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Figure 4 Influence of Patient Arrival Period on Time to Treatment

Regular hours include weekdays, 7 AM to 5 PM. Off hours include weekdays, 5 PM to 7 AM, and all weekend times. (A) Guideline adherence for fibrinolytic therapy and percutaneous coronary intervention (PCI) by patient arrival period. The American College of Cardiology/American Heart Association guidelines recommend that door-to-drug times be 30 min and door-to-balloon time 90 min. (B) Door-to-drug and door-to-balloon subintervals by patient arrival. Door to data is time from hospital arrival to electrocardiogram (ECG) completion. Data to drug is time from ECG completion to administration of fibrinolytic therapy. Data to catheter lab is time from ECG completion to arrival at catheterization laboratory. Catheter lab to balloon is time from arrival at cardiac catheterization laboratory to balloon inflation. Reprinted with permission from Magid et al. (42).