摘要
目的:探讨经皮球囊二尖瓣成形术PBMV手术前后风心病二尖瓣狭窄MS患者的血流动力学变化的特点。方法:用二维多普勒超声心动图分别在PBMV前后测定32例MS患者的二尖瓣口面积MVA、左房容量和压力负荷指标、二尖瓣及肺静脉血流频谱指标、心功能指标及肺动脉收缩压PASPd,并进行分析对比。结果:LAD、LAV、LAT、LAPd、MVPV、MVPG、PHT及PASPd均降低,而瓣膜有效面积MVA增大P<005～0001。肺静脉血流动力学指标:SPV、SVTI及SF增大P<005～0001。心功能指标:SV及CO增大P<005～0001。超声与心导管测定的LAPd和PASPd与LAPc和PASPc高度相关r=089或r=086,P<0001。SPV、SVTI及SF与MVA呈显著正相关r分别为042、046及051,P<001,而与LAPc呈显著性负相关r分别为-056、-061及-073,P<001。结论:多普勒超声心动图可全面客观地反映PBMV前后MS患者的血流动力学变化特点,方法简单、可靠实用,有助于PBMV的术前病人筛选及术后随访。
Objective:To evaluate characterization of hem odynamic changes before and after percutaneous balloon mitral valvulo-plasty(PBMV)in patients with mitral stenosis(MS ).Methods:MVA,LAD,LAV,LAT,LAP d ,MVPV,MVPG,PHT and PASP d were measured by two dimensional Doppler echocardiography in thirty -two patients with rheumatic MS before and after PBMV.Results;LAD,LAV,LAT,LAP d ,MVPV,MVPG,PHT and PASP d were decreased after PBMV,but MVA in creased(P<0.05～0.001),SPV,SVTI and SF were increased(p<0.05～0.001),SV and CO increased(P<0.05～0.001).A significant correlation was foun d between LAD d and LAPc,PASP d and PASP c (r =0.89or r =0.86,P<0.001).There were significant positive correlations between MVA and SPV、SVTI and SF,(r =0.42,0.46and 0.51,P<0.01respectively),but negative correlation between LA P c and SPV,SVTI and SF(r =-0.56、-0.61and -0.73,P<0.01respectively).Conclusions:Two dimensional Doppler echocardio graphy is a comprehensive and objective method for evaluating the characteristics of hemodynamic changes before and after PBMV in patients with MS,and is simple,reliable,feasibl e,and helpful in screening patients for PBMV and follow up examination.after PBMV.
出处
《中国临床医学影像杂志》
CAS
2001年第4期256-258,共3页
Journal of China Clinic Medical Imaging
关键词
二尖瓣
血液动力学
超声检查
mitral valve
hemodynamics
ultra sonography
