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Transient Left Bundle Branch Block due to Severe Hyperkalemia

Hyperkalemia is a potentially life-threatening electrolyte imbalance that can lead to sudden death from cardiac arrhythmias and asystole. We present a case of transient left bundle branch block pattern on an electrocardiogram (ECG) secondary to hyperkalemia in a patient with history of end-stage ren...

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Detalles Bibliográficos
Autores principales: Kumar, Kishore, Biyyam, Madhavi, Singh, Amandeep, Bajantri, Bharat, Tariq, Hassan, Nayudu, Suresh Kumar, Chilimuri, Sridhar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elmer Press 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5421491/
https://www.ncbi.nlm.nih.gov/pubmed/28515827
http://dx.doi.org/10.14740/cr538w
Descripción
Sumario:Hyperkalemia is a potentially life-threatening electrolyte imbalance that can lead to sudden death from cardiac arrhythmias and asystole. We present a case of transient left bundle branch block pattern on an electrocardiogram (ECG) secondary to hyperkalemia in a patient with history of end-stage renal disease. A 52-year-old man presented to the emergency room (ER) with chief complaints of weakness and lethargy after missing his regularly scheduled session of hemodialysis. A 12-lead ECG in the ER showed sinus tachycardia at 118 beats/min, wide QRS complexes, peaked T waves and left bundle branch block-like pattern. The initial basic metabolic panel revealed a serum potassium level of 8.8 mEq/L. Subsequently, the patient underwent emergent hemodialysis. Serum chemistry after hemodialysis showed improvement in serum potassium to 4.3 mEq/L. Repeat ECG performed after correcting potassium showed dissolution of left bundle branch block finding.