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OBJECTIVE This study examines subjects' level of consciousness with bispectral analysis in sedation endoscopy of the upper airway. STUDY DESIGN A prospective study. SETTING University hospital. SUBJECTS AND METHODS Bispectral analysis levels recorded in natural sleep of 43 patients with obstructive sleep apnea during an overnight polysomnographic(More)
OBJECTIVE To determine the prevalence and risk factors of obstructive sleep apnoea syndrome (OSAS) in Chinese children using a two-phase community-based study design. METHODS Children from 13 primary schools were randomly recruited. A validated OSAS screening questionnaire was completed by their parents. Children at high risk of OSAS and a randomly chosen(More)
BACKGROUND Sinus histiocytosis with massive lymphadenopathy or Rosai-Dorfman disease (RDD) is a rare benign disease with nodal and extranodal involvement. METHODS AND RESULTS Herein, we report 3 cases in which the patients presented with nasal masses. In addition, 2 of the 3 patients had subglottic lesions. Only 2 of the 3 patients had cervical(More)
OBJECTIVE To establish an olfactory test in the Hong Kong Chinese population. STUDY DESIGN Prospective analysis of the results of a combined olfactory test (COT) for patients with olfactory dysfunction and for normal subjects attending a secondary and tertiary ear, nose and throat centre. METHOD Our COT was based on and modified from the Connecticut(More)
UNLABELLED Congenital giant ranula causing life-threatening upper airway obstruction is a rare condition. A well-planned ex utero intrapartum treatment (EXIT) procedure for aspiration and decompression of the cystic lesion is simple, efficacious and effective in securing a patent airway before the fetus is completely delivered, and may prevent lifelong(More)
This paper explores the mechanism(s) whereby liposomes accumulate in chronically ischaemic myocardium and intestine. Plasma prepared from venous blood obtained at sites of myocardial and intestinal infarction does not promote the lysis of positively and negatively charged liposomes in vitro. Albumin-bound lysophosphatidylcholine (greater than or equal to 2(More)
OBJECTIVES/HYPOTHESIS To assess the contribution of laryngopharyngeal sensory deficits and impaired pharyngeal motor function to aspiration in patients irradiated for nasopharyngeal carcinoma. STUDY DESIGN A retrospective study at a tertiary referral university teaching hospital. METHODS One hundred consecutive patients who underwent radiotherapy for(More)
Video sleep nasendoscopy is a valuable technique for the study of upper airway dynamics in obstructive sleep apnea syndrome. The authors' 10-year experience with its use in Hong Kong has allowed technique refinement for safety and optimal evaluation. Its use in the evaluation of patients who snore, patients with obstructive sleep apnea syndrome, and(More)
The present study validates and evaluates the sensitivity and specificity of four internationally popular questionnaires, translated into Chinese, for assessing suspected obstructive sleep apnea (OSA) patients, namely, the Berlin questionnaire, the ASA checklist, the STOP questionnaire and the STOP–BANG questionnaire. Their predictive values in OSA risks in(More)
We reviewed the results of the use of the Dumon silicone stents in patients experiencing tuberculous tracheobronchial stenosis since 1994, using a retrospective case review in a university teaching hospital with 1,450 beds serving a population of > 1.8 million. Between February 1994 and September 2001, seven patients with tuberculous tracheobronchial(More)