Transient Left Bundle Branch Block due to Severe Hyperkalemia.

Autor:	Kumar K; Department of Medicine, Bronx Lebanon Hospital Center, Bronx, NY 10457, USA., Biyyam M; Department of Medicine, Bronx Lebanon Hospital Center, Bronx, NY 10457, USA., Singh A; Department of Medicine, Bronx Lebanon Hospital Center, Bronx, NY 10457, USA., Bajantri B; Department of Medicine, Bronx Lebanon Hospital Center, Bronx, NY 10457, USA., Tariq H; Department of Medicine, Bronx Lebanon Hospital Center, Bronx, NY 10457, USA., Nayudu SK; Department of Medicine, Bronx Lebanon Hospital Center, Bronx, NY 10457, USA., Chilimuri S; Department of Medicine, Bronx Lebanon Hospital Center, Bronx, NY 10457, USA.
Jazyk:	angličtina
Zdroj:	Cardiology research [Cardiol Res] 2017 Apr; Vol. 8 (2), pp. 77-80. Date of Electronic Publication: 2017 May 03.
DOI:	10.14740/cr538w
Abstrakt:	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.
Databáze:	MEDLINE
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