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[Evolution of the ST segment in myocardial reperfusion]
J P Monassier1, P G Steg, A Elkouby
1Hôpital du Hasenrain, service de chirurgie cardiaque, Centre hospitalier de Mulhouse, .
Archives Des Maladies Du Coeur Et Des Vaisseaux
|July 1, 1993
Summary
Reperfusion syndrome, including ST segment changes, indicates restored coronary flow after intracoronary thrombolysis. Rapid ST elevation decrease suggests good myocardial outcome, but transient increases need further study.
Area of Science:
- Cardiology
- Physiology
Context:
- Intracoronary thrombolysis reestablishes coronary blood flow.
- Reperfusion syndrome encompasses clinical, electrical, and biological changes post-reperfusion.
Purpose:
- To detail the chronological sequence of events during reperfusion.
- To clarify the role and significance of ST segment changes in reperfusion syndrome.
Summary:
- ST segment changes are a hallmark of reperfusion syndrome, occurring in nearly all cases.
- These changes can manifest as ST elevation, which may rapidly decrease or transiently increase.
- Combined with enzyme changes and arrhythmias, ST changes aid in diagnosing successful coronary flow reestablishment.
Impact:
- Rapid ST elevation decrease correlates with favorable myocardial outcomes.
- The prognostic value of transient ST elevation increases (reperfusion ischemia) requires further investigation.
- Myocardial prognosis post-reperfusion is influenced by both ischemic and reperfusion-induced cellular damage.