成人动脉导管未闭合并重度肺动脉高压介入治疗术后分析Study of patients with patent ductus arteriosus and severe pulmonary hypertension after transcatheter closure
李海嵘,陈关良,方小丽,蔡兴赳
摘要(Abstract):
目的分析动脉导管未闭(patent ductus arteriosus,PDA)并发重度肺动脉高压(pulmonary arterial hypertension,PAH)经介入封堵术后肺动脉收缩压(systolic pulmonary artery pressure,s PAP)的变化。方法对56例PDA并发s PAP>70 mm Hg(1 mm Hg=0.133 k Pa)和肺/体循环血量比值(Qp/Qs)>1.5的患者实施封堵术,术中实时监测封堵术前后s PAP变化,术后定期随访并行超声心动图检查。结果所有患者均成功实施封堵术,术后即刻s PAP恢复正常18例(32.1%),另有轻度PAH 25例(44.6%)、中度PAH 8例(14.3%)和重度PAH 5例(8.9%)。封堵术后s PAP[(49.6±18.3)mm Hg比(95.3±23.1)mm Hg,P<0.01]、肺动脉舒张压[(23.3±12.7)mm Hg比(53.6±12.2)mm Hg,P<0.01]、m PAP[(30.7±15.5)mm Hg比(69.8±14.3)mm Hg,P<0.01]较术前均显著下降,差异均有统计学意义。随访1~7年(中位随访时间4年)。轻度PAH患者在随访的6个月内恢复正常。中度PAH患者在1年内降为轻度或恢复正常。重度PAH患者中度以上PAH持续存在,2例在随访的1年内降为中度,2例在随访的2年内降为中度,1例重度患者PAH持续存在,并在随访的第3年发生迟发性PAH(1.8%),Qp/Qs>1.5。结论术后PAH为轻、中度患者,在1年内恢复正常或降至轻度。术后PAH为重度者,中度以上PAH将持续存在,并可能出现迟发性PAH。
关键词(KeyWords): 动脉导管未闭;肺动脉高压;介入治疗;迟发性肺动脉高压
基金项目(Foundation):
作者(Author): 李海嵘,陈关良,方小丽,蔡兴赳
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