BACKGROUND: The delay between onset of symptoms and coronary care unit admission is decisive in the outcome of patients with acute myocardial infarction. OBJECTIVE: To evaluate the influence of the factors that affect the delay in acute myocardial infarction treatment. METHODS: Multicenter case-control study conducted by 118 coronary care units in Italy. The median and mean times in cases and controls were compared for decision time, home-to-hospital time, and in-hospital time, and the influence of several potential risk factors on the delay was evaluated by comparison of patients admitted more than 6 hours after onset with those admitted within 6 hours after onset. RESULTS: Among 5301 patients with acute myocardial infarction, 590 who came to a coronary care unit after 12 hours were considered cases. Controls included 600 patients treated within 2 hours, 603 between 2 and 6 hours, and 466 between 6 and 12 hours. The median decision time among cases was 50-fold higher than that of controls who presented within 2 hours. Home-to-hospital time and in-hospital time appeared to play a less important role. Among the patient-related variables, advanced age, living alone, low intensity of initial symptoms, history of diabetes, strong pain at onset of the infarction, occurrence of symptoms at night, and involvement of a general practitioner seemed to affect delay significantly. CONCLUSION: Interventions aimed at reducing the delay in acute myocardial infarction treatment should primarily focus on the help-seeking behavior of patients.
BACKGROUND: The delay between onset of symptoms and coronary care unit admission is decisive in the outcome of patients with acute myocardial infarction. OBJECTIVE: To evaluate the influence of the factors that affect the delay in acute myocardial infarction treatment. METHODS: Multicenter case-control study conducted by 118 coronary care units in Italy. The median and mean times in cases and controls were compared for decision time, home-to-hospital time, and in-hospital time, and the influence of several potential risk factors on the delay was evaluated by comparison of patients admitted more than 6 hours after onset with those admitted within 6 hours after onset. RESULTS: Among 5301 patients with acute myocardial infarction, 590 who came to a coronary care unit after 12 hours were considered cases. Controls included 600 patients treated within 2 hours, 603 between 2 and 6 hours, and 466 between 6 and 12 hours. The median decision time among cases was 50-fold higher than that of controls who presented within 2 hours. Home-to-hospital time and in-hospital time appeared to play a less important role. Among the patient-related variables, advanced age, living alone, low intensity of initial symptoms, history of diabetes, strong pain at onset of the infarction, occurrence of symptoms at night, and involvement of a general practitioner seemed to affect delay significantly. CONCLUSION: Interventions aimed at reducing the delay in acute myocardial infarction treatment should primarily focus on the help-seeking behavior of patients.
Authors: Karen L Kaplan; Patricia Fitzpatrick; Christopher Cox; Nicolas W Shammas; Victor J Marder Journal: J Thromb Thrombolysis Date: 2002-02 Impact factor: 2.300
Authors: Barbara Farquharson; Stephan Dombrowski; Alex Pollock; Marie Johnston; Shaun Treweek; Brian Williams; Karen Smith; Nadine Dougall; Claire Jones; Stuart Pringle Journal: Open Heart Date: 2014-08-12