Sinusitis in Children with Bronchiectasis: The Influence of Allergy on Its Development

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Abstract
It is well known that sinusitis occurs very frequently in children with bronchiectasis. As a matter of fact, chronic sinusitis has been regarded by many authors to be a principal cause of persistence of bronchial suppuration. On the other hand, some authors1 assume that in the presence of bronchiectasis, constant droplet infection of the nasopharynx and of nasal passages may occur. Ormerod2 showed the presence of iodized poppy-seed oil (Lipiodol) in the nasal passages and in the sinuses in cases x-rayed soon after the instillation of iodized poppy-seed oil for bronchography. Undoubtedly, extension of the infection from the upper to the lower respiratory passages or vice versa (ascending or descending infection) may proceed in either direction, depending on the phase of the disease. We believe, however, that in children with established purulent bronchiectasis the mechanism of an ascending infection probably predominates. In the presence of a bronchial "septic

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