December 1, 1996Journal of Cardiovascular Electrophysiology
Effect of Coronary Perfusion of Heptanol on Conduction and Ventricular Arrhythmias in Infarcted Canine Myocardium
Why the study?
Does intracoronary heptanol modulate conduction and susceptibility to inducible ventricular tachycardia in a canine model of healed myocardial infarction?
Population
11 dogs with healed left anterior descending (LAD) infarction
Comparison
Localized intracoronary infusion of heptanol via… vs Control state (no heptanol infusion)
Design
Preclinical
Authors
Discussion
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Member takes
Implication
Bimodal VT effects in canine MI model caution against clinical translation; leaves open selective gap junction modulation as antiarrhythmic strategy.
Structured PICO
Does intracoronary heptanol modulate conduction and susceptibility to inducible ventricular tachycardia in a canine model of healed myocardial infarction?
P
Population
11 dogs with healed left anterior descending (LAD) infarction
I
Intervention
Localized intracoronary infusion of heptanol (0.5 mM and 1.0 mM) via a constant-flow bypass system
C
Comparator
Control state (no heptanol infusion)
O
Outcome
Cardiac conduction (delayed local activation times and conduction velocity) and susceptibility to inducible ventricular tachycardia (VT)surrogate
In a canine model of healed myocardial infarction, heptanol demonstrated a bimodal effect on ventricular tachycardia susceptibility, highlighting the complex role of cellular coupling modulation in arrhythmogenesis.
Cite This Study
Callans et al. (1996) studied this question.