Demetri Psaltis, FELLOW SPIE California Institute of Technology Department of Electrical Engineering 1200 East California Boulevard MS 136-93 Pasadena, California 91125 Abstract. We present an overview of imaging systems that incorporate a volume hologram as one of the optical field processing elements in the system. We refer to these systems as volume holographic imaging (VHI) systems. The vol...

BACKGROUND We proposed a modified type III cordectomy for the treatment of early glottic cancer that removed the upper part of the vocalis muscle to improve glottic closure and voice outcomes. METHODS Twenty-two patients with early glottic cancer underwent type III cordectomy, including 9 classical (proposed by European Laryngological Society) and 13 modified resections. Multidimensional voic...

OBJECTIVE To evaluate the short-term outcomes of using cross-linked porcine collagen for vocal fold augmentation. STUDY DESIGN Case series with planned data collection. SETTING Tertiary referral hospital. SUBJECTS AND METHODS Twenty consecutive patients of unilateral vocal fold paralysis (UVFP) were recruited, including 10 males and 10 females. All the subjects received videolaryngostrobo...

Three studies (1,3,5) followed the tendon and nerve gliding exercise protocol described by Totten and Hunter (6), one study utilized only the nerve gliding exercises (4), and another study utilized modifications of the tendon gliding exercises (2). Patients with severe thenar atrophy were excluded in all cases, though only two studies specifically stated inclusion criteria of intermediate stage...

PURPOSE To overcome the potential disadvantages of the use of foreign materials and autologous fat or collagen, we introduce here an autologous plasma gel for injection laryngoplasty. The purpose of this study was to present a new injection material, a plasma gel, and to discuss its clinical effectiveness. MATERIALS AND METHODS From 2 mL of blood, the platelet poor serum layer was collected a...

Background: a patient's self-assessment of his/hers vocal problem and the analysis of the results of a treatment are means used to verify the effectiveness of an intervention and to develop directive procedures for clinical health practice. Psychometric instruments are the most common tools used to perform this task. Validation of self-assessment instruments may be carried out in several ways; ...

OBJECTIVE Self-efficacy (SE) is an optimistic self-belief that one can perform a novel task. This concept involves empowerment, self-esteem, and adaptation to a stressful situation. SE is a strong predictor of health behaviors. Our objectives were to study SE in spasmodic dysphonia (SD) and to develop a disease-specific SE-SD scale. STUDY DESIGN Prospective study. SETTING Academic hospital....

BACKGROUND Laryngopharyngeal reflux is a prevalent, not well-understood disease affecting a high proportion of patients who seek laryngology consultation. The objective of this prospective case series is to explore the subjective and objective voice modifications in Laryngopharyngeal reflux (LPR), especially the usefulness of acoustic parameters as treatment outcomes, and to better understand t...

OBJECTIVES/HYPOTHESIS Supraglottic injection of botulinum toxin (Botox) has been described as an effective treatment for adductor spasmodic dysphonia (ADSD). Anecdotal evidence suggests that the patients have little to no breathiness after injection, but no formal longitudinal studies have been carried out to date. The purpose of this study was to examine the voice outcomes in patients with ADS...

BACKGROUND Compressive symptoms are common in patients with thyroid disease and are an accepted indication for thyroidectomy. The objective of this study was to evaluate the prevalence and severity of voice and swallowing complaints in pre-operative thyroidectomy patients and to compare these with thyroid volume, thyroid pathology and laryngopharyngeal reflux. METHODS A consecutive case serie...