Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 4 de 4
Filtrar
Más filtros










Base de datos
Intervalo de año de publicación
1.
OTO Open ; 5(3): 2473974X211031471, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34595365

RESUMEN

OBJECTIVES: To characterize the quality and enjoyment of sound by cochlear implant (CI) recipients and identify predictors of these outcomes after cochlear implantation. STUDY DESIGN: Cross-sectional study. SETTING: A tertiary care hospital. METHODS: Surveys based on the Hearing Implant Sound Quality Index were sent to all patients who received a CI at a tertiary care hospital from 2000 to 2019. Survey questions prompted CI recipients to characterize enjoyment and quality of voices, music, and various sounds. RESULTS: Of the 339 surveys, 60 (17.7%) were returned with complete data. CI recipients had a mean ± SD age of 62.5 ± 17.4 years with a mean 8.0 ± 6.1 years since CI surgery. Older current age and age at implantation significantly predicted lower current sound quality (P < .05) and sound enjoyment (P < .05), as well as worsening of sound quality (P < .05) and sound enjoyment (P < .05) over time. Greater length of implantation was associated with higher reported quality and enjoyment (r = 0.4, P < .001; r = 0.4, P < .05), as well as improvement of sound quality (r = 0.3, P < .05) but not sound enjoyment over time. CONCLUSION: Recipients who had CIs for a longer period had improved quality of sound perception, suggesting a degree of adaptation. However, CI recipients with implantation at an older age reported poorer sound quality and enjoyment as well as worsening sound quality and enjoyment over time, indicating that age-related changes influence outcomes of cochlear implantation.

2.
Otolaryngol Head Neck Surg ; 164(3): 652-656, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-32894994

RESUMEN

OBJECTIVE: To demonstrate the feasibility of a novel procedure whereby a suture is placed transorally in the tensor veli palatini muscle to tighten it, thereby dilating the cartilaginous portion of the eustachian tube (ET). STUDY DESIGN: The study design was a prospective cadaveric experiment to examine the feasibility of a novel treatment for ET dysfunction. SETTING: Academic medical center in a research-oriented operating room with intraoperative computed tomography (CT) capabilities. METHODS: Seven fresh-frozen cadaver heads were obtained, each of which was thawed for 36 hours prior to use. The preprocedural volumes of the cartilaginous ET were measured by filling the ET with an iodine-containing radiocontrast agent via the nasopharynx and then obtaining CT images. Submucosal flaps in the soft palate were raised, and sutures were placed in the tensor veli palatini bilaterally to increase tension. After completion of the procedure, contrast placement and CT imaging were repeated. Three-dimensional models of the ETs were created, and the volumes were measured and compared. RESULTS: Of the 14 ETs evaluated, 13 showed an increase in postprocedure volume. On average, postprocedure volumes showed a 57% increase from preprocedure volumes (mean relative change, 57.1%; P = .013). CONCLUSION: Placement of a tension-holding suture in the tensor veli palatini muscle can reliably dilate the cartilaginous portion of the ET. Such a procedure may be useful in the treatment of ET dysfunction.


Asunto(s)
Enfermedades del Oído/cirugía , Trompa Auditiva , Músculos Palatinos/cirugía , Técnicas de Sutura , Adulto , Cadáver , Estudios de Factibilidad , Humanos
3.
Annu Int Conf IEEE Eng Med Biol Soc ; 2019: 6975-6978, 2019 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-31947443

RESUMEN

Treatment of throat cancers have improved due to minimally-invasive trans-oral approaches. Surgeons rely on preoperative imaging to guide their resection; however, large tissue deformations occur during trans-oral procedures due to placement of necessary retractors and laryngoscopes which hinders the surgeon's ability to accurately assess tumor extent and location of critical structures. We propose an image-guided framework utilizing intraoperative imaging and deformation modeling to improve surgeon accuracy and confidence. A CT-compatible laryngoscopy system previously developed was evaluated in this framework. Intraoperative images were acquired during laryngoscopy; force-sensing capabilities were enabled in the laryngoscope; and tracking of the scope and anatomic features was trialed. Tissue deformation and displacement were quantified and determined to be extensive, with values <; 4.6 cm in the tongue, <; 1.8 cm in bony structures, and <; 108.9 cm3 in airway volume change. Surgical navigation using intraoperative imaging and tracking was evaluated. Preliminary assessment of deformation modeling showed potential to supplement intraoperative imaging. Future work will involve streamlined integration of the components of this framework.


Asunto(s)
Procedimientos Quirúrgicos Orales , Cirugía Asistida por Computador , Imagenología Tridimensional , Laringoscopios , Laringoscopía
4.
Laryngoscope Investig Otolaryngol ; 4(6): 609-616, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31890878

RESUMEN

BACKGROUND: Prior therapeutic radiation exposure in the setting of head and neck malignancies is associated with difficult airway instrumentation. We sought to characterize the anatomic changes that produce this phenotype. STUDY DESIGN: Retrospective review. METHODS: Five individuals with prior radiation therapy to the upper aerodigestive tract (previously irradiated) and 10 with no prior history of therapeutic radiation exposure (nonirradiated) were enrolled. Computed tomography images obtained before and during laryngoscope insertion ("uninstrumented" and "instrumented", respectively) were used to reconstruct three-dimensional representations of the pharyngeal airway, hyoid, and mandible. RESULTS: In the instrumented state, pharyngeal airway volumes were significantly greater in nonirradiated subjects relative to previously irradiated subjects (P = .01), and overall translation of both the hyoid and mandible was also greater in nonirradiated subjects (P = .01 and .04, respectively). CONCLUSION: Individuals with prior therapeutic radiation exposure to the upper aerodigestive tract differ from nonirradiated subjects with respect to airway deformation and bony structure translation during laryngoscopy. LEVEL OF EVIDENCE: 4.

SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA