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Comparison of Inhospital Mortality and Frequency of Coronary Angiography on Weekend Versus Weekday Admissions in Patients With Non-ST-Segment Elevation Acute Myocardial Infarction Direct comparison of cardiac myosin-binding protein C with cardiac troponins for the early diagnosis of acute myocardial infarction Long-Term Incremental Prognostic Value of Cardiovascular Magnetic Resonance After ST-Segment Elevation Myocardial Infarction A Study of the Collaborative Registry on CMR in STEMI 2014 ESC/EACTS Guidelines on myocardial revascularization: The Task Force on Myocardial Revascularization of the European Society of Cardiology (ESC) and the European Association for Cardio-Thoracic Surgery (EACTS)Developed with the special contribution of the European Association of Percutaneous Ca Association of Parenteral Anticoagulation Therapy With Outcomes in Chinese Patients Undergoing Percutaneous Coronary Intervention for Non-ST-Segment Elevation Acute Coronary Syndrome Letter by Jiang et al Regarding Article, “Direct Comparison of Cardiac Myosin-Binding Protein C With Cardiac Troponins for the Early Diagnosis of Acute Myocardial Infarction” Impact of Off-Hours Versus On-Hours Primary Percutaneous Coronary Intervention on Myocardial Damage and Clinical Outcomes in ST-Segment Elevation Myocardial Infarction Patterns of use of angiotensin-converting enzyme inhibitors/angiotensin receptor blockers among patients with acute myocardial infarction in China from 2001 to 2011: China PEACE-Retrospective AMI Study Hospital Readmission After Perioperative Acute Myocardial Infarction Associated With Noncardiac Surgery Wearable Cardioverter-Defibrillator after Myocardial Infarction
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Original Research2014 Jul 1;114(1):24-8.

JOURNAL：Am J Cardiol. Article Link

Frequency of nonsystem delays in ST-elevation myocardial infarction patients undergoing primary percutaneous coronary intervention and implications for door-to-balloon time reporting (from the American Heart Association Mission: Lifeline program)

Cotoni DA1, Roe MT, Kontos MC et al. Keywords: ST-elevation myocardial infarction; primary percutaneous coronary intervention; door-to-balloon time

ABSTRACT

The percentage of patients with primary percutaneous coronary intervention (PCI) with door-to-balloon (D2B) times ≤90 minutes is used as a hospital performance measure for public reporting. Patients can be excluded from reporting for nonsystem-related delays. How exclusions impact D2B time reporting at the hospital level is unknown. The percentage of patients having nonsystem delays for primary PCI at the hospital level was calculated using data from the Acute Coronary Treatment Intervention Outcomes Network Registry-Get with the Guidelines Registry. Hospitals were categorized based on tertiles of percentage of excluded patients: low, ≤7.1%; intermediate, >7.1% to 11.2%; and high, >11.2%. From January 1, 2007, to March 31, 2011, 43,909 patients from 294 hospitals were included. The percentage of exclusions differed substantially among hospitals (0% to 68%, median 9.2% [interquartile range 5.6% to 13.5%]). Exclusion reasons included vascular access difficulty (7.6%), cardiac arrest/intubation (38%), and PCI procedural difficulties (20%). Including patients with nonsystem delays significantly increased D2B times by ≤2 minutes for each group. The effect was larger on the proportion of patients having a D2B ≤90 minutes (low 83.6% to 85%, intermediate 82.9% to 86.3%, high 82% to 87.5%, p <0.001, for all). If a criterion of having ≥90% of patients with D2B ≤90 minutes was used, excluding patients with nonsystem delays significantly increased the proportion of patients meeting this goal for each group: low, 28% to 37%; intermediate, 17.7% to 37.5%; and high, 14% to 52% (all p <0.01). In conclusion, the proportion of patients excluded from D2B reporting varies substantially among hospitals. This has a greater impact on percentage of patients with D2B time ≤90 minutes than on median D2B times.
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