Correlation of baseline plasminogen activator inhibitor activity with patency of the infarct artery after thrombolytic therapy in acute myocardial infarction

Gabriel I. Barbash*, Hanoch Hod, Arie Roth, Hilton I. Miller, Shemuel Rath, Yedahel Har Zahav, Michaela Modan, Ariela Zivelin, Shlomo Laniado, Uri Seligsohn

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Increased levels of plasminogen activator inhibitor (PAI) have recently been described in patients with acute myocardial infarction (AMI). To correlate PAI levels to patency of infarct arteries after thrombolytic therapy with recombinant tissue-type plasminogen activator (rt-PA), 125 consecutive patients with AMI were examined. Blood levels off fibrinogen, plasminogen, tissue plasminogen activator (t-PA) and PAI were measured before treatment initiation, 10 minutes after completion of rt-PA infusion and 24 and 48 hours after treatment. Coronary angiography, performed in all patients 72 hours after beginning rt-PA infusion, revealed patent infarct arteries in 97 patients and occluded infarct arteries in 28 patients. Pretreatment levels of PAI were significantly higher in patients with occluded infarct arteries (18.0 ± 11.5 vs 10.5 ± 9.3 IU/ml, p < 0.01). Conceivably, higher levels of PAI may interfere with the natural thrombolytic process and make pharmacologic thrombolytic intervention less effective.

Original languageEnglish
Pages (from-to)1231-1235
Number of pages5
JournalAmerican Journal of Cardiology
Volume64
Issue number19
DOIs
StatePublished - 1 Dec 1989
Externally publishedYes

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