Evidence map›Paper›PMID 21153401›Full record

ArticleIntensive care medicine2011

Pharmacokinetics and clinical predictors of surfactant redosing in respiratory distress syndrome.

Paola E Cogo, Maddalena Facco, Manuela Simonato, Daniele De Luca, Francesca De Terlizi, Umberto Rizzotti, Giovanna Verlato, Maria Paola Bellagamba, Virgilio P Carnielli

Open access · bronzeAbstract read
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In one paragraph

Article in Intensive care medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
1.4field-weighted citation impact, top 17% 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

21 citing papers in PubMed, 2 syntheses or guidelines pooled it, 53 citations in OpenAlex.

  1. Pooled it
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  3. Higher (40%) versus lower (30%) FiOEuropean journal of pediatrics · 2025
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  13. RDS-NExT workshop: consensus statements for the use of surfactant in preterm neonates with RDS.Journal of perinatology : official journal of the California Perinatal Association · 2023
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  17. RETREATMENT WITH SURFACTANT IN VERY LOW BIRTH WEIGHT PRETERM INFANTS: RISK PREDICTORS AND THEIR INFLUENCE ON NEONATAL OUTCOMES.Revista paulista de pediatria : orgao oficial da Sociedade de Pediatria de Sao Paulo · 2020
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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

9 authors at 5 institutions in 1 country.

Paola E CogoDepartment of Paediatrics, University of Padova, Padova, Italy. cogo@pediatria.unipd.it
Maddalena Facco
Manuela Simonato
Daniele De Luca
Francesca De Terlizi
Umberto Rizzotti
Giovanna Verlato
Maria Paola Bellagamba
Virgilio P Carnielli
University of Padua · ITAzienda Ospedaliero Universitaria Ospedali Riuniti · ITCasa di Cura Villa Garda · ITInterventi Geo Ambientali (Italy) · ITOspedali Riuniti di Ancona · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleLimited data are available on predictors for surfactant retreatment in preterm infants with respiratory distress syndrome (RDS).

objectiveTo study the pharmacokinetics of exogenous surfactant and the clinical parameters associated with surfactant redosing.

methodsExogenous surfactant pharmacokinetics was studied in 125 preterm infants (birth weight 997 ± 432 g; gestational age 28.0 ± 2.6 weeks) with moderate to severe RDS requiring mechanical ventilation. Clinical and respiratory parameters were recorded hourly, and surfactant disaturated-phosphatidylcholine (DSPC) half-life, pool size, and endogenous synthesis were calculated by stable isotope tracing of surfactant DSPC isolated from serial tracheal aspirates. Univariate and multiple logistic regression were used to study the effects of clinical and surfactant kinetic variables on the need for redosing.

resultsFifty-three infants (42.4%) received one dose, 51 (40.8%) two doses, and 21 (16.8%) three doses. Median (interquartile range, IQR) DSPC half-life was 21 (13-39), 11 (7-17), and 10 (7-16) h after the first, second, and third dose, respectively (p = 0.07). Univariate analysis showed a significantly shorter DSPC half-life in infants requiring more surfactant doses. On logistic analysis, risk of redosing was higher with lower birth weight, worse radiological score, shorter DSPC half-life, and surfactant dose of 100 mg/kg, whilst it was lower with elective high-frequency ventilation at time of intubation, instead of conventional ventilation.

conclusionsWhen optimizing surfactant replacement therapy and its cost-benefit ratio, pharmacokinetics and clinical variables associated with need of redosing should be taken into account.

Indexed as

FemaleForecastingHumansInfant, Low Birth WeightInfant, NewbornIsotope LabelingItalyLogistic ModelsMalePhosphatidylcholinesProspective StudiesRespiratory Distress Syndrome, NewbornRetreatmentSurface-Active AgentsPhosphatidylcholinesSurface-Active Agents

Identifiers

PMID21153401
OpenAlexW2057322210

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.