Key result
Simulated high-intensity electric field application caused arrhythmogenic responses through transient sarcolemma rupture, producing EADs in normal cells and DADs in Na+/Ca2+ overloaded cells.
Why the study?
Does simulated electroporation from high-intensity dc shocks cause arrhythmogenic responses in ventricular action potential models?
Does simulated electroporation from high-intensity dc shocks cause arrhythmogenic responses in ventricular action potential models?
High-intensity electric fields may cause arrhythmogenic responses through transient sarcolemma rupture, leading to different subcellular events in normal versus pathological ventricular cells.
Authors
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May warrant caution with high-intensity DC shocks; hypothesis-generating in models, requiring in vivo validation before clinical relevance.
Ohuchi et al. (2002) studied Ventricular muscle electrophysiology (simulated). Simulated reversible breakdown of cell membrane (electroporation) was evaluated on Arrhythmogenic responses (early and delayed afterdepolarizations). Simulated high-intensity electric field application caused arrhythmogenic responses through transient sarcolemma rupture, producing EADs in normal cells and DADs in Na+/Ca2+ overloaded cells.
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