Delayed Hypoparathyroidism following Thyroidectomy, a Diagnostic Conundrum: A Report of Three Cases from Sri Lanka

Table 1

Summary of investigations of case 1.

Investigation	Immediately after surgery	12 years after op	24 years after op	30 years after op	Normal range
Serum-ionized calcium	1.13 mmol/l	1.26 mmol/l	1.2 mmol/l	1.1 mmo/l	1.12–1.32 mmo/l
Serum phosphate	4.3 mg/dl	3.5 mg/dl	3.6 mg/dl	4.8 mg/dl	2.7–4.5 mg/dl
Serum potassium				4.6 mmo/l	3.5–5.1 mmol/l
Serum sodium				142 mmo/l	136–146 mmol/l
Serum magnesium				0.9 mmol/l	0.85–1.1 mmol/l
Intact PTH				12.2 pg/ml	10–69 pg/ml
S. 25(OH) vitamin D level				32 ng/ml	30–100 ng/ml
Thyroid stimulation hormone (TSH)	25 mIU/l	0.003 mIU/l	0.02 mIU/l	0.004 mIU/l	0.4–4 mIU/l
Fasting blood sugar (FBS)				88 mg/dl