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Evaluation of lung function in patients submitted to total laryngectomy Please cite this article as: Castro MA, Dedivitis RA, Salge JM, Matos LL, Cernea CR. Evaluation of lung function in patients submitted to total laryngectomy. Braz J Otorhinolaryngol. 2019;85:623-7. ,☆☆ ☆☆ Institutions: Faculdade de Medicina de São Paulo, Universidade de São Paulo, São Paulo, SP, Brazil.

Abstract

Introduction:

The post-laryngectomy state is characterized by several alterations in lung function. A reliable estimation of lung function can be very useful in laryngectomees to prevent postoperative complications and to evaluate the results of the treatment.

Objective:

Characterize the presence of respiratory functional disorders and the functional pattern of laryngectomees through the use of an extratracheal device.

Methods:

This transversal study included 50 patients submitted to total laryngectomy at least 6 months prior to this investigation, as the treatment of choice for laryngeal cancer.

Results:

56% percent of the participants had altered breathing pattern, distributed as follows: 14 with obstructive pattern with no air trapping, 11 with obstructive pattern with air trapping and only 3 with restrictive pattern. On average, the diffusion decreased (74.3%) and airway resistance increased (121.7%) when compared to the expected average values for the Brazilian individuals.

Conclusion:

Most patients submitted to total laryngectomy present altered lung function, usually the obstructive type, frequently associated to a history of smoking.

KEYWORDS
Respiratory function tests; Spirometry; Plethysmography; Laryngectomy; Squamous cell

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