肺心病并发心肺功能不全时,常合并电解质紊乱,近年来引起临床高度注意。因某些肺心病患者神智异常是由低血钠症所致,而误诊为肺性脑病以致误治,同时低血钠症又可诱发或加重肺性脑病。为了提高对本症的认识,今从以下几方面略加讨论。肺心病低血钠症的发生情况低血钠症是指血钠≤134mEg/L。134～120mEg/L为轻度低血钠症;120～110mEg/L为中度低血钠症;110mEg/L以下为重度低血钠症。天津市报告100例肺心病合并低血钠症,轻度67例,中度14例,重度8例。黑龙江省报告100例,轻度59例,中度11例,重度9例。我院内科呼吸组36例肺性脑病中25例合并低血钠症,占69.9％,重症肺性脑病20例,合并低血 Pulmonary heart disease complicated with cardiopulmonary insufficiency, often associated with electrolyte imbalance, in recent years caused a high degree of clinical attention. Because some patients with pulmonary heart disease abnormal mental abnormalities caused by hyponatremia, and misdiagnosed as pulmonary encephalopathy resulting in mistreatment, while hyponatremia can induce or aggravate pulmonary encephalopathy. In order to raise awareness of this disease, this is a little more discussion from the following aspects. Pulmonary heart disease, hyponatremia Hypoproteinemia refers to the serum sodium ≤ 134mEg / L. 134 ~ 120mEg / L for mild hyponatremia; 120 ~ 110mEg / L for moderate hyponatremia; 110mEg / L for the following severe hyponatremia. Tianjin reported 100 cases of pulmonary heart disease with hyponatremia, mild in 67 cases, moderate in 14 cases, severe in 8 cases. Heilongjiang Province reported 100 cases, mild in 59 cases, moderate in 11 cases, severe in 9 cases. 36 cases of pulmonary encephalopathy in our hospital respiratory group, 25 cases with hyponatremia, accounting for 69.9%, severe pulmonary encephalopathy in 20 cases, combined with low blood