摘要
目的研究慢性肺疾病患者肺动脉血流频谱与肺动脉压的关系,以期寻找能较好反映肺动脉压的指标,并推导多元回归方程,以便能更准确估测肺动脉压力。方法在行右心导管检查同时,用超声心动图观察54例慢性肺疾病患者肺动脉血流频谱。将脱机分析的14个多普勒参数分别与肺动脉压进行相关分析,并且进行多元逐步回归分析。结果多普勒参数右室射血前期(PEP)/加速时间(AcT)、平均加速度(AcVm)、速度积分(VI)/[心电图Q~T点间期(QT)×最大速度(Vmax)]及右室射血时间(RVET)/QT与肺动脉压相关较好;推算出多元回归方程。
ObjectivePulmonaryarteryflowspectrumofpatientswithchronicpulmonarydiseasewerestudiedinrdertofindexcelentDopplerIndexesreflectedpulmonaryarterypressure,andestab-lishmultipleregressionequationforestimatingpulmonaryarterypressuremoreaccurately.MethodsDuringcatheterization,54patientswithchronicpulmonarydiseasewereexaminedbyechocardiography.FourteenDopplerindexesofspectrumwerecomparedwiththepulmonaryarterypressurebycathetersi-multaneously,andmultipleregressionequationsweretaken.ResultsThereweresignificantcorrelationbetweenDopplerindexesPEP/AcT,AcVm,VI/(QTxVmax),RVET/QTandpulmonaryarterypres-sure.Twomultipleregressionequationswerededuced:PAPs(kPa)=[9.4×PEP/AcT-1.4×AcVm-126.1×VI/(QT×Vmax)+75]÷7.5andPAPm(kPa)=[7.5×PEP/AcT-1.2×AcVm-87.7×VI/(QT×Vmax)+48]÷7.5.ConclusionsAbovetworegressionequationscouldbeusedtononinvasivelyevaluatepulmonaryarterypressureinpatientswithchronicpulmonarydisease.
出处
《中华结核和呼吸杂志》
CAS
CSCD
北大核心
1996年第5期290-293,共4页
Chinese Journal of Tuberculosis and Respiratory Diseases
基金
国家八五课题
关键词
超声心动图
肺性高血压
阻塞性肺疾病
EchocardiographyHypertension,pulmonaryLungdiseases,obstructive