Evidence map›Paper›PMID 31684693›Full record

SynthesisThe Cochrane database of systematic reviews2019

Regular long-term red blood cell transfusions for managing chronic chest complications in sickle cell disease.

Lise J Estcourt, Sally Hopewell, Marialena Trivella, Ian R Hambleton, Gavin Cho

Abstract readSystematic Review
In one paragraph

Synthesis in The Cochrane database of systematic reviews, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

3 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Indications for transfusion in the management of sickle cell disease.Hematology. American Society of Hematology. Education Program · 2021
    Review
  3. Xanthine Oxidase Drives Hemolysis and Vascular Malfunction in Sickle Cell Disease.Arteriosclerosis, thrombosis, and vascular biology · 2021
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Lise J EstcourtNHS Blood and Transplant, Haematology/Transfusion Medicine, Level 2, John Radcliffe Hospital, Headington, Oxford, UK, OX3 9BQ.
Sally HopewellUniversity of Oxford, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), Botnar Research Centre, Windmill Road, Oxford, Oxfordshire, UK, OX3 7LD.
Marialena TrivellaUniversity of Oxford, Centre for Statistics in Medicine, Botnar Research Centre, Windmill Road, Oxford, UK, OX3 7LD.
Ian R HambletonCaribbean Institute for Health Research, Chronic Disease Research Centre, The University of the West Indies, Jemotts Lane, Bridgetown, Barbados, BB11115.
Gavin ChoNHS Blood and Transplant, Colindale Avenue, London, UK, NW9 5BG.

Funding

Department of Health 13/89/09
6 · The paper itself

Abstract

backgroundSickle cell disease is a genetic haemoglobin disorder, which can cause severe pain, significant end-organ damage, pulmonary complications, and premature death. Sickle cell disease is one of the most common severe monogenic disorders in the world, due to the inheritance of two abnormal haemoglobin (beta globin) genes. The two most common chronic chest complications due to sickle cell disease are pulmonary hypertension and chronic sickle lung disease. These complications can lead to morbidity (such as reduced exercise tolerance) and increased mortality. This is an update of a Cochrane Review first published in 2011 and updated in 2014 and 2016.

objectivesWe wanted to determine whether trials involving people with sickle cell disease that compare regular long-term blood transfusion regimens with standard care, hydroxycarbamide (hydroxyurea) any other drug treatment show differences in the following: mortality associated with chronic chest complications; severity of established chronic chest complications; development and progression of chronic chest complications; serious adverse events. SEARCH

methodsWe searched the Cochrane Cystic Fibrosis and Genetic Disorders Group's Haemoglobinopathies Trials Register. Date of the last search: 19 September 2019. We also searched for randomised controlled trials in the Cochrane Central Register of Controlled Trials (CENTRAL) (the Cochrane Library, Issue 10, 14 November 2018), MEDLINE (from 1946), Embase (from 1974), CINAHL (from 1937), the Transfusion Evidence Library (from 1950), and ongoing trial databases to 14 November 2018. SELECTION CRITERIA: We included randomised controlled trials of people of any age with one of four common sickle cell disease genotypes, i.e. Hb SS, Sβº, SC, or Sβ DATA COLLECTION AND ANALYSIS: We used the standard methodological procedures expected by Cochrane. MAIN

resultsNo studies matching the selection criteria were found. AUTHORS'

conclusionsThere is a need for randomised controlled trials looking at the role of long-term transfusion therapy in pulmonary hypertension and chronic sickle lung disease. Due to the chronic nature of the conditions, such trials should aim to use a combination of objective and subjective measures to assess participants repeatedly before and after the intervention.

Indexed as

Acute Chest SyndromeAnemia, Sickle CellAntisickling AgentsErythrocyte TransfusionHumansHypertension, PulmonaryRandomized Controlled Trials as TopicAntisickling Agents

Identifiers

PMID31684693
PMCPMC6814284

What OpenQuestion holds

Textmetadata
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.