When is door-to-balloon time critical? Analysis from the HORIZONS-AMI (Harmonizing outcomes with revascularization and stents in acute myocardial infarction) and CADILLAC (Controlled abciximab and device investigation to lower late angioplasty complications) trials

Bruce R. Brodie, Bernard J. Gersh, Thomas Stuckey, Bernhard Witzenbichler, Giulio Guagliumi, Jan Z. Peruga, Dariusz Dudek, Cindy L. Grines, David Cox, Helen Parise, Abhiram Prasad, Alexandra J. Lansky, Roxana Mehran, Gregg W. Stone

Research output: Contribution to journalArticle

68 Scopus citations


Objectives: Our objective was to evaluate the impact of door-to-balloon time (DBT) on mortality depending on clinical risk and time to presentation. Background: DBT affects the mortality rate in ST-segment elevation myocardial infarction treated with primary percutaneous coronary intervention, but the impact may vary across subgroups. Methods: The CADILLAC (Controlled Abciximab and Device Investigation to Lower Late Angioplasty Complications) and HORIZONS-AMI (Harmonizing Outcomes with Revascularization and Stents in Acute Myocardial Infarction) trials evaluated stent and antithrombotic therapy in patients undergoing primary percutaneous coronary intervention. We studied the impact of DBT on mortality in 4,548 patients based on time to presentation and clinical risk. Results: The 1-year mortality rate was lower in patients with short versus long DBT (≤90 min vs. >90 min, 3.1% vs. 4.3%, p = 0.045). Short DBTs were associated with a lower mortality rate in patients with early presentation (≤90 min: 1.9% vs. 3.8%, p = 0.029) but not those with later presentation (>90 min: 4.0% vs. 4.6%, p = 0.47). Short DBTs showed similar trends for a lower mortality rate in high-risk (5.7% vs. 7.4%, p = 0.12) and low-risk (1.1% vs. 1.6%, p = 0.25) patients. Short DBTs had similar relative risk reductions in patients with early presentation in high-risk (3.7% vs. 7.0%, p = 0.08) and low-risk (0.8% vs. 1.5%, p = 0.32) patients, although the absolute benefit was greatest in high-risk patients. Conclusions: Short DBTs (≤90 min) are associated with a lower mortality rate in patients with early presentation but have less impact on the mortality rate in patients presenting later. The absolute mortality rate reduction with short DBT is greatest in high-risk patients presenting early. These data may be helpful in designing triage strategies for reperfusion therapy in patients presenting to nonpercutaneous coronary intervention hospitals.

Original languageEnglish (US)
Pages (from-to)407-413
Number of pages7
JournalJournal of the American College of Cardiology
Issue number5
StatePublished - Jul 27 2010



  • door-to-balloon time
  • myocardial infarction
  • primary percutaneous coronary intervention

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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