[Standardized risk-based antibiotic prophylaxis and adhesive film dressing for the prevention of wound infection following cochlear implantation].

Background: There is no consensus in the pertinent literature regarding the optimal antibiotic prophylaxis (AP) for cochlear implantation (CI). This study evaluates the implementation of standardized risk-based AP combined with application of an adhesive film dressing.

Materials And Methods: All CI cases since September 2019 were retrospectively reviewed for postoperative wound complications.

Novel noncanonical splice site variant causes mild CHD7-related disorder with variable intrafamilial expressivity.

The clinical diagnosis criteria for CHARGE syndrome have been revised several times in the last 25 years. Variable expressivity and reduced penetrance are known, particularly in mild and familial cases. Therefore, it has been proposed to include the detection of a pathogenic CHD7 variant as a major diagnostic criterion.

Piezoelectric ear surgery: a systematic review.

Background: The piezoelectric instrument (PEI) offers a novel technique for bone removal in ear surgery with a combination of micro-oscillation and cavitation. The aim of this review is to explore the advantages, disadvantages, and limitations of this instrument in comparison to the drill.

Materials And Methods: We conducted a search of PubMed/MEDLINE and Google Scholar in accordance with the PRISMA recommendations.

[Piezoelectric ear surgery: a systematic review. German version].

Background: The piezoelectric instrument (PEI) offers a novel technique for bone removal in ear surgery with a combination of micro-oscillation and cavitation. The aim of this review is to explore the advantages, disadvantages, and limitations of this instrument in comparison to the drill.

Materials And Methods: We conducted a search of PubMed/MEDLINE and Google Scholar in accordance with the PRISMA recommendations.

Multi-mode grounding and monophasic passive discharge stimulation avoid aberrant facial nerve stimulation following cochlear implantation.

We report on a case with severe facial nerve stimulation via a cochlea-facial nerve dehiscence that was most likely the result of prolonged occlusive hydrocephalus. The successful treatment of this adverse effect demonstrates for the first time its complete resolution using a multi-mode grounding and monophasic passive discharge stimulation.

Cochlear reimplantation from mid-scala to lateral wall electrode array: Surgical and hearing outcome.

A mid-scala cochlear implant electrode array, which was inserted with an atraumatic round window approach, could be replaced with longer lateral wall electrode array. Deeper electrode insertion seems to have beneficial influence on the hearing quality.

Piezoelectric canalplasty for exostoses and osteoma.

Objective: To evaluate the safety profile and surgical technique for removal of symptomatic exostoses and osteoma of the external auditory canal with a micro-oscillating piezoelectric device.

Method: A chart review was conducted on patients undergoing piezoelectric canalplasty between 2019 and 2021 at tertiary referral hospital. Surgery was performed by two surgeons with varying experience.

Piezosurgery in Translabyrinthine-Approach Exposure of the Internal Auditory Canal.

Objective: To assess the applicability of the piezoelectric device in translabyrinthine-approach exposure of the internal auditory canal.

Methods: In three cases with vestibular schwannoma, the bone around the internal auditory canal was completely removed by means of piezosurgery. Evaluation was performed by an experienced surgeon, and a second relatively inexperienced surgeon.

[Late complications after tracheotomy in the nursing home].

Background: Advances in modern intensive care have led to a sharp increase in the number of tracheotomies performed in intensive care units. In contrast to surgical epithelial tracheostomy (ST), a less sturdy stoma is created by means of percutaneous dilation of tracheotomy (PDT). The advantages of a PDT compared to ST are the simpler logistical efforts, associated cost reduction and minimally invasive nature of the process.

Influence of Floating-Mass Transducer Coupling Efficiency for Active Middle-Ear Implants on Speech Recognition.

Objective: The efficiency of vibroplasty (coupler-floating mass transducer [FMT] assembly) can be monitored by direct stimulation of the inner ear through the active middle-ear implant system and comparison of the vibroplasty in vivo threshold and the postoperative bone-conduction pure-tone threshold. The aim of this study was to compare the vibroplasty in vivo threshold with the postoperative speech recognition in patients with a high preoperative maximum word recognition score.

Study Design: Retrospective cohort study of German-speaking patients implanted with a vibrating ossicular prosthesis (VORP) 502 or VORP 503 and high preoperative maximum word recognition score between the years of 2011 and 2015.

Caloric stimulation and video-head impulse testing in Ménière's disease and vestibular migraine.

Conclusion: Both the bithermal caloric test and the video-head impulse test (vHIT) were more often abnormal in Ménière's disease (MD) than in vestibular migraine (VM). Horizontal vestibulo-ocular reflex (hVOR) evaluation with caloric test (low-frequency test) was significantly more often abnormal than vHIT (high-frequency test). Therefore, both tests can be used in a complementary way for frequency-selective testing of peripheral vestibular function.

Horizontal VOR function shows frequency dynamics in vestibular schwannoma.

The objective of this retrospective study was to investigate the horizontal vestibulo-ocular reflex (hVOR) pathway with caloric test (low-frequency hVOR) and video head impulse test (vHIT) (high-frequency hVOR) in patients with sporadic vestibular schwannoma (69 patients, 27-86 years, mean age 58.1 years) and to compare both test methods in terms of their sensitivity and specificity to detect a retrocochlear lesion. Test results with a unilateral weakness (UWCaloric) >25 % (caloric test) or a Mean-GainvHIT <0.

The inner structure of human otoconia.

Background: The architecture of human otoconia has been only poorly understood up to now. Currently, it is assumed that otoconia contain a central core surrounded by a shell.

Objectives: To investigate the inner structure of human otoconia.

Detection of human utricular otoconia degeneration in vital specimen and implications for benign paroxysmal positional vertigo.

Otoconia are assumed to be involved in inner ear disorders such as benign paroxysmal positional vertigo (BPPV). Up to now, the distinct structure and morphology of intact and degenerate human utricular otoconia has been only poorly investigated on vital specimen. In this study, human otoconia were obtained from the utricle in five patients undergoing translabyrinthine vestibular schwannoma surgery.

[Video head impulse test or caloric irrigation?. Contemporary diagnostic tests for vestibular schwannoma].

The video head impulse test (vHIT) is a new method for investigating vestibular function that is currently poorly studied in terms of its value for clinical diagnosis in otolaryngology. Both the caloric irrigation and vHIT serve to evaluate the horizontal vestibulo-ocular reflex. In the present study, caloric irrigation and vHIT were compared in 46 patients with vestibular schwannoma.

[The EXIT procedure].

The ex utero intrapartum treatment (EXIT) procedure is used for unborn fetuses in cases of predictable complications of postpartum airway obstruction. Indications for the EXIT procedure are fetal neck tumors, obstruction of the trachea, hiatus hernia of the diaphragm and congenital high airway obstruction syndrome (CHAOS). Large cervical tumors prevent normal delivery of a fetus due to reclination of the head with airway obstruction.

[The video head impulse test: first clinical experiences].

Background: Side-specific test procedures are mandatory in order to assess the function of peripheral vestibular receptors. Semicircular canals (SCC) and vestibulo-ocular reflex (VOR) can be tested by the Halmagyi and Curthoy head impulse test (HIT) and recently by means of the video head impulse test (vHIT). The vHIT procedure is a new method to measure eye and head velocity during brief and rapid head impulses.

Dynamic Change of VOR and Otolith Function in Intratympanic Gentamicin Treatment for Ménière's Disease: Case Report and Review of the Literature.

Intratympanic gentamicin treatment (IGT) is an evidence-based therapeutic option for recurrent vertigo attacks in Ménière's disease (MD). Today, in MD it is possible to monitor changes of vestibular receptor function, induced by IGT, with objective test methods such as the video head impulse test (vHIT) and cervical and ocular vestibular evoked myogenic potentials (cVEMP, oVEMP) in a dynamic, time-and frequency-dependent manner. We report on a 65-year-old female patient with recurrent vertigo attacks in a right-sided MD, where receptor function was followed up before and up to 4 weeks after IGT (time dynamic).

[Isolated functional loss of the lateral semicircular canal in vestibular neuritis].

Today, modern tools in vestibular testing are feasible to provide information about functional status of all five peripheral vestibular receptors. Isolated or combined loss of crista and macula receptor function can be determined in the diagnostic process. We describe a seldom case of isolated functional loss of lateral semicircular canal receptor function in a 55-year-old patient.

[Receptor function of the semicircular canals. Part 2: pathophysiology, diseases, clinical findings and treatment aspects].

Perturbation of semicircular canal function may result in a pathological angular vestibulo-ocular reflex (aVOR). The resulting impairment in gaze stabilization is perceived as "vertigo" or "dizziness" and may occur following receptor function impairment of all three semicircular canals. The head impulse test reveals hidden (covert-catchup) or visible (overt-catchup) saccades in disturbances of semicircular function.