期刊
INTERNATIONAL JOURNAL OF CARDIOLOGY
卷 105, 期 2, 页码 224-226出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.ijcard.2004.11.028
关键词
hyperkalemia; potassium; pacemaker failure; electrolyte imbalance
Hyperkalemia is a life threatening metabolic condition. The common risk factors for hyperkalemia include renal insufficiency, use of angiotensin converting enzyme inhibitors, potassium supplementation and excessive consumption of potassium containing diet. A mild to moderate increase in serum potassium causes an increase in myocardial excitability, but further increase leads to impaired myocardial responsiveness, including that to pacing stimulation. Hyperkalemia has been reported to cause failure of atrial capture due to pacemaker exit block. We report a case where hyperkalemia resulted in failure of both the atrial and the ventricular pacemaker capture. (c) 2005 Elsevier Ireland Ltd. All rights reserved.
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