Evidence map›Paper›PMID 35592812›Full record

ArticleResearch and practice in thrombosis and haemostasis2022

Platelets in the neonate: Not just a small adult.

Patricia Davenport, Martha Sola-Visner

Open access · goldAbstract read
In one paragraph

Article in Research and practice in thrombosis and haemostasis, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
6.1field-weighted citation impact, top 3% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Inflammation, anemia, and vitamin D levels associate with infant thrombocytosis risk.Research and practice in thrombosis and haemostasis · 2026
    Article
  5. Review
  6. Article
  7. Article
  8. The Neuroimmunology of Autism.Molecular neurobiology · 2025
    Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. The Hemostatic System in Newborns and the Risk of Neonatal Thrombosis.International journal of molecular sciences · 2023
    Review
  18. Article
  19. Platelets in the neonate: Not just a small adult.Research and practice in thrombosis and haemostasis · 2022
    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

2 authors at 2 institutions in 1 country.

Patricia DavenportDivision of Newborn Medicine Boston Children's Hospital Harvard Medical School Boston MA USA.
Martha Sola-VisnerDivision of Newborn Medicine Boston Children's Hospital Harvard Medical School Boston MA USA.
Boston Children's Hospital · USHarvard University · US

Funding

THE RoLE OF NEONATAL ANEMIA IN LEARNING AND MEMORYP01HL046925 · NHLBI · UNIVERSITY OF IOWA · PI NOPOULOS, PEGGY C · 1992 to 2022
$34.3M
Effects of Platelet Transfusions on Neonatal Chronic Lung Disease and Sepsis-Induced MortalityK99HL156051 · NHLBI · BOSTON CHILDREN'S HOSPITAL · PI DAVENPORT, PATRICIA ELLEN · 2021 to 2025
$1.0M
NHLBI NIH HHS K99 HL156051NHLBI NIH HHS P01 HL046925
6 · The paper itself

Abstract

Neonates, particularly those born preterm, have a high incidence of thrombocytopenia and bleeding, most commonly in the brain. Because of this, it has historically been accepted that neonates should be transfused at higher platelet counts than older children or adults, to decrease their bleeding risk. However, a number of observational studies and a recent large, randomized trial found a higher incidence of bleeding and mortality in neonates who received more platelet transfusions. The mechanisms underlying the deleterious effects of platelet transfusions in neonates are unknown, but it has been hypothesized that transfusing adult platelets into the very different physiological environment of a neonate may result in a "developmental mismatch" with potential negative consequences. Specifically, neonatal platelets are hyporeactive in response to multiple agonists and upon activation express less surface P-selectin than adult platelets. However, this hyporeactivity is well balanced by factors in neonatal blood that promote clotting, such as the elevated hematocrit, elevated von Willebrand factor (VWF) levels, and a predominance of ultra-long VWF polymers, with the net result of normal neonatal primary hemostasis. So far, most studies on the developmental differences between neonatal and adult platelets have focused on their hemostatic functions. However, it is now clear that platelets have important nonhemostatic functions, particularly in angiogenesis, immune responses, and inflammation. Whether equally important developmental differences exist with regard to those nonhemostatic platelet functions and how platelet transfusions perturb those processes in neonates remain unanswered questions.

Indexed as

hemostasisinflammationneonateplateletplatelet transfusion

Identifiers

PMID35592812
PMCPMC9102610
OpenAlexW4280631718

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.