A new electrocardiographic evaluation in hyperkalemia: frontal QRS-T angle

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Mustafa Yedigoz1, Akkan Avci2, Kemal Sener3

  • 1Department of Emergency Medicine, Health Science University, Adana City Research and Training Hospital, Adana, Türkiye.

Irish Journal of Medical Science
|June 21, 2025
PubMed

Insights

The frontal QRS-T angle in hyperkalemia patients did not predict mortality, but its correction during treatment may serve as a valuable follow-up parameter. This study evaluated ECG changes in hyperkalemia patients.

Area of Science:

  • Cardiology
  • Electrophysiology

Background:

  • Electrocardiography (ECG) is a vital tool for assessing cardiac involvement in hyperkalemia.
  • Hyperkalemia poses significant risks to cardiac function.

Purpose of the Study:

  • To determine the predictive value of the frontal QRS-T angle for mortality in hyperkalemia patients.
  • To assess the impact of treatment on the frontal QRS-T angle.

Main Methods:

  • A prospective study included 121 hyperkalemia patients.
  • ECG parameters, including the frontal QRS-T angle, were recorded on admission.
  • PR, QRS, QT, and QTc intervals were measured.

Main Results:

  • ECG parameters, including the frontal QRS-T angle, did not significantly predict mortality via ROC analysis.
  • Significant reductions in PR, QTc, QRS, T-amplitude, T duration, and frontal QRS-T values were observed post-treatment.
  • The frontal QRS-T angle decreased significantly after treatment.

Conclusions:

  • While not a mortality predictor, the frontal QRS-T angle's widening in hyperkalemia and subsequent correction can be a key monitoring parameter.
  • ECG findings, particularly the frontal QRS-T angle, offer insights into treatment response in hyperkalemia.
Abstract

Keywords:
ElectrocardiographyEmergency departmentFrontal QRS-T angleHyperkalemia

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