1. Test serum calcium, phosphorus and ALP by dialysis every week for 4 weeks after one week of surgery; 2. Test serum calcium, phosphorus and ALP by dialysis every two weeks for three months after one month of surgery; 3. Test iPTH, Hb and Alb every month after surgery and reassess dry weight every two weeks; 4. Test iPTH every three months and test serum calcium, phosphorus and Hb every month after one year of surgery; 5. Adjust according to serum calcium and phosphorus Calcium preparations and active vitamin D (osteotriol or alfadisil softgels), supplemented with phosphorus preparations (e.g. fructose diphosphate) if necessary. Note: 1. If serum calcium is greater than 1.8 mmol/L, supplement with 1 to 2 g of elemental calcium (1500-2250 mg of calcium carbonate) daily, taken orally between meals; 2. If serum calcium is less than 1.8 mmol/L or convulsions occur, immediately give 90 mg of elemental calcium (10 ml of 10% calcium gluconate) by intravenous infusion and maintain it by intravenous drip at a rate of 90-180 mg/h Keep serum calcium normal. 3. If serum phosphorus decreases, take a high-calcium-phosphorus diet and skim milk powder, fructose diphosphate; 4. Supplement with osteotriol or alfadisil softgels 0.5-2 μg/d, up to 6 μg/d, depending on the level of serum calcium and ALP.