AdamWysokinski/qtc.jl
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Julia function to calculate corrected QT interval (QTc)
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Adam Wysokiński e0eec1115f license changed to 2-clause BSD
2023-07-30 13:01:51 +02:00
LICENSE license changed to 2-clause BSD 2023-07-30 13:01:51 +02:00
qtc.jl update 2023-04-25 14:22:35 +02:00
README.md license changed to 2-clause BSD 2023-07-30 13:01:51 +02:00

README.md

qtc.jl

qtc(params)

Calculate corrected QT interval.

Arguments

  • params::Vector{String}: speed s: default is 25 (mm/s); no need to not provide units, QT qt: in seconds (s or sec), milliseconds (ms or msec), millimeters (mm); units have to specified, RR rr: in seconds (s or sec), milliseconds (ms or sec), millimeters (mm); units have to specified, HR hr: in bpm; no need to not provide units, e.g. qt=12mm, rr=18mm, hr=60, s=50

Returns

Named tuple containing:

  • bazett::Float64
  • fridericia::Float64
  • hodges::Float64
  • sagie::Float64

Notes

  • Bazett: QTc = QT / √RR, source: Bazett HC (1920) An analysis of the time-relations of electrocardiograms. Heart 7:353-370.
  • Fridericia: QTc = QT / ∛RR, source: Fridericia LS (1920) Die Systolendauer im Elektrokardiogramm bei normalen Menschen und bei Herzkranken. [The duration of systole in the electrocardiogram of normal subjects and of patients with heart disease.] Acta Medica Scandinavica 53:469–486.
  • Hodges: QTc = QT + 0.00175 × (HR - 60), source: Hodges M, Salerno D, Erlien D (1983) Bazett's QT correction reviewed. Evidence that a linear QT correction for heart is better. J Am Coll Cardiol 1:694.
  • Sagie: QTc = QT + 0.154 × (1 - RR), source: Sagie A, Larson MG, Goldberg RJ, Bengtson JR, Levy D (1992) An improved method for adjusting the QT interval for heart rate (the Framingham Heart Study). Am J Cardiol 70:797–801.

License

This software is licensed under The 2-Clause BSD License.