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Introduction: Migraine, a debilitating neurological disorder characterized by recurrent headaches, affects over 1.1 billion individuals globally. Diabetes mellitus (DM), a chronic metabolic condition marked by high blood sugar levels, affects 463 million individuals according to the International Diabetes Federation. Our study aimed to evaluate the association between migraine and DM and to identify several demographic, socioeconomic, and lifestyle factors, as well as medical and psychiatric comorbidities, associated with migraine among individuals with DM. Methods: This cross-sectional study is based on data from the European Health Interview Surveys conducted in 2009, 2014, and 2019 in Hungary. Pearson's chi-squared tests and multiple logistic regression models were used to assess associations. Statistical significance was set at p<0.05. Results: In multiple regression analyses, we found no significant association between DM and migraine after adjusting for socioeconomic status, various health conditions, and lifestyle factors (OR=0.84, 95% CI: 0.66-1.06). However, adults with DM who had comorbid conditions including stroke (OR=2.08, 95% CI: 1.06-4.08), low back pain (OR=3.52, 95% CI: 2.13-5.84), and depression (OR=4.91, 95% CI: 2.84-8.47) were significantly more likely to suffer from migraine. Discussion: Our study found no significant difference in the prevalence of migraine among adults with and without diabetes mellitus. However, several comorbidities were found to be significantly associated with migraine occurrence in those with DM. Thus, the study's results highlight the need for proper management of diabetes, especially in terms of comorbidities, to mitigate migraine risk factors and improve patient outcomes.

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BACKGROUND: Migraine is one of the most common primary headaches worldwide, while toothache is the most common pain in the orofacial region. The association of migraine pain, and oral pain is unknown. This study aims to investigate the association between migraine and dental and gingival pain with the presence of allodynia. METHODS: A questionnaire comprising demographic data with the ID-Migraine (IDM) tool, an Allodynia Symptom Checklist (ASC), and inquiries about pain and sensitivity in the teeth and gums during migraine attacks was administered to the participants and 762 responded the survey. The study classified participants based on the ASC, and the relationship between allodynia and pain/sensitivity in the teeth and/or gums during migraine attacks was analyzed. The statistical analyses utilized Chi-square tests and the Fisher-Exact test. RESULTS: Among 762 migraine patients, 430 (56.44%) were classified as allodynia (+), while 332 (43.56%) were classified as allodynia (-) (p < 0.001). Additionally, 285 participants (37.5%) reported experiencing pain and sensitivity in the teeth and gums during migraine attacks, with a significant relationship observed between allodynia and pain/sensitivity in the teeth and/or gums during migraine attacks (p < 0.001). CONCLUSION: The findings of this study have important clinical implications. For migraine patients who are non-allodynic, the presence of pain and sensitivity in their teeth and gums during migraine attacks may indicate underlying dental diseases or the need for dental treatment especially root canal treatment. However, for allodynic patients, such symptoms may not necessarily indicate the presence of dental diseases or the need for dental treatment especially root canal treatment. These results underscore the significance of considering the presence of allodynia in the assessment and management of oral symptoms during migraine attacks.

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Sleep disorders have a high comorbidity rate with vestibular diseases. The results of some small sample clinical studies have confirmed the effect of sleep deprivation on vestibular function. However, the mechanism of the effect of sleep disorder on vestibular system is still unclear. This article analyzes the possible mechanism of the effect of sleep disorders on vestibular function from the aspects of neuroanatomy and neurotransmitters, and summarizes the relationship between sleep disorder and benign paroxysmal positional vertigo, Meniere's disease, vestibular migraine and other diseases.

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BACKGROUND: The present study aimed to assess the burden of neck pain in adults with migraine and tension-type headache (TTH), utilizing the Neck Disability Index (NDI) and Numeric Pain Rating Scale (NPRS). METHODS: A systematic literature search was conducted on PubMed and Embase to identify observational studies assessing NDI and NPRS in populations with migraine or TTH. The screening of articles was independently performed by two investigators (HMA and ZA). Pooled mean estimates were calculated through random-effects meta-analysis. The I2 statistic assessed between-study heterogeneity, and meta-regression further explored heterogeneity factors. RESULTS: Thirty-three clinic-based studies met the inclusion criteria. For participants with migraine, the pooled mean NDI score was 16.2 (95% confidence interval (CI) = 13.2-19.2, I2 = 99%). Additionally, the mean NDI was 5.5 (95% CI = 4.11-6.8, p < 0.001) scores higher in participants with chronic compared to episodic migraine. The pooled mean NDI score for participants with TTH was 13.7 (95% CI = 4.9-22.4, I2 = 99%). In addition, the meta-analysis revealed a mean NPRS score of 5.7 (95% CI = 5.1-6.2, I2 = 95%) across all participants with migraine. CONCLUSIONS: This systematic review and meta-analysis shows a greater degree of neck pain-related disability in migraine compared to TTH. Nevertheless, the generalizability of these findings is constrained by methodological variations identified in the current literature.

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OBJECTIVE: To investigate the impact of migraine on the tinnitus-specific health-related quality of life (HRQOL) and psychiatric comorbidities in patients with tinnitus. METHODS: This cross-sectional study included 227 consecutive patients with tinnitus as their primary complaint. Patients who were diagnosed as having comorbid migraine were asked whether their tinnitus exacerbated during attacks of migraine. All the patients completed three questionnaires: the Tinnitus Handicap Inventory (THI), the Hearing Handicap Inventory for Adults (HHIA) or its counterpart for the Elderly (HHIE), and the Hospital Anxiety and Depression Scale (HADS). RESULTS: Among the 227 tinnitus patients, 60 (26.4%) had comorbid migraine. There were no significant differences in the THI or HHIA/HHIE scores between patients with migraine and those without migraine (both p > 0.05). The HADS score was significantly higher in patients with migraine than those without migraine (p < 0.05).Out of the 60 tinnitus patients with comorbid migraine, 27 (45.0%) experienced exacerbation of tinnitus during migraine attacks. Patients whose tinnitus exacerbated during migraine attacks had significantly higher scores in THI, HHIA/HHIE, and HADS compared to those whose tinnitus did not change during migraine attacks (p < 0.05 for THI and HADS, p < 0.01 for HHIA/HHIE). CONCLUSION: The presence of migraine did not affect the tinnitus-specific HRQOL in tinnitus patients but had significant impacts on their psychiatric comorbidities. However, in patients who experienced exacerbation of tinnitus during migraine attacks, the presence of migraine had a significant impact on the tinnitus-specific HRQOL, hearing handicap, and psychiatric comorbidities.

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BACKGROUND: Managing acute vertigo/dizziness for inpatients requires valid communication between the various healthcare professionals that triage such life-threatening presentations, yet there are no current scaling methods for managing such acute vertigo symptoms for inpatients. OBJECTIVE: To describe the development and validation of the Krems Acute Vertigo/Dizziness Scale (KAVEDIS), a new instrument for tracking subjective symptoms (vertigo, dizziness) and gait impairment across four unique vestibular diagnoses (Menière's disease, benign paroxysmal positional vertigo, peripheral vestibular hypofunction, and vestibular migraine) over a one-year period after inpatient hospital admission. METHODS: Retrospective data collection study from KAVEDIS scale and chart documentation. RESULTS: The KAVEDIS scale can significantly distinguish scores from admission to discharge in three of four vestibular diagnoses. The documented course of subjective vestibular symptoms and gait disturbances were correlated in all four groups. CONCLUSION: We suggest that KAVEDIS documentation among inpatients admitted with acute vertigo/dizziness may improve communication between the various intervening clinicians and help to raise concern in cases of symptomprogression.

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BACKGROUND: To improve diagnostic precision in pediatric vertigo, particularly in Vestibular Migraine of Childhood (VMC), probable VMC (pVMC), Recurrent Vertigo of Childhood (RVC), and unspecified categories, by delineating clinical characteristics and prevalence to refine diagnostics and treatments. METHODS: Retrospective analysis of 102 pediatric patients (five to 18 years; 46 females, 56 males) at the Dizziness Center of the Otolaryngology Department in a tertiary-level hospital from January 2019 to December 2023. Patients were classified into VMC, pVMC, RVC, and indeterminate groups. Evaluations included audiometry and vestibular tests (video head impulse test [vHIT] or caloric testing), conducted in the audiology unit and vestibular testing laboratory. Data were analyzed using IBM SPSS 20.0. RESULTS: Diagnoses were 8.8% VMC, 31.4% pVMC, 51.0% RVC, and 8.8% indeterminate. Nausea and vomiting were common in VMC and pVMC; cochlear symptoms like tinnitus and hearing loss predominated in VMC. Although vestibular testing showed no significant group differences, VMC had more vHIT abnormalities and RVC had more caloric test anomalies. CONCLUSIONS: This study highlights the need for comprehensive diagnostics in pediatric vestibular disorders, revealing unique and overlapping traits across VMC, pVMC, and RVC. Insights call for further research to refine diagnostic criteria and improve treatment methods.

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Associations between migraine and retinal vascular occlusion have been reported, but there is no large-scale and comprehensive study. Therefore, we aimed to determine risks of retinal vascular occlusion in patients with migraine. Using the Taiwan National Health Insurance Research Database from 2009 to 2020, we enrolled 628,760 patients with migraine and 628,760 matched individuals without migraine. Study outcomes were diagnoses of retinal vascular occlusion, including retinal artery occlusion (RAO) and retinal vein occlusion (RVO). Adjusted hazard ratio (aHR) of retinal vascular occlusion related to migraine was estimated. The cumulative incidences of subsequent retinal vascular occlusion, RAO, and RVO were significantly higher in migraine patients compared with controls (0.31% vs. 0.21%; 0.09% vs. 0.05%; 0.22% vs. 0.17%; all p < 0.001). The hazards of retinal vascular occlusion, RAO, and RVO were significantly greater in the migraine group (aHR, 1.69 [95% CI, 1.57, 1.83], 2.13 [95% CI, 1.84, 2.48] and 1.53 [95% CI, 1.40, 1.68], respectively). Risks of retinal vascular occlusion were significantly higher in migraine both with aura (MA) and without aura (MO) (aHR, 1.77 [95% CI, 1.58, 1.98], and 1.92 [95% CI, 1.64, 2.25]). Among patients with migraine, nonsteroidal anti-inflammatory drugs, propranolol, and flunarizine significantly reduce their risks of retinal vascular occlusion (aHR, 0.19 [95% CI, 0.16, 0.22], 0.73 [95% CI, 0.62, 0.86], 0.84 [95% CI, 0.76, 0.93]). Migraine, MA and MO are independently associated with higher risks of retinal vascular occlusion, RAO, and RVO.

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West Nile Virus (WNV) infection is a clinical picture that is transmitted from wild birds, its natural host, to humans through mosquitoes and generally shows an asymptomatic course. Influenza-like WNV fever is frequently seen in symptomatic individuals, and a neuroinvasive course is more rarely observed. Neuroinvasive WNV has a broad-spectrum profile of neurological signs and symptoms. WNV meningitis is one of the most common neuroinvasive forms of WNV, and it does not differ clinically and radiologically from other viral meningitis. Secondary headaches, which can mimic primary headaches, are an infectious factor that should be kept in mind in the etiology, especially in cases presenting in the summer months. In this study, a case of WNV meningitis presenting with a headache of migrainous character is presented.

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OBJECTIVE: To study the features of the primary forms of headache in patients with a confirmed diagnosis of multiple sclerosis (MS). MATERIAL AND METHODS: A total of 110 patients with MS were examined in the outpatient appointment of a neurologist at the Department of Neurology and Neurosurgery of the «Smolensk State Medical University¼ in the period from April 1, 2023 to May 31, 2023. A group of 20 people with a diagnosis of primary headache (PH) was selected. At the same time, a control group of 20 people with a diagnosis of PH was selected on the basis of the Center for Industrial Medicine of the Federal State Medical Institution MSU No. 135, Desnogorsk. The analysis of complaints, anamnestic, laboratory data, neurological status and test results on specialized scales was carried out. RESULTS: Migraine was the most frequent type of headache in MS patients (in a ratio of 5.6:1 compared to tension headache) and was observed in 17 (85%) MS patients. Tension headache was diagnosed only in 3 (15%) patients (p=0.002). Headache was significantly more common in the remitting form of MS (p=0.046). Age, total cholesterol level, EDSS level, type of MS disease-modifying therapy were not associated with the risk of developing headache. When comparing the population of patients with MS and PH with the control group on the anxiety and depression scale and the MoCA test, statistically significant differences were obtained (p<0.05). CONCLUSION: PH were diagnosed in 18.2% of patients with MS, with a much higher prevalence of migraines than tension headache. In addition, female gender and the type of MS are significantly associated with the risk of migraine. Migraine, as a comorbid condition, can aggravate cognitive impairment in patients with MS, characterized by a lower value of the MoCA scale, especially together with the progression of anxiety and depressive disorders. These findings indicate the need for a larger epidemiological study to accurately assess the prevalence of PH in patients with MS in the Smolensk region.

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OBJECTIVE: Gastroesophageal reflux disease (GERD) and migraine are public health concerns worldwide. No observational study has conclusively elucidated the causal relationship between these two conditions. We employed Mendelian randomization (MR) methods to explore the potential causal links between GERD and migraine. METHODS: Genome-wide association studies were subjected to MR to infer the causality between GERD and migraine. Bidirectional two-sample MR was performed to establish causal relationships. Multivariable MR analysis was conducted to adjust potential confounding factors, and mediation MR analysis was utilized to assess the role of depression between GERD and migraine as a mediator. We primarily utilized the inverse variance weighted method (IVW) and sensitivity analysis methods, including MR-Egger, weighted median, and leave-one-out methods. We assessed heterogeneity and pleiotropy to ensure the reliability of the results. RESULTS: Bidirectional two-sample MR revealed a positive causal effect of GERD on migraine (IVW: OR = 1.49, 95% CI: 1.34-1.66, p = 3.70E-13). Migraine did not increase the risk of GERD (IVW: OR = 1.07, 95% CI: 0.98-1.17, p = 0.1139). Multivariable MR indicated that the positive causal effect of GERD on migraine remained after adjustment for factors, such as smoking, alcohol consumption, obesity, type 2 diabetes, and depression. Mediation MR revealed that depression mediated 28.72% of GERD's effect on migraine. MR analysis was supported by all sensitivity analyses and was replicated and validated in another independent dataset on migraine. CONCLUSION: Our findings elucidate the positive causal effect of GERD on migraine and underscores the mediating role of depression in increasing the risk of migraine due to GERD. Effective control of GERD, particularly interventions targeting depression, may aid in preventing the occurrence of migraine. Future research should delve deeper into the specific pathophysiological mechanisms through which GERD affects migraine risk, facilitating the development of more effective drug targets or disease management strategies.

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BACKGROUND: There is an association between migraine and dementia, however, their causal relationship remains unclear. This study employed bidirectional two-sample Mendelian randomization (MR) to investigate the potential causal relationship between migraine and dementia and its subtypes: Alzheimer's disease (AD), vascular dementia (VaD), frontotemporal dementia (FTD), and dementia with Lewy bodies (DLB). METHODS: Summary-level statistics data were obtained from publicly available genome-wide association studies (GWAS) for both migraine and five types of dementia. Single nucleotide polymorphisms (SNPs) associated with migraine and each dementia subtype were selected. MR analysis was conducted using inverse variance weighting (IVW) and weighted median (WM) methods. Sensitivity analyses included Cochran's Q test, MR pleiotropy residual sum and outlier (MR-PRESSO) analysis, the intercept of MR-Egger, and leave-one-out analysis. RESULTS: Migraine showed a significant causal relationship with AD and VaD, whereas no causal relationship was observed with all-cause dementia, FTD, or DLB. Migraine may be a potential risk factor for AD (odds ratio [OR]: 1.09; 95% confidence interval [CI]: 0.02-0.14; P = 0.007), while VaD may be a potential risk factor for migraine (OR: 1.04; 95% CI: 0.02-0.06; P = 7.760E-5). Sensitivity analyses demonstrated the robustness of our findings. CONCLUSION: Our study suggest that migraine may have potential causal relationships with AD and VaD. Migraine may be a risk factor for AD, and VaD may be a risk factor for migraine. Our study contributes to unraveling the comprehensive genetic associations between migraine and various types of dementia, and our findings will enhance the academic understanding of the comorbidity between migraine and dementia.

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OBJECTIVE: To report a fatal case of Susac syndrome in a congenitally deaf patient with a cochlear implant and a history of migraines, emphasizing the diagnostic challenges in patients with preexisting conditions. PATIENT: A 33-year-old male with congenital hearing loss, a cochlear implant, and chronic migraines who presented with mild subacute auditory disturbance and headaches that later progressed to severe encephalopathy. INTERVENTION: Explantation of a non-magnetic resonance imaging (MRI) compatible cochlear implant followed by MRI, fundoscopy, and the administration of immunosuppressive medications. MAIN OUTCOME MEASURES: Diagnosis was confirmed by characteristic MRI appearance and the presence of a hemi-retinal artery occlusion. RESULTS: After weeks of immunosuppressive treatment, the patient died of a global cerebral ischemic event of unknown origin. CONCLUSIONS: For patients with preexisting sensorineural hearing loss and cochlear implants, Susac syndrome poses a diagnostic challenge. Auditory disturbances in the absence of cochlear implant failure should prompt further evaluation for visual disturbances and encephalopathy. MRI and fundoscopy should be performed to detect other features of the disease.

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BACKGROUND: Migraine is a neurological disease with a significant genetic component and is characterized by recurrent and prolonged episodes of headache. Previous epidemiological studies have reported a higher risk of dementia in migraine patients. Neuroimaging studies have also shown structural brain atrophy in regions that are common to migraine and dementia. However, these studies are observational and cannot establish causality. The present study aims to explore the genetic causal relationship between migraine and dementia, as well as the mediation roles of brain structural changes in this association using Mendelian randomization (MR). METHODS: We collected the genome-wide association study (GWAS) summary statistics of migraine and its two subtypes, as well as four common types of dementia, including Alzheimer's disease (AD), vascular dementia, frontotemporal dementia, and Lewy body dementia. In addition, we collected the GWAS summary statistics of seven longitudinal brain measures that characterize brain structural alterations with age. Using these GWAS, we performed Two-sample MR analyses to investigate the causal effects of migraine and its two subtypes on dementia and brain structural changes. To explore the possible mediation of brain structural changes between migraine and dementia, we conducted a two-step MR mediation analysis. RESULTS: The MR analysis demonstrated a significant association between genetically predicted migraine and an increased risk of AD (OR = 1.097, 95% CI = [1.040, 1.158], p = 7.03 × 10- 4). Moreover, migraine significantly accelerated annual atrophy of the total cortical surface area (-65.588 cm2 per year, 95% CI = [-103.112, -28.064], p = 6.13 × 10- 4) and thalamic volume (-9.507 cm3 per year, 95% CI = [-15.512, -3.502], p = 1.91 × 10- 3). The migraine without aura (MO) subtype increased the risk of AD (OR = 1.091, 95% CI = [1.059, 1.123], p = 6.95 × 10- 9) and accelerated annual atrophy of the total cortical surface area (-31.401 cm2 per year, 95% CI = [-43.990, -18.811], p = 1.02 × 10- 6). The two-step MR mediation analysis revealed that thalamic atrophy partly mediated the causal effect of migraine on AD, accounting for 28.2% of the total effect. DISCUSSION: This comprehensive MR study provided genetic evidence for the causal effect of migraine on AD and identified longitudinal thalamic atrophy as a potential mediator in this association. These findings may inform brain intervention targets to prevent AD risk in migraine patients.

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PURPOSE OF REVIEW: To review replicated and highlight novel studies of sleep in children and adults with episodic and chronic migraine. RECENT FINDINGS: Attack-related sleep symptoms are most common in the prodrome and may represent early activation of the hypothalamus rather than migraine triggers. Interictally, patients with migraine report poor sleep quality and high rates of insomnia symptoms. Cognitive behavioral therapy for insomnia in adults and adolescents with chronic migraine and comorbid insomnia results in significant improvement on their headache burden. Thus far, objective studies report that migraine per se is a not associated with sleep apnea. At the present time, there is minimal evidence that migraine is under circadian influence. The current body of evidence suggests that the insomnia symptoms and poor sleep quality commonly reported by patients with migraine are not attack-related but occur interictally and are a marker of worsening disease. The development of clinical guidelines to approach sleep symptoms and expansion of CBT-I trials in those with episodic migraine would be clinically valuable.

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OBJECTIVE: To evaluate the effectiveness of a multidisciplinary program, including Cognitive behavioral therapy (CBT), in the treatment of patients with chronic migraine (CM) and concomitant chronic insomnia (CI). MATERIAL AND METHODS: The study included 96 patients with CM and CI, average age 35.7±8.6. All patients underwent clinical interviews and testing using clinical and psychological techniques. Patients were randomized into two groups: group 1 received study treatment (an multudisciplinary program including CBT for pain and insomnia, combined with standard treatment for migraine), group 2 received standard treatment for migraine (preventive and acute pharmacotherapy for migraine, recommendations about lifestyle and sleep hygiene). All patients were assessed for clinical and psychological parameters before treatment and at 3, 6, 12 and 18 months follow-up. RESULTS: At 3 month follow-up a statistically significant improvement was observed in group 1: a decrease in the frequency of headaches and the use of painkillers, parameters on the Insomnia Severity Index (ITI), the State-Trait Anxiety Inventory (STAI), the Beck Depression Inventory, and the Migraine Disability Assessment (MIDAS) (p<0.05). At 6, 12 and 18 months follow-up the achieved improvements were maintained. At 3 month follow-up, group 2 showed a statistically significant improvement in only 4 parameters: a decrease in the frequency of headaches and painkiller use, and parameters for ITI and MIDAS. These parameters increased to values that were not statistically significantly different from the parameters before treatment in group 2 at 6 month follow-up. At 3 month follow-up in group 165% of patients achieved clinical effect (CE) according to CM (headache frequency decreased by 50% or more), in group 2 - 40%, which was not statistically significantly different (p>0.001); in group 1, 76% of patients achieved CE according to CI (ITI decreased by 8 points or more), which is statistically significantly more than in group 2 with 45% of patients with CE (p<0.001). At 18 month follow-up, in group 1, 81.5% of patients achieved CE according to CM, which is statistically significantly more than in group 2 with 33% of patients with CE (p<0.001); in group 1, 85% of patients achieved CE according to CI, which is statistically significantly more than in group 2, where 38% of patients had CE (p<0.001). CONCLUSION: High effectiveness of CBT in patients with CM and combined CI was noted.

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OBJECTIVE: To investigate the clinical manifestations and complete auditory function in primary tinnitus patients with and without migraine or vestibular migraine. DESIGN: Retrospective case-control study. SETTING: A tertiary referral center. PARTICIPANTS: This study enrolled 298 patients from the Kaohsiung Veterans General Hospital. All patients were diagnosed with primary tinnitus by a neurotologist between April 2020 and August 2021. Patients were excluded if they had histories of chronic otitis media, idiopathic sudden sensorineural hearing loss, Ménière's disease, skull base neoplasm, or temporal bone trauma. INTERVENTIONS: Twenty-five-item Tinnitus Handicap Inventory (THI), speech audiometry including speech recognition threshold, most comfortable level, uncomfortable loudness levels, dynamic range, and pure-tone audiometry. MAIN OUTCOMES MEASURES: Objective hearing loss is defined as a mean threshold greater than 25 dB. Extremely elevated THI is defined as a score greater than 1 standard deviation above the mean THI. RESULTS: Among the 298 patients with tinnitus, 149 were women and 149 were men, with a mean age of 57.06 (range, 19.22-94.58) years.A total of 125 patients completed the THI questionnaire during their initial visit. The median THI score was 32 (95% confidence interval: 13.98-56.00), and the mean score was 34.99 with a standard deviation of 21.01. The sole contributing factor significantly associated with higher total THI score was the diagnosis of migraine or vestibular migraine (p < 0.001, odds ratio = 19.41).Tinnitus patients with migraine or vestibular migraine exhibited significantly lower mean pure-tone auditory thresholds (right 22.2 versus 29.5, p = 0.002; left 22.5 versus 30.4, p < 0.001), speech recognition threshold (right 20.0 versus 25.2, p = 0.016; left 20.2 versus 25.5, p = 0.019), and most comfortable levels values (right 46.1 versus 51.4, p = 0.007; left 46.9 versus 51.4, p = 0.021) compared with the tinnitus patients without migraine. CONCLUSIONS: In this population-based study, patients with primary tinnitus experienced significantly higher THI scores and exhibited concurrent symptoms, including dizziness/vertigo, cervicalgia, and migraine or vestibular migraine. Among these parameters, the diagnosis of migraine or vestibular migraine was the sole contributor to significant higher THI score.

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INTRODUCTION: Persistent postural-perceptual dizziness (PPPD) and vestibular migraine (VM) share symptoms of visual vertigo and motion sickness that can be confusing for clinicians to distinguish. We compare the severity of these symptoms and dynamic subjective visual vertical (dSVV) in these two common vestibular conditions. METHOD: Twenty-nine patients with PPPD, 37 with VM, and 29 controls were surveyed for subjective symptoms using the visual vertigo analogue scale (VVAS) and motion sickness susceptibility questionnaire during childhood (MSA) and the past 10 years (MSB). dSVV is a measure of visual dependence measures perception of verticality against a rotating background (5 deg./s). RESULTS: VVAS revealed contextual differences for dizziness between those with PPPD and VM. Ratings of visual vertigo were most severe in PPPD, less in VM, and mild in controls (VVAS PPPD 27.1, VM 11.2, control 4.6, p < 0.001). MSA was more severe in VM than in PPPD or control (12.8 vs 7.6 vs 8.5, p = 0.01). MSB was more severe in VM than controls (MSB score 12.9 VS 8.1 p = 0.009) but was not different than PPPD (MSB score 10.0, p = 0.10). dSVV alignment was similar among the three groups (p = 0.83). Both VM and PPPD groups had greater simulator sickness than controls after completing the dSVV. CONCLUSIONS: Patients with PPPD report more visual vertigo than those with VM, but a history of motion sickness as a child is more common in VM. Additionally, the environmental context that induces visual vertigo is different between PPPD and VM.

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PURPOSE: To review the vestibular, aural, and perceptual symptoms of vestibular migraine (VM) that may present alongside vertigo. RECENT FINDINGS: Increased research attention to the wide spectrum of symptoms presenting in VM patients has improved understanding of this disorder, with recent identification of five different VM phenotypes. Research into the clinical overlap between VM and other chronic vestibular syndromes such as persistent postural-perceptual dizziness and mal-de-debarquement syndrome reveals a range of vestibular symptoms and hints at pathophysiological connections between migraine and vestibular dysfunction. Studies of migraine treatment for hearing loss suggest patients presenting with aural symptoms may have an underlying diagnosis of migraine and deserve a trial of migraine preventives. Research into the neurologic basis of the perceptual disorder Alice in Wonderland syndrome has revealed brain areas that are likely involved and may help explain its prevalence in VM patients. VM is a sensory processing disorder that presents with more than just vertigo. Understanding the range of potential symptoms improves diagnosis and treatment for migraine patients whose diagnosis may be missed when only the symptoms identified in the diagnostic criteria are considered.

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