According to this contemporary study, in the current organized STEMI network, patients admitted to a tertiary high-volume center for primary PCI are managed similarly and have similar prognosis regardless admission time.
Several prior studies have shown primary PCI during off-hours (6 pm to 8 am) had worse outcomes vs. on-hour interventions (8 am to 6 pm). Something similar occurred when comparing weekend and holiday outcomes vs. working days.
This study analyzed the outcomes of 2167 consecutive STEMI patients admitted to a tertiary primary PCI center 24 hours, 7 days a week, all year round.
Read also: Net Benefit of Left Atrial Appendage Closure vs. Anticoagulation in Atrial Fibrillation.
1048 patients (48.3%) were admitted on-hours and 1119 (51.7%) off-hours.
Baseline clinical characteristics were well balanced between the groups, including cardiac arrest rate (7.9% vs 8.8%) and cardiogenic shock (12.3% vs 14.7%).
Mean time between symptom onset and fist medical contact and mean time between first contact and sheath insertion resulted similar between both groups (120 min vs. 126 min; p=0.25 y 90 min vs. 93 min; p=0.58, respectively), same as radial access rate (85.6% vs. 87.5%; p=0.27).
Read also: International Consensus to Prevent Radial Artery Occlusion After Interventions.
There was no association between time and procedure and in-hospital mortality (8.1% vs. 7.0%; p=0.49) and mortality at one year (11.0% vs. 11.1%; p=0.89).
Conclusion
The contemporary organized STEMI network has successfully beaten the myth of worse off hours PCI prognosis. This was true for both in-hospital mortality and one year mortality, at least for one high volume tertiary center.
Original title: On- Versus Off-Hours Presentation and Mortality of ST-Segment Elevation Myocardial Infarction Patients Treated With Primary Percutaneous Coronary Intervention.
Reference: Benoit Lattuca et al. J Am Coll Cardiol Intv 2019, article in press.
Get the latest scientific articles on interventional cardiologySubscribe to our weekly newsletter
We are interested in your opinion. Please, leave your comments, thoughts, questions, etc., below. They will be most welcome.