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Table 2 Frequency of ECG alterations suggestive of hyperkalemia in normokalemic versus hyperkalemic (moderate and/or severe) patients (*: p ≤ 0,05), Cardiac arrest included asytole, ventricular fibrillation, pulseless ventricular tachycradia and pulseless electric activity

From: ECG alterations suggestive of hyperkalemia in normokalemic versus hyperkalemic patients

   1 ECG alteration ≥2 ECG alterations Cardiac arrest AV junctional escape Ventricular escape Bradycardia I°degree AV-block II°degree AV-block III°degree AV-block Wide QRS Peaked T-waves
Control (n = 170) % 20% 4% 0.0% 0.0% 0.0% 6.5% 7.1% 0.0% 0.0% 8.2% 4.7%
n 34 7 0 0 0 11 12 0 0 14 8
All hyperkalemia (n = 135) % 30% 16% 5.9% 5.2% 0.7% 12.6% 8.1% 0.0% 0.7% 18.5%* 9.6%
n 41 21 8 7 1 17 11 0 1 25 13
Moderate hyperkalemia (n = 97) % 27% 9% 3.1% 5.2% 1.0% 10.3% 4.1% 0.0% 0.0% 13.4% 6.2%
n 26 9 3 5 1 10 4 0 0 13 6
Severe hyperkalemia (n = 38) % 39% 32% 13.2% 5.3% 0.0% 18.4%* 18.4%* 0.0% 2.6% 31.6%* 18.4%*
n 15 12 5 2 0 7 7 0 1 12 7