White R J
Br Med J. 1970 Jul 18;3(5715):141-2. doi: 10.1136/bmj.3.5715.141.
A study of the effect of additional oral potassium on the low body potassium of seven patients with severe valvular heart disease showed that the potassium supplements were retained. After one month's treatment the exchangeable potassium was significantly increased, but the predicted value was not reached in any of the patients. There was no significant change in plasma potassium. These results suggest that it is of benefit to increase the dose of oral potassium for at least one month preoperatively in patients undergoing cardiac surgery.
一项关于额外口服钾对7例重症瓣膜性心脏病患者体内低钾状况影响的研究表明，补充的钾被保留了下来。经过一个月的治疗，可交换钾显著增加，但没有任何一位患者达到预测值。血浆钾没有显著变化。这些结果表明，对于接受心脏手术的患者，术前至少一个月增加口服钾剂量是有益的。
