抗利尿激素分泌紊乱综合征(SIADH)是一由抗利尿激素(ADH)过度释放而引起的水、电解质紊乱症侯群。其特点为在血 BUN、肌酐和血糖正常的情况下同时有低钠血症和血清渗透压降低且伴尿渗透压升高(一般高于血清)如不及时纠正,可引起嗜睡、厌食、头痛、惊厥、昏迷和致命的心律失常。现己认为 SIADH可发生于双侧根治性颈清扫术后,发病机理可能是手术使头部静脉回流受阻,导致脑静脉压 The syndrome of antidiuretic hormone secretion disorder (SIADH) is a group of water and electrolyte disorders caused by excessive release of antidiuretic hormone (ADH). It is characterized by simultaneous hyponatremia and reduced serum osmotic pressure in patients with normal blood BUN, creatinine, and blood glucose levels, and elevated urine osmotic pressure (usually higher than serum). If not corrected promptly, it may cause drowsiness, anorexia, and headache. , convulsions, coma, and deadly arrhythmias. It is thought that SIADH can occur after bilateral radical neck dissection. The pathogenesis may be surgical venous obstruction of the head, resulting in cerebral venous pressure