Evidence map›Paper›PMID 35513715›Full record

Observational studyPediatric research2022

Clinical determinants of cerebrovascular reactivity in very preterm infants during the transitional period.

Silvia Martini, Marek Czosnyka, Peter Smielewski, Marica Iommi, Silvia Galletti, Francesca Vitali, Vittoria Paoletti, Federica Camela, Topun Austin, Luigi Corvaglia

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Pediatric research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
1.8field-weighted citation impact, top 14% 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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  4. Observational
  5. Article
  6. Cerebral autoregulation in pediatric and neonatal intensive care: A scoping review.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Article
  7. Observational
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. 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

10 authors at 5 institutions in 2 countries.

Silvia MartiniNeonatal Intensive Care Unit, IRCCS S. Orsola-Malpighi Hospital, Bologna, Italy. silvia.martini9@unibo.it.
Marek CzosnykaBrain Physics Laboratory, Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Addenbrookes Hospital, Cambridge, UK.
Peter SmielewskiBrain Physics Laboratory, Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Addenbrookes Hospital, Cambridge, UK.
Marica IommiDepartment of Biomedical and Neuromotor Sciences, Division of Hygiene and Biostatistics, University of Bologna, Bologna, Italy.
Silvia GallettiNeonatal Intensive Care Unit, IRCCS S. Orsola-Malpighi Hospital, Bologna, Italy.
Francesca VitaliNeonatal Intensive Care Unit, IRCCS S. Orsola-Malpighi Hospital, Bologna, Italy.
Vittoria PaolettiNeonatal Intensive Care Unit, IRCCS S. Orsola-Malpighi Hospital, Bologna, Italy.
Federica CamelaNeonatal Intensive Care Unit, IRCCS S. Orsola-Malpighi Hospital, Bologna, Italy.
Topun Austin *Neonatal Intensive Care Unit, The Rosie Hospital, Cambridge University Hospitals, Cambridge, UK.
Luigi Corvaglia *Neonatal Intensive Care Unit, IRCCS S. Orsola-Malpighi Hospital, Bologna, Italy.
Policlinico S.Orsola-Malpighi · ITUniversity of Bologna · ITAddenbrooke's Hospital · GBRosie Hospital · GBUniversity of Cambridge · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPreterm infants are at enhanced risk of brain injury due to altered cerebral haemodynamics during postnatal transition. This observational study aimed to assess the clinical determinants of transitional cerebrovascular reactivity and its association with intraventricular haemorrhage (IVH).

methodsPreterm infants <32 weeks underwent continuous monitoring of cerebral oxygenation and heart rate over the first 72 h after birth. Serial cranial and cardiac ultrasound assessments were performed to evaluate the ductal status and to diagnose IVH onset. The moving correlation coefficient between cerebral oxygenation and heart rate (TOHRx) was calculated. Linear mixed-effect models were used to analyse the impact of relevant clinical variables on TOHRx. The association between TOHRx and IVH development was also assessed.

resultsSeventy-seven infants were included. A haemodynamically significant patent ductus arteriosus (hsPDA) (β = 0.044, 95% CI: 0.007-0.081) and ongoing dopamine treatment (β = 0.096, 95% CI: 0.032-0.159) were associated with increasing TOHRx, indicating impaired cerebrovascular reactivity. A significant association between TOHRx, mean arterial blood pressure (β = -0.004, 95% CI: -0.007, -0.001) and CRIB-II score (β = 0.007, 95% CI: 0.001-0.015) was also observed. TOHRx was significantly higher in infants developing high-grade IVH compared to those without IVH.

conclusionsDopamine treatment, low blood pressure, hsPDA and high CRIB-II are associated with impaired cerebrovascular reactivity during postnatal transition, with potential implications on IVH development. IMPACT: The correlation coefficient between cerebral oxygenation and heart rate (TOHRx) provides a non-invasive estimation of cerebrovascular reactivity, whose failure has a potential pathogenic role in the development of IVH in preterm infants. This study shows that cerebrovascular reactivity during the transitional period improves over time and is affected by specific clinical and therapeutic factors, whose knowledge could support the development of individualized neuroprotective strategies in at-risk preterm infants. The evidence of increased TOHRx in infants developing high-grade compared to low-grade or no IVH during the transitional period further supports the role of impaired cerebrovascular reactivity in IVH pathophysiology.

Indexed as

Ductus Arteriosus, PatentInfant, Premature, DiseasesCerebral HemorrhageCerebrovascular CirculationDopamineFemaleFetal Growth RetardationHumansInfantInfant, NewbornInfant, PrematureDopamine

Identifiers

PMID35513715
OpenAlexW4229021685

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.