title: [Hemithyroidectomy in a unilateral goiter: a valid therapeutic option. Review of the contralateral hemithyroid ten years after treatment].
abstract: BACKGROUND
  Nodular goiter (NG) is frequent among the general population and is considered a diffuse disease. Although NGs are rarely unilateral, they pose a dilemma in terms of the extent of the thyroidectomy. The aim of the present study was to evaluate the remaining thyroid in patients with NG compared with those with follicular adenoma who underwent hemithyroidectomy.
  
  
  METHODS
  Patients who underwent surgery for unilateral NG with over 10 years of postoperative follow-up and normal findings on ultrasonography of the contralateral thyroid lobe were selected to form the study group (SG). Patients with follicular adenoma (with normal contralateral ultrasonography) who underwent hemithyroidectomy during the same period were selected to form the control group (CG). The selected patients underwent clinical, laboratory and ultrasound examinations. Both groups were compared statistically. No significant differences were found in age, gender, anesthetic risk, side, postoperative complications, length of hospital stay, or postoperative outcome.
  
  
  RESULTS
  Less than 10% of the patients reported symptoms, and all symptoms were of little significance. Ultrasonographic nodules were found in the remaining thyroid lobe in 70% of patients in the SG and in 60% of those in the CG, with no statistically significant differences. The mean size of the largest nodule was 13.58 +/- 8.01 in the SG and 9.15 +/- 5.93 in the GC (p = 0.048). No differences were found in the anterior-posterior, transverse or longitudinal diameters of the remaining lobe. None of the patients underwent reintervention for nodular disease.
  
  
  CONCLUSIONS
  After hemithyroidectomy, both groups of patients developed nodules in the remaining thyroid lobe, with no statistically significant differences. Hemithyroidectomy due to unilateral NG involves less risk to the patient and therefore we consider it to be a valid option. Long-term ultrasonographic follow-up seems advisable.
authors.affiliation: Servicio de Cirugía General y del Aparato Digestivo, Hospital Universitario de Valme, Sevilla, España. jmsanchezbla@inicia.es
authors.forename: Manuel J
authors.initials: MJ
authors.lastname: Lozano-Gómez
authors.forename: José Miguel
authors.initials: JM
authors.lastname: Sánchez-Blanco
authors.forename: María
authors.initials: M
authors.lastname: Vázquez-Morón
authors.forename: Pablo
authors.initials: P
authors.lastname: Parra-Membrives
authors.forename: Cristina
authors.initials: C
authors.lastname: Torres-Arcos
authors.forename: Rosario
authors.initials: R
authors.lastname: Jurado-Jiménez
authors.forename: Diego
authors.initials: D
authors.lastname: Gómez-Rubio
authors.forename: Gumersindo
authors.initials: G
authors.lastname: Recio-Moyano
mesh_terms: D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006044:Goiter, Nodular / Q000601:surgery*; D006801:Humans; D008297:Male; D012189:Retrospective Studies; D013961:Thyroid Gland / Q000473:pathology* / Q000601:surgery; D013965:Thyroidectomy / Q000379:methods*; D013997:Time Factors