[The influence of an isotonic solution containing benzalkonium chloride and a hypertonic seawater solution on the function of ciliary epithelium from the nasal cavity in vitro].

The objective of the present study was to evaluate the influence of an isotonic saline solution containing benzalconium chloride and of a hypertonic seawater solution on the function of ciliary epithelium in the nasal cavity in vitro. To this effect, we investigated the cytological material obtained from 35 children presenting with adenoid tissue hypertrophy. The tissue samples were taken from the nasal cavity by the standard method.

[Hoarseness patterns in children].

The objective of the present work was to study the structure of voice disorders in children depending on the methods chosen to diagnose dysphonia. Medical histories of 1,451 children at the age varying from 2 months to 16 years were analysed. All of them were patients hospitalized for the first time between 1997 and 2007 to treat hoarseness caused by vocal cord nodules, functional or mutational dysphonia, chronic laryngitis, vocal cord paresis/palsy, recurring respiratory papillomatosis, vocal cord cystitis, and cicatrical laryngeal stenosis.

[Recurrent respiratory papillomatosis: update review].

This paper updates information on epidemiology, etiology, clinical features, surgical and anti-relapse treatment of recurrent respiratory papillomatosis in children.

[Infection of the upper respiratory tract with human papilloma virus in children without clinical signs of respiratory papillomatosis].

The objective of this study was to evaluate the frequency of infection of pharyngeal mucosa, palatal and pharyngeal tonsils with types 6, 11, 16, 18, 31, and 33 human papilloma virus (HPV). A total of 57 children (30 boys and 27 girls) aged from 2 yr 10 mo to 14 yr 5 mo (mean 82+/-28.9 months) were examined.

[Gastroesophageal reflux disease and pharyngolaryngeal reflux in children with chronic laryngeal pathology].

A prospective non-randomized trial was made to evaluate incidence of gastroesophageal reflux disease (GERD) and pharyngolaryngeal reflux (PLR) in children with chronic laryngeal pathology. A total of 46 children aged 6 to 15 years were examined including 16 patients with recurrent respiratory papillomatosis, 15 patients with acquired laryngotracheal scarry stenosis and 15 patients with vocal nodules and functional dysphonia. Combination of GERD with PLR is a factor of risk for scarry laryngostenosis in a child with recurrent respiratory papillomatosis.