Year : 2018  |  Volume : 21  |  Issue : 3  |  Page : 311--312

Refractory hypokalemia while weaning off bypass

Rashmi Soori1, Aanchal Dixit2, Prabhat Tewari2 
1 Department of Anesthesiology, K.S. Hegde Medical Academy, Mangalore, Karnataka, India
2 Department of Anesthesiology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India

Correspondence Address:
Rashmi Soori
C-001, KSHEMA Staff Quarters, Deralakatte, Mangalore - 575 018, Karnataka

Hypokalemia is defined as serum potassium level less than 3.5 mEq/L. When the serum level of potassium is less than 3 mEq/L, intravenous potassium supplementation is warranted. A 23 yr old adult female with complaints of dyspnoea (NYHA II) since 6 yrs, dyspnoea (NYHA III) and paroxysmal nocturnal dyspnoea on and off since 2 months, diagnosed with severe mitral stenosis, was posted for mitral valve replacement. After the release of ACC, ECG revealed sine wave pattern, Transesophageal echocardiographic examination revealed global hypokinesia and ABG showed potassium of 2.3 mEq/L. Hypokalemia in cardiac patients can occur due to the effect of poor oral intake, increased renal loss by the secondary hyperaldosteronism in congestive heart failure, loss due to use of digoxin and diuretics like thiazide diuretics, loop diuretics etc. Hypokalemia should be avoided while weaning off cardiopulmonary support as it can lead to atrial and ventricular arrhythmias. Potassium ion is very important for the normal contractility of the heart. Hypokalemia if refractory to intravenous potassium supplementation, concomitant magnesium deficiency should be suspected and treated.

How to cite this article:
Soori R, Dixit A, Tewari P. Refractory hypokalemia while weaning off bypass.Ann Card Anaesth 2018;21:311-312

How to cite this URL:
Soori R, Dixit A, Tewari P. Refractory hypokalemia while weaning off bypass. Ann Card Anaesth [serial online] 2018 [cited 2022 Jan 19 ];21:311-312
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