肿瘤相关性低钠血症(TRHN)是肿瘤患者最常见的电解质紊乱之一,约14%的低钠血症与之相关。研究表明TRHN的发生发展系多因素、多环节、复杂的病理生理现象,其不仅会引起患者病情的迅速恶化,还能加重患者对化疗的胃肠道反应,使患者的生存期缩短,预后更差[1]。由于TRHN的病理生理复杂、多样化,导致其诊断更困难,而正确的诊断决定恰当的治疗,因此,及时有效地对TRHN进行病 Tumor-associated hyponatremia (TRHN) is one of the most common electrolyte disturbances in cancer patients, with about 14% associated with hyponatremia. Studies have shown that the occurrence and development of TRHN is a multi-factor, multi-link, complex pathophysiological phenomenon that not only causes rapid deterioration of the patient’s condition, but also aggravates the patient’s gastrointestinal response to chemotherapy, shortens the patient’s survival and prognosis Poor [1]. Due to the complex and diverse pathophysiology of TRHN, which makes its diagnosis more difficult and the correct diagnosis decides proper treatment, it is timely and effective to treat TRHN