Key result
Myocardial I/R injury in rats drives sustained 7-day diastolic dysfunction despite transient systolic impairment.
Why the study?
The recovery pattern of left ventricular diastolic dysfunction during the early phase after ischemia reperfusion injury in acute myocardial infarction was unclear.
Population
Adult male Sprague-Dawley rats with myocardial infarction
Comparison
Myocardial ischemia and reperfusion injury vs sham group
Design
Preclinical animal study with echocardiographic assessment
Follow-up
7 days
Authors
Loading...
May support diastolic-focused monitoring after systolic recovery in acute MI; leaves open human translation and clinical impact.
p-value: p=<0.01
In a rat model of acute myocardial infarction, left ventricular diastolic dysfunction persists through the early phase of ischemia/reperfusion injury even after systolic function recovers.
Jo et al. (2018) studied Acute myocardial infarction / ischemia reperfusion injury. Myocardial ischemia and reperfusion injury via LAD ligation vs. Sham procedure was evaluated on Left ventricular systolic (EF, FS) and diastolic (E', E/E') function (p=<0.01). Myocardial ischemia and reperfusion injury in rats caused sustained diastolic dysfunction over 7 days, whereas systolic function decreased only at 2 hours and day 1 (P<0.01).
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: