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Fulltext Audiovestibular clinician experiences and opinions about cisplatin vestibulotoxicity

Prayuenyong P, Kasbekar AV, Hall DA, Baguley DM

Eur Arch Otorhinolaryngol, 2020 Dec;277(12):3283-3293.
PMID: 32430772 DOI: 10.1007/s00405-020-06033-4

PURPOSE: Vestibulotoxicity associated with cisplatin chemotherapy is known to exist, but the extent, severity, and impact is unclear from the literature. This study explored knowledge, experiences, and opinions of audiovestibular professionals about cisplatin vestibulotoxicity.
METHODS: An online survey was disseminated to clinicians working in the audiovestibular field.
RESULTS: Ninety-three respondents participated in the survey. Most professionals were aware of potential vestibulotoxicity associated with cisplatin chemotherapy. Thirty-three percent of the respondents reported that they had seen patients with cisplatin vestibulotoxicity. Forty percent of them were confident in making the diagnosis and in managing the patient in this situation. The prevalence and impact of vestibulotoxicity including practicality of the assessment should be considered when designing an effective vestibulotoxicity screening protocol.
CONCLUSION: This study provides a better understanding of cisplatin vestibulotoxicity from the perspectives of audiovestibular clinicians, which will underpin appropriate detection and management of the condition.
Imbalance Associated With Cisplatin Chemotherapy in Adult Cancer Survivors: A Clinical Study

Prayuenyong P, Kasbekar AV, Hall DA, Hennig I, Anand A, Baguley DM

Otol Neurotol, 2021 07 01;42(6):e730-e734.
PMID: 33606465 DOI: 10.1097/MAO.0000000000003079

OBJECTIVE: This study investigated balance problems and vestibular function in adult cancer survivors who had completed cisplatin chemotherapy treatment.
STUDY DESIGN: Observational cross-sectional study.
SETTING: Tertiary care center.
PATIENTS: Adult survivors of cancer who had completed cisplatin treatment.
MAIN OUTCOME MEASURES: Patient-reported balance symptoms were evaluated by a semistructured clinical interview. Patients underwent bedside clinical tests including Dynamic Visual Acuity test, Modified Clinical Testing of Sensory Interaction and Balance (CTSIB-m), and vibration sense testing to detect peripheral neuropathy. The video Head Impulse Test (vHIT) of all semicircular canals was performed.
RESULTS: Eleven of 65 patients (17%) reported some balance symptoms after cisplatin therapy, including vertigo, dizziness, unsteadiness, and falls. Vertigo was the most common balance symptom, reported by six patients (9.2%), and the clinical histories of these patients were consistent with benign paroxysmal positional vertigo. Three patients (5%) had abnormal results of the CTSIB-m test, and they were the same patients who reported falls. There was a significant association of peripheral neuropathy detected by vibration test and balance symptoms. All patients had normal vHIT results in all semicircular canals.
CONCLUSIONS: Balance symptoms after cisplatin treatment occurred in 17% of adult cancer survivors. Patients with peripheral neuropathy were more likely to have balance symptoms. The CTSIB-m test is a useful bedside physical examination to identify patients with a high risk of fall. Though there was no vestibular dysfunction detected by the vHIT in cancer survivors after cisplatin therapy, benign paroxysmal positional vertigo was relatively prevalent in this group of patients.
A process for prioritising systematic reviews in tinnitus

Sereda M, McFerran D, Axon E, Baguley DM, Hall DA, Potgieter I, et al.

Int J Audiol, 2020 08;59(8):640-646.
PMID: 32134348 DOI: 10.1080/14992027.2020.1733677

Objective: To develop an innovative prioritisation process to identify topics for new or updated systematic reviews of tinnitus research.Design: A two-stage prioritisation process was devised. First, a scoping review assessed the amount of randomized controlled trial-level evidence available. This enabled development of selection criteria for future reviews, aided the design of template protocol and suggested the scale of work that would be required to conduct these reviews. Second, using the pre-defined primary and secondary criteria, interventions were prioritised for systematic review.Study sample: Searches identified 1080 records. After removal of duplicates and out of scope works, 437 records remained for full data charting.Results: The process was tested, using subjective tinnitus as the clinical condition and using Cochrane as the systematic review platform. The criteria produced by this process identified three high priority reviews: (1) Sound therapy using amplification devices and/or sound generators; (2) Betahistine and (3) Cognitive behaviour therapy. Further secondary priorities were: (4) Gingko biloba, (5) Anxiolytics, (6) Hypnotics, (7) Antiepileptics and (8) Neuromodulation.Conclusions: A process was developed which successfully identified priority areas for Cochrane systematic reviews of interventions for subjective tinnitus. This technique could easily be transferred to other conditions and other types of systematic reviews.
Fulltext Vestibulotoxicity Associated With Platinum-Based Chemotherapy in Survivors of Cancer: A Scoping Review

Prayuenyong P, Taylor JA, Pearson SE, Gomez R, Patel PM, Hall DA, et al.

Front Oncol, 2018;8:363.
PMID: 30319960 DOI: 10.3389/fonc.2018.00363

Background: Cochleotoxicity following the treatment with platinum-based chemotherapy is well documented. The potential for vestibulotoxicity is still unclear. This scoping review examined the extent of current research literature, summarized research findings and identified research gaps regarding vestibular-related adverse effects associated with platinum-based chemotherapy in survivors of cancer. Methods: Inclusion criteria followed the PICO principles: Participants, adult, and pediatric cancer patients of any cancer type; Intervention, platinum-based chemotherapy (such as cisplatin, carboplatin, and oxaliplatin); Control, none or any; Outcomes, vestibular-related adverse effects. English language articles published since 1978 were retrieved. Seventy-five eligible studies were identified from a systematic literature search, and relevant data were charted, collated, and summarized. Results: Testing for vestibulotoxicity predominately featured functional evaluation of the horizontal semicircular canal using the caloric and rotational tests. The rate of abnormal vestibular function test results after chemotherapy administration varied from 0 to 50%. The results of objective testing did not always correspond to patient symptoms. There is tentative support for patients with pre-existing loss of vestibular function to be more likely to experience vestibular toxicity after dosing with cisplatin. Conclusions: A number of studies reported significant evidence of vestibular toxicities associated with platinum-based chemotherapy, especially cisplatin. This scoping review emphasizes that vestibular toxicity needs more attention and comprehensive evaluation. Specifically, studies that analyse cumulative dose of platinum-based chemotherapy, affected sites of lesion in vestibular end organs, and the correlation and temporal patterns of cochlear and vestibular toxicity are needed.
Tinnitus and tinnitus disorder: Theoretical and operational definitions (an international multidisciplinary proposal)

De Ridder D, Schlee W, Vanneste S, Londero A, Weisz N, Kleinjung T, et al.

Prog Brain Res, 2021;260:1-25.
PMID: 33637213 DOI: 10.1016/bs.pbr.2020.12.002

As for hypertension, chronic pain, epilepsy and other disorders with particular symptoms, a commonly accepted and unambiguous definition provides a common ground for researchers and clinicians to study and treat the problem. The WHO's ICD11 definition only mentions tinnitus as a nonspecific symptom of a hearing disorder, but not as a clinical entity in its own right, and the American Psychiatric Association's DSM-V doesn't mention tinnitus at all. Here we propose that the tinnitus without and with associated suffering should be differentiated by distinct terms: "Tinnitus" for the former and "Tinnitus Disorder" for the latter. The proposed definition then becomes "Tinnitus is the conscious awareness of a tonal or composite noise for which there is no identifiable corresponding external acoustic source, which becomes Tinnitus Disorder "when associated with emotional distress, cognitive dysfunction, and/or autonomic arousal, leading to behavioural changes and functional disability.". In other words "Tinnitus" describes the auditory or sensory component, whereas "Tinnitus Disorder" reflects the auditory component and the associated suffering. Whereas acute tinnitus may be a symptom secondary to a trauma or disease, chronic tinnitus may be considered a primary disorder in its own right. If adopted, this will advance the recognition of tinnitus disorder as a primary health condition in its own right. The capacity to measure the incidence, prevalence, and impact will help in identification of human, financial, and educational needs required to address acute tinnitus as a symptom but chronic tinnitus as a disorder.