Objective To analysis the parameters of left ventricular hypertrophy(LVH) in patients with primary aldosteronism(PA).Methods Two hundred fifty patients were diagnosed as primary aldosteronsim in this study.One hundred fouty two PA patients undergone the adrenal venous sampling(AVS).Adenomas) APA) were diagnosed in 68 patients and idiopathic hyperaldosteronism(IHA) in 74 patients.During the same period, clinical characteristics and cardiovascular events of this group were compared with those of 246 patients with essential hypertension(EHT) randomly matched for age,gender,and systolic and diastolic blood pressure.Echocardiographic examinations and biochemical and hormonal assays were conducted in all subjects.Results 1) Left ventricular end-diastolic dimension(LVEDd) was increased in PA patients compared with values in EHT patients(PA;49.6?4.3 vs EHT:48.3?4.2 mm,P0.05);however,in grade 2 and 3 hypertension,the LVMI in patients with PA was increased compared with values in patients with EHT(P