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Case Reports
. 2022 May 21;8(10):719-723.
doi: 10.1016/j.hrcr.2022.05.013. eCollection 2022 Oct.

Cardiac arrhythmias in primary hypokalemic periodic paralysis: Case report and literature review

Ezequiel Sagray  1 , Philip L Wackel  1 , Bryan C Cannon  1
Affiliations
Case Reports

Cardiac arrhythmias in primary hypokalemic periodic paralysis: Case report and literature review

Ezequiel Sagray et al. HeartRhythm Case Rep. .
No abstract available

Keywords: Cardiac arrhythmias; Channelopathies; Pediatric electrophysiology; Primary hypokalemic periodic paralysis; Ventricular arrhythmias.

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Figures

Figure 1
Figure 1
A: Electrocardiogram (ECG) obtained during hypokalemia showing normal sinus rhythm and QRS axis, ST-segment depression predominantly in inferolateral leads, U waves, and prolonged QTc interval (574 ms). B: Normal ECG during normokalemia (QTc 410 ms).
Figure 2
Figure 2
A: Electrocardiogram (ECG) obtained at peak exercise (heart rate = 184 beats/min) showing ventricular couplet and 3-beat run of ventricular tachycardia (VT) at 300 beats/min (arrow). B: Implantable loop recorder transmission showing 6-beat run of monomorphic VT at 140–145 beats/min, over normal sinus rhythm at approximately 70 beats/min.
See this image and copyright information in PMC

References

    1. Statland J.M., Fontaine B., Hanna M.G., et al. Review of the diagnosis and treatment of periodic paralysis. Muscle Nerve. 2018;57:522–530. - PMC - PubMed
    1. Fialho D., Griggs R.C., Matthews E. Periodic paralysis. Handb Clin Neurol. 2018;148:505–520. - PubMed
    1. Roggen A., Pavlovic M., Pfammatter J.P. Frequency of spontaneous ventricular tachycardia in a pediatric population. Am J Cardiol. 2008;101:852–854. - PubMed
    1. Driss T., Vandewalle H. The measurement of maximal (anaerobic) power output on a cycle ergometer: a critical review. Biomed Res Int. 2013;2013 - PMC - PubMed
    1. Tse G., Li K.H.C., Cheung C.K.Y., et al. Arrhythmogenic mechanisms in hypokalaemia: insights from pre-clinical models. Front Cardiovasc Med. 2021;8:1–11. - PMC - PubMed

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