Acute cardiac care & resuscitationSecondary analysis

Sex-Specific Microaxial Flow Pump Use and Outcomes in Infarct-Related Cardiogenic Shock in the DanGer Shock Trial

J Am Coll CardiolPublished

  • Secondary analysis of the DanGer Shock randomised trial
  • prespecified
  • sex-specific
  • international
  • multicentre
  • open-label

Authors' conclusion

In DanGer Shock, women with STEMI-CS were older and presented later after onset of symptoms, resulting in higher mortality rates. This may have led to the apparent reduced treatment effect in women, but interaction between treatment allocation and sex was not significant, and data showing a benefit of mAFP appeared particularly in younger patients, regardless of sex.

Study context

Population
ST-elevation myocardial infarction (STEMI) with cardiogenic shock (STEMI-CS) excluding comatose cardiac arrest, 2013–202374 women · 281 men
Participants
355 participants
Comparison
Microaxial flow pump (mAFP) vs standard care, by sex
  • mAFPn = 179
  • Standard caren = 176reference
Primary endpoint
All-cause mortality, by sex and randomized treatment
Follow-up
180 days

Primary result

As reported in the abstract

180-day all-cause mortality, mAFP vs standard care, by sex
mAFP vs Standard careHazard ratio (95% CI)
women
1.01(0.58–1.79)
men
0.66(0.47–0.93)

Further findings

180-day all-cause mortality, women vs men

Women vs men: higher mortality in women (64.9% vs 48.8%)
P = 0.015
  • women significantly older; symptom onset to randomization 2.2-fold longer in women

180-day all-cause mortality, mAFP vs standard care, patients aged ≤76 years (subgroup)

Women (n = 41), HR
0.66 (0.25-1.76) (95% CI)
Men (n = 233), HR
0.61 (0.40-0.92) (95% CI)
  • P value for interaction = 0.92

All-cause mortality, younger patients (subgroup), long-term follow-up · up to 10 years

Women, treatment effect HR
0.45 (0.19-1.09) (95% CI)
Men, treatment effect HR
0.57 (0.40-0.82) (95% CI)

Original publication

Sex-Specific Microaxial Flow Pump Use and Outcomes in Infarct-Related Cardiogenic Shock in the DanGer Shock Trial. J Am Coll Cardiol. Published 12 November 2025. doi:10.1016/j.jacc.2025.09.019

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