[Evaluation of the tinnitus retraining therapy as combined with a cognitive behavioral group therapy]

Prediction of treatment outcome in patients suffering from chronic tinnitus - from individual characteristics to early and long-term change

BACKGROUND AND OBJECTIVE

Despite the availability of successful treatment approaches for chronic tinnitus, it has proven difficult to predict who profits from treatment and it is still an open question if it is possible at all. We tried to overcome methodological shortcomings and to predict treatment outcome indicated by questionnaires measuring tinnitus distress.

METHODS

This is an observational, prospective cohort study. Lasso and post-selection inference methods were used to predict treatment outcome in patients suffering from chronic tinnitus (N = 747). Patients were treated for five consecutive days in an interdisciplinary setting according to guidelines.

RESULTS

Early change, i.e. a positive response after the screening day, as well as change due to treatment was predicted by several psychopathological variables, but also tinnitus-related factors. Female gender as an example was a predictor for change due to treatment. In general, therapy success both for early change and change due to treatment cannot be predicted satisfactorily as indicated by a high mean cross-validation error (for early change: 9.83, for change due to treatment: 14.40). Analyzing sub-groups separated by tinnitus severity to reduce heterogeneity did not improve the situation and for patients with high tinnitus severity no predictors at all could be reported (cross-validated error: 11.62 for the low quartile, 13.38 for the low-medium quartile, and 15.61 for the medium-high quartile).

CONCLUSION

Several psychopathological and tinnitus-related variables predicted early and long-term change. Nevertheless, also overcoming methodological shortcomings to predict treatment success did not lead to satisfactory results, but rather emphasizes the high heterogeneity of chronic tinnitus.

Psychophysiological treatment of chronic tinnitus: A review

Subjective chronic tinnitus consists of a more or less continuous perception of sound in the absence of a corresponding acoustic source, which can lead to various psychological problems like depression, anxiety, attentional deficits and sleep disturbances. The prevalence is 10%-15% of the general population. Various therapy and management options have been proposed, but outcomes vary, and no generally accepted cure exists. In this review, the coherence of the most frequently used aetiological models shall be evaluated, and the efficacy of several treatment options will be discussed. With respect to tinnitus treatments, we focus on controlled studies and meta-analyses. Although there are some therapies that outweigh placebo effects such as cognitive behavioural therapy, neurofeedback or neuromodulation techniques, they mainly target secondary symptoms and not the tinnitus tone itself. Furthermore, positive treatment effects only seem to last for a limited period of time. We conclude that long-lasting combination therapies such as neurofeedback of auditory cortex inhibitory EEG signatures, cognitive therapy and sound-tactile stimulation may provide more efficient outcomes if they target the intensity of the tinnitus tone itself and not only secondary psychological symptoms.

Cognitive behavioural therapy for tinnitus

BACKGROUND

Tinnitus affects up to 21% of the adult population with an estimated 1% to 3% experiencing severe problems. Cognitive behavioural therapy (CBT) is a collection of psychological treatments based on the cognitive and behavioural traditions in psychology and often used to treat people suffering from tinnitus.

OBJECTIVES

To assess the effects and safety of CBT for tinnitus in adults.

SEARCH METHODS

The Cochrane ENT Information Specialist searched the ENT Trials Register; CENTRAL (2019, Issue 11); Ovid MEDLINE; Ovid Embase; CINAHL; Web of Science; ClinicalTrials.gov; ICTRP and additional sources for published and unpublished trials. The date of the search was 25 November 2019.

SELECTION CRITERIA

Randomised controlled trials (RCTs) of CBT versus no intervention, audiological care, tinnitus retraining therapy or any other active treatment in adult participants with tinnitus.

DATA COLLECTION AND ANALYSIS

We used the standard methodological procedures expected by Cochrane. Our primary outcomes were the impact of tinnitus on disease-specific quality of life and serious adverse effects. Our secondary outcomes were: depression, anxiety, general health-related quality of life, negatively biased interpretations of tinnitus and other adverse effects. We used GRADE to assess the certainty of evidence for each outcome.

MAIN RESULTS

We included 28 studies (mostly from Europe) with a total of 2733 participants. All participants had had tinnitus for at least three months and their average age ranged from 43 to 70 years. The duration of the CBT ranged from 3 to 22 weeks and it was mostly conducted in hospitals or online. There were four comparisons and we were interested in outcomes at end of treatment, and 6 and 12 months follow-up. The results below only refer to outcomes at end of treatment due to an absence of evidence at the other follow-up time points. CBT versus no intervention/wait list control Fourteen studies compared CBT with no intervention/wait list control. For the primary outcome, CBT may reduce the impact of tinnitus on quality of life at treatment end (standardised mean difference (SMD) -0.56, 95% confidence interval (CI) -0.83 to -0.30; 10 studies; 537 participants; low certainty). Re-expressed as a score on the Tinnitus Handicap Inventory (THI; range 0 to 100) this is equivalent to a score 10.91 points lower in the CBT group, with an estimated minimal clinically important difference (MCID) for this scale being 7 points. Seven studies, rated as moderate certainty, either reported or informed us via personal communication about serious adverse effects. CBT probably results in little or no difference in adverse effects: six studies reported none and in one study one participant in the CBT condition worsened (risk ratio (RR) 3.00, 95% CI 0.13 to 69.87). For the secondary outcomes, CBT may result in a slight reduction in depression (SMD -0.34, 95% CI-0.60 to -0.08; 8 studies; 502 participants; low certainty). However, we are uncertain whether CBT reduces anxiety, improves health-related quality of life or reduces negatively biased interpretations of tinnitus (all very low certainty). From seven studies, no other adverse effects were reported (moderate certainty). CBT versus audiological care Three studies compared CBT with audiological care. CBT probably reduces the impact of tinnitus on quality of life when compared with audiological care as measured by the THI (range 0 to 100; mean difference (MD) -5.65, 95% CI -9.79 to -1.50; 3 studies; 444 participants) (moderate certainty; MCID = 7 points). No serious adverse effects occurred in the two included studies reporting these, thus risk ratios were not calculated (moderate certainty). The evidence suggests that CBT may slightly reduce depression but may result in little or no difference in anxiety or health-related quality of life (all low certainty) when compared with audiological care. CBT may reduce negatively biased interpretations of tinnitus when compared with audiological care (low certainty). No other adverse effects were reported for either group (moderate certainty). CBT versus tinnitus retraining therapy (TRT) One study compared CBT with TRT (including bilateral sound generators as per TRT protocol). CBT may reduce the impact of tinnitus on quality of life as measured by the THI when compared with TRT (range 0 to 100) (MD -15.79, 95% CI -27.91 to -3.67; 1 study; 42 participants; low certainty). For serious adverse effects three participants deteriorated during the study: one in the CBT (n = 22) and two in the TRT group (n = 20) (RR 0.45, 95% CI 0.04 to 4.64; low certainty). We are uncertain whether CBT reduces depression and anxiety or improves health-related quality of life (low certainty). CBT may reduce negatively biased interpretations of tinnitus. No data were available for other adverse effects. CBT versus other active control Sixteen studies compared CBT with another active control (e.g. relaxation, information, Internet-based discussion forums). CBT may reduce the impact of tinnitus on quality of life when compared with other active treatments (SMD -0.30, 95% CI -0.55 to -0.05; 12 studies; 966 participants; low certainty). Re-expressed as a THI score this is equivalent to 5.84 points lower in the CBT group than the other active control group (MCID = 7 points). One study reported that three participants deteriorated: one in the CBT and two in the information only group (RR 1.70, 95% CI 0.16 to 18.36; low certainty). CBT may reduce depression and anxiety (both low certainty). We are uncertain whether CBT improves health-related quality of life compared with other control. CBT probably reduces negatively biased interpretations of tinnitus compared with other treatments. No data were available for other adverse effects.

AUTHORS' CONCLUSIONS

CBT may be effective in reducing the negative impact that tinnitus can have on quality of life. There is, however, an absence of evidence at 6 or 12 months follow-up. There is also some evidence that adverse effects may be rare in adults with tinnitus receiving CBT, but this could be further investigated. CBT for tinnitus may have small additional benefit in reducing symptoms of depression although uncertainty remains due to concerns about the quality of the evidence. Overall, there is limited evidence for CBT for tinnitus improving anxiety, health-related quality of life or negatively biased interpretations of tinnitus.

Effects of Electrical Stimulation in Tinnitus Patients: Conventional Versus High-Definition tDCS

BACKGROUND

Contradictory results have been reported for transcranial direct current stimulation (tDCS) as treatment for tinnitus. The recently developed high-definition tDCS (HD tDCS) uses smaller electrodes to limit the excitation to the desired brain areas.

OBJECTIVE

The current study consisted of a retrospective part and a prospective part, aiming to compare 2 tDCS electrode placements and to explore effects of HD tDCS by matched pairs analyses.

METHODS

Two groups of 39 patients received tDCS of the dorsolateral prefrontal cortex (DLPFC) or tDCS of the right supraorbital-left temporal area (RSO-LTA). Therapeutic effects were assessed with the tinnitus functional index (TFI), a visual analogue scale (VAS) for tinnitus loudness, and the hyperacusis questionnaire (HQ) filled out at 3 visits: pretherapy, posttherapy, and follow-up. With a new group of patients and in a similar way, the effects of HD tDCS of the right DLPFC were assessed, with the tinnitus questionnaire (TQ) and the hospital anxiety and depression scale (HADS) added.

RESULTS

TFI total scores improved significantly after both tDCS and HD tDCS (DLPFC: P < .01; RSO-LTA: P < .01; HD tDCS: P = .05). In 32% of the patients, we observed a clinically significant improvement in TFI. The 2 tDCS groups and the HD tDCS group showed no differences on the evolution of outcomes over time (TFI: P = .16; HQ: P = .85; VAS: P = .20).

CONCLUSIONS

TDCS and HD tDCS resulted in a clinically significant improvement in TFI in 32% of the patients, with the 3 stimulation positions having similar results. Future research should focus on long-term effects of electrical stimulation.

Transition from Acute to Chronic Tinnitus: Predictors for the Development of Chronic Distressing Tinnitus

Background

Acute tinnitus and its transition to chronic tinnitus are poorly investigated, and factors associated with amelioration versus exacerbation are largely unknown. Aims of this study were to identify early predictors for the future development of tinnitus severity.

Method

Patients with tinnitus of no longer than 4 weeks presenting at an otolaryngologist filled out questionnaires at inclusion (T1), as well as 3 (T3), and 6 months (T4) after tinnitus onset. 6 weeks after onset, an interview was conducted over the phone (T2). An audiogram was taken at T1, perceived tinnitus loudness, and tinnitus-related distress were assessed separately and repeatedly together with oversensitivity to external sounds and the levels of depression and anxiety. Furthermore, coping strategies with illness were recorded.

Results

Complete remission until T4 was observed in 11% of the 47 participants, while voiced complaints at onset were stable in the majority. In the subgroup with a relevant level of depression at T1, tinnitus-related distress worsened in 30% until T4. For unilateral tinnitus, perceived loudness in the chronic condition correlated strongly with hearing loss at 2 kHz on the tinnitus ear, while a similar correlation was not found for tinnitus located to both ears or within the head.

Conclusion

Results suggest early manifestation of tinnitus complaints, and stress the importance of screening all patients presenting with acute tinnitus for levels of depression and tinnitus-related distress. Furthermore, hearing levels should be monitored, and use of hearing aids should be considered to reduce tinnitus loudness after having ascertained that sound sensitivity is within normal range.

Clinical trial on tonal tinnitus with tailor-made notched music training

Background

Tinnitus is a result of hyper-activity/hyper-synchrony of auditory neurons coding the tinnitus frequency, which has developed due to synchronous mass activity owing to the lack of inhibition. We assume that removal of exactly these frequencies from a complex auditory stimulus will cause the brain to reorganize around tonotopic regions coding the tinnitus frequency through inhibition-induced plasticity. Based on this assumption, a novel treatment for tonal tinnitus - tailor-made notched music training (TMNMT) - has been introduced and was tested in this clinical trial.

Methods

A randomized controlled trial in parallel group design was performed in a double-blinded manner. We included 100 participants with chronic, tonal tinnitus who listened to tailor-made notched music for two hours a day for three consecutive months. Our primary outcome measures were the Tinnitus Handicap Questionnaire and Visual Analog Scales measuring perceived tinnitus loudness, awareness, distress and handicap. Participants rated their tinnitus before and after the training as well as one month after cessation of the training.

Results

While no effect was found for the primary outcome measures, tinnitus distress, as measured by the Tinnitus Questionnaire, a secondary outcome measure, developed differently in the two groups. The treatment group showed higher distress scores while the placebo group revealed lower distress scores after the training. However, this effect did not reach significance in post-hoc analysis and disappeared at follow-up measurements. At follow-up, tinnitus loudness in the treatment group was significantly reduced as compared to the control group. Post hoc analysis, accounting for low reliability scores in the Visual Analog Scales, showed a significant reduction of the overall Visual Analog Scale mean score in the treatment group even at the post measurement.

Conclusion

This is the first study on TMNMT that was planned and conducted following the CONSORT statement standards for clinical trials. The current work is one more step towards a final evaluation of TMNMT. Already after three months the effect of training with tailor-made notched music is observable in the most direct rating of tinnitus perception – the tinnitus loudness, while more global measures of tinnitus distress do not show relevant changes.

Trial registration

Current Controlled Trials ISRCTN04840953; Trial registration date: 17.07.2013

[Tinnitus and psychiatric comorbidities]

Tinnitus is an auditory phantom phenomenon characterized by the sensation of sounds without objectively identifiable sound sources. To date, its causes are not well understood. The perceived severity of tinnitus correlates more closely to psychological and general health factors than to audiometric parameters. Together with limbic structures in the ventral striatum, the prefrontal cortex forms an internal "noise cancelling system", which normally helps to block out unpleasant sounds, including the tinnitus signal. If this pathway is compromised, chronic tinnitus results. Patients with chronic tinnitus show increased functional connectivity in corticolimbic pathways. Psychiatric comorbidities are common in patients who seek help for tinnitus or hyperacusis. Clinicians need valid screening tools in order to identify patients with psychiatric disorders and to tailor treatment in a multidisciplinary setting.

[On the interdisciplinary S3 guidelines for the treatment of chronic idiopathic tinnitus]

INTRODUCTION

Tinnitus is a frequent symptom, which, particularly in combination with comorbidities, can result in a severe disease-related burden. Chronic idiopathic tinnitus (CIT) is the most frequent type of tinnitus. A considerable number of treatment strategies are used to treat CIT-for many of which there is no evidence of efficacy. In order to enable scientific evidence-based treatment of CIT, German interdisciplinary S3 guidelines have recently been constructed for the first time. Here we present a short form of these S3 guidelines.

MATERIALS AND METHODS

The guidelines were constructed based on a meta-analysis of the treatment of chronic tinnitus performed by the authors. Additionally, a systematic literature search was performed in the PubMed and Cochrane Library databases. Furthermore, a systematic search for international guidelines was performed in Google, as well as in the Guidelines International Network and National Guideline Clearinghouse (USA) database. Evidence was classified according to the Oxford Centre for Evidence-Based Medicine system.

RESULTS

According to the guidelines, alongside counselling, manualized structured tinnitus-specific cognitive behavioral therapy (tCBT) with a validated treatment manual is available as evidence-based therapy. In addition, the guidelines recommend concurrent treatment of comorbidities, including drug-based treatment, where appropriate. Particularly important is treatment of anxiety and depression. Where a psychic or psychiatric comorbidity is suspected, further diagnosis and treatment should be performed by an appropriately qualified specialist (psychiatrist, neurologist, psychosomatic medicine consultant) or psychological psychotherapist. In cases accompanied by deafness or hearing loss bordering on deafness, cochlear implants may be indicated.

CONCLUSION

No recommendations can be made for drug-based treatment of CIT, audiotherapy, transcranial magnetic or electrical stimulation, specific forms of acoustic stimulation or music therapy; or such recommendations must remain open due to the lack of available evidence. Polypragmatic tinnitus treatment with therapeutic strategies for which there is no evidence of efficacy from controlled studies is to be refused.

Three years later: report on the state of well-being of patients with chronic tinnitus who underwent modified tinnitus retraining therapy

Successful management of patients with chronic tinnitus is an important health issue. One of the tinnitus management strategies used at our Tinnitus Center is a combination of tinnitus retraining therapy (TRT) with physiotherapy and psychological management [called modified TRT (MTRT)]. We have used this type of management for over a decade and have described the protocol in detail elsewhere. In the present study, we wanted to determine the effect of MTRT on the well-being of tinnitus patients 3 years after treatment onset. One hundred and thirty patients with chronic tinnitus were assessed using psychometric instruments immediately before 7-day MTRT, immediately after the therapy and 3 years later. Patients with very severe tinnitus-related distress associated with major depression and a risk of suicide were excluded from this study. MTRT resulted in a sustained reduction of tinnitus-related distress. Moreover, the quality of life of patients had increased, as assessed by a separate questionnaire. The effect of MTRT was influenced by the degree of tinnitus-related distress and by the patients' age, the latter being gender dependent. Hearing loss and tinnitus duration had only a minor influence on the therapeutic effect. Taken together, we report a positive change in the state of well-being of patients with chronic tinnitus measurable with various psychometric instruments 3 years after the onset of MTRT.

Gameplay as a source of intrinsic motivation in a randomized controlled trial of auditory training for tinnitus

Background

Previous studies of frequency discrimination training (FDT) for tinnitus used repetitive task-based training programmes relying on extrinsic factors to motivate participation. Studies reported limited improvement in tinnitus symptoms.

Purpose

To evaluate FDT exploiting intrinsic motivations by integrating training with computer-gameplay.

Methods

Sixty participants were randomly assigned to train on either a conventional task-based training, or one of two interactive game-based training platforms over six weeks. Outcomes included assessment of motivation, tinnitus handicap, and performance on tests of attention.

Results

Participants reported greater intrinsic motivation to train on the interactive game-based platforms, yet compliance of all three groups was similar (∼70%) and changes in self-reported tinnitus severity were not significant. There was no difference between groups in terms of change in tinnitus severity or performance on measures of attention.

Conclusion

FDT can be integrated within an intrinsically motivating game. Whilst this may improve participant experience, in this instance it did not translate to additional compliance or therapeutic benefit.

Trial Registration

ClinicalTrials.gov NCT02095262

Combined Central and Peripheral Stimulation for Treatment of Chronic Tinnitus

Background. Tinnitus is a common untreatable condition that originates from central maladaptive plasticity initiated by peripheral injury. Repetitive transcranial magnetic stimulation (rTMS), direct cochlear low-level laser therapy (LLLT), and acupuncture were tried for tinnitus treatment, but the results of these methods were clinically unsatisfactory. Objective. This study aimed to test the combined effect of the 3 methods targeting both peripheral and central auditory areas as a new therapeutic strategy for tinnitus. Methods. For this, 30 patients were randomized to 3 equal groups receiving 3 different interventions: inhibitory rTMS to the left auditory cortex, LLLT (which includes a combination of direct cochlear LLLT and laser acupuncture) to the affected ear(s), and finally, a combination of rTMS and LLLT. The Tinnitus Handicap Inventory (THI) and Visual Analogue Scale (VAS) were assessed before, immediately after, and at 2 weeks and 4 weeks after 10 consecutive every-other-day sessions for each intervention type. Results. We found that combined stimulation was effective in tinnitus treatment. This effect remained for 4 weeks after the end of the treatment. However, each of rTMS and LLLT alone had no significant effect. Repeated-measures ANOVA showed a significant effect of Time and Time × Intervention interaction for THI and VAS scores. The post hoc t test for different time points per intervention revealed a significant difference between baseline and all postintervention measurements of both THI and VAS for the combination intervention. Conclusion. Combined central rTMS and peripheral LLLT is more beneficial as a new method for management of tinnitus rather than these two used separately.

Older people's views on what they need to successfully adjust to life with a hearing aid

This article reports a study exploring what older people believe would enable them to adjust to and gain maximum benefit from wearing a hearing aid. A mixed methods approach was employed during 2006 involving interviews with key stakeholders, a survey across three Scottish health board areas and focus groups. Nine key stakeholders from six national and local organisations were interviewed about the needs of older people being fitted with hearing aids. In total, 240 older people belonging to three different types of hearing impaired older people were surveyed: long-term users of hearing aids, new hearing aid users, and those on a waiting list from urban and rural areas (response rate = 24%). A series of eight follow-up focus groups with 31 audiology patients was held. Health professionals appeared to neglect appropriate provision of information and overly rely on technological interventions. Of 154 older people already fitted with hearing aids, only 52% of hearing aid users reported receiving enough practical help post fitting and only 41% reported receiving enough support. Approximately 40% reported not feeling confident in the use of their aids or their controls. Older people wanted more information than they received both before and after hearing aid fitting. Information provision and attention to the psychosocial aspects of care are key to enabling older people to adjust and optimise hearing aid benefit.

Sound therapy (masking) in the management of tinnitus in adults

BACKGROUND

This is an update of a Cochrane Review first published in The Cochrane Library in Issue 12, 2010.Tinnitus is described as the perception of sound or noise in the absence of real acoustic stimulation. Numerous management strategies have been tried for this potentially debilitating, heterogeneous symptom. External noise has been used as a management tool for tinnitus, in different capacities and with different philosophical intent, for over a century.

OBJECTIVES

To assess the effectiveness of sound-creating devices (including hearing aids) in the management of tinnitus in adults. Primary outcome measures were changes in the loudness or severity of tinnitus and/or impact on quality of life. Secondary outcome measures were change in pure-tone auditory thresholds and adverse effects of treatment. 

SEARCH METHODS

We searched the Cochrane ENT Group Trials Register; CENTRAL; PubMed; EMBASE; CINAHL; Web of Science; BIOSIS Previews; Cambridge Scientific Abstracts; ICTRP and additional sources for published and unpublished trials. The date of the most recent search was 8 February 2012.

SELECTION CRITERIA

Prospective randomised controlled trials recruiting adults with persistent, distressing, subjective tinnitus of any aetiology in which the management strategy included maskers, noise-generating device and/or hearing aids, used either as the sole management tool or in combination with other strategies, including counselling.

DATA COLLECTION AND ANALYSIS

Two authors independently examined the 387 search results to identify studies for inclusion in the review, of which 33 were potentially relevant. The update searches in 2012 retrieved no further potentially relevant studies. Both authors extracted data independently.

MAIN RESULTS

Six trials (553 participants) are included in this review. Studies were varied in design, with significant heterogeneity in the evaluation of subjective tinnitus perception, with different scores, scales, tests and questionnaires as well as variance in the outcome measures used to assess the improvement in tinnitus sensation/quality of life. This precluded meta-analysis of the data. There was no long-term follow-up. We assessed the risk of bias as medium in three and high in three studies. Following analysis of the data, no significant change was seen in the loudness of tinnitus or the overall severity of tinnitus following the use of sound therapy compared to other interventions such as patient education, 'relaxation techniques', 'tinnitus coping strategies', counselling, 'tinnitus retraining' and exposure to environmental sounds. No side effects or significant morbidity were reported from the use of sound-creating devices.

AUTHORS' CONCLUSIONS

The limited data from the included studies failed to show strong evidence of the efficacy of sound therapy in tinnitus management. The absence of conclusive evidence should not be interpreted as evidence of lack of effectiveness. The lack of quality research in this area, in addition to the common use of combined approaches (hearing therapy plus counselling) in the management of tinnitus are, in part, responsible for the lack of conclusive evidence. Other combined forms of management, such as tinnitus retraining therapy, have been subject to a Cochrane Review. Optimal management may involve multiple strategies.

Tinnitus and insomnia: is hyperarousal the common denominator?

Tinnitus is an auditory sensation that is generated by aberrant activation within the auditory system. Sleep disturbances are a frequent problem in the tinnitus population. They are known to worsen the distress caused by the tinnitus which in turn worsens sleep quality. Beyond that, disturbed sleep is a risk factor for mental health problems and distressing tinnitus is often associated with enhanced depressivity, anxiety, and somatic symptom severity. Moreover there is evidence that therapies which alleviate tinnitus-related distress have a positive influence on sleep quality and help interrupt this vicious cycle. This suggests that distressing tinnitus and insomnia may both be promoted by similar physiological mechanisms. One candidate mechanism is hyperarousal caused by enhanced activation of the sympathetic nervous system. There is increasing evidence for hyperarousal in insomnia patients, and animal models of tinnitus and insomnia show conspicuous similarities in the activation pattern of limbic and autonomous brain regions. In this article we review the evidence for this hypothesis which may have implications for therapeutic intervention in tinnitus patients with comorbid insomnia.

Tinnitus: distinguishing between subjectively perceived loudness and tinnitus-related distress

OBJECTIVES

Overall success of current tinnitus therapies is low, which may be due to the heterogeneity of tinnitus patients. Therefore, subclassification of tinnitus patients is expected to improve therapeutic allocation, which, in turn, is hoped to improve therapeutic success for the individual patient. The present study aims to define factors that differentially influence subjectively perceived tinnitus loudness and tinnitus-related distress.

METHODS

In a questionnaire-based cross-sectional survey, the data of 4705 individuals with tinnitus were analyzed. The self-report questionnaire contained items about subjective tinnitus loudness, type of onset, awareness and localization of the tinnitus, hearing impairment, chronic comorbidities, sleep quality, and psychometrically validated questionnaires addressing tinnitus-related distress, depressivity, anxiety, and somatic symptom severity. In a binary step-wise logistic regression model, we tested the predictive power of these variables on subjective tinnitus loudness and tinnitus-related distress.

RESULTS

The present data contribute to the distinction between subjective tinnitus loudness and tinnitus-related distress. Whereas subjective loudness was associated with permanent awareness and binaural localization of the tinnitus, tinnitus-related distress was associated with depressivity, anxiety, and somatic symptom severity.

CONCLUSIONS

Subjective tinnitus loudness and the potential presence of severe depressivity, anxiety, and somatic symptom severity should be assessed separately from tinnitus-related distress. If loud tinnitus is the major complaint together with mild or moderate tinnitus-related distress, therapies should focus on auditory perception. If levels of depressivity, anxiety or somatic symptom severity are severe, therapies and further diagnosis should focus on these symptoms at first.

Psychological comorbidity in patients with chronic tinnitus: analysis and comparison with chronic pain, asthma or atopic dermatitis patients

PURPOSE

To determine the prevalence and severity of psychological comorbidity in patients with chronic tinnitus in comparison with other chronic illnesses, namely chronic pain, chronic asthma and atopic dermatitis.

METHODS

Psychological diagnoses were done according to ICD-10 Chapter V(F). Subjective impairment was evaluated using 5 psychometric questionnaires: tinnitus questionnaire, Berlin mood questionnaire, sense of coherence (SOC-L9) and perceived stress questionnaire. Sleep disturbance was measured by the subdomain 'exhaustion' of the Giessen physical complaints inventory.

RESULTS

Somatoform or affective disorders were most frequent in all disease groups. Patients with chronic tinnitus had a stronger SOC and better subjective mood, stronger commitment, and less anger and anxious depression than the patients with chronic pain, chronic asthma or atopic dermatitis. However, in patients with higher tinnitus annoyance, psychological comorbidity was similar to that found in patients with other chronic diseases.

CONCLUSIONS

Besides collecting medical and social history, special psychometric instruments should be used for the diagnosis of tinnitus patients. Based on relative high frequency of psychological comorbidity, we recommend interdisciplinary cooperation between otorhinolaryngologists and other specialists (psychosomatic medicine, psychology or psychiatry) during the treatment of tinnitus patients, especially when high degree of tinnitus annoyance is involved.

[TRT and psychotherapy in the treatment of tinnitus]

Basic requirements and results of tinnitus retraining therapy (TRT) as well as other habituation therapies with psychotherapeutic approaches in the treatment of tinnitus are examined closely in this literature review. In German-speaking countries experts generally aim for involvement of psychotherapists beyond the classic TRT developed by Jastreboff and Hazell. On the basis of a validated diagnostic test such as the Tinnitus Questionnaire according to Hiller and Goebel (1998), such a therapy regime is more effective than the "classic" procedure. Under different treatment approaches, cognitive behavioural therapy elements have been proven to be effective-even as a component of the TRT-as well as integrated variants in psychodynamic therapies. We have to give consideration to the fact that in all studies about the selection and inclusion criteria selective test conditions were established which suggest that in each case diverse patient groups were studied. In the overall picture it becomes apparent that depending on the severity of the tinnitus and accompanying hearing problems a dysfunction-oriented and staged approach makes sense.

Sound therapy (masking) in the management of tinnitus in adults

BACKGROUND

Tinnitus is described as the perception of sound or noise in the absence of real acoustic stimulation. Numerous management strategies have been tried for this potentially debilitating, heterogeneous symptom. External noise has been used as a management tool for tinnitus, in different capacities and with different philosophical intent, for over a century.

OBJECTIVES

To assess the effectiveness of sound-creating devices (including hearing aids) in the management of tinnitus in adults. Primary outcome measures were changes in the loudness or severity of tinnitus and/or impact on quality of life. Secondary outcome measures were change in pure-tone auditory thresholds and adverse effects of treatment. 

SEARCH STRATEGY

We searched the Cochrane ENT Group Trials Register; CENTRAL (2009, Issue 3); PubMed; EMBASE; CINAHL; Web of Science; BIOSIS Previews; Cambridge Scientific Abstracts; mRCT and additional sources for published and unpublished trials. The date of the most recent search was 11 September 2009.

SELECTION CRITERIA

Prospective randomised controlled trials recruiting adults with persistent, distressing, subjective tinnitus of any aetiology in which the management strategy included maskers, noise-generating device and/or hearing aids, used either as the sole management tool or in combination with other strategies, including counselling.

DATA COLLECTION AND ANALYSIS

Two authors independently examined the 362 search results to identify studies for inclusion in the review, of which 33 were potentially relevant. Both authors extracted data independently.

MAIN RESULTS

Six trials (553 participants) are included in this review. Studies were varied in design, with significant heterogeneity in the evaluation of subjective tinnitus perception, with different scores, scales, tests and questionnaires as well as variance in the outcome measures used to assess the improvement in tinnitus sensation/quality of life. This precluded meta-analysis of the data. There was no long-term follow up. We assessed the risk of bias as medium in three and high in three studies. No side effects or significant morbidity were reported from the use of sound-creating devices.

AUTHORS' CONCLUSIONS

The limited data from the included studies failed to show strong evidence of the efficacy of sound therapy in tinnitus management. The absence of conclusive evidence should not be interpreted as evidence of lack of effectiveness. The lack of quality research in this area, in addition to the common use of combined approaches (hearing therapy plus counselling) in the management of tinnitus are, in part, responsible for the lack of conclusive evidence. Other combined forms of management, such as Tinnitus Retraining Therapy, have been subject to a Cochrane Review. Optimal management may involve multiple strategies.

Cognitive behavioural therapy for tinnitus

BACKGROUND

This is an update of a Cochrane Review originally published in Issue 1, 2007 of The Cochrane Library.Tinnitus is an auditory perception that can be described as the experience of sound, in the ear or in the head, in the absence of external acoustic stimulation. Cognitive behavioural therapy (CBT) uses relaxation, cognitive restructuring of the thoughts and exposure to exacerbating situations in order to promote habituation and may benefit tinnitus patients, as may the treatment of associated psychological conditions.

OBJECTIVES

To assess whether CBT is effective in the management of patients suffering from tinnitus.

SEARCH STRATEGY

We searched the Cochrane Ear, Nose and Throat Disorders Group Trials Register; the Cochrane Central Register of Controlled Trials (CENTRAL); PubMed; EMBASE; CINAHL; Web of Science; BIOSIS Previews; Cambridge Scientific Abstracts; PsycINFO; ISRCTN and additional sources for published and unpublished trials. The date of the most recent search was 6 May 2010.

SELECTION CRITERIA

Randomised controlled trials in which patients with unilateral or bilateral tinnitus as their main symptom received cognitive behavioural treatment.

DATA COLLECTION AND ANALYSIS

One review author (PMD) assessed every report identified by the search strategy. Three authors (PMD, AW and MT) assessed the methodological quality and applied inclusion/exclusion criteria. Two authors (PMD and RP) extracted data and conducted the meta-analysis. The four authors contributed to the final text of the review.

MAIN RESULTS

Eight trials comprising 468 participants were included.For the primary outcome of subjective tinnitus loudness we found no evidence of a difference between CBT and no treatment or another intervention (yoga, education and 'minimal contact - education').In the secondary outcomes we found evidence that quality of life scores were improved in participants who had tinnitus when comparing CBT to no treatment or another intervention (education and 'minimal contact education'). We also found evidence that depression scores improved when comparing CBT to no treatment. We found no evidence of benefit in depression scores when comparing CBT to other treatments (yoga, education and 'minimal contact - education').There were no adverse/side effects reported in any trial.

AUTHORS' CONCLUSIONS

In six studies we found no evidence of a significant difference in the subjective loudness of tinnitus.However, we found a significant improvement in depression score (in six studies) and quality of life (decrease of global tinnitus severity) in another five studies, suggesting that CBT has a positive effect on the management of tinnitus.

Tinnitus psychopharmacology: A comprehensive review of its pathomechanisms and management

BACKGROUND

Subjective tinnitus is a frequent, impairing condition, which may also cause neurotransmitter imbalance at the cochlea. Psychopharmacologic agents, although not being the first-line treatment for tinnitus, may modulate cochlear neurotransmission, thereby influencing the subjective tinnitus experience.

METHOD

A comprehensive review of MEDLINE literature (from January 1990-January 2010) was performed searching for: "tinnitus", major classes of psychopharmacological agents, and psychiatric disorders. The most relevant clinical evidence is reported briefly along with a concise description of the main neurotransmitters purported to be involved in tinnitus, in order to provide the reader with a rational evaluation of tinnitus therapy with psychopharmacological agents.

RESULTS

Although strong methodological issues limit the reliability of the current results, a broad number of psychopharmacological agents have already been considered for tinnitus, both as candidate triggers or potential therapies.

CONCLUSIONS

Selected psychopharmacological drugs may play a role in the clinical management of this disorder. While the rational use of these agents for the treatment of tinnitus should not be overlooked, research should be undertaken on their neuromodulating actions at the cochlea.

[Neurootologic and psychosomatic habituation therapy. Treatment approaches in chronic tinnitus]

Modern tinnitus therapy, especially for chronic tinnitus accompanied by psychosomatic disturbances, is based on an understanding of the controlled network of auditory perception. The symptom of tinnitus derives from damage or defective coding in this system, mainly the inner ear. It becomes an independent disease as a result of disturbed auditory perception with pathologic evaluation and emotional association in the cortex. We present different therapeutic approaches based on these models. The therapy aims to eliminate or diminish the symptom of tinnitus through retraining, cognitive restructuring, or enhancement of efferent filter mechanisms in the auditory pathway. Psychosomatic stabilization of patients is an important preliminary condition for effective habituation; therefore, an integrative neurootologic and psychosomatic therapy is proposed that requires an interdisciplinary therapeutic team and can be mostly carried out in an outpatient setting.

Musiktherapie bei Tinnitus

BACKGROUND

Chronic tinnitus, one of the most common disorders in ENT medicine, requires comprehensive and interdisciplinary treatment.

OBJECTIVE

An innovative music therapy approach, developed at the German Center for Music Therapy Research in cooperation with the ENT clinic of the University of Heidelberg ("Heidelberg Model"), strives to integrate the tinnitus sound into a musically controllable acoustic process. The aim of the present study is to evaluate the effectiveness of this current treatment.

METHODS

We carried out a prospective, two-armed (music therapy group vs control group) study with 20 patients (10 males, 10 females; mean age 51+/-7 years), suffering from decompensated chronic tinnitus (mean score in the Tinnitus Questionnaire TQ=46.8+/-9.6). The target variables involved TQ values, pre- and post-measurements, and follow-up after 3 and 6 months.

RESULTS

Group comparison yields a highly statistically and clinically significant decrease in mean TQ-scores pre- and post in the music therapy group by 25 points or 52% on average as compared to 2 points (4%) in the control group [univariate ANOVA: (F(1,31)=14.19, P=0.001), effect size d=1.73]. Logarithmic regression analysis reveals a fast onset and long lasting effect of music therapy (B=-8.9; F(1,125)=32.11, P=0.000).

DISCUSSION

The effectiveness of this highly economic approach was proven as the innovative music therapy concept yields statistically and clinically significant results which remain stable throughout follow-up. Further investigations with larger sample sizes and using brain imaging should strengthen these findings.

[The role of stress in the pathogenesis of tinnitus and in the ability to cope with it]

Besides the impairment of somatic functions, other factors including stress, and psychological and social characteristics are known to be important factors in the pathogenesis of tinnitus and the ability to cope with it. Existing coping strategies and psychosocial factors may have an influence on the degree of stress perceived through tinnitus. In the case of missing habituation, serious psychological, neurological and immunological responses to tinnitus are possible. In order to reduce the cognitive and emotional tinnitus-distress associated with this, there should be a focus on providing functional coping strategies combined with cognitive behavioural elements.

Cognitive behavioural therapy for tinnitus

BACKGROUND

Tinnitus is an auditory perception that can be described as the experience of sound, in the ear or in the head, in the absence of external acoustic stimulation (not usually audible to anyone else). At present no specific therapy for tinnitus is acknowledged to be satisfactory in all patients. Cognitive behavioural therapy (CBT) uses relaxation, cognitive restructuring of the thoughts and exposure to exacerbating situations in order to promote habituation and may benefit tinnitus patients, as may the treatment of associated psychological conditions.

OBJECTIVES

To assess whether cognitive behavioural therapy is effective in the management of patients suffering from tinnitus.

SEARCH STRATEGY

Our search included the Cochrane ENT Group Trials Register, the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library Issue 2, 2006), MEDLINE and EMBASE. The last search date was June 2006.

SELECTION CRITERIA

Randomised controlled trials in which patients with unilateral or bilateral tinnitus as main symptom received cognitive behavioural treatment.

DATA COLLECTION AND ANALYSIS

One review author (PMD) assessed every report identified by the search strategy. The four review authors assessed the methodological quality, applied inclusion/exclusion criteria and extracted data.

MAIN RESULTS

Six trials comprising 285 participants were included. 1.

PRIMARY OUTCOME

subjective tinnitus loudness. CBT compared to a waiting list control group: we found no significant difference (Standardised Mean Difference (SMD) 0.06 (95% CI -0.25 to 0.37)). CBT compared to another intervention (Yoga, Education, Minimal Contact - Education and Education): we found no significant difference (SMD 0.1 (95% CI -0.22 to 0.42)).2.

SECONDARY OUTCOMES

a) Depression. CBT compared to a waiting list control group: we found no significant difference in either group (SMD 0.29 (95%CI -0.04 to 0.63)). CBT compared to another intervention (Yoga, Education and Minimal Contact - Education): we found no significant difference (SMD 0.01 (95% CI -0.43 to 0.45)). b) Quality of life: CBT compared to a waiting list control group: we found a significant difference in favour of CBT versus the waiting list group (SMD 0.7 (95% CI 0.33 to 1.08)). CBT compared to another intervention (Education, Minimal Contact - Education and Education): we also found a significant difference between CBT and the other intervention control group (SMD 0.64 (95% CI 0.29 to 1.00)). There were no adverse/side effects reported in any trial.

AUTHORS' CONCLUSIONS

We did not find a significant difference in the subjective loudness of tinnitus, or in the associated depression. However we found a significant improvement in the quality of life (decrease of global tinnitus severity) of the participants, thus suggesting that cognitive behavioural therapy has an effect on the qualitative aspects of tinnitus and contributes positively to the management of tinnitus.

Ericksonian hypnosis in tinnitus therapy: effects of a 28-day inpatient multimodal treatment concept measured by Tinnitus-Questionnaire and Health Survey SF-36

For the first time, the therapeutic effects on subacute and chronic tinnitus of an inpatient multimodal treatment concept based on principles of Ericksonian hypnosis (EH) were examined by standardized criteria of the Tinnitus Questionnaire (TQ) and Health Survey (SF-36) within a controlled prospective, longitudinal study. A total of 393 patients were treated within an inpatient closed-group 28-day-setting based on a resource-oriented, hypnotherapeutic concept. The severity of tinnitus was assessed by TQ at times of admission, discharge and also at a 6- and 12-month follow-up. Health-related quality of life was evaluated before and after therapy using the SF-36. After therapy, a decrease in TQ score was seen in 90.5% of the patients with subacute tinnitus and in 88,3% of those with chronic tinnitus. Assessment of the TQ score at the end of therapy revealed highly significant improvements of 15.9/14.1 points in mean. Effect sizes in the treatment groups (0.94/0.80) were superior to those in the waiting-list controls (0.14/0.23). The TQ score remained stable in the follow-up controls. Significant improvement in health-related quality of life has been observed within the treatment groups depending on initial level of tinnitus serverity I-IV according to TQ. Using a multimodal treatment concept with emphasis on resource-activating approaches of EH the annoyance of tinnitus can be significantly reduced while health-related quality of life is enhanced within a comparatively short treatment period of 28 days.

Outcomes of Long-Term Outpatient Tinnitus-Coping Therapy: Psychometric Changes and Value of Tinnitus-Control Instruments

OBJECTIVES

Increasing tinnitus compliance and coping are desirable aims of successful treatment in chronic tinnitus. However, application of established procedures such as tinnitus retraining therapy (TRT) is often relatively short. In addition, the value of tinnitus control instruments (TCI) is questionable, especially for minor severity levels of tinnitus, and the comparability of treatment results is low. To evaluate long-term changes of tinnitus-related distress, defined psychometric data were collected in patients with compensated tinnitus (cT) or decompensated tinnitus (dT) during a standardized 2-yr outpatient tinnitus-coping therapy (TCT).

DESIGN

In a prospective clinical investigation, the data of 70 tinnitus patients were recorded at the beginning and at 6-mo intervals, with a final investigation after 24 mo. The first group consisted of 40 patients with cT and dT who were randomly assigned to a treatment group and a waiting-list control group. After a period of 12 mo without treatment, the control group was treated similarly. The tinnitus questionnaire (TQ) of Goebel and Hiller, visual analog scales (VAS), and a severity questionnaire for tinnitus-associated complaints were used as psychodiagnostic instruments. Therapy components consisted of counseling, fitting patients with TCIs (TCI provision), auditory and relaxation training, and psychosomatic care if necessary. A second group of 30 patients with cT receiving TCT without TCI devices was investigated to evaluate the additive efficacy of TCI in cT.

RESULTS

The initial TQ score did not differ between the treatment group and the waiting-list control group. After 12 mo, the control group did not show any significant changes, but the treatment group had improved significantly. During TCT, the combined data of both groups showed a statistically significant decrease of the TQ score in dT (59.1 to 34.8) and cT (32.8 to 24.0). These changes were especially reflected by the subscales of cognitive and emotional distress and also by the VAS and the severity questionnaire. dT patients benefitted without dependence on age or duration of pre-existing tinnitus; for cT patients, this was true mainly of the younger and older subjects and for tinnitus lasting for less than 1 yr. TCI provision improved the efficacy of TCT in patients with cT.

CONCLUSIONS

The psychometric changes demonstrate a clear decrease of tinnitus-related distress in all severity levels of sufficiently treated chronic tinnitus. Long-term TCT induces improvement even up to the time of 24 mo. With TCIs established particularly in patients with dT, our results suggest that a supporting adjustment of TCI devices is helpful in cT to foster quicker rehabilitation. The outpatient interdisciplinary TCT, consisting of cognitive tinnitus desensitization, TCI provision, and psychosomatic support if required, represents a successful treatment strategy for both dT and cT patients.

15-year prospective follow-up study of behavioral therapy in a large sample of inpatients with chronic tinnitus

CONCLUSION

The results of this study are in accordance with the assumption that cognitive-oriented therapy enabling the patient to live with tinnitus is of primary importance to enhance quality of life.

BACKGROUND AND OBJECTIVES

This study describes the success of an integrative behavioral-medicine inpatient treatment for complex chronic tinnitus and presents its long-term effects. In 1987 we developed and evaluated a new treatment concept of psychological treatment of complex chronic tinnitus based on international experience and results. To evaluate the influence, effects and individual results of the specific therapy we analyzed the data of 434 consecutively treated patients. To investigate the long-term effects of the treatment, we contacted the patients 15 years after discharge from the hospital.

PATIENTS AND METHODS

We used the tinnitus questionnaire (TQ) and visual analog scales (VAS) for specific tinnitus variables (loudness, discomfort, control of tinnitus, stress, general mood). The German version of the Derogatis psychopathology checklist (SCL-90-R) was used to analyze the impact of additional symptoms (depression, anxiety, introversion, etc.).

RESULTS

Compared with a control group (patients on a waiting list) significant and clinically relevant effects were found. At the outcome, there were significant improvements in almost all parameters measured. For evaluation of the long-term effect we succeeded in contacting 312 of 434 former patients. Data were assessed using the same questionnaires that had been employed at the first contact. In all, 271 patients (86%) returned the questionnaires. Data for 244 cases (mean age 63 years; 79 females, 165 males) were complete enough to be used for data analysis. The results of the follow-up were as unexpected as clear: 15 years after conclusion of the treatment, the improvements of the tinnitus parameters and additional symptoms were stable when compared with the end of therapy.

Neuronavigierte repetitive transkranielle Magnetstimulation (rTMS)

BACKGROUND AND OBJECTIVE

Idiopathic tinnitus is a frequent and debilitating disorder of largely unknown pathophysiology. Focal brain activation in the auditory cortex has recently been demonstrated in chronic tinnitus. Low-frequency rTMS can reduce cortical hyperexcitability.

PATIENTS AND METHODS

In 12 patients with chronic tinnitus, fusion of [18F]deoxyglucose-PET and structural MRI (T1, MPRAGE) scans allowed the area of increased metabolic activity in the auditory cortex to be exactly identified; this area was selected as the target for rTMS. A neuronavigational system adapted for TMS positioning enabled the relative positions of the figure-8 coil and the target area to be monitored. Repetitive TMS (110% motor threshold; 1 Hz; 2000 stimuli per day over 5 days) was performed using a placebo-controlled crossover design. A sham coil system was used for the placebo stimulation. Treatment outcome was assessed with a specific tinnitus questionnaire (Goebel and Hiller).

RESULTS

In all 12 patients an asymmetrically increased metabolic activation of the gyrus of Heschl was detected. The tinnitus score was significantly improved after 5 days of active rTMS, an effect not seen after placebo stimulation.

CONCLUSION

These preliminary results show that neuronavigated rTMS may improve our understanding and treatment of chronic tinnitus.

A modified version of tinnitus retraining therapy: observing long-term outcome and predictors

Tinnitus retraining therapy (TRT) in Germany includes not only directive counseling and sound therapy but also stress management and facultative psychotherapeutic treatment. The aim of the present study was to investigate the impact of this modified version of TRT on certain tinnitus-related aspects of distress and variables that may predict treatment outcome. Clinical data from 92 patients undergoing outpatient TRT in the Charité Tinnitus Centre were evaluated retrospectively over 1 year. Treatment outcome was defined by changes in specific areas of tinnitus-related distress and assessed by the Tinnitus Questionnaire. Changes in audiometric frequency and loudness of tinnitus were examined by regular audiometric testing. The overall Tinnitus Questionnaire score was significantly reduced after 1 year. Severely affected tinnitus sufferers (decompensated tinnitus) profited more than less affected patients (compensated tinnitus). In cases of indicated psychotherapy, improvement was significant for the patients who took advantage of psychotherapeutic treatment during TRT but was not significant for those who interrupted or dismissed an indicated psychotherapy. Changes in tinnitus-specific areas of distress were most pronounced in the scales for emotional and cognitive distress and intrusiveness. Significant changes in sleep disturbances, auditory perceptual difficulties and somatic complaints were observed in patients with decompensated tinnitus. In patients with chronic tinnitus, modified TRT may lead to significant subjective improvement in certain tinnitus-related symptoms like emotional and cognitive distress and intrusiveness. Particularly patients suffering from severe tinnitus distress take advantage of therapy. Careful psychotherapeutic diagnostics and therapies and, if necessary, motivation to make use of psychotherapy seem to be essential preconditions for therapeutic success in patients with severe psychosomatic comorbidity.

Validity and reliability study of three tinnitus self-assessment scales: loudness, annoyance and change

CONCLUSIONS

The three tinnitus self-rating scales described herein can be employed as part of "minimal datasets" to reflect the patient's current tinnitus status. These tests are simple and easy to use and can be completed by the patient alone. The results are easy to interpret and provide a good foundation for an effective doctor-patient dialogue.

OBJECTIVE

To investigate the reliability and validity of three tinnitus self-rating scales: a six-point response scale for tinnitus loudness; an eight-point response scale for tinnitus annoyance; and a six-point response scale for tinnitus change.

MATERIAL AND METHODS

The data for 273 patients participating in 2 separate studies were assessed in terms of their validity and reliability. We used criterion validity to determine whether the scales had empirical associations with external criteria, in this case an already firmly established tinnitus questionnaire. In addition we examined construct validity, i.e. its subcategories convergent and discriminant validity, in order to find out how related or unrelated items or scales were. We tested the reliability and repeatability of the scales using patients on our waiting list for tinnitus desensitization.

RESULTS

The test-retest reliability was 0.72 for tinnitus loudness and 0.62 for tinnitus annoyance. Calculations showed that all three scales correlated positively with validated complex scales and thus we considered convergent validity to be adequate.

[Assessment of motivational changes in tinnitus sufferers. A study of the transtheoretical model]

OBJECTIVES

Cognitive-behavioural treatment of chronic tinnitus needs active cooperation and motivation in patients. The transtheoretical model (TTM) defines the behavioural change using six different stages of change (SoC). In this study, we examined SoC in patients with tinnitus via a new self-rating instrument.

SAMPLE AND METHODS

An item-pool, consisting of 48 questions, was administered to 125 tinnitus sufferers in a cross-sectional study. In addition to data on tinnitus history, the tinnitus strain (THI, German: TB-12), scores of anxiety and depression (HADS-D), and life quality (SF-12) were assessed.

RESULTS

Four SoC could be identified empirically: (1) precontemplation, (2) contemplation/preparation, (3) action/maintenance, and (4) termination. Associations of the SoC with socio-demographic and tinnitus related data, as well as with the instruments applied, conformed with the theory.

CONCLUSIONS

The results confirm the transfer of SoC theory to patients with tinnitus.

[Attention diversion in tinnitus therapy. Comparison of the effects of different treatment methods]

BACKGROUND

Diversion or distraction of auditory attention is a core principle of tinnitus retraining therapy as introduced by P. Jastreboff and J. Hazell. The aim of this study was to evaluate the effectiveness of a different form of attention diversion in tinnitus therapy.

METHODS AND PATIENTS

In a prospective and randomized study, 40 patients suffering from chronic tinnitus were assigned to two different groups, A or B. All patients received appropriate counselling and were instructed in relaxation training. Patients in group A learned to distract attention away from the tinnitus by using sound or music. White noise generators or hearing aids were applied in this group. Patients in group B were instructed to direct their attention away from the tinnitus using imagination that was facilitated by the use of light and warmth stimuli as distracters. Different standardized questionnaires were used for an evaluation of therapy effectiveness.

RESULTS

In both groups, patients were significantly less annoyed and disabled by their tinnitus immediately after therapy and after 6 months. Tinnitus annoyance still proved to be reduced 1 year after the end of the therapy. There were no significant differences in the effects of each treatment.

CONCLUSIONS

Attention diversion is an important method for decreasing tinnitus-related distress. Patients should be instructed to use not only auditory but also visual and thermal sensations in order to distract attention away from their tinnitus.

Cognitive tinnitus sensitization: behavioral and neurophysiological aspects of tinnitus centralization

OBJECTIVE

Acquired centralized tinnitus (ACT) is the most frequent type of chronic tinnitus. We introduce a cognitive neurophysiological ACT hypothesis based on centralized cognitive sensitization processes.

MATERIAL AND METHODS

Published cognitive sensitization processes were reviewed using PubMed. Furthermore, a Cochrane analysis was performed.

RESULTS

Patients frequently perceive tinnitus as being extremely loud although audiological tinnitus-matching measures reveal that its loudness levels are low. An important principle of central tinnitus processing is that individual tinnitus appraisal is directly linked to neuronal networks in the brain responsible for the production of emotions and cognitions. Cognitive processes may be associated with a reduction in the tinnitus cognition threshold, resulting in hypersensitivity of cognition. The underlying mechanism is known as sensitization and is suggested to be a specific learning process.

CONCLUSIONS

ACT may be associated with a specific learning process allowing increased tinnitus awareness and continuous appraisal. The underlying mechanism, the cognitive tinnitus sensitization process, is associated with a decrease in the tinnitus cognition threshold. The sensitization contributes to the extremely loud cognition of the tinnitus signal. The associated audiological cognitive discrepancy can be used clinically and diagnostically to identify patients for cognitive testing. The sensitization model does not require tinnitus hyperactivity.