Evidence map›Paper›PMID 20128859›Full record

ArticleJournal of thrombosis and haemostasis : JTH2010

Incidence and risk factors for pulmonary embolism in the postpartum period.

J M Morris, C S Algert, C L Roberts

2 registry-linked trialsOpen access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Journal of thrombosis and haemostasis : JTH, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 33 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 9% 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.

NCT01321788 unknown statusnot on this mapstarted 2011, after this paper: background citation

Venous Thromboembolism Prophylaxis Post Cesarean Section(PRO-CS-Trial)

TypeobservationalSponsorKing Saud UniversityRan2011 to 2013Enrolled300ConditionsBleeding, Venous ThromboembolismArmsTINZAPARIN, PLACEBO
NCT01416454 completednot on this map

Thromboelastography to Assess Age-Related Coagulation Differences in Patients Undergoing Elective Cesarean Delivery.

TypeobservationalSponsorStanford UniversityRan2010 to 2012Enrolled46ConditionsThrombophilia
3 · Its place in the literature

Who cites it

33 citing papers in PubMed, 2 syntheses or guidelines pooled it, 119 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Evaluation of Systemic Inflammatory Indices in Pregnant Women With Deep Vein Thrombosis.American journal of reproductive immunology (New York, N.Y. : 1989) · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Atrial fibrillation considerations in the fourth trimester (postpartum period).Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2024
    Review
  12. Review
  13. Excluding pregnancy-associated deep vein thrombosis with whole-leg ultrasound.Research and practice in thrombosis and haemostasis · 2023
    Article
  14. High rates of venous thromboembolism among deliveries complicated by cancer.Journal of thrombosis and haemostasis : JTH · 2023
    Article
  15. Venous Thromboembolism in Pregnancy: Challenges and Solutions.Vascular health and risk management · 2023
    Review
  16. Article
  17. Article
  18. The Risk of Thrombosis Around Pregnancy: Where Do We Stand?Frontiers in cardiovascular medicine · 2022
    Article
  19. Article
  20. Diseases and complications of the puerperium.Deutsches Arzteblatt international · 2021
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

J M MorrisKolling Institute for Medical Research, University of Sydney, Sydney, NSW, Australia. jmorris@med.usyd.edu.au
C S Algert
C L Roberts
The University of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

SUMMARY

backgroundPregnancy and the postpartum period are times of hypercoagulability, increasing the risk of pulmonary embolism. Better quantification of risk factors can help target women who are most likely to benefit from postpartum thromboprophylaxis with heparin.

objectivesTo determine the incidence rate and timing of postpartum pulmonary embolism, and assess perinatal risk factors predictive of the event. PATIENTS/

methodsAntenatal, delivery and postpartum admission records of a cohort of 510 889 pregnancies were analysed. Pulmonary embolism was identified from ICD-10 codes at delivery, transfer or upon readmission at any time in the postpartum period.

resultsPulmonary embolism occurred in 375 women and was most common postpartum. The rate of postpartum pulmonary embolism without an antecedent thrombotic event was 0.45 per 1000 births. By the end of 4 weeks postpartum, the weekly rate approached the background rate of pulmonary embolism in the population. Although the Caesarean section rate rose significantly throughout the study period, and pulmonary embolism was more common following abdominal birth, the rate of pulmonary embolism following Caesarean birth fell. Regression modelling demonstrated that stillbirth (adjusted odds ratio [aOR] =5.97), lupus (aOR = 8.83) and transfusion of a coagulation product (aOR = 8.84) were most strongly associated with pulmonary embolism postpartum.

conclusionsPulmonary embolism most commonly occurs up to 4 weeks postpartum and following abdominal birth. Despite this the absolute event rate is low and a broadly inclusive risk factor approach to the use of pharmacological thromboprophylaxis will require many women to be exposed to heparin to prevent an embolic event.

Indexed as

Cohort StudiesFemaleHumansIncidencePregnancyPulmonary EmbolismRisk Factors

Identifiers

PMID20128859
OpenAlexW2049445903

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.