Mechanisms, Risk Factors, and Management of Acquired Long QT Syndrome: A Comprehensive Review

<table>Myocardial action potential. Phase 0 rapid depolarization is mediated by sodium entry into cells. Phase 1 and 3 repolarization results from potassium efflux from cells. Balanced slow calcium entry and potassium exit cause the plateau in phase 2. Potassium reenters and sodium exits cells during phase 4 recovery.</table>

The Scientific World Journal

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Figure 2

Figure 2: Mechanisms, Risk Factors, and Management of Acquired Long QT Syndrome: A Comprehensive Review 