Coronary disease & ACSCohort study

Outcomes of Patients With Myeloproliferative Neoplasms Admitted With Myocardial Infarction

JACC CardioOncolPublished

  • Retrospective cohort study
  • propensity score weighting
  • National Inpatient Sample

Authors' conclusion

Among patients hospitalized with AMI, patients with MPNs have a lower risk of in-hospital death or CA compared with patients without MPNs, although they have a higher risk of bleeding.

Study context

Population
Patients with a primary admission of acute myocardial infarction (AMI), National Inpatient Sample, January 2006 to December 2018
Participants
1,644,304 unweighted admissions
Exposure
MPN vs no MPN
  • MPNn = 5,374
Outcome
In-hospital death or cardiac arrest (CA); major bleeding
Follow-up
In-hospital

Main finding

In-hospital death or CA

Odds ratio

0.83

95% CI 0.82–0.84

MPN vs Non-MPN
OR 0.83 (95% CI 0.82–0.84)

As reported in the abstract

Observational data: associations, not effects.

Further findings

Temporal trends, Non-MPN · 2006–2018

Decreasing rate of in-hospital death or cardiac arrest (CA) and bleeding
P for trend < 0.001

Temporal trends, MPN · 2006–2018

Increasing rate of in-hospital death or CA
P for trend < 0.001
Stable rate of major bleeding
P for trend = 0.48

Safety

OutcomeOR (95% CI)
Major bleeding · after propensity score weighting1.29 (1.28–1.30)

Original publication

Outcomes of Patients With Myeloproliferative Neoplasms Admitted With Myocardial Infarction. JACC CardioOncol. Published 6 June 2023. doi:10.1016/j.jaccao.2023.03.014

Summarised from the published abstract; every number is checked against it