A5090203647- Dysphagia Assessment and Management
- Tracheal and airway disorders
- Head and Neck Surgical Oncology
- Esophageal and GI Pathology
- Ear Surgery and Otitis Media
- Voice and Speech Disorders
- Head and Neck Cancer Studies
- Ear and Head Tumors
- Reconstructive Facial Surgery Techniques
- Sinusitis and nasal conditions
- Nasal Surgery and Airway Studies
- Congenital Ear and Nasal Anomalies
- Olfactory and Sensory Function Studies
- Vascular Malformations and Hemangiomas
- COVID-19 and healthcare impacts
- Respiratory and Cough-Related Research
- Reconstructive Surgery and Microvascular Techniques
- Vascular Anomalies and Treatments
- Otitis Media and Relapsing Polychondritis
- COVID-19 Clinical Research Studies
- Oral and Maxillofacial Pathology
- Telemedicine and Telehealth Implementation
- Foreign Body Medical Cases
- Gastroesophageal reflux and treatments
- Oral health in cancer treatment
Chinese University of Hong Kong
2007-2024
Prince of Wales Hospital
2003-2024
Tseung Kwan O Hospital
2020-2024
United Christian Hospital
1998-2024
City University
2001
St. Gregory's University
2001
University of California, Irvine
2001
This study investigated olfactory and gustatory dysfunction in the 2020 novel coronavirus disease (COVID-19) patients, their correlations with viral load evaluation.Prospective cross-sectional cohort study.One hundred forty-three symptomatic patients being screened for severe acute respiratory syndrome 2 (SARS-CoV-2) were invited to participate. The clinical data of 83 confirmed COVID-19 subjects collected, 60 who but negative recruited as controls. prevalence severity recovery time...
Background The incidence of recurrent nasopharyngeal carcinoma (NPC) after primary radiotherapy is considerable. result re-irradiation to the tumor not satisfactory. Methods Thirty-one patients who received nasopharyngectomy for treatment their (rT1 rT3) at Prince Wales Hospital during period 1986 1997 were reviewed retrospectively. Eleven had performed by transoropalatal approach, 9 maxillary swing and 11 mandibular approach. Results Most recurrences (29 31) rT1 rT2 tumors. No hospital...
The global pandemic of 2019 novel coronavirus disease (COVID-19) has tremendously altered routine medical service provision and imposed unprecedented challenges to the health care system. This impacts patients with dysphagia complications caused by head neck cancers. As this COVID-19 may last longer than severe acute respiratory syndrome (SARS) in 2003, a practical workflow for managing is crucial ensure safe efficient practice personnel. document provides clinical guidelines based on...
To determine objective data to improve the methods of identification anterior ethmoidal artery during endoscopic dissection.Cadaveric dissection adult human heads.A 0 degrees, 4-mm rigid endoscope was used guide uncinectomy and frontoethmoidectomy. The location first determined visually then confirmed by passing a needle through foramen from orbit into nose in all cases. distances were endoscopically measured using simple ruler between two nasal landmarks artery.Fifty-six fossae 28 cadavers...
To assess the contribution of laryngopharyngeal sensory deficits and impaired pharyngeal motor function to aspiration in patients irradiated for nasopharyngeal carcinoma.A retrospective study at a tertiary referral university teaching hospital.One hundred consecutive who underwent radiotherapy carcinoma referred dysphagia clinic testing their laryngopharynx endoscopic evaluation swallowing. The threshold was determined, contraction assessed, status larynx hypopharynx documented before after...
To study the incidence and degree of swallowing dysfunction in patients with nasopharyngeal carcinoma (NPC) who underwent radiation therapy treatment.The was conducted Prince Wales Hospital, a tertiary teaching hospital Chinese University Hong Kong.From October 1999 to July 2001, cohort 20 consecutive newly diagnosed NPC prospectively studied. Questions about symptoms, including functions, were asked, head neck examination oromotor performed subjects before therapy. All subjected...
Abstract Background. There is a paucity of knowledge on dysphagia in patients with nasopharyngeal carcinoma postradiotherapy (NPC post‐RT). The purpose this study was to establish silent aspiration occurrence, safe bolus consistency, and their relationship swallowing physiology dysphagic NPC post‐RT. Methods. Eighty‐five post‐RT were assessed across 4 consistencies. We compared penetration‐aspiration scores against impairments. Results. Silent occurred 65.9% dysphagia, 64.7% thin fluids,...
Our study aimed to investigate the feasibility of using high-density surface electromyography (HD-sEMG) for swallowing assessment by comparing quantitative parameters and topographic patterns HD-sEMG between post-irradiated patients healthy individuals.Ten volunteers ten nasopharyngeal carcinoma were recruited. 96-channel was recorded although each participant consumed different consistencies food (thin thick liquid, puree, congee, soft rice). Dynamic topography generated from root mean...
Abstract Two cases of Rosai-Dorfman disease with polypoid nasal infiltration mimicking tuberculosis and malignant lymphoma are reported. This rare benign was first described by Rosai Dorfman in 1969 is characterized histiocytic proliferation. It seldom considered the differential diagnosis granulomatous diseases due to its rarity histological similarity other diseases. Extranodal manifestations this uncommon. Although no specific treatment can guarantee a sustained remission disease, surgery...
In an attempt to gain a better understanding of the prevalence otitis media with effusion (OME) in Hong Kong community, and compare characteristics disease here OME as it is described Western literature, we screened more than 6,000 6- 7-year-old children both clinical audiologic examinations. The initial positive screening rate was 5.3%. Upon further evaluation, determined that overall persistent 2.2%. We found pattern natural history are similar those reported literature.
Objective To establish the efficacy of immediate preoperative ototopical ofloxacin eardrops in eradicating middle ear pathogens and improving operative outcome. Study Design Single-blind, randomized control study. Setting Tertiary referral center, ambulatory clinic, hospital setting. Patients Consecutive patients with chronic suppurative otitis media for Type I tympanoplasty (myringoplasty). Interventions The were randomly assigned to 3 groups: Group A underwent 10-minute daily treatments 2...
Abstract Background To investigate a novel velopharyngeal squeeze maneuver (VPSM) and endoscopic pharyngeal contraction grade (EPCG) scale for the evaluation of motor function. Methods During examination 77 post‐irradiated nasopharyngeal carcinoma patients control subjects, VPSM was rated lateral wall movement graded with EPCG during swallowing. Pharyngeal constriction ratio (PCR) measured by videofluoroscopy used correlation. Results showed almost perfect intra‐rater inter‐rater reliability...
Esophageal perforation due to a traumatic intubation is exceedingly rare. If not noticed immediately or treated promptly, however, the morbidity and mortality significant. Most cases present within 24 h after event. A delay in symptoms that signal esophageal endotracheal has serious clinical implications. We report case of for elective sinus surgery under general anesthesia with onset signs. The diagnosis management this complication are discussed. Case Report 63-yr-old woman who was...
Exercise-based swallowing training (EBST) and transcutaneous neuromuscular electrical stimulation (TNMES) are common modalities used to treat late dysphagia after radiotherapy for nasopharyngeal carcinoma (NPC). We aimed investigate compare the efficacies of EBST TNMES as proactive treatments administered early radiotherapy.