Dorantes SM

Language: Spanish
References: 0
Page: 266-273
PDF size: 256.23 Kb.

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To the Editor:

I would like to make some comments concerning the article published in CorSalud journal: Depolarization (QRS complex) or ventricular repolarization (QT interval): Which one adds further value to diagnosis and prognosis in different clinical scenarios?
The title might cause some confusion: it seems that these two edges of the problem are being con-fronted and there is no reason to confront them but to use both to reach a greater approach to the reality of each patient in terms of risk stratification using electrical predictors of malignant ventricular arrhyth-mias (MVA) and sudden death (SD). We have to combine, not divide, add and not subtract, why pitting one process against the other? Moreover, the QT interval is not the only one that represents repo-larization. Recognizing the true transcendence of each premonitory sign would be still difficult even if we use both processes, unless there was a previous event (MVA or aborted SD).
Depolarization and repolarization share process-es and phenomena, such as alternation, non-uni-formity, heterogeneity, dispersion and electrical re-modeling.