Coronary disease & ACSCohort study

Periprocedural Myocardial Infarction and Clinical Outcomes in Diffuse versus Focal Coronary Artery Disease

Am Heart JPublished

  • registry analysis

Authors' conclusion

PMI occurred more frequently after PCI for vessels with diffuse than focal coronary physiology, particularly phenotypes with higher troponin elevation or angiographic complications. Associations with 1-year TVF were observed only for PMI phenotypes incorporating angiographic complications; however, findings should be interpreted cautiously because TVF events were sparse.

Study context

Population
Patients undergoing PCI in the pullback pressure gradient (PPG) Global registry, treated vessels classified as focal or diffuse by pullback pressure gradient (PPG)patients undergoing PCI
Participants
855 patients
Exposure
diffuse vs focal
Outcome
target vessel failure (TVF), a composite of cardiac death, spontaneous target-vessel myocardial infarction, or ischemia-driven target-vessel revascularization
Follow-up
1-year

Main finding

As reported in the abstract

Target vessel failure (TVF) occurred within 1 year

17

Observational data: associations, not effects.

Further findings

Fourth UDMI PMI

Troponin elevation ≥70 × URL

PMI with flow-limiting angiographic complications

PMI with ischemic electrocardiographic changes

  • Fourth Universal Definition of Myocardial Infarction (UDMI) periprocedural myocardial infarction (PMI): p=0.048
  • Troponin elevation ≥70 × URL: p=0.041
  • PMI with flow-limiting angiographic complications: p=0.015
  • PMI with ischemic electrocardiographic changes: p=1.000

Original publication

Periprocedural Myocardial Infarction and Clinical Outcomes in Diffuse versus Focal Coronary Artery Disease. Am Heart J. Published 29 September 2026. doi:10.1016/j.ahj.2026.107617

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