Abstract
The present study investigates the incidence of perioperative hyperkalemia and the influence factors of serum potassium levels during and after parathyroidectomy (PTX) in hemodialysis patients with renal hyperparathyroidism (rHPT). A total of 204 hemodialysis patients with refractory rHPT undergoing successful total parathyroidectomy with autotransplantation (tPTX + AT) were analyzed retrospectively. Hyperkalemia was defined as serum potassium levels ≥ 5.5mmol/L. The preoperative baseline level of serum potassium (K base+ ) was defined as a mean of the three preoperative prehemodialysis serum potassium levels. The higher levels of serum potassium during and immediately after surgery were recorded as K d0+ and the peak prehemodialysis serum potassium levels 3days after surgery as K d3+ . 136/204 (66.7%) patients suffered from hyperkalemia during or immediately after surgery and 65/204 (31.9%) patients were affected with prehemodialysis hyperkalemia 3days after surgery. K base+ was the only influencing factor for K d0+ . Serum K base+ , preoperative serum alkaline phosphatase, and total calcium supplement dosage during intravenous calcium supplement were the influencing factors for K d3+ . In the case of PTX, the serum potassium levels of patients with higher serum K base+ and severe postoperative hypocalcemia need to be monitored with extended attention perioperatively.
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