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Revista del Cuerpo Médico Hospital Nacional Almanzor Aguinaga Asenjo
Print version ISSN 2225-5109On-line version ISSN 2227-4731
Abstract
MEREGILDO-RODRIGUEZ, Edinson Dante; ASMAT-RUBIO, Martha Genara and VASQUEZ-TIRADO, Gustavo Adolfo. Hypokalemia and sudden cardiac death in people without structural heart disease: Case presentation and systematic review. Rev. Cuerpo Med. HNAAA [online]. 2022, vol.15, n.2, pp.288-294. Epub June 10, 2022. ISSN 2225-5109. http://dx.doi.org/10.35434/rcmhnaaa.2022.152.1294.
Introduction:
The aim of this study was to synthesize the evidence on the causes of sudden cardiac death (SCD) associated with hypokalemia in individuals ≥15 to <65 years of age without structural heart disease.
Case report:
We reported a case and collected SCD cases following the PECO strategy. We conducted a bibliographic search of the literature published up to November 30, 2021. We included 25 cases. The mean age was 33.8 ± 2.4 years. Of the total cases, 60% were male and 60% corresponded to acquired etiologies. Thyrotoxicosis was the etiology of 8% of cases. The QTc interval was prolonged in 90% of the cases in which it could be recorded. Sixty percent of cases occurred out of hospital. Only 24% of episodes resulted in death.
Conclusions;
Thyrotoxicosis is a rare cause of hypokalemic sudden cardiac arrest (SCA). Hypokalemic SCA seems to be associated with better clinical results compared to SCA associated with hyperkalemia or normokalemia.
Keywords : potassium; hypokalemia; thyrotoxicosis; hyperthyroidism; sudden cardiac death.
