【摘要】 应用无创左右心功能同步检测仪测定原发性高血压患者２３４例的心功能参数与４０例正常人比较。结果显示心肌缺血阈值下降；左室射血分数、左室舒张末期压力、肺毛细血管平均嵌楔压、心肌耗氧量、左室舒张末期血量、左室射血阻抗和动脉弹性模量等较对照组升高（Ｐ＜０．０１）。原发性高血压的心脏早期病变主要表现为左室舒张功能障碍（３５％），其受损程度与年龄、病程无相关性。年龄６０岁左右的原发性高血压患者心率维持在５５～６９次／ｍｉｎ范围内，似有利于心肌供血。心功能检测对无症状心功能不全的早期诊断与防治具重要意义更多还原

【Abstract】 Investigationofcardiacfunctionalcapacityin234casesofessentialhyperten-sion(EH)camparedwith40normalsubjectsascontrolswasperformedwithanon-invasivesynchronousventricularfunctiondetector.Theresultsshowedthatleftventricularejectionfraction,leftventricularend-diastolicpressure,meanpulmonarycapilarywedgepressure,myocardialoxygenconsumption,leftventricularend-diastolicvolume,leftventricularejec-tionresistanceandmodulusofarterialelasticitywerehigherinpatientswithEHthaninthecontrols.Themyocardialischemicthresholdwaslowerthaninthenormalsubjects(P<0.01).Asmentionedabove,theleftventriculardiastolicdisturbance(LVDD)couldbeamainearlysigninEHwithasymptomaticheartfailure.TheseverityofLVDDinEHhadnosig-nificantrelationwiththecourseofilnesandpatientsages.ItissuggestedthatinEHpa-tientsaround60years,theheartrateof55～69beats/minseemsbeneficialforpreventionofmyocardialischemia.Thismethodismorespecific,mostsensitiveandcanbeusefulforearlydiagnosis,preventionandtreatmentinEHwithasymptomaticheartfailure.更多还原