Surgical outcome after focused parathyroidectomy: an experience from a tertiary care center in north India
Introduction: Focused parathyroidectomy is the gold standard treatment for primary hyperparathyroidism (PHPT) due to single gland disease with comparable success rate as that of conventional four gland exploration. It is also associated with fewer surgical complications. Despite these benefits, there is still controversy about the high recurrence following focused approach. Therefore the aim was to analyse our experience in terms of success rate of focused parathyroidectomy for PHPT. Methods: This was a retrospective analysis of 192 patients of PHPT between January 2017 and August 2020 who underwent focused parathyroidectomy without iOPTH analysis; and had a minimum follow up of six months. Demographic profile, biochemical (pre and postoperative), radiological, operative and histological detail of all patients was recorded. Parathyroidectomy was considered curative if patient maintained normal serum calcium and PTH levels six months after surgery. Persistent hyperparathyroidism was considered if hypercalcemia or high PTH levels persisted; or recurrent disease when patient had rising serum calcium and / or PTH levels six months after curative parathyroidectomy. Results: No patient had pain and wound related complications after parathyroidectomy. Two patients had voice change in the immediate postoperative period which recovered subsequently; no patient had documented vocal cord paralysis. Persistent disease was present in two patients; both required neck exploration. Four patients had recurrence of PHPT within 6 months of parathyroidectomy; all of them had hyperplasia on the final biopsy. The overall cure rate was 97.92%. Conclusion: Therefore, we recommend focused surgery for sporadic PHPT with acceptable recurrence rate and surgical complications.