Evidence map›Paper›PMID 42584723›Full record

ArticleNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2026

The role of "red flags" in the diagnostic work-up of hereditary transthyretin amyloidosis: a study using a machine-learning approach.

Antonia Pignolo, Giada Sajeva, Christian Messina, Maria Magro, Nicasio Rini, Paolo Alonge, Gabriele Gerbino, Manfredi Parasporo, Vincenzo Di Stefano, Filippo Brighina

Abstract read
In one paragraph

Article in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Antonia PignoloDepartment of Biomedicine, Neuroscience and Advanced Diagnostics (BiND), University of Palermo, Via del Vespro 143, Palermo, 90127, Italy.
Giada SajevaDemetrix s.r.l., Palermo, 90146, Italy.
Christian MessinaDepartment of Biomedicine, Neuroscience and Advanced Diagnostics (BiND), University of Palermo, Via del Vespro 143, Palermo, 90127, Italy.
Maria MagroDemetrix s.r.l., Palermo, 90146, Italy.
Nicasio RiniDepartment of Biomedicine, Neuroscience and Advanced Diagnostics (BiND), University of Palermo, Via del Vespro 143, Palermo, 90127, Italy.
Paolo AlongeDepartment of Biomedicine, Neuroscience and Advanced Diagnostics (BiND), University of Palermo, Via del Vespro 143, Palermo, 90127, Italy.
Gabriele GerbinoDemetrix s.r.l., Palermo, 90146, Italy.
Manfredi ParasporoDemetrix s.r.l., Palermo, 90146, Italy.
Vincenzo Di StefanoDepartment of Biomedicine, Neuroscience and Advanced Diagnostics (BiND), University of Palermo, Via del Vespro 143, Palermo, 90127, Italy. vincenzo.distefano07@unipa.it.ORCID http://orcid.org/0000-0001-9805-1655
Filippo BrighinaDepartment of Biomedicine, Neuroscience and Advanced Diagnostics (BiND), University of Palermo, Via del Vespro 143, Palermo, 90127, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionHereditary transthyretin amyloidosis (ATTRv) is a rare progressive, potentially life-threatening multisystem disorder caused by mutations in the transthyretin (TTR) gene, with variable penetrance and heterogeneous phenotypes, often leading to diagnostic delays, particularly in non-endemic regions. Identifying clinical "red flags" is crucial to shorten diagnostic latency. Machine learning (ML), a branch of artificial intelligence (AI), together with explainable artificial intelligence (XAI), offers novel opportunities to refine diagnostic algorithms and prioritize predictive features in ATTRv. MATERIALS AND

methodsA total of 452 patients who underwent TTR genetic testing between 2019 and 2024 in Sicily were retrospectively analyzed. Genetic testing was performed via polymerase chain reaction (PCR) and sequencing of TTR exons 2-4. Patients were stratified into Western and Eastern Sicily sub-cohorts to train and validate supervised ML models. Multiple algorithms were compared with hyperparameter tuning via GridSearch with cross-validation. Model interpretability was ensured using SHapley Additive exPlanations (SHAP) values and permutation importance.

resultsAmong 452 patients, 68 (15%) carried a TTR mutation, 51.5% of whom were symptomatic. The most frequent red flags were sensory neuropathy (62.6%) and family history of cardiomyopathy (51.8%). Tree-based models outperformed other algorithms, with Random Forest selected for its optimal balance between precision and recall. Bilateral carpal tunnel syndrome, family history of neuropathy, and ataxia emerged as the most informative predictors. DISCUSSION: These findings suggest that integrating ML with clinical red flags may support the diagnostic decision-making process in patients referred for suspected ATTRv. However, these results should be considered exploratory and require validation in independent cohorts before clinical implementation.

Indexed as

Amyloid Neuropathies, FamilialMachine LearningAgedFemaleGenetic TestingHumansMaleMiddle AgedMutationPrealbuminRetrospective StudiesPrealbuminTTR protein, humanATTRvExplainable artificial intelligenceGenetic screeningMachine learningRed flagsTransthyretin amyloidosis

Identifiers

PMID42584723
PMCPMC13468852

What Socratic holds

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Registered trials

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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 Socratic graph.