QT Interval Correction (EKG)

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10 Year Coronary Heart Disease Risk
2 % (0 – 1 points)
3 % (2 – 3 points)
4 % (4 points)
5 % (5 points)
6 % (6 points)
7 % (7 points)
8 % (8 points)
9 % (9 points)
11 % (10 points)
13 % (11 points)
15 % (12 points)
17 % (13 points)
20 % (14 points)
24 % (15 points)
27 % (16 points)
>eq 32 % (17 – 25 points)

10 Year Coronary Heart Disease Risk
3 % (0 points)
4 % (1 – 2 points)
6 % (3 points)
7 % (4 points)
9 % (5 points)
11 % (6 points)
14 % (7 points)
18 % (8 points)
22 % (9 points)
27 % (10 points)
33 % (11 points)
40 % (12 points)
47 % (13 points)
>eq 56 % (14 – 29 points)

Total Criteria Point Count:0
* Required

Formula

RRInterval = 60 / HeartRate
QTICorrected = QTInterval / sqr(RRInterval)

References

  1. Baumert M, Porta A, Vos MA, et al. QT interval variability in body surface ECG: measurement, physiological basis, and clinical value: position statement and consensus guidance endorsed by the European Heart Rhythm Association jointly with the ESC Working Group on Cardiac Cellular Electrophysiology. Europace. 2016;18(6):925-44.
  2. Postema PG, Wilde AA. The measurement of the QT interval. Curr Cardiol Rev. 2014;10(3):287-94.

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