Cost-Effective Microscopic Draping: COVID-19 Umbrella.

We describe a cost-effective solution to limit aerosol transmission to the surgeon and other personnel in the operating room during otologic surgery.

Transjugular Approach for Recurrent Intracranial Glomus Vagale Tumors: An Ideal Approach to Preserve Hearing and Facial Nerve Function

Lateral skull base paragangliomas (glomus tumors) are rare skull base tumors arising from neuroendocrine cells. These benign tumors can be locally aggressive with potential for intracranial extension and significant morbidity as they compromise cranial nerve structures. Treatment is highly patient dependent. Herein, we present a case of recurrent glomus vagale paraganglioma requiring a multidisciplinary transjugular and transcervical approach for complete resection. A 64-year-old male was referred to the neurotology clinic in 2019 for a left skull base tumor causing progressive dysphonia and dysphagia. Exam revealed left true vocal fold weakness and no other abnormalities. Hearing was normal on the left. Magnetic resonance imaging (MRI) revealed a large hyperintense lesion of the left jugular foramen with intracranial cerebellopontine angle extension and normal flow through the sigmoid sinus and jugular vein. The patient elected for surgical removal and near-total resection was achieved via retrosigmoid craniotomy. A small portion was intentionally left in the jugular foramen to preserve the intact eleventh cranial nerve, internal jugular vein, and sigmoid sinus. Surgical pathology confirmed glomus paraganglioma. Postoperative radiation was strongly recommended, but the patient was lost to follow-up due to the COVID-19 pandemic. The patient re-presented in late 2021 with worsened dysphonia and dysphagia. Exam confirmed left true vocal fold immobility consistent with vagal nerve paralysis and a new finding of left tongue weakness consistent with hypoglossal nerve injury. MRI revealed recurrence of the lesion to dimensions larger than original presentation and complete occlusion of the sigmoid-jugular system. Hearing and facial nerve function remained fully intact, thus a transjugular approach with hearing preservation and complete surgical resection was utilized. After combined retrosigmoid and transcervical incision, the transjugular approach was utilized to resect the sigmoid sinus, the tumor of the jugular foramen, and the intracranial extension. The ear canal and facial nerve canal were preserved. The sigmoid sinus was ligated with surgical clips and the jugular vein was ligated with suture thread. Intracranially, the hypoglossal nerve was identified and preserved, and the vagus nerve was seen eroded by tumor. Pathology confirmed recurrent paraganglioma. Postoperatively, the patient recovered well but continues to endorse persistent dysphonia. His treatment plan includes radiation and thyroplasty. Multiple surgical approaches for the treatment of skull base paragangliomas have been reported including infratemporal types A to D, among others. This report identifies a rare case of recurrent paraganglioma which necessitated removal via transjugular approach. While uncommon in skull base surgery, this approach allowed identification and preservation of important neck and skull base structures (e.g., facial nerve, ear canal, spinal accessory nerve) while achieving complete gross resection. Radiation techniques have become popular alternatives for treatment of glomus tumors of the skull base due to high levels of surgery-related adverse events. Thus, skull base surgeons should be aware of the utility of the transjugular surgical technique for patients with intact hearing and facial nerve function who seek removal of intracranial jugular foramen tumors.

2BALANCE: a cognitive-motor dual-task protocol for individuals with vestibular dysfunction.

INTRODUCTION: Aside from primary vestibular symptoms such as vertigo and dizziness, persons with vestibular dysfunction frequently express cognitive and motor problems. These symptoms have mainly been assessed in single-task setting, which might not represent activities of daily living accurately. Therefore, a dual-task protocol, consisting of the simultaneous performance of cognitive and motor tasks, was developed. This protocol assesses cognitive and motor performance in general, as well as cognitive-motor interference in specific. METHODS AND ANALYSIS: The motor component of the 2BALANCE protocol consists of a static and dynamic postural task. These motor tasks are combined with different cognitive tasks assessing visuospatial cognition, processing speed, working memory and response inhibition. First, test-retest reliability will be assessed with an interval of 2 weeks in a group of young adults. Second, the 2BALANCE protocol will be validated in persons with bilateral vestibulopathy. Finally, the protocol will be implemented in persons with unilateral vestibular loss. DISCUSSION AND CONCLUSIONS: The 2BALANCE project aims to elucidate the impact of vestibular dysfunction on cognitive and motor performance in dual-task setting. This protocol represents everyday situations better than single-task protocols, as dual-tasks such as reading street signs while walking are often encountered during daily activities. Ultimately, this project could enable individualised and holistic clinical care in these patients, taking into account single as well as dual-task performance. ETHICS AND DISSEMINATION: The current study was approved by the ethics committee of Ghent University Hospital on 5 July 2019 with registration number B670201940465. All research findings will be disseminated in peer-reviewed journals and presented at vestibular as well as multidisciplinary international conferences and meetings. TRIALS REGISTRATION NUMBER: NCT04126798, pre-results phase.

Guidelines of the French Society of Otorhinolaryngology (SFORL) for teleconsultation in patients with vertigo during the COVID-19 pandemic.

OBJECTIVES: In the context of the SARS-CoV-2 pandemic, patients may have been dissuaded from seeking consultation, thus exposing themselves to a risk of loss of chance. This guide aims to define how teleconsultation can assist in assessing vertiginous adults or children, and to gather the information needed to provide quick medical care. METHODS: These recommendations rely on the authors' experience as well as on literature. A survey on otoneurologic approach via telemedicine has been conducted based on a literature search until March 2020. RESULTS: The first clinical assessment of the vertiginous patient via teleconsultation can only be successful if the following conditions are met: initial contact to verify the feasibility of the assessment at a distance, the presence of a caregiver in order to assist the patient, the possibility of making video recordings. Medical history via telemedicine, as in a face-to-face assessment, allows to assess the characteristics, duration, frequency, and potential triggering factors of the vertigo, in both children and adults. During teleconsultation, the following tests can be carried out: oculomotricity evaluation, assessment of balance, simple neurological tests, checking for positional vertigo/nystagmus and, eventually to perform canalith-repositioning procedures. In children, the following should be searched for: history of hearing or visual impairment, a context of fever or trauma, otorrhea, signs of meningeal irritation. CONCLUSION: The neurotologic telemedicine relies on the accuracy of the clinical assessment, which is based on history taking and a few simple tests, encouraging the development of a decision-making algorithm adapted for teleconsultation. However, the latter has its limitations during an emergency examination of a new patient presenting vertigo, and, at least in some cases, cannot replace a face-to-face consultation. Teleconsultation is often adapted for follow-up consultations of previously selected vertiginous patients during face-to-face assessment.

Coronavirus Disease-19 and Otology/Neurotology.

The severe acute respiratory syndrome corona virus 2, responsible for the worldwide COVID-19 pandemic, has caused unprecedented changes to society as we know it. The effects have been particularly palpable in the practice of medicine. The field of otolaryngology has not been spared. We have had to significantly alter the way we provide care to patients, changes that are likely to become a new norm for the foreseeable future. This article highlights some of the changes as they apply to otology/neurotology. Although this is written from the perspective of an academic physician, it is also applicable to private practice colleagues.

An operative barrier system for skull base and mastoid surgery: creating a safe operative theatre in the era of COVID-19.

Within Neurotology, special draping systems have been devised for mastoid surgery recognizing that drilling of middle ear mucosa is an aerosol generating medical procedure (AGMP) which can place surgical teams at risk of COVID-19 infection. We provide a thorough description of a barrier system utilized in our practice, along with work completed by our group to better quantify its effectiveness. Utilization of a barrier system can provide near complete bone dust and droplet containment within the surgical field and prevent contamination of other healthcare workers. As this is an early system, further adaptations and national collaborations are required to ultimately arrive at a system that seamlessly integrates into the surgical suite. While these barrier systems are new, they are timely as we face a pandemic, and can play a crucial role in safely resuming surgery.

The challenge of performing mastoidectomy using the operating microscope with coronavirus disease 2019 personal protective equipment (PPE).

OBJECTIVE: Mastoidectomy is considered an aerosol-generating procedure. This study examined the effect of wearing personal protective equipment on the view achieved using the operating microscope. METHODS: ENT surgeons assessed the area of a calibrated target visible through an operating microscope whilst wearing a range of personal protective equipment, with prescription glasses when required. The distance between the surgeon's eye and the microscope was measured in each personal protective equipment condition. RESULTS: Eleven surgeons participated. The distance from the eye to the microscope inversely correlated with the diameter and area visible (p < 0.001). The median area visible while wearing the filtering facepiece code 3 mask and full-face visor was 4 per cent (range, 4-16 per cent). CONCLUSION: The full-face visor is incompatible with the operating microscope. Solutions offering adequate eye protection for aerosol-generating procedures that require the microscope, including mastoidectomy, are urgently needed. Low-profile safety goggles should have a working distance of less than 20 mm and be compatible with prescription lenses.

Aerosol Dispersion During Mastoidectomy and Custom Mitigation Strategies for Otologic Surgery in the COVID-19 Era.

OBJECTIVE: To investigate small-particle aerosolization from mastoidectomy relevant to potential viral transmission and to test source-control mitigation strategies. STUDY DESIGN: Cadaveric simulation. SETTING: Surgical simulation laboratory. METHODS: An optical particle size spectrometer was used to quantify 1- to 10-µm aerosols 30 cm from mastoid cortex drilling. Two barrier drapes were evaluated: OtoTent1, a drape sheet affixed to the microscope; OtoTent2, a custom-structured drape that enclosed the surgical field with specialized ports. RESULTS: Mastoid drilling without a barrier drape, with or without an aerosol-scavenging second suction, generated large amounts of 1- to 10-µm particulate. Drilling under OtoTent1 generated a high density of particles when compared with baseline environmental levels (P < .001, U = 107). By contrast, when drilling was conducted under OtoTent2, mean particle density remained at baseline. Adding a second suction inside OtoTent1 or OtoTent2 kept particle density at baseline levels. Significant aerosols were released upon removal of OtoTent1 or OtoTent2 despite a 60-second pause before drape removal after drilling (P < .001, U = 0, n = 10, 12; P < .001, U = 2, n = 12, 12, respectively). However, particle density did not increase above baseline when a second suction and a pause before removal were both employed. CONCLUSIONS: Mastoidectomy without a barrier, even when a second suction was added, generated substantial 1- to 10-µm aerosols. During drilling, large amounts of aerosols above baseline levels were detected with OtoTent1 but not OtoTent2. For both drapes, a second suction was an effective mitigation strategy during drilling. Last, the combination of a second suction and a pause before removal prevented aerosol escape during the removal of either drape.