吸入伊洛前列素对肺动脉高压患者右心室功能改善的即刻效应:心脏MRI初步研究

背景与目的肺动脉高压(pulmonary arterial hypertension,PAH)是以肺循环压力异常增高为特征的进展性疾病,可引起右心室(right ventricle,RV)功能进行性衰竭,最终导致死亡。因此RV功能的评估在PAH的诊断、随访中起着重要作用。心脏磁共振成像(cardiac magnetic resonance imaging,CMRI)成为无创评价心室功能的参照标准,尤其是RV功能。本研究通过CMRI评估吸入伊洛前列素对PAH患者RV功能影响的即刻效应。方法 2012年3月-2014年3月PAH患者48例,吸入单剂量20μg的伊洛前列素溶液前、后立即进行CMRI检...

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Published in中国肺癌杂志 Vol. 18; no. 3; pp. 167 - 171
Main Author 陆青青 李东 杨振文 韩艳 崔倩 张璋 于铁链
Format Journal Article
LanguageChinese
Published 天津医科大学总医院放射科, 天津,300052%天津医科大学总医院心内科, 天津,300052 2015
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ISSN1009-3419
1999-6187
DOI10.3779/j.issn.1009-3419.2015.03.07

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Summary:背景与目的肺动脉高压(pulmonary arterial hypertension,PAH)是以肺循环压力异常增高为特征的进展性疾病,可引起右心室(right ventricle,RV)功能进行性衰竭,最终导致死亡。因此RV功能的评估在PAH的诊断、随访中起着重要作用。心脏磁共振成像(cardiac magnetic resonance imaging,CMRI)成为无创评价心室功能的参照标准,尤其是RV功能。本研究通过CMRI评估吸入伊洛前列素对PAH患者RV功能影响的即刻效应。方法 2012年3月-2014年3月PAH患者48例,吸入单剂量20μg的伊洛前列素溶液前、后立即进行CMRI检查,测量RV的舒张末期容积(end-diastolic volume,EDV)、收缩末期容积(end-systolic volume,ESV)、每搏输出量(stroke volume,SV)、射血分数(ejection fraction,EF)、心输出量(cardiac output,CO)、舒张末期面积(end-diastolic area,EDA)及收缩末期面积(end-systolic area,ESA)。RV面积变化百分比(percentage of RV area change,%RVAC)由公式[%RVAC=(EDA-ESA)/EDA×100%]计算获得。采用Wilcoxon符号秩和检验或配对t检验分析吸入伊洛前列素前、后RV功能参数变化。P〈0.05为差异有统计学意义。结果吸入伊洛前列素后,患者的RV功能改善,RV EDV、RV ESV显著下降(P=0.007,P〈0.001),RV SV、RV EF及%RVAC增加(P=0.014,P=0.009,P=0.006),RV CO无变化(P=0.851)。结论吸入伊洛前列素能立即明显改善PAH患者的RV功能,CMRI能准确、无创地评估该即刻效应。
Bibliography:Qingqing LU;Dong LI;Zhenwen YANG;Yan HAN;Qian CUI;Zhang ZHANG;Tielian YU(1.Department of Radiology, Tianjin Medical University General Hospital;Department of Cardiovascular Disease, Tianjin Medical University General Hospital; Tianjin 300052, China)
Magnetic resonance imaging; Iloprost; Hypertension; Pulmonary; Ventricular function; right
Background and objective Pulmonary arterial hypertension(PAH) is a progressive disorder characterized by abnormally elevated blood pressure of the pulmonary circulation. Without treatment, PAH progresses rapidly to right ventricular(RV) failure and even death. Cardiac magnetic resonance imaging(CMRI) has been an accurate and reproducible tool to assessment of RV morphology and function, which are important factors in the prognosis of patients with PAH. The aim of this study is to investigate acute RV response to inhalation of aerosolized iloprost in patients with PAH using CMRI. Method From March 2012 to March 2014, 48 patients with PAH underwent CMRI before and immediately af
ISSN:1009-3419
1999-6187
DOI:10.3779/j.issn.1009-3419.2015.03.07