摘要目的 提高促肾上腺皮质激素(ACTH)非依赖性肾上腺皮质大结节样增生(AIMAH)的治疗水平.方法 报告了1例AIMAH患者的诊治经过.患者女性,51岁,发现库欣症状半年余,血皮质醇以及24 h尿游离皮质醇升高,血皮质醇昼夜分泌节律消失,2 mg和8 mg地塞米松抑制试验均不被抑制,心肺功能极差,血压最高至300/120 mm Hg(1 mm Hg=0.133 kPa).起始服用米托坦(60 mg/d),效果不佳,后改用酮康唑( 800 mg/d).5天后血压降至180/120 mm Hg,但心、肺功能改善仍不明显,出现端坐呼吸,氧饱和度一度跌至75％,只能尽快行右肾上腺全切术.结果 切除的肿块约10 cm×10 cm大小,称重67.5g.病理示肾上腺非色素性大结节样增生.术后未补充肾上腺皮质激素,术后第6天起继续使用酮康唑( 400 ～ 800mg/d)降皮质醇,血、尿皮质醇逐渐正常(血皮质醇8:00时18.65 μg/dl,24 h尿游离皮质醇78.75 μmol),一般情况好转后出院.随访10个月至今,实验室检查指标正常.结论 AIMAH患者拟采用个体化治疗,对于症状进展迅速,血压极高,心脏受累,低血钾,低蛋白血症者,先通过药物抑制肾上腺分泌糖皮质激素.一旦心肺功能有改善,应尽快切除一侧肾上腺.围手术期不宜补充肾上腺皮质激素.单侧肾上腺全切术依然是一种治疗高危AIMAH有效的方法.

abstractsObjective To improve the diagnosis and treatment of ACTH-independent macronodular adrenal hyperplasia(AIMAH).Methods A 51-year-old female patient with Cushing's syndrome caused by AIMAH was reported.Elevated early morning plasma cortisol levels,increased 24 h urinary free cortisol excretion,and loss of the normal circadian rhythm in cortisol secretion were presented.There was no suppression of cortisol secretion by administration of low-and high-dose overnight dexamethasone suppression test.Cardio-pulmonary function was very bad with the highest blood pressure reaching 300/120 mm Hg( 1 mm Hg=0.133 kPa).Initially,she was treated with mitotane(60 mg/d),but was not effective.After taking ketoconazole (800 mg/d)for 5 days,cardio-pulmonary function was not effectively improved with blood pressure only descending to 180/120 mm Hg.Orthopnoea appeared and Spo2fell once to 75％.The patient had to undergo right total adrenalectomy immediately.Results The mass resected was 10 cm× 10 cm in size and weighted 67.5 g.Histological examination of the removed adrenal revealed nonpigmented macronodular cortical hyperplasia.The patient continued to take ketoconazole (400-800 mg/d)from the 6th day of the operation without steroid replacement therapy in that period.With normal cortisol levels( plasma cortisol at 8:00 was 18.65 μg/dl,24 h urinary free cortisol was 78.75 μmol),she left hospital after the general condition had been improved.During the following updated 10 months follow up,the indexes of her laboratory examination were maintained normal.Conclusion Individualized therapy should be adopted for the patient with AIMAH.The medication is useful to suppress the adrenal gland cortisol production for those with progression of symptoms,very high blood pressure,hypokalemia and hypoproteinemia.Once the cardio-pulmonary function improves,the target organ should be resected as soon as possible.The supplement of cortisol is not appropriate during the perioperative period.The unilateral adrenalectomy is an effective treatment for AIMAH.