What does this research mean for the field?

A threshold of 1.5 × 10 9 /L for absolute eosinophil count is recommended for hematology referral in patients with eosinophilia, particularly for low-risk and asymptomatic individuals. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This research aims to refine eosinophilia referral thresholds and understand associated diagnoses.

March 17, 2026European Journal Of Haematology

Redefining Hematology Referral Thresholds for Eosinophilia

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Authors

PPPayal PatelIntermountain Healthcare CLCorinne LaVasseurOregon Health & Science University PSParmis SahrapimaOregon Health & Science University

Discussion

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Implication

Retrospective study refines eosinophilia thresholds for hematology referrals, indicating clinical implications.

Key Points

This research aims to refine eosinophilia referral thresholds and understand associated diagnoses.
Conducted a retrospective study of patients referred to hematology for eosinophilia from 2015 to 2025.
Included patients with confirmed eosinophilia (AEC ≥ 0.5 × 10 9 /L).
Utilized ROC analysis to evaluate peak AEC as a predictor for clinically meaningful eosinophilia.
Evaluated 142 patients for eosinophilia during the study period.
44.8% had idiopathic eosinophilia, while 20.3% were diagnosed with hypereosinophilic syndrome.
Identified secondary causes included asthma (9.8%) and parasitic infections (7.7%).
Eosinophilia-specific therapies given to 22.5% of patients.
ROC analysis showed peak AEC as a strong predictor with an area under the curve of 0.83.

Cite This Study

Patel et al. (2026) studied this question.

synapsesocial.com/papers/69b8f10fdeb47d591b8c5d2e https://doi.org/10.1111/ejh.70152

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March 17, 2026European Journal Of Haematology

Redefining Hematology Referral Thresholds for Eosinophilia

View Full Paper

Ask AI

Bookmark

Authors

PPPayal PatelIntermountain Healthcare CLCorinne LaVasseurOregon Health & Science University PSParmis SahrapimaOregon Health & Science University

Discussion

Member takes

Implication

Retrospective study refines eosinophilia thresholds for hematology referrals, indicating clinical implications.

Key Points

This research aims to refine eosinophilia referral thresholds and understand associated diagnoses.
Conducted a retrospective study of patients referred to hematology for eosinophilia from 2015 to 2025.
Included patients with confirmed eosinophilia (AEC ≥ 0.5 × 10 9 /L).
Utilized ROC analysis to evaluate peak AEC as a predictor for clinically meaningful eosinophilia.
Evaluated 142 patients for eosinophilia during the study period.
44.8% had idiopathic eosinophilia, while 20.3% were diagnosed with hypereosinophilic syndrome.
Identified secondary causes included asthma (9.8%) and parasitic infections (7.7%).
Eosinophilia-specific therapies given to 22.5% of patients.
ROC analysis showed peak AEC as a strong predictor with an area under the curve of 0.83.

Cite This Study

Patel et al. (2026) studied this question.

synapsesocial.com/papers/69b8f10fdeb47d591b8c5d2e https://doi.org/10.1111/ejh.70152

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