Evidence map›Paper›PMID 28884608›Full record

ArticleClinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis2018

Analysis of Risk Factors of Stroke and Venous Thromboembolism in Females With Oral Contraceptives Use.

Petr Dulicek, Eva Ivanova, Milan Kostal, Petr Sadilek, Martin Beranek, Pavel Zak, Jana Hirmerova

Open access · bronzeAbstract read
In one paragraph

Article in Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.7field-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.

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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Combined Oral Contraceptives and the Risk of Thrombosis.International journal of molecular sciences · 2025
    Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Analysis of the Role of Female Hormones During Infection by COVID-19.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2021
    Review
  10. Article
  11. Cardiac Arrest in an Adolescent with Pulmonary Embolism.Journal of education & teaching in emergency medicine · 2021
    Article
  12. PhJournal of thrombosis and thrombolysis · 2021
    Article
  13. Article
  14. Twelve-year incidence of retinal vein occlusion and its trend in Korea.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2020
    Article
  15. Influence of Tobacco Smoking on Perioperative Risk of Venous Thromboembolism.Turkish journal of anaesthesiology and reanimation · 2020
    Review
  16. 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

7 authors at 2 institutions in 1 country.

Petr Dulicek1 4th Department of Internal Medicine and Hematology, University Hospital and Medical Faculty in Hradec Kralove, Hradec Kralove, Czech Republic.
Eva Ivanova1 4th Department of Internal Medicine and Hematology, University Hospital and Medical Faculty in Hradec Kralove, Hradec Kralove, Czech Republic.
Milan Kostal1 4th Department of Internal Medicine and Hematology, University Hospital and Medical Faculty in Hradec Kralove, Hradec Kralove, Czech Republic.
Petr Sadilek1 4th Department of Internal Medicine and Hematology, University Hospital and Medical Faculty in Hradec Kralove, Hradec Kralove, Czech Republic.
Martin Beranek2 Department of Clinical Biochemistry, University Hospital and Medical Faculty in Hradec Kralove, Hradec Kralove, Czech Republic.
Pavel Zak1 4th Department of Internal Medicine and Hematology, University Hospital and Medical Faculty in Hradec Kralove, Hradec Kralove, Czech Republic.
Jana Hirmerova3 2nd Department of Internal Medicine, Charles University Medical Faculty in Pilsen, Pilsen, Czech Republic.
University Hospital Hradec Králové · CZCharles University · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Thrombotic diathesis has been a well-known complication of oral contraceptive use for more than 50 years. This is true not only for venous thrombosis but also for an arterial one. The etiology is usually multifactorial and depends on several additional risk factors. We analyzed the prevalence of inherited and acquired thrombophilia in a cohort of 770 females who had a thrombotic event in association with oral contraceptive use (700 women with venous thromboembolism [VTE], 70 with stroke). Moreover, we tried to identify additional risk factors. Inherited thrombophilia was found in 44.5% with higher frequency in the cohort with VTE (42%) than in females with stroke (24%). The most frequent finding was factor V Leiden. Cigarette smoking was significantly more frequent in the group with stroke (50% vs 25%). The prevalence of cigarette smoking in the group with VTE did not exceed the frequency in general population. Women on oral contraceptive pills have higher risk of venous as well as arterial thrombosis. The risk of venous thrombosis is increased in females with inherited thrombophilia, whereas those with some additional acquired risk factors (especially smoking) may be predisposed to arterial thrombosis. However, the absolute risk of thrombosis in healthy women is low, far less than the risk of unintended pregnancy. Moreover, the risk may be reduced by keeping some rules before the prescription of the pills, healthy life style, and a proper choice of contraception.

Indexed as

AdultCigarette SmokingCohort StudiesContraceptives, OralFactor VFemaleHumansPregnancyRisk FactorsStrokeThrombophiliaVenous ThromboembolismYoung AdultContraceptives, OralFactor Vfactor V Leidenhormonal contraceptive pillssmokingstrokethrombophiliavenous thromboembolism

Identifiers

PMID28884608
PMCPMC6714869
OpenAlexW2750849939

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.