Leh Kiong Huon

Leh Kiong Huon
Cathay General Hospital · Otolaryngology Head and Neck Surgery

MD

About

42
Publications
18,238
Reads
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504
Citations
Additional affiliations
July 2014 - June 2015
Stanford University
Position
  • Researcher
July 1999 - present
Cathay General Hospital
Position
  • ENT Doctor

Publications

Publications (42)
Article
Large, benign intramandibular lesions are frequently removed by resection followed by extensive free tissue transfer or delayed bone grafting. We outline a protocol to remove benign mandibular lesions using sagittal split osteotomy (SSO) with virtual surgical planning (VSP) to mitigate risks involved with this effective, tissue-saving approach. Pat...
Chapter
Although sleep and sleep disorders have been studied for centuries, it was the development of sophisticated tools to monitor eye movements, brain waves, and muscle tone in the mid-20th century that led to modern sleep research. These tools allowed neuroscientists to distinguish between different “states” or “phases” of sleep, and to relate these fi...
Chapter
“Sleep Medicine” is now a specialty in its own right. Currently, there is increasing recognition of the very negative impact sleep disorders have on learning, education, safety, and quality of life. Technological advances will help us to break down diagnoses (e.g., narcolepsy has now been subdivided into types 1 and 2, depending upon the hypocretin...
Article
Full-text available
While effects of maxillomandibular advancement (MMA) on respiratory parameters for patients with obstructive sleep apnea (OSA) are well described, effects on sleep architecture before and after MMA are not. A retrospective cohort analysis on sleep architecture was examined in 10 OSA patients who underwent MMA surgery between July 2013 and November...
Article
Full-text available
A narrow maxilla with high arched palate characterizes a phenotype of obstructive sleep apnea (OSA) patients that is associated with increased nasal resistance and posterior tongue displacement. Current maxillary expansion techniques for adults are designed to correct dentofacial deformity. We describe distraction osteogenesis maxillary expansion (...
Article
Full-text available
Objectives: The primary objective of the study was to understand the differential impact of continuous positive airway pressure (CPAP) on the location, degree and pattern of airway collapse in obstructive sleep apnea (OSA) patients utilizing drug-induced sleep endoscopy (DISE). Study design: Non-randomized trial. Setting: University Medical Ce...
Article
A tapered mandibular contour is popular with Far Eastern Asians. This study describes a safe and accurate method of using preoperative virtual surgical planning (VSP) and an intraoperative ostectomy guide to maximize the esthetic outcomes of mandibular symmetry and tapering while mitigating injury to the inferior alveolar nerve (IAN). Twelve subjec...
Article
There is too much individual patient variation in mandibular anatomy for any single described genioglossus advancement technique to be used consistently. Virtual surgical planning allows surgeons to design genioglossus osteotomy that captures the structures of interest. Intraoperative osteotomy and positioning guides mitigate known risks of the pro...
Article
Full-text available
Dynamic magnetic resonance imaging (MRI) allows real-time characterization of upper airway collapse in sleeping subjects with obstructive sleep apnea (OSA). The aim of our study was to use sleep MRI to compare differences in upper airway collapse sites between BMI-matched subjects with mild OSA and severe OSA. This is a prospective, nested case–con...
Article
Full-text available
Purpose The purpose of this study was to evaluate the association between obstructive sleep apnea (OSA) and ophthalmologic diseases, specifically glaucoma, nonarteritic anterior ischemic optic neuropathy (NAION), retinal vein occlusion (RVO), central serous chorioretinopathy (CSR), and floppy eyelid syndrome (FES), by performing a systematic review...
Article
Full-text available
Objectives To use drug-induced sedation endoscopy (DISE) and computational fluid dynamics (CFD) modeling to study dynamic airway and airflow changes after maxillomandibular advancement (MMA), and how the changes correlate with surgical success based on polysomnography parameters. Study Design Retrospective cohort study. Setting University medical...
Article
Full-text available
Objectives: Using sleep MRI, we aimed to identify static craniofacial measurements and dynamic upper airway collapse patterns associated with severe obstructive sleep apnea (OSA) during natural sleep in age and BMI matched patients. Design: Nested case-control study. Setting: Sleep MRI images (3.0 Tesla scanner) and synchronized acoustic recor...
Article
Objectives/HypothesisTo systematically review the international literature evaluating the role of the epiglottis in snoring and obstructive sleep apnea and to explore possible treatment options available.Data SourcesPubMed, Scopus, Embase, Google Scholar, Book Citation Index-Science, CINAHL, Conference Proceedings Citation Index-Science, The Cochra...
Article
Obstructive sleep apnea syndrome (OSAS) is caused by multi-level upper airway obstruction. Anatomic changes at the sites of obstruction may modify the physical or acoustic properties of snores. The surgical success of OSA depends upon precise localization of obstructed levels. We present a case of OSAS who received simultaneous dynamic MRI and snor...
Article
Full-text available
The efficacy of maxillomandibular advancement (MMA) for obstructive sleep apnea (OSA) with anatomic airway changes has previously been studied using static imaging and endoscopy in awake subjects. The aim of the present study was to use drug-induced sleep endoscopy (DISE) to evaluate the dynamic upper airway changes in sleeping subjects before and...
Article
Full-text available
Progressive narrowing of the upper airway increases airflow resistance and can produce snoring sounds and apnea/hypopnea events associated with sleep-disordered breathing due to airway collapse. Recent studies have shown that acoustic properties during snoring can be altered with anatomic changes at the site of obstruction. To evaluate the instanta...
Article
Objectives Snore signals are produced by soft tissue vibration in the upper airway (UA). To date, there is no gold standard to localize UA narrowing sites in patients with obstructive sleep apnea syndrome (OSAS). In this study, we use a “vocal tract model” to investigate the association between snore acoustic characteristics and UA collapse. Dynami...
Article
Objective: To investigate and compare the performance of head mirrors and headlights during otolaryngological examination. Methods: The illuminance and illumination field of each device were measured and compared. Visual identification and visual acuity were also measured, in 13 medical students and 10 otolaryngology specialists. Results: The...
Article
To investigate the association between vertigo and stroke in Taiwan using the Bureau of National Health Insurance research database. Information on adult patients with an index vertigo attack in 2006 was retrieved from Bureau of National Health Insurance research database. All patients with specific diagnostic codes for vertigo were included. Occur...
Article
To investigate the outcomes of intratympanic (IT) gentamicin sulfate injection to treat intractable Ménière's disease (MD) using evidence-based methods. Data were retrieved from a MEDLINE search (January 1995 through January 2011). Selected were English-language articles presenting outcomes of IT gentamicin injection to treat MD that had a prospect...
Article
Full-text available
Summary An unusual case of primary laryngeal tuberculosis have been reported. No other tubercular focus in the body could be detected by various investigations. The clinical diagnosis was confirmed by histopathological examination.
Article
Full-text available
Spontaneous pneumomediastinum (SPM) is a rare disease entity that often manifests localized signs in the head and neck region. The thoracic features of SPM have been well described; however, there is a paucity of information on its otolaryngological characteristics. The authors describe the clinical management among SPM patients having primarily he...
Conference Paper
Full-text available
Objective: Intratympanic genemicin (ITG) is an option for the treatment of intractable Ménière disease (MD). The aim of this study is to investigate the outcomes of ITG for MD using evidence-based methodology.
Article
Full-text available
Objective: Intratympanic genemicin (ITG) is an option for the treatment of intractable Ménière disease (MD). The aim of this study is to investigate the outcomes of ITG for MD using evidence-based methodology. Method: The MedLine database (1985~2010) was searched for original articles (level I or II in evidence strength) published in peer-reviewed...
Article
To the Editor: We read the recently published article, “Risk of Stroke in Patients Hospitalized for Isolated Vertigo: A 4-Year Follow-Up Study,”1 in Stroke with great interest. In this study, Lee et al used Taiwan's 2004 National Health Insurance Research Database to conduct a retrospective cohort study of 3021 hospitalized patients with vertigo;...

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Project (1)
Project
The objective is to systematically review medical and surgical therapies for snoring and obstructive sleep apnea. By summarizing (qualitatively or quantitatively) the literature, providers and patients will be better informed on decision making. Additionally, by summarizing the literature, the gaps in the literature can be identified and could serve to guide future research.