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cochlear implants and infections

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https://www.readbyqxmd.com/read/28680501/methods-of-hearing-preservation-during-cochlear-implantation
#1
REVIEW
Ahmed Khater, Mohammad Waheed El-Anwar
Introduction  Recent advances in surgical techniques and electrode design have made residual hearing preservation during cochlear implantation (CI) possible, achievable, and desirable. Objectives  The objective of this study was to review the literature regarding methods used for hearing preservation during CI surgery. Data Synthesis  We performed a search in the LILACS, MEDLINE, SciELO, PubMed databases, and Cochrane Library, using the keywords CI, hearing preservation, CI electrode design, and CI soft surgery...
July 2017: International Archives of Otorhinolaryngology
https://www.readbyqxmd.com/read/28678056/enlarged-vestibular-aqueduct-syndrome-sudden-hearing-loss-in-a-child-with-a-cerebral-shunt
#2
Wendi-Jo Wendt, Andrew Hashikawa
Enlarged vestibular aqueduct syndrome (EVAS) is the most common congenital ear anomaly that causes sensorineural hearing loss in children and may predispose a child to sudden hearing loss from sudden pressure changes or minor head trauma. We report a case of a 4-year-old boy with a history of a ventriculoperitoneal shunt and migraines who presented to the emergency department with parental and child care provider reports of acute hearing loss, without a history of trauma, infection, or hardware malfunction, who was diagnosed with bilateral EVAS...
July 4, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28614440/nursing-diagnoses-and-interventions-in-children-submitted-to-cochlear-implantation
#3
Patrícia Juliana Santos Pereira, Natália Fernanda Higa de Souza, Raissa Janine de Almeida, Daiane Cabrera Menezes, Gesiane Cristina Bom, Armando Dos Santos Trettene
OBJECTIVE: Identifying the main nursing diagnoses and interventions in children submitted to cochlear implant in the immediate postoperative period. METHOD: A cross-sectional study conducted between February and April 2016, considering nursing history (anamnesis and physical examination) and nursing diagnoses (NANDA - International) with their respective interventions (Nursing Intervention Classification - NIC). Descriptive statistical analysis was used to construct the results...
June 12, 2017: Revista da Escola de Enfermagem da U S P
https://www.readbyqxmd.com/read/28604578/long-term-outcomes-of-cochlear-implantation-in-children-with-congenital-cytomegalovirus-infection
#4
Haruo Yoshida, Haruo Takahashi, Yukihiko Kanda, Kyoko Kitaoka, Minoru Hara
OBJECTIVE: To investigate the role of the developmental delay often observed in children with congenital cytomegalovirus (CMV) infection on the improvement of language understanding after cochlear implantation (CI). STUDY DESIGN: Retrospective chart review. PATIENTS: Sixteen children with severe and/or profound hearing loss due to congenital CMV infection (CMV group) and 107 congenitally deaf children (168 ears) without CMV infection as the cause of deafness (non-CMV group)...
August 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28604577/pain-after-cochlear-implantation-an-unusual-complication
#5
Charlotte Celerier, Isabelle Rouillon, Marion Blanchard, Marine Parodi, Françoise Denoyelle, Natalie Loundon
OBJECTIVE: To analyze clinical signs and better define the underestimated long-term pain after implantation, to discuss etiological hypothesis, and to propose our department treatment algorithm and results. STUDY DESIGN AND SETTING: Retrospective review of children implanted with complaints of atypical pain in the area of device implantation, not in the immediate postoperative period, more than or equal to 4 on the Visual Analog Pain Scale (VAPS: 0-10) in the ENT pediatric department of Trousseau and Necker Enfants Malades Hospitals between 1998 and 2015...
August 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28526091/a-pre-therapeutic-coating-for-medical-devices-that-prevents-the-attachment-of-candida-albicans
#6
Diego Vargas-Blanco, Aung Lynn, Jonah Rosch, Rony Noreldin, Anthony Salerni, Christopher Lambert, Reeta P Rao
BACKGROUND: Hospital acquired fungal infections are defined as "never events"-medical errors that should never have happened. Systemic Candida albicans infections results in 30-50% mortality rates. Typically, adhesion to abiotic medical devices and implants initiates such infections. Efficient adhesion initiates formation of aggressive biofilms that are difficult to treat. Therefore, inhibitors of adhesion are important for drug development and likely to have a broad spectrum efficacy against many fungal pathogens...
May 19, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28498076/cochlear-implantation-in-mondini-s-deformity-could-the-straight-electrode-array-with-length-of-31%C3%A2-mm-be-fully-inserted
#7
Jia-Qiang Sun, Jing-Wu Sun, Xiao-Yan Hou
CONCLUSIONS: The straight electrode array with length of 31 mm can be fully inserted using round window insertion in cochlear implantation with Mondini's deformity. It is a safe and effective process, but also a challenging task of the full implantation in children with Mondini's deformity. OBJECTIVE: The aim of this study is to discuss whether the straight electrode array with a length of 31 mm could be fully inserted in cochlear implantation with Mondini's deformity...
July 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28490377/cochlear-implant-electrode-sealing-techniques-and-related-intracochlear-pressure-changes
#8
Ingo Todt, Julica Utca, Dania Karimi, Arne Ernst, Philipp Mittmann
BACKGROUND: The inserted cochlear implanted electrode is covered at the site of the round window or cochleostomy to prevent infections and leakage. In a surgically hearing preservational concept, low intracochlear pressure changes are of high importance. The aim of this study was to observe intracochlear pressure changes due to different sealing techniques in a cochlear model. METHODS: Cochlear implant electrode insertions were performed in an artifical cochlear model and the intracochlear pressure changes were recorded in parallel with a micro-pressure sensor positioned in the apical region of the cochlea model to follow the maximum amplitude of intracochlear pressure...
May 11, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28483256/infectious-complications-of-pediatric-cochlear-implants-are-highly-influenced-by-otitis-media
#9
Peter M Vila, Nsangou T Ghogomu, Audrey R Odom-John, Timothy E Hullar, Keiko Hirose
OBJECTIVE: Determine the incidence of ear infections in cochlear implant patients, evaluate the contribution of otitis media to complications, describe the bacteriology of otitis media in the cochlear implant population, the treatment provided at our center, and the long term outcome. METHODS: Data collected included age at implantation, history of otitis media or ear tubes, etiology of hearing loss, inner ear anatomy, postoperative infections, time to infection, route of antibiotic administration, and interventions for infections...
June 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28464710/salvaging-cochlear-implant-after-wound-infection-well-worth-a-try
#10
Shalabh Sharma, Anandita Gupta, Khyati Bhatia, Asish Kumar Lahiri, Satinder Singh
BACKGROUND: Cochlear implant (CI)-related wound infections are known to happen even years after the implant procedure and present a challenging clinical situation. Due to the formation of biofilm on the implant surface such infections are difficult to eradicate. Invariably explantation of the device is required for wound healing. METHOD: A 10-year-old patient presented with recurrent CI-related wound infection 8 years after implantation. The implant was salvaged with wound debridement and treating it with tea tree oil which is known for its biofilm eradicating properties...
May 3, 2017: Cochlear Implants International
https://www.readbyqxmd.com/read/28369924/sonographic-diagnosis-of-acute-mastoiditis-and-subsequent-retroauricular-abscess-in-a-pediatric-cochlear-implant-recipient-a-case-report
#11
Hiroshi Sakaida, Satoko Usui, Yasunori Matsuda, Sawako Masuda, Kazuhiko Takeuchi
When acute mastoiditis occurs in cochlear implant recipients, it can progress to subsequent retroauricular abscess due to the absence of the external mastoid cortex resulting from mastoidectomy performed for cochlear implantation. The management goal is to control infection while preserving the implanted device. A 2-year-old boy with cochlear implants developed acute mastoiditis and a subsequent retroauricular abscess. The patient underwent a surgical intervention based on the diagnosis made utilizing gray-scale and power Doppler sonography...
April 3, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28353621/the-effect-of-soft-tissue-infections-on-device-performance-in-adult-cochlear-implant-recipients
#12
Kerrie McAllister, Hannah Linkhorn, Mayaan Gruber, Ellen Giles, Michel Neeff
OBJECTIVE: The aim of this study was to examine the effect of cochlear implant (CI) site infection and its subsequent management on CI mapping and CI performance. Risk factors for CI infections and pathogens causing infections were reviewed. Treatment options for CI infections were examined. STUDY DESIGN: Retrospective case review. SETTING: Tertiary referral center. PATIENTS: Adult patients with a significant CI soft tissue infection from the Northern Cochlear Implant Programme, New Zealand over a 10-year period (August 2004 until August 2014)...
June 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28333779/impact-of-chronic-suppurative-otitis-media-in-pediatric-cochlear-implant-recipients-insight-into-the-challenges-from-a-tertiary-referral-center-in-uk
#13
Paramita Baruah, Kate Hanvey, Richard Irving, Konstance Tzifa
OBJECTIVE: Analyze the presentation and evolution of chronic suppurative otitis media (CSOM) in children with cochlear implants (CI) and explore the merit of early intervention. STUDY DESIGN: Retrospective patient review. SETTING: Tertiary referral hospital and cochlear implant programme. PATIENTS: Children with a CI who developed CSOM. INTERVENTION: Tympanoplasty. MAIN OUTCOME MEASURES: Disease control, recurrence of cholesteatoma, cochlear implant preservation...
June 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28332898/herpes-simplex-virus-1-and-cytomegalovirus-dnas-detection-in-the-inner-ear-of-implanted-patients-with-non-congenital-infection
#14
Walter Di Nardo, Roberta Anzivino, Paola Cattani, Rosaria Santangelo, Eugenio De Corso, Gaetano Paludetti
CONCLUSIONS: The detection of cytomegalovirus (CMV) and herpes simplex virus-1 (HSV-1) genome in perilymph of patients with negative serology or clinical history for congenital infections supports the hypothesis that Herpesviridae, even after acquired postnatal infections, could remain in latent phase in the spiral ganglion and damage the cochlea by a possible subsequent reactivation. Further studies are needed to identify the markers of such reactivation. OBJECTIVE: To identify the presence of certain viral species in the endolabyrinthic fluid of deaf patients with non-congenital infection...
March 23, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28331642/lemierre-s-syndrome-associated-with-mechanical-ventilation-and-profound-deafness
#15
Lukas Birkner
Lemierre's syndrome is a rare disorder that is characterized by anaerobic organisms inducing a thrombophlebitis of the internal jugular vein (IJV) following a course of oropharyngeal infection. It often occurs in young and healthy patients. Clinicians continuously misinterpret early symptoms until infection disseminates systematically and life-threatening sepsis transpires. We report the case of a 58-year-old female developing Lemierre's syndrome accompanied by invasive ventilation support and a profound deafness requiring the implementation of a cochlear implant...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/28295372/surface-charge-modification-decreases-pseudomonas-aeruginosa-adherence-in-vitro-and-bacterial-persistence-in-an-in-vivo-implant-model
#16
W Katherine Kao, Patricia M Gagnon, Joseph P Vogel, Richard A Chole
OBJECTIVE: Chronic, persistent infections complicate otologic procedures utilizing implantable devices such as cochlear implants or tympanostomy tubes. These infections are thought to be due to the establishment of microbial biofilms on implant surfaces. To address this issue, we hypothesized that surface charge modification may inhibit the formation of Pseudomonas aeruginosa biofilms on implant surfaces in vitro and in vivo. STUDY DESIGN: We evaluated the effect of surface charge modification on bacterial biofilm formation by assessing the effect of the surface charge on bacterial adhesion in vitro and bacterial persistence in vivo...
July 2017: Laryngoscope
https://www.readbyqxmd.com/read/28235386/characteristics-of-ci-children-with-complicated-middle-ear-infections
#17
Søren Hoberg, Christian Danstrup, Bjarke Laursen, Niels Krintel Petersen, Nichlas Udholm, Gintaras Audrius Kamarauskas, Therese Ovesen
OBJECTIVE: To describe cases of complicated middle ear infections in children with cochlear implants (CI), i.e., episodes of acute otitis media (AOM) and acute mastoiditis (AM), resulting in hospitalization. METHODS: A total of 206 children under 16 years (300 implantations) were implanted between 1 January 2008 and 31 December 2014 at the West Danish CI Center, Department of Otorhinolaryngology Head and Neck Surgery, Aarhus, Denmark. By means of two prospective local databases, episodes of AOM or AM and demographics were retrieved including biochemistry, microbiology, length of follow- up, and variable treatment modalities (intravenous (IV) antibiotics, revision mastoidectomy, and insertion of ventilation tubes)...
February 24, 2017: Cochlear Implants International
https://www.readbyqxmd.com/read/28209771/hearing-loss-in-children-with-asymptomatic-congenital-cytomegalovirus-infection
#18
Tatiana M Lanzieri, Winnie Chung, Marily Flores, Peggy Blum, A Chantal Caviness, Stephanie R Bialek, Scott D Grosse, Jerry A Miller, Gail Demmler-Harrison
OBJECTIVES: To assess the prevalence, characteristics, and risk of sensorineural hearing loss (SNHL) in children with congenital cytomegalovirus infection identified through hospital-based newborn screening who were asymptomatic at birth compared with uninfected children. METHODS: We included 92 case-patients and 51 controls assessed by using auditory brainstem response and behavioral audiometry. We used Kaplan-Meier survival analysis to estimate the prevalence of SNHL, defined as ≥25 dB hearing level at any frequency and Cox proportional hazards regression analyses to compare SNHL risk between groups...
March 2017: Pediatrics
https://www.readbyqxmd.com/read/28195822/microflora-of-retained-intracochlear-electrodes-from-infected-cochlear-implants
#19
Varun V Varadarajan, Carolyn O Dirain, Patrick J Antonelli
Objectives Cochlear implant infections may be refractory to medical management and require device removal with subsequent reimplantation. During device removal, the intracochlear electrode array is commonly left in place to prevent obliteration of the cochlear lumen. If the electrode is colonized with pathogens, this risks contaminating the replacement implant. In this study, we compare the microorganisms detected on infected cochlear implants against those on the retained electrode using culture and microbial gene-sequencing techniques...
February 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28192378/analysis-and-management-of-complications-in-a-cohort-of-1-065-minimally-invasive-cochlear-implantations
#20
Yi Jiang, Ping Gu, Beicheng Li, Xue Gao, Baochun Sun, Yueshuai Song, Guojian Wang, Yongyi Yuan, Cuicui Wang, Miao Liu, Dongyi Han, Pu Dai
OBJECTIVES: To analyze complications associated with minimally invasive cochlear implantation by comparing data from different centers, to discuss major reasons for complications, and to refine implantation techniques to decrease them. PATIENTS: Patients who underwent cochlear implantation at our center by the same surgeon (the corresponding author of this article) from March 2006 to March 2015 were enrolled. INTERVENTION: First, a retrospective analysis of the complications associated with minimally invasive cochlear implantation at our center was performed...
March 2017: Otology & Neurotology
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