Evidence map›Paper›PMID 24616593›Full record

Trial reportJournal of Korean medical science2014

Prophylactic effect of erythropoietin injection to prevent acute mountain sickness: an open-label randomized controlled trial.

Kyoung Heo, Joong Koo Kang, Chang Min Choi, Moo Song Lee, Kyoung Woo Noh, Soon Bae Kim

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of Korean medical science, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
0.9field-weighted citation impact, top 22% 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

11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 15 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Article
  6. Altitude Pre-Acclimatization with an Erythropoiesis-Stimulating Agent.European journal of case reports in internal medicine · 2023
    Article
  7. Observational
  8. Review
  9. Review
  10. Article
  11. 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

6 authors at 2 institutions in 1 country.

Kyoung HeoDepartment of Neurology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.ORCID 0000-0002-0790-9837
Joong Koo KangDepartment of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.ORCID 0000-0003-0941-3824
Chang Min ChoiDivision of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.ORCID 0000-0002-2881-4669
Moo Song LeeDepartment of Clinical Epidemiology and Biostatistics, University of Ulsan College of Medicine, Seoul, Korea.ORCID 0000-0003-1085-9073
Kyoung Woo NohDivision of Nephrology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.ORCID 0000-0001-7149-435X
Soon Bae KimDivision of Nephrology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.ORCID 0000-0003-1649-0318
Ulsan College · KRYonsei University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study was performed to evaluate whether increasing hemoglobin before ascent by prophylactic erythropoietin injections prevents acute mountain sickness (AMS). This open-label, randomized, controlled trial involved 39 healthy volunteers with hemoglobin ≤ 15.5 g/dL who were divided randomly into erythropoietin (n=20) and control (n=19) groups. Epoetin alpha 10,000 IU injections were given weekly for four consecutive weeks. On day 1, and 7 days after the last injection (day 29), oxygen saturation (SaO2), and hemoglobin were measured. The subjects departed Seoul on day 30 and arrived at Annapurna base camp (ABC, 4,130 m) on day 34. AMS was diagnosed when headache and Lake Louise score (LLS) of ≥ 3 were present. Immediate descent criteria followed US Army recommendations. Two groups differ in hemoglobin levels on day 29 (15.4 ± 1.1 vs 14.2 ± 1.0 g/dL, P=0.001). At ABC, erythropoietin group had a significantly lower mean LLS, AMS incidence, and number of subjects who met immediate descent criteria. Multiple logistic regression analysis showed that SaO2<87% and control group, but not hemoglobin<15.0 g/dL, independently predicted satisfaction of immediate descent criteria. Erythropoietin-related adverse effects were not observed. In conclusion, erythropoietin may be an effective prophylaxis for AMS.(Clinical Trial Registry Number; NCT 01665781).

Indexed as

Acute DiseaseAdultAltitude SicknessBlood PressureDrug Administration ScheduleEpoetin AlfaErythropoietinFemaleHeadacheHemoglobinsHumansIncidenceLogistic ModelsMaleMiddle AgedOdds RatioEpoetin AlfaErythropoietinHemoglobinsOxygenRecombinant ProteinsAcute Mountain SicknessArterial Oxygen SaturationErythropoietinHemoglobins

Identifiers

PMID24616593
PMCPMC3945139
OpenAlexW2008327330

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.