liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Gender difference in prognostic impact of in-hospital bleeding after myocardial infarction - data from the SWEDEHEART registry.
Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Cardiology in Linköping.
Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Cardiology in Linköping.
Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Cardiology in Linköping.ORCID iD: 0000-0002-2608-2062
Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Cardiology in Linköping.
2016 (English)In: European heart journal. Acute cardiovascular care, ISSN 2048-8734, Vol. 6, p. 463-472Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Bleeding complications increase mortality in myocardial infarction patients. Potential gender difference in bleeding regarding prevalence and prognostic impact is still controversial.

OBJECTIVES: Gender comparison regarding incidence and prognostic impact of bleeding in patients hospitalised with myocardial infarction during 2006-2008.

METHODS: Observational study from the SWEDEHEART register. Outcomes were in-hospital bleedings, in-hospital mortality and one-year mortality in hospital survivors.

RESULTS: A total number of 50,399 myocardial infarction patients were included, 36.6% women. In-hospital bleedings were more common in women (1.9% vs. 3.1%, p<0.001) even after multivariable adjustment (odds ratio (OR) 1.17, 95% confidence interval (CI) 1.01-1.37). The increased risk for women was found in ST-elevation myocardial infarction (OR 1.46, 95% CI 1.10-1.94) and in those who underwent percutaneous coronary intervention (OR 1.80, 95% CI 1.45-2.24). In contrast the risk was lower in medically treated women (OR 0.79, 95% CI 0.62-1.00). After adjustment, in-hospital bleeding was associated with higher risk of one-year mortality in men (OR 1.35, 95% CI 1.04-1.74), whereas this was not the case in women (OR 0.97, 95% CI 0.72-1.31).

CONCLUSIONS: Female gender is an independent risk factor of in-hospital bleeding after myocardial infarction. A higher bleeding risk in women appeared to be restricted to invasively treated patients and ST-elevation myocardial infarction patients. Even though women have higher short- and long-term mortality, there was no difference between the genders among bleeders. After multivariable adjustment the prognostic impact of bleeding complications was higher in men.

Place, publisher, year, edition, pages
Sage Publications, 2016. Vol. 6, p. 463-472
Keywords [en]
Myocardial infarction; bleeding; gender; prognosis
National Category
Cardiac and Cardiovascular Systems
Identifiers
URN: urn:nbn:se:liu:diva-124287DOI: 10.1177/2048872615610884ISI: 000385817800008PubMedID: 26450782OAI: oai:DiVA.org:liu-124287DiVA, id: diva2:897445
Available from: 2016-01-25 Created: 2016-01-25 Last updated: 2019-01-10
In thesis
1. Acute coronary syndrome: bleeding, platelets and gender
Open this publication in new window or tab >>Acute coronary syndrome: bleeding, platelets and gender
2019 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

BACKGROUND

Bleeding complications increase mortality in patients with acute coronary syndrome (ACS). Potential gender difference in bleeding regarding prevalence, location, severity and prognostic impact is still controversial and not well investigated. In regard to this aspect the relevance of triple antithrombotic therapy (TAT) is questioned. There is an ongoing debate on the clinical implications of TAT and furthermore assumed that bleeding complications, except impact on outcome, also are associated with great influence on health economy.

The main focus of this thesis was to further investigate the incidence and impact of bleeding complications in patients treated for ACS, with special reference to gender disparities, TAT and health economics. The thesis will highlight the importance of improved bleeding prevention strategies for both men and women.

METHOD

Paper I, II and III

Observational studies from the SWEDEHEART register.

In paper I we investigated patients hospitalised with myocardial infarction (MI) during 2006–2008. Outcomes were in-hospital bleedings, in-hospital mortality and one-year mortality in hospital survivors.

In paper II, all patients with MI, in the County of Östergötland, Sweden during 2010 were included and followed for one year. The patients' medical records were evaluated, in relation to short and long-term bleeding complications, bleeding location, withdrawal of platelet inhibiting drugs and nonfatal MI and death.

Paper III included all patients discharged with (TAT) in the County of Östergötland 2009-2015. Information about bleeds and ischemic complications during one-year follow-up were retrieved from the medical records. Estimation of the health care costs associated with bleeding episodes were added to the evaluation.

Paper IV

Patients with MI, scheduled for coronary angiography were recruited. All patients received clopidogrel and aspirin. A subgroup of patients received GP IIb/IIIa-inhibitor. Outcomes were platelet aggregation assessed at several time points, using a Multiplate impedance aggregometer, measurement of P-selectin in plasma, evaluation of high residual platelet reactivity (HRPR) and low residual platelet reactivity (LRPR) respectively and incidence of bleeding complications. A comparison between women and men was performed.

RESULTS

Paper I

A total number of 50.399 patients were included, 36.6% women. In-hospital bleedings were more common in women (1.9% vs. 3.1%, p<0.001) even after multivariable adjustment (OR 1.17, 95%, CI 1.01–1.37). The increased risk for women was found in STEMI (OR 1.46, 95% CI 1.10–1.94) and in those who underwent PCI (OR 1.80, 95% CI 1.45–2.24).

In contrast the risk was lower in medically treated women (OR 0.79, 95% CI 0.62–1.00). After adjustment, in-hospital bleeding was associated with higher risk of oneyear mortality in men (OR 1.35, 95% CI 1.04–1.74), whereas this was not the case in women (OR 0.97, 95% CI 0.72–1.31).

Paper II

In total 850 consecutive patients were included. The total incidence of bleeding events was 24.4% (81 women and 126 men, p=ns). The incidence of all in hospital bleeding events was 13.2%, with no gender difference. Women had significantly more minor nonsurgery related bleeding events than men (5% vs 2.2%, p=0.02). During follow-up, 13.5% had a bleeding, with more non-surgery related bleeding events among women, 14.7% vs 9.7% (p=0.03). The most common bleeding localisation was the gastrointestinal tract, more in women than men (12.1% vs 7.6%, p=0.03). Women also had more access site bleeding complications (4% vs 1.7%, p=0.04), while men had more surgery related bleeding complications (6.4% vs 0.9%, p≤0.001). Increased mortality was found only in men with non-surgery related bleeding events (p=0.008).

Paper III

Among 272 identified patients, 156 bleeds occurred post-discharge, of which 28.8% were of gastrointestinal origin. In total 54.4% had at least one bleed during or after the index event and 40.1% bled post-discharge of whom 28.7% experienced a TIMI major or minor bleeding. Women discontinued TAT prematurely more often than men (52.9 vs 36.1%, p=0.01) and bled more (48.6 vs. 37.1%, p=0.09). One-year mean health care costs were EUR 575 and EUR 5787 in non-bleeding and bleeding patients, respectively.

Paper IV

We recruited 125 patients (37 women and 88 men). We observed significantly more inhospital bleeding events in women as compared to men (18.9% vs 6.8%, p=0.04). There were no differences in platelet aggregation using three different agonists, reflecting treatment of GPIIb/IIIa inhibitors, clopidogrel and aspirin, at four different time-points nor were there any differences in p-selectin in plasma 3 days after admission.

CONCLUSION

There is a remarkably high bleeding incidence among patients treated with DAPT and even more so if treated with TAT. Female gender is an independent risk factor of inhospital bleeding after myocardial infarction, this higher bleeding risk in women appears to be restricted to invasively treated patients and STEMI patients. Even if women had higher short- and long-term mortality, there was no difference between the genders among those who bled. After multivariable adjustment the prognostic impact of bleeding complications was higher in men

Women seem to experience more minor/minimal bleeding complications than men, predominantly GI bleeding events and access site bleeding events, with no apparent impact on outcome.

In contrast men with non-surgery related bleeding complications had higher mortality. There is a lack of differences between the genders concerning platelet aggregation. Our results do not support gender disparities in platelet reactivity and excess dosing as a major explanation for increased bleeding risk in women. Improved bleeding prevention strategies are warranted for both men and women.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2019. p. 74
Series
Linköping University Medical Dissertations, ISSN 0345-0082 ; 1654
National Category
Cardiac and Cardiovascular Systems Surgery Public Health, Global Health, Social Medicine and Epidemiology
Identifiers
urn:nbn:se:liu:diva-153621 (URN)10.3384/diss.diva-153621 (DOI)9789176851654 (ISBN)
Public defence
2019-02-01, Hugo Theorell salen, Campus US, Linköpings universitet, Linköping, 09:00 (Swedish)
Opponent
Supervisors
Available from: 2019-01-04 Created: 2019-01-04 Last updated: 2019-01-04Bibliographically approved

Open Access in DiVA

fulltext(715 kB)157 downloads
File information
File name FULLTEXT01.pdfFile size 715 kBChecksum SHA-512
b78a1040a89eec4bb5e49423bce1670f87fc080b4b8f9331695f2fa7e6d4585b923bee3f1d16da3c8c42ccd83cf6e99e91bf819e551fa659c53e859af03f3979
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMed

Authority records BETA

Holm, AnnaSederholm-Lawesson, SofiaSwahn, EvaAlfredsson, Joakim

Search in DiVA

By author/editor
Holm, AnnaSederholm-Lawesson, SofiaSwahn, EvaAlfredsson, Joakim
By organisation
Division of Cardiovascular MedicineFaculty of Medicine and Health SciencesDepartment of Cardiology in Linköping
Cardiac and Cardiovascular Systems

Search outside of DiVA

GoogleGoogle Scholar
Total: 157 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 228 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf