Evidence map›Paper›PMID 41675692›Full record

ArticleFrontiers in pain research (Lausanne, Switzerland)2026

Medication overuse headache: position statement of specialized headache centers in Brazil.

Abouch Valenty Krymchantowski, Carla Jevoux, Fabiola Dach, Carlos Alberto Bordini, Hilton Mariano Silva Júnior, Pedro Augusto Sampaio Rocha-Filho, Marcelo Moraes Valença, Renata Gomes Londero, Pedro André Kowacs, Élcio Juliato Piovesan and 2 more

Abstract read
In one paragraph

Article in Frontiers in pain research (Lausanne, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Abouch Valenty KrymchantowskiHeadache Center of Rio, Rio de Janeiro, Brazil.
Carla JevouxHeadache Center of Rio, Rio de Janeiro, Brazil.
Fabiola DachUniversidade de São Paulo in Ribeirão Preto, São Paulo, Brazil.
Carlos Alberto BordiniClínica de Cefaleias de Batatais in Batatais, São Paulo, Brazil.
Hilton Mariano Silva JúniorPontifícia Universidade Católica (PUC) de Campinas, São Paulo, Brazil.
Pedro Augusto Sampaio Rocha-FilhoUniversidade Federal de Pernambuco, Pernambuco, Brazil.
Marcelo Moraes ValençaUniversidade Federal de Pernambuco, Pernambuco, Brazil.
Renata Gomes LonderoHospital de Clínicas de Porto Alegre, Rio Grande do Sul, Brazil.
Pedro André KowacsUniversidade Federal do Paraná in Curitiba, Paraná, Brazil.
Élcio Juliato PiovesanUniversidade Federal do Paraná in Curitiba, Paraná, Brazil.
Luiz Paulo QueirozUniversidade Federal de Santa Catarina, Santa Catarina, Brazil.
Raimundo Pereira Silva-NétoUniversidade Federal do Delta do Parnaíba, Piauí, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: To develop a position statement based on expert opinions for the management of medication overuse headache (MOH) in Brazil. Method: This was an observational, prospective, descriptive, and opinion-based study. The experts were in several Brazilian states. Twelve experts who fulfilled the inclusion criteria completed a questionnaire that explored their experiences and approaches to managing MOH in both the private and public sectors. Results: According to most experts, more than 50% of migraine patients have MOH and psychiatric comorbidities. Experts abruptly stop pain medications, prescribing a bridge treatment for more than 50% of patients. Acute treatment is administered for up to two days per week. Prophylaxis was initiated immediately, and topiramate and monoclonal antibodies were the first choices, respectively, for 36.3% and 54% of professionals. The first follow-up appointment should occur within 4 weeks. Conclusions: Further guidelines based on evidence as well as expert opinions should be developed for the Brazilian reality, and future prospective studies can be conducted to compare the effects of different treatment regimens for MOH.

Indexed as

chronic migraine (CM)expert consensusmedication-overuse headacheprimary headachetreatment

Identifiers

PMID41675692
PMCPMC12886480

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.