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Kidney stone events following parathyroidectomy vs. non-operative management for primary hyperparathyroidism.
Kidney stone events following parathyroidectomy vs. non-operative management for primary hyperparathyroidism. The Journal of clinical endocrinology and metabolism Seib, C. D., Ganesan, C., Arnow, K. D., Pao, A. C., Leppert, J. T., Barreto, N. B., Kebebew, E., Tamura, M. K. 2022Abstract
CONTEXT: Primary hyperparathyroidism (PHPT) is associated with an increased risk of kidney stones. Few studies account for PHPT severity or stone risk when comparing stone events after parathyroidectomy vs. non-operative management.OBJECTIVE: Compare the incidence of kidney stone events in PHPT patients treated with parathyroidectomy vs. non-operative management.DESIGN: Longitudinal cohort study with propensity score inverse probability weighting and multivariable Cox proportional hazards regression.SETTING: Veterans Health Administration integrated health care system.PATIENTS: 44,978 patients with >2 years follow-up after PHPT diagnosis (2000-2018). 5,244 patients (11.7%) were treated with parathyroidectomy.MAIN OUTCOMES MEASURE: Clinically significant kidney stone event.RESULTS: The cohort had a mean age of 66.0 years, was 87.8% male, 66.4% White. Patients treated with parathyroidectomy had higher mean serum calcium (11.2 vs. 10.8mg/dL) and were more likely to have a history of kidney stone events. Among patients with baseline history of kidney stones, the unadjusted incidence of =1 kidney stone event was 30.5% in patients managed with parathyroidectomy (mean follow-up 5.6 years) compared to 18.0% in those managed non-operatively (mean follow-up 5.0 years). Patients treated with parathyroidectomy had a higher adjusted hazard of recurrent kidney stone events (hazard ratio[HR] 1.98, 95%CI 1.56-2.51); however, this association declined over time (parathyroidectomy*time HR 0.80, 95%CI 0.73-0.87).CONCLUSION: In this predominantly male cohort with PHPT, patients treated with parathyroidectomy continued to be at higher risk of kidney stone events in the immediate years after treatment than patients managed non-operatively, although the adjusted risk of stone events declined with time, suggesting a benefit to surgical treatment.
View details for DOI 10.1210/clinem/dgac193
View details for PubMedID 35363858