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1.
Fam Med ; 56(5): 308-312, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38506704

RESUMEN

BACKGROUND AND OBJECTIVES: Despite the increasing number of sexual and gender minority (SGM) patients in the United States and designation by the National Institutes of Health as a population with health disparities, available tools are lacking to train medical students on appropriate care for this population. Therefore, we developed and implemented a novel, self-directed, 2-week online elective for undergraduate medical students. The objective of our study was to evaluate the effectiveness of this course in increasing medical students' competency and confidence in caring for SGM patients. METHODS: We developed the curriculum using Kern's six-step model for curriculum development. We created anonymous pre- and postcourse surveys using the standardized Lesbian, Gay, Bisexual, Transgender Development of Clinical Skills Survey (LGBT-DOCSS) questionnaire to assess cultural competence, as well as a 5-point Likert-scored survey to assess self-perceived confidence in the care of SGM patients. We tested the statistical significance in pre- and postsurvey scores via paired sample t tests in R (R Project for Statistical Computing). RESULTS: We found statistically significant increases in the LGBT-DOCSS categories of clinical preparedness (P<.001), basic knowledge (P<.001), overall competency (P<.001), and self-perceived confidence in caring for SGM patients (P<.001, N=33). CONCLUSIONS: The course represents an effective solution for increasing medical students' self-perceived competence and confidence in caring for SGM patients. The flexibility and ease of the online format may be appealing to both students and institutions, and ultimately can serve to increase access to crucial content that is largely absent from current undergraduate medical education. Future evaluation efforts will be required to determine whether the course impacts long-term behavioral changes and outcomes.


Asunto(s)
Competencia Clínica , Curriculum , Educación de Pregrado en Medicina , Minorías Sexuales y de Género , Estudiantes de Medicina , Humanos , Estudiantes de Medicina/psicología , Encuestas y Cuestionarios , Femenino , Masculino , Competencia Cultural/educación , Estados Unidos , Educación a Distancia , Internet , Evaluación de Programas y Proyectos de Salud
2.
Clin Pediatr (Phila) ; : 99228231219499, 2023 Dec 22.
Artículo en Inglés | MEDLINE | ID: mdl-38135918

RESUMEN

Transgender and gender-diverse (TGD) adolescents experience limited access to gender-affirming care (GAC) and information and use social media platforms for informational and social support. We conducted conventional content analysis of posts on the platform, Tumblr and applied univariate statistics to characterize health and wellness themes represented by this content. Content was predominantly transmasculine-relevant. Posts addressing the trans health care paradigm often co-occurred with content referencing affirmation logs, the physical and emotional impact of affirmation, surgery, and unspecified medical interventions. Gender-affirming hormone therapy was the most prevalent intervention referenced in posts related to non-professional/non-licensed medical care and advice requests. Transgender and gender-diverse youth-serving individuals can use this information to mitigate harm, enhance patient education, and improve the overall well-being of TGD youth. Further research is needed to characterize the effect of content encountered on social media on pediatric patient experiences and on outcomes of GAC.

3.
Transl Androl Urol ; 12(9): 1390-1396, 2023 Sep 30.
Artículo en Inglés | MEDLINE | ID: mdl-37814700

RESUMEN

Background: An increasing number of gender diverse individuals are presenting for gender affirming care. An option for genital gender affirming surgery (gGAS) in transmasculine individuals is metoidioplasty, creating a small neophallus from enlarged clitoral tissue following prolonged testosterone exposure. The goal of this study is to understand factors which contribute to greater exposed neophallus length following metoidioplasty. Methods: We performed a retrospective chart review on patients presenting to a single academic institution who underwent a metoidioplasty. All operations were performed using the Belgrade technique with or without urethral lengthening depending on patient preference. Results: Twenty-seven patients underwent metoidioplasty from 2017-2022. Sixteen had recorded stretched clitoral length (pre-operatively) and exposed neophallus length (post-operatively). The median length of time on testosterone therapy was 4.6 years. The median stretched clitoral length was 5.8 cm, and exposed neophallus length was 6 cm. There was a strong correlation between pre-operative length and post-operative length (ρ=0.9; P<0.0001). There were no correlations between pre-operative length or exposed neophallus length and BMI (ρ=-0.02, P=0.93; ρ=0.05, P=0.83, respectively). Time on testosterone does not correlate with stretched clitoral length nor exposed neophallus length (ρ=-0.28, P=0.15; ρ=-0.35, P=0.18, respectively). Conclusions: Patients considering metoidioplasty often wonder how large their neophallus will be. We found that patients can expect exposed neophallus length to be about 0.6 cm longer than their pre-operative stretched clitoral length. No evidence of association of time on testosterone nor BMI with exposed neophallus length was found. This information is crucial for gender diverse patients to make informed decisions about gGAS.

4.
J Pediatr Urol ; 19(5): 652.e1-652.e6, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37394305

RESUMEN

INTRODUCTION: Adolescent varicocele is a common urologic condition with a spectrum of outcomes, leading to variations in management. Testicular hypotrophy is a common indication for surgery Routine monitoring may be an appropriate form of management for many adolescents with testicular hypotrophy, as studies have shown that a large proportion of these patients may experience catch-up growth of the ipsilateral testis. Furthermore, there are few longitudinal studies which have correlated patient specific factors to catch-up growth. We aimed to determine the frequency of testicular catch up-growth in adolescents with varicocele while also examining if patient specific factors such as BMI, BMI percentile, or height correlated with testicular catch-up growth. METHODS: A retrospective chart review found adolescent patients who presented to our institution with varicocele from 1997 to 2019. Patients between the ages of 9 and 20 years with left-sided varicocele, a clinically significant testicular size discrepancy, and at least two scrotal ultrasounds at least one year apart were included in analysis. Testicular size discrepancy of greater than 15% on scrotal ultrasound was considered clinically significant. Testicular size was estimated in volume (mL) via the Lambert formula. Statistical relationships between testicular volume differential and height, body mass index (BMI), and age were described with Spearman correlation coefficients (ρ). RESULTS: 40 patients had a testicular volume differential of greater than 15% at some point during their clinical course and were managed non-operatively with observation and serial testicular ultrasounds. On follow-up ultrasound, 32/40 (80%) had a testicular volume differential of less than 15%, with a mean age of catch up growth at 15 years (SD 1.6, range 11-18 years). There were no significant correlations between baseline testicular volume differential and baseline BMI (ρ = 0.00, 95% CI [-0.32, 0.32]), baseline BMI percentile (ρ = 0.03, 95% CI [-0.30, 0.34]), or change in height over time (ρ = 0.05, 95% CI [-0.36, 0.44]). DISCUSSION: The majority of adolescents with varicocele and testicular hypotrophy exhibited catch-up growth with observation, suggesting that surveillance is an appropriate form of management in many adolescents. These findings are consistent with previous studies and further indicate the importance of observation for the adolescent varicocele. Further research is warranted to determine patient specific factors that correlate with testicular volume differential and catch up growth in the adolescent varicocele.


Asunto(s)
Enfermedades Testiculares , Varicocele , Masculino , Humanos , Adolescente , Niño , Adulto Joven , Adulto , Varicocele/diagnóstico por imagen , Varicocele/terapia , Estudios Retrospectivos , Escroto , Testículo/cirugía
5.
J Surg Res ; 283: 313-323, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36423481

RESUMEN

INTRODUCTION: Surgical repair of pectus excavatum and carinatum in children has historically been associated with severe postoperative pain and prolonged hospitalization. Enhanced Recovery After Surgery (ERAS) is a multidisciplinary, multimodal approach designed to fast-track surgical care. However, obstacles to implementation have led to very few within pediatric surgery. The aim of this study is to outline the process of development and implementation of an ERAS protocol for pectus surgical repair using fundamental principles of implementation science. METHODS: A multidisciplinary team of providers worked collaboratively to develop an ERAS protocol for surgical repair of pectus excavatum and carinatum and methods for identifying eligible patients. The surgical champion collaborated with all end users to review and revise the ERAS protocol, assessing all foreseeable barriers and facilitators prior to implementation. RESULTS: Our entire pediatric surgery team, nurses at every stage (clinic/preoperative/recovery/floor), physical therapy, and information technology contributed to the creation and implementation of an ERAS protocol with seven phases of care. The finalized version was implemented by end users focusing on four main areas: pain control, ambulation, diet, and education. Barriers and facilitators were continually addressed with an iterative process to improve the success of implementation. CONCLUSIONS: This is one of the first studies in children which details the step-by-step process of developing and implementing an ERAS protocol for pectus excavatum and carinatum. The process of development and implementation of an ERAS protocol as outlined in this manuscript can serve as a model for future ERAS protocols in pediatric surgery.


Asunto(s)
Recuperación Mejorada Después de la Cirugía , Tórax en Embudo , Especialidades Quirúrgicas , Niño , Humanos , Tórax en Embudo/cirugía , Ciencia de la Implementación , Dolor Postoperatorio , Tiempo de Internación
6.
Otol Neurotol ; 43(8): e872-e879, 2022 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-35970165

RESUMEN

HYPOTHESIS: We hypothesized that children with cochlear implants (CIs) who demonstrate cross-modal reorganization by vision also demonstrate cross-modal reorganization by somatosensation and that these processes are interrelated and impact speech perception. BACKGROUND: Cross-modal reorganization, which occurs when a deprived sensory modality's cortical resources are recruited by other intact modalities, has been proposed as a source of variability underlying speech perception in deaf children with CIs. Visual and somatosensory cross-modal reorganization of auditory cortex have been documented separately in CI children, but reorganization in these modalities has not been documented within the same subjects. Our goal was to examine the relationship between cross-modal reorganization from both visual and somatosensory modalities within a single group of CI children. METHODS: We analyzed high-density electroencephalogram responses to visual and somatosensory stimuli and current density reconstruction of brain activity sources. Speech perception in noise testing was performed. Current density reconstruction patterns were analyzed within the entire subject group and across groups of CI children exhibiting good versus poor speech perception. RESULTS: Positive correlations between visual and somatosensory cross-modal reorganization suggested that neuroplasticity in different sensory systems may be interrelated. Furthermore, CI children with good speech perception did not show recruitment of frontal or auditory cortices during visual processing, unlike CI children with poor speech perception. CONCLUSION: Our results reflect changes in cortical resource allocation in pediatric CI users. Cross-modal recruitment of auditory and frontal cortices by vision, and cross-modal reorganization of auditory cortex by somatosensation, may underlie variability in speech and language outcomes in CI children.


Asunto(s)
Corteza Auditiva , Implantación Coclear , Implantes Cocleares , Sordera , Percepción del Habla , Corteza Auditiva/fisiología , Niño , Sordera/cirugía , Humanos , Percepción del Habla/fisiología , Percepción Visual/fisiología
7.
Eur J Cancer Care (Engl) ; 31(6): e13677, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-35942930

RESUMEN

OBJECTIVE: To understand experiences of patients with genitourinary cancer who experienced delayed cancer care due to the COVID-19 pandemic. METHODS: We conducted a mixed methods study with an explanatory sequential design. Qualitative findings are reported here. Patients with muscle invasive bladder, advanced prostate or kidney cancer were eligible. Participants were selected for interviews if they self-reported low (0-3/10) or high (6-10/10) levels of distress on a previous survey. Participants were interviewed about their experiences. Interviews were transcribed, coded and categorised using thematic data analysis methodology. RESULTS: Eighteen patients were interviewed. Seven had prostate cancer, six bladder cancer and five kidney cancer. Six themes were derived from the interviews: (1) arriving at cancer diagnosis was hard enough, (2) response to treatment delay, (3) labelling cancer surgery as elective, (4) fear of COVID-19 infection, (5) quality of patient-provider relationship and communication and (6) what could have been done differently. CONCLUSION: These findings offer insight into the concerns of patients with genitourinary cancers who experienced treatment delays due to COVID-19. This information can be applied to support patients with cancers more broadly, should treatment delays occur in the future.


Asunto(s)
COVID-19 , Neoplasias Renales , Neoplasias Urogenitales , Neoplasias Urológicas , Urología , Masculino , Humanos , Pandemias , Neoplasias Urológicas/terapia , Neoplasias Urogenitales/terapia , Investigación Cualitativa , Neoplasias Renales/terapia
8.
Ear Hear ; 43(5): 1426-1436, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35245922

RESUMEN

OBJECTIVES: The use of objective measures in cochlear implant (CI) mapping, has greatly contributed to the refinement of the setting of audible and comfortable stimulation levels, which serve as the basis of the mapping process, especially in cases of infants and young children. In addition, objective measures can also confirm the integrity of the CI system. Current CI objective measures mainly reflect neural activity from the auditory nerve and brainstem site. An objective cortical CI measure that reflects directly central auditory activity is greatly needed, especially since it is closely related to CI outcomes in both children and adults. Recording the brain activity currently requires an external evoked potential (EP) system including scalp electrodes, rendering it impractical for widespread clinical use. This study aimed to assess the feasibility of recording cortical auditory evoked potentials (CAEPs) directly and solely through the cochlear implant in response to external acoustic stimulation in the non-implanted ear. DESIGN: A total of nine CI users (four females and five males) participated, including seven post-lingual adults (23 to 72 years), and two pediatric cases, one teenager (15 years), and one child (8 years)-both pre-lingual. All participants had a residual hearing in the ear contralateral to the ear with CI. CAEPs were recorded in the implanted ear in response to acoustic stimulation of the non-implanted ear, consisting of a brief tonal stimulus at comfortable listening levels. Recordings used an intracranial montage consisting of an intracochlear apical electrode (active) and one of the two ( case and ring ) extra-cochlear implanted electrodes serving as reference electrodes. The CI CAEPs were compared with a single-channel conventional CAEP recording obtained simultaneously via scalp electrodes (Fz-mastoid) using a standard EP system and an external trigger from the CI system. Statistical comparisons were made between the CI and the scalp recorded CAEPs and for differences between the CI CAEP measures acquired using the ring and the case as the reference electrode. RESULTS: CAEPs recorded directly and solely through the CI were equivalent to the standard scalp recorded CAEP responses. CAEP responses acquired using the case electrode as the reference were highly correlated in terms of morphology, latencies, and amplitudes of the CAEP components. The CI CAEP latencies of the two pediatric cases were consistent with their normal developed age group and delayed relative to adult CAEP latencies, as expected. CONCLUSIONS: This study demonstrated the feasibility of recording long latency CAEPs directly and solely through CI in adults with residual hearing, in response to acoustic stimulation of the non-implanted ear. The CI CAEPs closely resembled the CAEPs recorded simultaneously by an external EP system and via scalp electrodes. The ability to record directly from the implant, without the need of an external recording system, presents an innovative method with many clinical and research implications.


Asunto(s)
Implantación Coclear , Implantes Cocleares , Estimulación Acústica/métodos , Adolescente , Adulto , Niño , Preescolar , Potenciales Evocados Auditivos/fisiología , Estudios de Factibilidad , Femenino , Humanos , Lactante , Masculino
9.
Urology ; 160: 40-45, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34863792

RESUMEN

OBJECTIVE: To understand perspectives of urology program directors (PDs) regarding the management and screening of resident mental health and burnout. METHODS: After piloting and survey validation, an IRB-exempt 14 question survey was distributed to PDs of all 145 ACGME accredited urology residency programs. Statistical significance was determined using an alpha value of 0.05 and response plurality was determined by non-overlapping 95% confidence intervals. RESULTS: A total of 72 PDs completed the survey (response rate = 49.6%). The majority of PDs (59.7%) do not use standardized screening for resident burnout or mental health. A statistically significant proportion of PDs agreed to implementing periodic mental health (75.0%, 95% CI [65.0%-75.0%]) and burnout (87.6%, 95% CI [79.9%-95.1%]) screening. Female PDs were more likely to agree to implementing mental health screening compared to male PDs (female=94.4% vs male=68.5%; P =.03). If mental health screening was implemented and a resident tested positive, PDs were most concerned about harm to a patient (72.2%, 95% CI [61.9-82.6]) and implications of a positive screen on future licensing and practice (55.6%, 95% CI [44.1-67.0]). CONCLUSION: Although the majority of urology PDs believe residents should be periodically screened for burnout and mental health, most do not currently screen their trainees. If mental health screening was implemented, PDs expressed concern about patient harm and challenges associated with future licensing. Our survey results suggest opportunities for improving management of resident burnout and mental health.


Asunto(s)
Agotamiento Profesional , Internado y Residencia , Urología , Agotamiento Profesional/epidemiología , Agotamiento Profesional/prevención & control , Femenino , Humanos , Masculino , Salud Mental , Encuestas y Cuestionarios , Urología/educación
10.
Front Neurosci ; 14: 93, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32132893

RESUMEN

Age-related hearing loss (ARHL) is associated with cognitive decline as well as structural and functional brain changes. However, the mechanisms underlying neurocognitive deficits in ARHL are poorly understood and it is unclear whether clinical treatment with hearing aids may modify neurocognitive outcomes. To address these topics, cortical visual evoked potentials (CVEPs), cognitive function, and speech perception abilities were measured in 28 adults with untreated, mild-moderate ARHL and 13 age-matched normal hearing (NH) controls. The group of adults with ARHL were then fit with bilateral hearing aids and re-evaluated after 6 months of amplification use. At baseline, the ARHL group exhibited more extensive recruitment of auditory, frontal, and pre-frontal cortices during a visual motion processing task, providing evidence of cross-modal re-organization and compensatory cortical neuroplasticity. Further, more extensive cross-modal recruitment of the right auditory cortex was associated with greater degree of hearing loss, poorer speech perception in noise, and worse cognitive function. Following clinical treatment with hearing aids, a reversal in cross-modal re-organization of auditory cortex by vision was observed in the ARHL group, coinciding with gains in speech perception and cognitive performance. Thus, beyond the known benefits of hearing aid use on communication, outcomes from this study provide evidence that clinical intervention with well-fit amplification may promote more typical cortical organization and functioning and provide cognitive benefit.

11.
Hearing Balance Commun ; 16(1): 1-12, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-32953369

RESUMEN

OBJECTIVE: Auditory Neuropathy Spectrum Disorder (ANSD) affects approximately 5-15% of children with sensorineural hearing loss. ANSD is characterized by the presence of otoacoustic emissions (OAE) and an absent or abnormal auditory brainstem response (ABR). The purpose of this study was to investigate the prognostic value of slow-rate ABR in predicting the auditory cortical development and auditory speech perception outcomes in case studies of children with ANSD. DESIGN: ABR waveform characteristics were collected at slow stimulation rates (5.1 clicks/second) and a fast stimulation rates (>11-31.1 clicks/second, rates typically used in a clinical setting) in 3 case reports of children with ANSD. P1 CAEP responses and measures of auditory speech perception using the Infant Toddler Meaningful Auditory Integration Scale (IT-MAIS) were also collected in these children. Retrospective analysis was performed to evaluate the prognostic value of slow- versus fast-rate ABR in predicting P1 CAEP responses and auditory speech perception outcomes in these children. STUDY SAMPLE: Participants included case reports of 3 pediatric participants with a clinical diagnosis of ANSD. RESULTS: Slow-rate ABR did not elicit significant improvements in waveform morphology compared to fast-rate ABR. P1 CAEP results were present in 2 out of 3 cases and were consistent with auditory speech perception outcomes. CONCLUSIONS: Even when ABR stimulation rates were slowed, ABR responses in these children with ANSD did not display any characteristic or replicable pattern, and ABR responses were not predictive of cortical auditory maturation or behavioral performance. In contrast, P1 CAEP responses provided valuable information regarding the maturational status of the auditory cortex and P1 CAEP responses were consistent with behavioral measures of auditory speech perception. Overall, results highlight the high prognostic value of P1 CAEP testing when used in conjunction with behavioral measures of auditory speech perception in children with ANSD.

12.
Hear Res ; 343: 191-201, 2017 01.
Artículo en Inglés | MEDLINE | ID: mdl-27613397

RESUMEN

This review explores cross-modal cortical plasticity as a result of auditory deprivation in populations with hearing loss across the age spectrum, from development to adulthood. Cross-modal plasticity refers to the phenomenon when deprivation in one sensory modality (e.g. the auditory modality as in deafness or hearing loss) results in the recruitment of cortical resources of the deprived modality by intact sensory modalities (e.g. visual or somatosensory systems). We discuss recruitment of auditory cortical resources for visual and somatosensory processing in deafness and in lesser degrees of hearing loss. We describe developmental cross-modal re-organization in the context of congenital or pre-lingual deafness in childhood and in the context of adult-onset, age-related hearing loss, with a focus on how cross-modal plasticity relates to clinical outcomes. We provide both single-subject and group-level evidence of cross-modal re-organization by the visual and somatosensory systems in bilateral, congenital deafness, single-sided deafness, adults with early-stage, mild-moderate hearing loss, and individual adult and pediatric patients exhibit excellent and average speech perception with hearing aids and cochlear implants. We discuss a framework in which changes in cortical resource allocation secondary to hearing loss results in decreased intra-modal plasticity in auditory cortex, accompanied by increased cross-modal recruitment of auditory cortices by the other sensory systems, and simultaneous compensatory activation of frontal cortices. The frontal cortices, as we will discuss, play an important role in mediating cognitive compensation in hearing loss. Given the wide range of variability in behavioral performance following audiological intervention, changes in cortical plasticity may play a valuable role in the prediction of clinical outcomes following intervention. Further, the development of new technologies and rehabilitation strategies that incorporate brain-based biomarkers may help better serve hearing impaired populations across the lifespan.


Asunto(s)
Envejecimiento , Corteza Auditiva/crecimiento & desarrollo , Percepción Auditiva , Sordera/fisiopatología , Sordera/psicología , Audición , Plasticidad Neuronal , Presbiacusia/fisiopatología , Presbiacusia/psicología , Adaptación Psicológica , Adolescente , Adulto , Factores de Edad , Envejecimiento/psicología , Animales , Niño , Desarrollo Infantil , Preescolar , Implantación Coclear/instrumentación , Implantes Cocleares , Cognición , Señales (Psicología) , Sordera/diagnóstico , Sordera/rehabilitación , Audífonos , Humanos , Presbiacusia/diagnóstico , Presbiacusia/rehabilitación , Percepción Visual , Adulto Joven
13.
Brain Sci ; 6(1)2016 Jan 26.
Artículo en Inglés | MEDLINE | ID: mdl-26821049

RESUMEN

We review evidence for cross-modal cortical re-organization in clinical populations with hearing loss. Cross-modal plasticity refers to the ability for an intact sensory modality (e.g., vision or somatosensation) to recruit cortical brain regions from a deprived sensory modality (e.g., audition) to carry out sensory processing. We describe evidence for cross-modal changes in hearing loss across the age-spectrum and across different degrees of hearing impairment, including children with profound, bilateral deafness with cochlear implants, single-sided deafness before and after cochlear implantation, and adults with early-stage, mild-moderate, age-related hearing loss. Understanding cross-modal plasticity in the context of auditory deprivation, and the potential for reversal of these changes following intervention, may be vital in directing intervention and rehabilitation options for clinical populations with hearing loss.

14.
Otol Neurotol ; 37(2): e26-34, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26756152

RESUMEN

HYPOTHESIS: The purpose of this study was to examine changes in cortical development and neuroplasticity in a child with single-sided deafness (SSD) before and after cochlear implantation (CI). BACKGROUND: The extent to which sensory pathways reorganize in childhood SSD is not well understood and there is currently little evidence demonstrating the efficacy of CI in children with SSD. METHODS: High-density 128-channel electroencephalography (EEG) was used to collect cortical auditory evoked potentials (CAEP), cortical visual evoked potentials (CVEP), and cortical somatosensory evoked potentials (CSSEP) in a child with SSD, pre-CI and at subsequent sessions until approximately 3 years post-CI in her right ear which occurred at age 9.86 years. Behavioral correlates of speech perception and sound localization were also measured. RESULTS: Pre-CI, high-density EEG showed evidence of delayed auditory cortical response morphology, auditory cortical development strongly contralateral (to the normal hearing ear), evidence of increased cognitive load, and cross-modal reorganization by the visual and somatosensory modalities. The post-CI developmental trajectory provided clear evidence of age-appropriate development of auditory cortical responses, and decreased cross-modal reorganization, consistent with improved speech perception and sound localization. CONCLUSION: Post-CI, the child demonstrated age-appropriate auditory cortical development and improved speech perception and sound localization suggestive of significant benefits from cochlear implantation. Reversal of somatosensory recruitment was clearly apparent, and only a residual amount of visual cross-modal plasticity remained postimplantation. Overall, our results suggest that CI in pediatric SSD patients may benefit from a highly plastic cortex in childhood.


Asunto(s)
Corteza Auditiva/fisiología , Implantes Cocleares , Sordera/cirugía , Plasticidad Neuronal/fisiología , Niño , Implantación Coclear , Electroencefalografía , Potenciales Evocados Auditivos/fisiología , Potenciales Evocados Visuales/fisiología , Femenino , Humanos , Localización de Sonidos , Percepción del Habla
15.
Otorinolaringologia ; 65(4): 103-114, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-27688594

RESUMEN

We review evidence for a high degree of neuroplasticity of the central auditory pathways in early childhood, citing evidence of studies of the P1 and N1 cortical auditory evoked potentials in congenitally deaf children receiving cochlear implants at different ages during childhood, children with auditory neuropathy spectrum disorder and children with hearing loss and comorbid multiple disabilities. We discuss neuroplasticity, including cortico-cortical de-coupling and cross-modal re-organization that occurs in deafness. We provide evidence for the clinical utility of the P1 cortical auditory evoked potential (CAEP) as a non-invasive biomarker that can be used to objectively assess maturation of auditory cortex in clinical cases of cochlear implant patients and candidates. Finally, we present clinical case studies in which the P1 CAEP biomarker proved useful in clinical decision-making regarding intervention in cases of single-sided deafness, auditory neuropathy spectrum disorder, mild hearing loss and hypoplastic auditory nerve.

16.
Hearing Balance Commun ; 11(3)2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-24273704

RESUMEN

OBJECTIVE: First, we review the development and plasticity of the central auditory pathways in infants and children with hearing loss who are fitted with cochlear implants (CIs). Second, we describe case studies demonstrating the clinical utility of the P1 central auditory evoked potential (CAEP) for evaluating cortical auditory maturation in the rapidly increasing number of cochlear-implanted children who have multiple disabilities. STUDY DESIGN: Children who receive CIs provide a platform to examine the trajectories of deprivation-induced and experience-dependent plasticity in the central auditory system. We review the evidence for, and time limits of sensitive periods for cortical auditory maturation framing an optimal period for cochlear implantation. Finally, we evaluate the use of the P1 biomarker as an objective assessment tool in the special case of children with multiple disabilities. RESULTS: The P1 response was useful in assessing central auditory maturation in patients with CHARGE association, ANSD, and Pallister-Killian Syndrome concomitant with hearing loss. CONCLUSION: The presence of co-existing disabilities in addition to hearing loss poses unique challenges regarding both pre-intervention evaluation and post-intervention rehabilitation for children with multiple disabilities. When combined with a standard audiological test battery, the P1 CAEP biomarker has a useful role in objectively evaluating the maturation of central auditory pathways to determine the effectiveness of various intervention strategies in hearing-impaired children with multiple disabilities.

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