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Haematological changes and infectious complications in anorexia nervosa: a case-control study
O Devuyst1, M Lambert, J Rodhain
1Department of General Internal Medicine, St. Luc Academic Hospital, University of Louvain Medical School, Brussels, Belgium.
The Quarterly Journal of Medicine
|December 1, 1993
Summary
Anorexia nervosa (AN) patients show higher rates of anemia, leucopenia, and thrombocytopenia compared to controls. These hematological abnormalities correlate with AN severity and increase infection risk.
Area of Science:
- Hematology
- Psychiatry
- Internal Medicine
Background:
- Anorexia nervosa (AN) is associated with various medical complications.
- Hematological abnormalities are frequently observed in AN patients.
- The relationship between these abnormalities, AN severity, and infection risk requires further investigation.
Purpose of the Study:
- To determine the prevalence of hematological abnormalities in AN patients.
- To assess the correlation between these abnormalities and AN severity.
- To evaluate the impact of hematological changes on infection propensity in AN.
Main Methods:
- Retrospective study of 67 AN patients meeting DSM-III-R criteria.
- Comparison with 67 age- and sex-matched normal controls.
- Analysis of physical findings, routine hematological data, and infectious events.
Main Results:
- AN patients exhibited significantly higher prevalence of anemia (27% vs 1.5%), leucopenia (36% vs 1.5%), neutropenia (17% vs 0%), and thrombocytopenia (10% vs 0%).
- Lower body-mass index (BMI) correlated with reduced leucocyte, neutrophil, and red blood cell counts.
- Severe infections occurred in 9% of AN patients, significantly more frequent in those with neutropenia or low BMI.
Conclusions:
- AN patients present with a higher prevalence of anemia, leucopenia, and thrombocytopenia.
- Hematological abnormalities in AN are linked to disease severity and an increased risk of infections.
- Routine hematological monitoring is crucial for managing AN patients.