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The DOI matches its Crossref record; 18 of the 18 references it cites were found in a registry or an index.

Survival in Medically Treated Patients with Homozygous β-Thalassemia

Open access
Olivieri, Nancy F., Nathan, David G., MacMillan, James H., Wayne, Alan S., Liu, Peter P., McGee, Allison, Martin, Marie, Koren, Gideon, Cohen, Alan R.·1994·New England Journal of Medicine

Abstract

BACKGROUND: The prognosis of patients with homozygous beta-thalassemia (thalassemia major) has been improved by transfusion and iron-chelation therapy. We analyzed outcome and prognostic factors among patients receiving transfusions and chelation therapy who had reached the age at which iron-induced cardiac disease, the most common cause of death, usually occurs. METHODS: Using the duration of life without the need for either inotropic or antiarrhythmic drugs as a measure of survival without cardiac disease, we studied 97 patients born before 1976 who were treated with regular transfusions and chelation therapy. We used Cox proportional-hazards analysis to assess the effect of prognostic factors and life-table analysis to estimate freedom from cardiac disease over time. RESULTS: Of the 97 patients, 59 (61 percent) had no cardiac disease; 36 (37 percent) had cardiac disease, and 18 of them had died. Univariate analysis demonstrated that factors affecting cardiac disease-free survival were age at the start of chelation therapy (P < 0.001), the natural log of the serum ferritin concentration before chelation therapy began (P = 0.01), the mean ferritin concentration (P < 0.001), and the proportion of ferritin measurements exceeding 2500 ng per milliliter (P < 0.001). With stepwise Cox modeling, only the proportion of ferritin measurements exceeding 2500 ng per milliliter affected cardiac disease-free survival (P < 0.001). Patients in whom less than 33 percent of the serum ferritin values exceeded 2500 ng per milliliter had estimated rates of survival without cardiac disease of 100 percent after 10 years of chelation therapy and 91 percent after 15 years. CONCLUSIONS: The prognosis for survival without cardiac disease is excellent for patients with thalassemia major who receive regular transfusions and whose serum ferritin concentrations remain below 2500 ng per milliliter with chelation therapy.

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Crossref · 10.1056/nejm199409013310903

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Metadata

Authors
Olivieri, N. F., Nathan, D. G., MacMillan, J. H., Wayne, A. S., Liu, P. P., McGee, A., Martin, M., Koren, G., & Cohen, A. R.
Venue
New England Journal of Medicine
Published
1994-09
Volume
331
Issue
9
Pages
574-578
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W2317072972
Cited by
852
References
18
FWCI
10.92
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Survival in Medically Treated Patients with Homozygous β-Thalassemia. https://app.cochat.ai/papers/10.1056/nejm199409013310903
The paper
Olivieri, N. F., Nathan, D. G., MacMillan, J. H., Wayne, A. S., Liu, P. P., McGee, A., Martin, M., Koren, G., & Cohen, A. R. (1994). Survival in Medically Treated Patients with Homozygous β-Thalassemia. New England Journal of Medicine. https://doi.org/10.1056/nejm199409013310903

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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