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Vol. 44. Issue 9.
Pages 504-506 (January 2008)
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Vol. 44. Issue 9.
Pages 504-506 (January 2008)
Case Reports
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Spirometric Evaluation of Respiratory Involvement in Asymptomatic Multinodular Goiter With an Intrathoracic Component
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Antonio Ríos
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ARZRIOS@teleline.es

Correspondence: Dr A. Ríos. Avda. de la Libertad, 208 30007 Casillas, Murcia, Spain
, José Manuel Rodríguez, Pedro José Galindo, Pedro Antonio Cascales, María Balsalobre, Pascual Parrilla
Servicio de Cirugía General y del Aparato Digestivo I, Hospital Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
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Respiratory 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.

Key words:
Multinodular goiter
Asymptomatic
Surgery
Intrathoracic goiter
Spirometry

La obstrucción de la vía aérea se infravalora en el bocio intratorácico asintomático. Nuestro objetivo ha sido valorar mediante espirometría la afectación de la vía aérea superior y la repercusión en la función respiratoria de pacientes asintomáticos con bocio multinodular intratorácico. Para ello se seleccionó prospectivamente a 21 pacientes con bocio intratorácico asintomático a quienes se había practicado una tiroidectomía. Se realizó la espirometría en decúbito supino y en bipedestación antes y a los 3 meses de la cirugía. El estudio preoperatorio mostró en decúbito una afectación obstructiva leve en 4 casos (20%), en 2 de los cuales persistía en bipedestación (10%). Tras la cirugía se normalizó la alteración en los 4 casos.

En conclusión, la espirometría en el bocio intratorácico asintomático muestra una afectación obstructiva leve de la función respiratoria en el 10–20% de los casos, en función de la postura. La cirugía se acompaña de la normalización de los parámetros alterados y de la mejoría del resto. Estos datos apoyan la necesidad de indicar la cirugía lo antes posible.

Palabras clave:
Bocio multinodular
Asintomático
Cirugía
Bocio intratorácico
Espirometría
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Copyright © 2008. Sociedad Española de Neumología y Cirugía Torácica (SEPAR)
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