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1. Single-neuron behavior in the cochlear nerve of neonatal (3-day-old) chicks was examined after exposure to a 120-dB SPL pure tone (0.9 kHz) for 48 h. Exposed animals were tested after 0 days or 12 days of recovery. Nonexposed chicks, age-matched to the exposed animals, formed two control groups. 2. Spectral response plots were obtained from each cell.(More)
OBJECTIVE To examine complications of pediatric tracheostomy. STUDY DESIGN Retrospective. METHODS Chart review of children undergoing tracheotomy or laryngeal diversion between 1990 and 1999. RESULTS Charts of 142 children were examined. Average age was 2.64 years (standard deviation [SD], 4.73 y) at surgery. Duration of tracheostomy was 2.08 years(More)
OBJECTIVE To determine if the success of paediatric tympanoplasty is dependent on certain criteria, which are determinable prior to surgery. DESIGN Retrospective chart review. SETTING An academic paediatric otolaryngology department. PATIENTS Seventy-seven patients who had undergone tympanoplasty with or without ossicular reconstruction, but without(More)
Groups of neonatal chicks were examined in three experimental conditions that differed in the age and number of times they were exposed to a pure tone of 0.9 kHz at 120 dB SPL for 48 h. Several animals were exposed once at 2 or 16 days of age, while others were subjected twice to the above stimulus, first at 2 days and then at 16 days. Evoked potential(More)
OBJECTIVE To determine the correlation between findings at direct laryngoscopy and bronchoscopy and presence of extraesophageal reflux disease (EERD). STUDY DESIGN Retrospective chart review METHODS Operative notes of 155 children undergoing direct laryngoscopy and bronchoscopy between 1996 and 1999 for airway symptoms for whom there was a suspicion of(More)
Chicks were exposed to an intense pure tone (0.9 kHz, 120 dB SPL) for 48 h. The DC endocochlear potential was measured with a microelectrode inserted into scala media in six separate groups of animals between 0 and 12 days post exposure. Similar data were obtained from seven groups of unexposed control chicks between 2 and 15 days of age. One to nine(More)
OBJECTIVE To compare the incidence of gastroesophageal reflux disease (GERD) in children under 2 years of age who have symptomatic adenoid hypertrophy requiring surgical removal or who have otitis media with effusion requiring ventilation tube insertion without adenoidectomy. STUDY DESIGN Retrospective chart review. SETTING An academic pediatric(More)
OBJECTIVE To correlate direct laryngoscopic and bronchoscopic findings with the presence of positive test results for gastroesophageal reflux disease (GERD) in children. DESIGN Prospective collection of structured data. SETTING An academic pediatric otolaryngology department. PATIENTS Seventy-seven consecutive patients who underwent direct(More)
OBJECTIVE to determine if there is a correlation between common otolaryngologic symptoms and presence of gastroesophageal reflux disease (GERD) in children. METHODS charts of 295 children presenting with suspicion of GERD were reviewed for presenting symptoms including: (1) airway symptoms: stertor, stridor, frequent cough, recurrent croup, wheezing,(More)