Coronary disease & ACS

Effects of supersaturated oxygen therapy on infarct size and microvascular obstruction following myocardial infarction: A systematic review and meta-analysis

Am Heart JPublished Systematic review and meta-analysis

Authors' conclusion

SSO₂ therapy significantly reduced infarct size and MVO in patients undergoing PCI for STEMI.

Study context

Population
Patients with STEMI undergoing percutaneous coronary intervention (PCI)
Participants
1,660 patients6 studies
Comparison
PCI plus SSO₂ vs PCI alone
  • PCI plus SSO₂n = 548
Outcome
Infarct size and microvascular obstruction (MVO)
Methodological detailsrandom-effects models
  • Random-effects models

Pooled result

As reported in the abstract

PCI plus SSO₂ vs PCI aloneEstimate (95% CI)P value
Infarct size
MD −4.31(−6.70 to −1.92)
P < 0.01
MVO
SMD −0.72(−1.11 to −0.34)
P < 0.01

Further pooled results

Major adverse cardiovascular events (MACE), all-cause mortality, re-infarction, target vessel revascularization (TVR)

Comparable between the groups

Original publication

Effects of supersaturated oxygen therapy on infarct size and microvascular obstruction following myocardial infarction: A systematic review and meta-analysis. Am Heart J. Published 24 November 2025. doi:10.1016/j.ahj.2025.107311

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