Evidence map›Paper›PMID 39108011›Full record

ReviewCurrent drug safety2025

Methimazole-Induced Pancytopenia in a Patient with Graves' Disease: A Case Report and Literature Review.

Marcio José Concepcion-Zavaleta, Juan Eduardo Quiroz-Aldave, Katia Eugenia Rivera Fabián, Sofia Pilar Ildefonso-Najarro, Karol Magdalena Moscol Chavez, Luis Alberto Concepcion-Urteaga, Jose Paz-Ibarra

Abstract readCase ReportsReview
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In one paragraph

Review in Current drug safety, 2025. 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

7 authors.

Marcio José Concepcion-ZavaletaUniversidad Científica del Sur. Lima, Perú.ORCID 0000-0001-9719-1875
Juan Eduardo Quiroz-AldaveDivision of Non-communicable Diseases, Endocrinology Research Line, Hospital de Apoyo Chepén. Chepén, Perú.ORCID 0000-0001-8286-095X
Katia Eugenia Rivera FabiánDivision of Endocrinology, Hospital Nacional Guillermo Almenara Irigoyen. Lima, Perú.ORCID 0009-0002-5641-6251
Sofia Pilar Ildefonso-NajarroDivision of Endocrinology, Hospital Nacional Guillermo Almenara Irigoyen. Lima, Perú.ORCID 0000-0003-1952-2338
Karol Magdalena Moscol ChavezDivision of Hematology, Hospital Nacional Edgardo Rebagliati Martins. Lima, Perú.ORCID 0009-0009-1599-462X
Luis Alberto Concepcion-UrteagaDivision of Pneumology, Hospital Regional Docente de Trujillo. Trujillo, Perú.ORCID 0000-0003-0462-3101
Jose Paz-IbarraDepartment of Medicine, School of Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru.ORCID 0000-0002-2851-3727

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionMethimazole is an antithyroid drug known to cause hematological toxicity, including agranulocytosis and, very rarely, pancytopenia. We herein present a case of a patient with Graves' Disease (GD) who developed methimazole-induced pancytopenia. CASE REPORT: A 53-year-old Peruvian woman with GD, initially treated with methimazole 20 mg BID, experienced odynophagia, fever, and malaise after 37 days of treatment. The initial diagnosis was agranulocytosis, leading to the discontinuation of methimazole and initiation of antibiotics. Due to persistent neutropenia, a Granulocyte Colony-stimulating Factor (G-CSF) was administered. Eight days later, she developed pancytopenia and was managed with hematopoietic agents and platelet transfusions. The patient recovered with normalization of the blood count, eliminating the need for Bone Marrow (BM) examination. Radioiodine therapy was chosen as the definitive treatment, resulting in hypothyroidism. Currently, the patient is thyroidal and hematologically stable.

conclusionMethimazole-induced pancytopenia is a rare and serious complication; however, with appropriate treatment, complete recovery can be achieved.

Indexed as

Antithyroid AgentsGraves DiseaseMethimazolePancytopeniaFemaleHumansMiddle AgedAntithyroid AgentsMethimazoleacquired agranulocytosisAntithyroid agentsaplastic anemiagraves disease.methimazolepancytopenia

Identifiers

PMID39108011

What Socratic holds

Textmetadata
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Registered trials

None linked

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 Socratic graph.