptimizationproblemtoattainitssupereffcientsolutions.Also,thesufficientconditionsforKuhn-Tucker's,Lagrange'sandsaddlepointsoptimalityconditionsarederived.
简介:WeprovethatatopologicalspaceisuniformEberleincompactiffitishomeomorphictoasuperweaklycompactsubsetCofaBanachspacesuchthattheclosedconvexhullcoCofCissuperweaklycompact.WealsoshowthataBanachspaceXissuperweaklycompactlygeneratediffthedualunitballBx*ofX^*initsweakstartopologyisafflnelyhomeomorphictoasuperweaklycompactlyconvexsubsetofaBanachspace.
简介:在在中国和另外的国家引起两个的超级米饭的大进步在最近的年里被取得了。然而,在超级米饭繁殖有三个主要问题:1)超级米饭变化仍然是稀罕的;2)展出的很超级的米饭变化缩小适应性;并且3)当前的繁殖理论在米饭生长模型上强调了太多,但是他们在为米饭繁殖的指导是不切实际的。根据作者ther冰繁殖上的经验,包括三步的繁殖策略(繁殖的超级父母,超级杂交稻繁殖和超级杂交稻采种)被建议,并且各个的目的走,达到目标的关键技术详细被阐明。杂交稻的超级父母应该所有农学的特点地展出优秀性能,与收益或水池能力在地区性的试用到达杂交稻控制的水平。超级杂交稻联合应该满足下列标准:好米饭质量,宽改编,耐倒伏性,到主要昆虫和疾病的电阻,和收益上面在国家、省的地区性的试用在控制变化上超过了8%。达到目标,技术策略例如选择父母的最佳的联合,增加选择压力,对理想的植物类型,优秀生理性状和所有农学的特点的和谐给予更多的注意,应该被强调。采种的收益应该为联合分别地从不育系的早季节、中间季节的类型导出的超级杂交稻到达3.75t/ha和5.25t/ha。为提起采种产量的主要技术包括了选择最佳采种地点,并且由父本的集中的耕作改进花粉的数量,用有大水池能力和好outcrossing特征的不育系。根据在超级杂交稻上的三步的繁殖的技术,二更起来米饭父母,包括父本996并且ther瞬间(相片)遗传因子的男性无菌[T(P)公克]线C815S,被引起。而且,超级早杂交稻联合,Luliangyou996,能在YangtzeRiver的中间、更低的活动范围被用作一个双季节早熟稻变化,中国,被使用超级米饭引起作为父本的变化996,并且有比在地区性的试用的控制变化,两个湖南Provinceand说的高产的几杂交稻联合作为母