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1.
Otol Neurotol ; 45(6): 684-689, 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38769097

RESUMEN

OBJECTIVE: To evaluate quality-of-life outcomes for patients with vestibular schwannomas (VS) undergoing a middle cranial fossa (MCF) approach. STUDY DESIGN: Prospective study from 2018 to 2023. SETTING: Tertiary academic institution. PATIENTS: Adults with sporadic VS. INTERVENTIONS: MCF. MAIN OUTCOME MEASURES: The primary outcome measure was the change in preoperative and 1-year postoperative Penn Acoustic Neuroma Quality-of-life (PANQOL) scores. Secondary outcome measures included hearing preservation and facial nerve function. RESULTS: Of the 164 patients who underwent MCF for sporadic VS, 78 patients elected to voluntarily complete preoperative PANQOL assessments prior to surgery. Seventy-one (91%) of those 78 patients completed postoperative PANQOL surveys. Fifty (70%) of the respondents were female and the median age was 48 years (range, 27-71 years). Overall, at 1-year postsurgery, a minimal clinically important difference (MCID) was obtained in the hearing (mean difference, 10.5; 95% confidence interval [CI], 4.3-16.7) and anxiety (mean difference, 18.8; 95% CI, 11.7-25.9) domains. For patients with hearing preservation (n = 48, 68%), MCIDs were reached in the hearing (mean difference, 13.4; 95% CI, 6.3-20.6), anxiety (mean difference, 20.8; 95% CI, 11.8-29.9), energy (mean difference, 13.7; 95% CI, 3.6-23.8), pain (mean difference, 13.7; 95% CI, 3.6-23.8) domains, and overall PANQOL scores (mean difference, 12.7; 95% CI, 7.1-18.3). Postoperatively, 64 (90%) patients maintained a House-Brackmann I. CONCLUSIONS: To our knowledge, this is the largest study examining disease-specific QOL for VS patients undergoing MCF. Based on our institution's experience, MCF approach for small VS is associated with clinically meaningful improvements in QOL, hearing preservation, and excellent facial nerve outcomes.


Asunto(s)
Fosa Craneal Media , Craneotomía , Neuroma Acústico , Calidad de Vida , Humanos , Neuroma Acústico/cirugía , Femenino , Persona de Mediana Edad , Masculino , Adulto , Fosa Craneal Media/cirugía , Anciano , Estudios Prospectivos , Craneotomía/efectos adversos , Resultado del Tratamiento
2.
Otolaryngol Clin North Am ; 56(3): 533-541, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36964092

RESUMEN

Neurofibromatosis type 2 (NF2) is an autosomal dominant syndrome caused by a mutation in the NF2 suppressor gene and is characterized by the development of multiple benign tumors throughout the central nervous system. Bilateral vestibular schwannomas (VSs) are pathognomonic for NF2 and are associated with progressive hearing loss and eventual deafness in most patients. This review presents current management options for NF-2-associated VSs.


Asunto(s)
Pérdida Auditiva , Neurofibromatosis 2 , Neuroma Acústico , Humanos , Neurofibromatosis 2/complicaciones , Neurofibromatosis 2/terapia , Neuroma Acústico/terapia , Pérdida Auditiva/complicaciones , Mutación
3.
JAMA Otolaryngol Head Neck Surg ; 148(12): 1132-1139, 2022 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-36264557

RESUMEN

Importance: Olfactory dysfunction (OD) is an increasingly common and morbid condition, especially given the ongoing COVID-19 pandemic. Thus, the ability to reproducibly measure smell loss-associated quality of life (QOL) and its response to treatment is paramount. Objective: To develop and validate a concise and visually appealing smell loss-associated QOL patient-reported outcome measure for OD. Design, Setting, and Participants: A secondary analysis of comments to an online survey by 1000 patients with olfactory dysfunction published in 2013 was used as the primary source to generate items of the Olfactory Dysfunction Outcomes Rating (ODOR). In addition, 30 patients with OD enrolled in 2 clinical studies at a tertiary care medical center (Washington University) were asked to identify their main concerns associated with smell loss. And finally, 4 otolaryngologists reviewed the items generated from the online survey and the patients' interviews to identify any additional items. Prospective study design was used for data collection from the 30 patients and 4 otolaryngologists. Prospective study design was used for survey validation. Validation of the ODOR was performed with 283 patients enrolled in several prospective studies at a single institution that completed the ODOR as an outcome measure. Main Outcomes and Measures: Item generation and selection were the outcomes of ODOR development. The psychometric and clinimetric measures evaluated for validation were internal consistency, test-retest reliability, face and content validity, concurrent validity, and discriminant validity. Minimal clinically important difference was also determined. Results: The ODOR is a 28-item instrument with each item scored as either no difficulty or very rarely bothered (0) to complete difficulty or very frequently bothered (4) with a total instrument score range of 0 to 112 points. Higher scores indicate higher degree of dysfunction and limitation. Validation in the cohort of 283 patients (mean [SD] age, 47.0 [14.4] years; 198 female participants [73%]; 179 White participants [80%]) revealed that the instrument has high internal consistency (Cronbach α = 0.968), test-retest reliability (r = 0.90 [95% CI, 0.81-0.95]), face validity, content validity, concurrent validity (r = 0.87 [95% CI, 0.80-0.91] compared with the Questionnaire of Olfactory Disorders-Negative Statements; ρ = -0.76 [95% CI, -0.81 to -0.71] compared with a patient-reported symptom severity scale), and divergent validity (mean score difference, -33.9 [95% CI, -38.3 to -29.6] between normosmic patients and hyposmic/anosmic patients). The minimal clinically important difference was 15 points. The estimated time for survey completion was approximately 5 minutes. Conclusions and Relevance: In this survey creation and validation study, the ODOR was shown to be a novel, concise, reliable, and valid patient-reported outcome measure of OD-associated QOL. It can be used to measure physical problems, functional limitations, and emotional consequences associated with OD and how they change after a given intervention, which is clinically applicable and particularly pertinent given the growing burden of OD associated with COVID-19.


Asunto(s)
Anosmia , COVID-19 , Femenino , Humanos , Persona de Mediana Edad , Calidad de Vida , Estudios Prospectivos , Reproducibilidad de los Resultados , Pandemias , COVID-19/complicaciones
4.
Otol Neurotol ; 43(4): 443-451, 2022 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-35170555

RESUMEN

OBJECTIVE: Describe early hearing preservation (HP) cochlear implantation (CI) outcomes using a new slim lateral wall electrode (SLWE). STUDY DESIGN: Prospective cohort study. SETTING: Tertiary referral center. PATIENTS: Adult CI candidates with preoperative low-frequency pure-tone average (LFPTA; 125, 250, 500 Hz) ≤60 dB HL. INTERVENTION: CI with and without intracochlear real-time electrocochleography (RT-ECochG). MAIN OUTCOME MEASURE: HP (LFPTA ≤80 dB HL), LFPTA shift, speech-perception performance measures, postoperative CT reconstruction. RESULTS: Forty-two subjects were implanted with the SLWE. Thirty patients underwent full insertion without RT-ECochG feedback, and HP was maintained at 3-months postactivation for 7 (23.3%) patients with mean LFPTA shift of 57.5 ±â€Š25.6 dB HL. RT-ECochG feedback was utilized on 12 patients, of whom 6 patients had full insertions and 6 patients had anywhere from 1 to 3 electrodes left outside of the cochlea based on RT-ECochG feedback. At 3 months postoperatively, HP was achieved on 10 (83.3%) patients and mean LFPTA shift was 18.9 c 11.7 dB HL. Mean difference between LFPTA threshold shift at 3-months postactivation with and without RT-ECochG was 38.6 dB HL (95% CI, 25.6-51.67). There was an improvement in delta CNC from preoperative to 3-months postactivation when using RT-ECochG, with mean difference 20.7% (95% CI, 3.3-38.1). CONCLUSIONS: Use of RT-ECochG monitoring during SLWE placement results in fewer full electrode insertions and significantly better HP rates and speech-perception outcomes when compared with unmonitored insertions. Further investigation is needed to evaluate long-term audiologic outcomes to better understand the relationships among ECochG, cochlear trauma, functional outcomes, and HP.


Asunto(s)
Implantación Coclear , Implantes Cocleares , Adulto , Audiometría de Respuesta Evocada/métodos , Audiometría de Tonos Puros , Umbral Auditivo/fisiología , Implantación Coclear/métodos , Audición/fisiología , Humanos , Estudios Prospectivos , Resultado del Tratamiento
5.
Am J Otolaryngol ; 43(2): 103299, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34894449

RESUMEN

OBJECTIVE: To evaluate the efficacy and safety of intranasal theophylline saline irrigation on olfactory recovery in patients with post-viral olfactory dysfunction (PVOD). METHODS: Between May 2019 and April 2020, we conducted a double-blinded, placebo-controlled randomized clinical trial of adults with 6-36 months of PVOD. Patients were randomized to nasal theophylline saline irrigation or placebo saline irrigation twice a day for 6 weeks. The primary outcome was the Global Rating of Smell Change. Secondary outcomes were changes in the University of Pennsylvania Smell Identification Test (UPSIT) and Questionnaire of Olfactory Disorders-Negative Statements (QOD-NS). RESULTS: Twenty-two patients (n = 12, theophylline; n = 10, placebo) completed the study. Slightly more patients in the theophylline group (33%) reported improved smell compared to the placebo group (30%, difference 3.3%, 95% CI -35.6% to 42.3%). The median differences in pre- and post-treatment UPSIT and QOD-NS change between the two groups were 1 (95% CI -3 to 5) and -10 (95% CI -15 to -4), respectively in favor of theophylline. Three patients receiving theophylline and 2 receiving placebo had clinically meaningful improvements on the UPSIT (difference 5%, 95% CI -30% to 40%). There were no adverse events, and serum theophylline levels were undetectable in 10/10 patients. CONCLUSIONS: While safe, there were no clinically meaningful differences in olfactory change between the two groups except for olfaction-related quality of life, which was better with theophylline. The imprecise estimates suggest future trials will need substantially larger sample sizes or treatment modifications, such as increasing the theophylline dose, to observe larger treatment effects.


Asunto(s)
Trastornos del Olfato , Olfato , Adulto , Humanos , Odorantes , Trastornos del Olfato/tratamiento farmacológico , Trastornos del Olfato/etiología , Calidad de Vida , Teofilina/uso terapéutico
6.
J Neurol Surg B Skull Base ; 82(Suppl 3): e335-e341, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34306958

RESUMEN

Objective To investigate the diagnostic performance of computed tomography (CT) to determine the origin, skull base involvement, and stage of sinonasal inverted papilloma (IP). Design This is a retrospective cohort study. Setting This is set at a tertiary care medical center. Participants Patients with preoperative CT imaging who underwent extirpative surgery for histologically confirmed sinonasal IP between January 2005 and October 2019. Main Outcome Measures The likely sites of tumor origin, skull base involvement, and radiographic tumor stage were determined by two board-certified neuroradiologists after re-reviewing preoperative CT imaging. These radiologic findings were then compared with intraoperative and pathologic findings. Results Of 86 patients, 74% (64/86) had IP lesions with correctly classified sites of origin on CT. CT was not sensitive for diagnosing ethmoid sinus origin (48%, 52%), frontal sinus origin (80%, 40%), and skull base origin (17%, 17%). CT was not sensitive (62%, 57%) but specific (86%, 98%) for identifying any skull base involvement. There was substantial-to-near perfect agreement between radiographic and pathologic Cannady stages (weighted κ = 0.61 for rater 1; weighted κ = 0.81 for rater 2). Interrater agreement was substantial for identifying tumor origin (κ = 0.75) and stage (weighted κ = 0.62) and moderate for identifying skull base involvement (κ = 0.43). Conclusion Interrater agreement on CT findings was substantial except on skull base involvement. CT correctly predicted site of tumor origin in up to 74% of subjects. CT was not sensitive for diagnosing skull base involvement but had substantial-to-near perfect agreement with pathologic tumor staging. CT is a useful but albeit limited adjunct for tumor localization and surgical planning for sinonasal IP.

7.
Ear Nose Throat J ; 100(5): 329-334, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33683979

RESUMEN

OBJECTIVE: Chronic rhinosinusitis (CRS) is an inflammatory disease of the paranasal sinuses and mucosa. Topical nasal corticosteroids are a mainstay treatment for CRS by reducing sinonasal inflammation and improving mucociliary clearance. However, topical corticosteroids have limited paranasal distribution, and patient response to treatment has been variable in randomized controlled trials (RCT). Thus, there is significant interest in evaluating the efficacy of nasal steroids delivered by nasal irrigation in order to improve penetration and absorption of topical steroids into the sinonasal mucosa. In this review, we discuss the use of off-label nasal steroid irrigations in the management of CRS. METHODS: A review of clinical trials evaluating the use of nasal steroid irrigations for CRS in the PubMed electronic database was performed. RESULTS: Of the 12 clinical studies identified, 10 evaluated budesonide irrigations while the remaining 2 focused on mometasone. The overwhelming majority of studies for both budesonide and mometasone supported the use of nasal irrigations with corticosteroids over nasal corticosteroid sprays alone. However, the heterogeneity in study design, patient cohort, and volume of steroid irrigation limit the interpretations of these studies. CONCLUSIONS: Nasal irrigation with corticosteroids is beneficial and safe for the treatment of CRS. Future RCTs controlling for type of surgical intervention, CRS pheno- and endo-type, as well as dosing and duration of nasal corticosteroid irrigations are warranted.


Asunto(s)
Corticoesteroides/administración & dosificación , Lavado Nasal (Proceso)/métodos , Uso Fuera de lo Indicado , Rinitis/tratamiento farmacológico , Sinusitis/tratamiento farmacológico , Administración Intranasal , Enfermedad Crónica , Ensayos Clínicos como Asunto , Humanos , Rociadores Nasales , Resultado del Tratamiento
9.
JAMA Otolaryngol Head Neck Surg ; 147(6): 502-509, 2021 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-33734298

RESUMEN

Importance: Viral upper respiratory tract infections are a major cause of olfactory loss. Olfactory training (OT) is a promising intervention for smell restoration; however, a mechanistic understanding of the changes in neural plasticity induced by OT is absent. Objective: To evaluate functional brain connectivity in adults with postviral olfactory dysfunction (PVOD) before and after OT using resting-state functional magnetic resonance imaging. Design, Setting, and Participants: This prospective cohort study, conducted from September 1, 2017, to November 30, 2019, recruited adults with clinically diagnosed or self-reported PVOD of 3 months or longer. Baseline olfaction was measured using the University of Pennsylvania Smell Identification Test (UPSIT) and the Sniffin' Sticks test. Analysis was performed between December 1, 2020, and July 1, 2020. Interventions: Participants completed 12 weeks of OT using 4 essential oils: rose, eucalyptus, lemon, and clove. The resting-state functional magnetic resonance imaging measurements were obtained before and after intervention. Main Outcome and Measures: The primary outcome measure was the change in functional brain connectivity before and after OT. Secondary outcome measures included changes in UPSIT and Sniffin' Sticks test scores, as well as patient-reported changes in treatment response as measured by subjective changes in smell and quality-of-life measures. Results: A total of 16 participants with PVOD (11 female [69%] and 14 White [88%]; mean [SD] age, 60.0 [10.5] years; median duration of smell loss, 12 months [range, 3-240 months]) and 20 control participants (15 [75%] female; 17 [85%] White; mean [SD] age, 55.0 [9.2] years; median UPSIT score, 37 [range, 34-39]) completed the study. At baseline, participants had increased connectivity within the visual cortex when compared with normosmic control participants, a connection that subsequently decreased after OT. Furthermore, 4 other network connectivity values were observed to change after OT, including an increase in connectivity between the left parietal occipital junction, a region of interest associated with olfactory processing, and the cerebellum. Conclusions and Relevance: The use of OT is associated with connectivity changes within the visual cortex. This case-control cohort study suggests that there is a visual connection to smell that has not been previously explored with OT and that further studies examining the efficacy of a bimodal visual and OT program are needed.


Asunto(s)
Mapeo Encefálico/métodos , Imagen por Resonancia Magnética , Trastornos del Olfato/rehabilitación , Trastornos del Olfato/virología , Infecciones del Sistema Respiratorio/virología , Corteza Visual/diagnóstico por imagen , Corteza Visual/fisiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Trastornos del Olfato/fisiopatología , Estudios Prospectivos , Calidad de Vida , Recuperación de la Función , Umbral Sensorial
10.
Int Forum Allergy Rhinol ; 10(8): 936-943, 2020 08.
Artículo en Inglés | MEDLINE | ID: mdl-32470217

RESUMEN

BACKGROUND: There is no consensus regarding the best route of intranasal delivery of corticosteroids in the treatment of chronic rhinosinusitis (CRS). The study objective of this work was to compare the impact of mometasone furoate nasal spray (MFNS) vs mometasone nasal irrigation in the management of CRS patients who have not undergone sinus surgery. METHODS: A double-blind, placebo-controlled, randomized clinical trial was conducted in adults with CRS. Individuals with nasal polyps and/or history of sinus surgery were excluded. Patients were randomized to receive 8 weeks of either MFNS or mometasone nasal irrigation. The primary outcome measure was change in the 22-item Sino-Nasal Outcome Test (SNOT-22) score between the 2 groups. Secondary outcome measures included patient global response to treatment and Lund-Kennedy endoscopy scores. RESULTS: A total of 43 participants completed the study (n = 22, MFNS; n = 21,mometasone nasal irrigation). Fourteen (64%) participants in the MFNS group and 17 (81%) in the mometasone lavage group had a clinically meaningful improvement in SNOT-22 scores with a proportion difference of 17% (95% confidence interval [CI], -9% to 44%). The least-squares (LS) mean difference between the 2 groups for SNOT-22 was -8.6 (95% CI, -17.7 to 0.58; p = 0.07), whereas the LS mean difference between the 2 groups for Lund-Kennedy endoscopy scores was 0.16 (95% CI, -0.84 to 1.15; p = 0.75). No adverse events were associated with the study. CONCLUSION: Both MFNS and mometasone nasal irrigations are beneficial in symptom management of CRS. Our study suggests that patients who perform mometasone lavage do better in a clinically meaningful way, but our results are not definitive and further studies are warranted.


Asunto(s)
Pólipos Nasales , Sinusitis , Adulto , Humanos , Furoato de Mometasona/uso terapéutico , Pólipos Nasales/tratamiento farmacológico , Pólipos Nasales/cirugía , Rociadores Nasales , Sinusitis/tratamiento farmacológico , Sinusitis/cirugía , Irrigación Terapéutica
12.
Laryngoscope ; 130(3): 567-574, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31050824

RESUMEN

OBJECTIVES/HYPOTHESIS: To evaluate the trend and factors associated with surgical management of orbital cellulitis. STUDY DESIGN: Retrospective database study. METHODS: Study using the State Inpatient Databases (SIDs) from 2008 to 2015. Patients with an International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) diagnosis code for orbital cellulitis were identified in the SIDs for the following states: Arkansas, Florida, Iowa, Maryland, Nebraska, New York, and Wisconsin. Surgery was defined as an ICD-9-CM procedure code for orbitotomy and/or functional endoscopic sinus surgery. The trend of surgery over time was evaluated using the Cochran-Armitage test. Multivariable logistic regression models were used to identify patient- and hospital-level factors associated with surgery. RESULTS: From 2008 to 2013, the number of hospitalizations for orbital cellulitis ranged from 1,349 to 1,574, but declined to 865 in 2014. From 2008 to 2015, the number of surgeries ranged from 103 to 154. For children (n = 3,041), age, ophthalmologic comorbidity, and conjunctival edema were significantly associated with surgery, whereas for adults (n = 7,961), male gender, private insurance, optic neuritis, and cranial nerves III/VI/VI palsy were associated with surgery. CONCLUSIONS: Although the number of inpatient hospitalizations for orbital cellulitis has markedly declined, the number of surgeries for orbital cellulitis has remained fairly stable, leading to an observed higher proportion of hospitalized patients undergoing surgery. Future directions include extending the time frame to the present day to assess current rates of hospitalization and surgery. Knowledge of surgical trends and patient- and hospital-level characteristics associated with surgery may help improve management guidelines for and understanding of this vision-threatening disease. LEVEL OF EVIDENCE: NA Laryngoscope, 130:567-574, 2020.


Asunto(s)
Procedimientos Quirúrgicos Oftalmológicos/tendencias , Celulitis Orbitaria/cirugía , Adolescente , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Arkansas/epidemiología , Niño , Preescolar , Bases de Datos Factuales , Femenino , Florida/epidemiología , Hospitalización/tendencias , Humanos , Lactante , Pacientes Internos/estadística & datos numéricos , Iowa/epidemiología , Masculino , Maryland/epidemiología , Persona de Mediana Edad , Nebraska/epidemiología , New York/epidemiología , Estudios Retrospectivos , Factores Sexuales , Wisconsin/epidemiología , Adulto Joven
13.
Laryngoscope ; 130(3): 590-596, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31112326

RESUMEN

OBJECTIVE: Sinonasal inverted papillomas (IP) are benign neoplasms with a propensity for local recurrence. Many risk factors are reported, with little consistency between studies. This study aimed to comprehensively assess for demographic, imaging, histopathologic, and intraoperative risk factors for recurrence. METHODS: We performed a single-center retrospective cohort study of patients with pathologically diagnosed IP without malignancy who underwent surgical resection between 1997 and 2018. Eligible patients were identified through a database maintained by the Department of Pathology. Logistic regression identified variables associated with recurrence, and conjunctive consolidation was performed to create a predictive model. RESULTS: Of 76 subjects, 37% (n = 28) had recurrence. Median follow-up and time to recurrence were 2.9 (range 0.5-21.1) and 1.7 (range 0.2-13.0) years, respectively. Confirmed negative margins on histology were protective (odds ratio [OR] 0.25, 95% confidence interval [CI] 0.08-0.85). Frontal sinus involvement (adjusted odds ratio [aOR] 5.83, 95% CI 1.20-28.37), incomplete resection (aOR 9.67, 95% CI 2.24-41.72), and presence of dysplasia (aOR 4.38, 95% CI 1.01-19.10) were significantly associated with recurrence on multivariable analysis. A three-level composite recurrence risk staging system was created by consolidating the above three variables. The recurrence risks of composite stage I, II, and III disease were 20%, 38%, and 100%, respectively. No demographic, imaging, staging, or surgical approach variables were associated with recurrence. CONCLUSION: Frontal sinus involvement, incomplete resection, and dysplasia were significant risk factors for IP recurrence, whereas confirmed negative margins were protective. Creation of a composite staging system using the above variables may allow for risk stratification and a patient-specific approach to postoperative IP management. LEVEL OF EVIDENCE: 3 Laryngoscope, 130:590-596, 2020.


Asunto(s)
Recurrencia Local de Neoplasia/etiología , Papiloma Invertido/patología , Neoplasias de los Senos Paranasales/patología , Adulto , Anciano , Endoscopía/métodos , Femenino , Seno Frontal/patología , Humanos , Periodo Intraoperatorio , Masculino , Márgenes de Escisión , Persona de Mediana Edad , Oportunidad Relativa , Papiloma Invertido/cirugía , Neoplasias de los Senos Paranasales/cirugía , Estudios Retrospectivos , Factores de Riesgo
14.
Otol Neurotol ; 39(10): e1137-e1142, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-30239435

RESUMEN

OBJECTIVES: A mixed reality (MR) headset that enables three-dimensional (3D) visualization of interactive holograms anchored to specific points in physical space was developed for use with lateral skull base anatomy. The objectives of this study are to: 1) develop an augmented reality platform using the headset for visualization of temporal bone structures, and 2) measure the accuracy of the platform as an image guidance system. METHODS: A combination of semiautomatic and manual segmentation was used to generate 3D reconstructions of soft tissue and bony anatomy of cadaver heads and temporal bones from 2D computed tomography images. A Mixed-Reality platform was developed using C# programming to generate interactive 3D holograms that could be displayed in the HoloLens headset. Accuracy of visual surface registration was determined by target registration error between seven predefined points on a 3D holographic skull and 3D printed model. RESULTS: Interactive 3D holograms of soft tissue, bony anatomy, and internal ear structures of cadaveric models were generated and visualized in the MR headset. Software user interface was developed to allow for user control of the virtual images through gaze, voice, and gesture commands. Visual surface point matching registration was used to align and anchor holograms to physical objects. The average target registration error of our system was 5.76 mm ±â€Š0.54. CONCLUSION: In this article, we demonstrate that an MR headset can be applied to display interactive 3D anatomic structures of the temporal bone that can be overlaid on physical models. This technology has the potential to be used as an image guidance tool during anatomic dissection and lateral skull base surgery.


Asunto(s)
Holografía/métodos , Procedimientos Neuroquirúrgicos/métodos , Base del Cráneo/anatomía & histología , Programas Informáticos , Cirugía Asistida por Computador/métodos , Cadáver , Holografía/instrumentación , Humanos , Procedimientos Neuroquirúrgicos/instrumentación , Base del Cráneo/cirugía , Cirugía Asistida por Computador/instrumentación , Tomografía Computarizada por Rayos X
15.
Am J Nephrol ; 46(5): 429-438, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-29130990

RESUMEN

BACKGROUND: The objective of this study was to investigate the role of bone morphogenetic protein (BMP) signal transduction in the pathogenesis of calciphylaxis. METHODS: Skin biopsy specimens were obtained from 18 patients with, and 12 patients without, calciphylaxis. Tissue sections were stained with antibodies directed against BMP effector proteins phosphorylated-SMAD (p-SMAD) 1/5/9, inhibitor of DNA 1 (Id1), inhibitor of DNA 3 (Id3), and Runx2. The intensity of staining was scored semi-quantitatively as strong versus weak or absent. RESULTS: Of the 18 patients with calciphylaxis (mean age: 59 ± 8 years), 9 were women and 15 had end-stage renal disease. Of the 12 control patients (mean age: 57 ± 10 years), 8 were women and 8 had end-stage renal disease. Strong staining for p-SMAD 1/5/9 was detected in blood vessels from all calciphylaxis patients. In 1 patient with calciphylaxis, strong staining for p-SMAD 1/5/9 was detected in a blood vessel that did not have evidence of calcification. Id1 and Id3 immunoreactivity was detected in blood vessels from all 12 patients with calciphylaxis that were tested. Runx2 staining was detected in all 6 patients with calciphylaxis who were tested. p-SMAD 1/5/9 immunoreactivity was weak or absent in blood vessels of 10 of the 12 control samples. CONCLUSIONS: The BMP signal transduction pathway is activated in the cutaneous vasculature of calciphylaxis patients. The ability to detect p-SMAD 1/5/9, Id1, and Id3 in cutaneous vasculature may assist in the diagnosis of calciphylaxis. As BMP signaling inhibitors become available, this pathway may serve as a future therapeutic target for calciphylaxis.


Asunto(s)
Proteínas Morfogenéticas Óseas/metabolismo , Calcifilaxia/metabolismo , Fallo Renal Crónico/metabolismo , Transducción de Señal , Piel/irrigación sanguínea , Adulto , Anciano , Biopsia , Calcifilaxia/etiología , Calcifilaxia/patología , Femenino , Humanos , Fallo Renal Crónico/complicaciones , Masculino , Persona de Mediana Edad , Fosforilación , Piel/patología
16.
Int Forum Allergy Rhinol ; 7(5): 467-473, 2017 05.
Artículo en Inglés | MEDLINE | ID: mdl-28236359

RESUMEN

BACKGROUND: The clinical association between cystic fibrosis (CF) and chronic rhinosinusitis (CRS) is well known. Studies have identified several non-CF transmembrane conductance regulator single nucleotide polymorphisms (SNPs) associated with disease severity in CF patients. We hypothesized that prevalence of these SNPs would be different between CRS patients and age/gender-matched non-CRS controls. METHODS: This is a targeted SNP study of 1231 CRS patients identified through a large university hospital database who were compared with 8796 age- and gender-matched controls without a history of rhinitis, sinusitis, allergies, or asthma. Prevalence of 5 relevant SNPs was compared between groups, with p < 0.05 considered significant. Stratification by race and gender was performed among groups when statistically appropriate. RESULTS: CRS patients exhibited a statistically significant (p = 0.036) lower prevalence of rs12883884 (associated with an ion transporter) compared with controls. This association was lost when patients were stratified by race. CRS patients manifested a greater prevalence of rs1403543 (chromosome 23) in both Caucasian and African American subgroups (p = 0.036 and p = 0.026, respectively). Statistical significance disappeared among Caucasians when stratified by gender, but persisted among African American women (p = 0.047). rs12188164 and rs12793173 were both more prevalent in African Americans with CRS than controls (p = 0.042 and p = 0.020, respectively). A trend was also observed for decreased prevalence of rs12883884 in CRS patients compared with controls in the African American subgroup (p = 0.086). CONCLUSION: The identified SNPs were differentially prevalent in CRS compared with control groups, with some variability as a function of race and gender. Further research is required to confirm these findings and elucidate clinical significance.


Asunto(s)
Fibrosis Quística/genética , Polimorfismo de Nucleótido Simple , Rinitis/genética , Sinusitis/genética , Adulto , Anciano , Anciano de 80 o más Años , Enfermedad Crónica , Femenino , Humanos , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Proyectos Piloto
17.
Laryngoscope ; 127(4): 945-949, 2017 04.
Artículo en Inglés | MEDLINE | ID: mdl-27378721

RESUMEN

OBJECTIVES/HYPOTHESIS: Determine predictive patient characteristics that guide the decision to proceed with surgical management of tongue-based airway obstruction (TBAO) in Pierre Robin sequence (PRS) patients. STUDY DESIGN: Retrospective review of PRS patients between 2005 and 2014 requiring observation in the neonatal intensive care unit (NICU). METHODS: Patient charts were reviewed for prenatal diagnoses, clinical course, and need for surgical intervention (tracheotomy or mandibular distraction osteogenesis), and the nonsurgical and surgical group were compared with a logistic regression model. RESULTS: Thirty-eight PRS patients who were identified with TBAO and required NICU observation had an average follow-up of 5.4 years. Associated anomalies identified in the PRS patients included neurologic disease (n = 6), renal abnormalities (n = 5), limb abnormalities (n = 4), and cardiac abnormalities (n = 12). Nonsurgical management of PRS TBAO included side (n = 12)/stomach positioning (n = 15), oral airway (n = 6), nasopharyngeal airway (NPA) (n = 14), and intubation (n = 12). Surgical intervention occurred in 13 patients, with tracheotomy in eight due to unstable airway, and mandible distraction in five due to NPA dependence. Factors with significant uncontrolled correlations with the need for surgical airways included presence of cardiac disease (P = .03), cardiac disease severity (P = .03), neurologic disease (P = .01), and continuous positive airway pressure (CPAP)/bilevel positive airway pressure (BiPAP) use (P = .006). Further, stepwise regression showed strong predictive value for CPAP/BiPAP use (odds ratio [OR]: 10.43) and presence of neurological disease (OR: 9.16). PRS TBAO patients required multiple modalities of noninvasive surgical intervention to stabilize their airway. CONCLUSIONS: This study identified patient characteristics predictive of progression to a surgical airway to address TBAO, which may decrease healthcare utilization and improve quality of life for these families. LEVEL OF EVIDENCE: 4 Laryngoscope, 127:945-949, 2017.


Asunto(s)
Obstrucción de las Vías Aéreas/cirugía , Toma de Decisiones Clínicas , Síndrome de Pierre Robin/diagnóstico , Síndrome de Pierre Robin/cirugía , Manejo de la Vía Aérea/métodos , Obstrucción de las Vías Aéreas/diagnóstico , Estudios de Cohortes , Progresión de la Enfermedad , Femenino , Estudios de Seguimiento , Humanos , Recién Nacido , Unidades de Cuidado Intensivo Neonatal , Intubación Intratraqueal , Tiempo de Internación , Modelos Logísticos , Masculino , Monitoreo Fisiológico/métodos , Oportunidad Relativa , Selección de Paciente , Valor Predictivo de las Pruebas , Estudios Retrospectivos , Medición de Riesgo , Índice de Severidad de la Enfermedad
18.
J Neuroophthalmol ; 37(3): 311-313, 2017 09.
Artículo en Inglés | MEDLINE | ID: mdl-27548636

RESUMEN

Endodermal cysts, also known as neurogenic, neuroenteric, foregut, bronchogenic, respiratory, epithelial, teratomatous, or gastrocytoma cysts, can be found in the central nervous system, predominantly in the subarachnoid space of the cervical and thoracic spinal cord. We describe a child with an endodermal cyst of the third nerve and highlight neuroimaging findings, pathological correlation, clinical course, and patient management.


Asunto(s)
Quistes del Sistema Nervioso Central/diagnóstico , Neoplasias de los Nervios Craneales/diagnóstico , Imagen por Resonancia Magnética/métodos , Enfermedades del Nervio Oculomotor/diagnóstico , Preescolar , Diagnóstico Diferencial , Femenino , Humanos
19.
J Neuroophthalmol ; 37(2): 126-132, 2017 06.
Artículo en Inglés | MEDLINE | ID: mdl-27787461

RESUMEN

Fulminant idiopathic intracranial hypertension (FIIH) is a subtype of idiopathic intracranial hypertension (IIH) characterized by rapid, severe, progressive vision loss. Surgical intervention is often performed either as a cerebrospinal fluid (CSF) shunt procedure or an optic nerve sheath fenestration or, at times, both. These surgical procedures carry a significant risk of morbidity and failure. We present 2 patients in whom a temporary lumbar drain was successfully used in the management of medically undertreated pediatric FIIH, and circumvented the need for surgical intervention.


Asunto(s)
Derivaciones del Líquido Cefalorraquídeo/métodos , Seudotumor Cerebral/cirugía , Baja Visión/etiología , Agudeza Visual , Enfermedad Aguda , Adolescente , Femenino , Humanos , Seudotumor Cerebral/complicaciones , Seudotumor Cerebral/diagnóstico , Células Ganglionares de la Retina/patología , Tomografía de Coherencia Óptica , Baja Visión/diagnóstico , Baja Visión/fisiopatología
20.
Int J Pediatr Otorhinolaryngol ; 88: 34-7, 2016 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-27497383

RESUMEN

OBJECTIVE: The purpose of this study was to identify prognostic factors associated with improved speech outcomes following surgical correction for velopharyngeal insufficiency (VPI) in pediatric patients with 22q11.2 deletion syndrome (22q11DS). METHODS: Eighteen patients were identified via retrospective chart review of patients with 22q11DS between 2005 and 2014. Patient characteristics, medical histories, associated comorbidities, surgical procedures, and pre- and postoperative perceptual hypernasality (subjectively rated 1-5 with 5 being the most severe) were gathered for each patient. RESULTS: 12 patients (67%) experienced improvement in hypernasality following corrective surgery for VPI. Higher severity of hypernasality preoperatively was found to be indicative of a lower chance of improvement with VPI surgery. Of 8 patients with a preoperative hypernasality score of 5, 3 (38%) showed improvement in hypernasality postoperatively, while 9 out of 10 (90%) of patients with a preoperative hypernasality score less than 5 showed postoperative improvement. Females were also found to have worse speech outcomes compared to males. CONCLUSION: 22q11DS patients presenting with severely hypernasal speech preoperatively are less likely to show improvement in hypernasality following corrective surgery for VPI. Those patients with moderate hypernasality are most likely to benefit from surgery.


Asunto(s)
Síndrome de DiGeorge/complicaciones , Trastornos del Habla/cirugía , Insuficiencia Velofaríngea/cirugía , Niño , Femenino , Humanos , Masculino , Evaluación del Resultado de la Atención al Paciente , Pronóstico , Estudios Retrospectivos , Trastornos del Habla/etiología , Insuficiencia Velofaríngea/etiología
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