OBJECTIVETo investigate the clinical features of adrenocortical adenoma's diagnosis and treatment in patients aged 60 years or above.

METHODSA retrospective study was performed with a total of 249 patients aged 60 years or above who suffered from adrenocortical adenoma and treated in Peking Union Medical College Hospital from January 2004 to January 2014.The clinical features, treatments and prognosis of the 249 patients aged 60 years or above were compared with another 249 patients which were randomly selected during the same period aged from 30 to 50 years.t-test or χ(2) test was used to analyze the data between the two groups.

RESULTSEndocrine examinations were performed in all 249 patients aged 60 years or above.There were 144 patients diagnosed as non-functional adrenocortical adenoma, 94 cases as aldosterone-producing adenoma and 11 cases as Cushing adenoma.For the patients aged 60 years or above, the rate of cardio-cerebral vascular incident in non-functional adrenocortical adenoma group was 26.4%(38/144), which was significantly lower than that of the aldosterone-producing adenoma and Cushing adenoma group(54.3%, 57/105)(χ(2)=20.027, P=0.000). There were 91.5%(65/71) of the patients aged 60 years or above who got a relief in low blood potassium symptoms after the operation.Forty-nine point one percent(53/108) of the non-functional adrenocortical adenoma patients aged 60 years or above had a better control of their blood pressure level, while functional adrenocortical adenoma group were 64.0%(48/75) which indicated that the functional adrenocortical adenoma patients have a better control of their blood pressure then the non-functional adrenocortical adenoma patients after the operation(χ(2)=3.987, P=0.046). There were 37.1% of the patients aged 60 years or above whose fasting blood-glucose was higher than 7.1 mmol/L, while the patients aged from 30 to 50 years was 14.1%(χ(2)=22.02, P=0.000). The differences in plasma aldosterone and blood potassium between the patients aged 60 years or above and the patients aged from 30 to 50 years had statistical significance(t=10.48, -2.58; P=0.00, 0.01).

CONCLUSIONSMost of the adrenocortical adenoma in patients aged 60 years or above is non-functional adrenocortical adenoma.Among who, patients with aldosterone-producing adenoma tend to have lower plasma aldosterone concentration and higher blood potassium level then the patients aged from 30 to 50 years.The patients aged 60 years or above with functional adrenocortical adenoma are tend to have severe cardio-cerebral vascular incidence.A few of non-functional adrenocortical adenoma patients who combine with hypertension can benefit for the operation.