Evidence map›Paper›PMID 24652616›Full record

Observational studyAmerican journal of hematology2014

MRI guided iron assessment and oral chelator use improve iron status in thalassemia major patients.

Diana X Nichols-Vinueza, Matthew T White, Andrew J Powell, Puja Banka, Ellis J Neufeld

Open access · bronzeAbstract readObservational Study
In one paragraph

Observational study in American journal of hematology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 23% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Guideline
  2. Article
  3. Review
  4. MRI-T2Frontiers in medicine · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Assessment of Heart and Liver Iron Overload in Thalassemia Major Patients Using T2* Magnetic Resonance Imaging.Indian journal of hematology & blood transfusion : an official journal of Indian Society of Hematology and Blood Transfusion · 2017
    Article
  15. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Diana X Nichols-VinuezaDivision of Hematology/Oncology, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts.
Matthew T White
Andrew J Powell
Puja Banka
Ellis J Neufeld
Boston Children's Hospital · USHarvard University · US

Funding

PATHOPHYSIOLOGY OF HUMAN BLOOD CELLST32HL007574 · NHLBI · CHILDREN'S HOSPITAL BOSTON · PI Daniel Evan Bauer · 1985 to 2026
$18.4M
THALASSEMIA CLINICAL RESEARCH NETWORKU01HL065260 · NHLBI · CHILDREN'S HOSPITAL BOSTON · PI NEUFELD, ELLIS J · 2000 to 2009
$2.0M
NHLBI NIH HHS 2U01HL065260NHLBI NIH HHS T32 HL007574NHLBI NIH HHS T32HL007574NHLBI NIH HHS U01 HL065260
6 · The paper itself

Abstract

Oral iron chelators and magnetic resonance imaging (MRI) assessment of heart and liver iron burden have become widely available since the mid 2000s, allowing for improved patient compliance with chelation and noninvasive monitoring of iron levels for titration of therapy. We evaluated the impact of these changes in our center for patients with thalassemia major and transfusional iron overload. This single center, retrospective observational study covered the period from 2005 through 2012. Liver iron content (LIC) was estimated both by a T2* method and by R2 (Ferriscan® ) technique. Cardiac iron was assessed as cT2*. Forty-two patients (55% male) with transfused thalassemia and at least two MRIs were included (median age at first MRI, 17.5 y). Over a mean follow-up period of 5.2 ± 1.9 y, 190 MRIs were performed (median 4.5 per patient). Comparing baseline to last MRI, 63% of patients remained within target ranges for cT2* and LIC, and 13% improved from high values to the target range. Both the median LIC and cT2* (cR2* = 1000/cT2*) status improved over time: LIC 7.3 to 4.5 mg/g dry weight, P = 0.0004; cR2* 33.4 to 28.3 Hz, P = 0.01. Individual responses varied widely. Two patients died of heart failure during the study period. Annual MRI iron assessments and availability of oral chelators both facilitate changes in chelation dose and strategies to optimize care.

Indexed as

AdolescentAdultbeta-ThalassemiaChildFemaleHumansIronIron Chelating AgentsIron OverloadLiverMagnetic Resonance ImagingMaleMedication AdherenceMyocardiumRetrospective StudiesYoung AdultIronIron Chelating Agents

Identifiers

PMID24652616
PMCPMC5752110
OpenAlexW1522798240

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

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 OpenQuestion graph.