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T-Wave Repolarization

Corresponds to the recovery phase of ventricular myocardium, representing repolarization. Its amplitude and symmetry are key indicators of myocardial injury.
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The statement of the theorem

The T-wave represents the repolarization phase, governed by the recovery of ion channel conductances. Let m,h,nm, h, n be the gating variables for the sodium, potassium, and calcium channels, respectively. The repolarization potential V(t)V(t) is determined by the steady-state solution of the biophysical model: \nV(t)=Erest−1Cm∫tdepoltIion(t′)dt′V(t) = E_{rest} - \frac{1}{C_m} \int_{t_{depol}}^{t} I_{ion}(t') dt' \nWhere Iion(t)=gˉNam(t)(V−ENa)+gˉKn(t)(V−EK)+gˉCah(t)(V−ECa)I_{ion}(t) = \bar{g}_{Na} m(t) (V-E_{Na}) + \bar{g}_{K} n(t) (V-E_{K}) + \bar{g}_{Ca} h(t) (V-E_{Ca}). The T-wave amplitude and symmetry are sensitive indicators of ion channel imbalances, particularly those affecting the potassium current IKI_K.