ArticleEndocrine2023
Clinical presentation of MEN 2A in index vs. non-index patients.
Article in Endocrine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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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.
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.
Who cites it
3 citing papers in PubMed.
- Article
- An Analysis of Primary Hyperparathyroidism in Individuals Diagnosed with Multiple Endocrine Neoplasia Type 2.Diseases (Basel, Switzerland) · 2025Review
- [30 years of prophylactic thyroidectomy for hereditary medullary thyroid cancer : A milestone in translational medicine].Chirurgie (Heidelberg, Germany) · 2024Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeDifferences in syndromic manifestations of multiple endocrine neoplasia 2 A (MEN2A) between index and non-index patients are ill-defined.
methodsCross-sectional analysis of 602 REarranged during Transfection (RET) carriers (156 index and 446 non-index patients) who underwent thyroidectomy, adrenalectomy, and/or parathyroidectomy between 1985 and 2022, stratified by mutational risk.
resultsIndex patients were 5.8-13.9 years older at thyroidectomy than non-index patients, at which point they had developed 10.6-14.4 mm larger medullary thyroid cancers. Correlations between index status and primary tumor size (ρ = 0.489-0.544) were stronger than correlations between index status and age at thyroidectomy (ρ = 0.359-0.438). For pheochromocytoma and primary hyperparathyroidism, no significant differences were noted. When stratified by time of surgery before vs. in the new millennium, age at thyroidectomy fell significantly only for non-index patients in the new millennium: from 28.6 to 21.2 years (moderate-high risk mutations; P = 0.049) and from 23.1 to 12.3 years (high-risk mutations; P < 0.001). All other inter-millennium comparisons did not reach statistical significance.
conclusionThese findings imply that differences between index and non-index patients impact the first syndromic manifestation without extending to subsequent syndromic manifestations. Because they exhibited similar age and tumor characteristics for the secondary and tertiary manifestations of MEN2A, screening for these syndromic components remains an integral element of MEN2A management in index and non-index patients alike. Wider use of population genomic screening may work to diminish the observed disparities between index and non-index patients going forward.
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Registered trials
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