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Revista Colombiana de Cirugía
versión impresa ISSN 2011-7582versión On-line ISSN 2619-6107
Resumen
GOMEZ, Carlos Andrés et al. Hypocalcemia after total thyroidectomy: Dose analysis for routine prophylactic supplementation. rev. colomb. cir. [online]. 2022, vol.37, n.2, pp.226-236. Epub 30-Abr-2022. ISSN 2011-7582. https://doi.org/10.30944/20117582.1221.
Introduction.
Hypocalcemia is the most frequent complication of thyroidectomy. Calcium/calcitriol prophylaxis is a cost-effective, simple and expeditious alternative to reduce this situation, without altering residual parathyroid function. It is not clear whether there is superiority of one dose over another, so the objective of this study was to evaluate the behavior between prophylaxis doses for hypocalcemia.
Methods.
Retrospective cohort study of adults operated in a fourth level hospital, between February 2017 and December 2020. The rate of symptoms, biochemical hypocalcemia and hypercalcemia was calculated in the post-surgical control during the following two weeks. Bivariate and multivariate analyses were performed between calcium/calcitriol dose, other associated factors, and the mentioned outcomes.
Results.
Out of the 967 patients included, 10% presented symptoms. There were no significant differences in postoperative control serum calcium between the groups with different doses of calcium. The dose of calcium carbonate > 3600 mg/day and calcium in the first 24 hours of surgery were associated with the presence of symptoms. The dose of calcitriol <1 mcg/day and goiter increased the risk of biochemical hypocalcemia, while the dose of 1.5 mcg / day decreased it. No variable evaluated was associated with biochemical hypercalcemia.
Conclusion.
We can establish that high doses of calcium are not less associated with biochemical hypocalcemia, which is in favor of intermediate doses (i.e. 3600mg/day). In a similar way, the calcitriol dose of 1.5mcg/day decreases the risk of this outcome. The identification of variables that increase or decrease the risk of this complication (goiter or the 24h serum calcium in this study) can decide settings in the rutinary prophylactic dose of calcium/calcitriol.
Palabras clave : thyroidectomy; hypocalcemia; hypercalcemia; calcium carbonate; calcitriol; postoperative complications.