• Parul Bali, Nigel D Toussaint, Mark K Tiong, and Irene Ruderman.
• Department of Nephrology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia.
• Intern Med J. 2022 Dec 1; 52 (12): 210721152107-2115.

BackgroundSurgical parathyroidectomy may be required for severe and refractory secondary hyperparathyroidism (SHPT) in patients with chronic kidney disease (CKD). Parathyroidectomy is associated with long-term survival benefit despite an increase in short-term morbidity and mortality. Global variation in practice exists, with limited Australian data on outcomes following parathyroidectomy.AimTo evaluate clinical outcomes of patients with chronic kidney disease undergoing surgical parathyroidectomy for secondary hyperparathyroidism.MethodsWe conducted a retrospective study of patients who underwent parathyroidectomy for SHPT between January 2010 and December 2019 at a single tertiary referral centre in Melbourne, Australia. Biochemical markers and medications were assessed 12 months pre- and post-surgery. Clinical outcomes, including hospital readmission, cardiovascular events and mortality were assessed following surgery.ResultsDuring the 10-year study period, 129 patients underwent parathyroidectomy for SHPT (mean age 50.7 ± 15 years; 109 (85%) on dialysis). Significant immediate post-operative complications were seen in eight (6%) patients, requiring admission to the intensive care unit (n = 6) or return to theatre (n = 2). Within the first 6 months, 24 (19%) patients required hospital readmission. Within 12 months post-parathyroidectomy, 100 (78%) and 103 (80%) patients experienced at least one episode of hypercalcaemia (corrected calcium >2.6 mmol/L) or hypocalcaemia (corrected calcium <2.1 mmol/L) respectively. Over a 12-month period, there were six (5%) deaths and eight (6%) patients experienced a major cardiovascular event.ConclusionSignificant fluctuations in serum calcium levels are common post-parathyroidectomy; however, long-term morbidity and mortality in our cohort were lower than previously reported, highlighting that parathyroidectomy in a carefully selected cohort is safe for severe SHPT refractory to medical treatment.© 2021 Royal Australasian College of Physicians.

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