Hypothyroidism after Hemithyroidectomy

José Luis Ortiz Bogado, Felipe Guilherme da Silva Souza and Rogério Aparecido Dedivitis

Departments of Head and Neck Surgery, Hospital Ana Costa, Santos and Irmandade da Santa Casa da Misericórdia, Santos, Brazil
Department of Head and Neck Surgery, Hospital das Clínicas, University of São Paulo School of Medicine, São Paulo, Brazil

^*Correspondance to: Rogerio Aparecido Dedivitis 

 PDF  Full Text DOI: 10.25107/2474-1647.1441

Abstract

Introduction: Thyroid lobectomy has the advantage of sparing many patients from the need of thyroxine definitive replacement therapy.
Objective: To evaluate the thyroid function after the hemithyroidectomy and the risk factors for the postoperative hypothyroidism.Methods: It is a retrospective study of 333 consecutive patients undergone thyroid lobectomy and isthmusectomy from 2007 to 2014. Thyroid hormone determinations were performed before and one month after the surgical approach and were correlated to demographic, clinical e histopathological data. The Mann-Whitney U Test and the Exact Test of Fischer were employed.Results: The mass of the remaining lobe presented some statistical trend (p=0.0949) as risk factor for the hypothyroidism. No statistical significance was observed regarding the other analyzed aspects.Conclusion: Subclinical hypothyroidism was detected in 26.1%, whereas clinical hypothyroidism was detected in 3% of the patients in the postoperative period. The mass of the preserved lobe presented some statistical trend (p=0.0949) as risk factor for the hypothyroidism.

Keywords

Thyroidectomy; Hypothyroidism; Thyroid gland disorders; Thyrotropin; Thyroiditis; Thyroid

Cite the article

Bogado JLO, da Silva Souza FG, Dedivitis RA. Hypothyroidism after Hemithyroidectomy. Clin Surg. 2017; 2: 1441.