【摘要】 应用脉冲式或连续式多普勒超声技术，对１８例海拔３２００ｍ高原正常人及２５例高原心脏病（ＨＡＨＤ）患者测定其肺动脉压。正常组及ＨＡＨＤ无瓣膜返流组１０例应用Ｈａｈａｍ回归方程，肺动脉平均压（ＰＡＭＰ）分别为２．８４±０．４及３．７３±０．５７ｋＰａ（ｋＰａ＝７．５ｍｍＨｇ）；ＨＡＨＤ有三尖瓣返流组８例用ＴＲＰＧ法测得ＰＡＳＰ为６．１３±１．７３ｋＰａ；ＨＡＨＤ有肺动脉瓣返流组Ｔ例用ＰＲＰＧ法测得ＰＡＤＰ为４．０±０．７３ｋＰａ。表明多普勒超声技术的不同方法可用于不同病理状态下高原低氧性肺动脉高压的测定，并可揭示出现瓣膜返流改变时高原低氧性肺动脉高压的程度。更多还原

【Abstract】 ThepulmonaryarterypresurewasevaluatedbyDopplerechocardiographyin18subjectsofnor malhighaltitudcnativeand25patientswithhighaltitudeheartdesease(HAHD).TheresultshowedthatPAMPwas2.84+0.4kPainnormalsubjectsand3.73±0.57in10casesofHAHDwithoutvalveregurgitation(VR)byHaham′sregresiveformula:PAMP=(7.9-0.45×AT);PASPwas6.13±1.73kPain8casesofHAHDwithtricuspidRegurgitationbyTRPGmethod;PADPwas4.0+0.73kPain7casesofHAHDwithpulmonaryarterialvalveRegurgitationbyPRPGmethod.Theconclu sionisthatdiferentmethodsofDopplerechocardiographycanbeusedforevaluatinghypoxicpul monaryhypertnsionatvariouspathologecstate,andtheextentofhighaltitudehypoxicpulmonaryhy perensioninthepresenceofvalveregurgitationcanbeshown.更多还原