• Antonio Ríos, José Manuel Rodríguez, Pedro José Galindo, Pedro Antonio Cascales, María Balsalobre, and Pascual Parrilla.
• Servicio de Cirugía General y del Aparato Digestivo I, Hospital Universitario Virgen de la Arrixaca, Murcia, España. ARZRIOS@teleline.es
• Arch. Bronconeumol. 2008 Sep 1; 44 (9): 504-6.

AbstractRespiratory tract obstruction is underestimated in asymptomatic intrathoracic goiter. Our aim was to evaluate the involvement of the upper airway of asymptomatic patients with intrathoracic multinodular goiter, assessing the effect on respiratory function by means of spirometry. We selected 21 patients with asymptomatic intrathoracic goiter on whom a thyroidectomy had been performed. Spirometry was done in supine decubitus and in standing position before and 3 months after surgery. The preoperative study in decubitus showed mild obstruction in 4 cases (20%). In 2 of these cases this condition was also present in standing position (10%). Spirometry became normal after surgery in the 4 patients with obstruction. To conclude, spirometry in asymptomatic intrathoracic goiter shows mild obstruction of respiratory function in 10% to 20% of cases, depending on position. Surgery was associated with normalization of the abnormal parameters and an improvement in the remaining parameters. These data support the need to schedule surgery as soon as possible.

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