Abstract: Objective To investigate maintenance hemodialysis （MHD）for patients with parathyroid (PT) ultrasound clinical significance; Methods Collection MHD patients over one year of therapy and general information related laboratory examination, according to iPTH levels divided into group A (≥ 600pg/ml) and group B (<600pg/ml) implementation PT ultrasound. Results 73 patients were enrolled, including 55 cases of group A, B group 18 cases. Ultrasound PT detection rate: A group of 90.9% (50/55), B group of 33.3% (6/18), there was a significant difference between the two groups (P <0.001), PT total volume of significant differences also exit（t=4.171, P=0.021）. Univariate analysis showed that iPTH levels were positively correlated with PT volume (γ = 0.543, P = 0.039). Conclusion iPHT levels above 600pg/ml of MHD patients is highly suggestive of the possible presence of PT hyperplasia.

Key words: Maintenance hemodialysis, Ultrasonography, Secondary hyperparathyroidism