Persistent elevated serum parathyroid hormone levels with normocalcaemia after parathyroidectomy: Secondary hyperparathyroidism or pseudo- hyperparathyroidism?

IF 1.3 4区医学 Q3 SURGERY

Cirugia Espanola Pub Date : 2025-02-01 DOI:10.1016/j.ciresp.2024.10.008

Olivia Benet-Muñoz, María Asunción Acosta-Mérida, José Antonio Casimiro-Pérez, María Mar Callejón-Cara, Laura Jiménez-Díaz, Joaquín Marchena-Gómez

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引用次数: 0

Abstract

Introduction

This study aimed to determine the time to normalisation of postoperative parathyroid hormone levels after successful parathyroid surgery and to analyse the pathophysiology of postoperative normocalcaemic hyperparathyroidism.

Method

An observational retrospective study was conducted on a cohort of 186 patients who had undergone parathyroidectomy for primary hyperparathyroidism over a 5-year period. Demographic characteristics, surgical and histopathological data, bone densitometry (pre-and postoperative pharmacological treatment), creatinine plasma levels, and pre-and postoperative parathyroid hormone, calcium and vitamin D levels were recorded as predictive variables. The time to normalisation of the postoperative parathyroid hormone levels was recorded as the output variable. A univariate analysis was performed to investigate the factors related to the time to normalisation of parathyroid hormone levels.

Results

The final study sample was comprised of 176 patients, 46 of which (26.1%) had elevated postoperative parathyroid hormone levels and normocalcaemia. The median time to normalisation of the postoperative parathyroid hormone levels was 6 months. The cumulative probability of having normal parathyroid hormone levels 30 months after surgery was 89%. The time to normalisation was associated only with preoperative parathyroid hormone levels (P = .007; HR: 0.998). Vitamin D and creatinine levels were not associated with time to normalisation of parathyroid hormone levels (P = .744).

Conclusions

Persistently elevated postoperative parathyroid hormone levels with normocalcaemia may occur in one-quarter of patients after parathyroidectomy. Parathyroid hormone levels normalise in up to 90% of cases by 30 months. A high preoperative parathyroid hormone level is predictive of postoperative normocalcaemic hyperparathyroidism, and vitamin D deficiency does not seem to influence the pathogenic mechanism.

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来源期刊

Cirugia Espanola SURGERY-

CiteScore

1.20

自引率

21.10%

发文量

173

审稿时长

53 days

期刊介绍： Cirugía Española, an official body of the Asociación Española de Cirujanos (Spanish Association of Surgeons), will consider original articles, reviews, editorials, special articles, scientific letters, letters to the editor, and medical images for publication; all of these will be submitted to an anonymous external peer review process. There is also the possibility of accepting book reviews of recent publications related to General and Digestive Surgery.