Abstract:
:Two-dimensional contrast perfusion echocardiography was performed in 14 patients who underwent percutaneous transluminal coronary angioplasty to test the efficacy of this new technique for defining the area at risk of dyskinesis during acute coronary occlusion. In nine patients (group A) selective coronary injection of echocontrast medium through the central lumen of the angioplasty catheter was performed immediately before balloon inflation. This produced regional myocardial enhancement that defined the area of dyskinesis after balloon inflation. In five patients (group B) who underwent left coronary angioplasty, echocontrast medium was injected through the introducer catheter positioned in the left main coronary artery during balloon inflation. In each case this produced regional myocardial enhancement remote from the area of dyskinesis. There were no complications related to the intracoronary echocontrast injections, which produced no discernible exacerbation of chest pain or left ventricular contractile dysfunction. These data indicate that selective coronary injection of echocontrast medium defines the perfusion territory of the artery injected and also provides a means of identifying the area at risk of dyskinesis after balloon occlusion of the artery.
journal_name
Am Heart Jjournal_title
American heart journalauthors
Griffin B,Timmis AD,Henderson RA,Sowton Edoi
10.1016/0002-8703(87)90744-7subject
Has Abstractpub_date
1987-09-01 00:00:00pages
497-502issue
3eissn
0002-8703issn
1097-6744pii
0002-8703(87)90744-7journal_volume
114pub_type
临床试验,杂志文章abstract::The expected implant lifetime of pacemaker generators has been extended with the introduction of lithium power sources. Consequently, the pacing lead may become the component that determines the total implant lifetime of the pacemaker. This fact emphasizes the necessity for accurate assessment of the integrity of a ch...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(84)90269-2
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journal_title:American heart journal
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journal_title:American heart journal
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journal_title:American heart journal
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
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journal_title:American heart journal
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pub_type: 杂志文章,多中心研究,随机对照试验
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pub_type: 杂志文章
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