Potassium supplementation in aortic valve replacement surgery is mainly to prevent the occurrence of hypokalemia and avoid affecting the patient’s postoperative recovery.
Heart valve replacement, including aortic replacement, requires the use of diuretics in the postoperative period. Common diuretics such as furosemide, a potassium-excreting diuretic, may lead to hypokalemia, so the patient’s electrolytes need to be monitored in the postoperative period, and potassium and other electrolytes need to be supplemented appropriately.
Aortic replacement, especially using the traditional open thoracotomy, can lead to patients having more bleeding and fluid loss, and hypokalemia occurs, so potassium supplementation is needed. For patients who have hypokalemia themselves, they need to fast before and after the surgery, and they cannot eat to supplement potassium salt, so they need to add potassium salt appropriately during rehydration.
If you feel uncomfortable, you should seek medical advice and follow the doctor’s instructions.