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Review Paper | Cardiology Science | Volume 15 Issue 6, June 2026 | Pages: 526 - 530 | India
Disruptions in Cardiac Conduction and the Biology of Arrhythmias: Insights from Physiology, Ion Channels, and Translational Research
Abstract: Every year, millions of people die because their hearts stop beating in the right rhythm. Arrhythmias , disruptions in the heart's electrical conduction system , are behind a significant portion of those deaths, from sudden cardiac arrests that strike without warning to the quieter, chronic toll of conditions like atrial fibrillation. What makes this particularly striking is that the underlying machinery of the heart is extraordinarily precise. Under normal conditions, it truly coordinates every single beat with millisecond accuracy, billions of times over a lifetime. When something goes wrong at the molecular level, the consequences can be catastrophic. This review examines what that machinery looks like when it works, what goes wrong when it fails, and where medicine currently stands in its efforts to fix it at the source. The focus is on ion channels, gap junctions, and the specific molecular mechanisms re-entry circuits, channelopathies, calcium handling disorders that turn a healthy electrical system into an arrhythmogenic one. It also honestly examines the barriers between what science can currently do in the laboratory and what can realistically be offered to a patient. Gene therapy, CRISPR-based editing, and RNA therapeutics all feature ? not as science fiction, but as real and rapidly advancing approaches with genuine obstacles still to overcome.
Keywords: cardiac conduction, arrhythmias, ion channels, action potential, re-entry, channelopathy, gene therapy
How to Cite?: Steve Jerome, "Disruptions in Cardiac Conduction and the Biology of Arrhythmias: Insights from Physiology, Ion Channels, and Translational Research", Volume 15 Issue 6, June 2026, International Journal of Science and Research (IJSR), Pages: 526-530, https://www.ijsr.net/getabstract.php?paperid=MR26601234223, DOI: https://dx.dx.doi.org/10.21275/MR26601234223