Process factors affecting door to percutaneous coronary intervention for acute myocardial infarction patients

Michael A Horst1, Jennifer J Stuart, Nichole McKinsey

  • 1Lancaster General Research Institute, Lancaster General Hospital, PA 17604, USA. mahorst@lghealth.org

Insights

Prompt reperfusion for acute myocardial infarction (AMI) patients is crucial. Key factors delaying door-to-balloon time include portable chest X-rays, mode of arrival, and emergency department visit timing.

Area of Science:

  • Cardiology
  • Healthcare Management
  • Public Health

Background:

  • Timely reperfusion therapy is critical for improving outcomes in patients with acute myocardial infarction (AMI).
  • Door-to-balloon (D2B) time is a key metric for assessing the efficiency of AMI care pathways.
  • Identifying factors that influence D2B time is essential for optimizing treatment protocols.

Purpose of the Study:

  • To identify key predictor variables impacting door-to-balloon time in acute myocardial infarction (AMI) patients.
  • To analyze arrival, process, and patient-related factors influencing reperfusion delays.
  • To provide insights for improving the efficiency of AMI treatment in emergency departments.

Main Methods:

  • Cross-sectional study utilizing retrospective data from 273 patients over two calendar years (2006-2007).
  • Multivariate linear regression analysis to identify significant predictor variables for D2B time.
  • Examination of variables including patient arrival mode, diagnostic procedures, and emergency department (ED) encounter characteristics.

Main Results:

  • The average door-to-balloon time was 76.77 minutes (range: 28-167 minutes).
  • Significant predictors of delayed D2B time included portable chest X-ray, presentation as walk-in versus ambulance, time of ED arrival (day vs. night), ED day of arrival (weekday vs. weekend), prior 'code R' activation, and reported chest pain on ED admission.
  • Specific factors related to patient presentation and hospital processes were found to influence reperfusion timeliness.

Conclusions:

  • Several key factors significantly impact door-to-balloon time for acute myocardial infarction patients.
  • Optimizing emergency department workflows and patient triage processes can help reduce reperfusion delays.
  • Addressing identified predictors may lead to improved and more rapid treatment for AMI patients, enhancing clinical outcomes.

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