白癜风患者可治吗 http://m.39.net/news/a_5651461.html
TODAY今日发布CircCardiovascImagingJune01,:13(6)今日发布03篇（共计04篇）PediatricTransplantationEarlyRecent,May27,今日发布01篇Neuromodulation:TechnologyattheNeuralInterfaceEarlyRecent,May27,今日发布01篇JAMAEarlyRecent,May27,今日发布04篇JAMACardiologyEarlyRecent,May27,今日发布07篇JAMAINTERNMEDEarlyRecent,May27,今日发布01篇ATVBJune01,:40(6)今日发布21篇NEJMMay28,:(22)今日发布27篇CirculationEarlyRecent,May28,今日发布01篇ATVBEarlyRecent,May28,今日发布05篇CirculationResearchEarlyRecent,May28,今日发布01篇PediatricTransplantationEarlyRecent,May28,今日发布01篇ESCHeartFailureEarlyRecent,May28,今日发布01篇RECOMMEND推荐阅读01倾斜性血管迷走性晕厥时血管抑制和心脏抑制的新定量方法CirculationResearchresearch-articleJGertvanDijk,MaryamGhariq,etc.2小时前等28用户推荐阅读本文Rationale:Assessingtherelativecontributionsofcardioinhibitionandvasodepressiontothebloodpressure(BP)decreaseintilt-inducedvasovagalsyncope(T-VVS)requiresmethodsthatreflectBPphysiologyaccurately.评估心脏抑制和血管抑制对倾斜性血管迷走性晕厥（T-VVS）患者血压下降的相对贡献需要准确反映血压生理学的方法。Objective:ToassesstherelativecontributionsofcardioinhibitionandvasodepressiontoT-VVSusingnovelmethods.用新方法评价心脏抑制和血管抑制对T-VVS的相对贡献。MethodsandResults:WestudiedtheparametersdeterminingBP,i.e.strokevolume(SV),heartrate(HR)andtotalperipheralresistance(TPR),inpatientswithT-VVSdocumentedbycontinuousECGandvideoEEGmonitoring.Wedefinedthebeginningofcardioinhibitionasthestartofaheartratedecrease(HR)beforesyncope,andusedlogarithmsofSV-,HR-andTPR-ratiostoquantifythemultiplicativerelationBP=SV·HR·TPR.Wedefinedthreestagesbeforesyncopeandtwoafteritbasedondirectionchangesoftheseparameters.TheearliestBPdecreaseoccurrednineminutesbeforesyncope.Cardioinhibitionwasobservedin91%ofpatientsatamediantimeof58s.beforesyncope.AtthattimeSVhadastrongnegativeeffectonBP,TPRalessernegativeeffect,whileHRhadincreased(allp0.).Attheonsetofcardioinhibition,medianHRwasat98bpmhigherthanbaseline.CardioinhibitionthusinitiallyonlyrepresentedareductionofthecorrectiveHRincrease,butwasnonethelessac