The purpose of this study is to determine preoperative predictors of the severity of the hypocalcaemia following parathyroidectomy. The case records of 70 patients who underwent parathyroidectomy for primary hyperparathyroidism from 2000 to 2013 was retrospectively studied. Their symptoms at presentation, biochemical parameters serum calcium, parathyroid hormone, alkaline phosphatase and parathyroid size on ultrasound were compared with their serial post-operative serum calcium levels at 24, 48, 72 and 96 h.

For the purpose of analysis, patients were divided into three groups. Group 1—asymptomatic, biochemically normal (serum calcium always C8.5 mgs%); Group 2—asymptomatic, biochemically below normal (at least one reading\8.5, but none \8.0); Group 3—symptomatic (any one reading\8.0). No correlation was found between the severity of the presenting symptoms, pre-operative serum calcium…