Shad Khan - Consultant Endocrine and General Surgeon at Oxford University Hospitals:

'Normocalcaemic hyperparathyroidism (NCPHPT) is increasingly becoming accepted as a condition requiring surgical correction - much like primary hyperparathyroidism (PHPT). In this variant patients have an elevated parathyroid hormone level whilst displaying normal calcium levels in the blood. Nevertheless there is a growing body of evidence which suggests that kidney stones, osteoporosis and a multitude of symptoms found in the more conventional PHPT occur to the same extent in NCPHPT. Anecdotal evidence would suggest that a lot of benefit can be gained through surgical cure and there is growing concern about waiting until there is organ damage before offering surgery. Not many units are recognising this as yet but at Oxford we are increasingly seeing and offering surgery for NCPHPT with quality of life dramatically improving following successful surgery'