Evidence map›Paper›PMID 19174413›Full record

ArticleArchives of disease in childhood. Fetal and neonatal edition2009

Permissive hypotension in the extremely low birthweight infant with signs of good perfusion.

E M Dempsey, F Al Hazzani, K J Barrington

Abstract read
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In one paragraph

Article in Archives of disease in childhood. Fetal and neonatal edition, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 2 pooled it
9.3field-weighted citation impact, top 2% 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

61 citing papers in PubMed, 2 syntheses or guidelines pooled it, 185 citations in OpenAlex.

  1. Pooled it
  2. A meta-analysis of dopamine use in hypotensive preterm infants: blood pressure and cerebral hemodynamics.Journal of perinatology : official journal of the California Perinatal Association · 2011
    Pooled it
  3. Trial
  4. Hypotension in Preterm Infants (HIP) randomised trial.Archives of disease in childhood. Fetal and neonatal edition · 2021
    Trial
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  9. A FAR-Out approach for evaluating the impact of clinical practice changes on severe intracranial hemorrhage in preterm infants.Journal of perinatology : official journal of the California Perinatal Association · 2026
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  14. Observational
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  18. [Influence of hypotension on the short-term prognosis of preterm infants with a gestational age of <32 weeks].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2022
    Article
  19. Article
  20. Article

1 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 3 institutions in 3 countries.

E M DempseyNeonatology, Cork University Maternity Hospital, Cork, Ireland.
F Al Hazzani
K J Barrington
Cork University Hospital · IEKing Faisal Specialist Hospital & Research Centre · SAUniversité de Montréal · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionMany practitioners routinely treat infants whose mean arterial blood pressure in mm Hg is less than their gestational age in weeks (GA).

objectiveTo assess the effectiveness of utilising a combined approach of clinical signs, metabolic acidosis and absolute blood pressure (BP) values when deciding to treat hypotension in the extremely low birthweight (ELBW) infant.

methodsRetrospective cohort study of all live born ELBW infants admitted to our neonatal intensive care unit over a 4-year period. Patients were grouped as either normotensive (BP never less than GA), hypotensive and not treated (BP<GA but signs of good perfusion; we termed this permissive hypotension) and hypotensive treated (BP<GA with signs of poor perfusion).

results118 patients were admitted during this period. Blood pressure data were available on 108 patients. 53% of patients were hypotensive (mean BP in mm Hg less than GA in weeks). Treated patients had lower birth weight and GA, and significantly lower blood pressure at 6, 12, 18 and 24 h. Normotensive patients and patients designated as having permissive hypotension had similar outcomes. Mean blood pressure in the permissive group increased from 26 mm Hg at 6 h to 31 mm Hg at 24 h. In a logistic regression model, treated hypotension is independently associated with mortality, odds ratio 8.0 (95% CI 2.3 to 28, p<0.001).

conclusionsBlood pressure spontaneously improves in ELBW infants during the first 24 h. Infants hypotensive on GA criteria but with clinical evidence of good perfusion had as good an outcome as normotensive patients. Treated low blood pressure was associated with adverse outcome.

Indexed as

Birth WeightBlood PressureDecision MakingGestational AgeHumansHypotensionInfant, Extremely Low Birth WeightInfant, NewbornIntensive Care, NeonatalRetrospective StudiesUnnecessary Procedures

Identifiers

PMID19174413
OpenAlexW2123941824

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.