Migraine patients' journey until a tertiary headache center: an observational study

Impact of duration of chronic migraine on long-term effectiveness of monoclonal antibodies targeting the calcitonin gene-related peptide pathway-A real-world study

OBJECTIVE

We assessed whether the effectiveness of monoclonal antibodies (mAbs) targeting the calcitonin gene-related peptide (CGRP) pathway changes according to the duration of chronic migraine (CM) over 12 months.

BACKGROUND

In most patients, CM is a progressive disease starting with episodic migraine. Longer CM duration might be associated with more difficult treatment, probably because the mechanisms underlying chronicization are strengthened. Therefore, early treatment of CM could lead to better outcomes compared with later treatment.

METHODS

This cohort study included individuals with CM treated with anti-CGRP mAbs in two tertiary headache centers from April 2019 to May 2023. The primary outcome included a change in monthly migraine days (MMDs) from baseline to the third trimester of treatment, 10-12 months. Secondary outcomes established whether response to anti-CGRP mAbs has a more rapid onset in individuals with shorter CM duration compared with longer duration; they included change in MMDs, monthly headache days (MHDs), and days and number of intakes of acute medication during each trimester compared to baseline. Additional outcomes included persisting MMDs, MHDs, and days and number of intakes of acute medication during each trimester of treatment. Patients were compared across tertiles of the overall CM duration.

RESULTS

The study included 335 individuals with CM, with a median (interquartile range [IQR]) age of 48 (39-57) years; 270 (80.6%) were women. Patients in the highest tertile of CM duration (aged 18-60 years) were older than patients in the lower duration tertiles (0-7 years and 8-18 years, respectively), with a median (IQR) age of 56 (48-64) years compared with 42 (31-50) years, and 48 (39-56)years, respectively (p = 0.025); however, this difference was likely due to a correlation between age and disease duration. The change in MMDs from baseline to the last trimester of treatment (10-12 months) was comparable across tertiles of CM duration (median [IQR] -12 [-18 to -5] days, -12 [-17 to -6] days, and -12 [-18 to -4] days; p = 0.946). No difference emerged in secondary outcomes, suggesting a similar time to onset of anti-CGRP mAbs effect across all tertiles of CM duration.

CONCLUSIONS

Our data showed that anti-CGRP mAbs are effective and have a rapid onset of action in CM regardless of disease duration.

Resistant and refractory migraine: clinical presentation, pathophysiology, and management

Migraine is a leading cause of disability worldwide. A minority of individuals with migraine develop resistant or refractory conditions characterised by ≥ 8 monthly days of debilitating headaches and inadequate response, intolerance, or contraindication to ≥3 or all preventive drug classes, respectively. Resistant and refractory migraine are emerging clinical definitions stemming from better knowledge of the pathophysiology of migraine and from the advent of migraine-specific preventive treatments. Resistant migraine mostly results from drug failures, while refractory migraine has complex and still unknown mechanisms that impair the efficacy of preventive treatments. Individuals with resistant migraine can be treated with migraine-specific preventive drugs. The management of refractory migraine is challenging and often unsuccessful, being based on combinations of different drugs and non-pharmacological treatment. Future research should aim to identify individuals at risk of developing treatment failures, prevent the condition, investigate the mechanisms of refractoriness to treatments, and find effective treatment strategies.

Effectiveness of Acupuncture for Prophylactic Treatment of Migraine: A Systematic Review and Bayesian Network Meta-Analysis

It is aimed to evaluate the effectiveness and provide evidence-based medical support for acupuncture as a prophylactic treatment for migraines. Randomized controlled trials (RCTs) from inception to April 2022 are included in 14 databases. Pairwise meta-analysis is conducted using STATA software V14.0, while Windows Bayesian Inference Using Gibbs Sampling (WinBUGS V.1.4.3) is applied to generate Bayesian Network Meta-analysis (NMA) using Markov chain Monte Carlo algorithm. Forty RCTs are included, with 4405 participants. The effectiveness of six acupuncture techniques, three types of prophylactic drugs, and psychotherapy are compared and ranked. Acupuncture outperformed prophylactic drugs in terms of diminishing visual analog scale (VAS) score, migraine attack frequency, and days during the treatment and at the 12-week follow-up. At the 12-week follow-up, the effectiveness of various interventions is ranked as follows: manual acupuncture (MA) > electroacupuncture (EA) > calcium antagonists (CA) in reducing VAS score; MA > EA > CA in reducing migraine attack frequency; MA > EA > β-receptor blocker and CA in reducing headache attack days. Acupuncture is a promising treatment for migraine prevention. The best option of acupuncture for improving various migraine outcomes has changed over time. However, the quality of included trials and NMA inconsistency limited the credibility of the conclusion.

Perception of typical migraine images on the internet: Comparison between a metropolis and a smaller rural city in Germany

The medial portrayal of migraine is often stereotypical and inaccurate but reflects how society perceives migraine. The discrepancy between others' views and the reality of affected individuals may negatively affect access to treatment and the disease course of patients with migraine. This study aimed to investigate whether images presented in the media as typical migraine attacks are perceived as realistic and representative by migraine patients in Rostock, a smaller town in rural Germany, and compare the results to those from Berlin, a large metropolis. We performed an online survey in Rostock. Migraine patients were shown ten images of migraine attacks, which were among the most downloaded stock pictures on the internet under the search term "migraine". They rated on a scale of 0-100 to what extent the pictures were realistic for migraine attacks (realism score), representative of their own migraine (representation score), or the society's view of migraine (society score). In addition, we compared our results with a recently published study from the metropolitan region of Berlin. A total of 174 migraine patients completed our survey. Mean (SD) realism, representation, and society scores were 59.9 (17.5), 56.7 (18.3), and 58.4 (17.1) respectively. Images of older patients were perceived as significantly more realistic and representative than those of younger patients (P < .001). Patients in Rostock (rural region) rated the images as significantly more realistic and representative than survey participants in Berlin (metropolis). Migraine patients in a rural region found typical migraine images only moderately realistic and representative but to a higher degree than their counterparts from a metropolis.

Brazilian headache registry: methods and preliminary data of the pilot study

BACKGROUND

Evaluation and treatment of primary and secondary headaches is a global public health challenge. Recognizing the epidemiological impact of headaches, a group of researchers linked to the Brazilian Headache Society proposed the Brazilian Headache Registry and drew up its initial protocol.

OBJECTIVE

Here we describe the methods and preliminary data obtained from the pilot study.

METHODS

This was a multicenter longitudinal observational study conducted between September 2020 and August 2021. Prospective data were collected in three specialist centers for headache care in states in southern and southeastern Brazil. Patients aged 18 years or older who sought care for headache in tertiary centers and who agreed to participate in the study, were considered eligible.

RESULTS

Sixty-six patients were included in the pilot study: 43 (65%) from Rio Grande do Sul state and 23 (35%) from Minas Gerais state. Overall, 90% were female, and the subjects' mean age was 38.2 ± 11.2 years. Primary headaches accounted for 85.3% of the diagnoses made. Among secondary headaches, medication overuse headache was the most frequent type (7.1%).

CONCLUSIONS

The pilot study showed the feasibility of the research protocol developed for tertiary centers. The Brazilian Headache Registry will form a source of longitudinal data with the aim of contributing to better characterization of the various phenotypes of patients with primary and secondary headaches, and to detailing the use of health resources and identifying predictors of better clinical outcomes.

Burden of migraine in Brazil: A cross-sectional real-world study

OBJECTIVE

To assess the burden and consequences of migraine in Brazil in terms of health-related quality of life (HRQoL), work productivity and daily activities, and healthcare resource utilization (HRU).

BACKGROUND

Despite existing data on how migraine affects populations worldwide, there are limited data on the burden of migraine in Latin America.

METHODS

This cross-sectional study used patient-reported data from the 2018 Brazil National Health and Wellness Survey. HRQoL scores (EuroQol 5-dimension 5-level [EQ-5D-5L]; 36-item Short Form Health Survey, version 2 [SF-36v2]; and Short Form 6-dimension [SF-6D]), impairments to work productivity and daily activities (Work Productivity and Activity Impairment questionnaire), and all-cause HRU were compared between migraine respondents and matched non-migraine controls.

RESULTS

Of the 12,000 total respondents in the survey database, 1643 self-reported a physician diagnosis of migraine and were propensity score matched 1:1 with controls without migraine. HRQoL was lower in patients with migraine versus non-migraine controls, with significantly lower SF-36v2 physical (mean [± SD] 50.3 [7.5] vs. 52.0 [7.6]) and mental component (mean [± SD] 42.9 [10.2] vs. 46.0 [9.9]) summary scores and SF-6D (mean [± SD] 0.7 [0.1] vs. 0.7 [0.1]) and EQ-5D-5L (mean [± SD] 0.7 [0.2] vs. 0.8 [0.2]) utility scores (all p < 0.001). Patients with migraine reported higher levels of work productivity loss (mean [± SD], 40.6% [31.4%] vs. 28.6% [30.9%], including absenteeism 12.8% [19.1%] vs. 8.4% [17.1%] and presenteeism 35.0% [28.7%] vs. 24.8% [28.0%]; all p < 0.001); activity impairment (mean [± SD] 36.0% [28.8%] vs. 25.5% [28.1%]; p < 0.001); and significantly higher HRU in the past 6 months (healthcare provider and emergency department visits [mean [± SD] 7.2 [9.5] vs. 4.5 [6.3] and 1.7 [3.8] vs. 0.9 [2.2]; both p < 0.001] and hospitalizations [mean [± SD] 0.4 [2.7] vs. 0.2 [1.1]; p = 0.002]) than controls.

CONCLUSION

Migraine is associated with poorer HRQoL, higher all-cause HRU, and greater activity impairment and work productivity loss versus non-migraine controls in Brazil.

Comparative efficacy of acupuncture-related therapy for migraine: A systematic review and network meta-analysis

Background

Migraine is a worldwide disabling chronic brain disorder, some studies suggest acupuncture-related therapy plays an important role in raising efficiency rates and reducing migraine attacks. However, clinical trials comparing the efficacy of different interventions for migraine are limited and controversial. This network meta-analysis (NMA) was performed to review all randomized controlled trials (RCTs) comparing the effects of acupuncture-related therapy for migraine.

Methods

Randomized controlled trials (RCTs) of acupuncture-related therapy for migraine were searched in the following databases from the date of database inception to March 31, 2022, including PubMed, Embase, Cochrane Library, Web of Science, China National Knowledge Infrastructure (CNKI), VIP Database, Wanfang Database, and Chinese Biomedical Database (CBM). The primary endpoint was visual analog scale (VAS) scores. The secondary endpoints were the number of migraine days, duration of migraine, and frequency of migraine attacks. We used Cochrane risk of bias to assess the quality of evidence for outcomes.

Results

Thirty-nine studies involving 4379 patients with 13 different acupuncture-related methods were evaluated. According to surface under the cumulative ranking curve value, acupoint injection was ranked the highest (98.0%) in VAS scores, followed by acupoint implantation (79.0%); electroacupuncture was the optimal intervention method (82.4%) in the number of migraine days, followed by embedding needle therapy (73.1%); embedding needle therapy ranked first (99.9%) in the duration of migraine, followed by acupoint injection (77.4%); acupoint injection was the best intervention (99.3%) in the frequency of migraine attacks, followed by conventional acupuncture plus massage (73.8%).

Conclusion

These results provide preliminary evidence that acupuncture-related therapy could be recommended as one of the effective treatments for migraine. Conventional acupuncture has significant effects on improving VAS scores, the number of migraine days, duration of migraine, and frequency of migraine attacks. However, more high-quality studies should be carried out to verify this finding.

Systematic review registration

https://inplasy.com/, identifier: INPLASY202110035.

Translation and cross-cultural adaptation of the Headache Screening Questionnaire into Brazilian Portuguese

BACKGROUND

The Headache Screening Questionnaire (HSQ) was created and validated to enable health professionals to screen for migraine and tension-type headaches.

OBJECTIVES

The objective of this study was to translate and cross-culturally adapt the HSQ, creating the Brazilian version of the HSQ (HSQ-BR).

DESIGN

This was a cross-sectional study.

METHOD

The Brazilian version of the HSQ was developed following the processes of translation, synthesis, back-translation, expert committee review, and pre-testing. The translation phase involved two independent translators whose mother language was Brazilian Portuguese and who also were fluent in Dutch. The back-translation phase involved two independent translators whose mother language was Dutch and who also were fluent in Portuguese. The expert committee based their decisions on semantic, idiomatic, experiential, and conceptual equivalences. To verify the comprehension of the questionnaire, 60 subjects (73.3% women) with headaches with a mean age of 32.8 ± 12.0 years, participated in the pre-test phase.

RESULTS

During the translation process, some terms and expressions were changed to obtain cultural equivalence to the original HSQ. The process of translation and cross-cultural adaptation of the HSQ to the Brazilian culture and Portuguese language, including its scoring algorithms for migraine and tension-type headache, was successfully concluded, as the comprehension of each item of the questionnaire was over 90% on the pre-test.

CONCLUSION

The HSQ-BR has been created.

Diagnostic accuracy of an artificial intelligence online engine in migraine: A multi‐center study

Objective

This study assesses the concordance in migraine diagnosis between an online, self‐administered, Computer‐based, Diagnostic Engine (CDE) and semi‐structured interview (SSI) by a headache specialist, both using International Classification of Headache Disorders, 3rd edition (ICHD‐3) criteria.

Background

Delay in accurate diagnosis is a major barrier to headache care. Accurate computer‐based algorithms may help reduce the need for SSI‐based encounters to arrive at correct ICHD‐3 diagnosis.

Methods

Between March 2018 and August 2019, adult participants were recruited from three academic headache centers and the community via advertising to our cross‐sectional study. Participants completed two evaluations: phone interview conducted by headache specialists using the SSI and a web‐based expert questionnaire and analytics, CDE. Participants were randomly assigned to either the SSI followed by the web‐based questionnaire or the web‐based questionnaire followed by the SSI. Participants completed protocols a few minutes apart. The concordance in migraine/probable migraine (M/PM) diagnosis between SSI and CDE was measured using Cohen’s kappa statistics. The diagnostic accuracy of CDE was assessed using the SSI as reference standard.

Results

Of the 276 participants consented, 212 completed both SSI and CDE (study completion rate = 77%; median age = 32 years [interquartile range: 28–40], female:male ratio = 3:1). Concordance in M/PM diagnosis between SSI and CDE was: κ = 0.83 (95% confidence interval [CI]: 0.75–0.91). CDE diagnostic accuracy: sensitivity = 90.1% (118/131), 95% CI: 83.6%–94.6%; specificity = 95.8% (68/71), 95% CI: 88.1%–99.1%. Positive and negative predictive values = 97.0% (95% CI: 91.3%–99.0%) and 86.6% (95% CI: 79.3%–91.5%), respectively, using identified migraine prevalence of 60%. Assuming a general migraine population prevalence of 10%, positive and negative predictive values were 70.3% (95% CI: 43.9%–87.8%) and 98.9% (95% CI: 98.1%–99.3%), respectively.

Conclusion

The SSI and CDE have excellent concordance in diagnosing M/PM. Positive CDE helps rule in M/PM, through high specificity and positive likelihood ratio. A negative CDE helps rule out M/PM through high sensitivity and low negative likelihood ratio. CDE that mimics SSI logic is a valid tool for migraine diagnosis.

Treatment experiences and clinical characteristics in migraine and tension-type headache patients before the first visit to a tertiary headache center

OBJECTIVES

To investigate previous treatment and clinical characteristics in migraine and tension-type headache patients at their first visit to a tertiary headache center.

METHODS

This was a cross-sectional study using data obtained from electronic questionnaires and medical charts. Migraine and tension-type headache patients were investigated at their first visit to the Danish Headache Center.

RESULTS

Out of 382 patients the main diagnoses of primary headaches were: 36% with episodic migraine, 43% with chronic migraine, 3% with episodic tension-type headache and 17% with chronic tension-type headache. The majority had attempted non-pharmacological treatment options such as physiotherapy (episodic migraine: 53%, chronic migraine: 68%, episodic tension-type headache: 50%, chronic tension-type headache: 65%) and acupuncture: (episodic migraine: 45%, chronic migraine: 62%, episodic tension-type headache: 17%, chronic tension-type headache: 51%). The majority of migraine patients had tried no more than one triptan (episodic migraine: 71%, chronic migraine: 66%). In total, 35% of episodic migraine and 19% of chronic migraine patients as well as 50% of episodic tension-type headache and 41% of chronic tension-type headache patients had never tried preventive medication. The headache under-response to treatment (HURT) questionnaire score was higher in chronic migraine (score 15) and chronic tension-type headache (score 16) patients than the episodic forms (P < 0.004).

CONCLUSIONS

Headache patients had attempted several non-pharmacological treatments prior to their first visit at a tertiary headache center in Denmark. The limited use of acute and preventive treatment before the first visit demonstrates a need for better treatment at the primary and secondary care level.

Bridging the gaps of headache care for underserved populations: Current status of the headache field in Latin America

OBJECTIVE

To evaluate the current status of specialized headache care and research in Latin America.

BACKGROUND

Latin America corresponds to about 9% of the global population. There is considerably limited access to headache services, and very few resources are allocated to headache research in this region.

METHODS

The study consisted of two parts. First, in order to evaluate headache-related scientific output from Latin American countries we performed a 10-year bibliometric analysis and contrasted the results with a human developmental index-adjusted projection model. Secondly, we conducted a survey addressing different aspects of headache research, education, clinical practice, and awareness among members of the Latin American Headache Society.

RESULTS

During the last 10 years 70% of Latin American countries published less than three articles regarding headache disorders. This contrasts with an average expected publication rate of 889 scientific papers. Indeed, none of the countries fulfilled their human developmental index - adjusted projected scientific output, with Brazil being the closest reaching 84.1% of what would be considered optimal according to the model. From the 86 headache-dedicated professionals that responded to the survey, most (64%) reported not having a headache specialization programme of any kind available in their countries. The biggest impediments towards conducting research observed by participants were the lack of time (39%), resources (22%), and training (21%).

CONCLUSIONS

Latin American countries have a considerable gap in headache-related scientific production, and also in formal education, research, and implementation of multidisciplinary services. Access to specialized headache care is particularly limited for patients with lower economic income.

Characterizing and quantifying low-value diagnostic imaging internationally: a scoping review

BACKGROUND

Inappropriate and wasteful use of health care resources is a common problem, constituting 10-34% of health services spending in the western world. Even though diagnostic imaging is vital for identifying correct diagnoses and administrating the right treatment, low-value imaging-in which the diagnostic test confers little to no clinical benefit-is common and contributes to inappropriate and wasteful use of health care resources. There is a lack of knowledge on the types and extent of low-value imaging. Accordingly, the objective of this study was to identify, characterize, and quantify the extent of low-value diagnostic imaging examinations for adults and children.

METHODS

A scoping review of the published literature was performed. Medline-Ovid, Embase-Ovid, Scopus, and Cochrane Library were searched for studies published from 2010 to September 2020. The search strategy was built from medical subject headings (Mesh) for Diagnostic imaging/Radiology OR Health service misuse/Medical overuse OR Procedures and Techniques Utilization/Facilities and Services Utilization. Articles in English, German, Dutch, Swedish, Danish, or Norwegian were included.

RESULTS

A total of 39,986 records were identified and, of these, 370 studies were included in the final synthesis. Eighty-four low-value imaging examinations were identified. Imaging of atraumatic pain, routine imaging in minor head injury, trauma, thrombosis, urolithiasis, after thoracic interventions, fracture follow-up and cancer staging/follow-up were the most frequently identified low-value imaging examinations. The proportion of low-value imaging varied between 2 and 100% inappropriate or unnecessary examinations.

CONCLUSIONS

A comprehensive list of identified low-value radiological examinations for both adults and children are presented. Future research should focus on reasons for low-value imaging utilization and interventions to reduce the use of low-value imaging internationally.

SYSTEMATIC REVIEW REGISTRATION

PROSPERO: CRD42020208072.

Computerized migraine diagnostic tools: a systematic review

BACKGROUND

Computerized migraine diagnostic tools have been developed and validated since 1960. We conducted a systematic review to summarize and critically appraise the quality of all published studies involving computerized migraine diagnostic tools.

METHODS

We performed a systematic literature search using PubMed, Web of Science, Scopus, snowballing, and citation searching. Cutoff date for search was 1 June 2021. Published articles in English that evaluated a computerized/automated migraine diagnostic tool were included. The following summarized each study: publication year, digital tool name, development basis, sample size, sensitivity, specificity, reference diagnosis, strength, and limitations. The Quality Assessment of Diagnostic Accuracy Studies (QUADAS) tool was applied to evaluate the quality of included studies in terms of risk of bias and concern of applicability.

RESULTS

A total of 41 studies (median sample size: 288 participants, median age = 43 years; 77% women) were included. Most (60%) tools were developed based on International Classification of Headache Disorders criteria, half were self-administered, and 82% were evaluated using face-to-face interviews as reference diagnosis. Some of the automated algorithms and machine learning programs involved case-based reasoning, deep learning, classifier ensemble, ant-colony, artificial immune, random forest, white and black box combinations, and hybrid fuzzy expert systems. The median diagnostic accuracy was concordance = 89% [interquartile range (IQR) = 76-93%; range = 45-100%], sensitivity = 87% (IQR = 80-95%; range = 14-100%), and specificity = 90% (IQR = 77-96%; range = 65-100%). Lack of random patient sampling was observed in 95% of studies. Case-control designs were avoided in all studies. Most (76%) reference tests exhibited low risk of bias and low concern of applicability. Patient flow and timing showed low risk of bias in 83%.

CONCLUSION

Different computerized and automated migraine diagnostic tools are available with varying accuracies. Random patient sampling, head-to-head comparison among tools, and generalizability to other headache diagnoses may improve their utility.

Clinical features, disease progression, and use of healthcare resources in a large sample of 866 patients from 24 headache centers: A real-life perspective from the Italian chROnic migraiNe (IRON) project

OBJECTIVE

To develop a dedicated Italian chronic migraine (CM) database (IRON project) to overcome disease misconceptions, improve clinical administration, reduce patients' burden, and rationalize economic resource allotment.

BACKGROUND

Proper CM management requires a comprehensive appraisal of its full clinical, social, and economic complexity.

METHODS

In this cross-sectional study, CM patients were screened in 24 certified headache centers with face-to-face interviews. Information on sociodemographic factors, medical history, characteristics of CM, and of prior episodic migraine (EM), and healthcare resource use was gathered using a semistructured web-based questionnaire.

RESULTS

A total of 866 CM patients were enrolled. CM started ~20 years after EM onset (age at EM onset 17.4 ± 9.1 vs. age at CM onset 35.3 ± 12.5 [mean ± SD]). CM prophylaxis, used by 430/866 (49.6%) of the patients, was often ineffective, not tolerated, and prematurely discontinued. Medications and diagnostic workup, frequently inappropriate, were mostly subsidized by the Italian national health service. CM patients with ≥25 headache days/month revealed substantial clinical differences and heavier disability and economic burden compared with those with <25 headache days/month.

CONCLUSIONS

CM is a heterogeneous headache disorder deserving more in-depth clinical characterization, sharper diagnostic criteria, and tailored treatments. CM registries are expected to improve clinical management, resulting in increased disease awareness, better healthcare resource allocation, and reduced economic burden.

The Italian Chapter of the MOST Project: Specific Changes in the Organization of Headache Centres Can Help Improve the Patient Journey

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Acupuncture and Its Role in the Treatment of Migraine Headaches

Acupuncture is a form of traditional Chinese medicine that is performed by placing needles or pressure in specific locations on a patient's skin to achieve a therapeutic effect. Although used to treat a variety of disorders, one of the most common applications of acupuncture is to treat chronic pain, especially headache and migraine pain. Migraines are difficult to treat, and pharmacotherapies are often the first line of treatment, although these options have many unwanted side effects, such as exacerbation of headache pain in those with chronic migraine. Many complimentary and integrative therapies are available to treat migraine (including nutraceuticals, yoga, tai chi, and biofeedback), among which acupuncture as a treatment is gaining increasing attention. In this review, we provide an overview of the current understanding of both acupuncture and migraine and of current research investigating the effectiveness of acupuncture in treating migraine and chronic migraine.

Ultrasonographic measurement of the optic nerve sheath in the differential diagnosis and follow-up of migraine with and without aura: A pilot study

OBJECTIVE

Headache continues to be a common cause of emergency admissions. At first glance, primary headaches may not be distinguished from secondary headaches. This study aimed to evaluate the use of ultrasonic measurement of optic nerve sheath diameter (ONSD) in the clinical diagnosis of migraine patients during attack and during periods without attacks.

PATIENTS AND METHODS

This prospective study was conducted at the emergency department and neurology outpatient clinic of a tertiary hospital between October 2019 and January 2020. Patients diagnosed with episodic migraine and between ages 18-60 were included in the study. Migraine diagnosis and classification were based on criteria from the 2018 International Classification of Headache Disorders. ONSD measurement was performed with ultrasonography. ONSD measurements of the same migraine patients during attack and attack-free periods were compared with measurements of healthy volunteers.

RESULTS

A total of 82 participants consisting of 42 migraine patients and 40 control subjects were evaluated. In the control group, mean ONSD of the right eye was 4.88 ± 0.31 mm and mean ONSD of the left eye was 4.86 ± 0.31 mm. Mean ONSD measurement of the left eye was 4.80 ± 0.36 mm and mean ONSD of the right eye was 4.82 ± 0.37 during the attack period of the migraine patients. There was no significant difference between the migraine patients and the control group according to right and left eye ONSD measurements (attack-free period: p = 0.200, p = 0.448; attack period: p = 0.338, p = 0.660, respectively). There was no significant difference between ONSD measurements during the attack period and attack-free period in migraine patients (right eye p = 0.32; left eye p = 0.532).

CONCLUSION

The results of our study indicate that ONSD measurements may provide clinical insight into differential diagnosis preceding neuroimaging in migraine patients. On the other hand, since our study is the first on this topic, it should be noted that further studies are needed to come to a conclusion.

Care Among Migraine Patients in a Commercially Insured Population

INTRODUCTION

Migraine management is characterized by the poor use of preventive therapy and the overuse of acute medications. An analysis of current treatment patterns in migraineurs is needed to improve care in this patient population. The aim of this study was to describe treatment patterns and healthcare utilization of newly diagnosed migraine patients.

METHODS

This was a retrospective observation study of newly diagnosed migraine patients (no indication of migraine in the past year) identified in the IBM MarketScan Commercial Claims and Encounters database from 1 January 2010 to 30 June 2014. The final study population comprised persons aged 18-64 years at index (new diagnosis of migraine) with 12 months of continuous enrollment in an insurance plan with medical and pharmacy benefits pre-index and post-index. Treatment patterns and healthcare resource utilization were assessed during the post-index period (at least 12-months).

RESULTS

Of the 1,588,666 migraine patients identified in the database as potentially eligible to participate in the study, 284,719 (17.9%) met the final inclusion criteria. Patients generally used acute and preventive therapies to manage migraine attacks, with most patients using preventive therapy (59.1%). However, 67.9% of those using preventive therapy discontinued the current therapy, with a median time to discontinuation of 5 months. Most of the patients who discontinued preventative therapy also used an acute treatment to manage migraine attacks after discontinuation (77.6%), generally in the year following discontinuation (68.4%). Patients on acute therapies were found to use triptans excessively (1.6%) and other non-migraine-specific acute medications for treatment (7.1%). Acute patients were also at risk of opioid dependence (12.0%) and commonly received opioids or barbiturates as first-line therapy (34.1%).

CONCLUSION

Newly diagnosed migraine patients are not being properly treated, as indicated by their excessive use of acute therapies and short time on preventive treatment before discontinuation of that treatment. Further study of the reasons why patients discontinue preventive therapy (adverse events, no response, etc.) and continue to excessively use acute treatments once their treatment regimen has been established is needed.

Characteristics of Patients Referred To A Specialized Headache Clinic

Headache is a common problem with great effect both on the individual and on the society. Recent studies raised the possibility of increasing rate of specialty referrals, inappropiate treatment and advanced imaging for simple headache. The aim of our study was to analyze the characteritics of patients (including duration of symptoms, headache type, brain imaging, treatment) referred to our specialized headache clinic between 01/01/2014 and 01/01/2015 by their general practitioners and primary care neurologists due to chronic/treatment-resistant headache syndromes. 202 patients (mean age 53.6 ± 17.6 years) were evaluated in our clinic (102 females, mean age 50.14 ± 16.11 years and 100 males, mean age 57 ± 18.1 years). Migraine (84/202) and tension-type (76/202) were the most common syndromes. 202 plain brain CT, 60 contrast-enhanced CT and 128 MRI were carried out by their general practitioners or other healthcare professioners including neurologists before referral to our headache centre. Despite of extensive brain imaging appropiate treatment was started less than 1/3 of all patients and significant proportion received benzodiazepines or opioid therapy. Furthermore, more than 10% of referred patients presented with secondary headache including one meningitis. The management of headache is still a challenge for primary care physicians leading to medical overuse. Vast majority of our patients should not be referred to our specialized headache clinic as they had uncomplicated headache or other underlying conditions than pain.